INFICON XTC/C Thin Film Deposition Controller - Manual (Page 152)

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XTC/C - XTC/2 Operating Manual
6.3.2 Troubleshooting the Instrument
Table 6-1 Troubleshooting the Instrument
SYMPTOM CAUSE REMEDY
1. power on LED not
illuminated a. blown fuse/circuit breaker
tripped a. have qualified personnel
replace fuse/reset circuit
breaker
b. electrical cord unplugged
from wall or back of
instrument b. re-connect power cord
c. incorrect line voltage c. have qualified personnel
verify line voltage, verify the
instrument is configured for
the correct voltage
2.unit "locks" up a. cover or back panels not
attached to the instrument. a. ensure all covers and
panels are in place and
securely fastened
b. high electrical noise
environment b. re-route cables to reduce
noise pickup (1 ft. away from
high power conducting lines
makes a sizeable reduction in
the amount of noise entering
the instrument), keep all
ground wires short with large
surface area to minimize
ground impedance
c. poor grounds or poor
grounding practice c. verfify proper earth ground,
use appropriate ground strap,
eliminate ground loops by
establishing the correct
system grounding, verify
proper instrument grounding
3. instrument does not retain
parameters on power down
(loss of parameters on power
up) a. faulty static RAM a. SRAM battery has a normal
life expectancy of ten years,
contact INFICON service
department
b. power supply problem b. contact INFICON service
department
4. some keys on front panel
function while others do not a. faulty keypad or faulty
keypad ribbon cable a. contact INFICON service
department
5. all keys on the front panel
fail to function a. instrument is "locked" up a. turn power to OFF or to
STBY, then to on, see item 2
above