Re: Tempest WG6100 Blows F700

Check the 2 biggest Capacitors on the deflection board,meter them to see if you have a short on one or both,i have same problem before and that was the cure,maybe that will be your problem.                       Jerry.   ________________________________ From: Kirk Spradling <kspradling_at_kc.rr.com> To: vectorlist_at_vectorlist.org Sent: Wednesday, October 10, 2012 4:38 PM Subject: VECTOR: Tempest WG6100 Blows F700 I was experiencing random garbage on my Tempest so I pulled the boards out, removed the solder from the interboard connectors and resoldered them.  I put the board back into the machine and F700 blows instantly.  I have replaced ALL Q70x series including the chassis mounted transistors and it still blows F700.  I have disconnected the edge connectors from the game board and it blows F700.  I connected my Oscope to the game board X/Y and it displays the game and test screens perfectly with the same scale in X and Y. LV2000 installed years ago.  Transistors all test good and no shorts to chassis.  First version of the deflection board with no imput protection installed.  Spot killer lit. I'm pretty sure that it is related to the game board repair however I am at a loss as to what is going on since it blows without the game board. The 6100 Faq doesn't mention much about blowing the deflection fuses.  I guess I should start taking some measurements on the deflection board itself to see where I am getting the full-on signal.  Pull the X amplifier connector and check some readings.  I guess I had better look at the schematic again. The diodes test ok as well.  Guess I will start on the resistors. Thanks in advance... Kirk S. --------------------------------------------------------------------------- ** Unsubscribe, subscribe, or view the archives at http://www.vectorlist.org ** Please direct other questions, comments, or problems to chris_at_westnet.com
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Received on Wed Oct 10 19:44:09 2012