Sony HCD-ZX10D Service Manual page 6

HCD-ZX10D
QQ
3 7 63 1515 0
HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF
2 Pull-out the disc tray.
TE
L 13942296513
DECISION TO PASS OR FAIL OF THE OPTICAL PICK-UP
BLOCK
Connection:
DMB07 board
CN901 1 pin
CN901 3 pin
Procedure:
1. Connect an oscilloscope to test point 1 pin and 3 pin of
CN901 on the DMB07 board.
2. Press the ?/1 button to 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 correrect 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.
RF signal waveform
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http://www.xiaoyu163.com
A
oscilloscope
+
–
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
x ao u163
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CD: 1.05 ± 0.2 Vp-p
DVD: 1.09 ± 0.2 Vp-p
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http://www.xiaoyu163.com
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8
1 Turn the gear (chuck)
in the direction of
arrow A .
Q Q
3 6 7 1 3 1 5
Checking Location:
– DMB07 BOARD (Component Side) –
co
.
9 4 2 8
0 5 8 2 9 9 4 2 8
CN901
1 7
m
9 9
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