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32x no video but has audio - any help?


Tengugurl

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hi all!

 

tl;dr recapped a broken 32x, got audio working but no video. Frustrating 

 

1) replaced  the ribbon cables

2) cleaned the pcb

3) recapped it

4) reflowed the solder joints on the av, in, out, and psu ports

5) got it to recognize in av mode and rgb mode (Aka different cables)

6) brand new av cable extension from genesis to 32x (does not have the extra pin so got that covered)

7) pushed on the video chip, no distortion or changes in the video quality

8) cleaned pcb traces on cartridge port both genesis and 32x

9) gets power from stock psu that works fine in a genesis 2 multimeter reads normal

 

 

problem: video barely comes in, only faintly shows for Sega genesis games, 32x games don’t make sound or fuzzy video


any suggestions? I did have it show a crystal clear image once but on reboot it stopped showing video again, fml..

 

ps the slight differences in colors is the picture haha right?  Not much to see

E4141C46-094E-44FD-A07E-15FE613C57C5.png

07BBBEB1-57C9-43FB-A0CB-454352245EE2.png

07C1D183-850A-4F4F-9E53-58DEBDBF9D0D.png

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Have you reflowed the solder on all of the chips on the 32X’s motherboard? Give it a try if you haven’t. Something on the board might have a short (possibly corroded solder joints somewhere) somewhere, causing the issue. The other possibility could be damaged chips or a hairline crack in one of the traces on the motherboard.

Edited by ColecoGamer
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  • 2 weeks later...
On 2/19/2022 at 4:38 PM, Tengugurl said:

Mhm! Probably should make a check list when I test things out haha #1 on the list, check the psu. #2 is it OEM?

Yes... it is called A.S.A.P.

 

It was the first lesson my father told me when I was younger in regards to working on not just electronics, but anything really. It stands for...

 

Always

Start

At

Power

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