2 x Commodore 1541 (1540050 / 251830) Repair
Commodore Floppy Drive 1541 (1540050) Repair #1
Defects:
- Drive access problems (IEC): drive resets but the computer freez with a “searching for”
- The RED led flashes twice times then stops and start again and motor runs continuously.
- The RED led flashes repeatedly every second without stopping and motor runs continuously.
Replaced parts:
- Replaced 6522 (UC3)
- Replaced 6522 (UC2)
- Replaced 901229-03 ROM (UB4)
Commodore Floppy Drive 1541 (251830) Repair #2
Defects:
- The RED led flashes repeatedly every second without stopping and motor runs continuously.
Replaced parts:
- Replaced MOS 8713 [74LS04] (UC6)
Categories: Projects / Repairs, Today, Various
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