Service Manual Colour Television

HV-29LPZ

SERVICE MANUAL COLOUR TELEVISION

BASIC CHASSIS

HV-29LPZ MF

HV-29LPZ/HK

HV-29LPZ/-A HV-29LPZ/EE

CONTENTS ! SPECIFICATIONS ････････････････････2 ! SPECIFIC SERVICE INSTRUCTIONS････ 8 ! SAFETY PRECAUTIONS ･･････････････3 ! SERVICE ADJUSTMENTS････････････ 14 ! MAIN DIFFERENCE LIST ･･････････････4 ! PARTS LIST ･･･････････････････････ 37 ! FEATURES･･････････････････････････4 ★ OPERATING INSTRUCTIONS ! FUNCTIONS ･････････････････････････6 ★ STANDARD CIRCUIT DIAGRAM ･･･････ 2-1

SPECIFICATIONS

Item Content

Dimensions ( W×H×D ) 73.2cm×58.7cm×51.8cm Mass 48.0kg TV RF System B/G, I, D/K, K1, M Colour System PAL / SECAM / NTSC 3.58 / NTSC 4.43 Stereo System A2 (B/G) / NICAM (B/G, I, D/K, K1) Teletext System Fastext (UK system) * [ * Without TEXT mode : HV-29LPZ/HK ] WST(world s tandard Texst ) VL 46.25MHz ～ 168. 25MHz Receiving VH 175.25MHz ～ 463.25MHz Frequency UHF 471.25MHz ～ 863.25MHz CATV Mid (X～Z+2, S1～S10), Super (S11～S20) & Hyp er (S21～S41) Intermediate VIF 38.0MHz Frequency SIF 32.5MHz(5. 5MHz) / 32. 0MHz(6.0MHz) / 3. 15MHz(6.5MHz) / 33.5MHz (4.5MHz) PAL 4.43MHz Colour Sub Carrier SECAM 4.40625MHz / 4.25MHz Frequency NT SC 3.58MHz / 4.43MHz Power Input AC 110V～240V , 50/60Hz

Power Consumption Max 254W / Avg. 170W

Aerial Input Term 75Ωunbalanc ed, Coaxial Picture Tube 29”(68c m) measured diagonally +1.0kV High Voltage 31.5kV -1. 5 kV (At zero beam current ) Au dio Power Output 20W + 20W Speaker φ10cm Round type×2 / φ3.5cm Round t ype×2 Video 1Vp-p 75Ω Au dio (L/R) 500mVrms(-4dBs), High Impedance Input Y : 1V (p-p) Positive (Negative s ync provided) 75Ω S / Video Terminal C : 0 .28 6V (p -p ) (b urst sig na l), 7 5Ω

Y : 1V (p -p ), 75 Ω Component Cb/Cr Cb : B-Y 0 .7V (p -p ), 7 5Ω / Cr : R-Y 0.7V(p-p), 75Ω Output Video 1V(p-p) 75Ω Terminal Audio(L/R) 500mVrms(-4dBs), Low Impedance

AV Compulink Mono mini jack (φ3.5mm ) Headphone jack St ereo mini jac k (φ3.5mm ) Remote Control Unit RM-C214 (AA/R06 / UM-3 , Dry cell battery×2) : HV -29LPZ / HV -29LPZ/-A / HV -29LP Z/EE RM-C215 (AA/R06 / UM-3 , Dry cell battery×2) : HV -29LPZ/HK

Design & speci fications are subject to change wi thout notice.

2 No.52012 HV-29LPZ

SAFETY PRECAUTIONS 1. The design of this product contains special hardware, many 9. Isolation Check circuits and components specially for safety purposes. For (Safety for Electrical Shock Hazard) continued prot ection, no changes should be made to the original Af ter re-ass embling the product, always perf orm an isolat ion design unless authorized in writing by the manufact urer. check on the exposed metal parts of t he cabinet (antenna Replacement parts must be ident ic al to thos e used in the original terminals, video/audio input and output t erminals, Control knobs, circuit s. Service should be performed by qualif ied pers onnel metal cabinet, screwheads, earphone jack, control shaf ts, etc.) only. to be sure the product is s af e t o operate without danger of elect rical shoc k. 2. Alterations of the design or circuitry of t he products should not be (1) Dielectric Strength Test made. Any design alterations or additions will void the The isolation between the AC primary circuit and all metal parts manufact urer's warrant y and will f urther relieve t he manufacturer exposed t o the us er, particularly any expos ed met al part having a of responsibility for personal injury or property damage result ing return path to t he chass is should withs tand a volt age of 3000V therefrom. AC (r.m.s.) for a period of one second. (. . . . Wit hstand a volt age of 1100V AC (r.m. s.) to an applianc e 3. Many electrical and mechanical parts in the products have rated up to 120V , and 3000V AC (r.m. s.) to an appliance rat ed special safety-related characteristics. T hese characteristics are 200V or more, for a period of one second.) oft en not evident f rom visual inspection nor can t he protect ion This method of test requires a test equipment not generally found aff orded by them necessarily be obtained by using replacement in t he servic e trade. components rated for higher voltage, watt age, etc. Replacement (2) Leakage Current Check parts whic h have these special s afet y charact erist ics are Plug the A C line c ord direct ly into the A C outlet (do not use a line identified in the parts list of Servic e manual. El ectrical isolation transf ormer during this check.). Using a " Leakage components having such features are identified by shading Current Tester", measure the leakage current f rom each exposed on the schematics and by (!) on the parts list in Service metal part of the cabinet, part icularly any expos ed metal part manual. The us e of a substitute replacement which does not having a return path to the chassis , to a known good eart h have the same saf ety charact erist ics as t he recommended ground (water pipe, etc.). Any leakage current must not exceed replac ement part shown in the parts list of Service manual may 0.5mA AC (r.m.s.). cause shock, fire, or other hazards. However, in tropic al area, this must not exceed 0.2mA AC (r.m.s.). 4. Don't short between the LIVE side ground and ISOLATED " Alternate Check Method (NEUTRAL) side ground or EARTH side ground when Plug the A C line c ord direct ly into the A C outlet (do not use a line repairing. isolation transformer during this check.). Use an AC volt meter Some model's power circuit is partly different in the GND. The having 1000 ohms per volt or more sens it ivity in the following diff erenc e of the G ND is shown by the LIV E : (") side GND, the manner. Connec t a 1500Ω 10W res ist or paralleled by a 0.15µF ISO LATED(NEUTRAL) : (#) side GND and EARTH : ($) side AC-type capacit or bet ween an exposed met al part and a known GND. Don't short bet ween the LIV E side GND and good earth ground (water pipe, etc.). Meas ure the AC volt age ISO LATED(NEUTRAL) side GND or EARTH side GND and across the res ist or with the AC voltmeter. Move the resistor never measure wit h a measuring apparatus (oscilloscope etc.) connec tion to each exposed metal part, part icularly any exposed the LI VE side GND and IS OLA TED(NE UTRAL) side G ND or metal part having a return pat h to the chassis, and measure the EARTH side GND at the s ame time. AC voltage ac ross the res ist or. Now, reverse the plug in the AC If above note will not be kept, a fuse or any parts will be broken. outlet and repeat eac h measurement. Any volt age measured must not exceed 0.75V AC (r.m.s.). This c orresponds to 0.5mA 5. If any repair has been made to the chassis, it is recommended AC (r.m.s.). that t he B1 set ting should be checked or adjusted (See However, in tropical area, this must not exceed 0.3V AC ( r.m.s.). ADJUSTMENT OF B1 POWER SUPPLY). This corresponds to 0.2mA AC (r.m.s.).

