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Acoustic Solutions LCD32762HDF stuck in standby

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Dansford:
Hi Thanks For Replys.

Sparky: taken out c877, c878 and measured them, got no readings, possibly my error. I dont have a capacitance meter however took it to the repair shop and the guy said the two were reading correct measurements so were fine :dubbio:. I do have a digital and analogue meter tho :happy:.

Stellaman: would you perhaps know the values of the caps and/or their positions? Also not to sound daft but 'smoothing block'; is that the large snap in capacitor (150uf 450v - Neg). I was at electronics shop and he mentioned it but I cant remember which one  :wacko:.

I'll try to check for some faulty capacitors tomorrow, I started today and think I may have found some but I have to double check. When I get somewhere I'll post results  :thumbup:.

Thanks in advance for all help   :biggrin2:.

Dansford.

stellaman:
Check C817/892/801/901. All are 85 degree caps on the power supply. Replace with 105 degree caps.

Dansford:
Hi, Thanks Stellaman, those were among the capacitors I checked, and will replace them anyway :biggrin2:.

UPDATE: Just an update of what I've found so far. I've removed a few caps most likely to be at fault aswell as checking surrounding others, to be on the safe side, and I believe I've found some faulty/leaky capacitors.

Locations and values are:
C892 - 33uf 50v
C801 - 33uf 50v
C901 - 4.7uf 50v
C840 - 33uf 50v
C881 - 10uf 63v
C834 - 100uf 50v
C835 - 100uf 50v
and C819 (150uf 450v - Neg) - though I'll have to triple check this one!

I'll buy the caps and replace them asap, then I'll check the C878 and C877 just to be on the safe side, but if it boots up nicely no complaints  :thumbup:. Dont mind replacing the caps - just in case of errors as well as avoiding future problems, but my testing should have been accurate.

Dansford

sparky:
i thought you didn't have cap meter 'if i was you
i would put 2x15nf new caps c878  c877 and try it

sparky:
have you sorted this one yet

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