LG 32LF550U Manuals

Manuals and User Guides for LG 32LF550U. We have 1 LG 32LF550U manual available for free PDF download: Service Manual

LG 32LF550U Service Manual (81 pages)

Brand: LG | Category: LED TV | Size: 6.88 MB

Contents
2
Safety Precautions
3
General Guidance
3
Leakage Current Cold Check(Antenna Cold Check)
3
Leakage Current Hot Check
3
Servicing Precautions
4
Electrostatically Sensitive (ES) Devices
4
General Soldering Guidelines
4
IC Remove/Replacement
5
"Small-Signal" Discrete Transistor Removal/Replacement
5
Power Output, Transistor Device Removal/Replacement
5
Diode Removal/Replacement
5
Specification
6
Application Range
6
Requirement for Test
6
Test Method
6
Video Resolutions
8
Component Input
8
HDMI Input(PC/DTV)
9
HDMI Input
10
DTV Input
10
USB Input
10
3D Input Mode
10
Adjustment Instruction
11
Main PCB Check Process
11
Boot File Download
11
Usb Download
11
ADC Process
12
EDID Download
12
EDID Data
12
Function Check
12
Total Assembly Line Process
13
White Balance Adjustment
13
Auto-Control Interface and Directions
13
Auto Adjustment Map
13
3D Function Test
14
IR Emitter Inspection
14
Outgoing Condition Configuration
14
Manual W/B Process Using Adjust Remote Control
14
HI-POT Auto-Check Preparation
15
HI-POT Auto-Check
15
Model Name & Serial Number D/L
15
Signal Table
15
MAC Address
16
LAN Inspection
16
Lan Port Inspection
16
LAN Inspection Solution
16
Block Diagram
17
CIS T2/C/S2 3D Model
17
CIS T2/C/S2 2D Model
18
EU T2/C/S2 2D Model
19
EU T/C 2D Model
20
Exploded View
21
Hdmi (Rear 1 / Side 1 Mhl)
24
Lvds
28
CI Region
29
CI Ts Input
29
Ethernet
30
DVB-S2 LNB Part Allegro
31
Headphone
33
Rs-232C 4Pin
35
TP for EU
36
Audio Amp(Ti)
40
Trouble Shooting Guided
43
Contents of Standard Repair Process
44
Video Error
45
No Video / Normal Audio
45
No Video / no Audio
46
Tuning Fail, Picture Broken/ Freezing
47
Color Error
49
Power Error
51
No Power
51
Off When On, off While Viewing, Power Auto On/Off
52
Audio Error
53
No Audio/ Normal Video
53
Wrecked Audio / Discontinuation / Noise
54
Function Error
55
Remote Control & Local Switch Checking
55
External Device Recognition Error
56
Noise
57
Circuit Noise, Mechanical Noise
57
Exterior Defect
58
Contents of Standard Repair Process Detail Technical Manual
59
Video Error_No Video/Normal Audio
61
Check Back Light on with Naked Eye
61
Power Board to LED Back Light Voltage
62
Check White Balance Value
63
Video Error_No Video/ Audio
64
Power Board Voltage Measuring Method
64
TUNER Input Signal Strength Checking Method
65
LCD-TV Version Checking Method
66
Check and Replace Link Cable(LVDS) and Contact Condition
68
Adjustment Test Pattern - ADJ Key
69
Exchange T-Con Board
70
Exchange the Module
72
Power Error _No Power
74
Check Front Display LED
74
Check Power Input Voltage and ST-BY 3.5V
75
Checking Method When Power Is on
76
POWER off MODE Checking Method
77
Checking Method in Menu When There Is no Audio
78
Voltage and Speaker Checking Method When There Is no Audio
79
Remote Controller Operation Checking Method
80

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LG 32LF550U Service Manual (81 pages)

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