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Input
PDP TV
Block
Make sure you can't hear any audio
Y
Check speaker for damage.
Y
Check Connector
P1000
Y
Check IC700 Power
17V(L704), 3.3V(L702,L703)
Y
Check IC700 Status
PDN(#19) / Reset(#25) is High?
Y
Check SCL,SDA
R707, R708
Y
Check BCM I2S Output
R114, #21, 22, 23 on IC700
Y
Replace AMP(IC700)
All Input Audio Problem
N
Replace the Speaker
N
Replace P1000
N
Check 17V (P500 #1,2),
3.3V (IC505 #2)
N
Check
Reset (R704) / PDN (R702)
:They must be High (3.3V)
N
Replace R707, 708
N
Replace BCM(IC100).
Making
2010. 2 . 22
Revision
ⓒ LG Electronics. Inc.2009
전자 - 6-2
8/15
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