Ransburg 9040 Classic HV Power Supply 76447 - Manual (Page 33)

CP-97-02.5
9040 Classic for REA & M90 Systems - Maintenance
3 0 3 0 3 0 3 0 3 0
TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE
AC Power ON AC Power ON AC Power ON AC Power ON AC Power ON
Indicator (Green
Indicator (Green Indicator (Green Indicator (Green Indicator (Green
LED) Does Not
LED) Does Not LED) Does Not LED) Does Not LED) Does Not
Light when ON/OFF
Light when ON/OFF Light when ON/OFF Light when ON/OFF Light when ON/OFF
Switch is ON
Switch is ON Switch is ON Switch is ON Switch is ON
No or Low kV No or Low kV No or Low kV No or Low kV No or Low kV
Output at Spray
Output at Spray Output at Spray Output at Spray Output at Spray
Applicator when HV
Applicator when HV Applicator when HV Applicator when HV Applicator when HV
ON Indicator (Red
ON Indicator (Red ON Indicator (Red ON Indicator (Red ON Indicator (Red
LED) is Lit
LED) is Lit LED) is Lit LED) is Lit LED) is Lit
1. Front panel fuse 1FU or PC board
fuse F2 defective
2. Connector 7PL or 9PL not properly
plugged into main PC board
3. Improper input line voltage
4. Improper exhaust fan or conveyor
interlock connections
5. Defective ON/OFF switch 1SW
6. Defective power supply 1SUP
7. Defective LED display board
1. High voltage adjust knob not set to
proper value
2. Connector 6PL or 1PL not properly
plugged into respective locations
3. Defective spray applicator or high
voltage cable
4. Loose or broken wire in power
supply
5. Main PC board defective
6. Defective high voltage multiplier
General Problem General Problem General Problem General Problem General Problem Possible Cause Possible Cause Possible Cause Possible Cause Possible Cause Solution Solution Solution Solution Solution
1. Replace defective fuse.
2. Properly attach connector.
3. Ensure voltage across terminals L1 and N of
terminal block 1TB is between 90 and 264
VAC.
4. Correct connection so that voltage across
terminals L2 and N of 1TB is between 90 and
264 VAC.
5. Voltage across terminals 1A and 2A of ON/
OFF switch 1SW should be between 90 and
264 VAC. If not, replace switch 1SW.
6. Voltage across terminals 2 and 3 of plug 7PL
on main PC board should be 18 VDC. If not,
replace power supply 1SUP.
7. If all other functions of power supply are
normal, replace LED display board.
1. Set high voltage adjust knob to proper value.
2. Properly attach connector.
3. Perform a kV Output Test on the power supply.
If proper readings are obtained, check cable or
spray applicator for cause (see spray applicator
service manual).
4. Check all wiring connections for integrity.
Repair wiring as needed.
5. Disconnect 1PL from high voltage multiplier
and plug into LTST5000 Tester. If improper
readings are obtained, replace main PC board.
6. Disconnect HV cable from power supply. If
problem is still present, connect LTST5000
Tester to 1PL and test. If results of test are
OK, replace High Voltage Multiplier.
(Continued On Next Page)
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