1780R-SERIES - Specificanon

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1780R-SERI ES VIDEO MEASUREMENT SET

Please Check for CHANGE INFORMA TION at the Rear of This Manual

First Printing DEC 1989 Revised APR 1990 1780R-SERIES - SPECIFICAnON

Table 2-1 Input/Output

Perl. Characteristic Perlormance Requirement Supplemental Information Check Step

Vertical Ranges Volts Full Scale Accuracy 1.0 1.0V ±0.OO7V P-to-p Amplitude for Full Gratlcule 1.0 3 volt/140 IRE.

Var :$ 0.5: 1 to ~ 1.5: 1 (0.67 V to 2.0 V 4 input signal can be made full scale).

Input Gain Ratios A to B 1 to 1 ±0.002 (0.998 - 9 1.002).

Auxiliary Video Input 1.5 dB ±0.3 dB. 9 to A Input

Input A to Auxiliary 1 to 1 ±0.005 (0.995 - 9 Video Output 1.005).

Input A to Picture 1 to , ±0.02 (0.98 - 1.02). 9 MOnitor Output

Vertical Magnified X5 Accuracy 0.2 V ±0.007 V.

P-to-p Amplitude for 0.2 volt/28 IRE. Full Graticule

Maximum Input Signal AC Coupled All Inputs 2.0 V, p-to-P. 10%-90% APL. Aux Video Out and Pix Man (terminated). 1.0 V p-to-p. 10%-90% APl. DC Coupled All Inputs ±'.5 V (de + peak ac).

Max volts from loop- 2 V rms at mains frequency. Rejection ratio of common-to-chasSls Thru common in floating ground mode. ~ 34 dB at terminal to chassis mains frequency.

Max DC Output Voltage Aux Video Out ±0.5 V into 75Q. Pix Man Out ±0.5 V into 75Q. 6 Line strobe but no Input signal.

Remote Control Interlace Standard RS422, RS232 (subset of all controls).

Control Enable Ground closures and presets.

2-2 1780R·SERIES - SPECIFICAnON

Table 2-2 Waveform Monitor Vertical System

Perf. Characteristic Performance Requirement Supplemental Information Check Step

Return Loss CH A, B" B2 , or B3 >_40 dB dc to 5 MHz. (Terminated in 75Q.) 57

Aux Video In, Aux >34 dB de to 5 MHz. Instrument On only. 57 Video Out. & Pix Mon Out

Ext. Sync Input >46 dB to 5 MHz. 57

Loop-Through Isolation > 80 dB at Fsc, between channels and each channel and EXT REF. Measured externally.

Crosstalk > 70 dB isolation between channels. Measured at Fsc between channels and each channel and EXT REF.

Frequency Response Flat 50 kHz - 5 MHz ± 1%. All inputs, 1 V Full Scale, Var. Gain 10-14 oH. Adjusted for min. lum/chro gain error. Typically <0.5%.

±2%. Aux In, and Aux Out. 14-15

Lum/Chroma Gain ±0.5%. X5 Gain with Modulated Sin2 Pulse. 18

5 MHz - 10 MHz ± 1%. CH A, 1 V Full Scale, Var. Gain oH. 10

±2%. Ch B1, Ch B2. Ch 83, Aux In, and 11-15 Aux Out.

10 MHz - 15 MHz +2% -5%. All Inputs. 1 V Full Scale, Var. Gain 10-14 oH.

15 MHz - 20 MHz +2% -15%. All Inputs, 1 V Full Scale, Var. Gain oH. -3 dB at > 20 MHz.

Voltage Cursor Accuracy ±0.2%. 5 Resolution 1 mV.

Cal Amplitude Accuracy 1.00 V ±0.2%. NTSC - 0.714 V ± 0.5%. 2 PAL - 0.700 V ± 0.5%. Resolution 1 mV at 1.00 V.

2-3 1780R-SERIES - SPECIFICAnON

Table 2-2 (Continued)

Pert. Characteristic Performance Requirement Supplemental Information Check Step

DC Restorer Clamp POint Backporch or Sync Tip. 20, 23 (All Clamps controlled together.) Mains Hum Atten. Slow Clamp ~0.9 dB. Attenuation ~ 10% . 21 Fast Clamp ~26 dB.

