LG GDR-8162B Service Manual page 51

Dvd-rom drive
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IC101(5) : 3.6V
IC101(38) : 5V
IC101(45) : 5V
IC101(41) : 3.3V
soldering check :
IC101(10) -- IC201(70)
IC101(11) -- IC201(68)
IC101(12) -- IC201(69)
IC201
3.3VD
3.3VA
u-COM
1.5V
CN701
IC501
44
43
42
IC502
41
56
(B)
YES
NO
NO
YES
NO
YES
OK
IC101
3.3VA
5V
70
12
13
14
Serial BUS
CD
175
HFM
7
3.3VD
5
3.3VA
6
1.5V
Vo
5V
12V
Check item
• Q101
• IC101(3) -- Q101 -- CN101(25)
• 5V power-line.
• 3.3VA power-line.
• IC501
• IC101
• IC201
3
DVD LASER
power control
2
5
CD LASER
control
power control
4
68
69
5V
CN101
Pick-up unit
25
Q110
21
22
5V
20
Q102
19
11
CD / DVD
detector-switch
23
Q101
5V
HFM

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