6. The high voltage applied t o the picture tube must conform wit h AC VOLTMETER that specified in S ervice manual. E xcessive high volt age can (HAVING 1000 Ω/V, cause an increase in X-Ray emission, arcing and possible OR MORE SENSITIVITY) component damage, therefore operation under excessive high voltage conditions should be kept to a minimum, or should be prevent ed. If s evere arc ing occurs, remove t he AC power μ immediately and determine the cause by visual inspect ion 0.15 F AC-T YPE (incorrect installat ion, cracked or melted high volt age harness, poor soldering, et c.). To maint ain the proper minimum level of PLACE THIS PROBE sof t X-Ray emission, c omponents in the high voltage circuitry ON E A CH EX PO SE D including t he pict ure tube must be t he exact replacements or 1500 Ω 10W ME T AL PA RT alternat ives approved by the manuf act urer of the c omplet e GOOD EARTH GROUND product.

7. Do not c hec k high volt age by drawing an arc. Use a high volt age meter or a high v oltage probe wit h a V TVM. Discharge the picture tube before attempting meter connection, by connecting a clip lead to the ground frame and connecting the other end of the lead through a 10kΩ 2W resistor to the anode butt on.

8. When service is required, observe the original lead dress. Extra prec aut ion should be given t o assure correct lead dress in the high voltage circuit area. W here a s hort circuit has occurred, those component s that indicate evidence of overheating should be replaced. A lways use the manuf act urer's replacement components.

No.52012 3 HV-29LPZ

MAIN DIFFERENCE LIST

Model name /HK /-A /EE ! Part n ame HV-29LPZ HV-29LPZ HV-29LPZ HV-29LPZ

MICOM PWB SMF0M901A-H2 SMF0M902A-H2 SMF0M903A-H2 SMF0M904A-H2

! POWER CORD QMP4 0D0-20 0J5 QMPN05 0-20 0-E2 QMPR01 0-20 0-E2 QMP4 0D0-20 0J5

! FRONT CABI.ASSY LC11193-008B-H LC11193-023A-H LC11193-008B-H

! REAR COVER LC10763-007B-HH LC10763-002D-H LC10763-007B-HH

! RATING LABEL LC20377-001B-H LC20377-012B-H LC20413-002B-H LC20377-009B-H

! INST BOOK LCT1215-001A-H LCT1217-001A-H LCT1215-001A-H LCT1218-001A-H

! DIGEST MANUAL ××LCT1216-001A-H ×

! CONVERSI ON PLUG ××QAM0055-001 ×

WARRANTY CARD ×××BT-54012-2

REMOTE CONTROL UNIT RM-C214-1C RM-C215-1C RM-C214-1C

FEATURES " New chassis design enable us e of an interac tive on screen " Built-in ECO (ECONOMY, ECOLOGY) MODE. control. In accordance with the bright ness in a room, the brightness " The TELETEXT SYSTEM has a built-in FASTEXT (UK system), and/ or contrast of the pict ure can be adjusted automat ic ally to and WST (world standard system) system. make the optimum picture which is eas y on the eye. * E xc ept HV -29LPZ/HK. " Pure FLA T CRT reproduc e fine t extured. " Digi Pure pro : Auto digi pure with mot ion picture c ompensat ion. " Becaus e this TV unit corresponds t o multiplex broadcast, users can enjoy music programs and sporting events with live realism. In addition, BI LINGUAL programs can be heard in their original language.

4 No. 52012 HV-29LPZ

SYSTEM BLOCK DIAGRAM

MICOM PWB

IC 001 IC 004 MICRO COMPUTER MEMORY SDA 0 SCL 0

SDA 2 SDA 1 SCL 2 SCL 1

MAIN PWB

IC 301 IC 701 DEF & RGB BBE CONTROL PROCESSOR

IC 101 TU0 01 MULTI SOUND TUNER PROCESSOR

SYNC SEP PWB 100Hz PWB

IC 101 IC 301 VIDEO PROCESS SYNC SEP PWB & CODEC MAIN

AV SW PWB IC 151 VIDEO PROCESS & CODEC SUB IC 101 SW

IC 201 SAMPLE RATE CONVERTER

TU0 01 TUNER

IC 301 ENHANCE

No. 52012 5 HV-29LPZ

FUNCTIONS

■ Front Terminal & Control

1 HEADPHONE jack 7 SENSOR (Remote Control & ECO) 2 VIDEO-4 terminal (S-VIDEO / VIDEO / L/MONO / R) 8 SPATIALIZER LAMP 3 MENU/OK Button 9 ECO LAMP 4 CHANNEL -/+ (MENU UP/DOWN) Button A POWER LAMP 5 VOLUME -/+ (MENU LEFT/RIGHT) Button B POWER SW Button (MAI N P OWER on and off ) 6 TV/VIDEO / EXIT Button (Input s elect)

■ Rear Termin al

1VIDEO-1 (INPUT) terminal (S, V, L, R) 2VIDEO-2 (INPUT) terminal (V, L, R) 3 VIDEO-3 (INPUT) terminal (V/Y, Cb, Cr, L, R) / COMPONENT 4OUTPUT (AUDIO/VIDEO) terminal (V, L, R) 5AV COMPULINK terminal 6AERIAL socket

6 No. 52012 HV-29LPZ

■ Remote Control Unit

1 POWER Key (SUB PO WER on and of f) 2 BASS Key (SUPER BASS function on or off ) 3 SPATIALIZ ER Key (Choos e a mode LI VE →MO NO →OFF) 4TV/VIDEO Key 5PICTURE MODE Key (Choos e a mode BRIG HT →STANDARD→SOFT) 6ZOOM Key (Choose a mode REGULAR→ZOOM→16:9) 7CHANNEL Key 8-/-- Key 9RETURN + Key AMULTI Key BVOLUME +/- Key CCHANNEL +/- Key DMUTING Key EPIP MODE FPIP Key GPOSITION Key HFREEZE Key View t he MA IN picture’s f rozen image as t he SUB-PICTURE. ISUB P (PIP)+&- Key JNEXT Key KSWAP Key LSTROBE Key View t he MA IN-pict ure as 15 c onsec utive Still image. MDISPLAY Key NSTEREO Ⅰ/ⅡKey : Stereo / : Mono Ⅰ : Bilingual (subⅠ) Ⅱ : Bilingual (subⅡ) OFUNCTION Key(▲/▼& / ) PMENU/OK Key QCOLOUR Key (Choose the appropriate colour system.) RCOLOUR SYSTEM Key (Choose the appropriate colour system.) SSOUND SYSTEM Key (Choose the appropriate sound system.) UTELETEXT Key (W ithout HV-29LPZ/HK)

No. 52012 7 HV-29LPZ

SPECIFIC SERVICE INSTRUCTIONS DISASSEMBLY PROCEDURE

REMOVING THE REAR COVER CHECKING THE PW BOARD 1. Unplug t he power c ord. To check the back side of the PW B oard. 2. Remove the 16 screws marked ! as shown in the Fig. 1. 1) Pull out the chassis . (Refer to REMOVING THE CHASSIS). 3. Withdraw t he rear cover toward you. 2) Erect the chassis vertically so that you can easily check the back side of the PW B oard.

REMOVING THE AV TERMINAL BOARD [CAUTION] " After removing the rear cover. " When erecting the chassis, be careful so that there will be no 1. Remove the 5 screws marked " as shown in t he Fig. 1. contacting with other PW Board. 2. Withdraw the AV terminal board toward you. " Before turning on power, make sure that the wire connector is properly connec ted. " When conducting a check with power supplied, be sure to c onfirm REMOVING THE CHASSIS that t he CRT E ARTH WI RE (B RA IDED AS S’Y) is connected t o " After removing the rear cover. the CRT SOCKE T PW board. 1. Slight ly raise the both sides of the chassis by hand and remove the 2 claws under the both s ides of the chas sis from the front cabinet . WIRE CLAMPING AND CABLE TYING 2. Withdraw t he chass is backward. 1. Be sure to clamp the wire. (If necessary, take off the wire clamp, connectors etc.) 2. Never remove the c able tie used f or tying the wires together. Should it be inadvert ent ly removed, be sure to tie the wires wit h REMOVING THE DOME SPEAKER BOX / SPEAKER a new c able tie. " After removing the rear cover. DOME SPEAKER BOX 1. As s hown in Fig. 1, remove t he 2 screws marked #, t hen remove the dome speaker box. 2. Remove the 5 screws marked $ as shown in the Fig. 2, t hen SPEAKER HORN remove the dome box. (Tweeter) 3. Remove the 4 screws marked % as shown in the Fig. 2, t hen remove the HONE RING. F (×4) 4. Remove the 4 screws marked & as shown in the Fig. 2, t hen remove the speaker. E 5. Follow the same steps when removing the ot her hand dome (×4) speaker box / speaker. NOTE : When removing the screws marked # of the dome speaker G box, remove the lower side sc rew first, and then remove the (×7) upper one. SPEAKER

