12 July 2024, 05:23 | #1 |
Amiga Fetish
Join Date: Dec 2008
Location: Downstate NY
Age: 49
Posts: 269
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A1000 stopped powering external floppy drive
Out of nowhere, my A1000 stopped to power the external floppy drive. I have tested with two different (1010 and SupraDrive) and for both I can hear only one click after I turn on power.
Which pin should I test for the voltage or what else can be wrong? Capacitors in PSU? Thanks |
12 July 2024, 15:45 | #2 |
Registered User
Join Date: Feb 2010
Location: SnowLand, Canada
Posts: 75
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Check pins 23 (12V) and 12 (5V) of the floppy port, Pins 3-7 are ground..
If there's no voltage there you can go back to check FB39/FB28 (there's 11 ferrites in a line right behind J7/RN5, the two closest to the connector are the 5V&12V..) Other than that is swap the CIA's and see if it has any effect.. then there's a few TTL that might cause a problem.. Grab the A1000 schematics / layout from here to get a better idea of the circuit.. https://www.retro-commodore.eu/amiga-tech/ |
13 July 2024, 01:49 | #3 |
Amiga Fetish
Join Date: Dec 2008
Location: Downstate NY
Age: 49
Posts: 269
|
I have checked pin #23 and there is 11.97V and on pin #12 there is 5.15V
Should I run Amiga Test Kit or DiagROM on that A1000 or just swap CIA's chips on slots? Side note - I have installed that new version of ReJuvenator for more than a year and all was fine till that shit happens. |
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