Shift caused by ~ 7 mV or 1 IRE (NTSC). 23 presence or absense of burst

Lum/Chroma Gain Ratio NTSC (50 kHz - 3.58 1: 1 ± 1%. Adjusted to minimize luminance to 18 MHz) chromlnance gain error at 1 V Full PAL (50 kHz-4.43 1:1 ±1%. Scale. typically ~ 0.5%. MHz)

DC Channel Matching Typically within 10 mV. 7

Common Mode 1 V p-to-p common mode signal. Rejection A-B1 B1-B2 / B1-B3 60 Hz ~46 dB ~46 dB 25 15 kHz (Lum) ~46 dB ~46 dB 1 MHz ~40 dB ~34 dB 3.58 or 4.43 MHz ~34 dB ~34 dB A- B1 typically >46 dB to 6.0 MHz (Chroma) and >40 dB to 10.0 MHz. Filters Luminance <3 dB down at 1 MHz. ~40 dB down at 3.58 or 4.43 MHz.

Low Pass ~ 14 dB down at 500 kHz. Typically -3 dB at 300 kHz.

Chromlnance 3.58 MHz ± 1% of flat at 3.58 MHz. 19 3 dB points: Lower: 2.83 ± 0.15 MHz. Upper: 4.33 ± 0.15 MHz.

4.43 MHz ± 1% of flat at 4.43 MHz. 3 dB pOints: Lower: 3.68 ± 0.15 MHz. Upper: 5.18 ± O. 15 MHz.

2-4 1780R-SERIES - SPECIFICATION

Table 2-2 (Continued)

Perf. Characteristic Performance Requirement Supplemental Information Check Step

Diff Steps (Differentiated Steps > 40 dB at 3.58 MHz 5 step, 20 IRE staircase within 2% of Attenuation) (4.43 MHz PAL). flat display. 26

Vertical Gain increase approx. 5X to compare staircase risers. Noise Measurements Accuracy To 56 dB within 1 dB; 60 dB Relative to 700 mV rms, Var Gain set 8 within 2 dB. to maximum.

Offset Accuracy To 56 dB within 0.5 dB; 60 dB within 1 dB.

Non-Linear Waveform Distortion Differential Gam Aux Video Out :s 0.25%, 10% - 90% APL. Waveform modes 27 Pix Mon Out :s 0.25%" 10% - 90% APl. i Differential Phase

Aux Video Out 0.25 Q, 10% - 90% APl. I :s l Pix Man Out :s 0.25°. 10% - 90% APl. .I Linear Waveform I Distortion Pulse Overshoot & :s 1% of applied pulse Typically < 0.5% on T Pulse. and I Ringing amplitude. < 1.0% on T/2 Pulse.

Pulse and Bar :s 1% of applied pulse Typically < 0.5% on T Pulse. and 28 amplitude. < 1.0% on T/2 Pulse.

25 j.1.S Bar Tilt :s 1% of applied bar I amplitude. ! i I Field Square Wave :s 1% of applied square wave Typically < 0.5%. I Tilt amplitude. I f

2T Sin2 Pulse-to-Bar 1:1 ± 1%. Ratio

Vertical Overscan ,V p-to-p PAL or < 7 mV variation In base line 1.0, or X5. Var. Gam in detent. NTSC Modulated Sin2 of chroma when positioned 22 composite video anywhere between sync tip Typically <0.5%. signal and 100% white.

2-5 1780R·SERIES - SPECIFICATION

Table 2-2 (Continued)

Perf. Characteristic Performance Requirement Supplemental Information Check Step

Diff Steps (DIHerentiated Steps > 40 dB at 3.58 MHz 5 step, 20 IRE staircase within 2% of Attenuation) (4.43 MHz PAL). flat display. 26

Vertical Gain increase approx. 5X to compare staircase risers. Noise Measurements Accuracy To 56 dB within 1 dB; 60 dB Relative to 700 mV rms, Var Gain set 8 within 2 dB. to maximum.

