Troubleshooting - Sharp AR-FN8 Service Manual

TROUBLESHOOTING

I. ADJUSTMENTS ........................ 7-1
A. Electrical System
(finisher unit) ........................ 7-1
B. Electrical System (saddle
stitcher unit) ......................... 7-3
C. Electrical System (puncher
unit (option)) ......................... 7-5
II. TEST MODE .............................. 7-7
A. Finisher Unit ......................... 7-7
B. Saddle Stitcher Unit ............. 7-8
CHAPTER 7
III. ARRANGEMENT OF ELECTRICAL
PARTS ..................................... 7-10
A. Finisher Unit ....................... 7-10
B. Saddle Stitcher Unit ........... 7-18
C. Puncher Unit (option) ......... 7-26
D. Light-Emitting Diodes (LED)
and Check Pins by PCB ..... 7-30
IV. TROUBLESHOOTING ............. 7-32
A. Finisher Unit ....................... 7-32
B. Saddle Stitcher Unit ........... 7-42
C. Puncher Unit (option) ......... 7-50