Re: Vestel 17PW16-2 Fault Dead

Thank you for the response m8...
I bought a PSU reliability repair kit, which included !C829 the 78905 reg, and It also provided Q809 (BC337), along with a few other components..
The board that I have Doesn't have the 7805 reg fitted to it, so the transistor BC337 is the 5v reg.
Im getting some voltages on the secondary side of the transformer now, but weirdly, there isn't and hasn't been any standby LED 'Action'!!
But when I disconnect the plug I mentioned above, Im getting power to the backlights...
I contacted...

Re: Vestel 17PW16-2 Fault Dead

Thanks for responding m8... Yes the 3.3V standby voltage is there on Pl815....
I didnt have any voltages on the secondary side, until i replaced a few parts that I got in a kit.. Now Im getting most of them, and the Backlight will come on, when i Disconnect PL803..!!
Regards, A~BT

Re: Vestel 17PW16-2 Fault Dead

Nope...If anyone has ANY ideas, some help would be much appreciated..
Regards, A~BT

Re: Vestel 17PW16-2 Fault Dead

Update--- Ive managed 2 get a hold of a schematic diagram, and its the 5v s/by on pl815 that is missing.!!
Fingers crossed when I jump the voltage, the set will come on... 1

As suggested above, The p/supply has issues...
The fault 2 begin with was a completely dead set, but the Fuse is intacked, and there is voltage on the primary side...
I have changed quite a few parts (c877 c878 c817 c892 c801 c901 & Q809. Ive also looked for dry joints, or cracks in the board, just 2 be thorough.. I HAVE Found thou, that IF you disconnect PL803 from the p/s, then the Backlights work?!!!
Can anyone shed any light on the matter?
Regards in advance, A~BT

Re: vestal 17pw16-2

Im having issues with the exact same board, but I have a different fault...
The set wont come off standby.. I have replaced ovr 15 parts (All new) to no effect...
Altho a few of the voltages have came up, the 5v standby voltage is still missing...
Any ideas..?
Regards in advance Aaron

Re: New Members - please post your introductions here

Hi there folks, Im an AV technician from Scotland..
I have Always been into Electronics from an early age, and when I was fired by a Company (Robertsons Electrical), I was a Bench engineer, as well as a Field service engineer too..
I am looking forwards to being part of the Forum...
Many Regards, A~BT