[TechAssist] Re: (Archive Copy) Re: Zenith A50M91W9
- From: Ralph Dorsey <Merlin-Wizard@xxxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sun, 17 Mar 2002 17:03:10 -0600
There's a 100uf @25volt cap right next to the chip that you replaced.
Give that a try. I have had them bad
info wrote:
>Well, posibly touch a connector to ground.... and now the B+ is low, about
>67 Volts....but power on and sound is high, the video is reduced like a
>regulator bad. They have 2 mosfet to reg 115 v and other voltages. I check a
>lot of protection and fuses and all is ok, really have my head confuss.
>Ruben
>----- Original Message -----
>From: "Shaun" <ssroark@xxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Saturday, March 16, 2002 6:53 PM
>Subject: (Archive Copy) [TechAssist] Re: Zenith A50M91W9
>
>
>>Make sure none of the screws feel into the chasis if all you did was clean
>>it.
>>
>>Shaun
>>Advanced Electronics
>>Fort Morgan, CO 80701
>>(970)867-3124
>>ssroark@xxxxxxxx
>>----- Original Message -----
>>From: "info" <info@xxxxxxxxxxxxx>
>>To: <techassist@xxxxxxxxxxxxx>
>>Sent: Saturday, March 16, 2002 3:20 PM
>>Subject: [TechAssist] Zenith A50M91W9
>>
>>
>>>This unit was open to clean the mirror, after that the power supply just
>>>give 60 Volts (maybe some short circuit?)......I check the regulator and
>>>
>>ok,
>>
>>>change a MC34065P but dont start up with new circuit. Any help is very
>>>appreciated.
>>>Ruben V.
>>>
>>>
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>>
>
>
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