LG 55LM860V Service Manual page 45

T/C/S & H/NIM & T2/C TUNER(EU & CHINA)
TU6501
TU6500
TU6504
TDSH-T151F
TDSS-G151D TDSN-G351D
TW_H/NIM T/C_H/NIM_V T2/C_F/NIM_DEV
RF_S/W_CTL NC NC_1
1 1
RESET RESET
RESET
2 2
SCL SCL
SCL
3 3
SDA SDA
SDA
4 4
+B1[3.3V] +B1[3.3V]
+B1[3.3V]
5 5
SIF SIF SIF
6 6
+B2[1.8V] +B2[1.8V] +B2[1.8V]
7 7
CVBS CVBS CVBS
8 8
IF_AGC IF_AGC NC_2
9 9
DIF[P] DIF[P] NC_3
10 10
DIF[N] DIF[N] NC_4
11 11
+B3[3.3V]
12 12
+B4[1.23V]
SHIELD SHIELD
NC_5
GND
ERROR
SYNC
VALID
MCLK
D0
D1
D2
D3
D4
D5
D6
D7
28
SHIELD
BR_F/NIM_V CN_ATBM
TU6501-*1 TU6501-*2
TDSN-B051F TDSN-C251D
RF_S/W_CTL RF_S/W_CTL
1 1
RESET RESET
2 2
SCL SCL
3 3
SDA SDA
4 4
+B1[3.3V] +B1[3.3V]
5 5
SIF SIF
6 6
+B2[1.8V] +B2[1.8V]
7 7
AT_H/NIM_V CVBS CVBS
TU6500-*1 8 8
TDSS-H151F NC_1 NC_1
9 9
NC_2 NC_2
10 10
NC_3 NC_3
NC 11 11
1
+B3[3.3V] +B3[3.3V]
12 12
RESET
2 +B4[1.23V] +B4[1.23V]
13 13
SCL
3 14 NC_4 14 NC_4
SDA GND GND
4 15 15
ERROR ERROR
+B1[3.3V] 16 16
5
17 SYNC 17 SYNC
SIF
6 VALID VALID
18 18
+B2[1.8V]
7 MCLK MCLK
19 19
CVBS 20 D0 20 D0
8
D1 D1
IF_AGC 21 21
9
D2 D2
DIF[P] 22 22
10
23 D3 23 D3
DIF[N] D4 D4
11 24 24
D5 D5
25 25
12
D6 D6
26 26
D7 D7
SHIELD 27 27
28 28
SHIELD SHIELD
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.
Copyright © 2012 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
RF_SWITCH_CTL USE: T2/C,T/C,ATSC,DTMB.ISDB-T
TU6502
TU6503
TDSQ-H051F
TDSQ-G051D
close to TUNER
CHB_V CHB
T/C/S2_V
C6501
+5V[SPLITTER] N.C_1
10uF
1 1 1
10V
RESET
RESET
2 2 2
TU_SCL SCL
3 3 3
OPT
TU_SDA SDA
4 4 4
OPT
M_+3.3V +3.3V_TUNER
5 5 5
M_SIF SIF
6 6 6
M_+1.8V +1.8V_TUNER
7 7 7
C6551
100pF
M_CVBS CVBS
8 8 8
close to Tuner
M_IF_AGC T/C_IF_AGC
9 9 9
C6500
L9 ATSC
0.1uF
M_DIF[P] T/C_DIF[P]
10 10 10
16V
M_DIF[N] T/C_DIF[N]
11 11 11
S_3.3V N.C_2
12 12 12
C6509
0.1uF
S_1.8V N.C_3
13 13 13 16V
CHB
S_CVBS N.C_4
14 14 14 close to TUNER
GND_1 GND_1
15 15 15
SD_ERROR ERROR
16 16 16
SD_SYNC SYNC
17 17 17
SD_VALID VALID
18 18 18
SD_MCLK MCLK
19 19 19
SD_SERIAL_D0 D0
20 20 20
N.C_1 D1
21 21 21
N.C_2 D2
22 22 22
N.C_3 D3
23 23 23
N.C_4 D4
24 24 24
N.C_5 D5
25 25 25
N.C_6 D6
26 26 26
N.C_7 D7
27 27 27
Seperate GND for CHB
GND_2 GND_2
28
28
GND_3 GND_3
29 29
