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NEC TG-16/TE/TurboDuo => TG/PCE Repair/Mod Discussion => Topic started by: jesuz on June 20, 2016, 12:21:29 AM

Title: Turbo express / pc engine GT screen problem
Post by: jesuz on June 20, 2016, 12:21:29 AM

Hello. I am new here and I am sorry if first post look like a help request.

I just bought a pce gt with no audio and bad video and I was hoping for a simple capacitor change.
did all very neat, sound is perfect and picture good but... after few minutes (random) the screen shut down. I made a video in this link.

https://youtu.be/I1gnlAE1Xc4

A guy who repair/mod pc engine stuff told me it's a 24V problem but he told me just that, no more.

Anyone here experienced a similar problem and fixed it?

Thanks in advance.

Josue

Title: Re: Turbo express / pc engine GT screen problem
Post by: Necromancer on June 20, 2016, 06:04:48 AM

I knew it!  Finally an answer to the age old question: He'd OBEY.  :mrgreen:


Anyways, welcome aboard!  I'm sure the repair guys will have some ideas.

Title: Re: Turbo express / pc engine GT screen problem
Post by: jesuz on June 21, 2016, 10:44:43 PM

 :mrgreen: thanks.
Yes i hope someone can help me to fix all or at least if there is someone who i can send all for repair it.

Title: Re: Turbo express / pc engine GT screen problem
Post by: Keith Courage on June 26, 2016, 06:54:26 AM

there's probably a bad trace going to one of the capacitors or some old capacitor goop somewhere on the board that is shorting things out.

double check the traces for the two 4.7 UF capacitors. also, look underneath the board from where those two capacitors are and see if there's any old cap goop that needs to be cleaned off.

Title: Re: Turbo express / pc engine GT screen problem
Post by: jesuz on June 26, 2016, 04:22:40 PM

thanks. i will check all carefully  :)

Title: Re: Turbo express / pc engine GT screen problem
Post by: thesteve on June 26, 2016, 10:32:19 PM

looks like the -24V is dropping out
dont know why yet

Title: Re: Turbo express / pc engine GT screen problem
Post by: jesuz on June 30, 2016, 06:54:52 PM

Any change i can send to someone for repair? paying the service of course.

Title: Re: Turbo express / pc engine GT screen problem
Post by: thesteve on July 01, 2016, 01:49:39 PM

Yep

Sent from my SPH-D700 using Tapatalk

Title: Re: Turbo express / pc engine GT screen problem
Post by: jesuz on July 05, 2016, 04:57:33 PM

thanks. :)

so i really like to send my stuff to someone for check/repair. if anyone is available for this job please contact me. thanks :)