Electrical
5B6331 – 01JUN99
63
Adjusting the 5 V DC POWER SUPPLY Voltage - Serial No. below 100500
Warning
Dangerous Voltage
[1] De-energize the PROCESSOR.
[2] Allow the PROCESSOR to remain off for one full
minute.
[3] Rotate the POTENTIOMETER fully
counterclockwise and in small increments.
Note
If you increase the voltage to more than approximately
6.0 volts, the internal over-voltage protection reduces
the voltage through the POWER SUPPLY to 0 volts.
If you need to reset the POWER SUPPLY, do the steps
below.
[4] Energize the PROCESSOR.
[5] Connect a METER to the plus (+) and minus (-)
TERMINALS on the TERMINAL BLOCK.
[6] Rotate the POTENTIOMETER clockwise until you
obtain a reading of 5.50 volts.
Note
Rotate the POTENTIOMETER clockwise to increase
the volts, or counterclowise to decrease the voltage.
[7] Assemble the PROCESSOR.
+
-
FG
AC (N)
AC (L)
+
FG
AC (N)
AC (L)
205
205
200
200
GND
13
18
H150_0170CA
H150_0170CCA
SUPPLY
5 V DC POWER
POTENTIOMETER
BLOCK
TERMINAL
COVER
TERMINAL BLOCK