TROUBLESHOOTING AND REPAIR
RETEST AFTER REPAIR
F-96 F-96
V350-PRO
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC
Required Action
Expected Results
Rt. displayLft.display
Test
Steps
46
47
48
dcon
GAS
GAS
14-pIn roCP
On
OFF
This will only appear if a potentiometer is still connect-
ed to the 14-pin amphenol connector. If this message
appears, disconnect the potentiometer from the 14-pin
amphenol connector.
Test steps 21-24 verify the functionality of the gas sole-
noid. If an oscilloscope is available, verify that the cur-
rent flowing through the gas solenoid is zero before the
solenoid is energized, increases to approximately
700mA (pull in current), remains at 700 mA for approxi-
mately 150 msec, and decreases to approximately
200mA (hold current). Press the local/remote pushbut-
ton to turn the gas solenoid on.
< - 150msec - >
700mA
200mA
0mA- - - - +
Or, the signal can be verified by measuring 12.3 VDC
+/- .5V from lead 553A to 554A (Lead 553A should be
positive)
Press the local/remote pushbutton again to turn the gas
solenoid off.
+------------------------+
+-----....------+
+-------------
After completing all of the above tests, the following will appear on the display.
PASS
DIAg
Verify this message appears for approximately 3 sec-
onds
