It is currently Wed Sep 18, 2019 6:46 am

All times are UTC - 7 hours





Post new topic Reply to topic  [ 3 posts ] 
Author Message
PostPosted: Fri May 31, 2019 2:34 pm 
Offline
User avatar

Joined: Tue Mar 22, 2016 8:27 pm
Posts: 346
Location: Minnesota, USA
I recently got a PAL front loader and had to do a CIC mod on it since I don't have any actual PAL carts. I removed the CIC chip, put a socket into the board with pin 4 of the socket bent up and tape covering the board's pin 4 thru-hole. I then removed a nearby bypass cap and installed a 3-pin header with its center pin bent up (which fits perfectly). I then reattached the bypass cap on the other side of the board. And finally, connected together the 2 bent up pins with a wire. This makes the CIC selectable with the jumper and everything looks nice. :)

Attachment:
IMG_1720.JPG
IMG_1720.JPG [ 255.42 KiB | Viewed 3814 times ]


Attachment:
IMG_1721.JPG
IMG_1721.JPG [ 252.8 KiB | Viewed 3814 times ]


Top
 Profile  
 
PostPosted: Fri May 31, 2019 3:01 pm 
Offline
Site Admin
User avatar

Joined: Mon Sep 20, 2004 6:04 am
Posts: 3724
Location: Indianapolis
That does look nice. My NES has lockout pin 4 wired to a panel-mount toggle switch drilled through the back of the case. What was weird is after about 4 years of use, the lockout chip died. Most likely something like ESD, the case was always off, and I've caught my cat sleeping on the mainboard before, so who knows. But I thought it was pretty funny that I recently repaired my NES lockout, of all things (can't test GTROM boards without it).


Top
 Profile  
 
PostPosted: Fri May 31, 2019 6:46 pm 
Offline
User avatar

Joined: Tue Mar 22, 2016 8:27 pm
Posts: 346
Location: Minnesota, USA
I didn't realize until I got home tonight and tried it, NTSC controllers don't work with this PAL-A NES from the UK! I figured out how to add the 3.6k resistors on the clock and strobe lines inside the NES. I thought there was something actually wrong when the controller didn't work. I got this NES in case I someday do any development and want to support/test PAL.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 7 hours


Who is online

Users browsing this forum: No registered users and 6 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group