KAYPRO TOCHNlCAL MANuAL AUGUST 1984 Introduction Purpose of Technical Manual 1-1 Soope of Technical Manual 1-2 FCC In:fbnra.tion 2-1 3.0 M::rlel Speci fications 3.1 KAYPRO 2 3-1 3.2 KAYPRO 2/84 am 2X 3-2 3.3 KAYPRO 4 3-3 3.4 KAYPRO 4/84 3-4 3.5 . KAYPRO 4X 3-5 3.6 KAYPRO 10 3--6 3.7 KAYPRO ROOIE 3-7 RCM Revisions - CP/M Canpatibility 4-1 5.0 Olassis 5.1 Raicva1/Replacenent of H:lod (Exc. ROOIE) 5-1 5.2 '!buch-up In1bnnation 5-2 6.0 Mainboards-Troub1eshooting Tips 6-1 6.1 KAYPRO 2 (81-110-11) 6-2 6.2 KAYPRO 2/4 (81-240-n) 6-8 6.3 KAYPRO 10 (8l-180-n) 6-16 6.4 KAYPRO 2/84 and 2X (81-294-n) 6-26 6.5 KAYPRO 4/84 (81-184) 6-35 6.6 KAYPRO Rc.EIE (81-296-n) 6-44 6.7 Renoval/Instal1ation Instructions 6-53 7.0 CRr Assemblies 7.1 Descriptions and Adjustments 7-1 7.2 Video Alignment 7-3 7.3 Video Signals en KAYPRO Mai.nboard 7-4 7.4 ALIGI.M1\C Diagnostic Listirg 7-5 7.5 Renoval/Installation Instructions 7--8 CQfl'fBl'S (ODtinued) ~Ql PAGE 8.0 Pc7Ner Supplies 8.1 Introduction 8-1 8.2 Description and 220V Configuration 8-2 8.3 Removal/Installation Instructions 8-5 9.0 Diskette Drives 9.1 Introduction/Disk Drive Cleaning 9-1 9.2 Which Brand of Drive Is It? 9-2 9.3 Jumpering Diagrams 9-5 9.4 High-Density (Drivetec) Drives 9-9 9.5 Removal/Installation Instructions 9-10 10.0 Hard Disk Drives (KAYPRO 10) 10.1 Introduction 10-1 10.2 Description 10-2 10.3 Hard Drive Con figuration 10-3 10.4 Hard Drive or Floppy Drive Removal/ Installation Instructions (KAYPRO 10) 10-4 11.0 Hard Drive Controller Board (KAYPRO 10) 11.1 Description 11-1 11.2 Removal/Installation Instructions 11-2 12.0 Inter face Board (KAYFRO 10'> 12.1 Description 12-1 12.2 Removal/Installation Instructions 12-2 13.0 Keytx::>ards 13-1 14.0 ROUE RaIoval/Installation Instructions 14.1 Cllassis Covers 14-1 14.2 Diskette Drives 14-2 CCJiI'lBll"S ( Qmt.inued) SB!l'ICN PAGE 15.0 Troub1eshooti~ 15.1 Introduction 15-1 15.2 KAYPRO 2 and 4 Symptan-Fix Guides 15-2 15.3 KAYPRO 10 Symptan--Fix Guide 15-8 15.4 RCBIE Symptan-Fix Guide 15-15 15.5 KAYPRO 2/84 and 2X Synptan--Fix Guide 15-21 15.6 KAYPRO 4/84 and 4X Symptan-Fix Guide 15-22 16.0 System I/O 16.1 Video Camland Protocol 16-1 16.2 Key1:x>ard Codes and Ftmctions 16-2 16.3 Connector Pin-o..tt.s 16-3 16.4 Port Addresses 16-10 17.0 Re ference Section 17.1 ASCII Chart 17-1 17.2 Merory Maps 17-2 17.3 Vendor Addresses 17-6 18.0 Suggested Re ferences 1S-:-1 INDEX 1.1 PURJ?ajE CF T!XB1ICAL MN!U\L '!his publication is int.eOOed to be a technical re ference guide to be used by trained repair technicians. It will attempt to caver all dealer-serviceable sections of Kaypro computers. '!his manual replaces previous manuals on the subject. The procedures and in:fbrmation contained in this manual assume technical expertise on the part of the reader. 