OHset Accuracy To 56 dB within 0.5 dB; 60 dB within 1 dB.

Non-Linear Waveform Distortion Differential Gam Aux Video Out ~ 0.25%, 10% - 90% APL. Waveform modes 27 Pix Man Out ~ 0.25%, 10% - 90% APl. I Differential Phase Aux Video Out ~0.25°, I 10% - 90% APl. l 0 Pix Man Out ~ 0.25 , 10% - 90% APL. I• Linear Waveform I Distortion Pulse Overshoot & ~ 1% of applied pulse Typically < 0.5% on T Pulse. and I Ringing amplitude. < 1.0% on T/2 Pulse.

Pulse and Bar ~ 1% of applied pulse Typically < 0.5% on T Pulse, and 28 amplitude. < 1.0% on T/2 Pulse. 25 J.ls Bar Tilt ~ 1% of applied bar I amplitude. ,! I Field Square Wave ~ 1% of applied square wave Typically < 0.5%. I Tilt amplitude. I

2T Sin2 Pulse-to-Bar 1: 1 ± 1%. Ratio

Vertical Overscan 1 V p-to-p PAL or < 7 mV variation in base line 1.0, or X5, Var. Gain in detent. NTSC Modulated Sin 2 of chroma when posItioned 22 composite video anywhere between sync tip Typically <0.5%. signal and 100% white.

2-5 1780R-SERIES - SPECIFICAnON

Table 2-4 Waveform Monitor Horizontal Deflection System

Perf. Characteristic Performance Requirement Supplemental Information Check Step

Sweep Rates & Timing Accuracy 1H (5 ps/Div.) ±2%. Center 10 divisions. 2H (10 1-'s/Div.) ±2%. Center 10 divisions. 3H (15 ps/Dlv.) ±2%. Center 10 divisions. 1-Field Sweep Displays 1 full field including field rate sync.

2-Field Sweep Displays 2 full fields, and the field rate 33 sync between them. First sweep is selectable between the even or odd field.

3-Field Sweep Displays 3 full fields, and the 2-field rate sync intervals between them (3/4 of the color frame). First sweep IS selectable between the even or odd field, third field polarity is the same as the first field's.

Sweep Linearity 1H (5 ps/Div.) ± 1%. 2H (10 pslDiv.) ± 1%. 3H (15 ps/Div.) ± 1%. 1-Field Sweep ± 0.5 division. 33 2-Field Sweep ± 0.5 division. 3-Field Sweep ± 0.5 division. Slow Sweep ± 5% of full screen over the length of the sweep.

Magnified Sweep Accuracy Applies to the center 10 divisions of X5 (1 ps/Div.) ± 1%. unmagnified sweep. Excludes the X10 (0.5 ps/Div.) ±2%. first 2 divisions of the magnified X20 (0.25 pslDiv.) ±3%. display. 33 X25 (0.2 psiDiv,) ±3%. X50 (0.1 ps/Div.) ±3%. X100 (50 nslDiv.) ±5%.

Magnified Sweep Linearity Applies to the center 10 divisions of X5 (1 pslDiv.) ± 1 mmor diVision (::s 2%). unmagnified sweep. Excludes the X10 (0.5 ps/Div.) ± 1 minor division (::s 2%). first 2 divisions of the magnified 33 X20 (0.25 ps/Div.) ±1 minor division (::S 2%). display. X25 (0.2 ps/Div.) ± 1 mmor division (::s 2%). X50 (0.1 ps/Div.) ±1 minor division (::S 2%). X100 (50 ns/Div.) ± 1 minor division (::s 2%).

2-7 1780R·SERIES - SPEClFlCAnON

Table 2-4 (Continued)

Perf. Characteristic Performance Requirement Supplemental Information Check Step

Variable Sweep Range > ±20%. Expands sweep around center of 34 sweep.

Slow Sweep Duration 4 to 12 seconds. Front panel variable 44 control.

Timing Cursor Accuracy Within 5 ns. any delay withIn 33 1 line (64 }-lsI.

Line Select

Range I Full Field. Waveform monitor and vectorscope may select dlHerent lines. CRT 35 Field Selection 1 of 4 for NTSC or 1 of 8 for alphanumeric Identification. PAL. Even or Odd and All Fields.

