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

AV/Component/RGB-PC Audio(in)Trouble shooting guide  
Check JK3100, JK1102.
Can you see the normal waveform?
NO
JK3801, JK1102. may have problem. Replace this Jack.
YES
Check the input of Mstar(IC101).Measure waveform at 
C236,C237,C238,C239,C4059,C4060,C244,C245
because it’s more easy to check. Can you see the normal waveform?
NO
After checking audio signal line, you should decide to replace item or not.
HDMI Audio(in) Trouble shooting guide
Check input connect JK801/JK802
Can you see the normal waveform?
JK801/JK802 may have problem. Replace this Jack.
Check HDCP key NVRAM(IC103)
Power & I2C signal
After checking the Power of this chip, you should decide to replace this or not.
YES
NO
NO
Audio out Trouble shooting guide
Check the output of Mstar(IC101).
Measure waveform at R503, R504, R505. 
because it’s more easy to check. Can you see the normal signal?
Check the input (Pin 17,18,19) of NTP7100(IC501).
Can you see the normal waveform?
YES
NO
NO
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.
After checking audio signal line, you should decide to replace item or 
not.
YES
Check the output (Pin 30,31,36,37,47,48,53,54) of NTP7100((IC501).
Can you see the normal waveform?
NO
YES
After checking the Power & I2C & Reset of this chip, 
you should decide to replace this or not.
Check the speaker output wafer P501.
Can you see the normal waveform?
NO
YES
After checking audio signal line, you should decide to replace item or not.
Check the connector & Speaker
LG Electronics/ BS Division 
Commercial Display H/W  Gr. 
xxLD340H-UA Block Diagram
< Contents >
Video Signal Block
Video Signal Block
Audio Signal Block
Audio Signal Block
Flash  Block & Reset
Flash  Block & Reset
I2C   Block
I2C   Block
POWER Block
POWER Block
Overall Block Diagram
Overall Block Diagram
M+S Output   Block(37”/42”)
M+S Output   Block(37”/42”)
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