Receiver Trouble - LG GB220 Service Manual

4.11 Receiver Trouble

TEST POINT
CIRCUIT
Audio Sub System
M15
EPN RCV_N
M16
EPP RCV_P
C202 0.1u
RCV_P
C203
E1
DNI
C204 0.1u D1
RCV_N
C206 220n C2
HP_ROUT
C208 220n
C1
HP_LOUT
1V81_VDD
C209 2.2u
C3
A1
B2
I2C_SDA
B3
C211
I2C_SCL
0.1u
LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Figure 4.11.1
VBAT
C200 C201
47p 2.2u
A4
MONO_IN+ MONO+
A3
MONO_IN- MONO-
E2
RIN ROUT
U200
LIN LM49150TLX
BYPASS
E3
LOUT
I2CVDD
SDA
D2
SCL VO_LDO
C213
C214
2.2u
2.2u
LSP
LSP
LSN
HP_A_ROUT
LSN
HP_A_LOUT
C212
2.2u
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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4. TROUBLE SHOOTING
C331
L304
27p
22nH
L305
22nH
LGE Internal Use Only