[TechAssist] Re: 27R411T RCA TV Chasssis ITC008FHM
- From: "Larry E" <videotech@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 28 Apr 2005 10:13:16 -0400
Carl, check the solder around and on the pincushion board, had one that was
killing horiz. drive intermittently, had to hard solder the pincushion
board.
Larry Eastman
American TV & Electronics
Crystal River, Fl. 34428
----- Original Message -----
From: "CARL HURT" <churt-savannah@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, April 28, 2005 12:15 AM
Subject: [TechAssist] Re: 27R411T RCA TV Chasssis ITC008FHM
> I'm having problems with this chassis, It goes into shutdown in about a
> second.
> The shutdown leg of IC IV001 pin 36 EHT is 2.3 volts sams says it should
be
> 2.00 volts. it should take 3.6 volts to go into shutdown.
> I assume it's not in overvoltage shutdown.
>
> I removed MAV board. still shutsdown.
>
> I'm Removing tuner tomorrow.
>
> The IPO30 regulator has all the correct voltages except pin 1 which is 11
> volts. This is high because of shutdown , I think.
>
> All power supply voltages are correct.
>
> I changed the eprom.
>
> Drive signal at Hor Driver transformer looks normal.
>
> All diodes in secondary of flyback look good. No shorts
>
> Any help or suggestions welcome.
>
> Carl Hurt Electronics
> 3513 Budreau Av.
> Savannah, Ga, 31408
> 912-964-2275
> churt-savannah@xxxxxxxxxxxxxxxx
>
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