SD_1.23V_DEMOD +1.23V_S2_DEMOD
30 30
SD_RESET S2_RESET
31 31
SD_3.3V_DEMOD +3.3V_S2_DEMOD
32 32
N.C_8 S2_F22_OUTPUT
33 33
SD_SCL S2_SCL
34 34
SD_SDA S2_SDA
35 35
LNB
36
36
GND_4
37
38
SHIELD
SHIELD
T2/C/S2
CN_LG3921
TU6503-*1
TDSQ-G351D
TU6501-*3
TDSN-C051D
N.C_1
1
RESET
2
RF_S/W_CTL SCL
1 3
SDA
RESET 4
2 +B1[3.3V]
SCL 5
3 SIF
6
SDA +B2[1.8V]
4 7
CVBS
+B1[3.3V] 8
5 N.C_2
SIF 9
6 N.C_3
10
+B2[1.8V] N.C_4
7 11
+B3[3.3V]
CVBS 12
8 +B4[1.23V]
NC_1 13
9 N.C_5
14
NC_2 GND_1
10 15
ERROR
NC_3 16
11 SYNC
+B3[3.3V] 17
12 VALID
18
+B4[1.23V] MCLK
13 19
D0
NC_4 20
14 D1
GND 21
15 D2
22
ERROR D3
16 23
D4
SYNC 24
17 D5
VALID 25
18 D6
26
MCLK D7
19 27
GND_2
D0 28
20 GND_3
D1 29
21 +B5[1.23V]
30
D2 S2_RESET
22 31
+B6[3.3V]
D3 32
23 S2_F22_OUTPUT
D4 33
24 S2_SCL
34
D5 S2_SDA
25 35
LNB
D6 36
26 GND_4
38 37
27 D7
28
SHIELD
SHIELD
+3.3V_TU
OPT
+5V_TU
CHB R6511
L6508 100K
BR_TW_CN_TUNER
BLM18PG121SN1D C6520
R6500-*1
0.1uF
16V
1K 5%
MTK/L9_DVB/ATSC/NTSC
RF_SWITCH RF_SWITCH
RF_SWITCH_CTL
C6503 R6500 0
0.1uF BR_TW_CN_TUNER
R6508-*1
16V
R6508
1K 5%
100
MTK/L9_DVB/ATSC/NTSC
R6509
BR_TW_CN_TUNER BR_TW_CN_TUNER
I2C_SCL6 +5V_TU
C6508 33
C6508-*1 C6506-*1
18pF
R6510 68pF 68pF
R6516
50V 50V 50V
I2C_SDA6
470 R6518
C6506 33
+3.3V_TU
82
18pF close to TUNER
50V E
C6511 C6514
100pF
0.1uF
C6522
50V B
16V
Q6500
L6500 0.1uF 16V
C
R6515 MMBT3906(NXP)
BLM18PG121SN1D
4.7K
+1.8V_TU
C6550 C6505
0.1uF 0.1uF
50V 16V 16V
1. should be guarded by ground
100 T/C&AT&CHB
R6506 2. No via on both of them
IF_AGC
should be guarded by groumd 3. Signal Width >= 12mils
Signal to Signal Width = 12mils
IF_P
Ground Width >= 24mils
IF_N CHB OPT OPT
C6523 C6525 C6528
100pF 10uF
0.1uF
50V 6.3V
16V
T2/C&CN
L6502
+1.23V_TU
BLM18PG121SN1D
CHB
L6507 +1.8V_TU
C6507 C6510
C6513
C6516
100pF 1000pF 4700pF BLM18PG121SN1D
0.1uF
50V CN
50V 50V CN
16V
T2/C&CHB&CN
T2/C&CHB&CN
CHB_CVBS
CHB_ERR
CHB_SYNC
CHB_VAL
NOT_T/C&AT&CHB
CHB_CLK
AR6500 0
TU_TS_ERR
FE_TS_SYNC
TU_TS_VAL
FE_TS_CLK
CHB_DATA
NOT_T/C&AT&CHB FE_TS_DATA[0-7]
AR6501
0
FE_TS_DATA[0]
FE_TS_DATA[1]
FE_TS_DATA[2]
FE_TS_DATA[3]
FE_TS_DATA[4]
FE_TS_DATA[5]
FE_TS_DATA[6]
FE_TS_DATA[7]
AR6502
0
NOT_T/C&AT&CHB
DVB_S&CHB
+1.23V_TU
L6501
BLM18PG121SN1D
DVB_S&CHB
