DOWNLOAD LG 32LV3500-TG / 32LV350Y-TG / 32LV3530-TK (CHASSIS:LB01M) Service Manual ↓ Size: 7.16 MB | Pages: 40 in PDF or view online for FREE

Model
32LV3500-TG 32LV350Y-TG 32LV3530-TK (CHASSIS:LB01M)
Pages
40
Size
7.16 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32lv3500-tg-32lv350y-tg-32lv3530-tk-chassis-lb01m.pdf
Date
PREV: LG 32LV3500-TA / 32LV3530 (CHASSIS:LB01U) Service Manual

LG 32LV3500-TG / 32LV350Y-TG / 32LV3530-TK (CHASSIS:LB01M) Service Manual ▷ View online

- 14 -
1. Power-up boot check
TROUBLESHOOTING
Check stand-by Voltage.
P403 9~12pin : +3.5V_ST
Check Power connector.
Main B/D 3.5V Line
Short Check
Check X201 clock.
24 MHz
Replace X201.
Check P403 PWR_ON.
1pin : 3.3V
Replace Mstar(IC101) or Main board.
Check Multi Voltage.
P403 2pin:24V,  17pin:12V
Replace Power Board.
Check Inverter Control & Error Out.  
P403 18 pin : High
P403 24 pin : low
Check Power Board or Module.
Check IC402/3/7 Output Voltage.
IC402 : 2.5V
IC403 : 1.1V
IC407 : 1.5V
Q403 : 3.3V
Replace IC402/3/7, Q403.
Re-download software.
Check Micom Voltage.
L404 : +3.5V
Replace L404.
Check LVDS Power Voltage.
Q409 : 12V
Replace Q409.
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
Change Module.
ok
ok
ok
ok
ok
ok
ok
ok
ok
No
No
No
No
No
No
No
No
No
No
ok
Replace Power board.
ok
- 15 -
2. Digital TV Video
Check RF Cable & Signal
Check Tuner 3.3V Power
L3703
Replace L3703.
Check Tuner 1.8V Power 
IC3703  2 pin : 1.8V
Check IF_P/N Signal
TU3700 10/11  Pin
Replace IC3703. 
Check Mstar LVDS Output.
Replace Mstar(IC101) o r Main Board.
ok
ok
ok
ok
No
No
No
No
Bad Tuner. Replace T uner.
3. Analog TV Video
Check RF Cable & Signal.
Check Tuner 3.3V Power.
L3703
Replace L3703.
Check Tuner 1.8V Power.
IC3703 2 pin : 1.8V
Check CVBS Signal.
TU3700 8 Pin
Replace IC3703.
Check Mstar LVDS Output.
Replace Mstar(IC101) or Main Board.
ok
ok
ok
ok
No
No
No
No
Bad Tuner. Replace Tuner.
- 16 -
4. AV Video
Check input signal format.
Is it supported?
Check AV Cable for damage
for damage or open conductor.
Check JK1604 , JK9901
CVBS Signal  Line
R246, R4016. 
ok
ok
ok
No
Replace Jack.
ok
Check CVBS_DET Signal.
Replace R9915 or R1666. 
 
No
Check Mstar LVDS Output.
Replace Mstar(IC101) or Main Board.
No
5. Component Video
Check input signal format.
Is it supported?
Check Component Cable
for damage or open conductor.
Check JK1601 or 1603
Y/PB/ PR signal Line.
ok
ok
ok
No
Replace Jack.
Check COMP_DET Signal.
Replac e R1614, R4223 or  R1615.
No
Check Mstar LVDS Output.
Replace Mstar(IC101) o r Main Board.
ok
No
- 17 -
6. RGB Video
Check input signal format.
Is it supported?
Check RGB Cable conductors
for damage or open conductor.
Check EDID
I2C Signal
R138, R139(SDA,SCL).
Check JK1104
H/V_Sync/R/G/B Signal Line.
ok
ok
ok
No
No
R
e-download EDID data ,Replace Mstar(IC101) or Main Board.
ok
Replace Jack.
Check DSUB_DET.
Replac e R1146 or  R1147.
No
Check Mstar LVDS Output.
Replace Mstar(IC101) or Main board.
ok
No
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