[TechAssist] Re: Sharp 25R-M100
- From: tvdoctors@xxxxxxxxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: 01 Feb 2002 17:53:47 -0800
Update; I found out by disconnecting the yoke return cap (C612) the unit
would power up with Vert. line. B+ sets at around 112 volts. Yoke return Cap
(C612) is good, (measured and replaced) and the yoke is not shorted, ( Tried on
another Sharp with same CRT and yoke). Unit shuts down within 3 seconds if
vert. yoke winding is unplugged which I think this is normal. Overall, I can
get the unit to power on with a line up and down, but as soon as I connect the
yoke return cap it won't start. With this added info, does this give anyone
a clue to what else I should look for? As listed below, Fly and
regulator IC replaced already. Neil
> ** Original Subject: RE: [TechAssist] Sharp 25R-M100
> ** Original Sender: tvdoctors@xxxxxxxxxxxxx
> ** Original Date: Fri, 1 Feb 2002 14:26:42 -0500 (EST)
> ** Original Message follows...
>
> No print on this unit. Replaced flyback transformer and regulator IC701, but
> still won't run. Tries to come up at first plug in but goes to immediate
> shutdown. Secondary power supply voltages are 154volts, 15 volts, and 11
> volts. Can anyone shed some light on this one, Thanks, Neil
>
> TV Doctors 108 W. Main St. Monroe,Wa. 98272 360-794-6469
>
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TV Doctors 108 W. Main St. Monroe,Wa. 98272 360-794-6469
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