27 Dec 2019

Sega PAL dumps

While working on a Sega Y board I found out one of the PAL chip was actually faulty (IC134 on the bottom board, PAL16R4 device, ref. 315-5325). I managed to recreate the faulty part externally but I wanted to make it neater. So I started my quest to find a dump for this PAL and the only result I got was retroclinic.

I promptly contacted Mark Haysman but he wouldn't share the jed file however he would sell a replacement chip to me (which is the same, from the chip I can reverse equations). This is when I realised so few of those dumps were available and the few I could find were either non working or untested. So here starts my quest to dump or reverse as many of them as I could.

You'll find below link to the jed files, feel free to share or host but please give credit.
Everything you'll find here has been tested on real hardware.

[EDIT]

Reorganised for clarity.

OutRun hardware:

IC26 top board, ref. 315-5223A, CK2605 device read and converted to GA22V10 (wouldn't fit in a GAL16V8 since pin 11 can't be configured as an output, fits in a GAL18V10 see below). Simply tie pins 10 & 12 (ground) and leave pins 11/12/13/14 sticking out of the socket (pin 1 aligned to pin 1).
drive.google.com/open?id=1nCSizK-5f_nz8BEZ4_kGA-Cg5VKAIU6M

IC26 top board, ref. 315-5223A (CK2605) reversed in a GAL18V10:
drive.google.com/open?id=1YoJeV1xzVA6wrd_uMXbNwPAHXc9juOrF

IC62 top board, ref. 315-5225 (PAL16R4), brute forced and reversed in a GAL16V8:
drive.google.com/open?id=1LP-w0lmDxdJULm_w35xJFE6yGS4wkjLU

IC79 top board, ref. 315-5226 (PAL16R4), brute forced and reversed in a GAL16V8:
drive.google.com/open?id=1xsay3SICGVvUKUhq5gC3IOv6tPD9XZJ0

IC108 top board, ref. 315-5224, CK2605 device read and converted to GAL16V8:
drive.google.com/open?id=1pCVWt3_dthJ97EchGKfZNoGCPg5ANEq2

Sega X board hardware:

IC18, ref. 315-5280 (CK2605) reversed in a GAL16V8:
drive.google.com/open?id=1ewW2pxBXgYx4KR2Yj_H_EBHYZdBQLJjr

IC84, ref. 315-5278, PAL16L8 device recreated from the schematics for a GAL16V8 since it was completely missing from my board:
drive.google.com/open?id=1UKP7R47VsQ_k7mq1LAkVZaj2Dxn25Yh7

IC109, ref. 315-5290, PAL16L8 device brute-forced and converted to GAL16V8:
drive.google.com/open?id=1GQDebSoi8Uo0LaMT_RjqxBiYd2h2uULs

IC117, ref. 315-5291, PAL16L8 device brute-forced and converted to GAL16V8:
drive.google.com/open?id=1sv9VZikZ0aPsuB53QdRFqIZK70ho_ROy

IC127, ref. 315-5304 (PAL16R6, all games except After Burner), reversed in a GAL16V8:
drive.google.com/open?id=1nMy92D-XNV_1wRy8-zyGrY-4pD0GjNFb

Sega Y board hardware:

IC20 top board, ref. 315-5314, PAL16L8 device brute-forced and converted to GAL16V8:
drive.google.com/open?id=1JHeX55G7ti4hKwECXKafhmecEs179j-G

IC49 top board, ref. 315-5316 (PAL16L8) reversed in a GAL16V8:
drive.google.com/open?id=1Lj4ueRWxYQ3KaG4OsAh4zygK1u1jM2W6

IC76 top board, ref. 315-5315, PAL16L8 device brute-forced and converted to GAL16V8:
drive.google.com/open?id=1PyBHSJW8l4OGIO6MNX0cfRknaSXLqM1P

IC96 top board, ref. 315-5318, PAL16L8 device brute-forced and converted to GAL16V8:
drive.google.com/open?id=1nXMLENxu-InbzbrjScJZMiiLSEIizdNG

IC103 top board, ref. 315-5280, CK2605 device read and converted in a GAL16V8:
drive.google.com/open?id=1ewW2pxBXgYx4KR2Yj_H_EBHYZdBQLJjr

IC104 top board, ref. 315-5328 (CK2678), won't fit in a GAL16V8 (pins 9 & 11 are outputs, fits in a GAL18V10 see below). Bridge pins 10 & 12 of the GAL22V10 and leave pins 11/11/13/14 sticking out of the socket. Also bridge pins 9 & 14.
drive.google.com/open?id=15mqzmp5GDLD8dWhLU4slblI0ju3gwiv_

IC104 top board, ref. 315-5328 (CK2678) reversed in a GAL18V10:
drive.google.com/open?id=11x4KbuiNIkD-ZW2GhtWaax8EcSAX1L6n

IC43 bottom board, ref. 315-5319, PAL16L8 device brute-forced and converted to GA22V10 (wouldn't fit in a GAL16V8 because of missing feedback, fits in a GAL18V10 see below). imply tie pins 10 & 12 (ground) and leave pins 11/12/13/14 sticking out of the socket (pin 1 aligned to pin 1).
drive.google.com/open?id=1d9PB_WWq3rWCAi5ZHxMK7cn0xi-tlR8Q

IC43 bottom board, ref. 315-5319 (PAL16L8) reversed in a GAL18V10:
drive.google.com/open?id=1Uqf1pGchnJ46cRmiqdecjYbsppIBMS8J

IC134 bottom board, ref. 315-5325 (PAL16R4) reversed in a GAL16V8 (many thanks to member trol for sending me a replacement chip):
https://drive.google.com/open?id=17oIewDTSTRHDYfOr3G5i7y0OsZmLiFof

1 comment:

  1. Excellent work!Now people selling these programmed GALs can go to hell :)

    ReplyDelete