LG 55LM4600 (CHASSIS:LT21B) Service Manual ▷ View online
- 21 -
No Raster
: [B] Process
Check LED status
On Display Unit
Repeat A PROCESS
Pass
Fail
Check Output of IC1401
Change IC1401
Fail
Change Inverter Connector
Or Inverter
Fail
Pass
Fail
Pass
Change LVDS Cable
Fail
Check LVDS Cable
Pass
Check Panel Link Cable
Or Module
Change Panel Link Cable
Or Module
Check Inverter Connector
Or Inverter
Pass
- 22 -
No Raster on PC Signal
Check Input source Cable And Jack
Pass
Re-soldering or
Change the defect part
Repeat [A], & [B] Process
Pass
Check the Input/Output
Of JK1104
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
Pass
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 JK1601, JK1602
Fail
Pass
No Raster on HDMI Signal
Check Input source
Cable And Jack
Pass
Check the Input/Output
Of JK801, JK802, JK803
Fail
Re-soldering or
Change the defect part
Pass
Pass
Check the Input/Output
Of IC103
Fail
Re-soldering or
Change the defect part.
Re-download HDCP
Pass
Pass
Check the Input/Output
Of IC101
Fail
Re-soldering or
Change the defect part
Repeat [A], & [B] Process
Pass
Check the Instart Menu
EDID D/L Status
Fail
Re-download EDID Data]
(Adjust Menu EDID D/L)
Pass
- 24 -
No Raster On AV Video Signal
No Signal On TV(RF) Signal
Check Input source
Cable And Jack
Pass
Check Input source
Cable And Jack
Pass
Check The Input/Output
Of JK1601
Pass
Re-soldering or
Change the defect part
Pass
Fail
Pass
Repeat [A], & [B] Process
Check the Input/Output
Of IC101
Fail
Re-soldering or
Change the defect part
Pass
Check The Input/Output
Of TU3704
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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