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.com P/N 10187-000 7/98
Some troubleshooting and functional checks may be aided by using the
Medi-Therm II machine’s service modes of operation.
All service modes are entered from service mode I by pressing the appropriate
digital control panel button within 10 seconds of entry into service mode 1. If no
button is pressed after service mode I is entered, the machine will reset itself to
standby mode after 10 seconds. See table 3 for a description of each mode.
To initiate service mode 1:
1.
Turn machine off.
2.
Remove the 6 screws holding the head to the base.
Wear a static control device connected to the chassis ground
to prevent electrostatic discharge. (See figure 5, p. 35.)
Electrostatic discharge can damage the control/display
board.
3.
Lift the head, press and hold service button S3 on the low voltage
control/display board (figure 5), then turn the machine on.
In service mode 1, the machine will display the last RFU* code
(on the
BLANKET
display) and the software version (on the
PATIENT
display). An RFU code may help to debug a machine
which has shut down due to a
REMOVE FROM USE
condition
(table 2).
Pressing the
TEST LIGHTS
button while in service mode I will
reset the RFU code to zero. Whenever returning a machine to
service, reset the RFU code to zero to avoid basing future
troubleshooting decisions on an old code.
NOTE: Early model machines containing version 1.0 software
do not have the RFU reset feature. If this feature is
desired, contact Gaymar's Technical Service
Department. An updated EPROM with this feature can
be purchased and installed in older model machines.
* RFU =
REMOVE FROM USE NOW / MACHINE SHUTDOWN
CAUTION
8.0
TROUBLESHOOTING
& SERVICE MODES
8.1
SERVICE MODES
TROUBLESHOOTING
SERVICE MODES
34
SERVICE MANUAL
Medi-Therm II
