LG 47GA7800-CB (CHASSIS:LC37G) Service Manual ▷ View online
THERMAL
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.
R6403
OPT
4.7K
HP_ROUT
+3.3V_NORMAL
C6400
1uF
10V
1uF
10V
HP_OUT
L6400
120-ohm
HP_OUT
BLM18PG121SN1D
SIDE_HP_MUTE
R6404
4.7K
4.7K
HP_OUT
C6401
1uF
1uF
10V
HP_OUT
C6405
0.1uF
16V
HP_OUT
C6402
1uF
10V
1uF
10V
HP_ROUT_MAIN
R6400
4.7K
HP_OUT
R6405
1K
1K
HP_OUT
C6406
2.2uF
10V
2.2uF
10V
HP_OUT
HP_LOUT
Q6400
MMBT3904(NXP)
E
B
C
HP_LOUT_MAIN
R6401
OPT
R6402
4.7K
HP_OUT
+3.3V_NORMAL
C6404
2.2uF
10V
2.2uF
10V
HP_OUT
C6407
2.2uF
10V
HP_OUT
C6403
10uF
10V
10V
HP_OUT
HP_AMP_MUTE
R6406
10
10
1/16W
5%
5%
R6407
10
10
1/16W
5%
5%
C6408
0.47uF
16V
0.47uF
16V
HP_OUT
C6409
0.47uF
16V
0.47uF
16V
HP_OUT
IC6400
TPA6132A2
TPA6132A2
EAN60724701
HP_OUT
3
INR+
2
INL+
4
INR-
1
INL-
5
OUTR
6
G0
7
G1
8
HPVSS
9
CPN
10
PGND
11
CPP
12
HPVDD
13
EN
14
VDD
15
SGND
16
OUTL
17
[EP]
2011.06.29
HEADPHONE AMP
61
EARPHONE AMP
From Micom
Close to the IC
Low Pass Filter
Place Near jack Side
THERMAL
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.
SIGN1100120
SIGN1100121
SIGN1100122
SIGN1100123
SIGN1100124
SIGN1100125
SIGN1100126
SIGN1100129
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]
R6528
11K
1%
11K
1%
TU_CHINA
L6507
BLM18PG121SN1D
TU_PIP_JAPAN
+1.23V_D_Demod
C6514
100pF
50V
50V
+3.3V_D_Demod
C6515
0.1uF
C6554
100pF
50V
100pF
50V
+1.8V_TU
I2C_SCL6
C6548
0.1uF
16V
0.1uF
16V
R6534
0
OPT
+3.3V_NORMAL
C6520
0.1uF
16V
C6506
68pF
50V
68pF
50V
OPT
+3.3V_TU
R6529
10K
1%
10K
1%
TU_CHINA
L6508
BLM18PG121SN1D
TU_PIP_JAPAN
+1.23V_D_Demod
+3.3V_TU
TU_CVBS
L6500
BLM18PG121SN1D
R6531
1
1
IC6503
AZ1117BH-1.8TRE1
1
ADJ/GND
2
OUT
3
IN
R6510
33
FE_TS_SYNC
FE_TS_VAL
R6509
33
R6527
20K
1%
20K
1%
TU_CHINA
C6546
10uF
10V
10uF
10V
C6516
0.1uF
16V
I2C_SDA6
FE_TS_DATA[0-7]
/TU_RESET1
L6502
BLM18PG121SN1D
TU_F-NIM
IC6501
AP2132MP-2.5TRG1
EAN61387601
TU_CHINA
3
VIN
2
EN
4
VCTRL
1
PG
5
NC
6
VOUT
7
ADJ
8
GND
9
[EP]
C6538
10uF
10uF
10V
L6503
BLM18PG121SN1D
C6508
68pF
50V
68pF
50V
OPT
R6533
