Read LG 42PJ350-SA (CHASSIS:PB02A) Service Manual 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.
100pF 50V
C1325
TUNER_RESET
MLB-201209-0120P-N2
L1303
100K
R1311
FE_BOOSTER_CTL
82
R1334
47pF
50V
C1312
1K
READY
R1327
ISDB_IF_AGC
2SC3052
Q1307
E
B
C
+5V_TU
0.1uF
16V
C1316
RF_SWITCH_CTL
TUNER_CVBS
10K
R1344
100 R1316
82
R1332
0.1uF
16V
C1310
+5V_TU
1K
READY
R1326
+5V_TU
TU_SDA
3K
R1318
100 R1315
+1.2V_DE
TU_SCL
ISA1530AC1
Q1304
E
B
C
0.1uF
16V
C1302
0.01uF
25V
C1311
47pF
50V
C1313
ISA1530AC1
Q1306
E
B
C
100
R1309
0
R1324
READY
TUNER_SIF
ISA1530AC1
Q1305
E
B
C
10K
R1343
3K
R1320
1K
R1322
2.2K
R1321
4.7K
R1325
TUNER_IF_P
TUNER_IF_N
L1302
0.1uF
C1300
22uF
16V
C1301
+5V_TU
1200pF
50V
C1309
1200pF
50V
C1305
1200pF
50V
C1314
+3.3V
0.1uF
C1306
L1301
L1300
0.1uF
C1303
+3.3V
+3.3V
4.7uF
10V
C1304
4.7uF
10V
C1307
4.7uF
10V
C1308
TDTR-T035F
TU1300
14
+B3[3.3V]
13
+B2[1.2V]
5
NC_2
12
GND
11
VIDEO
2
BST_CTL
10
NC_4
4
NC_1[RF_AGC]
1
RF_S/W_CTL
17
DIF_1[N]
9
SIF
8
NC_3
3
+B1[5V]
16
IF/AGC
7
SDAT
6
SCLT
15
RESET
18
DIF_2[P]
SHIELD
19
470
R1329
100
R1330
1 3 1 3
LGIT CAN TUNER
C l o s e t o t h e t u n e r
CH_6
P u l l - u p c a n ’ t b e a p p l i e d
because of MODEL_OPT_2
< LGIT CAN H/N TUNER >
LGIT CAN TUNER
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