9
HCD-RV777D/RV888D/RV999D
1-6. DECISION TO PASS OR FAIL OF THE OPTICAL PICK-UP BLOCK
1-5. NOTE OF TRANSFORMER
oscilloscop
+
DMB07 board
CN901 pin 1
–
CN901 pin 3
CD : 1.05
±
0.2 Vp-p
VOLT/DIV : 200 mV
TIME/DIV : 500 nS
DVD : 1.09
±
0.2 Vp-
RF signal waveform
– DMB07 BOARD (SIDE A) –
CN901
1
7
Connection:
Procedure:
1. Connect an oscilloscope to test point 1 pin and 3 pin of CN901
on the DMB07 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.
Checking Location:
transformer
(T901)
more than 3mm
power cord
Pull the power cord in the direction of the arrow
A
with care to keep the cord from
contact with the transformer (T901).
Then fix the cord using two clips
indicated by the arrow
B
.
back panel
australian, saudi arabia
model only
SUB TRANS boar
A
B
B
NOTE: Make sure that the power cord is distant
more than 3mm from the transformer (T901).
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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