DOWNLOAD LG 32LE4300 (CHASSIS:LT01D) Service Manual ↓ Size: 11.63 MB | Pages: 57 in PDF or view online for FREE

Model
32LE4300 (CHASSIS:LT01D)
Pages
57
Size
11.63 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32le4300-chassis-lt01d.pdf
Date
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4. AV Video
Check input signal format.
Is it supported?
Check AV Cable for damage
for damage or open conductor
Check JK3801
CVBS Signal Line
R3817,R3811
ok
ok
ok
No
Replace Jack
5. Component Video
Check input signal format.
Is it supported?
Check Component Cable
for damage or open conductor.
Check JK3801
Y/PB/PR signal Line
ok
ok
ok
No
Replace Jack
ok
Check CVBS_DET Signal
Replace R3802 or R3803
No
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
No
Check COMP_DET Signal
Replace R3804 or R3805
No
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
ok
No
6. RGB Video
Check input signal format.
Is it supported?
Check RGB Cable conductors
for damage or open conductor
Check EDID & EEPROM
IC1105 I2C Signal
R1141, R1143(SDA,SCL)
Check JK1104
H/V_Sync/R/G/B Signal Line
ok
ok
ok
No
No
Replace the defective IC or re-download EDID data
ok
Replace Jack
Check DSUB_DET
Replace R1146 or R1147
No
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
ok
No
7. HDMI Video
Check input signal format.
Is it supported?
Check HDMI Cable conductors
for damage or open conductor.
Check EDID & EEPROM
IC801*, IC804**
I2C Signal
Check JK802, JK903
ok
ok
ok
No
No
Replace the defective IC or re-download EDID data
Check HDCP Key NVRAM(IC103)
Power & I2C Signal
Replace the defective IC.
ok
No
Replace Jack
Check HDMI Signal
Check other set
If no problem, check signal line
ok
No
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
ok
No
Replace Main Board
No
Check HDMI_DET(HPD)
No
ok
Replace R802*,R804*,R830*,R896*,Q802*
Replace R835**,R837**,R862**,R897**,Q803**
* HDMI1
** HDMI2
* HDMI1
** HDMI2
8. All Source Audio
Check the TV Speaker Menu
(Menu -> Sound -> TV Speaker)
On
ok
ok
Check Output Signal P501
1, 2, 3, 4 pin.
Replace Audio AMP IC(IC501)
ok
No
Check Connector & P501
Replace connector
if found to be damaged.
ok
No
Check speaker resistance
and connector damage.
Replace speaker.
ok
No
Off
Toggle the Menu
Check AMP IC(IC501) Power
*20V, 3.3V, 1.8V.
No
Check Regulator IC404
*20V Voltage is dependent on Model and PSU
32LE5300-DA => 24V
Check Mstar I2S Output
R503, R504, R505
No
Check signal line. Or replace Mstar(IC101)
Check Mstar AUDIO_MASTER_CLK
TP502
No
Replace Mstar(IC101) or Main Board.
ok
Check AMP I2C Line
R506, R507
No
Check signal line. Or replace Mstar(IC101)
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