LG 32LH301C (CHASSIS:LD91A) 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.
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.
TUNER
FE_TS_DATA[5]
FE_TS_DATA[6]
FE_TS_DATA[1]
FE_TS_DATA[0]
FE_TS_DATA[3]
FE_TS_CLK
FE_TS_DATA[2]
FE_TS_DATA[4]
FE_TS_SYN
FE_TS_DATA[7]
FE_TS_VAL
+5V_GENERAL
+3.3V_TUNER
+5V_GENERAL
FE_BOOSTER_CTL
/FE_RESET
FE_TS_DATA[0-7],FE_TS_CLK,FE_TS_VAL,FE_TS_SYN
FE_DEMOD_SDA
+1.2V_TUNER
Q1200
2SC3052
E
B
C
FE_AGC_SPEED_CTL
FE_TS_ERR
Q1203
2SC3052
E
B
C
+3.3V_TUNER
FE_TUNER_SDA
FE_SIF
+5V_GENERAL
FE_DEMOD_SCL
FE_TUNER_SCL
FE_TS_VAL
IC1201
NL17SZ08DFT2G
3
2
4
1
5
FE_TS_ERR
+3.3V_TUNER
FE_TS_VAL_ERR
GND
FE_TS_VAL
FE_VMAIN
+5V_GENERAL
L1202
MLB-201209-0120P-N2
L1201
MLB-201209-0120P-N2
L1204
MLB-201209-0120P-N2
C1212
47uF
16V
47uF
16V
R1238
0
R1241
200
R1240
200
R1239
1K
OPT
R1205
0
R1208
47
R1207
47
C1205
47pF
50V
OPT
47pF
50V
OPT
C1206
47pF
50V
OPT
47pF
50V
OPT
C1220
0.1uF
0.1uF
16V
C1215
0.1uF
16V
16V
Q1201
ISA1530AC1
E
B
C
Q1205
ISA1530AC1
E
B
C
Q1202
ISA1530AC1
E
B
C
C1209
68uF
10V
10V
R1223
0
C1222
0.01uF
25V
0.01uF
25V
C1208
0.1uF
16V
0.1uF
16V
OPT
C1210
0.1uF
16V
16V
C1219
0.1uF
16V
C1214
0.1uF
16V
0.1uF
16V
C1227
0.1uF
16V
C1200
0.1uF
16V
C1221
0.1uF
0.1uF
16V
R1229
10
R1224
100
100
R1225
100K
C1216
100pF
50V
C1207
100pF
50V
100pF
50V
R1209
10K
10K
R1231
10K
R1232
10K
10K
R1230
2.2K
2.2K
R1222
33
R1221
33
33
R1226
4.7K
4.7K
R1213 47
R1218 47
R1211 47
R1210 47
R1219 47
R1216 47
R1220 47
R1217 47
R1214 47
R1212 47
R1215 47
R1245
47
R1227
470
C1217
47pF
50V
47pF
50V
C1218
47pF
50V
47pF
50V
R1228
82
82
TU1200
TDFW-G235D
TUNER
1
ANT[5V]
2
BB[CTR]
3
GND_1
4
+B[5V]
5
NC_1
6
RF_AGC
7
TP[VT]
8
NC_2
9
GND_2
10
SDA_T
11
SCL_T
12
AIF_1
13
NC_3
14
GND
15
VIDEO
16
NC_4
17
SIF
18
SDA
19
SCL
20
RST
21
3.3V
22
1.2V
23
ERR
24
MCL
25
D7
26
D6
27
D5
28
D4
29
D3
30
D2
31
D1
35
SHIELD
32
D0
33
VAL
34
SYNC
Tuner PLL : 0xC2
Analog Tuner : 0x86
Digital Tuner : 0x1E
10 11
TUNER
OPTION : RF AGC
DVB-CI DETECT
DVB-T/C : 1.2V(MICRONAS demod)
DVB-T : 1.8V(INTEL demod)
2009.03.25
EAX60686904
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.
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.
