A1000 stopped powering external floppy drive

JackTheKnife · 12 July 2024, 05:23

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

Khyron · 12 July 2024, 15:45

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/

JackTheKnife · 13 July 2024, 01:49

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.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
IBM Floppy drive -> External Amiga floppy drive?	Rampage	support.Hardware	9	14 January 2019 15:54
Floppy drive power connector (on Amigastore's External Floppy Disk Drive Adapter)	arkpandora	support.Hardware	4	18 September 2017 23:41
A1200 Floppy drive stopped reading	Toomuchwine	support.Hardware	4	26 August 2015 08:58
Wanted: Amiga External Floppy Drive Case/Housing with Interface (or dead drive)	Starglider 2	MarketPlace	1	04 August 2015 15:53
A1000 floppy drive	boing_1000	support.Hardware	4	04 July 2006 06:58

12 July 2024, 05:23	#1
JackTheKnife Amiga Fetish Join Date: Dec 2008 Location: Downstate NY Age: 49 Posts: 269	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
Khyron Registered User Join Date: Feb 2010 Location: SnowLand, Canada Posts: 75	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
JackTheKnife 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.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)