DOWNLOAD LG 47GA7900-UA (CHASSIS:LA37G) Service Manual ↓ Size: 12.15 MB | Pages: 116 in PDF or view online for FREE

Model
47GA7900-UA (CHASSIS:LA37G)
Pages
116
Size
12.15 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
47ga7900-ua-chassis-la37g.pdf
Date

LG 47GA7900-UA (CHASSIS:LA37G) 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.
SC_L_IN
C4602
4700pF
EU
Q4601
MMBT3904(NXP)
EU
E
B
C
C4604
0.1uF
EU
JK4600
DA1R018H91E
EU
1
AUDIO_R_OUT
2
AUDIO_R_IN
3
AUDIO_L_OUT
4
AUDIO_GND
5
B_GND
6
AUDIO_L_IN
7
B_OUT
8
ID
9
G_GND
10
G_OUT
11
R_GND
12
R_OUT
13
RGB_IO
14
SYNC_GND
15
SYNC_OUT
16
SYNC_IN
17
COM_GND
18
AV_DET
19
SHIELD
SC_G
+12V
R4602
390
EU
C4603
4700pF
EU
R4603
390
EU
SC_DET
DTV/MNT_L_OUT
SC_ID
DTV/MNT_V_OUT
R4604
180
EU
SC_B
SC_R_IN
+3.3V_NORMAL
R4607
15K
EU
SC_CVBS_IN
Q4600
MMBT3906(NXP) 
EU
E
B
C
C4600
1000pF
50V
EU
R4605
470
EU
C4601
1000pF
50V
EU
L4600
BLM18PG121SN1D
EU
L4601
BLM18PG121SN1D
EU
R4600
75
EU
DTV/MNT_R_OUT
SC_FB
SC_R
R4606
47K
EU
C4606
0.1uF
50V
EU
R4601
10K
EU
R4608
0
OPT
D4611
5.6V
OPT
D4607
5.6V
OPT
D4606
5.6V
OPT
D4605
5.6V
OPT
D4608
5.6V
OPT
D4601
5.6V
OPT
D4601-*1
5.6V
ESD_MTK_SCART
200pF
D4605-*2
5.6V
ESD_LG1152_SCART
200pF
D4606-*2
5.6V
ESD_LG1152_SCART
200pF
D4601-*2
5.6V
ESD_LG1152_SCART
200pF
D4611-*2
5.6V
ESD_LG1152_SCART
200pF
D4600
20V
OPT
D4600-*2
20V
ESD_LG1152_SCART
10pF
C4605
100uF
16V
EU
C4607
47uF
25V
EU
D4611-*1
5.6V
ESD_MTK_SCART
200pF
D4609
5.5V
OPT
D4610
5.5V
OPT
D4603
5.5V
OPT
D4602
5.5V
OPT
D4604
5.5V
OPT
D4609-*1
5.5V
ESD_MTK_SCART
15pF
D4609-*2
5.5V
ESD_LG1152_SCART
15pF
D4610-*1
5.5V
ESD_MTK_SCART
15pF
D4602-*1
5.5V
ESD_MTK_SCART
15pF
D4603-*1
5.5V
ESD_MTK_SCART
15pF
D4604-*1
5.5V
ESD_MTK_SCART
15pF
D4600-*1
20V
ESD_MTK_SCART
10pF
D4605-*1
5.6V
ESD_MTK_SCART
200pF
D4606-*1
5.6V
ESD_MTK_SCART
200pF
46
SCART GENDER
2011.10.26
Full Scart(18 Pin Gender)
Gain=1+Rf/Rg
CLOSE TO JUNCTION
Rf
Rg
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.
