XP7000/XP5000
48
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PS CIRCUIT BOARD REPAIR GUIDE
1.
Applicable Circuit Board
This guide is applicable when repairing the circuit board specified in the table 1-1.
Table 1-1
Table 2-1
2.
Electrical Performance
2-1
Preparation (See page 51)
• Connect the PSW circuit board (XP7000=WF400100, XP5000=WF400200) to CN403, CN404 and CN405.
• Connect J401 and J402, or short-circuit CN406 and CN415 (for H/B/K/O destination). After repair, make these connections
to its original state.
• Adjust the power supply voltage suites each circuit boards. Refer to the table 1-1 above.
2-2
Voltages of Each Part (See page 51)
The output voltage is normal if it is in the range specified in the table 2-1 when turning the power on.
H/B/K/O
approx. +143.5 V
approx. -143.5 V
approx. +15.0 V
approx. -15.0 V
approx. +124.3 V
approx. -124.3 V
approx. +15.0 V
approx. -15.0 V
Measuring Item
+B
-B
+15 V
-15 V
+B
-B
+15 V
-15 V
Measuring Part
W406-W407
W407-W408
CN408 1-2 pin
CN408 3-2 pin
W406-W407
W407-W408
CN408 1-2 pin
CN408 3-2 pin
Model
XP7000
XP5000
Load Resistance
22 k-ohms, 3 W
22 k-ohms, 3 W
10 k-ohms, 1/4 W
10 k-ohms, 1/4 W
22 k-ohms, 3 W
22 k-ohms, 3 W
10 k-ohms, 1/4 W
10 k-ohms, 1/4 W
Output Voltage (DC)
U/T/A
approx. +141.4 V
approx. -141.4 V
approx. +15.0 V
approx. -15.0 V
approx. +113.1 V
approx. -113.1 V
approx. +15.0 V
approx. -15.0 V
Note: The output voltage may be out of the range if it is measured without the load resistance or the power supply voltage
differs from the specified in the table 1-1.
2-3
Discharge (See page 51)
To prevent the electrical shock (discharge of the electric charge from the capacitor), discharge electricity between the follow-
ing part when handling the PS circuit board.
• Between the positive (+) and negative (–) terminals of C420 and C421. If you have left the unit for 10 minutes or more after
turning the power off, you do not have to discharge.
• Between W406-W407, and W407-W408.
• Between the terminals of C402.
Model
XP7000
XP5000
Circuit Board
PS70U
PS70H
PS70A
PS50U
PS50H
PS50A
Part No.
WF397200
WF397300
WF397400
WF397600
WF397700
WF397800
Destination
U/T
H/B/K/O
A
U/T
H/B/K/O
A
Power Supply
AC 120 V
AC 230 V
AC 240 V
AC 120 V
AC 230 V
AC 240 V
Summary of Contents for XP7000
Page 30: ...XP7000 XP5000 30 B B 2NA WF39710 2 XP7000 2NA WF39710 2 XP5000 Pattern side...
Page 31: ...XP7000 XP5000 31 B B Pattern side 2NA WF39710 2 XP7000 2NA WF39710 2 XP5000...
Page 60: ...XP7000 XP5000 60 15Vp p 280Vp p YES OPEN IC402 2 IC402 2 IC402 1 2 LO COM Q407 IGBT B...
