G05 issue

From: andre <livnfree_can_at_yahoo.com>
Date: Tue Feb 21 2012 - 18:26:39 EST

I had a similar isse back in 2008 with a g05, but I don't have a clue what the solution was. Well fast forward to today and I have a new battlezone basketcase I just got. The deflection was in bad shape. I recapped everything, new side transistors, and went to work on verifying all else as the monitor just would not function in any respect. One of the connectors had the metal posts come off the pcb. So the guy soldered wire on the underside to join the bottom of the posts to positions on the pcb. The wiring is done correctly and should work. A couple of the posts were not completely through the pcb and had lost some contact so I melted the solder, and pushed the posts through the pcb so I could fasten them a lot better. After all of this, the monitor now finally works, but I have the same issue as below, only it is the bottom that is compressed. Its maybe 1/4 to 1/3 of the bottom of the screen that is compressed into a line that vibrates much like a
 loose connection would cause.. but I have verified all the connector posts for continuity. The top 3/4-2/3 of the screen is rendered absolutely fine. Is there anything other than a connector issue that could cause this?   ---------------------------------original post 2008------------------------------------ This monitor was working fine, then a bunch of resistors in the Y section fried after a 3906 died. I replaced all the burnt resistors, the 3906 and tested every other transistor and diode..all were fine. Put deflection back in and only got a thin line across the center horizontally.. threw in another deflection and it worked, so HV and frame transistors were good.. Well after pulling out my hair, went through every resistor and found the large 2ohm wirewound one in the Y was in the meg-ohms.. something must have happened to it.. so swapped out with another one, and it looked like the monitor was working when I fired up Omega Race..until the text wrote out to full screen.. I still have an issue.. When something is displayed over the whole screen, I have about the top 1/3 compressed into a horizontal line..but the rest is fine. It is more than half the screen as the center box in Omega Race is complete..another inch or two above that box is where it  compresses... I've verified pretty well everything I can on that side of the deflection.. does this point to anything I can maybe re-check?
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Received on Tue Feb 21 18:26:49 2012

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