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Conference hydra::amiga_v1

Title:	AMIGA NOTES
Notice:	Join us in the NEW conference - HYDRA::AMIGA_V2
Moderator:	HYDRA::MOORE

Created:	Sat Apr 26 1986
Last Modified:	Wed Feb 05 1992
Last Successful Update:	Fri Jun 06 1997
Number of topics:	5378
Total number of notes:	38326

4084.0. "Problems with A1010 floppy unit" by KETJE::VLASIU () Wed Sep 05 1990 05:54

    This weekend my second floppy unit (A1010) gave me the first time the
    "UNREADABLE DISK" message (when using info command). At that moment I
    took off the disk and put it back and after it worked ok.
    ..But, yesterday when I started the Ami, no way to use the floppy unit.
    I had allways unreadable disks. The unit senses the presence of the
    disk but does not recognize it. It just does the usual disk access when
    I introduce a disk and nothing more. I'll try today to disconnect and
    connect back the unit but it seems to be well connected.
    Is it the unit faulty (if it was in the Ami the problem, I think the
    df0: would be affected too but actually df0: works) ?
    Has anyone had a similar experience ? Can I fix it at home by myself ?
    
    Thanks in advance for any answers,
    Sorin
    
    PS. I have the unit since 2 years now.

T.R	Title	User	Personal Name	Date	Lines
4084.1	Check everything, then panic!	SDOGUS::WILLIAMS	TOPGUN	`Thu Sep 06 1990 18:08`	10
	The floppy (internal and external) are controlled by (for DF1: and DF2:) U301 and DF0: is controlled by U300. U300 & U301 are the Complex Interface Adapters (CIA chips). You may have lost a chip or (more likely) you have lost a drive. You may be able to adjust the speed (small pot on bottom side of the drive), but probably you need a new disk drive. One other thing to check (rare but possible) is whether your voltage and current are stable from the wall and thru the power supply. TOPGUN
4084.2	Bad luck ?	KETJE::VLASIU		`Fri Sep 07 1990 04:51`	15
	It's bad if I have to change the drive. The fiability is really a problem in my case. When I bought the Ami, after 2 weeks of moderate use it died and was repaired under guarantee (the shop gave me a replacement machine for the 1 month repair time). My initial display CBM 1084 died after 1 day of use and I got my money back. I bought after a Philips 8833 which had image problems (the famous image pop) so I had to return it back and I got another one with the same problem and after one more with problem and .. finally the one I have now which is quite ok (slight pop). 4 monitors in total returned back (in 2 shops). And now after 2 years the floppy goes down. I shall not comment more. I wish at least the A590 continues to work as well as now the longest time. Thank you very much for the information. Sorin (who'll take a very big hammer to fix the problem)
4084.3	.........	KETJE::VLASIU		`Fri Sep 07 1990 04:57`	5
	Sorry, I forgot to say that my initial A501 (memory expansion) had a clock forgetting the time and date so I had to replace it (under guarantee) the very first weeks.. Sorin
4084.4	FWIW	DECWET::DAVIS	You always get what you deserve	`Fri Sep 07 1990 12:10`	2
	Maybe you should check your incoming AC power. Some household utility lines are notoriously lousy.
4084.5	grounded?	HYSTER::DEARBORN	Trouvez Mieux	`Fri Sep 07 1990 13:53`	9
	I was reading an old, old Amazing Computing last night. They said that if your system is not properly grounded, you will get disk problems. If you have a two prong adapter on your system power cord, the system probably is not properly grounded. Worth a look. Randy
4084.6	A1010 problem again	NBOIS2::FRIES	HURZ !!!	`Mon Dec 02 1991 10:39`	15
	Hi, I have the same problems with my A1010. It works well on my A1000 and A3000/Amiga Dos 2.0 But when I boot KS 1.3, 'C:Info' says: "DF2: unreadable disk" or such. :-( trackdisk.device thinks that no disk is present if I insert one and vice versa. Any hints? Gerald