Author Topic: [Solved] PC-Engine Duo No video mid cap replacment?  (Read 299 times)

that1crzywhtguy

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[Solved] PC-Engine Duo No video mid cap replacment?
« on: January 05, 2017, 12:28:46 AM »
I'm sort of stumped here. I was replacing the capacitors, and when I hit a checkpoint, I get no video. Audio is coming through, so I know it's booting the game, but I get squat on the video. I tried to undo the last couple caps I removed just to see, and still nothing. I've got continuity (checked with multi meter) on the AV cable, I've got continuity from the cable to the port too. Past that, I'm unsure what and how I should check things. I bet it's something small and easily fixable, yeah? Maybe more like I pray it is. Thanks in advance for any help!

« Last Edit: January 09, 2017, 10:58:16 AM by that1crzywhtguy »

Necromancer

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Re: No video mid cap replacment?
« Reply #1 on: January 05, 2017, 01:19:55 AM »
I'm sure one of the smart repair guys will pop in soon, but the common answer for such issues is that there's an open via.  To help them help you, you should tell 'em what system you're trying to fix.
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that1crzywhtguy

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Re: No video mid cap replacment?
« Reply #2 on: January 05, 2017, 05:08:30 AM »
I'm sure one of the smart repair guys will pop in soon, but the common answer for such issues is that there's an open via.  To help them help you, you should tell 'em what system you're trying to fix.

Oh my goodness! I can't believe I forgot that. I was really tired by this point clearly! It's a region modded PC-Engine Duo. -facepalm-

that1crzywhtguy

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Re: PC-Engine Duo No video mid cap replacment?
« Reply #3 on: January 05, 2017, 05:28:35 AM »
To help them help you, you should tell 'em what system you're trying to fix.

Also edited my post. :)
« Last Edit: January 06, 2017, 01:27:40 AM by that1crzywhtguy »

that1crzywhtguy

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Re: PC-Engine Duo No video mid cap replacment?
« Reply #4 on: January 08, 2017, 09:41:31 PM »
Bump

Keith Courage

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Re: PC-Engine Duo No video mid cap replacment?
« Reply #5 on: January 09, 2017, 06:43:15 AM »
usually during a recap where the video is damaged, the problem is the traces for the 470uf capacitor which is right by the power switch. The contacts can be pulled out of the board on accident when removing the old cap. One must then run new wires to the caps leads to remedy the issue.
« Last Edit: January 09, 2017, 10:58:35 AM by Keith Courage »

that1crzywhtguy

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Re: PC-Engine Duo No video mid cap replacment?
« Reply #6 on: January 09, 2017, 10:57:53 AM »
usually during a recap where the video is damaged, the problem is the traces for the 470uf capacitor which is right by the power switch.

You're a genius!!! That was it!!! Hurray!