I have got defective 47PFL5604H which has no backlight but it turns on and has audio output to speakers, LCD works. Connecting SDM service pin it flashes Fault code 17
Power Board: DETA DPS-298CP-2A (Philips S272217100701/S272217100702)
History: The TV previously had issues that in hot summer it sometimes didn't turn on. Finally it had blown mains fuse when turning on while TV fuse remain intact. Upon inspection large cap(Rubycon 450V 150uF ) C808 under heatshield seems to be leaking at side and visible black soot but no other damage. Other capacitors are quality Rubycon or Nichicon series. Interesting that NTC4(thermistor) is attached to PCB and not to heatsink.
Replacing large cap didn't help and still no backlight what else to check? Maybe NTC kicks some protection?
As rebuild kit for this board there is these parts included but would not like to change all blindly if it is not bad.
Repair kits include:
D907,D911
C961,C705,C709,C731,C734
C316?,C371?
D908?,IC901,Q801?
Power Board: DETA DPS-298CP-2A (Philips S272217100701/S272217100702)
Code:
Error 17 (Invertor or Display Supply). Here the status of the “Power OK” is checked by software, no protection will occur during failure of the invertor or display supply (no picture), only error logging. LED blinking of LAYER 1 error = 3 in CSM, in SDM this gives LAYER 2 error = 17.
Replacing large cap didn't help and still no backlight what else to check? Maybe NTC kicks some protection?
As rebuild kit for this board there is these parts included but would not like to change all blindly if it is not bad.
Repair kits include:
D907,D911
C961,C705,C709,C731,C734
C316?,C371?
D908?,IC901,Q801?
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