TROUBLESHOOTING
DIAGNOSTIC POWER UP TESTS
4 - 2
I-E96-192-5A
®
DIAGNOSTIC POWER UP TESTS
If the troubleshooting guide fails to identify a problem in the
OIC console, follow the AC and DC power test procedures.
Check the AC voltages at the line input to the power entry
panel on all models except the tabletop. On the tabletop model,
the AC voltage is on the keyboard interface assembly.
AC Power Test
NOTE: When the instructions state to apply power to the OIC con-
sole, switch the main breaker to the ON position. To turn off the
power, switch the main circuit breaker to the OFF position.
1. Turn off power to the console. Disconnect AC power to all
equipment inside the console by unplugging the line cords
from the back of the power entry panel (keyboard interface
assembly for the IIOIC421 tabletop).
2. Apply power to the console by switching on the line circuit
breaker.
3. Use a digital voltmeter to measure the AC power at each of
the outlets as follows:
IIOIC421 tabletop: keyboard interface assembly has one
outlet marked AC OUT.
IIOIC422 console: power entry panel has five outlets
marked UPPER CRT, LOWER CRT, POWER SUPPLY,
BLOWER AUX. The fifth outlet is on the front of the unit
and is marked PERIPHERAL POWER.
IIOIC423 environmental: power entry panel has four out-
lets marked CRT, TERMINAL, LIGHT, A/C.
IIOIC424 panel mount: power entry panel has one outlet
marked CPU POWER.
4. The line voltage should be 90 to 132 VAC RMS for a 120-VAC
input and 180 to 264 VAC for a 240-VAC input. Refer to the
Site
Planning and Preparation
instruction for specific AC voltages.
5. Use the digital voltmeter to check each outlet and insure
that neutral, live and ground are wired correctly, and there are
no ground faults. Refer to
and
.
6. Turn off the power to the console. Verify that it removes
power from all outlets.
