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Panasonic JR-200 Documentation

From RetroTechCollection

The Panasonic JR-200 documentation hosted on the wiki is Panasonic's service manual and operating instructions for the JR-200U, the North American version of the JR-200.

Documents

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JR-200 documents hosted here
Document Order no. Pages Source
Service Manual, Personal Computer JR-200U EDCD 83-001 80 Internet Archive item panasonic-jr-200-u-service-manual; scanned by Vintage Volts
Operating Instructions, Personal Computer JR-200U – 64 Internet Archive item jr200umanual

[1][2]

Service manual EDCD 83-001

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Published by Matsushita Engineering and Service Company, Secaucus, New Jersey. Its contents list runs: 1 Diagnostic Programs (RAM test, ROM test, function check) p. 1; 2 Block Diagram p. 17; 3 Signal Code Table p. 18; 4 Memory Map p. 20; 5 Schematic Diagram (power supply and keyboard p. 21, main board p. 23); 6 Parts Location p. 24; 7 Waveforms p. 26; 8 Circuit Descriptions (timing generator, CPU, dynamic RAM, ROM, video RAM, character generator RAM, CRT controller and video interface, PIA, interrupts) p. 29; 9 Character Code p. 60; 10 Connector Pin Identification (display, tape, printer, joystick, external bus, optional RS-232C) p. 61; 11 LSI and IC Pin Configuration (MN1800A, MN1544CJR, MN4864CA2 and CB2, HM4864P3, HM6116P3, MN1271, HD61K201F, TTL) p. 64; 12 Disassembly p. 73; then exploded views, troubleshooting flowcharts and the replacement parts list.[3] The scan's PDF page numbers run two ahead of the printed numbers in the early sections and one behind them from the disassembly section on.

What these documents do not contain

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  • The service manual covers the 120 V NTSC JR-200U only. It gives no information on the Japanese National JR-200 or the PAL JR-200UP, whose timing is generated differently.[4]
  • The scan has no usable text layer, every page carries a "Vintage Volts" watermark, and the disassembly page and one troubleshooting chart are partly smudged. The troubleshooting flowcharts and the parts list are printed sideways.

Pages that cite these documents

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Service manual

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Download: Panasonic JR-200U Service Manual EDCD 83-001.pdf

Operating instructions

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Download: Panasonic JR-200U Operating Instructions.pdf

References

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  1. ↑ Panasonic JR 200 U Service Manual, Internet Archive—link(accessed 2026-10-01)
  2. ↑ JR-200U Manual, Internet Archive—link(accessed 2026-10-01)
  3. ↑ Matsushita Engineering and Service Company, Service Manual: Personal Computer JR-200U, order no. EDCD 83-001, table of contents. File:Panasonic JR-200U Service Manual EDCD 83-001.pdf.
  4. ↑ Markku Reunanen, Discovering the Panasonic JR-200U—link(accessed 2026-10-01)