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55LA625C-ZA service manual
Models:
55LA625C-ZA
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Troubleshooting
Specifications
Block Diagram
IC Remove/Replacement
Outgoing condition Configuration
Total Assembly line process
Adjustment Instruction
Resolution
Symbolrate 4.0Msymbols/s to 7.2Msymbols/s
How to
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Contents
LED TV
SERVICE MANUAL
READ THE SAFETY PRECAUTIONS IN THIS MANUAL
MODEL 55LA625C 55LA625C-ZA
LG Electronics. Inc. All rights reserved
Only for training and service purposes
Copyright
LGE Internal Use Only
Before returning the receiver to the customer
SAFETY PRECAUTIONS
General Guidance
Leakage Current Cold CheckAntenna Cold Check
SERVICING PRECAUTIONS
Electrostatically Sensitive ES Devices
Small-Signal Discrete Transistor Removal/Replacement
IC Remove/Replacement
Replacement
Removal
1. Application range
SPECIFICATION
4. Model General Specification
3. Test method
Interactive mode support
Specification
Symbolrate 4.0Msymbols/s to 7.2Msymbols/s
Only for training and service purposes
5.2. RGB Input PC - HD Model
5. Video resolutions 2D
5.1. Component Input Y, CB/PB, CR/PR
5.3. RGB Input PC - FHD Model
5.3. HDMI InputPC/DTV
PCDVI
2. Designation
ADJUSTMENT INSTRUCTION
1. Application Range
3. Main PCB check process
3.2. EDID Download
After downloading, have to adjust Tool Option again
3.1. ADC Process
3.3. EDID data
3.4 Function Check
4. Total Assembly line process
4.1. White Balance adjustment
6.1. Signal Table
5. GND and HI-POT Test
6. Model name & Serial number D/L
4.5. Outgoing condition Configuration
7.1. Communication Prot connection
7. CI+ key download
6.3. Method & notice
7.2. CI+ Key Download
8.2. IR OUT
8. Check Commercial Features
8.1. External speaker8OHM, 1W, Single-End
2. Digital TV Video
TROUBLE SHOOTING GUIDE
1. Check the booting Voltage
Only for training and service purposes
Only for training and service purposes
3. Analog TV Video
4. AV Video
Copyright
Only for training and service purposes
5. RGB Video
6. HDMI Video
Copyright
Only for training and service purposes
7. Audio of All iput
8. TV Audio
Copyright
Only for training and service purposes
9. AV Audio
10. RGB Audio
Copyright
Tuner DVB- T/C
BLOCK DIAGRAM
S7LR2 LGE211A-T8
EXPLODED VIEW
2012 . 11
Only for training and service purposes
2013 S7LR2
Copyright 2013 LG Electronics. Inc. All rights reserved
Only for training and service purposes
SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
VDDC
+1.5VDDR
FROM LIPS & POWER B/D
PowerDET
+3.3VNormal780 mA
IC501
NTP-7500L
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION
Only for training and service purposes
30Pin LVDS Connector
LVDS
51Pin LVDS Connector For FHD 60Hz
Only for training and service purposes
HDMI1
Only for training and service purposes
HDMI EEPROM
HDMI2
2012 . 11
RS232C
2013 S7LR2
RS - 232C
RGB PC
Only for training and service purposes
HEADPHONE
SIDE USB
2013 S7LR2
Only for training and service purposes
S7LRDIVXMS10
2012 . 11
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION
Only for training and service purposes
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC
Only for training and service purposes
EXTSPEAKERAMP
SPEAKER OUT JACK
2013 S7LR2
CI Region
Only for training and service purposes
CI POWER ENABLE CONTROL
Option name of this page CI SLOT because of Hong Kong
TU2602
GP4RGLOBALTUNERBLOCK
Only for training and service purposes
TU2603