DOWNLOAD LG 32LD333H (CHASSIS:LA06H) Service Manual ↓ Size: 3.69 MB | Pages: 62 in PDF or view online for FREE

Model
32LD333H (CHASSIS:LA06H)
Pages
62
Size
3.69 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32ld333h-chassis-la06h.pdf
Date
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LG 32LD333H (CHASSIS:LA06H) Service Manual ▷ View online

No OSD Trouble Shooting guide
Check LVDS Cable
Check LCD Module 
Control board
Y
Replace Cable
N
Check P401 All
Voltage Level (5V, 12V, 16V)
Check power connector and 
RL_ON(pin1) signal OK ?
Replace Power board
N
Y
Check Q409 output Voltage(12V)
Y
Check Q409 application circuit or 
replace Q409
N
Check TU5001 Pin11(Video output)
Can you see the normal signal?
Check tuner 5V power L5002 
YES
NO
Could you measure voltage of TU5001 & IIC lines?
Are they all normal?
Check Mstar LVDS output
NO
You should check power line 
& IIC lines.
YES
You should replace TUNER.
NO
Check IC401
Analog RF Video Trouble shooting guide
YES
YES
Check tuner 3.3V power L5003 
Replace L5003
NO
Replace IC401
Replace L5002
YES
NO
Check tuner 1.2V power IC5001
2pin : 1.2V 
Replace IC5001
NO
Check RF cable & signal
YES
NO
Replace 
Mstar(IC101) or 
main board
Digital RF Trouble shooting guide
Check RF Cable
Check IIC Signal
TU5001  #7, 8 Pin
Check IIC line and level shifter 
circuit
Y
N
Check Tuner 5V Power
IC401
Replace IC401
Y
N
Y
Check X201
and application circuit
Check IF Signal
TU5001  #10, 11 Pin
Check tuner application circuit or 
replace tuner.
N
Y
Replace X201 
N
Y
Replace IC101
Check JK3100
Can you see the normal waveform?
NO
JK3100 may have problem. Replace this Jack.
Check the input of Mstar(IC101).
Measure waveform at C227 because it’s more easy to check.
Can you see the normal waveform?
YES
This board has big problem because Main chip (Mstar) have some troubles.
After checking thoroughly all path once again, You should decide to replace Mstar or not.
AV Video Trouble shooting guide
YES
Check input signal format.
Is it supported?
YES
Check AC cable for damage 
For damage or open conductor
YES
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