HORN REMOVING THE TWEETER SPEAKER PANEL HORN RING " After removing the rear cover. 1. Remove the 7 screws marked ' as shown in the Fig. 2, t hen DOME BOX remove the HONE PANEL. D 2. Then remove the t weet er speaker screws to remove it. (×5)

Fig. 2

8 No.52012 HV-29LPZ

DOME SPEAKER BOX FRONT CABINET

CRT SOCKET PWB FRONT C CONT RO L PWB (2/2) CONT RO L BASE MICOM PWB POWER & DEF PWB CLAW CHASSIS 100Hz PWB FRONT AV CONT RO L TERMINAL PWB (1/2)

CONT RO L BASE BLK MAIN PWB CLAW PWB

AV SW PWB C

(×5)

DOME SPEAKER BOX POWER CORD

REAR COVER

A (×15)

Fig. 1

No.52012 9 HV-29LPZ

REMOVING THE CRT

∗ Replacement of the CRT should be performed by 2 or more pers ons. CRT CHANGE TABLE • After removing the cover, chassis etc., 1. Putting the CRT change table on sof t cloth, the CRT change table should also be c overed with s uch soft clot h (shown in Fig. 3). APPROX. 2. While keeping the s urf ac e of CRT down, mount the TV s et on t he 35cm CRT change table balanced will as shown in Fig.4. 3. Remove 4 sc rews marked by arrows with a box type screw driver CLOTH as s hown in Fig. 4. • Sinc e the cabinet will drop when screws have been removed, be sure to support the cabinet with hands. 4. After 4 screws have been removed, put the cabinet slowly on cloth (At this time, be carefully so as not to damage the front Fig. 3 surfac e of the c abinet) shown in Fig. 5. • The CRT should be ass embled according to the opposite sequence of its dismounting steps. ∗ The CRT change table should pref erably be smaller that the CRT surfac e, and its height be about 35c m. (Fig.3) ∗ About CRT S pacer (Fig.4) An appropriate CRT spacer should be used in the corresponding CRT in acc ordance with the t ype of t he CRT. When a CRT is replaced, special att ention should be paid to t his matter.

Fig. 4

CRT

COATING OF SILICON GREASE FOR ELECTRICAL INSULATION ON THE CRT ANODE CAP SECTION.

• Subsequent to replacement of the CRT and HV transformer or repair of the anode cap, etc. by dismounting them, be sure to coat silic on greas e for elect rical insulat ion as shown in Fig.6. CABINET CRT Wipe around t he anode butt on with clean and dry clot h. (Fig.6) CHANGE TABLE Coat silicon grease on t he section around the anode butt on. At this time, take care so that any silicon greases dose not stick to the anode button. (Fig.7) Fig. 5 ★ Silicon grease product No. KS - 650N

CRT Anode butt on Approx. Silic on greas e 20mm (Do not should be coated coat grease on by 5mm or more this section from the outs ide diameter of anode c ap.

Anode butt on Silic on greas e (No sticking of Coat ing posit ion coating silicon grease) of silicon grease

Anode cap

Fig. 6 Fig. 7

10 No. 52012 HV-29LPZ

REPLACEMENT OF MEMORY ICs 1. Memory ICs This TV use memory ICs. In the memory ICs, there are memorized data for correctly operating the video and def lection circuits . When replacing memory ICs, be s ure t o us e ICs written with the initial values of data.

SERVICE MENU 2. Procedure for replacing memory ICs 1. IF 2. V/C (1) Power off 3. AUDIO 4. DEF 5. VS M PRES ET 6. S TATUS Switch the power of f and unplug the power cord f rom t he wall outlet. 7. PIP 8. W B PRE SET 9. SHIPPING(OFF) 0. BUS FREE (2) Replace ICs. Be sure to use memory ICs written with the initial data values. 1-0 : SELECT DISP : EXIT (3) Power on Plug the power c ord int o the wall outlet and switch the power on. Fig.1 (4) Check and set SYSTEM CO NSTANT SET : * It mus t not adjust without signal. 1) Press the DISP LA Y key and t he PICTURE TUBE key of the REMOTE CONTRO L UNIT simultaneously. 2) The SERVICE MENU screen of Fig. 1 will be displayed. 3) While the SERVI CE MENU is dis played, press t he DISP LA Y key and PI CTURE TUBE key simultaneously, and t he S YSTE M CONSTANT S ET screen of Fig. 2 will be display ed. 4) Check the set ting values of the S YSTEM CONSTA NT SET of Table 1. If the value is dif ferent, select the setting it em with the FUNCTION UP/DOWN key, and set the correct value with the FUNCTION -/+ key. 5) Press the MENU(OK) key to memorize the setting value. 6) Press the INFORMATION key, and return to the normal screen.

SERVICE MENU KEY

SYSTEM CONSTANT SET

1. TEXT **

ZOOM SERVICE (ASPECT) MENU/ key &SYSTEM +OK : STORE DISP : EXIT CONSTANT key SETTING ITEM SELECT key (Numbers key) Fig.2

2. BLUE BACK MENU ** PICTURE 3. E.M.C ** CONTENTS 4. WHITE BACK ** key 5. COLOUR AUTO ** 6. PICTURE TILT **

PIP key (5) Setting of recei ve channels Set the rec eive channel. For setting, refer to the OPERATING INSTRUCTIONS.

(6) Setting of SERVICE MENU FUNCTION key Verif y the set ting it ems of the SERVICE MENU of Table 2, and (UP/DOWN & LEFT/RIGHT key) reset where nec essary. For setting, refer to the SERVICE ADJUSTMENTS. MENU/OK key

(7) User settings MEMORY (STORE) Check the us er s ett ing values of Table 3, and if sett ing value is key diff erent , set the c orrec t value. For setting, refer to the OPERATING INSTRUCTIONS.

No. 52012 11 HV-29LPZ

SETT ING VALU ES OF SYSTEM CON STANT SET (TABLE 1)

MODEL No. HV-29LPZ HV-29LPZ/-A HV-29LPZ/HK HV-29LPZ/EE Setting item

1. TEXT YES YES NO YES

2. BLUE BACK MUTE NO YES NO ←

3. E. M. C NO ←←←

4. WHITE BACK NO ←←←

5. COLOUR AUTO NO YES NO ←

6. PICTURE TILT YES ←←←

SERVICE MENU SETTING ITEMS (TABLE 2)

Setting item Setting value Setting item Setting value

1. IF 1. VCO 5. VSM PRESET 1. CONT. 2. ATT ON / OFF 2. BRIGHT BRIGHT 3. SHARP STANDARD 4. COLO UR SOFT 5. TINT

2. V / C 1. RGB BLK 2. WDR R 3. WDR G 4. WDR B 5. BRIGHT 6. CONTRAST 6. STATUS 1. SOFT 7. COLO UR (Do not adjust) 2. TELETEXT 8. TINT 3. ASPECT 9. SHARP 10. VCO ADJ . 11. VID A DJ. 12. SYNC SLICE

3. AUDIO 1. ERR LIMIT 7. PIP 1. PIP VCO ADJ (Do not adjust) 2. A2 ID THR 2. PIP VI D AGC 3. SYSTEM 3. PIP SYNC SLICE

4. DE F. 1. V-SHIFT 8. WB PRESET 1. WDR R 2. V-SIZE 2. WDR G 3. H-CENT 3. WDR B 4. H-S IZE 5. TRAPEZ 6. EW-PIN 7. COR-PIN 8. COR-UP 9. COR-LO 10. ANGLE 11. BOW 12. V-S.CR 13. V.LIN 14. V.BLK-UP

