Re: electrohome G05-805 parts question ..

That's one thing to try. I wouldn't think the transistor would cause
vectors not to line up (but board adjustments would). And do any of
your lines have ripples or zigzags in them? Either of these could point
to either regular wirewound resistors being used instead of the
non-inductive wirewound resistors in the yoke feedbacks (yoke to ground)
OR a bad filter capacitor allowing high-voltage power supply noise to
get back into the deflection circuits.

John Robertson wrote:

> Try moving the BDW51C to the other 2N3716 position and vice versa.
> Does the problem shift? If not then it is on the game board, or the
> deflection amp on the monitor. Try the board in your friends machine
> to eliminate it...
>
> John :-#)#
>
>
> At 02:05 PM 4/29/2001 -0500, you wrote:
>
>> A BDW51C crosses to an ECG/NTE284 or SK3836.
>> A 2N3716 crosses to an ECG/NTE284 or SK9134.
>>
>> Well, THAT'S kind of interesting! What is the difference between an
>> SK3836 and
>> SK9134? They are both NPN power transistors in a TO-3 case, but
>> beyond that I
>> don't know.
>>
>> There is a common saying "If it ain't broke, don't fix it" that
>> might apply
>> here. Does it work? Then leave it alone!
>>
>>
>> Andy Welburn wrote:
>>
>> > hi all.
>> >
>> > I'm just looking to cap an electrohome g05-805 that i have in a
>> battlezone
>> > caberet, i've found the deflection transistors on the underside of
>> the
>> > chassis, however, after expecting a 16/92 arangement i find there
>> is 2x
>> > 2n3792's, one 2n3716, and a BDW51c .
>> >
>> > would i be correct in assuming that this bdw51c is just an
>> equivalent part
>> > for a 2n3716?
>> >
>> > the monitor works ok, but the vectors aren't spot on, they're not
>> dead
>> > straight all the time.. i've replaced most caps, but i think the
>> deflection
>> > transistors getting replaced should do it some good..
>> >
>> > anyone care to comment?? i'm a bit unsure..
>> >
>> > thanks in advance
>> >
>> > Andy Welburn
>> >
>> >
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>
> John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
> Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
> http://www.flippers.com
> "Old pinballers never die, they just flip out."
>

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Received on Mon Apr 30 04:17:11 2001