Read LG 32LD650 (CHASSIS:LT03B) 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.
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.
+3.3V_TU
IF_AGC_SEL
Q2601
ISA1530AC1
E
B
C
R2604
0
INT_DEMOD
TU_SIF
R2602
0
R2623
10K
10K
C2600
100pF
50V
100pF
50V
R2608
10K
10K
OPT
C2605
100pF
50V
100pF
50V
R2621
10K
C2607
0.1uF
16V
16V
LNA2_CTL/BOSTER_CTL
C2610
0.1uF
16V
R2606
100
100
Q2602
ISA1530AC1
E
B
C
R2622
4.7K
4.7K
R2615
0
R2600
0
OPT
R2612
100
NIM
TU_CVBS
C2603
0.1uF
16V
0.1uF
16V
+5V_TU
IF_P_EXT
C2608
0.1uF
16V
16V
OPT
R2611
100
NIM
C2606
0.1uF
16V
16V
C2602
0.1uF
16V
R2616
200
R2605
0
TUNER_RESET
+5V_TU
Q2600
2SC3052
OPT
E
B
C
C2604
100pF
50V
100pF
50V
IF_AGC
R2626
82
82
R2601
0
C2609
10uF
10V
10uF
10V
OPT
C2613
0.01uF
25V
0.01uF
25V
R2607
100K
+1.2V_TU
+5V_TU
Q2604
2SC3052
E
B
C
+5V_TU
L2600
BLM18PG121SN1D
R2613
0
Q2605
ISA1530AC1
E
B
C
IF_N_EXT
TU_IF_N_BCM
C2601
0.1uF
16V
0.1uF
16V
+3.3V_TU
R2625
470
TU_IF_P_BCM
R2619
200
R2603
0
INT_DEMOD
R2614
1K
OPT
RF_SWITCH_CTL
R2618
2.2K
2.2K
C2622
0.1uF
16V
+3.3V_TU
C2626
22uF
10V
C2620
0.1uF
0.1uF
16V
C2625
22uF
10V
+3.3V_NORMAL
L2603
BLM18PG121SN1D
+5V_TU
C2623
0.1uF
16V
C2621
0.1uF
16V
+5V_NORMAL
L2604
CIC21J501NE
R2641
510
R2632
3.9K
1/16W
5%
TU_IF_N_1
R2624
3.9K
1/16W
5%
R2642
510
READY
R2633
2K
2K
1/16W
5%
5%
TU_IF_AGC_2
TU_IF_P_1
C2629
0.01uF
A3.3V
R2638
220
220
1/16W
5%
5%
TU_IF_N_BCM
C2631
0.01uF
TU_IF_AGC_BCM
C2632
0.01uF
+5V_NORMAL
TU_IF_P_BCM
C2627 0.01uF
TU_IF_AGC_1
C2614
0.1uF
16V
0.1uF
16V
+1.2V_TU
C2615
10uF
10V
10uF
10V
R2627
1.2K
1.2K
IC2600
AZ1117H-ADJTRE1(EH11A)
2
OUTPUT
3
INPUT
1
ADJ/GND
GND
R2628
10
C2616
0.1uF
16V
0.1uF
16V
R2629
1
+3.3V_TU
C2633
0.1uF
16V
0.1uF
16V
TU2600
TDTR-T055F
Taiwan/Brazil_V
14
+B3[3.3V]
13
+B2[1.2V]
5
AS
12
GND
11
VIDEO
2
BST_CNTL
10
NC
4
NC[RF_AGC]
1
ANT_PWR[OPT]
17
DIF_1[N]
9
SIF
8
NC(IF_TP)
3
+B[5V]
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2[P]
19
SHIELD
TU2600-*3
TDTJ-S031D
TDTJ-S031D
14
3.3V
13
1.2V
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
19
SHIELD
TU2600-*4
TDTJ-S001D
TDTJ-S001D
14
3.3V
13
1.2V
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
19
SHIELD
R2643
1K
OPT
R2644
0
OPT
TU2600-*5
TDTR-T035F
TDTR-T035F
Taiwan/Brazil_H
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]
19
SHIELD
TU2600-*1
TDVJ-H031F
TDVJ-H031F
Latin_Tuner_V
14
3.3V
13
1.2V
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
19
SHIELD
TU2600-*2
TDVJ-H001F
TDVJ-H001F
Latin_Tuner_H
14
3.3V
13
1.2V
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
19
SHIELD
L2605
BLM18PG121SN1D
C2634
10uF
10V
10uF
10V
C2635
10uF
10V
10uF
10V
C2636
22uF
10V
C2637
0.1uF
16V
SDA0_3.3V
C2638
20pF
50V
20pF
50V
TUNER_I2C_LPF
L2609-*1
33
33
NON_TUNER_I2C_LPF
C2639
20pF
50V
20pF
50V
TUNER_I2C_LPF
L2610-*1
33
33
NON_TUNER_I2C_LPF
C2611
62pF
50V
62pF
50V
TUNER_I2C_LPF
L2609
TUNER_I2C_LPF
270nH
SCL0_3.3V
C2612
62pF
50V
62pF
50V
TUNER_I2C_LPF
L2610
TUNER_I2C_LPF
270nH
C2612-*1
18pF
50V
18pF
50V
NON_TUNER_I2C_LPF
C2611-*1
18pF
50V
18pF
50V
NON_TUNER_I2C_LPF
C2624
10uF
16V
Tuner (Half Nim)
GP2_BCM
Ver. 1.0
28
CAN H-NIM/NIM TUNER for TAIWAN
close to TUNER
OPTION : RF AGC
close to TUNER
60mA
200mA
IF AGC FILTER
IF FILTER OPTION
CAUTION : Closed BCM IC(IC100)
R2
R1
V_OUT=V_REF(1+R2/R1)
For ESD
close to TUNER
close to TUNER
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