Re: asteroids monitor woes :-(

hallo again,

now it looks indeed as though chris is right, and the hv diode is causing a
short when it gets hot [to recap in my g05-802], and making the powerblock
buzz like an unhappy buzzy thing... im finding it a little harder to locate
a replacement for the:

by-208-600 [fast recovery diode]
by-208-1000 [fast recovery diode] (i am assuming this is the "hv diode"?)

than i thought, and i was wondering if anyone knew of AVAILABLE suitable
modern replacements, and WHERE i may be able to locate them,
or even if there is a component list somewhere with all these old monitor
parts, and their modern equivalents.

many thanks in advance,
tom

on 4/10/01 4:20 pm, thomas.angus at thomas.angus@btinternet.com wrote:

> thanks chris, although i should mention that once it fails, thats it no more
> life on powerup, it was replacing the caps in there which brought it back to
> life last time, and then sure as, 6 mins later she failed again....
>
> it could well be blooming, its just easier to tell of course when its
> drifting off the top as the score is a good marker at the top of the
> screen...
>
> maybe its not damaged anything this time though.. (it would be daft of me to
> rule out coincidence the first time, maybe the cap thing was a seperate
> issue) i shall fire up this evening and check, if not, ill get me in some
> coolent and let you know.. =]
>
> thanks again.
> tom
>
> on 4/10/01 2:57 pm, Christopher X. Candreva at chris@westnet.com wrote:
>
>> On Thu, 4 Oct 2001, thomas.angus wrote:
>>
>>> electrohome g05-802, (in an asteroids delux), picture drifts about 1 inch
>>> off top of screen, then after about 6-8 minutes starts to buzz (from hv) and
>>> the picture just becomes ghostly blurry glow... (then i switch off)..
>>
>> HV Diode is always a safe bet -- is it just drifting off the top, or
>> possibly 'blooming' -- growing in all directions ?
>>
>> The blooming occurrs when the HV diode fails and the HV becomes not so high.
>>
>> Since your problem is thermal in nature (ie - as time passes, things get
>> hot), go to Radio Shack and buy a can of freeze spray (componant cooler they
>> may call it too). Turn on the machine and wait until it fails. Spray the
>> cooler on things one at a time until it starts working again. Bingo -- you
>> found what's bad.
>>
>> I would start with the HV diode.
>>
>> -Chris
>>
>> ==========================================================
>> Chris Candreva -- chris@westnet.com -- (914) 967-7816
>> WestNet Internet Services of Westchester
>> http://www.westnet.com/
>>
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Received on Thu Oct 11 08:33:55 2001