DOWNLOAD LG 32LH70 (CHASSIS:LA92D) Service Manual ↓ Size: 3.63 MB | Pages: 32 in PDF or view online for FREE

Model
32LH70 (CHASSIS:LA92D)
Pages
32
Size
3.63 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32lh70-chassis-la92d.pdf
Date
PREV: LG 32LH60YR (CHASSIS:LP91S) Service Manual

LG 32LH70 (CHASSIS:LA92D) Service Manual ▷ View online

THE    SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE    SYMBOL MARK OF THE SCHEMETIC.
FE_TS_DATA[0]
+1.8V_TU
C116
0.1uF
16V
L101
0603CS-R27XGLW
270nH
IF_AGC
C124
0.1uF
16V
R100
820
1/8W
1%
+3.3V_TU
+1.8V_TU
C121
0.1uF
16V
L106
1008CS-821XGLC
C131
0.1uF
16V
C114
0.1uF
16V
C145
0.1uF
16V
R127
100
R126
100
C120
0.1uF
16V
C130
0.1uF
16V
C136
0.1uF
16V
+3.3V_TU
C112
0.1uF
16V
C127
0.1uF
16V
+3.3V_TU
C117
0.1uF
16V
C113
1000pF
50V
+1.8V_TU
R116
10
1/10W
5%
C126
0.1uF
16V
C152
47pF
50V
OPT
C118
1000pF
50V
TUNER_SIF_IF_N
1:C9
C101
56pF
50V
C104
39pF
50V
R123
4.7K
+3.3V_TU
C100
0.1uF
16V
C134
0.1uF
16V
C140
0.1uF
16V
R111
1K
1/16W
5%
C151
47pF
50V
OPT
TUNER_CVBS_IF_P
L105
0603CS-R39XGLW
390nH
IC100
XC5000
1
VDDA_1
2
IN1
3
GND_1
4
IN2
5
GND_2
6
EXTCHOKE
7
GND_3
8
VDDA_2
9
VDDA_3
10
VDDC_1
11
GND_4
12
VDDC_2
13
VDDC_3
14
VDDA_4
15
VAGC
16
VIF
17
VDDA_5
18
SIF
19
GND_5
20
VDDC_4
21
VDDA_6
22
GND_6
23
VDDD_1
24
TESTMODE
25
DDI1
26
VDDC_5
27
DDI2
28
ADDRSEL
29
X2
30
GND_7
31
X1
32
EXTREF
33
VDDD_2
34
SCL
35
SDA
36
GND_8
37
RESET
38
VI2C
39
VDDC_6
40
VREF_N
41
VREF_P
42
VDDC_7
43
VDDC_8
44
REXT
45
VDDA_7
46
GND_9
47
VDDC_9
48
VDDA_8
C125
0.1uF
16V
Control_Atten
004:D6
C115
0.1uF
16V
C128
0.1uF
16V
C141
0.1uF
16V
C105
0.1uF
16V
+3.3V_TU
R101
24
1/8W
5%
R110
4.99K
1/10W
1%
R122
4.7K
C103
120pF
50V
+1.8V_TU
R
1
0
6
3
9
0
R103
680
IF_N
004:D6
FE_SIF
004:D6
R
1
0
4
3
9
0
C106
10pF
50V
TU_CVBS_IN
R107
0
Q102
ISA1530AC1
E
B
C
TUNER_SIF_IF_N
004:D6
C108
0.1uF
16V
R109
390
Q101
ISA1530AC1
E
B
C
TUNER_CVBS_IF_P
004:D6
C107
10pF
50V
Q100
ISA1530AC1
E
B
C
C110
0.1uF
16V
R108
390
C109
0.1uF
16V
C111
0.1uF
16V
IF_P
Q103
ISA1530AC1
E
B
C
R102
680
L117
500
C196
0.1uF
50V
C195
0.1uF
50V
C180
0.1uF
50V
C194
0.1uF
50V
L113
500
C190
10uF
16V
3216
+3.3V_AVDD_PVSB
C177
10uF
16V
3216
+3.3V_DVDD_PVSB
+1.2V_DVDD_PVSB
C168
10uF
16V
3216
R137
0
1/4W
5%
+1.2V_PVSB
C170
0.1uF
50V
C172
0.1uF
50V
C142
0.01uF
FE_TS_CLK
C154
1uF
10V
AR102
100
1/16W
R121
OPT
FE_TS_VALID
C155
OPT
+3.3V_DVDD_PVSB
VSB_RESET
R125
470
PV
AR100
100
R115
1K
IF_N
JP100
C135
0.1uF
C153
27pF
R120
OPT
IF_AGC
+3.3V_AVDD_PVSB
R130
1M
FE_TS_SYNC
FE_TS_CLK
C150
27pF
JP103
+3.3V_DVDD_PVSB