12 No. 52012 HV-29LPZ

USER SETTING VALUES (TABLE 3)

Setting item Setting value Setting item Setting value

MAIN POWER SW OFF SUB POWER ON

SHIPPING CHANNEL PR1 DISPLAY INDICATED

See ; OPERATING PRESET CHANNEL VOLUME LEVEL 10 INSTRUCT IONS. PICTURE SETTING INSTALL

PICTURE MODE BRIGHT LANGUAGE ENGLISH

WHITE MODE MID EDIT " PRESET CHANNEL O NLY " ECO MODE OFF OTHER : NON (SPACE)

PICTURE FEATURES FEATURES

DIGITAL VNR AUTO SLEEP TIMER OFF

DIGIPURE PRO AUTO BLUE BACK ON

COLO UR SYSTEM " TV : Depends on PR/CH AUTO SHUT OFF OFF

" EXT : AUTO VIDEO-3 SETTING COMPONENT

ZOOM REGULA R CHI LD LO CK OFF (for all t he channels)

PICTURE TILT CENTER CHANNEL GUARD ALL CH : OFF

SOUND

BASS CENTER BEE ON

TREBLE CENTER SUPER BASS ON

BALANCE CENTER AI VOLUME ON

SPATIALIZER OFF

No. 52012 13 HV-29LPZ

SERVICE ADJUSTMENTS BEFORE STARTING SERVICE ADJUSTMENT 1. There ar e 2 w ays of adjusting this TV: One is wi th the 7. Preparation f or adjustment (pres etting): REMOTE CONTROL UNIT and the other is the conventional Unless otherwis e specified in the adjust ment it ems, preset the method using adjustment parts and components. following functions with the REMOTE CONTROL UNIT: 2. The setting (adjustment) using the REMOTE CONTROL " Setting position UNIT is made on the basis of th e initial setting values. The PICTURE MODE (VSM) STANDARD setting values which adj ust the screen to the optimum SLEEP TIMER OFF condition can be different from the initial setting values. BALANCE CENTER 3. Make s ure that connect ion is c orrect ly made t o AC power source. ECO OFF 4. Turn on the power of the TV and measuring instrument for ZO OM REGULAR warming up f or at least 30 minut es bef ore start ing adjustment . 5. If the rec eive or input signal is not specified, use t he most appropriate s ignal f or adjust ment. 6. Never touch parts (such as variable resis tors, t ransf ormers and condensers) not shown in the adjustment items of this service adjustment.

MEASURING INSTRUMENT AND FIXTURES 1. DC voltmeter (or digital voltmeter) 2. Oscilloscope 3. Signal generat or (Patt ern generat or) [ PAL / SECAM / NTSC] 4. Remote control unit

ADJUSTMENT ITEMS ● Check ing it ems. ● Adjustment of FOCUS/SCREEN. ● VS M preset sett ing. ● VIDEO / CHROMA circuit adjustment. ● DEFLECTION circuit adjustment. ● AUDIO circuit adjustment. (Do not adjust)

14 No. 52012 HV-29LPZ

ADJUSTMENT LOCATIONS

FRONT CONTROL PWB (1/2) FRONT CONTROL PWB (2/2) TV/VID EO EXT VO L UP VO L DO WN PO WER SW R4 L4 V4 S IN PO WER SP E T IA LI ZE R ECO CD S FRONT MENU/ IN (VIDEO -4 ) HEA D FRONT O K PHO NE CH DO WN CH UP F901 W J J

F C9 0 1 PW CN 00 2 LF90 1

Po w er cord T o AV SW P WB MAIN PWB POWER&DEF PWB

CN111 FRONT CN 00 2 W DEG FRONT

R3 Speak er MICOM P WB

CN 00 4

CN 00 7

CN 00 5

AV SW PWB 10 0H z PWB

T UNER 2

HV SYNC CN 00 6 PWB BLK PWB CN 00 3

HVT X CN 00 1 1 TUNER

C1 5 CN 014 1pin:B1(TP-91) 2 pin:NC CN 01 3 3 pin:X- RAY S 4 pi n:X- RAY IN 5pin:G ND

ANT-IN F F. CONT.(L) PWB CRT SOCKET PWB

TP-E E1 F OC US 2 VR CRT F OC US 1 VR SCR EEN VR TP-47B

FRONT YH C YV (VR 2 ) (VR 1) VM

XV C OIL CN 01 3 CN 01 4 TOP

TP-Y VM

(SOLDE R SI DE)

No. 52012 15 HV-29LPZ

BASIC OPERATION SERVICE MENU

1. TOOL OF SERVICE MENU OPERATION Operate the SERVICE MENU with the REMOTE CONTROL UNIT.

2. SERVICE MENU ITEMS With the SERVI CE MENU, various sett ings (adjustments) can be made, and they are broadly classif ied in the f ollowing items of set tings (adjus tments ): (1) 1. IF ･･････････････････････････････ This mode adjusts the setting values of the IF circuit. (2) 2.V /C ･････････････････････････････ This mode adjusts the setting values of the VIDEO / CHROMA circuit. (3) 3.AUDIO ･･････････････････････････ This mode adjust s the setting values of the SOUND circuit . (Do not adjust) (4) 4. DEF ･････････････････････････････ This mode adjust s the setting values of the DE FLECTION circ uit for eac h aspect mode given below.

ZOOM (ASPECT) V. FREQ.

REGULAR 100Hzi / 60HzP ZOOM ↑ 16 : 9 ↑

(5) 5.VSM PRESET････････････････････ This mode adjust s the initial s ett ing values of Bright, S tandard & s oft. (VSM : Video Status Memory) (6) 6.S TAT US ･････････････････････････ It is no requirement to adjus tment. (7) 7. PIP ･････････････････････････････ This mode adjusts the setting values of the PIP circuit. (PIP : Picture In Picture) (8) 8.WB PRESET ･････････････････････ This mode adjust s the setting values of the WHITE B ALA NCE. (9) 9.SHI PPI NG (OFF) ･･････････････････ This mode adjust s the setting values of the channel pres ettings. If you turn the SHIPPING position set ON. This setting becomes c hannel pres etting automatically. Also you turn the TV power off, this s etting become OFF position automatic ally. (10) 0. BUS FRE E ･･････････････････････ It is not requirement to adjustment.

16 No. 52012 HV-29LPZ

3. BASIC OPERATION OF SERVICE MENU (1) How to enter SERVICE MENU Press the PI CTURE MODE key and the DISP LA Y key of the SERVICE MENU REMOTE CONTROL UNIT simultaneously, and the SERVICE MENU screen of Fig. 1 will be displayed. SERVICE MENU

1. IF 2. V/C 3. AUDIO 4. DEF 5. VS M PRES ET 6. S TATUS (2) Selection of SUB MENU SCREEN 7. PIP 8. W B PRE SET 9. SHIPPING(OFF) 0. BUS FREE Press one of keys 1～0 of the REMOTE CONTROL UNIT and select the SERVICE MENU SCREEN (See Fig. 3), form the 1-0 : SELECT DISP : EXIT SERVICE MENU. SERVICE MENU → SUB MENU 1. IF Fig.1 2. V / C 3. AUDIO (Do not adj.) 4. DE F. SERVICE MENU KEY 5. VSM PRESET 6. STATUS (Do not adj.) 7. PI P 8. WB PRESET 9. SHIPPING (OFF) 0. BUS FREE ZOOM SERVICE (ASPECT) MENU/ key &SYSTEM CONSTANT key SETTING ITEM SELECT key (Numbers key)

PICTURE CONTENTS key

PIP key

FUNCTION ke y (UP/DOWN & LEFT/RIGHT key)