RGBIYRGB Staircase Input A + 10 V input will result in a Ground to + 10 V. + 10 V corres· 36 Amplitude horizontal display of 9 divi ponds to left side of crt. sions ± 1.4 major divisions.

Staircase Operating DC Signal levels plus peak Signal ac, not to exceed - 12 to + 12 V.

Max AC Signal Volts 12 V peak-to-peak. Field or line rate sweeps.

Sweep Length RGB 2 Fld = 27 - 33% of normal. 1 Line = 27 - 33% of normal. 2 Line = 27 - 33% of normal.

YRGB 2 Fld = 20 - 25% at normal. 1 Line = 20 - 25% of normal. 2 Line = 20 - 25% of normal. 36 Sweep Repetition Field or line rate of displayed Requires 1H or 1Fld sweep selection. Rate video or external sync signal as selected by front-panel HORIZONTAL controls.

External Horiz. Input Used for ICPM measurements. Sensitivity Direct coupled 0 - 5 V. Sawtooth 37 input of up to 5 V is nominally a 10 division horizontal sweep. Input Impedance = 10 kQ.

2-8 1780R-SERIES - SPECIFICATION

Table 2-5 Waveform Monitor dG and dP Display

Perf. Characteristic Performance Requirement Supplemental Information Check Step

Differential Gain Deflection Factor 5% dG deflects the trace 50 Waveform gain X1, Var. Gain off. 38 IRE (NTSC) or 500 mV (PAL) Vector gain adjusted to place chroma ±5%. at compass rose.

Residual dG ::s 0.2°;0. last 90% of trace. 38 (10- 90% APL)

Calibrated dG CRT readout. 38 Resolution 0.1%. Accuracy 0.1% ± 10% of reading. Range ±5%.

Differential Phase Deflection Factor 50 dP deflects the trace 50 Waveform gain X1. Var. Gain off. 39 I IRE (NTSC) or 500 mV (PAL) Vector gain adjusted to place chroma ±5%. at compass rose. ,

Residual dP ::s 0.1 0, last 90% of trace. 39 (10- 90% APL)

Calibrated dP CRT readout. Resolution 30 0 Accuracy ± 0.1 0 over any 10 incre 0 ment. ±0.1 0 over full 360 , Ext. Ref. ±0.2 0 burst lock.

0 Range 360 .

Recursive Filter Noise Reduction "'" 15 dB slgnal-to-nolse reduction With 40 filter selected. Assumes white noise source.

Cross-Luminance "'" 30 dB with filter selected. 0 dB In Rejection dual dP/dG mode.

Unit Sample Settles to Within 1 dB in < 50 lines Response With a step in APL. Settles to Within 1 dB in < 50 frames in line select.

Chrominance 500 kHz ± 100 kHz baseband. Bandwidth

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Table 2-6 Synchronization

Perf. Characteristic Performance Requirement Supplemental Information Check Step

Sync Input Internal Composite video applied to Inputs A. 41 Ref. Sync 0.2 to 2.0 V p-to-p composite 8" 8 2• or 8 3 or probe. Separator video.

Int. Sync Separator 0.5 to 2.0 V p-to-p composite 41 video. External Black Burst -14 dB to +6 dB. 81ack Burst signal of 0.2 to 5 times 42 amplitude applied to EXT SYNC input.

Composite Sync 0.2 to 8.0 V peak-to-peak. Composite sync applied to EXT SYNC Input locks waveform monitor; 42 vectorscope also requires CW signal.

SCH Modes 286 mV (300 mV PAL) Sync Composite Video or Black Burst. and Burst ±3 dB. 55

Direct Sync Hartz. Freq. Range 15.75 kHz ± 1 kHz. Frequencies much below 15.75 kHz 55 will not permit a normal TV display.

Sync Jitter :::; 12 ns with respect to Input sync. 55 Comp sync or Video Variable APL (10- :::; 20 ns; with the addition of 36 dB 43 90 0,'0 ) white noise S 90 ns.

Noise Immunity < 250 ns Jitter. 1 V composite video with - 26 dB white noise.

