[comp.sys.amiga] Weird clock problem

dbk@teroach.phx.mcd.mot.com (Dave Kinzer) (07/25/89)

   I am having a strange problem with my Amiga's run time clock.

Configuration:
    A2000(B) Rev 4.2
    K/S 1.3
    A2090a W/ ST506 type drive
    A2052

Problem:
   1) Set the system clock with a 'setclock load'
   2) Using the 'date' command time marches forward (at apparently the
      correct rate)
   3) 65 seconds later, the time resets to the time of the setclock command.
   4) Repeat 2 and 3 and 4.

Tried:
   Rebooting
   Turning system off and restarting
   Original WB 1.3 disk

   Is this weird, or what?  It seems to be a software related thing since
time marches on correctly.  The real-time clock keeps time correctly, that
is, the time is correct at the setclock load.  I have my 1.2 ROM I could 
swap in if it seems like a thing to try, I just thought I'd see if anyone
out there had seen this before since swapping the rom requires a major
stripdown of the machine.




|    // GOATS - Gladly Offering All Their Support  Dave Kinzer (602)897-3085|
|   //  >> In Hell you need 4Mb to Multitask!  <<  uunet!mcdphx!teroach!dbk |
| \X/   #define policy_maker(name) (name->salary > 3 * dave.salary)         |

dbk@teroach.UUCP (Dave Kinzer) (07/29/89)

   The strange problem of the resetting time-of-day clock has been traced
to one of the 8520 chips not working.  I also noted last night that my
parallel port would send not data to the printer (also fixed).  Of course, I
needed to print right then, so I casually switched to using the serial port
until I replaced the chip.  Gawd, I love this machine.

   Suspected cause of failure: Thunderstorm last weekend.  I normally leave
the machine running, and I was out at the movies so I couldn't pull the
plug.  Much lightning, much heartache (well, a little anyway.)  This chip
also gets it's timing reference directly from the power supply (A2000 mode)
with no on-board protection.  Tisk Tisk. :^) 


--
            * * *   Imminent use of deathnet predicted.   * * *             //
Dave Kinzer  (602)897-3085  asuvax!mcdphx!teroach!dbk  Opinions are mine. \X/