0
OPT
+3.3V_TU
C6530
0.1uF
16V
R6506
100
T/C&AT&CHB
L6501
BLM18PG121SN1D
C6535
1uF
1uF
TU_CHINA
+3.3V_TU
+5V_NORMAL
LNB_TX
IF_AGC
+3.3V_D_Demod
C6550
0.1uF
0.1uF
16V
0.1uF
C6540
TU_CHINA
+1.8V_TU
FE_TS_CLK
+3.3V_TU
Q6500
MMBT3906(NXP)
E
B
C
C6542
0.1uF
0.1uF
R6515
4.7K
R6508
100
100
NOT_BR_TW_CN_TUNER
Q6501
MMBT3906(NXP)
E
B
C
C6500
0.1uF
16V
16V
LG1145_ATSC
RF_SWITCH_CTL
C6529
22uF
10V
+1.23V_D_Demod
R6516
470
IF_N
R6513
10
+3.3V_TU
R6523
10K
10K
TU_CHINA
+1.8V_TU
+3.3V_TU
I2C_SCL4
+3.3V_TU
R6518
82
82
IF_P
C6531
0.1uF
0.1uF
C6526
0.1uF
16V
LNB_OUT
/S2_RESET
I2C_SDA4
TUNER_SIF
C6533
10uF
10V
TU_CHINA
C6549
10uF
10V
TU_CHINA
R6520
200
R6521
200
TU6503-*1
TDSQ-G351D
TU_T2/C/S2
1
N.C_1
2
RESET
3
SCL
4
SDA
5
+B1[3.3V]
6
SIF
7
+B2[1.8V]
8
CVBS
9
N.C_2
10
N.C_3
11
N.C_4
12
+B3[3.3V]
13
+B4[1.23V]
14
N.C_5
15
GND_1
16
ERROR
17
SYNC
18
VALID
19
MCLK
20
D0
21
D1
22
D2
23
D3
24
D4
25
D5
26
D6
27
D7
28
GND_2
29
GND_3
30
+B5[1.23V]
31
S2_RESET
38
SHIELD
32
+B6[3.3V]
33
S2_F22_OUTPUT
34
S2_SCL
35
S2_SDA
36
LNB
37
GND_4
R6504
33
R6503
33
TU6501
TDSN-G351D
TDSN-G351D
1
NC_1
2
RESET
3
SCL
4
SDA
5
+B1[3.3V]
6
SIF
7
+B2[1.8V]
8
CVBS
9
NC_2
10
NC_3
11
NC_4
12
+B3[3.3V]
13
+B4[1.23V]
14
NC_5
15
GND
16
ERROR
17
SYNC
18
VALID
19
MCLK
20
D0
21
D1
22
D2
23
D3
24
D4
25
D5
26
D6
27
D7
28
SHIELD
A1
A1
B1
B1
TU6502
TDSQ-H051F
1
+5V[SPLITTER]
2
RESET
3
TU_SCL
4
TU_SDA
5
M_+3.3V
6
M_SIF
7
M_+1.8V
8
M_CVBS
9
M_IF_AGC
10
M_DIF[P]
11
M_DIF[N]
12
S_3.3V
13
S_1.8V
14
S_CVBS
15
GND_1
16
SD_ERROR
17
SD_SYNC
18
SD_VALID
19
SD_MCLK
20
SD_SERIAL_D0
21
N.C_1
22
N.C_2
23
N.C_3
24
N.C_4
25
N.C_5
26
N.C_6
27
N.C_7
28
GND_2
29
GND_3
30
SD_1.23V_DEMOD
31
SD_RESET
36
SHIELD
32
SD_3.3V_DEMOD
33
N.C_8
34
SD_SCL
35
SD_SDA
A1
A1
B1
B1
TU6503
TDSQ-G051D
1
N.C_1
2
RESET
3
SCL
4
SDA
5
+3.3V_TUNER
6
SIF
7
+1.8V_TUNER
8
CVBS
9
T/C_IF_AGC
10
T/C_DIF[P]
11
T/C_DIF[N]
12
N.C_2
13
N.C_3
14
N.C_4
15
GND_1
16
ERROR
17
SYNC
18
VALID
19
MCLK
20
D0
21
D1
22
D2
23
D3
24
D4
25
D5
26
D6
27
D7
28
GND_2
29
GND_3
30
