AM-300 (serv.man8). Chapter 2 (Adjustments). - Sharp Copying Equipment Service Manual (repair manual). Page 6

AM-300DE

2 – 6

ICPs (IC Protectors) are installed to protect the CIS unit, Scanner
motor drive circuit, Pickup motor drive circuit, Main motor drive circuit
and IC22 circuit. ICPs protect various ICs and electronic circuits from
an overcurrent condition.

The location of ICPs are shown below:

1) F8 (KAB5002 201) is installed in order to protect IC’s from an

overcurrent generated in the CIS unit. If F8 is open, replace it with a
new one.

2) F3 (KAB3202 202) is installed in order to protect IC’s from an

overcurrent generated in the scanner motor drive circuit. If F3 is
open, replace it with a new one.

3) F5 (KAB5002 251) is installed in order to protect IC’s from an

overcurrent generated in the IC22 circuit. If F5 is open, replace it
with a new one.

4) F6 (KAB3202 102) is installed in order to protect IC’s from an

overcurrent generated in the pickup motor drive circuit. If F6 is
open, replace it with a new one.

5) F7 (KAB2402 402) is installed in order to protect IC’s from an

overcurrent generated in the main motor drive circuit. If F7 is open,
replace it with a new one.
In addition to the replacement of F3, F5, F6, F7 and F8, the factor
causing F3, F5, F6, F7 and F8 to open must also be repaired. If
not, F3, F5, F6, F7 and F8 will open again.
Replacement parts

KAB3202 202 (Sharp code: QFS-L1027YCZZ)

KAB5002 251 (Sharp code: QFS-L2021XHZZ)

KAB3202 102 (Sharp code: QFS-L0004QCZZ)

KAB2402 402 (Sharp code: QFS-L2025XHZZ)

KAB5002 201 (Sharp code: QFS-L2016XHZZ)