Difference between revisions of "PCB Repair Logs World Rally"
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'''Repairer:''' [http://www.aussiearcade.com.au/member.php/3136-VectorGlow VectorGlow]<br> | '''Repairer:''' [http://www.aussiearcade.com.au/member.php/3136-VectorGlow VectorGlow]<br> | ||
'''Forum Thread:''' [http://www.aussiearcade.com.au/showthread.php/23443-World-Rally-Repair-Log World Rally PCB Repair]<br> | '''Forum Thread:''' [http://www.aussiearcade.com.au/showthread.php/23443-World-Rally-Repair-Log World Rally PCB Repair]<br> | ||
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'''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<br> | |||
'''Cure:''' Bad outputs on pins 12 and 13 of the 74LS298 at location G3<br> | |||
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'''Symptom:''' Some text a bit mangled<br> | |||
'''Cure:''' Broken pin 7 on 27C4001 at location I11<br> | |||
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'''Symptom:''' Couldn’t adjust sound volume correctly<br> | |||
'''Cure:''' A 5K volume pot had been used instead of the correct 4.7K<br> | |||
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'''Symptom:''' On power up, giving: RAM ERROR AT 00203FFE (sometimes the last three alphanumerics varied)<br> | |||
'''Cure:''' Bad OKI MSM6295 at location C6<br> | |||
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'''Symptom:''' Sound a mess<br> | |||
'''Cure:''' Bad OKI MSM6295 at location C6<br> | |||
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'''Symptom:''' Starting speech ‘3 – 2 – 1 Go’ kept repeating<br> | |||
'''Cure:''' Pin 34 (A16) loose on OKI MSM6295 at location C6<br> | |||
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'''Symptom:''' 1 pixel high horizontal black line across the whole display on every other pixel line. Also colours a bit off.<br> | |||
'''Cure:''' Bad output on pin 15 of the 74LS298 at location I3<br> | |||
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<br>[[PCB_Repair_Index|Back to PCB Repair Index]] | <br>[[PCB_Repair_Index|Back to PCB Repair Index]] | ||
Revision as of 13:24, 20 August 2012
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
