LG 42LT777H Service Manual page 33
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Also See for 42LT777H:
- Commercial mode setup manual (85 pages) ,
- Quick reference manual (40 pages) ,
- Brochure & specs (4 pages)
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5V_HDMI_4_JACK
R3310
1K
SHIELD
C
20
Q3301
B
MMBT3904(NXP)
19
R3307
HPD
100K
E
18
+5V_POWER
17
DDC/CEC_GND
R3308
100
DDC_SDA_4_JACK
16
SDA
R3309
100
DDC_SCL_4_JACK
15
SCL
14
NC
CEC_REMOTE
13
CEC
R3341
0
CK-_HDMI4_JACK
12
CLK-
11
CLK_SHIELD
R3342
0
CK+_HDMI4_JACK
10
R3343
CLK+
0
D0-_HDMI4_JACK
9
DATA0-
8
DATA0_SHIELD
R3344
0
D0+_HDMI4_JACK
7
R3345
DATA0+
0
D1-_HDMI4_JACK
6
DATA1-
5
R3346
DATA1_SHIELD
0
D1+_HDMI4_JACK
4
DATA1+
R3347
0
D2-_HDMI4_JACK
3
DATA2-
2
DATA2_SHIELD
R3348
0
D2+_HDMI4_JACK
1
DATA2+
Close to Connector
For ESD
YKF45-7058V
JK3301
5V_HDMI_2_JACK
R3316
1K
SHIELD
C
20
R3313
Q3302
100K
MMBT3904(NXP)
19
HPD
E
18
+5V_POWER
17
DDC/CEC_GND
R3314
100
DDC_SDA_2_JACK
16
SDA
R3315
100
DDC_SCL_2_JACK
15
SCL
R3300
0
14
NC
JP3300
CEC_REMOTE
13
CEC
R3349
0
CK-_HDMI2_JACK
12
CLK-
11
R3350
CLK_SHIELD
0
CK+_HDMI2_JACK
10
CLK+
R3351
0
D0-_HDMI2_JACK
9
DATA0-
R3300 MTK Recommend : 0 Ohm
8
R3352
DATA0_SHIELD
0
D0+_HDMI2_JACK
7
DATA0+
R3353
0
D1-_HDMI2_JACK
6
DATA1-
5
DATA1_SHIELD
R3354
0
D1+_HDMI2_JACK
4
R3355
DATA1+
0
D2-_HDMI2_JACK
3
DATA2-
2
DATA2_SHIELD
R3356
0
D2+_HDMI2_JACK
1
DATA2+
Close to Connector
YKF45-7058V
For ESD
JK3302
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 ⓒ 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
5V_HDMI_3_JACK
R3312
4.7K
HPD_PULL_UP
BODY_SHIELD
R3311
1K
20
HDMI_HPD_4_JACK
R3372
19
R3327
HOT_PLUG_DETECT
10K
100K
HPD_PULL_DOWN
18
VDD[+5V]
17
DDC/CEC_GND
R3328
16
SDA
R3329
15
SCL
14
RESERVED
13
CEC
12
TMDS_CLK-
11
TMDS_CLK_SHIELD
10
TMDS_CLK+
9
TMDS_DATA0-
8
TMDS_DATA0_SHIELD
7
TMDS_DATA0+
6
TMDS_DATA1-
5
TMDS_DATA1_SHIELD
4
TMDS_DATA1+
3
TMDS_DATA2-
2
TMDS_DATA2_SHIELD
1
TMDS_DATA2+
RSD-105156-100
UI : HDMI2
JK3303
R3318
4.7K
HPD_PULL_UP
HPD SWITCH
R3317
1K
B
HDMI_HPD_2_JACK
HPD_CTL CONNECTION
R3374
10K
L
HPD_PULL_DOWN
H
HPD_CTL
HDMI_ARC
+3.5V_ST
C3306
0.1uF
HDMI_HPD_2_JACK
UI : HDMI1
R3330
R3336
1K
4.7K
HPD_PULL_UP
C
R3331
1K
Q3303
B
HDMI_HPD_3_JACK
MMBT3904(NXP)
R3373
E
10K
HPD_PULL_DOWN
100
DDC_SDA_3_JACK
100
DDC_SCL_3_JACK
CEC_REMOTE
CK-_HDMI3_JACK
CK+_HDMI3_JACK
D0-_HDMI3_JACK
D0+_HDMI3_JACK
D1-_HDMI3_JACK
D1+_HDMI3_JACK
D2-_HDMI3_JACK
D2+_HDMI3_JACK
UI : HDMI3
B0 - A
MTK_HPD
B1 - A
PTC_HPD
CEC_REMOTE
From HDMI Connector
IC3301
NLASB3157DFT2G
SELECT
B1
R3376
0
6
1
PTC_HPD
VCC
GND
5
2
A
B0
R3377
0
4
3
MTK_HPD
R3375
0
OPT
5V_HDMI_3_JACK
C3302
0.1uF
16V
R3337
47K
5V_HDMI_2_JACK
+5V_NORMAL
5V_HDMI_4_JACK
MMBD6100
D3301
C3301
C3303
0.1uF
0.1uF
16V
16V
R3324
R3326
R3338
47K
47K
47K
DDC_SCL_2_JACK
DDC_SDA_2_JACK
For CEC
+3.5V_ST
R3302
68K
OPT
R3303
62K
OPT
R3370
22
+3.5V_ST
OPT
Q3300
BSS83
R3365
10K
GND
C
C3304
Q3306
B
0.1uF
MMBT3904(NXP)
16V
VCC
E
GND
R3367
10K
GND
+3.5V_ST
R3360
68K
R3361
62K
R3371
22
+3.5V_ST
OPT
Q3304
BSS83
R3362
10K
GND
C
C3305
0.1uF
Q3305
B
16V
MMBT3904(NXP)
E
R3366
GND
10K
OPT
GND
xxLT760H-UA
HDMI 4
+5V_NORMAL
MMBD6100
D3302
R3339
47K
DDC_SCL_3_JACK
DDC_SDA_3_JACK
+5V_NORMAL
MMBD6100
D3303
R3340
47K
DDC_SCL_4_JACK
DDC_SDA_4_JACK
HDMI_CEC_MTK
To MTK
IC3300
74LX1G14CTR
NC
R3368
10K OPT
5
1
CEC_CTL
1A
2
POWER_ON/OFF1
R3369
10K
1Y
GND
4
3
GND
HDMI_CEC_PTC
To PTC
R3363
10K OPT
CEC_CTL
R3364
10K
POWER_ON/OFF1
2011.09.29
33
LGE Internal Use Only
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