EPHY_RDN
C5002
0.1uF
16V
C5001
0.01uF
50V
EPHY_TDP
EPHY_TDN
C5000
0.1uF
16V
JK5000
XRJH-01A-4-DA7-180-LG(B)
LAN_XML
1
P1[CT]
2
P2[TD+]
3
P3[TD-]
4
P4[RD+]
5
P5[RD-]
6
P6[CT]
7
P7
8
P8
12
SHIELD
9
P9
11
P11
10
P10[GND]
D1
YL_C
D2
YL_A
D3
GN_C
D4
GN_A
C5003
0.01uF
50V
EPHY_RDP
LAN_JACK_POWER
D5000
5.5V
OPT
D5002
5.5V
OPT
D5003
5.5V
OPT
D5001
5.5V
OPT
D5001-*2
5.5V
ADUC 5S 02 0R5L 
ESD_LG1152
D5003-*2
5.5V
ADUC 5S 02 0R5L 
ESD_LG1152
D5002-*2
5.5V
ADUC 5S 02 0R5L 
ESD_LG1152
D5000-*2
5.5V
ADUC 5S 02 0R5L 
ESD_LG1152
D5003-*1
ADUC 5S 02 0R5L 
ESD_MTK
D5000-*1
ADUC 5S 02 0R5L 
ESD_MTK
D5002-*1
ADUC 5S 02 0R5L 
ESD_MTK
D5001-*1
ADUC 5S 02 0R5L 
ESD_MTK
JK5000-*1
TLA-6T764
LAN_TDK
1
R1
2
R2
3
R3
4
R4
5
R5
6
R6
7
R7
8
R8
12
SHIELD
9
R9
11
R11
10
R10[GND]
D1
YL_C
D2
YL_A
D3
GN_C
D4
GN_A
Ethernet Block
50
LAN_VERTICAL
2011.12.09
ESD for LG1152
ESD for MTK
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.
EPHY_EN
R5215
4.7K
EPHY_TXD0
C5200
4.7uF
10V
R5204
2.49K 1%
EPHY_RDP
/RST_PHY
C5201
0.1uF
16V
ET_COL/SNI
R5206
22
ET_RXER
R5210
22
EPHY_CRS_DV
R5212
1.5K
1/16W
5%
EPHY_ACTIVITY
EPHY_RXD0
C5210
10uF
10V
OPT
EPHY_RDN
R5203
4.7K
EPHY_TDP
C5205
0.1uF
16V
EPHY_ACTIVITY
C5204
10uF
10V
OPT
C5203
0.1uF
16V
EPHY_RXD1
EPHY_TDN
EPHY_REFCLK
ET_RXER
EPHY_TXD1
R5208
4.7K
EPHY_MDC
C5211
0.1uF
16V
R5217
4.7K
C5208
0.1uF
16V
R5207
22
EPHY_MDIO
LAN_JACK_POWER
C5212
0.1uF
OPT
ET_COL/SNI
C5209
56pF
C5202
56pF
EPHY_INT
R5201
22
L5211
100NH
IC5200
RTL8201F-VB-CG 
1
RSET
3
MDI+[0]
7
AVDD33_1
9
RXD[0]
10
RXD[1]
11
RXD[2]/INTB
12
RXD[3]/CLK_CTL
13
RXC
14
DVDD33
15
TXC
16
TXD[0]
17
TXD[1]
18
TXD[2]
19
TXD[3]
20
TXEN
21
PHYRSTB
22
MDC
23
MDIO
24
LED0/PHYAD[0]/PMEB
25
LED1/PHYAD[1]
26
CRS/CRS_DV
27
COL
28
RXER/FXEN
29
DVDD10OUT
30
AVDD33_2
31
CKXTAL1
32
CKXTAL2
5
MDI+[1]
8
RXDV
6
MDI-[1]
4
MDI-[0]
2
AVDD10OUT
33
[EP]
+3.3V_WOL
+3.3V_WOL
+3.3V_WOL
+3.3V_WOL
+3.3V_WOL
WOL/WOW_POWER_ON
L5200
BLM18PG121SN1D
120-ohm
R5211
3.3K
WOL_CTL
R5202
22K
Q5201
PMV48XP
G
D
S
C5213
4.7uF
10V
Q5200
MMBT3904(NXP)
E
B
C
R5209
2.2K
+3.5V_WOL
+3.5V_ST
+3.5V_WOL
+3.3V_WOL
R5216
4.7K
R5205
0
C5207
20pF
50V
C5206
20pF
50V
X5200
25MHz
4
GND_2
1
X-TAL_1
2
GND_1
3
X-TAL_2
R5213
1M
OPT
14
ETHERNET
50
LG1152 A0
Place near IC
Ethernet Block
Route Single 50 Ohm, Differential 100 Ohm
Place 0.1uF close to each power pins
Place this Res. near IC
25MHz, CL 18pF, ESR , max 30 Ohm, +/-30ppm
Place this cap. near IC
Place this cap. near IC
WOL POWER ENABLE CONTROL
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.