MENU/OK key MEMORY (STORE) key

No. 52012 17 HV-29LPZ

SERVICE MENU SCREEN

SERVICE MENU

SERVICE MENU 1. IF 2. V/C 3. AUDIO 4. DEF 5. VSM PRESET 6. STATUS 7. PIP 8. WB PRESET 9. SHIPPING(OFF) 0. BUS FREE

1- 0 : S ELE C T DI SP : EX IT

SUB MENU

1. I F (CW) 5. VSM PRESET

VCO (CW) ******...****MHz VSM PRESET STD IF SERVICE MENU MAIN SUB BRIGHT 1. VCO 1.CONT *** T OO HIG H STANDARD 2. A TT O N / OF F ABOVE REF SOFT JUST REF BELOW REF T OO LOW 1. CONT. 1- 2 : S ELE C T DI S P : EX I T DISP : EXIT 2. BRIGHT - / + OK : STORE DISP : EXIT 3. SHARP 4. COLOUR 5. TINT IF A TT ON /O FF ** 6. STATUS (Do not adjust)

STATUS 1. SOFT 2. TELETEXT 1. S OF T *** 3. ASPE CT - / + OK : STORE DISP : EXIT

(ON or OFF) - / + OK : STORE DISP : EXIT 2. V/C

V/C PAL 1. RGB BLK 2. WDR R 1. R G B. BLK **** 3. WDR G 7. PI P 4. WDR B 5. BRIGHT 6. CONTRAST PIP AUTO 7. COLOUR 1. PIP VCO ADJ - / + OK : STORE DISP : EXIT 8. TINT 2. PIP VID AGC 1. PIP VCO ADJ *** 9. SHARP 3. PIP SNC SLI 10. VCO ADJ 11. VID AGC 12. SYC SLI - / + OK : STORE DISP : EXIT 3. AUDIO (Do not adj ust)

AUDIO 1. ERR LIMIT 2. A2 ID THR 1. ERR LIMIT *** 3. SY STEM ERROR _ RATE= **** 8. WB PRESET

- / + OK : STORE DISP : EXIT WB PRESET *** 1. WDR R 2. WDR G 1. W DR R ** 1. V-SHIFT 3. WDR B 2. V-SIZE 3. H-CENT 4. DEF 4. H-SIZE 5. TRAPEZ - / + OK : STORE DISP : EXIT DEF REGULAR ***Hz 6. EW-PIN 7. COR-PIN 8 . C OR- UP *** * 1. V-SHIFT 9. COR-LO (*** *) 10.ANGLE 11.BOW 12.V-S.CR - / + OK : STORE DISP : EXIT 13.V.LIN 14. V.BLK-UP

Fig. 3

18 No. 52012 HV-29LPZ

(3) Method of Setting " Method of Set ting 1. IF [VCO] ･･･････････････････････････ * It must not adjust without signal ① 1 K ey ･････････････････････････ Select 1.IF. ② 1 K ey ････････････････････････ Select 1. VCO (CW) Check the arrow position between the ABO VE RE F. and B ELOW REF. ③ 2 K ey ･････････････････････････ Select 2.ATT ON/OFF (Strong Elec tric Field : ON / Generally Electric Field : OFF) ④ DISPLAY(DISP) Key････････････ Return to the SERVICE MENU screen.

" Method of s ett ing 2.V/C, 4.DEF, 5.VSM PRESET, 7.PI P and 8.WB PRESET. ① 2, 4, 5, 7 & 8 Key･･･････････････ Select one from 2. V/C, 4. DEF, 5. VSM PRESET, 7. PIP & 8.WB PRESET. ② FUNCTION UP/DOWN Key ･･････ Select s etting items. ③ FUNCTION -/+ ･････････････････ Set (adjust) the setting values of the setting items. ④ MENU (OK) Key ･･･････････････ Memorize the setting value. (Bef ore st oring t he s ett ing values in memory, do not press t he CH, TV , P OWER ON / OFF key - if you do, the values will not be stored in memory.) ⑤ DISPLAY (DI SP) Key ･･･････････ Return to the SERVICE MENU screen.

" 3. AUDIO, 6. STATUS, 9. SHIPPING(OFF) & 0. BUS FREE. It is not requirement to adjustment .

(4) Release of SERV ICE ME NU 1) Af ter completing the setting, ret urn t o t he SERVICE ME NU, then again press the DISP LA Y (DI SP) key.

No. 52012 19 HV-29LPZ

ADJUSTMENT CHECKING ITEM

Item Measuring Test point Adjustment part Description instrument Check of B1 Signal TP-91(B1) 1. RGB BLK 1. Receive any broadc ast. Power Supply Generator TP-E(#) 2. Press the ZOOM key and select t he FULL mode. [X connector 3. Select 2. V/C from the SERVICE MENU. DC voltm eter on POWER 4. Select 1. RGB BLK with function UP / DOWN key. DE F PW B] 5. Press t he function ( ) key t o f ind t he cut off screen (Blac k Remote screen). Control unit 6. Connect a DC voltmet er t o TP-91(B 1) and TP-E(#). 7. Make sure t hat the volt age is DC139.9 ±2.0V. 8. Press the function ( ) key to return to service menu.

Check of High Signal CRT anode 1. RGB BLK 1. Receive any broadc ast. Voltage Generator 2. Press the ZOOM key and select t he FULL mode. 3. Select 2. V/C from the SERVICE MENU. Chassis GND 4. Select 1. RGB BLK with function UP / DOWN key. DC volunteer 5. Press t he function ( ) key t o f ind t he cut off screen (Blac k screen). Remote 6. Connect a DC voltmeter to CRT ANODE and chassis GND. +1kV Control unit 7. Make sure t hat the volt age is DC 31.5kV -1.5kV . 8. Press the function ( ) key to return to service menu. * Remove the probe bef ore removing the earth clip.

Check of VCO Remote 1. VCO " Under normal c onditions, no adjust ment is required. control unit 2. ATT ON/OFF " Confirmation adjustment.

1. Select 1.IF from the SERVICE MENU. 2. Then select 1.VCO from the IF SERVICE MENU. 3. Receive any broadc ast. IF SERVICE MENU 4. Check the MAIN arrow ( ) position between the A BOV E REF. and BELOW REF. 1. VCO 2. ATT ON/ OF F 5. Press the MENU (OK) key and receive any broadcast with PIP Button. 6. Check the SUB arrow ( ) position between the ABOV E RE F 1-2 : SELECT DISP : EXIT and B ELOW RE F.

* The arrow ( ) position means AFC voltage level. * 2. ATT ON/OFF : Generally Electric Field : OFF : Strong Elec tric Field : ON * Change the MAI N and SUB by MENU/OK key .

VCO(CW) ****MHz MAIN SUB TO O HI GH ABOVE REF JUST REF BELOW REF TOO LOW DISP : EXIT

20 No. 52012 HV-29LPZ

ADJUSTMENT OF FOCUS & SCREEN

Item Measuring Test point Adjustment part Description instrument Adjustment of Signal FOCUS 1 VR(In HVT) 1. Receive a cross -hatc h signal. FOCUS generator FOCUS 2 VR(In HVT) 2. Press the ZOOM key and select t he regular mode. 3. By t urning the FOCUS 1 VR, adjust the t o make the vertical lines as fine and sharp as possible. 4. By turning the FOCUS 1 VR, adjust the picture so that the 5t h HVT vertical line from left side of the cross-hatch pict ure becomes thinnes t. 5. By t urning the FO CUS 2 VR(In CRT SOCKE T PWB ), adjust the 3rd horizontal line from the upper side may become unif orm at the line c ent er and it s periphery . FOCUS 2 VR FOCUS 1 VR 6. Carry out adjustment by repeat ing the steps 3, 4 and 5 about. SCREEN VR 7. Make sure that the screen is darkened, the lines remain in good focus.

