Re: Stubborn 19v2000

From: Jeffrey Matthews <spender1111_at_earthlink.net>
Date: Thu Jan 07 2010 - 04:36:09 EST

Dan;
There is a good chance that some other transistors were taken out as well.
You should check to make sure. Sometimes it's difficult to be 100% positive that a transistor is testing good when it's in circuit so if in doubt, just compare it to it's counterpart in the opposite deflection circuit, assuming that at least one channel is working.
Jeff

Dan wrote:

Hey guys,

I spend the evening working on a Battle Zone with a 19v2000 that doesn't
have any Y deflection (typical horizontal compressed line on the monitor
while playing blind).

Three of the fuses were blown on the deflection board, checked the power
transistors and sure enough there were two bad/blown ones.

I replaced the defective transistors and a did a cap kit on the deflection
board and reflowed all of the pins for good measure - I still have no Y
deflection! I've verified the X and Y signals from the PCB all the way up
the wiring harness to the deflection board, what am I missing?

Many thanks,
-Dan

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--------------------------------------------------------------------------- ** Unsubscribe, subscribe, or view the archives at http://www.vectorlist.org ** Please direct other questions, comments, or problems to chris@westnet.com Received on Thu Jan 7 04:36:21 2010