Hello everybody,
I have been faced some problems on a MOBILETT HP PLUS. It displays ERROR 23 after an exposure release. I have run all service programs, except P12,P13 (not available on FW version 0.8H), all is O.K.
I have checked cabling, connections, fuses. I have already the inverter module replaced.
What could the problem be? Any suggestion will be highly appreciated.
Thanks before hand.
Regards.
My email: vijmaal@gmail.com
Hi Lenny,
Thanks a lot for replying.
Yes it does.
The drive pulses (INVA,INVB) on D13 are present, but not o.k. Pulse INVA looks like two spikes,one positive (+5V)and one negative (-5V). Pulse INVB is a negative square pulse 6.8µs wide with one positive spike.
What does it mean?
How can I be sure if the tube is arcing?
Regards.
Tests and measurements in the high voltage circuit 6
• Connect the oscilloscope measurement cables to measuring points HTPOS and HTNEG
or HT on D1.
• Adjust the trigger point to the falling edge of the high voltage curve and set the time to
20 - 50 ms/Div.
• If the high voltage cannot be displayed, check the tube current at measurement point
MAPOS on D1. Check the inverter current with an external current transformer.
• Measure HTPOS and HTNEG on D1. Record the fall times (90 - 10% of HT), high
voltage levels and whether the exposure was interrupted prematurely. Compare with
Fig. 2 "HT and inverter current, inverter and single tank normal" .
• Measure the inverter current using an external current transformer and the HT. Compare
with Fig. 1 "HTPEAK and inverter current, inverter and single tank normal" .
• In case of an error, compare the oscillogram with Fig. 1 "HTPEAK and inverter current,
inverter and single tank normal" .
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Vic MayAl
MOBILETT HP PLUS ERROR 23
September 04, 2015 04:05
Hello everybody,
I have been faced some problems on a MOBILETT HP PLUS. It displays ERROR 23 after an exposure release. I have run all service programs, except P12,P13 (not available on FW version 0.8H), all is O.K.
I have checked cabling, connections, fuses. I have already the inverter module replaced.
What could the problem be? Any suggestion will be highly appreciated.
Thanks before hand.
Regards.
My email: vijmaal@gmail.com
to rate and post a comment
Lenny Place
re: MOBILETT HP PLUS ERROR 23
September 05, 2015 09:31
does it error on all techniques low and high KV settings? it could be the tube arcing
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Vic MayAl
re: re: MOBILETT HP PLUS ERROR 23
September 06, 2015 08:04
Hi Lenny,
Thanks a lot for replying.
Yes it does.
The drive pulses (INVA,INVB) on D13 are present, but not o.k. Pulse INVA looks like two spikes,one positive (+5V)and one negative (-5V). Pulse INVB is a negative square pulse 6.8µs wide with one positive spike.
What does it mean?
How can I be sure if the tube is arcing?
Regards.
to rate and post a comment
Lenny Place
re: re: re: MOBILETT HP PLUS ERROR 23
September 08, 2015 06:06
Tests and measurements in the high voltage circuit 6
• Connect the oscilloscope measurement cables to measuring points HTPOS and HTNEG
or HT on D1.
• Adjust the trigger point to the falling edge of the high voltage curve and set the time to
20 - 50 ms/Div.
• If the high voltage cannot be displayed, check the tube current at measurement point
MAPOS on D1. Check the inverter current with an external current transformer.
• Measure HTPOS and HTNEG on D1. Record the fall times (90 - 10% of HT), high
voltage levels and whether the exposure was interrupted prematurely. Compare with
Fig. 2 "HT and inverter current, inverter and single tank normal" .
• Measure the inverter current using an external current transformer and the HT. Compare
with Fig. 1 "HTPEAK and inverter current, inverter and single tank normal" .
• In case of an error, compare the oscillogram with Fig. 1 "HTPEAK and inverter current,
inverter and single tank normal" .
do you have the troubleshooting manual
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