R133
OPT
R132
47K
R134
OPT
+1.2V_DVDD_PVSB
R114 100
FE_DEMOD_SCL
AR101
100
C156
OPT
R118
100
FE_TS_SYNC
IF_P
C143
0.01uF
R113 100
R119
0
OPT
+3.3V_AVDD_PVSB
R131
0
OPT
D101
1N4148W
R124
5.1K
OPT
R136
22
R135
22
LD100
PV
FE_DEMOD_SDA
C138
0.1uF
FE_TS_VALID
JP101
JP102
C189
100uF
16V
C164
0.1uF
16V
C191
100uF
16V
L114
BLM18PG121SN1D
GND
C169
0.1uF
16V
C181
0.1uF
16V
C175
100uF
16V
C184
0.1uF
16V
C179
100uF
16V
IC106
AP1117E18G-13 
2
OUT
3
IN
1
ADJ/GND
C187
4.7uF
10V
OPT
+3.3V
C178
0.1uF
16V
C186
0.1uF
50V
R145
20K
R146
10K
IC104
SC4215ISTRT
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
C183
100uF
16V
+1.2V_PVSB
L111
500
C185
10uF
16V
3216
C193
0.1uF
50V
L116
500
+3.3V_TU
+5V_TUNER
+5V_TUNER
+5V_TUNER
+5V_TUNER
+1.8V_TU
C102
2200pF
50V
TUNER_RESET
R105
0
FE_TUNER_SCL
FE_TUNER_SDA
FE_TS_DATA[4]
FE_TS_DATA[2]
FE_TS_DATA[5]
FE_TS_DATA[1]
FE_TS_DATA[6]
FE_TS_DATA[0]
FE_TS_DATA[7]
FE_TS_DATA[3]
X
1
0
0
3
1
.
8
7
5
M
H
z
L102
MLF1608A2R7J
2.7uH
L103
MLF1608A2R7J
2.7uH
C119
0.1uF
16V
C123
0.1uF
16V
C132
0.1uF
16V
C139
0.1uF
16V
R148
15K
L118
MLB-201209-0120P-N2
C199
0.1uF
50V
C159
0.1uF
50V
C157
100uF
16V
R147
1K
OPT
R149
8.2K
C198
100uF
16V
IC107
SC156515M-1.8TR
2
VIN
1
EN
3
GND
5
ADJ
4
VO
C197
4.7uF
10V
+3.3V_PVSB
+3.3V_PVSB
+3.3V_PVSB
+3.3V_PVSB
C158
10uF
16V
3216
C160
100uF
16V
L119
500
+3.3V_TU
+5V
+5V_GENERAL
C129
0.1uF
16V
+5V_TUNER
R443
2.7K
C122
0.1uF
16V
X101
25MHz
L120
500
C182
0.1uF
50V
C148
18pF
50V
C149
18pF
50V
C1000
1uF
10V
R138
20K
D102
RCLAMP0502B
IC101
LGDT3305
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
C167
2.2uF
16V
C165
2.2uF
16V
C146
18pF
50V
C
1
4
7
1
8
p
F
5
0
V
L107
LQH32MN2R2K23L
L104
0603CS-12NXGLW
12nH
D
1
0
0
5
0
V
B
A
P
7
0
-
0
2
JK100
KCN-BT-0-0082
1
2
BAP70-02
845 OHM 1%
VSB +3.3V B+ BLOCK
VSB +1.0V B+ BLOCK
VDD33
I2CRPT_SCL
VDD33
VROA
TPERR
TPDATA[6]
SDA
SLIM_SCAN
XM
TPDATA[5]
VINA1
JTAG
VSS
OPM
VSS33
XTALO
I2CSEL
TPVALID
TPDATA[4]
VDD33
VDD
TPDATA[1]
NRST
XTALI
VCCAAD10A
VINA2
TPDATA[0]
TPDATA[7]
PLLAVDD
VSSAD10
RF OUT
VSS33
TPDATA[2]
PLLAVSS
VDD
VDD
VSSAAD10A
VSS
TPSOP
IF OUT
TPDATA[3]
INCAP
VSS
I2CRPT_SDA
SCL
ANTCON
VSS33
TPCLK
NIRQ
V0 = 0.8(R1+R2) / R2
R1
R2
BCM(VENUS)
HA JAE MIN
Tuner
08.11.5
1   3
Active Low
20ms
I2C Address : C2
Analog Supply Max Current(+3.3V/Operating ) : 250mA
                         (+1.8V/Operating ) : 75mA
Digital Supply Max Current ( +1.8V/Operating ) : 75mA 
F
i
b
e
r
 
O
p
t
i
c
THE    SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE    SYMBOL MARK OF THE SCHEMETIC.
