New Life Games Tech Forums

NLG Members who host their own Repair Logs of Various Games. => Channelmaniac's Arcadecomponents' Old School Repair Logs => Topic started by: channelmaniac on February 11, 2012, 04:17:11 AM



Title: Romstar Games
Post by: channelmaniac on February 11, 2012, 04:17:11 AM
Model: Sky Soldiers
Symptom: Corrupt Graphics

Background graphics and enemy ships were displayed with black dots that looked like a 'waffle' pattern. Replaced bad SRAM IC at L6. Tested.


Title: Re: Romstar Games
Post by: channelmaniac on February 20, 2012, 04:50:42 AM
Model: Twin Cobra
Symptom: Missing graphic elements

Elements would reappear if the board was flexed or tapped.

Replaced bad socket on the PROM at location A25. Resoldered 7 bad solder joints. Cleaned legs on one EPROM. Tested.