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PCEngineFans.com - The PC Engine and TurboGrafx-16 Community Forum
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NEC TG-16/TE/TurboDuo
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TG/PCE Repair/Mod Discussion
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Turbo duo help
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Topic: Turbo duo help (Read 1250 times)
uberpunisher
Newbie
Posts: 1
Turbo duo help
«
on:
May 05, 2018, 08:35:42 AM »
I have a turbo duo op amp have been changed caps have been replaced. System had no sound and I cant seem to get 3.6 volts to IC503 I checked all replaced caps I thought were at fault with no luck any help anyone can provide would be greatly appreciated.
P.S. the MOBO model is PWA-3285-A
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Keith Courage
Hero Member
Posts: 2690
Re: Turbo duo help
«
Reply #1 on:
May 06, 2018, 02:47:08 PM »
Hard to diagnose without having the board to test it but most like there there are bad traces at fault. If you are missing the 3.6V required, then start checking traces with a multi meter till you find that ones that are bad.
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PCEngineFans.com - The PC Engine and TurboGrafx-16 Community Forum
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NEC TG-16/TE/TurboDuo
»
TG/PCE Repair/Mod Discussion
»
Turbo duo help