[TechAssist] Re: update Toshiba 50H82 , TAC0263 dead, "click",power LED only

  • From: becyn <becyn@xxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Fri, 11 Mar 2005 16:40:33 -0500

COuld be the secondary distro part of the fly or a bad crt.
I had a crt that had cracked on it's face and all the fluid filled up the
in the neck. I didn't notice it at all, it looked normal.  Only after 
pulling the HV
to isolate the crts did I find it to be the culpret.

Jim McVey
McVey Alltronix   
327 Broadway
Newburgh N.Y. 12550

"If it doesn't play...
CALL MCVEY !!!!!!"
Factory authorized
service for over 20
major brands.
845 561 8383
(Last of the Mohegans)

Phil Bader wrote:

>update:
>I found a pico fuse open, F470 (2A). This fuses a main +120V source that 
>goes a lot of places, like the HOT/Flyback, all three SVM modules. The 
>HOT is good. I don't think a bad fly would leave Q404 HOT undamaged. I 
>removed the power/defl board,I  find no shorts on this line so far. Will 
>keep looking.
>Phil
>
>Phil Bader wrote:
>
>  
>
>>Well, this is from a smoker. Stains inside on the boards, the dust is 
>>brown and gets all over you. Nasty.
>>Customer said at first, the picture brightness was dim, then would get 
>>very bright and shut down except the sound worked. She is not technical 
>>at all, so I take this in consideration. I checked the power/defl board. 
>>Two power devices, D461 (diode, looks like a HOT on a sink) seems OK, 
>>and a HOT Q404 tested OK. Four pico fuses near the front, 
>>F850,851,852,853 all test OK in circuit. Nothing visable. I plug it in, 
>>can hear a quick double click from a relay at rear. I then push power 
>>with the remote and a click, a low audio thump thru speakers, nothing. 
>>So, the standby supply is running to recieve the remotes' on command. 
>>Searched my archives and techrepair CD  with no results.
>>Anyone have experience with this chassis?
>>Thanks,
>>Phil Bader
>>
>> 
>>
>>    
>>
>
>  
>


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