Si-93
Troubleshooting
Troubleshooting
45
1.15
Dedicated LCD Remote Controller
When no indication is displayed on remote controller
Error Detection
Method
Check to see if remote controller displays indication.
Error Generating
Conditions
Possible Causes
Troubleshooting
Check 1, 2, 3 : Refer to page 46
Disconnect remote
controller cable from
both main unit
terminal board and
remote controller
terminal board.
Using tester, check
continuity between
two wires in cable.
Is
measured
value
∞
M
Ω
(infinity)?
NO
YES
With remote
controller cable
disconnected from
main unit PCB, check
voltage between P1
and P2 on main unit
terminal board.
Is
measured
value approx. 16
VDC?
NO
YES
Connect remote
controller cable to
main unit PCB, and
disconnect remote
controller. Check
voltage at the end of
cable on remote
control side.
Is
measured
value approx. 16
VDC?
NO
YES
There may be shorting in
remote controller cable.
Main unit PCB may be
faulty.
There may be open circuit
in remote controller cable.
Remote control PCB may
be faulty.
(HF014)
Check 1
Check 2
Check 3
Summary of Contents for VAM 500EJ
Page 5: ...Si 93 iv Table of Contents...
Page 7: ...Introduction Si 93 vi 1 1 1 Cautions in Repair Warning...
Page 8: ...Si 93 Introduction vii...
Page 11: ...Si 93 2 General Constructions...
Page 15: ...Si 93 6 Operation...
Page 21: ...Si 93 12 Maintenance...
Page 27: ...Si 93 18 Control Functions...
Page 35: ...Si 93 26 Circuit Operations...
Page 39: ...Si 93 30 Troubleshooting...
Page 59: ...Troubleshooting Si 93 50 Troubleshooting...
Page 61: ...Si 93 52 Supplementary Explanation...
Page 72: ...Si 93 Appendix 63 Part 8 Appendix 1 Appendix 65 1 1 Wiring Diagram 65...
Page 73: ...Si 93 64 Appendix...
Page 74: ...Si 93 Appendix Appendix 65 1 Appendix 1 1 Wiring Diagram VAM500EJVE VAM800EJVE VAM1000EJVE...
Page 75: ...Appendix Si 93 66 Appendix VAM2000EJVE...
Page 79: ...Si 93 iv Index...
