[TechAssist] Re: Hitachi AP63 fixed..Damn Bug!
- From: "D Thunhurst" <dthunhurst@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 16 Jan 2003 16:31:10 -0700
I guess you could really say you had to get the bugs worked out of it. LOL
Daryl
Daryl's TV
3310 Dyer St.
El Paso, TX 79930
915-565-9184
915-564-1024 Fax
http://dynacomp.freeyellow.com
-----Original Message-----
From: Hermantvr@xxxxxxxxxxxxx <Hermantvr@xxxxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
Date: Thursday, January 16, 2003 8:26 AM
Subject: [TechAssist] Hitachi AP63 fixed..Damn Bug!
>
>Had a Hitachi 50UX26B, AP63 Chassis. Would not start. Could not get the
>primary side of the Power supply to start. I had replaced all the
components
>on the primary side of the Power supply and it still would not start. Found
>nothing wrong on the secondary. One of the fine members of this group
>forwarded the info to the proper people at Hitachi and they emailed me
>several tests to try. None of them would work. Finally I tried to ring the
>switching transformer. It would not ring in circuit so I removed T902 .
When
>I removed the transformer, a "BIG OLE BUG " had crawled in between the legs
>of the transformer and the body of the transformer. I cleaned it out and
the
>transformer rang good. I put the transformer back in and applied 17v to the
>cathode of d905 and slowly applied 0 to 60 volts to pin one of T902 while I
>monitored pin 1 of I901.Wallah!!! a waveform appeared. I replaced F906 and
>F903 which loads the primary and secondary and Wallah again....it
>works....Guess that bug had enough juice in it's body do cause problems.
>
>Tommy Herman
>Herman TV
>250 School Ave SW
>Taylorsville, N.C. 28681
>828-632-58322 Voice
>828-632-3880 Fax
>hermantvr@xxxxxxxxxxxxx
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