Confidential
9-21
9.2.4.3 Malfunction
When taking countermeasures for malfunctions as described in this section, check connectors for
contact failure before measuring the voltage at the specified connector pins.
(1) No AC power supplied
Possible cause
Step
Check
Result
Remedy
Supply
voltage
1
Is the correct voltage
present at the outlet?
No
Inform the user that the correct
voltage is not supplied at the
outlet.
Power plug
2
Is the power cord securely
plugged into the outlet?
No
Plug the power cord securely
into the outlet.
Fuse (F1, F2)
3
Is the fuse blown?
Yes If the fuse blows again
immediately after replacing the
low-voltage power supply PCB,
check that there is not a short
circuit somewhere in the AC
power supply line.
Wiring
4
Unplug the power supply
plug. Is there a broken
wire between the AC input
connector of the low-
voltage power supply and
the power plug?
Yes Replace the AC power cord.
(2) No DC power supplied
Possible cause
Step
Check
Result
Remedy
AC power
supply
1
Is AC power supplied
between terminals LIVE
and NEUTRAL when the
power plug is plugged into
the outlet?
No
Follow the same check
procedure of (1) “No AC power
supplied”.
Wiring, DC
load
2
Turn on the power switch.
Measure the voltages
between the terminals. Do
the measured voltage
satisfy the prescribed
valued in the table below?
Yes Turn off the power switch,
reconnect the connector and
turn the power switch on again.
If the protector circuit is
activated, check the connector,
the wiring from the connector,
and the DC load.
Low-voltage
power supply
PCB
3
Refer to the chart * 1
below.
No
Replace the low-voltage power
supply PCB.
*1
PCB
+lead pin
- lead pin
Voltage
Main CN5-4
CN5-6
CN5-7
CN5-2
CN5-8
CN5-8
Approx. 24V
Approx. 8V
Approx. 3.3V
Summary of Contents for DCP 8060
Page 19: ...Confidential CHAPTER 1 PARTS NAMES FUNCTIONS ...
Page 28: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Page 65: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Page 92: ...Confidential CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR ...
Page 95: ...Confidential 4 2 Cover page sample End page sample ...
Page 96: ...Confidential CHAPTER 5 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Page 246: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 292: ...Confidential CHAPTER 7 CLEANING ...
Page 294: ...Confidential CHAPTER 8 MAINTENANCE MODE ...
Page 302: ...8 7 Confidential For white and black scanning a b c d e f g h i j ...
Page 314: ...8 19 Confidential Cover page sample End page sample Fig 8 10 ...
Page 323: ...Confidential CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING ...
Page 458: ...B Power Supply PCB 100V Confidential ...
Page 459: ...B Power Supply PCB 200V Confidential ...
Page 495: ...January 06 SM FAX049 8C5B03 9 Printed in Japan ...