Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: nd4w on March 06, 2009, 04:32:11 pm

Title: Sanyo 20 EZV
Post by: nd4w on March 06, 2009, 04:32:11 pm

I just got a Donkey Kong Jr with the Sanyo 20 monitor and it is blowing the 250v 300 ma fuse, I don't see any visuals that would indicate a problem. Any suggestins ?

Thanks

Title: Re: Sanyo 20 EZV
Post by: qrz on March 07, 2009, 03:44:54 pm

schematic here : http://playchoice.riemen.net/downloads/manuals/Sanyo-EZV.pdf

the reg drive ic may be questionable, faulty pass xistor.
check c609 ,    c610 ? ( diff to make it out on print . near pin 2 on reg drive IC )
if fuse blows hard ( flashbulb ! ) possible shorted hot/fly issue...



4 land call ?   pm for net text  "qso"

qrz

Title: Re: Sanyo 20 EZV
Post by: nd4w on March 07, 2009, 08:05:27 pm

Thanks , great info , c 610 looks pretty bad, I am re capping it Monday.

Mike

Title: Re: Sanyo 20 EZV
Post by: nd4w on March 09, 2009, 05:12:56 pm

re capped monitor and audio board, not blowing 300 ma fuse now , but r609 getting red hot and no picture or sound. What next ? Also where can I get a replacement for r609, ceramic ?

Thanks
Mike

Title: Re: Sanyo 20 EZV
Post by: qrz on March 09, 2009, 10:07:06 pm

r609 is the "pass resistor" (180 ohm/20w)
 high load condition ?   check ur hot for a short....surprised not poppin' the line fuse (4a)


qrz

Title: Re: Sanyo 20 EZV
Post by: nd4w on March 10, 2009, 09:35:19 pm

I've looked for a replacement for the 20 watt 180 ohm, got any ideas on where I can find one? I'll check the HOT
Thanks
Mike