Troubleshooting
2
Monitor LEDs Do Not Light
PC-P430
19
2 - 2 Monitor LEDs Do Not Light
Is electric circuit OK?
Reference SD circuit
SD1
→
■
When 24VDC is supplied to the QPW-968 control
board, LED for 24VDC is lit.
• If the LED is lit, go to (1).
• If not, go to (2).
(
1
) 24VDC is supplied to the control board. Check the wir
-
ing/connection between CON4 on the QPW-968 control
board and the QPW-969 LED Board. If it is normal,
replace the QPW-969.
(
2
) 24VDC is not supplied to the QPW-968 control board.
Measure the voltage on the output terminal of G00
Switching Power Supply. Check that 24VDC is output.
• If 24VDC is output, go to (3).
• If 24VDC is not output, go to (4).
(
3
) Check the wiring/connection between G00 switching
power supply and the QPW-968 control board. If it is
normal, replace the QPW-968.
(
4
) Check the wiring/connection between G00 switching
power supply and Z00 noise filter.
Are power cable connection and Key switch OK?
2A
2A
Q00
2
3
1
404018
2_2_1A
■
See the drawings above and check the following:
1
The power cable is plugged completely.
2
The Key switch is turned on.
3
The Q00 circuit breaker is not tripped (not popped out).
•
The supply voltage is present on the outlet.
If these are OK, go to the right column.
Key
(Ready)
Monitor
Summary of Contents for PC-P430
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Page 7: ...General 1 PC P430 7 1 General PC P430 ...
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Page 15: ...Troubleshooting 2 PC P430 15 2 Troubleshooting PC P430 ...
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Page 31: ...Descriptions of Mechanisms 3 PC P430 31 3 Descriptions of Mechanisms PC P430 ...
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Page 51: ...Electrical Parts Location 4 PC P430 51 4 Electrical Parts Location PC P430 ...
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Page 59: ...Circuit Boards 5 PC P430 59 5 Circuit Boards PC P430 ...
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Page 69: ...Electrical Circuits 6 PC P430 69 6 Electrical Circuits PC P430 ...
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Page 74: ...You can download the latest manual http hip horizon co jp Anytime and Anywhere END SHEET ...