1 of 4
Preliminary copy – for evaluation - not released
Schick CDR PanX
Error 18 troubleshooting guide
Check normal operation. If error 18 appears then continue
Power Supply
Board
1) Switch
machine OFF.
2) Remove top
cover
3) Check fuses
FU304 and
FU305 on the
Main power
supply board
and replace as
necessary.
4) If fuses were
replaced then
turn machine
ON and retest
system. If the
error is not
present then
take a test
image to check
for X-ray
emission and
whether sensor
recalibration is
necessary.
5) If error still
appears or
FU304 and
FU305 are good
then check the
voltage at
connector
XC303.
Loosen (do not remove) this screw
to unclamp to top cover.
Slide the cover toward the front
and lift to remove
Check and replace fuses
FU304 and FU305 as
necessary
Caution: Dangerous Voltages are present
during parts of this testing. Please observe all
applicable precautions for High Voltage
Systems. In addition parts of this test include
emission of ionizing radiation. Please use
shielding.
2 of 4
Preliminary copy – for evaluation - not released
Remove this cover
Power Switching Unit
6) To check the voltage at XC303.
a) Turn machine OFF
b) set DMM to DC Volts (ensure DMM is capable of measuring >300
VDC).
c) Connect probes to XC303.
d) Power machine ON.
e) Enter Service Mode and go to Service Test 10 (see Chapter 8 of the
CDR PanX Installation and Service Guide PN: B1051402).
f) Stand clear of X-ray path and energized components.
g) Press and hold the exposure switch momentarily.
h) Check DMM for proper reading of about 300 VDC.
If Fuses FU304 and FU305 are good and the proper voltage is not present
then replace the CDR PanX Power Supply Board (Schick PN: A4501200 for
115 V systems and Schick PN: A4501300 for 230 V systems).
7) If the proper voltage is present then continue below.
Power Switching Unit
Check for 300 VDC at
XC303 during X-ray
3 of 4
Preliminary copy – for evaluation - not released
1) Turn pan machine OFF.
2) Remove the cover.
3) Check Voltage at connector XC201.
a) Turn machine OFF
b) set DMM to DC Volts (ensure DMM is capable of measuring >300
VDC).
c) Connect probes to XC201.
d) Power machine ON.
e) Enter Service Mode and go to Service Test 10 (see Chapter 8 of the
CDR PanX Installation and Service Guide PN: B1051402).
f) Stand clear of X-ray path and energized components.
g) Press and hold the exposure switch momentarily.
h) Check DMM for proper reading of about 300 VDC.
If voltage is significantly low, the cable between the Power Supply Board
and Power Switching Unit may be bad.
If the voltage is correct then
3) If the voltage is correct then replace the Power Switching Unit board
(Schick PN: A4504000). Be aware of proper rewiring and cable replacement.
4) Turn machine ON and retest as above.
5) If the error still appears then replace the Tubehead.
Tubehead Replacement
1) Turn machine OFF
2) Remove Tubehead covers.
3) Loosen locknut on Tubehead shaft.
4) Back out alignment pin from alignment disk.
5) Remove disk screw.
6) Remove disk by gently prying it up.
7) Remove Tubehead wiring and shield clamps. Make a note of wiring
for proper replacement.
Loosen locknut and
back out alignment
pin. These fasteners
are metric.
Remove disk
screw and gently
pry the disk off
the Tubehead
shaft
4 of 4
Preliminary copy – for evaluation - not released
8) Remove alignment nut/pin bracket.
9) Support the Tubehead
10) Remove the lock bracket.
11) Slide the Tubehead down until free.
12) Replace Tubehead by reversing the steps.
13) When Tubehead is replaced and wiring is correct then turn the
machine ON and retest as above.
Support the
Tubehead weight
and remove the lock
bracket
-
1
-
2
-
3
-
4
Ask a question and I''ll find the answer in the document
Finding information in a document is now easier with AI
Other documents
-
Midmark Preva Dental X-Ray System User guide
-
-
-
Midmark JB-70 Dental X-Ray System User manual
-
-
-
-