Read LG 42LF7300 Service Manual online
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
+3V3_A
+3V3_A
COMP_LI
9
COMP_RI
9
AV_CVBS
9
CVBS_LI
9
CVBS_RI
9
COMP_Y
9
COMP_Pb
9
COMP_Pr
9
AV_CVBS_LINK
5
COMP_LINK
5
Title
Size
Document Number
Rev
Date:
Sheet
of
LF7300-MAIN-17
10
CONN[COMP&SIDE A/V]
LGE HD T+C
LF7300
17
43
Wednesday, April 15, 2009
Title
Size
Document Number
Rev
Date:
Sheet
of
LF7300-MAIN-17
10
CONN[COMP&SIDE A/V]
LGE HD T+C
LF7300
17
43
Wednesday, April 15, 2009
Title
Size
Document Number
Rev
Date:
Sheet
of
LF7300-MAIN-17
10
CONN[COMP&SIDE A/V]
LGE HD T+C
LF7300
17
43
Wednesday, April 15, 2009
R325
224/1005
224/1005
R325
224/1005
224/1005
R321
102/1005
R321
102/1005
L46
CIL21J1R8KNE
CIL21J1R8KNE
L46
CIL21J1R8KNE
CIL21J1R8KNE
C391
OPEN-102p/50V/1005
OPEN-102p/50V/1005
C391
OPEN-102p/50V/1005
OPEN-102p/50V/1005
R322
224/1005
224/1005
R322
224/1005
224/1005
RV30
SV060305E101N
SV060305E101N
RV30
SV060305E101N
SV060305E101N
L47
CIL21J1R8KNE
CIL21J1R8KNE
L47
CIL21J1R8KNE
CIL21J1R8KNE
R319
103/1005
103/1005
R319
103/1005
103/1005
R326
224/1005
224/1005
R326
224/1005
224/1005
Y
Pb
Pr
AL
AR
Support
Hole
Hole
JP16
PPJ229-01
PPJ229-01
Y
Pb
Pr
AL
AR
Support
Hole
Hole
JP16
PPJ229-01
PPJ229-01
1
2
3
2
3
4
5
6
7
8
9
10
12
11
13
14
15
16
14
15
16
R317
750/F/1005
750/F/1005
R317
750/F/1005
750/F/1005
RV31
OPEN-SV060314B431N
OPEN-SV060314B431N
RV31
OPEN-SV060314B431N
OPEN-SV060314B431N
RV32
SV060314B431N
RV32
SV060314B431N
R324
224/1005
224/1005
R324
224/1005
224/1005
RV28
SV060305E101N
SV060305E101N
RV28
SV060305E101N
SV060305E101N
R323
750/F/1005
750/F/1005
R323
750/F/1005
750/F/1005
Z2
ZMMC5V6
ZMMC5V6
Z2
ZMMC5V6
ZMMC5V6
1
2
L49
CIL21J1R8KNE
L49
CIL21J1R8KNE
C280
104p/16V/1005
104p/16V/1005
C280
104p/16V/1005
104p/16V/1005
C392
OPEN-102p/50V/1005
OPEN-102p/50V/1005
C392
OPEN-102p/50V/1005
OPEN-102p/50V/1005
R318
102/1005
R318
102/1005
C281
104p/16V/1005
104p/16V/1005
C281
104p/16V/1005
104p/16V/1005
R320
750/F/1005
750/F/1005
R320
750/F/1005
750/F/1005
CVBS
AL
AR
Support
Hole
Hole
JP17
PPJ218-01
PPJ218-01
CVBS
AL
AR
Support
Hole
Hole
JP17
PPJ218-01
PPJ218-01
1
2
3
2
3
4
5
6
7
8
7
8
9
10
10
R316
103/1005
103/1005
R316
103/1005
103/1005
R315
750/F/1005
750/F/1005
R315
750/F/1005
750/F/1005
Z1
ZMMC5V6
ZMMC5V6
Z1
ZMMC5V6
ZMMC5V6
1
2
RV33
SV060314B431N
RV33
SV060314B431N
