ROM DIAGNOSTICS – TEST 1
From game over, depress ADVANCE IN
RESULT | CRT | LED INDICATION | CORRECTIVE ACTION | |
INDICATION | ||||
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PASS | ALL ROMS OK | ¡•¡¡ | None | |
2nd LED blinks | ||||
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| twice. |
| |
| ROM FAILURE | ¡•¡¡ | Replace ICx on ROM Board | |
FAIL | x | 2nd LED lights. | or depress ADVANCE in | |
| (x=ROM No | Chip Indicated: | ||
| IC1 | |||
| 1 – 12) | ¡¡¡• | ||
|
| ¡¡•¡ | IC2 | |
|
| ¡¡•• | IC3 | |
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| •¡¡¡ | IC4 | |
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| •¡¡• | IC5 | |
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| •¡•¡ | IC6 | |
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| •¡•• | IC7 | |
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| ¡•¡¡ | IC8 | |
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| ¡•¡• | IC9 | |
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| ¡••¡ | IC10 | |
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| ¡••• | IC11 | |
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| ••¡¡ | IC12 | |
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RAM DIAGNOSTICS – TEST 2
From ROM Diagnostics depress ADVANCE in
RESULT | CRT | LED INDICATION |
| CORRECTIVE ACTION | |
INDICATION |
| ||||
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| |
TESTING | Random | - | Depress ADVANCE in AUTO | ||
Pattern |
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| to bypass test. | ||
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| |||
PASS | ALL RAMS OK | •¡¡¡ | - |
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|
1st LED blinks |
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| ||
|
| twice. |
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| RAM FAILURE | •¡¡¡ | Replace RAM (see | ||
FAIL | xy | 1st LED lights. | following) or depress | ||
| (x=Bank, |
| ADVANCE in | ||
| Bank Indicated: |
|
|
| |
| y=Chip No) | ¡•¡¡ = 1 | Depress ADVANCE in | ||
|
| •¡¡¡ = 2 |
| ||
|
| ¡¡•¡ = 3 |
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| Chip Indicated: | Replace in bank: | ||
|
| 1 | 2 | 3 | |
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| ¡¡¡• = 1 | 1R | 2R | 3R |
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| ¡¡•¡ = 2 | 1S | 2S | 3S |
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| ¡¡•• = 3 | 1T | 2T | 3T |
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| •¡¡¡ = 4 | 1U | 2U | 3U |
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| •¡¡• = 5 | 1W | 2W | 3W |
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| •¡•¡ = 6 | 1X | 2X | 3X |
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| •¡•• = 7 | 1Y | 2Y | 3Y |
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| ¡•¡¡ = 8 | 1Z | 2Z | 3Z |