[TechAssist] Re: Magnavox 19E800
- From: peggs <peggs@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx, techassist@xxxxxxxxxxxxx
- Date: Tue, 14 Oct 2003 09:30:57 -0700
I robbed a F422,H. Drive Transistor from a junked out
19P601 chassis,and it's left me with the same results.
Peggs
At 09:20 AM 10/14/03, peggs wrote:
>model PR1903C125
>This set was Dead.
>Only the Power Light would blink 4 times.
>7400,the Horizontal Drive Transistor was open.
>F422,BF422 crossed to an NTE399,which I put in.
>Set works now,BUT......
>when I plug the Set in,the Horiz. Drive Transistor's B+(collector) is app.
>Zero volts,because there is .7v on the Base............the Transistor is
>Full-on.
>The Resistor that feeds the Horiz. Drive B+ is getting Hot,because it is
>dropping 100v to app. zero.When the Set is on it is dropping 100v to app. 30v.
>
>I can't imagine this is normal.
>I backed up to 7608,a SM transistor,that Drives the Horiz. Drive Transistor.
>Base 0v
>Collector 2.2v
>Emitter 0v
>
>This is where I get lost.
>Anybody Got a Manual,or any tips for this E8 chassis
>
>Peggs
>Peggs' Electronics
>1519 West 2nd Street
>Owensboro,KY 42301
>270-926-4968
>fax 270-686-7399
>peggs@xxxxxxxxxxxxx
>
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