Author Topic: Repairing an NEC Turbo Express  (Read 51 times)

GeekBoss

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Repairing an NEC Turbo Express
« on: February 05, 2018, 03:55:19 PM »
Well I never just repair, I restore!

GeekBoss

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Re: Repairing an NEC Turbo Express
« Reply #1 on: February 05, 2018, 04:54:30 PM »
Not sure what the jumper is for the back of the earphone jack, gonna find out though!

Pads are pulled off in some places, so we're going to rebuild them.

Got rid of the other caps the way they were, they would short out.

GeekBoss

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Re: Repairing an NEC Turbo Express
« Reply #2 on: February 05, 2018, 08:43:12 PM »
Curing silver epoxy and fresh copper pads ... :D  See this thing tomorrow.

GeekBoss

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Re: Repairing an NEC Turbo Express
« Reply #3 on: February 07, 2018, 10:06:44 AM »
Well, got the pads cured and then two needed redone... We're about to check tham and then continue on!!

GeekBoss

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Re: Repairing an NEC Turbo Express
« Reply #4 on: February 07, 2018, 06:47:34 PM »
Ok, got all the pads repaired and the caps soldered in.  Fuse is changed and ready to cross our fingers and hook up for a test!!

GeekBoss

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Re: Repairing an NEC Turbo Express
« Reply #5 on: February 07, 2018, 09:24:48 PM »
Ok so it wouldn't show video, but it had sound after the recap.  Taking voltage measurements was kind of a shot in the dark since I had no schematic!  But I found that D502 had one of it's two diods bad! And now it works!