2-10 1780R-SERIES - SPECIFICAnON

Table 2-6 (continued)

Perf Characteristic Performance Requirement Supplemental Information Check Step

AFC Sync Horiz. Freq. Range , 5.75 kHz ±200 Hz. Lock-In Time < 1 second. Sync Jitter Camp sync or ~ 10 ns: with the additIOn of 36 dB video while nOise ~ 12 ns. Variable APL (10 90%)

Jitter with respect to ~ 30 ns. Doubles with each 6 dB Increase In 43 white noise white noise.

NOise Immunity < 90 ns Jitter, 1 V composite video with - 26 dB while nOise.

Jitter from missing < 15 ns per missing sync pulse. line sync pulses Maximum of 10 consecutive line sync pulses.

Slow Sweep Triggering Signal APL change from ~ 10% to Front panel selectable for eIther + or 44 90%. - level change.

Sensitivity 0.4 V to 2.0 V peak-to-peak composite video with APL change. Free runs at rates less than 0.2 Hz or Rate ~0.2 Hz. with no tnggering signal.

Remote Sync Amplitude 2.0 to 5.0 V square wave, or Input enabled through rear-panel 45 4.0 V composite sync. REMOTE connector.

Input Impedance 1 MD.

Frequency 30/60 Hz (NTSC), 25/50 Hz (PAL) square wave will synchronize a 2-field sweep. Remote sync bypasses the sync stnpper and field 10 circuits.

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Table 2-7 Vectorscope Vector Display

Perf. Characteristic Performance Requirement Supplemental Information Check Step

Phase Control Digital Phase Shifter Phase Accuracy 0.1 ° . (External CW Signal.) 0.25 ° Burst 46 Lock.

Resolution 0.05° .

Chrominance Bandwidth FSC (Subcarner Frequency) 47 Upper -3 dB Point FSC + 500 kHz, ± 100 kHz. NTSC - 3.579545 MHz. Lower -3 dB Point Fsc - 500 kHz, ± 100 kHz. PAL - 4.43361875 MHz.

Chrominance Transient Modulated Sin2 pulse In R-Y mode. Response

Display Vector Phase ± 1.25°. Measured with color bar signal. 48 Accuracy ±2.5% (1.25 IRE). Vector Gam Accuracy Ouadrature Phasing ± 0.5°.

Subcarrier Regenerator Pull-In Range (NTSC) ±50 Hz of Fsc. PAL instruments are tested to 10Hz, 49 (PAL) ± 10 Hz of Fsc . but typically lock to within 50 Hz.

Pull-In Time Within 1 second, with subcarrier fre quency within 50 Hz (10Hz for PAL instruments) of Fsc Phase Shift with Sub carrier Frequency Change (NTSC) ± 0.5 ° from Fsc to (Fsc + 50 Hz). or FSC to (FSC - 50 Hz)

(PAL) ±0.5° from FSC to (FSC + 10 Hz), or FsC to (Fsc - 10Hz). 49 Phase Shift with Burst ±2° from nominal burst Internal or External burst reference. Amplitude Change amplitude to ±3 dB.

Phase Shift with Input CHA to CHB 1 or CHB1, CHB2, and Channel Change CH B3 to each other. With EXT REF selected.

Phase Control Range 360 0 continuous rotation.

2-12 1780R·SERIES - SPECIFICATION

Table 2-7 (continued)

Perf Characteristic Performance Requirement Supplemental Information Check Step

Vector Display Differential Phase :s 1o.

DiHerential Gain :s 1%. Measured with 140 IRE (1 V) linearity signal with 40 IRE (300 mV) of subcarrier.

Position Control Range 50 HOrizontal ~ 1/4" (6 mm) from center. Vertical ~ 1/4" (6 mm) from center.

Clamp Stability 1/64" (0.4 mm) or less. Center Spot movement with rotation 50 of PHASE control.

Variable GAIN Range + 14 dB to -6 dB of 75% Unterminated color bar signal can be 51 color bar preset gain. brought to appropriate targets. Burst from a triple terminated signal can be moved to the compass rose.

Max Gain >X5.

