JV Home Theater TH-R3

[philjmor]

Hi,

New here so please treat me gently, I'm from the UK and have some experience with Bad Capacitors having recently replaced 2 on a Satellite Pace Sky Plus box successfully. I got that going only to find my home theater DVD Recorder box would not switch on and Ticks, hence I suspect a capacitor 400v 100mF between fan and heat sink in pictures, though it's not bulging/oozing, and I'm assuming the white stuff at the bottom of it is cement/glue? Does anyone have experience of this System or similar issues? I'd appreciate any views
http://www.veneziaphoto.co.uk/index....d=70&Itemid=57





Many Thanks
Phil

[turbozutek]

Re: JV Home Theater TH-R3

I'd be more worried about the green Samaxons after the primary side. That whole range of caps were garbage.

The high voltage primary cap very rarely fails.

Chris...

[Scenic]

Re: JV Home Theater TH-R3

Indeed.. Samxon GF series were total garbage. They fail left and right.

Ticking PSU usually means it's either overloaded (i.e. short somewhere on the output) or the startup cap (primary side, usually in the ballpark of 47uF 35-50V) has gone bad.
It could be the tiny cap next to the big primary filter cap. Seeing how toasty the PCB is around the heatsink, it wouldn't suprise me if that little cap has been baked dry..

[Agent24]

Re: JV Home Theater TH-R3

Pictures? All I get it some site about photography.

Can you upload the pictures onto the forum please?

[Scenic]

Re: JV Home Theater TH-R3

no probs here.
Attached them anyways.

[Agent24]

Re: JV Home Theater TH-R3

Whoops, turned out it was my fault. Part of my security\ad-blocking was causing havoc with the page...

[999999999]

Re: JV Home Theater TH-R3

Might not be caps at all, does it have an IC or transistor pairs to drive speakers? If so I'd check there next considering no visibly bad caps.