C6512 C6519 +3.3V_D_Demod
C6515
100pF 10uF
0.1uF
OPT
DVB_S&CHB 10V
R6512
DVB_S&CHB 2.2K
C6521
0.1uF
OPT
LNB_TX
R6503 22
C6517 DVB_S&CHB
18pF
50V
OPT
R6504 22
C6518
DVB_S&CHB
18pF
LNB_OUT 50V
OPT
CHB_CVBS
LNB_TX ERROR & VALID PIN
LNB_OUT CHB_ERR
ATV_OUT CHB_SYNC
CHB_VAL
CHB_CLK
CHB_DATA
/TU_RESET
ATV_OUT
+5V_TU
2012 perallel
R6520 R6521
because of derating
220
TUNER_SIF 220
TU_CVBS
E
B T/C_H/NIM
Q6501 T/C/S2
MMBT3906(NXP)
R6519
C
1K
T/C&AT&CHB DVB_S
OPT
NOT_DVB_S DVB_S&CHB
Not_L9_T2/C/S NOT_T/C&AT
+3.3V_D_Demod
T/C&AT&CHB
NOT_T/C&AT&CHB
Not_L9_T2/C/S
+3.3V_TU_IN
NOT_T/C&AT
C6533
10uF
+5V_NORMAL
16V
R6513
10
/S2_RESET
DVB_S&CHB
+3.3V_D_Demod
OPT
C6524 C6527
C6535
100pF 0.1uF
1uF
OPT
OPT
I2C_SCL4
I2C_SDA4
+3.3V_D_Demod
+3.3V_TU
NOT_T/C&AT
L6506
BLM18PG121SN1D
C6531
0.1uF
+3.3V_NORMAL
0.1uF
L9_T2/C/S
+3.3V_TU
IC6500
74LVC1G08GW
TU_TS_VAL
B VCC
1 5
L9_T2/C/S 0.1uF
C6544
16V
TU_TS_ERR A
2
R6526
GND Y
100
3 4
FE_TS_VAL
1/16W
5%
L9_T2/C/S
R6525
0
NOT_L9_T2/C/S
AT_H/NIM
CN BR
T2/C_F/NIM T2/C/S2 CHB
CN
NOT_T/C&AT DVB_S CHB T/C&AT&CHB
T2/C DVB_S&CHB DVB_S&CHB NOT_DVB_S NOT_T/C&AT
NOT_T/C&AT Not_L9_T2/C/S RF_SWITCH
T2/C&CN NOT_T/C&AT
T2/C NOT_T/C&AT&CHB
T2/C&CHB&CN T/C&AT&CHB
T2/C&CN T2/C&CHB&CN NOT_DVB_S
NOT_T/C&AT&CHB
NOT_DVB_S T2/C&CHB&CN H/NIM&CHB Not_L9_T2/C/S
Not_L9_T2/C/S Not_L9_T2/C/S
NOT_T/C&AT&CHB
L9_T2/C/S
T2 : Max 1.7A
else : Max 0.7A
NOT_T/C&AT
+1.23V_TU
IC6501
AP2132MP-2.5TRG1 [EP]
NOT_T/C&AT
R6527
R2 CN
20K
1 8
1% R6528-*1
C6540
GND 12K
PG NOT_T/C&AT
0.1uF
R6528
2 7 1/16W
11K
1% R1 1%
ADJ
EN R6529
R6523
10K
10K
3 6 1%
VOUT
VIN NOT_T/C&AT
2A
4 5
VCTRL NC
NOT_T/C&AT
EAN61387601 C6549
10uF
16V
Vout=0.6*(1+R1/R2)
CHB : Max 480mA
else : Max 240mA
+3.3V_TU
+1.8V_TU
IC6503
AZ1117BH-1.8TRE1
NOT_T/C&AT
NOT_T/C&AT
IN OUT
3 2
C6538 C6542
10uF 0.1uF
1 R6531
10V
1
ADJ/GND
C6546 C6548
10uF 0.1uF
10V 16V
Close to the tuner
BR_TW_CN_TUNER
465mA(MAX)
R6532-*1
BLM18PG121SN1D 150mA(MAX)
120-ohm
+3.3V_TU
+5V_TU
+5V_NORMAL
MTK/L9_DVB/ATSC/NTSC
L6503
R6532
BLM18PG121SN1D
0
C6532 C6534
C6526 C6529
C6530 C6536 C6539
0.1uF 22uF
22uF
0.1uF 22uF 0.1uF
16V 10V
16V 10V 16V
10V
Close to the tuner
Close to the tuner
TUNER 2011.11.21
65
LGE Internal Use Only
16V