AVD-C700ES - Sony DVD Service Manual (repair manual). Page 7

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7
AVD-C700ES
5. SERVICING POSITION OF CDM
LINK board
Ver 1.1
6. DECISION TO PASS OR FAIL OF THE OPTICAL PICK-UP BLOCK
oscilloscope
+
MB board
CN1013 pin 1
CN1013 pin 3
CD : 1.05 
±
 0.2 Vp-p
VOLT/DIV : 200 mV 
TIME/DIV : 500 nS
DVD : 1.09 
±
 0.2 Vp-p
RF signal waveform
– MB BOARD (SIDE A) –
CN1013
1
7
Connection:
Procedure:
1. Connect an oscilloscope to test point 1  pin and 3  pin of
CN1013 on the MB board.
2. Turn the power on.
3. Put the disc (LUV-P01) (Part No.: 4-999-032-01) (CD) in to
playback.
4. Confirm that oscilloscope waveform is clear and check RF
signal level is correct or not.
5. Put the disc (TDV-520CSO) (Part No.: J-2501-236-A) (DVD)
in to playback.
6. Perform Comfirmation in the same manner as step 4.
Note:
A clear RF signal waveform means that the shape “
◊” can be clearly
distinguished at the center of the waveform.
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