C282
102p/50V/1005
102p/50V/1005
C282
102p/50V/1005
102p/50V/1005
RV27
SV060305E101N
SV060305E101N
RV27
SV060305E101N
SV060305E101N
C283
102p/50V/1005
102p/50V/1005
C283
102p/50V/1005
102p/50V/1005
L48
CIL21J1R8KNE
L48
CIL21J1R8KNE
RV29
OPEN-SV060314B431N
OPEN-SV060314B431N
RV29
OPEN-SV060314B431N
OPEN-SV060314B431N
1
1
2
2
3
3
4
4
5
5
6
6
D
D
C
C
B
B
A
A
HPO_L
AMP_R-
AMP_R-
LFM
AMP_L-
LFM
AMP_R+
AMP_L-
AMP_R+
AMP_L+
AMP_L+
AC_DETECT
HP_L_OUT
HP_R_OUT
HPO_R
+20V
+5V
AVDD_PLL
DVDD_PLL
AVDD_PLL
DVDD
DVDD
DVDD_PLL
AVDD_PLL
+3V3_A
+20V
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
GND_A
+3V3_A
+3V3_A
+3V3_A
HP_LINK
5
AC_DETECT
1,2,15
I2S_OUT_CLK
5
I2S_OUT_WS
5
A_RESET
2
I2S_OUT_DAT
5
I2S_OUT_MCLK
5
FLI_SDA0
2,4,12,20
FLI_SCL0
2,4,12,20
SC2_MUTE
15,16
HP_L_OUT
9
HP_R_OUT
9
Title
Size
Document Number
Rev
Date:
Sheet
of
LF7300-MAIN-18
10
AUDIO/HP AMP[NTP3000A]
LGE HD T+C
LF7300
18
43
Wednesday, April 15, 2009
Title
Size
Document Number
Rev
Date:
Sheet
of
LF7300-MAIN-18
10
AUDIO/HP AMP[NTP3000A]
LGE HD T+C
LF7300
18
43
Wednesday, April 15, 2009
Title
Size
Document Number
Rev
Date:
Sheet
of
LF7300-MAIN-18
10
AUDIO/HP AMP[NTP3000A]
LGE HD T+C
LF7300
18
43
Wednesday, April 15, 2009
MAIN AMP
HEADPHONE AMP
Q34
KTD1304
Q34
KTD1304
2
1
3
R328
3R3
3R3
R328
3R3
3R3
C311
104p/16V/1005
C311
104p/16V/1005
C326
OPEN-330p/50V/1005
C326
OPEN-330p/50V/1005
C290
105p/25V
105p/25V
C290
105p/25V
105p/25V
C334
220uF/16V/MVK/S
C334
220uF/16V/MVK/S
TP119
PCB_TP10
TP119
PCB_TP10
1
C299
105p/25V
C299
105p/25V
C298
105p/25V
C298
105p/25V
R361
103/1005
103/1005
R361
103/1005
103/1005
R329
472
472
R329
472
472
C336
105p/25V
105p/25V
C336
105p/25V
105p/25V
R331
3R3
3R3
R331
3R3
3R3
D8
OPEN-MBRS130L3
D8
OPEN-MBRS130L3
1
2
C304
103p/50V/1005
103p/50V/1005
C304
103p/50V/1005
103p/50V/1005
R336
472/1005
472/1005
R336
472/1005
472/1005
C313
391p/50V
391p/50V
C313
391p/50V
391p/50V
R351
473/1005
R351
473/1005
L50
SMD COIL(22UH)DA-8580
L50
SMD COIL(22UH)DA-8580
1
2
3
4
R360
103/1005
103/1005
R360
103/1005
103/1005
R337
5R6/F
5R6/F
R337
5R6/F
5R6/F
C307
104p/50V
C307
104p/50V
TP117
PCB_TP10
TP117
PCB_TP10
1
R340
3R3
3R3
R340
3R3
3R3
R352
OPEN-000/1005
R352
OPEN-000/1005
R359
103/F/1005
103/F/1005
R359
103/F/1005
103/F/1005
R345
220/1005
R345
220/1005
C337
106p/16V/2012
C337
106p/16V/2012
C303
104p/50V