'lb avoid personal injury, do IDt perfbrm any servicing tmless you are a quali fled service technician. It is our desire to provide dealers with the infbrmation and sUR?Qrt needed to expedite repairs and provide the users with the service they deserve. We encourage your conunents and suggestions regarding this manual. 1-1 '!be in:fbrmation and procedures covered by this manual assume sane technical krlc:Jwledge on the part of the reader. '!be J;X>licyof Kaypro Corporation is to repair computers to the modular level only. ENen Kaypro1s repair technicians do not repair switching power supplies, CRl' assemblies, or disk drives. Repairs to Irodular oomponents not manufactured by Kaypro Corporation (J;X>Wer supplies, CRI' assemblies, disk drives) are Nor oovered by this manual. H:>wever, we do not discourage dealers and technicians who have the knowledge and the tools to repair to the compalerlt level :from doing so, on out-o f­ warranty Kaypro canput.ers. '!be adjustment am rerroval/replacement in:fbrmation in this manual is organized by module type, with the exception of reIOOVal/replacement infbrmatioo 1br the KAYPRO RCBIE, which is placed in a separate sectioo due to the di fferences in chassis design and hardware module placement in that machine. 1-2 As Kaypro keeps in step with oomputer technology, the models have changes which a ffect FCC ratings. 'nle proper rating is a ffixed to the back of each oomputer. Caltact the Kaypro Engineering Department if you need further in1brmation. 2-1 3.8 MCIEL SPl!ClFlCATICBS 3.1 I<AYPRO 2 SPl!ClFlCATI(H) CPU Z-S'" 2. 5 MHz 641< bytes Sl-ll"'-n or Sl-240-n series. DISK srCEAGE Two 5-1/4 inch, double~ensity, single­ sided, floppy disk drives, providing 19lK bytes of storage per diskette. Detachable, 72 key typewriter style keyboard with IS programnable keys. VIDEO SCREEN Nal-glare, 9-inch, green tilOSPhor screen with a 25 rOil x S'" column display. I/O CCNNrel'ICNS Ole "Centronics"-type parallel port, ale RS-232C serial port. 3-1 3.2 IQ\YPRO 2/84 and 2X SP&!li'1CATIQ'IS CPU ZOO-A 4.0 MHz RAM 641< bytes 81-294-n series. DISK s:raw;E Two 5-1/4 inch double-density, s~le­ (Kaypro 2/84) sided, flOJ;'PY disk drives, providing 1911< bytes of storage per diskette. DISK srCRAGE Two 5-1/4 inch double-density, double­ (Kaypro 2X) sided, flOJ;'PY disk drives, providing 39m< bytes of storage per diskette. Detachable, 72 key typewriter style keyboard with 18 programnable keys. VIDEO SCREEN Non-qlare, 9-inch, green phosphor screen with a 25 row x 8eJ column display. I/O Cc:NNECl'ICNS (he "Centronics"_type parallel part, 1:\\0 RS-232C serial parts. 