Parts/Service for DC-MS1

Parts/Service for DC-MS1

Brand: SANYO

Category: Audio

Document Type: Parts/Service

Language: EN

Uploaded: Nov. 21, 2025, 8:30 p.m.

Service Mode (CD)

Entry: Press CD TRAY and REPEAT keys simultaneously, then press another key within one second.

  1. Key Input Signal Connections: Press COMPUTER REC key. Toggles LEDs and LCD segments between all on and all off. Pressing keys in Table 1 turns on corresponding LCD segment.
  2. CD Tracking Balance Adjusting Mode: Press EDIT key. Unit automatically powers on and enters tracking balance adjustment status. Adjustments can be made when CD PLAY is pressed.
  3. CD Operation Display Mode: Press TIME key. Displays CD operations on LCD (see Tables 2 & 3). If a CD error occurs, a calendar number from Table 4 appears, and the display freezes. Press STOP to unfreeze when CD is stopped.

Service Mode (Tape Deck & Amplifier)

Entry: Hold DISPLAY, BASS, and POWER keys while powering down. Set function to TAPE.

  1. Key Input Signal Connections: Pressing keys turns on corresponding LCD segment or LED (Table 5).
  2. Tape-Deck Service Mode: Short the "short-point" of the pre-amplifier P.C. board.

System Construction of Micro Processors

Diagram showing the interconnected microprocessors, ICs, and their functions.

Troubleshooting and error codes

No. STATE OF CD ERROR No. STATE OF CD ERROR
Good The subcode is not input while the servo is on.
1 Focusing is not possible in focus search. 6 Tray open cannot complete.
2 The subcode is not input during disc startup. 7 Tray close cannot complete.
3 TOC cannot be read. 8 Panel open cannot complete.
4 The focus was lost while the servo was on. 9 Panel close cannot complete.
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