C303
104p/50V
C286
103p/50V/1005
103p/50V/1005
C286
103p/50V/1005
103p/50V/1005
R347
220/1005
R347
220/1005
L51
SMD COIL(22UH)DA-8580
L51
SMD COIL(22UH)DA-8580
1
2
3
4
U24
AMP NTP-3000A
AMP NTP-3000A
U24
AMP NTP-3000A
AMP NTP-3000A
BST1A
1
VDR1A
2
/RESET
3
AD
4
VSS_IO
5
CLK_I
6
CLK_O
7
VDD_IO
8
DGND_PLL
9
AGND_PLL
10
LFM
11
AVDD_PLL
12
DVDD_PLL
13
VSS
14
DVSS
15
DVDD
16
SDATA
17
WC
K
18
BCK
19
SDA
20
SCL
21
PWM
_3B/PWM
_HP2
22
PWM
_3A/PWM
_HP1
23
PROTECT
24
FAULT
25
VDR2
B
26
BST2B
27
PGND2
B
28
NC
42
VDR2A
41
BST2A
40
PGND2A
39
PGND2A
38
OUT2A
37
OUT2A
36
PVDD2A
35
PVDD2A
34
PVDD2B
33
PVDD2B
32
OUT2B
31
OUT2B
30
PGND2B
29
PGND1
A
56
PGND1
A
55
OUT
1
A
54
OUT
1
A
53
PVDD1A
52
PVDD1A
51
PVDD1B
50
PVDD1B
49
OUT
1
B
48
OUT
1
B
47
PGND1
B
46
PGND1
B
45
BST1B
44
VDR1
B
43
PAD_GND
57
R343
332/F/1005
332/F/1005
R343
332/F/1005
332/F/1005
C330
104p/16V/1005
C330
104p/16V/1005
R349
330/1005
R349
330/1005
2mm
JP18
SMAW200-04
SMAW200-04
2mm
JP18
SMAW200-04
SMAW200-04
2
3
4
3
4
1
D9
OPEN-MBRS130L3
D9
OPEN-MBRS130L3
1
2
C328
102p/50V/1005
C328
102p/50V/1005
R342
472
472
R342
472
472
R332
472
472
R332
472
472
JP19
IJA03
IJA03
JP19
IJA03
IJA03
1
3
11
10
2
7
8
9
6
5
4
5
4
C333
105p/25V
C333
105p/25V
R333
472/1005
472/1005
R333
472/1005
472/1005
R341
5R6/F
5R6/F
R341
5R6/F
5R6/F
C331
223p/16V/1005
223p/16V/1005
C331
223p/16V/1005
223p/16V/1005
L57
BLM18PG300SN1D
BLM18PG300SN1D
L57
BLM18PG300SN1D
BLM18PG300SN1D
R358
220/1005
220/1005
R358
220/1005
220/1005
C308
100uF/25V/BXE/S
C308
100uF/25V/BXE/S
C315
102p/50V/1005
102p/50V/1005
C315
102p/50V/1005
102p/50V/1005
U26
TPA6110A2DGN
TPA6110A2DGN
U26
TPA6110A2DGN
TPA6110A2DGN
BYPASS
1
GND
2
Shutdown
3
IN2-
4
IN1-
8
VDD
6
Vo2
5
Vo1
7
GND
9
C291
391p/50V
391p/50V
C291
391p/50V
391p/50V
R353
103/1005
R353
103/1005
R330
3R3
3R3
R330
3R3
3R3
C324
104p/16V/1005
C324
104p/16V/1005
C301
223p/50V
C301
223p/50V
C327
OPEN-330p/50V/1005
C327
OPEN-330p/50V/1005
C332
220uF/16V/MVK/S
C332
220uF/16V/MVK/S
C335
223p/16V/1005
223p/16V/1005
C335
223p/16V/1005
223p/16V/1005
L54
BLM18PG300SN1D
BLM18PG300SN1D
L54
BLM18PG300SN1D
BLM18PG300SN1D
C1
100uF/25V/BXE/S
C1
100uF/25V/BXE/S
R348
560/F/1005
R348
560/F/1005
L56
CIL10J1R8KNC
CIL10J1R8KNC
L56
CIL10J1R8KNC
CIL10J1R8KNC
R346
220/1005
R346
220/1005
R355
473/F/1005
473/F/1005
R355
473/F/1005
473/F/1005
C287
