LG 72LM9500-DA (CHASSIS:LT23J) Service Manual ▷ View online
- 21 -
No Raster on USB Signal
Check Input source Cable And Jack
Re-soldering or
Change the defect part
Repeat [A], & [B] Process
Pass
Check the Input/Output
Of JK4300, JK4302, JK4303
Fail
Pass
Check the Input/Output
Of IC101
Fail
Re-soldering or
Change the defect part
Pass
Check the Input/Output
Of IC4200, IC4305, IC4306
Fail
Re-soldering or
Change the defect part
Pass
- 22 -
No Raster on PC Signal
Check Input source Cable And Jack
Re-soldering or
Change the defect part
Repeat [A], & [B] Process
Pass
Check the Input/Output
Of JK3603
Fail
Pass
Check the Input/Output
Of IC101
Fail
Re-soldering or
Change the defect part
Pass
- 23 -
No Raster on COMPONENT Signal
Check Input source
Cable And Jack
Re-soldering or
Change the defect part
Pass
Check the Input/Output
Of IC101
Fail
Re-soldering or
Change the defect part
Repeat [A], & [B] Process
Check The Input/Output
Of JK3801
Fail
Pass
No Raster on HDMI Signal
Check Input source
Cable And Jack
Check the Input/Output
Of JK3200, , JK3201, JK3202, JK3203
Fail
Re-soldering or
Change the defect part
Pass
Pass
Pass
Check the Input/Output
Of IC101
Fail
Re-soldering or
Change the defect part
Repeat [A], & [B] Process
Pass
Check the Input/Output
Of IC3201
Fail
Re-soldering or
Change the defect part
Pass
Check the Instart Menu
EDID D/L Status
Fail
Re-download EDID Data]
(Adjust Menu EDID D/L)
- 24 -
No Raster On AV Video Signal
No Signal On TV(RF) Signal
Check Input source
Cable And Jack
Check Input source
Cable And Jack
Pass
Check The Input/Output
Of JK3800
Pass
Re-soldering or
Change the defect part
Pass
Fail
Repeat [A], & [B] Process
Check the Input/Output
Of IC101
Fail
Re-soldering or
Change the defect part
Pass
Check The Input/Output
Of TU6504
Pass
Re-soldering or
Change the defect part
Pass
Fail
Check the Input/Output
Of IC101
Fail
Re-soldering or
Change the defect part
Repeat [A], & [B] Process
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