7-19
11
No cutting in Y direction.
a. Defective Y-cutter (Y-G) switch.
b. Abnormal Y-cutter vertical movement.
Problem
Check Item
Cause
Remedy
Repair
See
Section
a. Defective Y-
cutter (Y-G)
switch
Is the blue lead connector
connected to CN8 on the
Main PCB?
Leaf-switch assy not
connected correctly.
Correctly connect the
leaf-switch assy.
3.3.3
3.3.4
3.3.5
Is leaf switch Y-G not
contacted when the Y-cutter
is at the standby position?
Leaf switch incorrectly
installed.
Correctly install the
leaf switch.
3.3.1
3.3.3
3.3.4
3.3.5
3.4
Does the Y-sensor lever
press the leaf switch when Y-
cutter is not at the standby
position?
Y-sensor lever
incorrectly installed.
Correctly install the
Y-sensor lever.
3.3.1
3.3.3
3.3.4
3.3.5
3.4
Defective Y-sensor
lever.
Replace the Y-sensor
lever.
3.6.1
3.7.1
3.8.1
3.8.2
3.10
Is main CPU port P46 (Pin
47) at High level when leaf
switch Y-G is open?
Continuity problem in
Main PCB.
Replace Main PCB
assy.
3.3.3
3.3.4
3.3.5
Defective pull-up
resistor R31.
Replace Main PCB
assy.
Replace R31.
3.5.1
When leaf switch Y-G is
shorted, is CN8 on the Main
PCB shorted?
Defective leaf switch
assy.
Replace leaf switch Y
assy.
3.3.1
3.3.3
3.3.4
3.3.5
3.4
Is main CPU port P46 (Pin
47) at Low level when CN8
on the Main PCB is shorted?
Continuity problem in
Main PCB.
Replace Main PCB
assy.
3.3.3
Defective series
resistor R27.
Replace Main PCB
assy.
Replace R27.
3.3.4
3.3.5
When main CPU port P46
(Pin 47) is at Low level, is this
recognized by the main
CPU?
Defective main CPU#1.
Replace Main PCB
assy.
Replace
CPU#1.
3.5.1
b. Abnormal Y-
cutter vertical
movement
Does the Y-cutter cam rotate
when the trimming motor (TC
motor) rotates?
Problem with planet
gear operation.
Apply KS64F silicon
grease to the four
bearings.
Replace the TY
planet gear.
3.3.1
3.3.3
3.3.4
Does the Y-diversion lever
rotate when the Y-cutter cam
rotates?
Y-extension springs
L/R incorrectly
installed.
Correctly install Y-
extension springs
L/R.
3.3.5
3.4
3.15
Foreign matter under
the Y-diversion lever
Clean out foreign
matter.
Is Y-cutter assy mounted
correctly?
Incorrectly mounted Y-
cutter assy.
Mount the Y-cutter
assy correctly.
−−−
Содержание LX-200
Страница 1: ...SERVICE MANUAL MODEL LX 200 LX 900 LX 910D REVISED EDITION May 2000 ...
Страница 4: ...Chapter 1 SPECIFICATIONS ...
Страница 8: ...Chapter 2 MECHANISMS ...
Страница 18: ...Chapter 3 DISASSEMBLY PROCEDURES ...
Страница 60: ...Chapter 4 REASSEMBLY PROCEDURES ...
Страница 107: ...Chapter 5 ELECTRONIC CONTROLLERS ...
Страница 128: ...Chapter 6 MAINTENANCE ...
Страница 137: ...6 8 Y Diversion Lever E two positions Ring Y cutter guide shaft Y diversion lever assy Fig 6 1 14 Y Diversion Lever ...
Страница 151: ...Chapter 7 TROUBLESHOOTING ...
Страница 176: ...APP 1 Appendix Main PCB Circuit Diagram ...
Страница 177: ...May 2000 86S004BE3 Printed in Japan ...