FOCUS 2 VR FOCUS 1 VR

1 2 12 34 53

Adjustment of Signal SCREEN VR 1. Receive a whole blac k signal . SCREEN VR generator (In HVT) 2. Press the ZOOM key and select t he regular mode. 3. Select 2. V/C from the SERVICE MENU. 4. Rotate the SCREEN VR (I n HV T) clock wise(from 1→0→1) from the full counterclockwise sl ow ly and stop it at the point where “CLOW” status (marked in Fig. ) changes from 1 to 0 (which is indic ated at the 3rd column from the right.). V/C PAL * “CLOW” : c ontrol loopout of window. 1. RGB _ BLK 00

- / + OK : STORE DISP : EXIT CLOW 0 0 0 0 0 11 0 0 status

SERVICE MODE SCREEN

No. 52012 21 HV-29LPZ

VSM PR ESET SETTING

Item Measuring Test point Adjustment part Description instrument Setting of Remote 1.CONT. 1. Select 5.VSM PRESET from the SERVICE MENU. VSM PRESET control unit 2. BRIG HT 2. Select STD with the PICTURE MODE key of the remote control 3. SHARP unit. 4. COLOUR 3. Adjust t he function UP/ DOWN and LE FT/RIGHT key to bring 5. TINT the set values of 1. CONT ～ 5. TINT to the values shown in the t able. 4. Press the MENU/OK key and memorize the set value. 5. Respectively select the VSM PRESET mode for REGULAR and BRIGHT, and make similar adjustment as in 3 above. 6. Press the MENU/OK key and memorize the set value. ∗ Refer to OPERATING INSTRUCTIONS for the PICTURE MO DE .

Setting item 1. CONT. 2. BRIGHT 3. SHARP 4. COLOUR 5. TINT VS M pr ese t mode BRIG HT +16 -2 +5 +5 0 STANDARD +20+200 SOFT 0-2-10-20 SETTING VALUES OF VSM PRESET

22 No. 52012 HV-29LPZ

VIDEO/CHROMA CIRCUIT ADJUSTMENT

The setting (adjustment) using the REMOTE CONTROL UNIT is made on the basis of the initial setting values. The setting values which adjust the screen to the optimum condition can be different from the initial setting values.

" marked % :Do not adjust

Colour system Initial setting valueColour system Initial setting value

Setting item PAL SE CAM NT SC Setting item PAL SE CAM NT SC

RGB BLK 8.TINT 000 % 2.WDR R 000 9.S HARP +007 Automatic ally optimized 3.WDR G 000 10 .VCO ADJ US TM ENT aft er adjust ment % % 4.WDR B -010 11.VID AGC 000 % 5. BRIG HT 000 12.SYC SLI +007 % 6.CONTRAST 000 13.A MOVIE +001

7.COLO UR 000 000 000

Measuring Item instrument Test point Adjustment part Description

Ad just ment Signal 2.WDR R " Set the PICTURE MODE to COOL. of WHITE generator 3.WDR G 1. Receive a black and white signal (colour off ). BALANCE 2. Select 2. V/C from the SERVICE MENU. (High-Light) Remote 3. Modif y 2. W DR R and 3. WDR G data to adjust t he white control unit balance ( high light ). 4. Press the MENU/OK key and memorize the set value. 5. Change the c ontras t and brightnes s wit h the remote control up & down from low–light to high–light and check that the tracking of the white balanc e is good.

Ad just ment Remote 5.BRIGHT 1. Receive any broadc ast. of control unit 2. Select 2.V/C f rom the SERVICE MENU. SUB BRIGHT 3. Select 5.BRIGHT with the function UP/DOWN key. 4. Set the initial setting value with the function LEFT/RIGHT key. 5. If the brightness is not the best with the initial setting value, make fine adjustment until you get the best brightness. 6. Press the MENU/OK key and memorize the set value.

Ad just ment Remote 6.CONTRAST 1. Receive any broadc ast. Of SUB control unit 2. Select 2.V/C f rom the SERVICE MENU. CONTRAST. 3. Select 6.CONTRAST with the function UP/DOWN key. 4. Set the initial setting value wit h the function LEFT/RIGHT key. 5. If the contrast is not the best with the initial setting value, make fine adjustment until you get the best contrast. 6. Press the MENU/OK key and memorize the set value.

No. 52012 23 HV-29LPZ

Measuring Item instrument Test point Adjustment part Description

Ad just ment Remote 7.COLOUR [Method of adjustment without measuring instrument] of SUB control unit (PAL/SECAM/NT SC) Ⅰ COLOUR PAL COLOUR (PAL CO LOUR) 1. Receive PA L broadcast. 2. Select 2.V/C f rom the SERVICE MENU. 3. Select 7.COLOUR with the function UP/DOWN key. 4. Set the initial setting value for PAL COLOUR with the function LEFT/RIGHT key. 5. If the colour is not the best with the initial set value, mak e fine adjustment until you get the best colour. 6. Press the MENU/OK key and memorize the set value.

SECAM COLOUR (SECAM COLO UR) 1. Receive a SECAM broadc ast. 2. Make fine adjustment of SECA M COLOUR in the same manner as for above.

NTSC COLOUR (NTSC 3.58 COLOUR) 1. Input a NTSC 3.58MHz COMPOSITE VIDEO signal from the EXT t erminal. SERVICE MENU KEY 2. Make similar f ine adjust ment of NTSC 3.58 CO LOUR in t he same manner as f or above.

(NTSC 4.43 COLOUR) ZOOM SERVICE (ASPECT) MENU/ 1. Receive a NTSC 4.43MHz COMPOSITE VIDEO signal from key &SYSTEM the EXT terminal. CONSTANT key 2. Make similar fine adjustment of 4. 43 CO LOUR in the same SETTING ITEM manner as for above. SELECT key (Numbers key)

PICTURE CONTENTS key

PIP key

FUNCTION key (UP/DOWN & LEFT/RIGHT key)

MENU/OK key MEMORY (STORE) key

24 No. 52012 HV-29LPZ

Measuring Item Test point Adjustment part Description instrument

Ad just ment Signal TP-47B 7.COLOUR [Method of adjustment using measuring instrument] of SUB generator TP-E(#) (PAL/SECAM/NT SC) Ⅱ COLOUR [CRT PAL COLOUR (PAL CO LOUR) Oscilloscope SOCKET 1. Receive a PAL full f ield colour bar signal(75% white). PWB ] Remote 2. Select 2.V/C f rom the SERVICE MENU. 3. Select 7.COLOUR with the function UP/DOWN key. control unit 4. Set the init ial setting value of PAL CO LOUR wit h the function LEFT/RIGHT key. 5. Connect the osc illosc ope between TP -47B and TP-E 6. Adjust P AL COLO UR and bring t he value of (A) in the illustration to +5V (volt age dif ference between whit e (w) and cyan (Cy)). 7. Press the MENU/OK key and memorize the setting value.

SECAM COLOUR (SECAM COLO UR) 1. Receive a SECAM full field c olour bar signal(75% white). 2. Select 2.V/C f rom the SERVICE MENU. 3. Select 7.COLOUR with the function UP/DOWN key. 4. Set the initial setting value of SECAM COLOUR with the function LEFT/RIGHT key. 5. Adjust SECA M COLOUR and bring the value of (A) of the illustration to +5V(W ～Cy). (-) 6. Press the MENU/OK key and memorize the setting value. (A) 0 WCyMgB (+) NTSC COLOUR (NTSC 3.58 COLOUR) 1. Input a NTSC 3.58MHz COMPOSITE VIDEO signal (full field colour bar with 75% white) from the EXT terminal. 2. Select 2.V/C f rom the SERVICE MENU. 3. Select 7.COLOUR with the function UP/DOWN key. 4. Set the init ial setting value of NTS C 3.58 CO LOUR with the function LEFT/RIGHT key. 5. Adjust NTSC 3.58 COLO UR and bring the value of (A) of the illustration to +12V(W～Cy). 6. Press the MENU/OK key and memorize the setting value.

(NTSC 4.43 COLOUR) 1. Input a NTSC 4.43MHz CO MPO SITE V IDEO signal (f ull field colour bar with 75% white) from the EXT terminal. 2. Select 2.V/C f rom the SERVICE MENU. 3. Select 7.COLOUR with the function UP/DOWN key. 4. Set the init ial setting value of NTS C 4. 43 COLOUR wit h t he function LEFT/RIGHT key. 5. Adjust NTS C 4.43 COLO UR and bring the value of (A) of the illustration to +12V(W～Cy). 6. Press the MENU/OK key and memorize the setting value.

