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Cart name
Notes for chip search:
  • Use "+" as delimeter for all fields (except "cart name", where space is used); if many values are entered, all of them must appear in the cartridge then; case is not sensitive
  • "Mapper" is the actual mapper used by this cartridge hardware (might not match the one at wiki.nesdev.com, as at the moment I was analyzing this cartridge, there was no mapper assigned to it, so I had to assign my own number for testing)
  • "Original mapper" is the mapper used by licensed version of this game (for multicarts, it refers to mapper of the inside games, so 0+2 means this cartridge can run NROM+UNROM games)
  • Order in which you put values doesn't matter (you can write 7400+74138+7400 or 7400+7400+74138 to search for a cartridge that contains at least two 7400 chips and one 74138
  • Some chips (like PAL16*8) appear in cartridges as 16V8 or 16L8, so be sure to check both posibilities
  • Same goes for memories - type 27F080 to search for 32 pin memories, 27512 for 28 pin with two chip enables or MASKROM_1M_DIP28 for 28 pin with one chip enable
  • Same goes for mappers - some examples: AX5904(MMC1), AX5202P(MMC3), PT8154BM (9112MMC3), AX5208C(VRC4), 23C3662(VRC2)
  • Good news is that you can use wildcards, so 74139+*MMC3* will search for any cartrige that has at least one 74139 and MMC3 chip in any version
Mapper#
Original mapper#
PCB marks
Tags
Chips
Mega Girl Another Fight Story
Typesingle
Mapper2
Original mapper2
PCB marksFC GAME 153571CP3-16 820B
Tags:#new
Uploaded:2020-05-12 11:27:40
Elements:
NameValue
U127F080
U227F080
U37474 (-)(7474)
U4-(DIL40)
U5DIL16
C1100n (-)
C2-
CART1FAMICOM_CART
D1-
JP1CLS
JP10CLS
JP11CLS
JP12CLS
JP13CLS
JP14CLS
JP15CLS
JP16CLS
JP2OPN
JP3OPN
JP4OPN
JP5OPN
JP6CLS
JP7CLS
JP8CLS
JP9CLS

Chip signature:
27F080+27F080+7474 (-)(7474)+-(DIL40)+DIL16
PCB top:

PCB bottom:
Shell top:
No photo

Shell bottom:
No photo
Screenshoots:
No photo
Extra info:
Mega Girl Another Fight Story (Mega Man 1 Hack)
I got this broken cartridge for check & dump. It reminds me in design [url=https://forums.nesdev.com/viewtopic.php?f=9&t=18375]this one[/url]. There is place to solder PRG-ROM, CHR-ROM (or CHR-RAM), two blobs, one unknown SO14 chip and a lot of jumpers.

* The pinout of top, unpopulated blob (let's call it U4) is exactly like the AX5202P, without WRAM and PRG-A18 pins). There are also extra pins wired to it: CPU-A12, CPU-A2, CPU-A1 (wonder which mapper can take use of them - JY Company?), and two input pins (mode select?) 

* The pinout of bottom, populated blob chip (let's call it U5) is:
[code]
           .---.
 CPU D0 -> |   | -- +5V
 CPU D1 -> |   | -> PRG /CE
 CPU D2 -> |   | <- M2
 CPU D4 -> |   | <- CPU A14
PRG A14 <- |   | <- CPU R/W
PRG A15 <- |   | <- CPU /ROMSEL
PRG A16 <- |   | -- GND
PRG A17 <- |   | -> CIRAM A10
           '---'
[/code]
which reveals that the blob inside can mimic either UNROM or ANROM

* The unpopulated bottom SO14 chip is meant to be 74*74 - its output would change every reset to allow 2 different games


It turns out the PCB is quite versatile - it allows to be used as:
* NROM (no extra chips need to be present)
* MMC3 (U4)
* UNROM/ANROM (U5)

Unfortunately the mapper blob is broken, but EEPROM was good. It holds the [b]Mega Girl Another Fight Story[/b] game.


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