PCB Repair Logs Ghost'n Goblins
Ghost'n Goblins
 |
|
| PCB Image | Reserved |
|---|---|
| Pin Out | Reserved |
Repairer: GameDude
Forum Thread: Ghost'n Goblins PCB Repair
Had a problem a month back my Ghost n Goblins decided to play up.
All sprites were upside down but only in the sprite block, in other words the knight for example had his feet trampling his head.
I had a spare board so with this I narrowed the problem to the video PCB (of course). The left side handles backgrounds the middle handles sprites and the right side handles some other crap... cant remember now.
I started looking at the 273's and it did not take long to find one with a dead output on pin 9 at location 8J. I removed the chip and tested it in my USB tester and sure enough it failed, I then confirmed a worker and reinstalled the IC and tested.
Works perfect now!!
For this repair I mainly used a logic probe and the ttl handbook so I could see the pinouts as I could not find the schematics for this PCB if anyone has it PM me so I can add it to my collection