R236
1K
C240
100pF
D204
5.6V
ADMC5M03200L
JK200
PPJ225-01
9J
[GN]E-LUG
4A
[GN]O-SPRING-S
3A
[GN]CONTACT-S
9K
[BL]E-LUG
8B
[BL]C-LUG-S
9L
[RD]E-LUG_1
8C
[RD]C-LUG-S
9M
[WH]E-LUG_1
8D
[WH]C-LUG-S_1
9N
[RD]E-LUG_2
4E
[RD]O-SPRING-S_1
3E
[RD]CONTACT-S_1
9P
[YL]E-LUG
4F
[YL]O-SPRING-S
3F
[YL]CONTACT-S
9Q
[WH]E-LUG_2
8G
[WH]C-LUG-S_2
9R
[RD]E-LUG_3
4H
[RD]O-SPRING-S_2
3H
[RD]CONTACT-S_2
5J
[GN]O-SPRING-L
6J
[GN]CONTACT-L
7K
[BL]C-LUG-L
7L
[RD]C-LUG_L
7M
[WH]C-LUG-L_1
5N
[RD]O-SPRING-L_1
6N
[RD]CONTACT-L_1
5P
[YL]O-SPRING-L
6P
[YL]CONTACT-L
7Q
[WH]C-LUG-L_2
5R
[RD]O-SPRING-L_2
6R
[RD]CONTACT-L_2
R234
470K
D220
5.6V
ADMC5M03200L
+5V_GENERAL
R202
1K
D216
5.6V
ADMC5M03200L
R232
10K
D207
30V
ADUC30S03010L
R227
10K
D215
5.6V
ADMC5M03200L
D209
5.6V
ADMC5M03200L
+5V_GENERAL
C238
47pF
50V
D208
5.6V
ADMC5M03200L
R
2
1
3
4
7
0
K
R210
0
D200
5.6V
ADMC5M03200L
R207
1K
D206
30V
ADUC30S03010L
C239
100pF
D205
5.6V
ADMC5M03200L
D202
5.6V
ADMC5M03200L
D212
5.6V
ADMC5M03200L
R
2
1
2
4
7
0
K
D201
5.6V
ADMC5M03200L
R
2
3
0
4
7
0
K
C206
47pF
50V
+5V_GENERAL
R240
1K
R217
10K
D218
30V
ADUC30S03010L
R214
10K
R
2
3
1
4
7
0
K
D217
5.6V
ADMC5M03200L
+5V_GENERAL
D203
5.6V
ADMC5M03200L
R233
470K
D221
5.6V
ADMC5M03200L
D219
30V
ADUC30S03010L
D214
5.6V
ADMC5M03200L
D213
5.6V
ADMC5M03200L
COMP_DET_2
COMP_Y_2
COMP_Pb_2
COMP_Pr_2
COMP_L_IN_2
AV2_CVBS_DET
AV2_CVBS_IN
AV2_L_IN
AV2_R_IN
COMP_DET
COMP_Y_1
COMP_Pb_1
COMP_Pr_1
COMP_L_IN
COMP_R_IN
AV1_CVBS_DET
AV1_CVBS_IN
AV_L_IN
AV_R_IN
DSUB_HSYNC
DSUB_VSYNC
DSUB_R
DSUB_G
DSUB_B
DDC_SCL/UART_RX
DDC_SDA/UART_TX
R243
75
R242
75
R241
75
R245
10K
C215
1000pF
50V
R251
12K
R252
12K
R248
10K
C216
1000pF
50V
COMP_R_IN_2
C228
100pF
50V
R244
75
1%
L203
BG2012B080TF
L204
BG2012B080TF
R250
12K
R246
10K
R247
10K
R249
12K
R209
75
R208
75
R211
75
R215
10K
R201
12K
C208
1000pF
50V
R216
10K
C209
1000pF
