- Joined: 14 Mar 2016
- Posts: 58
- Location: Australia
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Sony CXA1145P - Black ground cable on underside of board
 Posted: Tue Apr 05, 2016 11:42 am
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Hi Guys,
Just wondering if anyone could provide any info on this.
All of my PAL SMS2 consoles have a black wire from pin 1 of the CXA1145P to C39.
I have recently obtained another SMS. Board type 171-5922A / IC BD M4Jr. PAL. It does not have this black cable soldered.
Does anyone know the reason as to why these components share the ground? The reason I ask is that the RF output displays only a black screen. Looks like the prior owner tried to fix this by reflowing the RF module/IC/Power Switch.
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- Joined: 13 Nov 2007
- Posts: 219
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Posted: Fri Apr 15, 2016 10:11 am
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It would have been a "fix" they did during manufacturing, no real issue.
I have had Segas with dead RF modules, bypassing it and doing a composite mod (at the least) and they work fine.
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- Joined: 14 Mar 2016
- Posts: 58
- Location: Australia
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Posted: Sat Apr 16, 2016 11:58 am
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I tried the composite mod. No joy. Still get a black screen.
I've done multiple composite mods before. Not sure what is happening.
None of the caps look to have blown.
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