Neo Geo:Chip Replacements: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
Some chips on Neo Geo motherboards or cartridges can go bad. Luckily, furrtek created some drop-in replacements for these chips. | Some chips on Neo Geo motherboards or cartridges can go bad. Luckily, furrtek created some drop-in replacements for these chips. | ||
== Symptoms == | == Symptoms == | ||
=== NEO-BUF === | === NEO-BUF === | ||
[https://www.tindie.com/products/furrtek/neo-buf-replacement/ NEO-BUF replacement chip]. | |||
* Random reboots during gameplay, particularly on a 161-in-1 cart. | * Random reboots during gameplay, particularly on a 161-in-1 cart. | ||
| Line 20: | Line 10: | ||
=== NEO-ZMC2 === | === NEO-ZMC2 === | ||
[https://www.tindie.com/products/furrtek/neo-zmc2-replacement/ NEO-ZMC2 replacement chip]. | |||
* Vertical stripes to appear on sprites. | * Vertical stripes to appear on sprites. | ||
| Line 25: | Line 17: | ||
=== NEO-257 === | === NEO-257 === | ||
[https://www.tindie.com/products/furrtek/neo-257-replacement/ NEO-257 replacement chip]. | |||
? | ? | ||
=== NEO-273 === | === NEO-273 === | ||
[https://www.tindie.com/products/furrtek/neo-273-replacement/ NEO-273 replacement chip]. | |||
Graphics (sprites and text) glitches. | Graphics (sprites and text) glitches. | ||
=== NEO-D0 === | === NEO-D0 === | ||
[https://www.tindie.com/products/furrtek/neo-d0-replacement/ NEO-D0 replacement chip]. | |||
? | ? | ||
=== NEO-E0 === | === NEO-E0 === | ||
[https://www.tindie.com/products/furrtek/neo-e0-replacement/ NEO-E0 replacement chip]. | |||
A faulty NEO-E0 chip prevents the system or specific slots (on multi-slot systems) from booting. | A faulty NEO-E0 chip prevents the system or specific slots (on multi-slot systems) from booting. | ||
=== NEO-G0 === | === NEO-G0 === | ||
[https://www.tindie.com/products/furrtek/neo-g0-replacement/ NEO-G0 replacement chip]. | |||
? | ? | ||
=== PCM Chip === | === PCM Chip (Game Cartridge) === | ||
[https://www.tindie.com/products/furrtek/pcm-chip-replacement/ PCM Chip replacement chip]. | |||
A faulty PCM chip may cause audio issues on a single game cartrige. | |||
== Installation == | == Installation == | ||
Revision as of 09:17, 12 July 2023
Some chips on Neo Geo motherboards or cartridges can go bad. Luckily, furrtek created some drop-in replacements for these chips.
Symptoms
NEO-BUF
- Random reboots during gameplay, particularly on a 161-in-1 cart.
- Green screen on boot, and it's not a typical calendar error.
NEO-ZMC2
- Vertical stripes to appear on sprites.
- Completely missing audio on MVS systems
NEO-257
?
NEO-273
Graphics (sprites and text) glitches.
NEO-D0
?
NEO-E0
A faulty NEO-E0 chip prevents the system or specific slots (on multi-slot systems) from booting.
NEO-G0
?
PCM Chip (Game Cartridge)
A faulty PCM chip may cause audio issues on a single game cartrige.
Installation
- Remove the faulty chip with hot air.
- Remove the remaining solder on the PCB pads with solder braid if the surface isn't perfectly flat.
- Clean up the eventual flux residue with IPA.
- Place the NEO-BUF replacement board in the right orientation (see pin 1 mark), align it precisely, and solder the 4 corners using a generous amount of flux.
- Drag-solder all the sides or solder each pin individually. The small castellated contacts will "attract" solder by capillary action. Make sure none of the contacts are bridged.