+1.23V_S2_DEMOD
31
S2_RESET
38
SHIELD
32
+3.3V_S2_DEMOD
33
S2_F22_OUTPUT
34
S2_SCL
35
S2_SDA
36
LNB
37
GND_4
A1
A1
B1
B1
R6535
0
DVB_S
TU_GND_B
TU_GND_A
TU_GND_B
TU_GND_A
TU_GND_A
TU_GND_B
TU_GND_A
TU_GND_B
TU_GND_B
TU_GND_A
R7366
0
NON_CHINA
R7367
0
NON_CHINA
R7368
0
NON_CHINA
R7369
0
NON_CHINA
TU_PIN3
TU_PIN4
+3.3V_TU
TU_PIN6
+3.3V_TU
TU_PIN4
TU_PIN6
TU_PIN3
TU_PIN7
TU_PIN7
R6508-*1
1K
5%
BR_TW_CN_TUNER
R6501
100
100
TU_CHANA
TU_PIN2
TU_PIN2
/TU_RESET1
TU_GND_B
TU_GND_A
TU6508
TDSN-T751F
TDSN-T751F
TU_TW
1
RF_S/W_CTL
2
RESET
3
SCL
4
SDA
5
+B1[3.3V]
6
SIF
7
+B2[1.8V]
8
CVBS
9
IF_AGC
10
DIF[P]
11
DIF[N]
12
NC_1
13
NC_2
14
NC_3
15
GND
16
NC_4
17
NC_5
18
NC_6
19
NC_7
20
NC_8
21
NC_9
22
NC_10
23
NC_11
24
NC_12
25
NC_13
26
NC_14
27
NC_15
SHIELD
59
LNA_CTRL1
57
LNA_CTRL2
58
A1
A1
B1
B1
TU6509
TDSW-B651F
TU_BR
1
+B1(3.3V)_S/P
2
RESET
3
SCL
4
SDA
5
+B1[3.3V]
6
SIF
7
+B2[1.8V]
8
CVBS
9
NC_2
10
NC_3
11
NC_4
12
+B3[3.3V]
13
+B4[1.23V]
14
NC_5
15
GND_1
16
M_ERROR
17
M_SYNC
18
M_VALID
19
M_MCLK
20
M_D0
21
M_D1
22
M_D2
23
M_D3
24
M_D4
25
M_D5
26
M_D6
27
M_D7
28
GND_2
29
GND_3
30
+B5[1.23V]
31
D_RESET
32
+B6[3.3V]
33
NC_6
34
D_SCL
35
D_SDA
GND_4
38
GND_5
39
S_ERROR
40
S_SYNC
41
S_VALID
42
S_MCLK
43
S_D7
44
NC_7
45
NC_8
46
NC_9
47
NC_10
48
NC_11
49
RF_S/W_CTRL
50
NC_12
51
SHIELD
59
A1
A1
B1
B1
RF_SWITCH_CTL_50
RF_SWITCH_CTL_50
R6500
1K
NON_CHINA
C6502
0.1uF
16V
C6504
18pF
50V
18pF
50V
C6505
18pF
50V
18pF
50V
/S2_RESET
+3.3V_D_Demod
L6506
BLM18PG121SN1D
C6507
10uF
10uF
10V
C6501
10uF
10V
10uF
10V
TU6500-*1
TDSS-G151D
TDSS-G151D
T/C_H/NIM_V
5
+B1[3.3V]
11
DIF[N]
2
RESET
10
DIF[P]
4
SDA
1
NC
9
IF_AGC
8
CVBS
3
SCL
7
+B2[1.8V]
6
SIF
12
SHIELD
A1
A1
B1
B1
TU6500
TDSS-H651F(B)
TDSS-H651F(B)
TU_US
5
+B1[3.3V]
11
DIF[N]
2
RESET
10
DIF[P]
4
SDA
1
NC
9
IF_AGC
8
CVBS
3
SCL
7
+B2[1.8V]
6
SIF
12
SHIELD
A1
A1
B1
B1
C6537
1000pF
630V
TU_CHANA
C6536
1000pF
630V
1000pF
630V
TU_CHANA
R6511 1K
TU_CHINA
C6503
0.1uF
16V
0.1uF
16V
TU6505
TDSM-C651D(B)
TU_CHINA
8
CVBS
9
NC_1
10
NC_2
11
NC_3
12
