Console Repair/Mod Center
Hi,
I received a PC Engine Duo for a repair and mod.
According to the owner the console doesn't play cards or CD and a capkit might be needed.
When I tested it the first time, cards played fine but in CD mode it was stuck on a static, plain white screen (like when a normal PCE is switched on with no card).
With the help of a logic probe I found a floating address line on the BIOS ROM. I patched it with a piece of kynar wire and the CD mode was restored:
It as time to test it with a CD: nothing, the CD doesn't even spin, sign that the lens doesn't 'see' anything. So I installed the capkit (quite a lot of caps) and... No change.
The owner ordered a new lens and once fitted the console now recognises disc, sometimes I can see an error screen with a game and I can enter the audio mode with a normal audio CD but nothing more (no tracks data, length, etc.):
The owner pointed me to 2 different threads explaining how to adjust the pots. I carefully took measurement of each one before starting the job and followed the instructions carefully.
But still, CDs aren't read properly.
Does anyone have an idea at what to look?
I'm not really specialised in PCE, I've just bought one few weeks ago, 18 years after having sold my duo!
Thanks for your help.
I received a PC Engine Duo for a repair and mod.
According to the owner the console doesn't play cards or CD and a capkit might be needed.
When I tested it the first time, cards played fine but in CD mode it was stuck on a static, plain white screen (like when a normal PCE is switched on with no card).
With the help of a logic probe I found a floating address line on the BIOS ROM. I patched it with a piece of kynar wire and the CD mode was restored:
It as time to test it with a CD: nothing, the CD doesn't even spin, sign that the lens doesn't 'see' anything. So I installed the capkit (quite a lot of caps) and... No change.
The owner ordered a new lens and once fitted the console now recognises disc, sometimes I can see an error screen with a game and I can enter the audio mode with a normal audio CD but nothing more (no tracks data, length, etc.):
The owner pointed me to 2 different threads explaining how to adjust the pots. I carefully took measurement of each one before starting the job and followed the instructions carefully.
But still, CDs aren't read properly.
Does anyone have an idea at what to look?
I'm not really specialised in PCE, I've just bought one few weeks ago, 18 years after having sold my duo!
Thanks for your help.
NEC Console Resource