Re: BattleZone HV diode to capoot

I don't know what it will do to the high volage if the HV diode shorts (can't be good I wouldn't think). Have you pulled out the diode to test with a meter? It should not show any reading for resistance or diode check if it is working or if it fails in an open state. If you do see resistance, then it certainly has died and I would worry about that HV transformer. If it does not however, you should be able to replace it fine to revive your game (i would think).

Does the tube heater glow? I recently worked on a g05 where the connectors were bad and it stopped the heater from getting its 6.3vac and thus no picture (i don't mean the sockets themselves, not the pins). Actually, I just have them installed at an angle right now.. I really should replace those connectors the next time I make a Bob order.

Jon

At 12:13 PM 9/9/99 -0700, you wrote:
>Dear vectorlistors,
>After months of needing to replace the HV diode(thanks to tips from this
>list) in my BZ, the monitor stopped lighting. Once, just a month to six
>weeks ago, the machine did turn on and play, but subsequent attempts to turn
>the machine have failed to light the monitor.
>
>Is this a common path of breakdown? Does a worn HV diode eventually lead to
>full break down? My screen used to bloom, but now it's dead. Could it be
>that the HV replacement will cure its ills? I'm not familiar with the
>circuit and haven't pulled the on-line schematics.
>
>I hope to get this machine running tip-top soon.
>
>thanks for any help,
>oren.m.williams@tek.com
>
>
Received on Thu Sep 9 14:29:33 1999