Re: Hitachi 32HXC01 - another Vestel joke

Hi guy's. I'm after a bit of advice. I've been looking for a replacement 17MB82-1a 23111172 to replace my dead board (PSU and LED Board appear OK) but can't find anything available anywhere.

If I get a 17MB82-1a and swap out the 2 eprom chips would this be enough to get it to power up? (or is it likely to be the winbond bios chip's that have failed)

TIA

Re: Blade BM7000s Satellite reciever PSU issue

my thought exactly, there's 2, a 1000uf @ 25v plus a 470uf @ 16v (which i've already swapped out for a new components) and made no difference.
I've ordered a LM2596 adjustable step-down buck converter from ebay, I'll use that to regulate the 11.1v back down to 7v and see if that helps, it's not an ideal fix but will at least verify weather or not I need a new PSU or it's something else completely.
Cheers all.

Re: Blade BM7000s Satellite reciever PSU issue

appears to be to a pair of 31DF Diodes from the larger transformer
Yes, I've reset several times

Wouldnt 11.1v be a little high for a 7v rail with no load?
also the front buttons and remote appear to work from the rescue flash screen

I do wish i had a working unit for voltage comparison...

Thanks for your help guy's

Re: Blade BM7000s Satellite reciever PSU issue

Hi all, I'm hoping someone here may be able to help me regarding my 7000S.
I've a completely different issue where the box boots fine but does not respond to either the remote or the front buttons.
I've checked the PSU voltages and am concerned by one and wonder if anybody had tested there's during either a repair or PSU replacement.

The board has outputs printed as follows:-
Gnd my value 0.0v
23v my value 25.0v
12v my value 12.3v
Gnd my value 0.0v
7.0v my value...