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42LM620T-ZE
Manuale Utente
LG 42LM620T-ZE Manuale Utente Pagina 73
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Introductions of 12Y WIFI built in ass’y
Copyright © 2012 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
1
2
...
68
69
70
71
72
73
74
75
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77
78
...
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119
LED LCD TV
1
SERVICE MANUAL
1
CONTENTS
2
SAFETY PRECAUTIONS
3
SERVICING PRECAUTIONS
4
SPECIFICATION
6
6. RGB input (PC)
8
7. HDMI Input
9
ADJUSTMENT INSTRUCTION
10
Play: Start
11
3.5.2. Method & notice
12
4. Manual Adjustment
13
(2) Manual adjustment. method
14
4.3. EYE-Q function check
15
Local Dimming Demo
15
(Edge LED Model)
15
4.9.1. Overview
16
4.9.2. Method
16
5. Audio
17
SCREW ASSEMBLY WORKING GUIDE
18
BLOCK DIAGRAM
19
EXPLODED VIEW
20
HDCP EEPROM
21
PLACE AT JACK SIDE
22
SMD Gaskit
23
PLACE AT MAIN SOC SIDE
24
PLACE AT IC6000
24
Renesas MICOM
28
RGB/ PC AUDIO/ SPDIF
30
IR & KEY
33
Zener Diode is
33
+5V_USB FOR USB1
34
ALL M_REMOTE OPTION
36
Ethernet Block
37
2011.09.29
40
HEADPHONE AMP
40
Option FOR MTK
41
Option FOR LG1152
41
DVB-S2 LNB Part Allegro
43
COMMERCIAL_OPTION
44
2011.11.21
44
LOCAL DIMMING
46
<LEVEL SHIFTER BLOCK>
47
<POWER BLOCK>
47
THIS IS REVERSE PATTERN !!!!
47
HYNIX_EMMC_2GB
48
Don’t Connect Power At VDDI
48
2012 LED/LCD TV
51
Engineering guide
51
◈ CONTENT ◈
52
EPI Interface
53
HF mini-LVDS
54
Main PCB for Broadband
56
MTK5369 Block Diagram( LM76 )
57
Jack Interface
58
EPI LEFT
59
EPI RIGHT
59
Main SoC
60
LVDS Tx
61
Interconnection - 1
62
Circuit Block Diagram
63
Pin Configuration
63
KEY1, KEY2 Voltage
63
(Tolerance of voltage ±0.2V)
63
Ass’y Picture
63
Power LED Scenario
64
Manual of Touch Sensitivity
65
Addr Value
66
1. System
68
3. M4 Block Diagram
70
4. Function list
71
Method Description
72
WIFI built in feature
74
1. Widevine?
77
2. HDCP 2.0 & NETFLIX?
77
3. DTCP?
77
4. Changed BOM
77
1. Widevine?
78
2. HDCP 2.0 & NETFLIX?
79
3. DTCP?
80
Continue to the next page
84
A. Video error
85
A. Picture Problem
87
A. Picture Problem (DVB-S/S2)
88
B. Power error
91
C. Audio error
93
D. General Function Problem
95
D. Function error
96
E. Noise
97
F. Exterior defect
98
Continued from previous page
99
LGE Internal Use Only
100
Check the DC 24V, 12V, 3.5V
101
(Power Board ↔ Main Board)
101
Edge LED
101
Æ support -Æ signal test
102
<ALL MODELS>
104
A. Video error_Color error
106
No Light
109
Dim Light
109
No picture/Sound Ok
109
Un-repairable Cases
110
B. Power error _No power
113
Checking method
116
D. VCOM Adjustment
119
1. Case
119
2. Equipment
119
3. Adjust sequence
119
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