[TechAssist] jumper# correction: fix Re: Sanyo 32" HDTV dead. DS32830H (ch# 32830H-00)]
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 08 Feb 2005 13:39:05 -0500
Correction:
Jumper J410 was used to monitor the +130VDC B+, not J418 next to it.
Sorry.
Phil Bader
Phil Bader wrote:
>Final fix: I changed:
>Q402,Q601,F601,D611,D612, IC601.
>I clipped my volt meter across a jumper J418 next to the fly,
>negative to HOT heat sink to monitor the +130V source.
>I plugged the TV into my Sencore PR570 isolated variac set to zero line volts,
>and slowely increased it to full 120VAC. I had +80VDC at the jumper in standby.
>I powered the TV on, and a perfect picture and sound appeared, with the
>+130VDC source
>at +129.9VDC running.
>All seems stable and well.
>Customer said he didn't want to put much into it, as it was only $400.00 at
>Walmart.
>Yeah. I have wide band cable internet. Sanyo 32" HDTV at walmart is on sale @
>$697.00, was $747.00.
>The standard res Sanyo 32" flat screens there are $397.00.
>I guess he was "confused"...
>Phil Bader
>
>
>>Saturday, January 29, 2005, 10:54:36 AM, you wrote:
>>
>>Phil> Other ID: "Family/Group: VB1A" Made Nov. 2003.
>>Phil> Customer said they watched it night before, next morning, dead. No
>>storms.
>>Phil> This is made with two large boards, one I would call signal, the other
>>Phil> power/deflection. There are other daughter boards.
>>Phil> Inspected and found, all on power board...
>>Phil> Blown AC fuse F601 (4A GMA)
>>Phil> Main reg FET shorted: Q601 (K3505)
>>Phil> HOT shorted: Q402 ("Toshiba C5857").
>>Phil> The three small reg. transistors all test OK out of circuit:
>>Q611,612,613.
>>Phil> The 4 lead opto-iso "seems" OK with diode test. (# on part: PC123)
>>Phil> All the small low-ohm resistors and small diodes in the PS area seems
>>Phil> OK,too.
>>Phil> My first Sanyo HDTV.
>>Phil> Any one have experience with this one? Suggestions needed.
>>Phil> Wonder why the PS and HOT was damaged. Which caused which...
>>Phil> Wonder is there's a service manual in pdf available.
>>Phil> Thanks,
>>Phil> Phil Bader
>>
>>Phil> --
>>
>>Phil> Philip Bader
>>Phil> Jan Phyl TV Inc. (estab. 1976)
>>Phil> 3420 Recker Hwy. Winter Haven, Fl. 33880
>>Phil> Fax (863) 299-8821
>>Phil> email: tjanphyl@xxxxxxxxxxxxxxx
>>
>>
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Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx
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