3-118
Chapter 3 Troubleshooting
Check the wire to the applicable component for an open circuit
or poor contact by referring to Chapter 4 Wiring Data.
(WN4.3.5 +5 VDC-1) (WN4.3.6 +5 VDC-2)
(WN4.3.7 +5 VDC-3) (WN4.3.8 +5 VDC-4)
3. 3. 2. 4 +24 VDC POWER (+24V LVPS)
Procedure
Is +24 VDC measured between the +24V LVPS J502-1 (+) and
GND (-)?
Y
N
Is 120 VAC measured between the +24V LVPS J2-3 (+)
and J2-4 (-)?
Y
N
Go to the AC POWER FIP (IOT).
Is +5 VDC measured between the +24V LVPS J505-3 (+)
and GND (-)?
Y
N
Is +5 VDC measured between the I/F PWB J534-B4
(+) and GND (-)?
Y
N
Is +5 VDC measured between the MCU PWB
J400-5 (+) and GND (-)?
Y
N
Check the +5 VDC circuit to the MCU
PWB J400-5 by referring to Chapter 4
Wiring Data.
(WN4.3.5 +5 VDC-1)
(WN4.3.6 +5 VDC-2)
(WN4.3.7 +5 VDC-3)
(WN4.3.8 +5 VDC-4)
Check the wire between the ESS PWB, the I/F
PWB, and the MCU PWB. If no problems are
found, replace the ESS PWB. (PL13.1)
Check the wire between the I/F PWB J534-B4 and the
+24V LVPS J505-3 for an open circuit and poor
contact.
Turn Off the power switch and remove the J502.
Turn On the power after 10sec or more passes.
Is +24 VDC measured between the +24V LVPS P502-1
(+) and GND (-)?
Y
N
Replace the +24V LVPS. (PL9.1)
Check the +24 VDC circuit for a short circuit to a frame by
referring to Chapter 4 Wiring Data.
(WN4.3.13 +24 VDC-1) (WN4.3.14 +24 VDC-2)
(WN4.3.15 +24 VDC-3) (WN4.3.16 +24 VDC-4)
Check the wire to the applicable component for an open circuit
or poor contact by referring to Chapter 4 Wiring Data.
(WN4.3.13 +24 VDC-1) (WN4.3.14 +24 VDC-2)
(WN4.3.15 +24 VDC-3) (WN4.3.16 +24 VDC-4)
3. 3. 2. 5 +24 VDC POWER (IIT LVPS)
Procedure
Turn On the power.
Is +24 VDC measured between the IIT LVPS J702-1 (+) and
GND (-)?
Y
N
120 VAC measured between the IIT LVPS P700-4 (+) and
P700-3 (-)?
Y
N
Go to the AC POWER FIP.
Is +5 VDC measured between the IIT LVPS J705-4 (+)
and GND (-)?
Y
N
Check the +5 VDC circuit to the IIT LVPS J705-4 by
referring to the BSD CH1.6.
Is +5 VDC measured between the IIT LVPS J705-3 (+)
and GND (-)?
Y
N
Is +5 VDC measured between the IIT/IPS PWB J725-
7 (+) and GND (-)?
Y
N
Check the wire between the ESS PWB J344 and
the IIT/IPS PWB J727. If no problems are
found, replace the ESS PWB.
Check the wire between the IIT/IPS PWB J725-7 and
the IIT LVPS J705-3 for an open circuit or poor contact.
Replace the IIT LVPS. (PL16.4)
Check the wire to the appropriate part for an open circuit or
poor contact.
Summary of Contents for Workio DP-C401
Page 4: ...This page is intentionally left blank ...
Page 5: ...Chapter 1 General ...
Page 22: ...1 16 Chapter 1 General 1 3 Type of Paper ...
Page 23: ...1 17 Chapter 1 General ...
Page 24: ...Chapter 2 Maintenance ...
Page 63: ...Chapter 3 Troubleshooting ...
Page 118: ...3 44 Chapter 3 Troubleshooting I F PWB PL9 1 MCU PWB PL13 1 ...
Page 445: ...Chapter 4 Parts List ...
Page 548: ......