LVB_3M
LVB_0M
LVB_1P
LVB_2M
LVB_CKP
LVB_CKM
LVB_4P
LVB_0P
LVB_2P
PANEL_POWER
LVB_1M
LVB_4M
LVB_3P
+3.3V
SDA_SUB/AMP
IR
+5V_ST
SCL_SUB/AMP
KEY1
KEY2
+3.3V_ST
LED_ON/LED_R
R1318
100
100
R1317
100
100
C1314
0.1uF
16V
C1305
0.1uF
C1310
0.1uF
16V
12PIN IR
C1307
0.1uF
C1306
0.1uF
0.1uF
16V
19~22/26LH2000
C1308
0.1uF
16V
0.1uF
16V
19~22/26LH2000
C1312
1000pF
50V
8PIN IR
C1315
1000pF
50V
C1313
1000pF
50V
8PIN IR
C1311
1000pF
50V
12PIN IR
C1309
100pF
100pF
50V
ZD1305
5.6V
AMOTECH
8PIN IR
ZD1303
5.6V
AMOTECH
ZD1300
5.6V
AMOTECH
19~22/26LH2000
ZD1302
5.6V
AMOTECH
ZD1301
5.6V
AMOTECH
19~22/26LH2000
ZD1306
5.6V
AMOTECH
8PIN IR
ZD1304
5.6V
AMOTECH
D1300
5.6V
CDS3C05HDMI1
12PIN IR
D1301
5.6V
CDS3C05HDMI1
12PIN IR
LVA_CKM
LVA_3P
LVA_0P
LVA_4M
LVA_2M
LVA_0M
LVA_1M
LVA_2P
LVA_1P
LVA_3M
LVA_CKP
LVA_4P
MEMC_RESET
MEMC_SDA 1:L21
MEMC_SCL 1:L21
R1370
3.3K
OPT
R1379
0
LVDS_SEL_GND
R1371
0
BIT_SEL_GND(8bit)
R1366
22
R1365
22
LVDS_SEL
R1367
22
OPT
R1373
0
OPT
BIT_SEL
C1303
220uF
16V
OPT
OPT
WARM_LED_ON/LED_W
LVB_CKP
LVB_CKM
LVB_1M
LVB_0M
LVB_3M
LVB_2M
LVB_0P
LVB_3P
LVB_2P
LVB_1P
LVA_2P
LVA_3P
LVA_2M
LVA_3M
LVA_CKP
LVA_CKM
LVA_1M
LVA_1P
LVA_0M
LVA_0P
+3.3V
OPC_EN
OPC_OUT
1:V17;8:M8
PWM_DIM
+3.3V
+3.3V
L1300
BLM18PG121SN1D
L1301
BLM18PG121SN1D
L1302
BLM18PG121SN1D
19~22/26LH2000
L1303
BLM18PG121SN1D
L1304
BLM18PG121SN1D
19~22/26LH2000
L1305
BLM18PG121SN1D
8PIN IR
L1306
BLM18PG121SN1D
8PIN IR
L1307
BLM18PG121SN1D
L1308
BLM18PG121SN1D
12PIN IR
P1304
12507WS-12L
12PIN IR
1
SCL
2
SDA
3
GND
4
KEY1
5
KEY2
6
5V_ST
7
GND
8
WARM_ST
9
IR
10
GND
11
3.3V
12
PWR_ON
13
IR_OUT
+5V_ST
+5V_ST
Q1301
2SC3052
OPT
E
B
C
Q1300
2SC3052
OPT
E
B
C
P1305
12507WS-08L
8PIN IR
1
KEY1
2
KEY2
3
GND
4
5V_ST
5
GND
6
IR
7
LED_B
8
LED_R
9
.
