Table of Contents
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1. Main part
1-1. Audio Out
No power at IC701 pin1, 12
Is B + applied to pn701?
Is Q703, 704 normal?
Yes
SW 702 check
1-2. Tuner
Tuner Abnormal
Does 4.5V come out at
IC101 pin6?
Does signal come out at
pin13, 14?
Yes
SW 702 check
LGE Internal Use Only
No
No
D901~904
Fuse open?
Yes
Fuse change
Transformer check
No
Replace
Q703, 704
No
No
Is B + applied to
Q102?
Yes
Q101, 102
check
No
IC101
check
- 2-6 -
No
Replace diode
normal?
Yes
Q901, ZD901
check
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