GE Compax 40CE, Руководство по обслуживанию системы

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Job Card IST 001
3 of
4
X−RAY TUBE & COLLIMATOR
INSTALLATION ON XT SUSPENSION
System Service Manual − SYSTEM COMPAX 40E, CE Marked
GE HEALTHCARE with MPH 50/65/80 (including XT, RS 85 and Tomo − Link)
REV 9 DIRECTION 2154260 − 100
65
5.2 Collimator Lamp voltage Selection Procedure
Before starting this procedure ensure that the XT control board and the Collimator lamp are
accessible (refer to Collimator SM for instructions).
1. Select on digital multimeter:
− V
AC
function
− Auto range (or manual range > 240 V
AC
).
2. Measure the actual voltage at Collimator lamp bulb base with the lamp switched ON.
3. With The GE type lamp, ensure that voltage is greater than 23V when the electrical jumper
J11 is in place.
4. With The Philips type lamp, if the voltage is within 21.5 − V
AC
24V
AC
range be sure that one
of the electrical jumper position next to J9 or J10 cannot be used to set the voltage closer to
22.5V
AC
(always above 21. V
AC
), this depends on the actual room line voltage available on
your system.
If so, then move jumper from J10 to J9. (Refer to table below for tap selection voltages).
Terminal blade
straight Terminal blade
straight
Field Lamp TAP select
J7
J7
J7
J7
J8
J9
J11
J10
20V
AC
TAP
24V
AC
TAP
26V
AC
TAP
22V
AC
TAP
Selected in HLA
5. If the voltage is out of the range 21.5 − 24 V
AC,
check the input line on the XT control board
(between J100 − 1 & J100 − 5). If it is not 230 V
AC
+/ − 12.5%, redo IST 02 of SM MPH 50/65/80
Dir. 2137354 − 100 and correct line voltage setting on generator.
If the input line is correct, move the electrical jumper to a more appropriate position in order to
keep the voltage within 21.5 and 24 V
AC
and idealy close to 22.5 V
AC
for the Philiips lamp and
greater than 23 V
AC
for the GE lamp.
6. Record actual final voltage reading at Collimator lamp bulb base only if you have to do HHS
measurement on your system.
Actual Voltage VAC