Re: VECTOR: Re: G05 and q502

Rodger Boots <[email protected]> Tue, 10 May 2005 04:24:08 -0500
Newsgroups gmane.games.arcade.vector
Message-ID <[email protected]>
Hmmm, manual I looked at has D504 being an 1N914 diode at the junction 
of C508, C509, & D505. Either being shorted or open would kill the spot 
killer. D507 is the LED.

Maybe I have a different manual.


[email protected] wrote:

>"Poor brightness with retrace lines could mean a defective D504, or
>perhaps the ā€œZā€ signal wire is not connected properly to the base
>of Q504." 
>
>According to the manual, d504 is the Red LED. How does a
>defective LED cause retrace lines?
>
>-tom
>
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