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01.04.2014, 19:48 Uhr
dk_spb
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I trying to repair A5120 5¼-Zoll-Variante, alt.
I try to start it with: Slot1 (left) - K3526 062-8600 OPS64 Slot2 - K5122 062-8250 AMF Slot4 - K2526 062-8110 ZRE Slot5 - K7024 012-6820 ABS
When I have started repair, after power on, A5120 try to find boot disk: LED on each disk drives turn on for one second and turn off. And I can hear 'beep' sound during access to drive A. But all drives motor turn off. All drives has locked spindle motor. And 'beep' sound produced by motor of drive A. I have repair this motor (I have moved magnet inside motor back to center; it still work with 'beep' sound). Now when I power on, computer try to find boot disk. If disk inserted into drive A and door is locked computer try to read disk and never stop access to disk. But, if I move AMF to slot 3, computer turn on each drive only for one second and stop it. Which slot correct for AMF?
And second question: did ABS start generate BSYN signal for monitor after power on or it need load software from disk before? I can't see any signal on BSYN and VIDEO pins (by oscilloscope).
All six LEDs on the 'watcher' board are on. Power is good (+4.96V, +11.96V). I have removed ASS board (K8025,062-8440) because it is broken - A5120 don't try to find boot disk then ASS board inserted. Dieser Beitrag wurde am 01.04.2014 um 19:50 Uhr von dk_spb editiert. |