LG 32LW4500, Service Manual

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LG 32LW4500 Service Manual
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LG PLASMA TV
42pt350r-Td LG TV Service
Manual Service Manual
LG LED 32LE5500. Samsung LCD
A55x Service

 
0 R3761
HALF_NIM
1K
OPT
R3750
TU_CVBS
100pF
50V
C3737
0
OPT
R3707
100uF
16V
C3705
FULL_NIM
4.7K
FULL_NIM
R3742
+5V_TU
0 . 1 u F
16V
C3704
0.01uF
25V
C3709
BOOSTER_OPT
LNA2_CTL
RF_SWITCH_CTL
18pF
50V
C3711
TU_I2C_NON_FILTER
+3.3V_TU
1.2K
R3741
TU_IIC_ATSC_SANYO
10K
OPT
R3754
IF_P_MSTAR
TUNER_RESET
100
FULL_NIM
R3702
0 R3760
HALF_NIM
10K
R3743
BOOSTER_OPT
220
R3752
4.7K
R3753
2.2K
R3737
BOOSTER_OPT
100pF
50V
C3703
2SC3052
OPT
Q3704
E
B
C
10K
R3745
BOOSTER_OPT
1.2K
R3740
TU_IIC_ATSC_SANYO
0
RF_SW_OPT
R3705
+5V_TU
33 R3735
TU_I2C_NON_FILTER
+3.3V_TU
BLM18PG121SN1D
L3701BOOSTER_OPT
18pF
50V
C3713
TU_I2C_NON_FILTER
0
R3704
HALF_NIM
+3.3V_TU
33 R3736
TU_I2C_NON_FILTER
22pF
50V
FULL_NIM
C3712
0 . 1 u F
16V
C3710
AP2132MP-2.5TRG1
FULL_NIM_BCD
1
PG
+5V_TU
DEMOD_SDA
2SC3052
Q3702
BOOSTER_OPT
E
B
C
0 . 1 u F
16V
C3738
0 . 1 u F
C3717
0
R3734
BOOSTER_OPT
ISA1530AC1
Q3703
E
B
C
100
R3732
0 R3749
0 . 1 u F
16V
OPT
C3728
0 . 1 u F 1 6 V
C3702
IF_AGC_MAIN
+1.2V/+1.8V_TU
10K
FULL_NIM_BCD
R3771
+3.3V_TU
+3.3V_TU
100pF
50V
C3707
IF_N_MSTAR
100K
R3733
4.7K
FULL_NIM
R3744
10uF
10V
OPT
C3731
CONTROL_ATTEN
ISA1530AC1
Q3701
BOOSTER_OPT
E
B
C
TU_SCL
220
R3751
TDTJ-S001D
DVB_1INPUT_H_LGIT
TU3702
14
3 . 3 V
13
1 . 2 V
5
AS
12
GND
11
VIDEO
2
BST_CNTL
10
NC
4
NC[RF_AGC]
1
ANT_PWR[OPT]
17
DIF_1
9
SIF
8
NC[IF_TP]
3
+B
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
SHIELD
19
0 . 1 u F
16V
C3701
TU_SDA
22pF
50V
FULL_NIM
C3714
DEMOD_SCL
0
OPT
R3762
0 . 1 u F
16V
C3708
100
FULL_NIM
R3701
IF_AGC_SEL
0 . 1 u F
16V
C3706
AZ1117BH-ADJTRE1
HALF_NIM_1.2V_BCD
INPUT
GP3_ATSC_1INPUT_H_SANYO
10uF
6.3V
C3739
CN
TDFR-C036D
CN_2INPUT_H_LG3911
TU3701
1
RF_S/W_CNTL
2
BST_CNTL
3
+B1[+5V]
4
NC[RF_AGC]
5
NC_1
6
SCLT
7
SDAT
8
NC_2
9
SIF
10
NC_3
11
VIDEO
12
GND
13
+ B 2 [ 1 . 2 V ]
14
+ B 3 [ 3 . 3 V ]
15
RESET
16
NC_4
17
SCL
18
SDA
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
AP1117EG-13
IC3703-*1
HALF_NIM_1.2V_DIODES
ADJ/GND
OUT IN
1K
R3741-*1
TU_IIC_NON_ATSC_SANYO
1K
R3740-*1
TU_IIC_NON_ATSC_SANYO
20pF
50V
C3742
TU_I2C_FILTER
20pF
50V
C3743
TU_I2C_FILTER
COIL
R3735-*1
TU_I2C_FILTER
COIL
R3736-*1
TU_I2C_FILTER
20pF
50V
C3713-*1
TU_I2C_FILTER
20pF
50V
C3711-*1
TU_I2C_FILTER
FE_AGC_SPEED_CTL
C l o s e t o t h e t u n e r
GP2R_LARGE_TUNER
1 . s h o u l d b e g u a r d e d b y g r o u n d
2 . N o v i a o n b o t h o f t h e m
3 . S i g n a l W i d t h > = 1 2 m i l s
S i g n a l t o S i g n a l W i d t h = 1 2 m i l s
G r o u n d W i d t h > = 2 4 m i l s
close to TUNER
BOOSTER : CHINA OPT
close to TUNER
OPTION : RF AGC
FE_BOOSTER_CTL
The pull-up/down of LNA2_CTL
is depended on MODLE_OPT_1.
GPIO must be added for FE_BOOSTER_CTL
TUNER MULTI-OPTION
s h o u l d b e g u a r d e d b y g r o u n d
GPIO must be added.
close to TUNER
c l o s e t o I F l i n e
P u l l - u p c a n ’ t b e a p p l i e d
because of MODEL_OPT_2
c l o s e t o t h e t u n e r p i n , a d d , 0 9 0 2 9
P l e a s e , c h e c k m u l t i I t e m ! 1 0 / 1 2