[TechAssist] Re: Sanyo DS27630 shorting horz output
- From: Ralph Dorsey Atlas TV <Merlin-Wizard@xxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sun, 12 May 2002 22:21:49 -0500
check the yoke. it'll cause this problem.
Ralph Dorsey
Atlas TV Inc.
3945 s 76th St.
Milwaukee.Wi 53220
414-545-2303
al m wrote:
> check it for ripple or noise
> al marquardt
> ampm@xxxxxxx
>
>
> ----- Original Message -----
> From: "Shaun" <ssroark@xxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, May 11, 2002 10:47 PM
> Subject: [TechAssist] Re: Sanyo DS27630 shorting horz output
>
>
>
>>The b+ is 128vdc which I assume is close because it has a STR30130
>>regulator.
>>
>>Shaun
>>Advanced Electronics
>>Fort Morgan, CO 80701
>>(970)867-3124
>>ssroark@xxxxxxxx
>>----- Original Message -----
>>From: "Frank Luu" <fkluu@xxxxxxxxx>
>>To: <techassist@xxxxxxxxxxxxx>
>>Sent: Saturday, May 11, 2002 10:40 AM
>>Subject: [TechAssist] Re: Sanyo DS27630 shorting horz output
>>
>>
>>
>>>
>>>What is the B+ voltage? If it too high it will kill
>>>HOT again.
>>>Frank
>>>
>>>--- Shaun <ssroark@xxxxxxxx> wrote:
>>>
>>>>This Sanyo DS27630 came in with a shorted horz.
>>>>output and R608 and R610
>>>>burned and open. When all parts replaced unit played
>>>>for about 1 hour then
>>>>shorted the horz. output again and blew the fuse
>>>>this time. I replaced it
>>>>again and checked again for and cold solder joints
>>>>and measured the base of
>>>>the horz. output (D1555) and it was
>>>>(-0.03vdc) and after about 10
>>>>minutes it was starting to get hot to the touch. I
>>>>do not have a schematic
>>>>so I am shooting in the dark. I also replaced the 1
>>>>uf 160 cap off of the
>>>>horz. driver transformer. Any help would really br
>>>>great.
>>>>
>>>>Shaun
>>>>Advanced Electronics
>>>>Fort Morgan, CO 80701
>>>>(970)867-3124
>>>>ssroark@xxxxxxxx
>>>>
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