No. 52012 25 HV-29LPZ

Measuring Item Test point Adjustment part Description instrument Ad just ment Remote 8.TINT [Method of adjustment without measuring instrument] of control unit NTSC 3.58 TINT (NTSC 3.58 TINT) SUB TINT 1. Input a NTSC 3.58MHz COMPOSI TE V IDE O signal (full f ield colour bar with 75% white) from the EXT terminal. 2. Select 2.V/C f rom the SERVICE MENU. 3. Select 8.TINT with t he function UP/ DOWN key. 4. Set the initial setting value of NTSC 3.58 TINT with the function LEFT/RIGHT key. 5. If you cannot get the best TINT with the init ial set ting value, make fine adjustment until you get t he bes t TINT. 6. Press the MENU/OK key and memorize the set value.

NTSC 4.43 TINT (NTSC 4.43 TINT) 1. When NTSC 3.58 is s et, NTSC 4.43 will be automatically set at the respective values.

Ad just ment Signal TP-47B 8.TINT [Method of adjustment using measuring instrument] # of generator TP-E( ) NTSC 3.58 TINT (NTSC 3.58 TINT) SUB TINTⅡ [CRT 1. Input a NTSC 3.58MHz COMPOSI TE V IDE O signal (f ull field Oscilloscope SOCKET colour bar with 75% white) from the EXT terminal. PWB] Remote 2. Select 2.V/C f rom the SERVICE MENU. control unit 3. Select 8.TINT with t he function UP/ DOWN key. 4. Set the initial setting value of NTSC 3.58 TINT with the function LEFT/RIGHT key. 5. Connect the osc illosc ope between TP -47B and TP-E 6. Adjust NTSC 3. 58 TINT to bring t he value of (B) in the illustration to -9V (voltage difference between white (W) and magent a(Mg)). 7. Press the MENU/OK key and memorize the setting value

(B) (-)

0 NTSC 4.43 TINT (NTSC 4.43 TINT) WCyMgB 1. When NTSC 3.58 is set, NTSC 4.43 will be automatically set at (+) the respective values.

Ad just ment Signal 10. VCO [For main picture] of VCO generator 1. Input a P AL full f ield c olour bar signal (75% white) from EX T for colour terminal. decoder Remote 2. Select 2. V/C from the SERVICE MENU. control unit 3. Then Select 10. VCO adjustment with the function UP/DOW N key. 4. Press the MENU/OK key. * When the MENU/OK key is pressed, VCO f or c olour decoder will be automatically set at the respective values.

[For PIP] 5. Select 7.PIP from the SERVICE MENU. 6. Then select 1.PIP VCO ADJ with the function UP/DOW N k ey. * When the MENU/OK key is pressed, V CO for colour decoder will be automatically set at the respective values.

26 No. 52012 HV-29LPZ

DEF. CIRCUIT ADJUSTMENT There are 3 aspect mod es ( ①REGULAR, ②ZOOM & ③16 : 9) of the adjustment ( 1 ) 100Hz i mode & ( 2 ) 60Hz p mode ･･････ depending upon the kind of signals ( vertical frequency 100Hzi / 60HZp).

" When the 100Hz REGULAR mode has been established, the setting of other modes will be done automatically. However, if the picture quality has not been optimized, adjust each mode again, respectively. " The adjustment using the remote control unit is made on the basis of the initial setting values. " The setting values which adjust the screen to the optimum condition can be different from the initial setting values.

Initial setting value Setting item REGULAR ZOOM 16 : 9 100Hz i 60Hz p 100Hz i 60Hz p 100Hz i 60Hz p

1. V- SHIFT 0 +7 0 0 0 0

2. V-SIZE +5 +1 0 0 -15 0

3. H-CENT -21 0 0 0 0 0

4. H-S IZE -10 -6 0 0 -3 +3

5. TRAPE Z -22 +14 0 0 0 0

6. EW-PIN -46 -1 0 0 0 0

7. COR-PIN 0 +16 0 0 0 0

8. COR-UP +25 +6 0 0 0 0

9. COR-LO +18 -8 0 0 0 0

10.ANGLE00000 0

11.BOW00000 0

12. V-S.CR +7 0 0 0 0 0

13. V-LIN -7 +5 0 0 0 0

14. V.B LK -UP +80 0 0 0 -82 -6

FIXED VALUE : Do not move.

No. 52012 27 HV-29LPZ

Measuring Item Test point Adjustment part Description instrument

Ad just ment Signal 1. V- SHI FT [REGULAR mode] of generator 1. Receive a circle patt ern signal of vert ic al frequency 50Hz. V-SHIFT 2. Select 4.DEF f rom t he SERVI CE MENU. Remote 3. Select 1.V-SHIFT with the function UP/DOWN key. control unit 4. Adjust V-SHIFT to make A = B. 5. Check the adjustment value above in ot her zoom mode. If it is a wrong adjustment, re-adjust in ZOOM mode and adjust by 1. V-SHIFT and 13.V-LI N. 6. Press the MENU/OK key and memorize the set value. A

Ad just ment 2.V-SI ZE 7. Receive a cross-hatch signal. of V-SIZE 8. Select 2.V-SIZE and set the initial setting value. 9. Adjust V-SI ZE and make sure that t he vert ic al screen siz e of Screen size the pict ure size is in t he bellow t able. 10. Press the MENU/OK key and memorize the set value. 11. Input a NTSC VIDEO signal (60Hz) from the E XT terminal, and make sure that the vertical screen size is in the below table. Screen Picture 12. Press the MENU/OK key and memorize the set value. size size 100%

Picture size 100%

AS PE CT ZOOM SCREEN REGULAR ZOOM POSITION 16 : 9

TOP 93% (FI XED) (FI XED)

BOT TOM 93% (FI XED) (FI XED) [ SCREEN SIZE ]

28 No. 52012 HV-29LPZ

Measuring Item Test point Adjustment part Description instrument

Adjustment of Signal 3 .H- CE NT. 13. Receive a c ircle pat tern s ignal. H. CENTER generator 14 . Se le ct 3 .H- CE NT and set th e init ia l sett ing value . 15 . Ad ju st H- CE NT to ma ke C=D. Remote 16. Press the MENU/OK key and memorize the set value. control unit

Ad just ment 4.H-SIZE 17. Receive a cross-hatch signal. of H.SIZE 18. Select 4.H-SIZE and set the initial sett ing value. 19. Adjust H-S IZE and make sure that the horiz ont al sc reen size of the pict ure size is in the bellow t able. 20. Press the MENU/OK key and memorize the set value. 21. Input a NTSC VIDEO signal (60Hz) from the EXT terminal, and make sure t hat the horizont al screen size is in t he below table. 22. Press the MENU/OK key and memorize the set value.

AS PE CT ZOOM MODE REGULAR ZOOM 16 : 9 ADJ. ITEM

H- S IZE 92% (FI XED) (FI XED)

Ad just ment 6.EW-PIN 23. Select 6.EW-PIN and set the initial s etting value of EW-PIN 24. Adjust EW-PIN and mak e the 2nd.vert ic al lines at the lef t and right edges of the screen straight. Also make sure that the 3rd vertical lines are straight. Straight 25. Press the MENU/OK key and memorize the set value.

No. 52012 29 HV-29LPZ

Measuring Item Test point Adjustment part Description instrument

Ad just ment Signal 5. TRAPEZ 26. Receive a cross-hatch signal. of TRAPEZ generator 27. Select 5.TRAPEZ with the function UP/DOWN key. Remote 28. Set the initial setting value of TRAPEZ with the function control unit LEFT/RIGHT key. 29. Adjust TRAP EZ and bring the VERTICAL lines at the right and Parallel left edges of the screen parallel. 30. Press the MENU/OK key and memorize the set value.

