Read LG 52LG7500-ZB (CHASSIS:LD86F) Service Manual online
Fi b e r Op t i c
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.
L460
FI-C2012-682KJT
IC462
MC33078DR2G
3
INPUT1+
2
INPUT1-
4
VEE
1
OUTPUT1
5
INPUT2+
6
INPUT2-
7
OUTPUT2
8
VCC
LRCLK_DTV
HDMI_SCK
LRCLK_MUX
3_STATE_BUFFER
IC410
TC74LCX157FT
3
2
4
1
6
5
7
89
10
11
12
13
14
15
16
HDMI_LRCH
SCLK_DTV
HDMI_LRCK
SCLK_MUX
PCMDATA_DTV
+3.3V
PCMDATA_MUX
R403
10K
Q402
2SC3875S 1
E
2
B
3 C
R407
12K
Q401
2SC3875S
1
E
2 B
3
C
Q400
2SC3875S
1
E
2
B
3
C
GND
Q460
2SA1504S
E
B
C
GND
GND
P_12V
5.0V
5.0V
SPDIF_OUT
R483
1K
ZD400
READY
R484
27
5.0V
C480
0.1uF
C474
0.1uF
C430 0.1uF
C469
0.1uF
16V
R414
1K
R415
1K
R448 100
R480
100
R446 100
R475
5.1K
C468
0.01uF
R422
4.7K
R481
0
R479
0
R416
0
R417
0
C434
READY
C433
READY
IC461
MC33078DR2G
3
INPUT1+
2
INPUT1-
4
VEE
1
OUTPUT1
5
INPUT2+
6
INPUT2-
7
OUTPUT2
8
VCC
C476
10uF
16V
C475
47uF
16V
R476
2K
C451
0.1uF
OPT
C452
0.1uF
OPT
C453
0.1uF
OPT
C454
0.1uF
OPT
JK400
JST1223-001
1
GND
2
VCC
3
VINPUT
4
FIX_POLE
C477
10uF
16V
+9V_CXA2069
AUDANA_GND
AUDANA_GND
AUDANA_GND
AUDANA_GND
AUDANA_GND
AUDANA_GND
R485
0
R498
0
AUDANA_GND
R499
0
AUDANA_GND
SPDIF_STI_OUT
SPDIF_MSP_OUT
SPDIF_OUT
SP_CVBS
CVBS
PIO2B6
PIO2B7
REC_8
AUD_ANAL-
AUD_ANAL+
AUD_ANAR+
AUD_ANAR-
AUD_ANA_VBG
DTV_ROUT
DTV_LOUT
JP400
JP401
TP400
TP401
TP402
TP403
TP404
TP405
TP418
TP419
TP420
TP421
TP422
TP423
TP424
TP425
TP426
TP427
R472
3.3K
R473
3.3K
R469
3.3K
R468
3.3K
R489
1K
R487
1K
R486
1K
R488
1K
R461
27
R463
27
R464
27
R462
27
L400
FI-C2012-682KJT
TP428
TP429
TP430
TP431
TP432
TP433
TP434
TP435
TP436
TP437
TP441
TP442
TP443
TP444
TP445
TP446
TP447
TP448
TP449
TP450
TP451
R438
0
R441
100
R439
100
C435
READY
C432
READY
C465
1000pF
C464
1000pF
C467
1000pF
C466
1000pF
TP406
TP407
TP408
4Y
1Y
VCC
3A
3Y
ST
LOW
1A
SEL
GND
1B
2A
2B
I2S SWITCHING (DTV&HDMI)
HIGH
4A
3B
4B
2Y
TO MSP
SPDIF OPTIC JACK
OPTION
[SCART PIN8]
5.19V / 10.91V_1Kohm(LOAD)
4.89V / 9.09V_120ohm(LOAD)
% MUST BE PLACED NEAR IC100
4. I2S & ETC
C
2008
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