PCB Repair Logs World Rally
World Rally
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| PCB Image | Reserved |
|---|---|
| Pin Out | Reserved |
Repairer: VectorGlow
Forum Thread: World Rally PCB Repair
Symptom: Some colours wrong, for example car sprite colours and the hand at the start of a race. Also the test card colours in test mode
Cure: Bad outputs on pins 12 and 13 of the 74LS298 at location G3
Symptom: Some text a bit mangled
Cure: Broken pin 7 on 27C4001 at location I11
Symptom: Couldn’t adjust sound volume correctly
Cure: A 5K volume pot had been used instead of the correct 4.7K
Symptom: On power up, giving: RAM ERROR AT 00203FFE (sometimes the last three alphanumerics varied)
Cure: Bad OKI MSM6295 at location C6
Symptom: Sound a mess
Cure: Bad OKI MSM6295 at location C6
Symptom: Starting speech ‘3 – 2 – 1 Go’ kept repeating
Cure: Pin 34 (A16) loose on OKI MSM6295 at location C6
Symptom: 1 pixel high horizontal black line across the whole display on every other pixel line. Also colours a bit off.
Cure: Bad output on pin 15 of the 74LS298 at location I3