D5402
100V
1N4148W
OPT
R5402
100
0.1uF
C5421
50V
R5411
12
C5434
0.47uF
50V
C5408
33pF
50V
R5407
12
C5403
1000pF
50V
R5405
100
R5406
3.3
OPT
R5413
12
R5403
100
R5414
12
0.1uF
C5419
50V
C5427
1uF
25V
C5425
22000pF
50V
C5416
22000pF
50V
C5422
10uF
35V
0.1uF
C5436
50V
+3.3V_NORMAL
C5426
22000pF
50V
L5402
NRS6045T100MMGK
10.0uH
R5412
12
C5423
10uF
35V
0.1uF
C5400
50V
C5432
390pF
50V
0.1uF
C5437
50V
0.1uF
C5418
50V
R5409
12
0.1uF
C5401
50V
SPK_L-
C5402
100pF
50V
C5406
33pF
50V
C5405
10uF
10V
OPT
D5400
100V
1N4148W
OPT
C5404
1000pF
50V
C5430
390pF
50V
C5429
390pF
50V
L5405
NRS6045T100MMGK
10.0uH
SPK_R-
+24V_AMP
L5403
NRS6045T100MMGK
10.0uH
C5411
0.1uF
16V
AUD_MASTER_CLK
0.1uF
C5438
50V
SPK_R-
AUD_SCK
D5401
100V
1N4148W
OPT
R5404
3.3K
AUD_LRCK
C5415
1000pF
50V
R5401
10K
I2C_SDA1
0.1uF
C5413
16V
AUD_LRCH
L5401
BLM18PG121SN1D
+24V_AMP
SPK_R+
C5431
390pF
50V
+24V_AMP
D5403
100V
1N4148W
OPT
C5414
10uF
10V
AMP_RESET_N
R5408
12
C5433
1uF
25V
L5404
NRS6045T100MMGK
10.0uH
SPK_L-
C5435
0.47uF
50V
C5428
1uF
25V
I2C_SCL1
C5409
10uF
10V
OPT
SPK_L+
P5400
WAFER-ANGLE
1
2
3
4
AMP_MUTE
0.1uF
C5439
50V
C5417
22000pF
50V
R5400
10K
R5410
12
SPK_R+
0.1uF
C5412
16V
+24V
C5410
10uF
10V
OPT
0.1uF
C5420
50V
SPK_L+
WOOFER_MUTE
WOOFER_MUTE
TP5403
C5424
0.01uF
50V
OPT
L5400
CIS21J121
Q5400
MMBT3904(NXP)
E
B
C
4.7uF
C5407
10V
R5418
5.1K
R5415
5.1K
R5416
5.1K
R5417
5.1K
+3.3V_NORMAL
IC5400
NTP-7500L
1
AGND_PLL
2
AVDD_PLL
3
DVDD_PLL
4
LF
5
DGND_PLL
6
GND_1
7
DGND
8
DVDD
9
SDATA
10
WCK
11
BCK
12
SDA
13
SCL
14
/FAULT
15
MONITOR0
16
MONITOR1
17
MONITOR2
18
BST2B
19
PGND2B
20
OUT2B_1
21
OUT2B_2
22
PVDD2_1
23
PVDD2_2
24
PVDD2_3
25
OUT2A_1
26
OUT2A_2
27
PGND2A
28
BST2A
29
VDR2
30
AGND
31
VCC_5
32
VDR1
33
BST1B
34
PGND1B
35
OUT1B_1
36
OUT1B_2
37
PVDD1_1
38
PVDD1_2
39
PVDD1_3
40
OUT1A_1
41
OUT1A_2
42
PGND1A
43
BST1A
44
/RESET
45
AD
46
GND_IO
47
CLK_I
48
VDD_IO
49
[EP]
SPEAKER_R
DUAL COMPONENT
Q1801
0x54
SPEAKER_L
1ST : 0TRIY80001A  2ND : 0TR387500AA
54
AMP_NEO
2011.11.21
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