Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: optima23 on July 29, 2010, 01:46:36 am

Title: WG 25K7131 issues
Post by: optima23 on July 29, 2010, 01:46:36 am

ok so I just picked up a police trainer game and the monitor is not working. So I started trouble shooting and I have found the blown fuse on the monitor board and I have also verified that the IC4 pin to the transistor is shorted. So been reading a little and looks like quite a few things could be causing this. Weres a good place to start looking for parts or what kind of monitor can i look for to just change out complete. (any newer monitors that might work and what would be needed for a change over.)

Thanks

Title: Re: WG 25K7131 issues
Post by: qrz on July 30, 2010, 09:39:05 pm

the hout xistor is likely shorted ( 2sd1398 ) and took out IC4 ( str30123)
the cause is most likely a value change of c57 ( 47uF/160v) use 105 degree when replacing...

that should get you started . 

Title: Re: WG 25K7131 issues
Post by: optima23 on July 31, 2010, 12:06:35 am

wheres a good place to get parts?

Title: Re: WG 25K7131 issues
Post by: qrz on July 31, 2010, 09:37:26 am

IF u have a local repair shop, check w/them 1st .  ;)
or
in the USA , mcm out of Ohio

http://www.mcmelectronics.com/product/2SD1398 (http://www.mcmelectronics.com/product/2SD1398)
http://www.mcmelectronics.com/product/STR30123Z (http://www.mcmelectronics.com/product/STR30123Z)
http://www.mcmelectronics.com/product/31-7865 (http://www.mcmelectronics.com/product/31-7865)