+B3[3.3V]
13
+B4[1.23V]
14
DEMOD_RESET
15
GND
16
NC_4
17
SYNC
18
VALID
19
MCLK
20
D0
21
D1
22
D2
23
D3
24
D4
25
D5
26
D6
27
D7
RF_S/W_CTL
50
RESET
51
SHIELD
59
SIF
55
+B1[3.3V]
54
SDA
53
SCL
52
+B2[1.8V]
56
A1
A1
A2
A2
B1
B1
B2
B2
65
TUNER
2012.03.08
R2
T2 : Max 1.7A
else : Max mA
should be guarded by groumd
2012 perallel
because of derating
because of derating
CHB : Max mA
mA(MAX)
2. No via on both of them
Ground Width >= 24mils
2A
Close to the tuner
close to Tuner
close to TUNER
Vout=0.6*(1+R1/R2)
Close to the tuner
Signal to Signal Width = 12mils
R1
3. Signal Width >= 12mils
else : Max 0.7A
1. should be guarded by ground
GND seperation for CHINA tuner
THERMAL
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.
SIGN1100135
SIGN1100136
SIGN1100137
SIGN1100138
SIGN1100139
SIGN1100140
SIGN1100142
SIGN1100143
I2C_SCL4
LNB_OUT
R6903
36K
36K
1/16W
1%
1%
LNB
C6904
0.1uF
50V
0.1uF
50V
LNB
C6910
0.1uF
50V
0.1uF
50V
LNB
D6903-*1
40V
LNB_SX34
D6904-*1
40V
LNB_SX34
+12V
C6905
10uF
25V
10uF
25V
LNB
C6903
0.01uF
50V
LNB
C6906
10uF
25V
10uF
25V
LNB
A_GND
C6907
10uF
25V
10uF
25V
LNB
LNB_TX
R6901
33
LNB
D6900
LNB
A_GND
C6911
0.22uF
LNB
L6900
33UH
SP-7850_33
LNB
R6900
2.2K
1W
2.2K
1W
LNB
D6901
30V
MBR230LSFT1G
LNB
I2C_SDA4
C6909
10uF
25V
10uF
25V
LNB
A_GND
C6908
0.1uF
LNB
D6904
40V
LNB_SMAB34
A_GND
A_GND
C6902
0.22uF
25V
LNB
D6903
40V
LNB_SMAB34
R6904
0
R6902
33
LNB
A_GND
C6912
0.1uF
LNB
D6902
30V
LNB
C6900
18pF
18pF
LNB
C6901
33pF
33pF
LNB
IC6900
A8303SESTR-T
DEV_LNB_A8303
1
VCP
3
NC_1
7
SCL
9
ADD
10
TONECTRL
11
TCAP
12
ISET
13
VREG
14
GND
15
VIN
16
LX
17
GNDLX
18
NC_2
19
NC_3
20
BOOST
5
TDO
8
SDA
6
IRQ
4
TDI
2
LNB
21
[EP]GND
(Option:LNB)
DVB-S2 LNB Part Allegro
Input trace widths should be sized to conduct at least 3A
Ouput trace widths should be sized to conduct at least 2A
69
LNB
2011.11.21
Surge protectioin
close to Boost pin(#1)
Max 1.3A
2.4A
2A
close to VIN pin(#15)
3A
Close to Tuner
Caution!! need isolated GND
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.