Adjustment of Signal 7.COR-PIN 31. Select 9.COR-LO with the FUNCTION UP / DOWN key. generator CORNER 8.COR-UP 32. Set the init ial setting value of 9.COR-LO with the function UP/ LOW Remote LEFT/RIGHT key. 9.COR-LO control unit 33. Adjust COR-LO, and bring t he straight line at the low corner. 34. Select 8.COR-UP with the function UP / DOWN key. Straight 35. Set the initial sett ing value of 8.COR-UP with the function LEFT/RIGHT key. 36. Adjust COR-UP , and bring the st raight line at the upper corner. 37. If the ext reme upper & lower corners and a litt le pin or barrel, chose 7.COR-P IN and adjust. A nd adjust t o get the straight. 38. Press the MENU/OK key and store the set value.

Adjustment of Signal 10.ANG LE " In c ase where t here is a parallelogrammical dist ortion of ANGLE generator images on the screen. (Fig. A) Remote 39. Select 10.ANGLE with the FUNCTION UP / DOWN key. control unit 40. Adjust ANG LE, and bring t he VERTICAL lines straight. 41. Press the ME NU key and memoriz e the s et value.

Fig. A

30 No. 52012 HV-29LPZ

Measuring Item Test point Adjustment part Description instrument

Ad just ment Signal 11.BOW " In cas e where there is a bow-shaped distortion of images on of BOW generator the screen. (Fig.B) Remote control unit 42. Select 11.BOW with the function UP/DOWN key. 43. Adjust BO W, and bring t he VERTICAL lines straight. 44. Press the MENU/OK key and memorize the set value.

Fig. B

Ad just ment 12.V-S.CR " When the vert ic al linearity has been det eriorated remarkably, of V-S.CR & 13.V.LIN. perf orm t he following st eps. V.LI N. 45. Receive a cross-hatch signal. 46. Select 13. V.LIN with the function UP / DOWN key. 47. Set the initial setting value of 13. V.LIN with the function TOP LEFT/RIGHT key. 48. Select 12. V-S.CR. with the function UP / DOWN key. 49. Set the initial setting value of 12. V-S.CR. with the function LEFT/RIGHT key. CENTER 50. Adjust 13. V.LIN and 12. V-S.CR. so t hat the spaces of each line on TO P, CE NTE R, and B OTTOM bec ome unif orm.

NOTE : Do not adjust “ZOOM” & “16 : 9” mode. BOT TOM

* At first the adjustment in 50Hz REGULAR mode should be done, then the data for the other ZOOM mode is corrected in the respective value at the same t ime. And c onf irm t he deflection adjustment initial setting value in 60Hz (NTSC EXT mode) REGULAR mode. If the adjustment in 50Hz REGULAR mode has been done and stored, the data for the other ZOOM modes is c orrec ted in the same value at the same time. * Only the data for the other ZOOM mode in 60Hz is corrected for it self.

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AUDIO CIRCUIT ADJUSTMENT

" Do not touch 3. AUDIO adjustment of the SERVICE MENU as it requires no adjustment. If values had changed f or the some reas on, set the initial values in t he f ollowing table.

3. AUDIO(Do not adjust)

Setting item Variable range fixed value

1. ERR LI MIT 00H～FFH 10H

2. A2 ID THR 00H～FFH 14H

3. QUASI 00H～FFH ――――

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PURITY, CONVERGENCE ADJUSTMENT

PURITY ADJUSTMENT

1. Demagnetize CRT wit h t he demagnetizer. WEDGE DYNAMIC CONVERGENCE ADJUSTMENT 2. Loosen the retainer screw of the deflec tion yoke.

PURITY MAGNET(P)

3. Remove the wedges. CRT 4. Input a green rast er signal from the signal generat or, and turn 46 the screen t o green raster. CRT SO CKET PWB

P / C MAGNETS 5. Move the deflection yoke backward. DEF. YOKE

6. Bring t he long lug of the purity magnets on the short lug and P/C MAGNETS posit ion t hem horizontally. (Fig. 2) P : PURITY MAGNET 4 : 4 P OLES (convergence magnets) 6 : 6 P OLES (convergence magnets) 7. Adjust t he gap between t wo lugs so that the G RE EN RAS TER will come into the center of the screen. (Fig.3) Fig.1

8. Move the deflect ion yoke forward, and fix the pos ition of the deflection yoke so that the whole screen will become green.

PURITY MAGNETS 9. Ins ert the wedge t o the t op side of the def lect ion yoke so that it will not move.

10. Input a cross hat ch signal.

Short l ug 11. Verif y that the screen is horizontal. Long ugl

Bring the long lug over the short lug 12. Input red and blue rast er signals, and make sure that purity is and position them horizontally. properly adjusted. Fig.2

(FRONT VIEW) GREEN RASTER

CENTER

Fig.3

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STATIC CONVERGENCE ADJUSTMENT (FR ON T V IEW ) 1. Input a cross hat ch signal.

2. Using 4-pole convergence magnets , overlap t he red and blue lines in the center of the screen (Fig. 1) and turn them to magent a (red/ blue).

3. Using 6-pole convergence magnets, overlap the magenta (red/blue) and green lines in the cent er of the screen and turn them to white. Fig. 1

(FR ON T V IEW ) 4. Repeat 2 and 3 above, and make best c onvergence. TO P

● After adjustment, fix the wedge at the original position. Fast en t he retainer screw of the def lection yoke. Fix the 6 magnets with glue.

BO TTO M Fig. 2 DYNAMIC (periphery) CONVERGENCE ADJUSTMENT (FR ON T V IEW ) After adjusting purity & static convergence. YH RED GREEN BLUE

1. Move the def lection yoke up and down to adjust t he pin cushion dist ort ion in the screen t op and bott om. (See Fig. 2) BLUE RED

2. Move the deflection yoke left to right to ov erlap the lines in the GREEN GREEN periphery, and matc h the Yv(VR1).(As s hown in Fig. 4) RED BLUE

3. Using the V R1 on t he def lection yok e, match t he YH (CRO SS). (See Fig. 3 and 6) GREENBLUE RED 4. Using the V R2 on t he def lection yok e, match t he YH (BOW). YH (See Fig. 3 and 6) 5. Repeat the st eps 1 and 4 and obtain an optimum convergenc e. Fig. 3 (FR ON T V IEW ) 6. Dif ferential(XV ) coil ADJUSTME NT. GREEN GREEN BLUE RED In case where the horizont al lines of red and blue around t he RED BLUE YV RED center of both sides of the picture as shown in Fig. 5, adjust the GREEN BLUE XV difference by using the diff erent ial coil(XV coil) on the top of the

deflection yoke (Fig. 6) so as to minimize the X V dif ference.

YV BLUE GREEN CRT RED Fig. 4 (FR ON T V IEW ) YHC YV (VR2) (VR1) FRONT BLUE(RED)

XV COIL Xv GREEN RED (BLUE)

Fig.6 Fig. 5

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REPLACEMENT OF CHIP COMPONENT ! CAUTIONS 1. Avoid heating for more than 3 seconds. 2. Do not rub t he elect rodes and t he resist parts of the patt ern. 3. When removing a c hip part, melt the s older adequately. 4. Do not reuse a chip part after removing it .

! SOLDERING IRON 1. Use a high ins ulation s oldering iron with a t hin pointed end of it . 2. A 30w s oldering iron is rec ommended for easily removing parts.

! REPLACEMENT STEPS 1. How to remove Chip parts 2. How to install Chip parts # Resi stors, capacitors, etc # Resi stors, capacitors, etc (1) As shown in the figure, push the part with tweezers and (1) Apply solder to the pattern as indic ated in the figure. alternat ely melt the solder at each end.

(2) Grasp the chip part with tweezers and plac e it on the solder. (2) Shif t with tweezers and remove the chip part. Then heat and melt the solder at both ends of t he chip part.

# Transistors, diodes, variabl e r esistor s, etc # Transistors, diodes, variabl e r esistor s, etc (1) Apply ext ra solder to each lead. (1) Apply solder to the pattern as indic ated in the figure. (2) Grasp the chip part wit h t weezers and place it on the solder. (3) First solder lead A as indicated in the figure.

SOLDE R SOLDE R

A (2) As shown in the figure, push the part with tweezers and B alternat ely melt the solder at each lead. Shift and remove the chip part. C (4) Then solder leads B and C.

C Note : After removing the part, remove remaining solder from the pattern.

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36 No.52012