3-2 3.3 KAYPlID 4 SPl!X!lFICATlQ'IS CPU Z-80 2.5 MHz 641< bytes 81-240-n series. DISK STCEAGE Two 5-1/4 inch double-density, double­ sided, floppy disk drives, providing 39m< bytes of storage per diskette. KEYBmRD Detachable, 72 key typewriter style keyboard with 18 programnable keys. VIDEO SCREEN Non-glare, 9-inch, green phosphor screen with a 25 row x 80 column display. I/O CCNNECI'ICNS (he "Centronics"_type parallel port, ale RS-232C serial port. 3-3 3.4 KAn'RO 4/84 SPB!IFICATIO!1S CPU Z-80A 4.0 MHz 641< bytes 81-184-n series. DISK S'I'CiWE Two double-density, Cbuble-sidErl, floppy disk drives, providing 39m< bytes of storage per diskette. Detachable, 72 key typewriter style keyboard with 18 prograntnable keys. VIDEO SCREEN Non-glare, 9-inch green phosphor screen with a 25 row x 80 column display. I/O CCNNEX:TICNS (he "Centronics"-type parallel port, t\\1O RS-232C serial ports, one RJllC ncdular telephone jack. MCDEM Built-in, 300-baoo ncdem, with Bell System 103 cacpatibility. Uses Texas Instruments TMS99531/TMS99532. REAL-TIME CLcx:::K Built-in real-time clock. Uses Natiooal t+158167. -_r."_ 3-4 3.5 KAYPRO 4X SPB!ll'l~Q1S CPU Z-80A 4.0 MHz 64K bytes 81-296-n series. DISK S'I'<::RAGE Two 5-1/4 inch, high-density, double­ sided, flowy disk drives providing 2.6M bytes of storage per diskette. Detachable, 72 key typewriter style keyboard with 18 programnable keys. VIDEO SCREEN Non-glare, 9-inch, green PhoSFhor screen with a 25 row x 80 column display. I/O CCNNECl'ICNS Qle "Centronics"-type parallel port, two RS-232C serial ports, one RJllC ncdular telephone jack. MCDEM Built-in, 300-baoo. ncdem, with Bell System 103 compatibility. Uses Texas Instruments TMS99531/TMS99532. REAL-TIME CLOCK Built-in real-time clock. Uses National Mo158167. 3-5 3.6 :KAYPRO 18 SPB!IFlCATIQ1S CPU Z80A, 4.0 MHz 641< bytes 8l-l80-n series. DISK STORAGE (be 5-1/4 inch dOuble-density, double­ sided, flowy disk drive providing 3901< bytes of storage per diskette. (be hard disk drive providing 10M bytes of storage. Detachable, 72 key typewriter style keyboard with 18 programnable keys. VIDEO SCREEN Non-glare, 9-inch, green {ilosptlor screen with a 25 reM x 80 column display. I/O CCNNECl'ICNS (be "Centronics"-type parallel port, two RS-232C serial ports. 3--6 3.7 DnW) RmIE SPB!lFlCATIOE CPU- Z8M, 4.0 MHz 641< bytes 8l-296-n series. DISK STCEAGE Two 5-1/4 inch, high~ensity, double­ sided, fJ..oppy disk drives providing 2.6M bytes of storage per diskette. Detachable, 72 key typewriter style keyboard with 18 pr03Iallluable keys. VIDEO SCREEN Non~lare, 9-inch, green PhOsphor screen with a 25 rOIl x 00 collllm display. Ilo CCNNECI'ICNS Ol.e 1.'Centronics"type parallel port, two RS232C serial ports, ooe RJlle roodular telephone jack. MCDEM Built-in, 3000-balXl modem, with Bell System 103 compatibility. Uses Texas Instruments 'IMS99531/'IMS99532. Built-in real-time clock. Uses National ~8l67. 3-7 CP/M VERSICB I<AYPRO PARI' t ReM VERSIQT (:fDr CP/M disk) 2/83 2.2F 0777 81-149-C or 81-232-A 4/83 2.2F 1475 81-232-A 4/83 + 88 2.2F 1475 81-232-A 2/84 2.2G 2619 81-292-A 4/84 2.2G 2622 81-292-A 4/84 + 88 2.2G 2622 81-292-A 2 X 2.2G 2470 81-292-A 4X 2.2G 2340 81-326-E RCBIE 2.2G 2340 81-326-E 4-1 5.8 cassIS 5.1 amssm IUD lBD1AL (FJCa:P1' I<AYPRO Ra3IE) 1.