Philips 42PFL5704D/F7 - TROUBLESHOOTING; Troubleshooting Flowcharts

8-1 A9PH1TR
TROUBLESHOOTING
7116 Pin(1,14) 12V
7116 Pin(12) 1.2V
7117 Pin(1,14) 12V
7117 Pin(12) 3.3V
No work (LED is off)
No raster (picture too dim)
FLOW CHART NO.1
FLOW CHART NO.2
IS 3.3V voltage supplied to Pin(3,5) of 1C02 on the
SSB?
Check Module IR.
Ye s
Ye s
No
Ye s
Check if power switch is normal.
Replace Power switch.
Replace Power Supply Module.
No
Ye s
IS 3.3V voltage supplied to Pin(1) of 1M95 on the
SSB?
No
Replace Power Supply Module.
Replace Power Supply Module.
No
Replace SSB.
Replace SSB.
Ye s
Check if clock source 1E07.
Is 12V voltage supplied to Pin(1,2) of 1M99 and
Pin(6,7,8,9,11) of 1M95 on the SSB?
No picture
FLOW CHART NO.3
Is 3.3V voltage supplied to Pin(1) of 1M95 on the
SSB?
No
Replace 1E07.
No
Ye s
Check if RGB, clk, H/V and DE signal output 128 bit
TTL.
Try to replace Flash Rom.
No
Ye s
Check line filter on LVDS signal line.
Ye s
Replace LVDS cable.
Replace bad line filter.
No
Check the circuit around each regulator and
eliminate short and open situation.
No
Ye s
Check if working voltage each pin of 7116 and each
pin of 7117 on the SSB.