R1322
100
100
12PIN IR
R1321
100
100
12PIN IR
R1325
4.7K
12PIN IR
C1302
0.1uF
16V
12PIN IR
R1319
4.7K
R1320
4.7K
C1300
0.1uF
0.1uF
16V
R1313
OPT
R1315
OPT
R1312
OPT
R1314
OPT
R1305
100
100
C1301
1000pF
50V
R1302
10K
OPT
R1300
22
OPT
R1304
47K
OPT
R1303
47K
OPT
OPT
R1301
47K
OPT
OPT
P1301
TF05-51S
FHD_LVDS_WAFER
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
49
50
51
52
P1300
FF10001-30
LVDS_HD_19~22
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
P1302
FF10001-30
LVDS_HD_26~42
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
R1378
3.3K
LVDS_SEL_PULLUP
R1372
510
OPC
P1303
12507WR-03L
19~22/26LH2000
1
KEY1
2
KEY2
3
GND
4
R1323
100
12PIN IR
R1306
10K
12PIN IR
LVA_CKP
LVB_CKP
LVB_CKM
LVB_0M
LVA_CKM
LVB_1P
LVA_3P
LVB_0P
LVA_0P
LVB_2P
LVA_2M
LVB_1M
LVA_0M
LVA_1M
LVA_2P
LVB_3P
LVA_1P
LVA_3M
LVB_2M
LVB_3M
R1612
0
EXCEPT_22LU50
R1613
0
EXCEPT_22LU50
P1306
FF10001-30
LVDS_MNT_HD_19~22
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
11 11
MODULE&CTL
Module
CONTROL
IR & LED
close to wafer
Zener Diode is
V4 OPTION
OPC_OUTPUT
OPC_EABLE
External VBR
Small
X
8BIT
R1370
10BIT
X
R1371
0
R1378
HD
O
FHD
R1379
X
O
2009.03.25
EAX60686904
X
X
Block Diagram
Block Diagram
RGB
COMPONENT
F-SCART
AV3
BUF_TS_CLK/ERR/SYN/DATA[0]
AV_CVBS_IN
DDR2 SDRAM
(1Gb)
IC300
IC300
NAND Flash
HYNIX
IC102
USB
Digital amp
(NTP3100L)
IC701
COMP_Y/Pb/Pr
SC1_CVBS_IN
SC2_CVBS_IN
I2S
DSUB_ R/G/B
Tuner
(TDFW-G235D1)
TU1000
LCD Panel
- 19/22/26/32/37/42LH2000
- 32/37/42/47LH3000
- 32/37/42/47LH3000
- 32/37/42/47LH4000
74LVC541A
Buffer
IC502
CI Slot
(P500)
74LCX244
Buffer
IC501
PCM_A[0:7]
FE_VMAIN
PCM_A[0:7]
SDDR_D[0:15]
DDR2 SDRAM
(512Mb)
IC301
TDDR_D[0:15]
SDDR_A[0:12]
Mstar S6
LGE3368A
(No-DVIX)
(IC100)
MP6211DH
USB Power
IC402
USB Power
FE_TS_DATA[0:7]
CI_MDI[0:7]
H-SCART
SC1_R/G/B
SC1/2_L/R_IN,
FE_AM_AUDIO,AV_L/R_IN,
COMP_L/R_IN, PC_L/R_IN
FE_AM_AUDIO,AV_L/R_IN,
COMP_L/R_IN, PC_L/R_IN
FE_ VOUT
DTV/MNT_VOUT
TDDR_A[0:12]
TPA6110A
IC700
Head
Phone
RS-232C
MAX3232CDR
IC403
SPDIF
SPDIF_OUT
DSUB_H/VSYNC
HP_L/ROUT
L/R
CI_TS_DATA[0:7]
PCM_D[0:7]
CI_DATA[0:7]
CI_ADDR[0:7]
AUDIO IN
DGB_TX/RX
HPD1/2/3, HDMI_CEC
TMDS[0:7] ( Data, Clock (+/-))
USB_DM/DP
EEPROM
AT24C512
(IC105)
EEPROM
AT24C512
(HDCP)IC107
I2C
LVDS (10 bit)
Serial Flash
IC104
For Triton
Serial Flash
IC103
For Boot
KIA7027
(IC101)
Voltage Detector
74LX1G14C
(IC108)
Schmitt Trigger
Reset
5V_HDMI_1/2/3
HDMI
1/2/3
1/2/3
Block diagram
Main Block
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