LG Electronics
55LA625C-ZA CI Region, Option name of this page CI SLOT because of Hong Kong
Troubleshooting
Specification
Block Diagram
Signal Table
30Pin LVDS Connector
Total Assembly line process
Adjustment Instruction
IC Remove/Replacement
Safety Precautions
From Lips & Power B/D
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Contents
SERVICE MANUAL
READ THE SAFETY PRECAUTIONS IN THIS MANUAL
LED TV
MODEL 55LA625C 55LA625C-ZA
Only for training and service purposes
Copyright
LG Electronics. Inc. All rights reserved
LGE Internal Use Only
SAFETY PRECAUTIONS
General Guidance
Before returning the receiver to the customer
Leakage Current Cold CheckAntenna Cold Check
SERVICING PRECAUTIONS
Electrostatically Sensitive ES Devices
IC Remove/Replacement
Replacement
Small-Signal Discrete Transistor Removal/Replacement
Removal
SPECIFICATION
4. Model General Specification
1. Application range
3. Test method
Symbolrate 4.0Msymbols/s to 7.2Msymbols/s
DVB-T
Guard IntervalBitrateMbit/s
1/4, 1/8, 1/16, 1/32
5. Video resolutions 2D
5.1. Component Input Y, CB/PB, CR/PR
5.2. RGB Input PC - HD Model
5.3. RGB Input PC - FHD Model
5.3. HDMI InputPC/DTV
PCDVI
ADJUSTMENT INSTRUCTION
1. Application Range
2. Designation
3. Main PCB check process
After downloading, have to adjust Tool Option again
3.1. ADC Process
3.2. EDID Download
3.3. EDID data
4. Total Assembly line process
4.1. White Balance adjustment
3.4 Function Check
5. GND and HI-POT Test
6. Model name & Serial number D/L
6.1. Signal Table
4.5. Outgoing condition Configuration
7. CI+ key download
6.3. Method & notice
7.1. Communication Prot connection
7.2. CI+ Key Download
8. Check Commercial Features
8.1. External speaker8OHM, 1W, Single-End
8.2. IR OUT
TROUBLE SHOOTING GUIDE
1. Check the booting Voltage
2. Digital TV Video
3. Analog TV Video
4. AV Video
5. RGB Video
6. HDMI Video
7. Audio of All iput
8. TV Audio
9. AV Audio
10. RGB Audio
BLOCK DIAGRAM
S7LR2 LGE211A-T8
Tuner DVB- T/C
EXPLODED VIEW
2013 S7LR2
2012 . 11
Copyright 2013 LG Electronics. Inc. All rights reserved
SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
VDDC
Normal
FROM LIPS & POWER B/D
PowerDET
+1.5VDDR
+3.3VNormal780 mA
IC501
NTP-7500L
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
CONTROL IR & LED
LVDS
51Pin LVDS Connector For FHD 60Hz
30Pin LVDS Connector
FOR FHD REVERSE10bit Change in S7LR
HDMI EEPROM
HDMI1
HDMI2
For CEC
RS232C
RS - 232C
HEADPHONE
RGB PC
SIDE USB
PC AUDIO
S7LRDIVXMS10
DDR256
DDR13331GHYNIX
EAN61828901
SFLASH
REAR COMPONENT PHONE JACK
F u l l
S c a r t
SCART AUDIO MUTE
EXTSPEAKERAMP
SPEAKER OUT JACK
EXTSPK
IC1800
CI POWER ENABLE CONTROL
CI Region
Option name of this page CI SLOT because of Hong Kong
PCMCI
GP4RGLOBALTUNERBLOCK
TU2602
TU2603
TDSS-G101D
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