Selcom Lemon II Floppy Drive Repair and Clean
Selcom Lemon II Floppy Drive Repair and Clean.
Defect: The Floppy Drive motor spins and the LED stays on but the R/W head does not move and don’t read anythings. This is a classic failure due to incorrect insertion of the Floppy Drive connector into the male connector on the side of the Floppy Drive Controller card.
By inserting the connector moved one row externally the supply consequently go to in the wrong places and the first IC to explode in the true sense of the word is the 74LS125 (see photo).
Replaced the component, everything has started to working again.
Taking advantage of the repair, i have cleaned the inside of the LEMON II Computer and done a DUMP of the EPROM, i also cleaned and lubrificate the mechanical parts of the Floppy Drive.
Gallery of the repair:
Download: Selcom Lemon II ROM EPROM Dump (890)
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