Re: WG color XY problem (additional info)

Some extra info. I found that R711, 703, 702 were all toast. So I replaced
them. Now when I power the monitor I blow Fuse 700 right away.

David
-----Original Message-----
From: David Shoemaker <davids@oz.net>
To: vectorlist@mcfeeley.cc.utexas.edu <vectorlist@mcfeeley.cc.utexas.edu>
Date: Saturday, October 10, 1998 10:05 PM
Subject: WG color XY problem

>I have a WG from a tempest giving me a problem. When I picked it up it
had
>blown the two X deflection amps, the two power transistors (Q102, 103) and
>Fuse 700.
>
>I replaced all the transistors (including the two Y for the fun of it) and
>the fuse. The monitor powers up now and I can hear some deflection. But
>Spot killer is on (though once and a while I get a picture which is all
>scrunched up on one end of the monitor).
>
>On the J700 the schematic says I should have -.03Vdc at pins 4 & 5 (goes to
>the deflection coil). But I am getting -4.1Vdc.
>
>I also had some low voltage oddeties (-27.7 was around -24) so I put in a
>LV2000. This gets the right voltages to the inputs of Q705 & 706. But I
>can't figure out where I am getting the extra nearly 4 V out of those two
>deflection transistors.
>
>Ideas?
>
>Thanks,
>David
>
Received on Sun Oct 11 01:22:23 1998