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Caver HR-895 receiver dead / needs help.

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disneyjoe7

Newbie

Posts: 21

Joined: Wed Jul 04, 2007 8:07 pm

Location: Orlando, FL

Post Mon Jul 28, 2008 7:28 pm

Caver HR-895 receiver dead / needs help.

Hello all, glad to have something Carver in the house... makes me feel part of the family :)

This is a Krama you fix it from another Polk Forum member.

Pluged in displays a 000 code?

Turned on displays 000 code?

Pulled covers found this.

+29v +.5v BAD

-20v -30v Bad?

+24v +29v Bad?

+/-35v +/-33.25v

+/-50v +/-48.50v


Can't find anything bad a far as transistors but some like a bit cooked. See pictures below.


134_3454.JPG
000 display off
134_3454.JPG (22.07 KiB) Viewed 435 times


134_3457.JPG
000 display on
134_3457.JPG (91.84 KiB) Viewed 435 times


134_3459.JPG
The worst area believe theres a power resistor which was cooked here.
134_3459.JPG (96.98 KiB) Viewed 434 times


134_3460.JPG
Other area which looks cooked but nothing found bad. Mainly the 12v regulators which look like they get warm.
134_3460.JPG (115.02 KiB) Viewed 434 times
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OBI56

User avatar

SILVER-7 TUBE AMP

Posts: 4964

Joined: Sat Oct 20, 2007 12:52 am

Location: You ... OFF MY PLANET!

Post Mon Jul 28, 2008 8:04 pm

Re: Caver HR-895 receiver dead / needs help.

Disneyjoe, sorry, but we don't have a service manual for the HR-895 unless some member happens to have one.
Why let facts or common sense get in the way of your opinions.
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disneyjoe7

Newbie

Posts: 21

Joined: Wed Jul 04, 2007 8:07 pm

Location: Orlando, FL

Post Mon Jul 28, 2008 8:39 pm

Re: Caver HR-895 receiver dead / needs help.

Well I check for any short on that +29v output, this got to the problem.
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disneyjoe7

Newbie

Posts: 21

Joined: Wed Jul 04, 2007 8:07 pm

Location: Orlando, FL

Post Tue Jul 29, 2008 5:51 pm

Re: Caver HR-895 receiver dead / needs help.

Got to work :D

I resoldered another repair on the ACCD / Hologram board for the voltage regulators. Still couldn't get that voltage up, removed any wire which was using this voltage still dead. Found a resistor which was dead / open looks like it could be removed with a wire bridge also. So this is what I did, working.

Still have the 0:00 thing what's that all about, anyone know?

Steve

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