Nov 302017
 

Received this Japanese version of Liquid Kids for a repair  running on a different F2 hardware.

 

The game was playing fine but hadn’t any sounds.

Amplifier and preamps were good so I started to probe the sound circuit logic.

The Z80 sound cpu ram had some weak signals

After replacing it , the sound was restored.

Liquid Kids repair log

 PCB Repair Logs, Repair Logs  Comments Off on Liquid Kids repair log
Oct 312016
 

This game had two problem:

  • Glitchy and noisy sounds
  • Blocky background images

liquidk2

 

Given the high unreliablity of Taito maskroms I immediately tested the ones marked in red which with no surprice some pins not connected internally

 

liquidk

 

C49-04 restored the glitchy sound and C49-02 fixed the blocky gfx.

Replacements to be used are 27c400 (4mbit eproms with maskroms pinout)

Game 100% fixed

liquidk3