Commodore 1541 Maintenance Manual page 16

2. Connect AC line cord between J9 and AC outlet.
!WARNINGI
• DO NOT CONTACT THE FRAME ASSEMBLY OR
WIRING. THE VOLTAGE POTENTIALS PRESENT
ON THESE PARTS COULD CAUSE SEVERE INJURY
OR DEATH.
3. Place VIC-1541 power switch to ON and place power switch
on computer being used to ON.
e
If the VIC-20 is the computer in use,
enter the following command:
OPEN 15, 8, 15, "U-": CLOSE 15 <return>.
4. Load the Display T&S program into the computer. This
program may be loaded from the Test Demo disk or it may be
manually entered from the keyboard (The Display T&S program
is listed in Appendix C of the VIC-1541 Single Drive Floppy
Disk User's Manual.).
5. Place a factory recorded floppy disk into the VIC-1541.
6. Enter "RUN" <return> into the computer.
7. When the Display T&S program asks for a Track and Sector,
enter Track 1, Sector 1.
8. After the head settles and the Display T&S program begins
displaying Track information, adjust the Track #1 Stop
adjustment in the following manner (See Figure 5-3):
a. Loosen the adjustment lock-down screw.
b. Place .006 inch feeler gauge between Stop and
potrusion on the stepping motor hub. Carefully adjust
the Stop until feeler gauge just touches the potrusion
on the stepping motor hub and the Stop.
eoo
not disturb position of the stepping
motor shaft.
c. Tighten the adjustment lock-down screw.
9. Place VIC-1541 and VIC-20/COMMODORE 64 power switches to
OFF.
10. Reassemble the VI~·-1541
6-DISASSEMBLY/REASSEMBLY).
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