LG HB620 Service Manual

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 94 -
FB503
3
4
1
19
2
21
CN701
MICBIAS
C841 33u
68R703
R702
2.2K
TV_OUT
EAR_MIC_P
1% 1%
PCB Rev. Check
Rev C
R840 0
C202 0.1u
0.1uC203
MIC1N
AF20
MIC1P
AE20 AF21
MIC2N
AF22
MIC2P
MICBIAS
T15
LINE_L_IN
AC21 AC22
LINE_L_IP
AC18
LINE_ON
LINE_OP
AC17 AC20
LINE_R_IN
LINE_R_IP
AC19 AA23 W21
HKAIN2 HKAIN3
V19 Y21
HKAIN4 HKAIN5
AB23
HPH_L
W17 AA17
HPH_R
HPH_VREF
AA19
HKAIN0
V21
HKAIN1
EAR1ON
AE18
EAR1OP
AF18
CCOMP
AA20 AF19
AUXIN
AE19
AUXIP
AUXOUT
AA18
VREG_MSMP_2.7V
C201
10p
R203
150K
TP201
R202
680K
EAR_MIC_P AMUX_OUT VBAT_TEMP VBAT_SENSE RMT_ADC RECEIVER+ RECEIVER- MICBIAS HEADSET_L HEADSET_R OPT_L OPT_R
MIC1P MIC1N
EAR_MIC
_
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LG HB620 Specifications

General

Brand	LG
Model	HB620
Category	Cell Phone
Language	English