50V
R204
12K
C219
100pF
50V
R200
12K
R205
10K
C205
100pF
50V
R220
470K
L200
BG2012B080TF
C207
100pF
50V
R221
470K
R203
12K
R206
10K
L201
BG2012B080TF
D225
30V
ADUC30S03010L
D223
30V
ADUC30S03010L
R257
75
D229
5.6V
OPT
ADMC5M03200L
R260
22
D222
30V
ADUC30S03010L
R258
22
R266
10K
DSUB_DET
R256
75
C217
OPT
+5V_GENERAL
C218
OPT
JK203
KCN-DS-1-0089
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
R255
75
R263
0
OPT
D224
30V
ADUC30S03010L
R269
1K
C220
OPT
R254
0
D230
5.6V
OPT
ADMC5M03200L
R253
0
D226
30V
ADUC30S03010L
D231
5.6V
OPT
ADMC5M03200L
+5V_VGA
D211
30V OPT
ADUC30S03010L
R224
0
C201
0.1uF
C211
220pF
50V
C204
0.1uF
IR_PigyBox
C213
47pF
50V
DBG_TX
C200
0.33uF
R239
220
C210
0.1uF
16V
C203
0.1uF
R225
0
JK204
KCN-DS-1-0088
1
2
3
4
5
6
7
8
9
10
C214
47pF
50V
C202
0.1uF
IC200
MAX3232CDR
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
DOUT2
8
RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
C212
220pF
50V
R218
100
L202
BLM18PG121SN1D
R228
100
OPT
R223
4.7K
R238
220
R219
100
+3.3V_ST
D210
30V OPT
ADUC30S03010L
R222
4.7K
R226
100
OPT
DBG_RX
R270
0
R271
0
R261
470K
C221
100pF
50V
R262
470K
JK201
PEJ024-01
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
D228
5.6V
OPT
ADMC5M03200L
R268
12K
PC_L_IN
001:R32
R264
10K
D227
5.6V
OPT
ADMC5M03200L
R265
10K
R267
12K
C222
100pF
50V
PC_R_IN
001:R31
+5V_GENERAL
C223
0.1uF
50V
JK202
JST1223-001
1
GND
2
VCC
3
VINPUT
4
FIX_POLE
ZD200
OPT
SPDIF_OUT
001:W29
R259
1K
+3.3V
R229
0
R272
75
1%
L205
BLM21BB600SN1
L206
BLM21BB600SN1
L207
BLM21BB600SN1
C241
0.1uF
16V
COMPONENT1/2,A1,AV2
DO JAE GEUN
2   3
08.11.14
IN.OUT
Mstar(VENUS)
R,G,B PC&DDC
RxD
RS-232C
male
TxD
Serial Port
PC AUDIO
SPDIF OPTIC JACK
THE    SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS 
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE    SYMBOL MARK OF THE SCHEMETIC.
