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[Console Repair/Mod Center / Re: PCE duo blank screen only on cd system 3]

Ok thanks keith i will more investigate 

[Console Repair/Mod Center / Re: PCE duo blank screen only on cd system 3]

ok first i notice changement. I let demo mode hu card run about 5 minute and after power on without hu card menu system CD finally work !

Good but when i let this menu alone it turn back to white some minutes after... and i can notice some glitch artifact sometimes.

here is my results :





i take mesure in IN voltage and OUT voltage. Am i good ? as you can see i didn't get 5V at all on both

[Console Repair/Mod Center / Re: PC engine Duo-RX plays hu-cards but get either pink, green or cyan screen for CD]

Exactly the same on my duo white screen without hu card. I opened a new topic hours ago

[Console Repair/Mod Center / PCE duo blank screen only on cd system 3]

Hello i'm new on this site thanks admin for accept me. I'm also new on pc engine world.

I bought a duo (as is) in japan and trying to repair.

First i recaped all with console5 smd kit. I cleaned all with isopropyl before recap.

The hu card run well but when i power on the unit without hu card i got a white screen.

Normally i must see system 3 ststem waiting cd and i noticed no life in cd tray no moving lens or motor.

I check the forum and i read via chip can be the fault ? I don't know any help are welcome !