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- SERVICE NOTE
- GENERAL
- DISASSEMBLY
- Upper Panel Assy, Bottom Panel Assy Removal
- Main Board Removal
- Mechanism Deck Removal
- Optical Pick - up Assy, Control Board REC Board Removal
- Battery Case Assy Removal
- Switch Board, Power Board Removal
- TEST MODE
- ELECTRICAL ADJUSTMENTS
- EXPLANATION OF IC TERMINALS
- DIAGRAMS
- Block Diagram
- Circuit Boards Location
- Printed Wiring Boards - Main Section
- Schematic Diagram - Main (1/3) Section
- Schematic Diagram - Main (2/3) Section
- Schematic Diagram - Main (3/3) Section
- Schematic Diagram - Power Section
- Printed Wiring Boards - Control Section
- Schematic Diagram - Control Section
- EXPLODED VIEWS
- Upper Panel, Bottom Panel Section
- Chassis Section
- Mechanism Deck Section - 1
- Mechanism Deck Section - 2
- ELECTRICAL PARTS LIST
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5-6. Low Reflection CD Traverse Adjustment Connection :
Oscilloscope MAIN board TP5980 (TE) AP5430 (VC)
5-7. CD Traverse Adjustment Connection :
Oscilloscope MAIN board TP5980 (TE) AP5430 (VC)
Adjusting Method : 1. Set the servo mode of the test mode (Mode : 000). 2. Press the � key, and set the low reflection CD playback adjustment mode (Mode : 040) using the volume + and � keys. 3. Load any MO disc available on the market. 4. When the � key is pressed, the low reflection CD playback EF balance adjustment mode (Mode : 042) will be set after low reflection CD focus search ON (Mode : 041). 5. Press the Pkey to perform automatic adjustment, and check that the traverse waveform is symmetrical at the top and bottom.
(Traverse Waveform)
A 0V B C
Adjusting Method : 1. Set the servo mode of the test mode (Mode : 000). 2. Press the �key, and set the CD playback adjustment mode (Mode : 050) using the volume + and � keys. 3. Press the = + and move the optical pickup to the and keys center circumference. 4. Load a CD test disc (TDYS-1). 5. When the �key is pressed, the CD playback EF balance adjustment mode (Mode : 052) will be set after CD focus search ON (Mode : 051). 6. Press the Pkey to perform automatic adjustment, and check that the traverse waveform is symmetrical at the top and bottom.
(Traverse Waveform)
A 0V C B
Specification : A = B, C
0.9 Vp-p
6. Check that the traverse level at this time is above 0.9Vp-p. 7. Press the p key. 8. Exit the test mode.
Specification : A = B, C
1.0 Vp-p
7. Check that the traverse level at this time is above 1.0Vp-p. 8. Press the p key. 9. Exit the test mode.
� 31 �
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