Re: Re: Help with G07-FBO

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That would be bad... I measured the voltage by disconnecting the lead to
the base of the horizontal output transformer, though. That allowed most
of the circuit to operate (but not the HV). That's when I measured the
160v (so the regulator wasn't completely unloaded). The fuse was intact
at that point.

Rich

John Robertson wrote:

> It is unlikely to be the regulator. Perhaps the flyback has shorted
> out and this is blowing the B+ fuse. When the B+ fuse is open then the
> regulator shuts down and with no load the pass resistor will shoot up
> to ~160VDC on each side...
>
> John :-#)#
>
> At 07:26 PM 31/12/2002 -0500, Richard Gopstein wrote:
>
>> I don't think this went out the first time...
>>
>> Richard Gopstein wrote:
>>
>>> I am trying to fix an Electrohome G07-FBO for a friend. It keeps
>>> blowing fuses. I replaced the horiz. output transistor, but that
>>> didn't fix it. It looks like the regulator circuit may be the
>>> problem, since it appears to be putting out nearly 160 volts (rather
>>> than the 120 the schematic says it should). The monitor has a STR383
>>> TO-3 device which appears to be a voltage regulator. Any ideas what
>>> this part really is and where I might get one? Thanks a bunch.
>>>
>>> Rich
>>>
>>
>>
>>
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Received on Sat Jan 04 15:14:06 2003