yet a VIC-1541 Trouble.


Hi all!

I have finally dusted off my commodore 64 that has been collecting dust
in my attic for the past 16 years. I did run into a problem with my VIC-
1541 disk drive.

TROUBLE:
When i turn on the disk drive the green LED turns on and the red LED
turns on for about 2sec and there's a humming from the drive.
If i reset the commodore the disk drive recieve the "reset" signal and
the red LED on the VIC-1541 turns on for 2 sec and the drive is humming.
This means they do at least communicate, yay! =)
When i try to load from the diskette (LOAD"$",8) or (LOAD"*",8,1) i get
the "SEARCHING FOR $" response from the commodore, but nothing happens
at the disk drive. The red LED does not turn on and there's absolutely
no humming from the drive.
not at any time does the reader-head move.

I TRIED THE FOLLOWING:
- Read 2.000 forums and a couple of repair guides.
- Turning everything off and on, checking cables etc etc etc.
- Switching place of the two SY6522 chips in the VIC-1541 (said to
control data flow from computer and to reader-head), no
difference at all.
- Checked for any visual flaws in the 7404 chip (M53296P) and it's
connections. (observe, this is the 154007 circuit card where the 7404
is not a clip-on chip).

What is there left to do?
Will I have to replace the two SY6522 chips?
Could it be the 7404 chip that needs to be replaced? (hope not).

If I do need to try new chips, where (except) ebay can you find these
things today?

Thanks in regards!
/Harpo

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