Variable GAIN Phase ± 1 0 as gain is varied from 52 Shift + 3 dB to -6 dB.

2-13 1780R-SERIES - SPEClFICAnON

Table 2-8 Vectorscope X-V Display

Perf Characteristic Performance Requirement Supplemental Information Check Step

Input DC coupled differential Inputs through rear-panel connector.

Input Amplitude 2 to 9 V peak-to-peak. Adjustable full scale deflection 0 dBm to + 12 dBm for 600n system. Factory set to 0 dBm.

Maximum Input Voltage :: 15 V combined peak signal and de.

Frequency Response dc to > 500 kHz. 3 dB pOint. 54

X and V Input Phase < a trace width of separation Single-ended. Phase matching may 53 Matching at 20 kHz. be Improved. above 20 kHz, by adjusting Vertical Deflechon Amplifier VHF Compensation.

Table 2-9 Vectorscope SCH Phase Display

Perf Characteristic Performance Requirement Supplemental Information Check Step

Accuracy Absolute ::!: 5° phase at 25°C. 55 Relative ::!: 2°.

Temperature Stability :: 0.1 a phase/aC.

Acquisition Time ~ 1 sec. 55

Display Phase Error ± 1.25 0 calibrated for zero display caused by crt Geometry phase error at zero SCH phase. Variations

Input Timing Stable display with any time rela- tionship between signals on CH A. CH B. and EXT.

Display Range 0 Ext Reference 360 . 55 0 0 lnt Reference :: 70 • Typically> 80 •

2-14 , 780R-SERIES - SPEClFICATION

Table 2-10 CRTs and High Voltage Supplies

Perf Characteristic Performance Requirement Supplemental Information Check Step

Waveform Monitor 80 X 100 mm. HOrizontal Scale 12.5 Viewing Area DiviSions. Vertical Scale 170 IRE (NTSC). 1.19 V (PAL).

Accelerating Potential Nominally 20 kV.

Orthogonality ± 1 0 56

Trace Rotation Range ~ ± 1 0 from horizontal. Typical adjustment range IS :::::80. 56

Vectorscope Viewing Area 80 X 100 mm.

Accelerating Potential Nominally 13.75 kV.

0 Orthogonality ± 1 • 56

Table 2-11 Power Requirements

Perf Characteristic Performance Requirement Supplemental Information Check Step

Mains Voltage Ranges Selected by rear-panel SWitch. 110 Vac 90 - 132 V. 1 220 Vac 200 - 250 V.

Mains Frequency 48 - 66 Hz. Range

Crest Factor ~ 1.3.

Power Consumption 110 Watts maximum.

2-15 1780R-SERIES - SPECIFICATION

Table 2-12 Environmental Summary

Characteristic Performance Requirement

Temperature Operating DOC to + 50°C. Non-Operating -55°C to + 75°C.

Altitude Operating To 15.000 feet (4.5 km) maximum. Non-Operating To 50.000 teet (15 km) maximum.

Vibration Operating 0.015 inch (0.38 mm I peak-to-peak 10-55 Hz. 75 mInutes total.

Shock Non-Operating 30 g acceleration 3 times each malar axis. 11 ms halfsme.

Bench Handling 4 Inch drop to table top on each of the four bottom corners.

Transportation Vibration Qualified under National Safe Transit Association (NSTA) Test Procedure 1A-B-1 .

Drop Test Qualified under NSTA Test Procedure 1A-B-2.

Humidity 90 to 95% Noncondensing

Table 2-13 Certifications

Characteristic Supplemental Information

Safety/EMI Designed to meet or exceed: Factory Mutual - 3820 CSA Bulletin 556B IEC 348 FCC EMI Compatibility (FCC Rules Part 15 Subpart J. Class A) VDE 0871.5 (Class B)

Table 2-14 Physical Characteristics

Characteristic Supplemental Information

Dimensions Height 5 1/4 inches (133.4 mml. Width 19 inches (483 mmi. Length 18 inches (460 mm).

Net Weight Approximately 25 Ibs (approximately 11.35 kg).

Shipping Weight Approximately 31 Ibs (approximately 15.10 kg).

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