105p/50V/3216
C287
105p/50V/3216
C302
102p/50V/1005
102p/50V/1005
C302
102p/50V/1005
102p/50V/1005
R350
330/1005
R350
330/1005
R365
102/1005
102/1005
R365
102/1005
102/1005
C284
104p/50V
C284
104p/50V
C305
391p/50V
391p/50V
C305
391p/50V
391p/50V
C288
104p/50V
C288
104p/50V
C292
103p/50V/1005
C292
103p/50V/1005
C317
103p/50V/1005
103p/50V/1005
C317
103p/50V/1005
103p/50V/1005
D7
OPEN-MBRS130L3
D7
OPEN-MBRS130L3
1
2
Q33
KTD1304
Q33
KTD1304
2
1
3
R356
220/1005
220/1005
R356
220/1005
220/1005
R334
5R6/F
5R6/F
R334
5R6/F
5R6/F
C306
104p/16V/1005
C306
104p/16V/1005
C322
105p/25V
105p/25V
C322
105p/25V
105p/25V
C321
104p/16V/1005
C321
104p/16V/1005
R339
3R3
3R3
R339
3R3
3R3
R335
101/1005
101/1005
R335
101/1005
101/1005
R362
473/F/1005
473/F/1005
R362
473/F/1005
473/F/1005
L52
BLM18PG300SN1D
BLM18PG300SN1D
L52
BLM18PG300SN1D
BLM18PG300SN1D
C318
106p/16V/2012
C318
106p/16V/2012
C325
106p/16V/2012
106p/16V/2012
C325
106p/16V/2012
106p/16V/2012
R354
103/F/1005
103/F/1005
R354
103/F/1005
103/F/1005
C296
223p/50V
C296
223p/50V
R338
472
472
R338
472
472
R363
102/1005
102/1005
R363
102/1005
102/1005
R364
222/F
R364
222/F
C312
105p/50V/3216
C312
105p/50V/3216
U25
LD1117AL-ADJ
LD1117AL-ADJ
U25
LD1117AL-ADJ
LD1117AL-ADJ
VIN
3
ADJ
1
VO
2
TAP
4
TP118
PCB_TP10
TP118
PCB_TP10
1
C316
104p/50V
C316
104p/50V
R344
121/F/1005
R344
121/F/1005
D6
OPEN-MBRS130L3
D6
OPEN-MBRS130L3
1
2
L53
BLM18PG300SN1D
BLM18PG300SN1D
L53
BLM18PG300SN1D
BLM18PG300SN1D
C294
391p/50V
391p/50V
C294
391p/50V
391p/50V
C319
104p/16V/1005
C319
104p/16V/1005
C295
104p/50V
C295
104p/50V
C297
103p/50V/1005
103p/50V/1005
C297
103p/50V/1005
103p/50V/1005
R327
5R6/F
5R6/F
R327
5R6/F
5R6/F
C329
105p/25V
105p/25V
C329
105p/25V
105p/25V
C323
223p/50V
223p/50V
C323
223p/50V
223p/50V
C310
106p/16V/2012
C310
106p/16V/2012
C300
104p/16V/1005
104p/16V/1005
C300
104p/16V/1005
104p/16V/1005
C293
474p/50V/2012
474p/50V/2012
C293
474p/50V/2012
474p/50V/2012
C338
105p/25V
C338
105p/25V
C320
106p/16V/2012
C320
106p/16V/2012
L55
CIL10J1R8KNC
CIL10J1R8KNC
L55
CIL10J1R8KNC
CIL10J1R8KNC
C289
223p/50V
223p/50V
C289
223p/50V
223p/50V
C309
474p/50V/2012
474p/50V/2012
C309
474p/50V/2012
474p/50V/2012
C314
101p/50V/1005
101p/50V/1005
C314
101p/50V/1005
101p/50V/1005
R357
102/1005
R357
102/1005
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