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 Post subject: Re: Top Loader issues
PostPosted: Wed May 24, 2017 4:42 pm 
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Joined: Sun Jun 12, 2011 12:06 pm
Posts: 254
Location: Poland
From my experience of repairing famiclones with discrete chips I can tell you that if there is sound but no video, the video amplyfying transistor needs to be replaced. Replace it with ordinary BC327/337/547/557 (can't remember if that's NPN or PNP). The one in console has definitely different pinout)


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 Post subject: Re: Top Loader issues
PostPosted: Wed May 24, 2017 4:49 pm 
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Joined: Sun Apr 13, 2008 11:12 am
Posts: 6503
Location: Seattle
The 2SA937 in the PCB picture above is a relatively high gain non-darlington PNP transistor; any other similar transistor should be good too (e.g. BC856, BC857, BC858, BC807)


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