TXC3N
TXACLKN
C7102
0.1uF
50V
0.1uF
50V
OPT
TXA0N
C7100
10uF
16V
10uF
16V
OPT
TXC2N
TXCCLKP
TXA1P
TXBCLKN
PANEL_VCC
TXA2P
TXD3N
TXC2P
TXC4N
TXCCLKN
TXD4N
R7103
10K
10K
BIT_SEL_LOW
TXB1P
TXB2P
TXB0N
TXA4N
TXB4P
TXBCLKP
TXC0P
TXC1N
TXD2N
TXA1N
L7100
BLM18SG121TN1D
TXB1N
TXA3P
TXD0P
TXD1P
TXA2N
TXA4P
TXD3P
TXB0P
TXB2N
TXB3N
TXA3N
TXC4P
R7102
10K
LVDS_SEL_LOW
TXDCLKN
R7101
3.3K
LVDS_SEL_HIGH
TXC1P
TXACLKP
TXB4N
TXA0P
TXB3P
TXC0N
TXD1N
+3.3V_NORMAL
TXD4P
TXDCLKP
TXD0N
TXC3P
C7101
1000pF
50V
1000pF
50V
OPT
TXD2P
P7100
FI-RE51S-HF-J-R1500
1
NC
2
NC
3
NC
4
NC
5
NC
6
AUO_65_MIRROR
7
LVDS_SEL
8
NC
9
NC
10
TM120_ENABLE
11
GND
12
RA0N
13
RA0P
14
RA1N
15
RA1P
16
RA2N
17
RA2P
18
GND
19
RACLKN
20
RACLKP
21
GND
22
RA3N
23
RA3P
24
RA4N
25
RA4P
26
GND
27
BIT_SEL
28
RB0N
29
RB0P
30
RB1N
31
RB1P
32
RB2N
33
RB2P
34
GND
35
RBCLKN
36
RBCLKP
37
GND
38
RB3N
39
RB3P
40
RB4N
41
RB4P
42
GND
43
GND
44
GND
45
GND
46
GND
47
NC
48
VLCD
49
VLCD
50
VLCD
51
VLCD
52
GND
P7101
FI-RE41S-HF-J-R1500
G3S&60GA64
1
NC
2
NC
3
NC
4
NC
5
NC
6
NC
7
NC
8
NC
9
GND
10
RC0N
11
RC0P
12
RC1N
13
RC1P
14
RC2N
15
RC2P
16
GND
17
RCCLKN
18
RCCLKP
19
GND
20
RC3N
21
RC3P
22
RC4N
23
RC4P
24
GND
25
GND
26
RD0N
27
RD0P
28
RD1N
29
RD1P
30
RD2N
31
RD2P
32
GND
33
RDCLKN
34
RDCLKP
35
GND
36
RD3N
37
RD3P
38
RD4N
39
RD4P
40
GND
41
GND
42
GND
R7105
33
PWM_DIM
R7104
33
+3.3V_NORMAL
R7106
3.3K
OPT
R7107
10K
BPL_IN
FRC3_FLASH_WP
I2C_BE_SDA1
I2C_BE_SCL1
FLASH_WP
LOCAL_DIM_EN
I2C_BE_SDA1
I2C_BE_SCL1
R7108
0
G3S
R7109
0
G3S
+3.5V_ST
C7103
10uF
10V
10uF
10V
SOC_RESET
P7102
12505WS-10A00
OPT
1
/TRST
2
TDI
3
TDO
4
TMS
5
TCK
6
/RST
7
RTCK
8
VCC
9
GND
10
GND
11
GND
C7104
0.1uF
OPT
TCK0
TDI0
TMS0
TDO0
+3.3V_NORMAL
TRST_N0
TCON_I2C
T-CON_EEPROM_WP
R7110
0
G3S
R7111
0
G3S
3D_EN
ODC_CTL
BIT_SEL
[51Pin LVDS OUTPUT Connector]
[41Pin LVDS OUTPUT Connector]
LVDS
LVDS_SEL
71
LVDS_HIGH_MID
2011.04.30
TM120_EN
Close to IC3000, pin#48
JTAG I/F FOR MAIN
will be deleted after DV_Set
G3S&60GA64 : 60GA6400 41P Wafer Option
If you need edit GA7900 Circuit, All select G3S, G3S&60GA64
Click on the first or last page to see other 47GA7800-CB (CHASSIS:LC37G) service manuals if exist.