DBG_RX
R417
100
C448
4.7uF
16V
C442
4.7uF
16V
FE_TS_DATA[4]
COMP_Pb_2
SPDIF_OUT
FE_TUNER_SDA
R438
0
FE_TS_CLK
R403
47
+9V_GENERAL
R401
47
R415
100
FE_DEMOD_SDA
AV1_CVBS_IN
FE_TS_DATA[7]
C450
4.7uF
16V
C441
4.7uF
16V
R419
100
PC_R_IN
FE_DEMOD_SDA
+5V_VGA
R414
100
COMP_Y_1
R439
0
DBG_TX
AV1_CVBS_DET
AV_R_OUT
R440
0 OPT
IC405
TEA6420D
3
VS
2
CAPACITANCE
4
L1
1
GND
6
L3
5
L2
7
NC1
8
NC2
9
L4
10
L5
11
LOUT1
12
ROUT1
13
LOUT2
14
ROUT2
15
LOUT3
16
ROUT3
17
LOUT4
18
ROUT4
19
R5
20
R4
21
NC3
22
NC4
23
R3
24
R2
25
R1
26
ADDR
27
SCL
28
SDA
R420
100
COMP_Pr_2
AV_R_IN
R426
100
FE_TS_DATA[2]
PC_L_IN
FE_TS_VALID
AV2_CVBS_IN
R422
100
FE_TS_SYNC
TU_CVBS_IN
C444
22uF
16V
FE_DEMOD_SDA
R432
100
FE_DEMOD_SCL
R430
10K
TUNER_RESET
DDC_SCL/UART_RX
FE_TS_DATA[0]
DSUB_HSYNC
C449
4.7uF
16V
FE_TS_DATA[6]
R423
100
DSUB_B
COMP_Pb_1
C439
4.7uF
16V
COMP_L_IN_2
AV2_L_IN
FE_TS_DATA[1]
C445
0.1uF
50V
R402
47
COMP_DET
DSUB_VSYNC
C447
4.7uF
16V
COMP_DET_2
FE_SIF
FE_DEMOD_SCL
AV2_CVBS_DET
IC406
JLC1562BFEL
3 A2
2 A1
4 D0
1 A0
6 D2
5 D1
7 D3
8 Vss
9
D4
10
D5
11
D6
12
D7
13
VDAC
14
SCL
15
SDA
16
VDD
AV_R_OUT
R436
100
R434
100
C446
10uF
10V
FE_TS_DATA[5]
R433
100
AV_L_OUT
R428
22
R431
100
FE_TUNER_SCL
R421
100
COMP_L_IN
AV_L_IN
C438
4.7uF
16V
R429
22
DDC_SDA/UART_TX
C440
4.7uF
16V
R427
100
R424
100
FE_DEMOD_SCL
Control_Atten
R416
100
R418
100
+3.3V_ST
COMP_R_IN_2
C443
0.1uF
16V
FE_TS_DATA[3]
R435
100
AV2_R_IN
DSUB_R
COMP_Pr_1
R425
100
COMP_Y_2
DSUB_DET
VSB_RESET
C451
4.7uF
16V
AV_L_OUT
DSUB_G
COMP_R_IN
R404
47
R437
100
IR_PigyBox
R441
0
OPT
R442
0
OPT
+5V_GENERAL
+5V_GENERAL
+9V_GENERAL
+5V
C300
100uF
16V
L300
500
P401
GF05C-96S
NEED PART
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
43
43
44
44
45
45
46
46
47
47
48
48
49
49
50
50
51
51
52
52
53
53
54
54
55
55
56
56
57
57
58
58
59
59
60
60
61
61
62
62
63
63
64
64
65
65
66
66
67
67
68
68
69
69
70
70
71
71
72
72
73
73
74
74
75
75
76
76
77
77
78
78
79
79
80
80
81
81
82
82
83
83
84
84
85
85
86
86
87
87
88
88
89
89
90
90
91
91
92
92
93
93
94
94
95
95
96
96
97
97
HP_L_OUT
DTV/MNT_V_OUT
I/O EXPANSION
SC2_ID
ADDR 9A
HP_DET
DTV/MNT_L_OUT
TUNER JACK PIN
DTV/MNT_R_OUT
SC1_ID
SC1_R
REC_8
SC1_FB
ADDR 71
FE_BOOSTER_CTL
AUDIO SWITCH
TV_R_OUT
SC1_CVBS_IN
S_Y_IN
SC1_B
TV_L_OUT
SC2_CVBS_IN
HP_R_OUT
S_C_IN
AM_AUDIO(SIF)
SC1_G
BCM(VENUS)
08.11.5
3   3
Interface
DO JAE GEUN
Page of 32
Display

LG 32LH70 (CHASSIS:LA92D) Service Manual ▷ Download

RANDOM: