TROUBLESHOOTING CHART
CHECKING AIR PUMP COIL ASSEMBLY CPM75-208-B
SET METER TO V~ AND
TAKE READING ON
TWO TEMINAL
CONNECT TO POWER.
IT SHOULD BE 19.5
VAC. POWER SHOULD
BE ON.
SET METER TO OHMS
AND TAKE READING
ON DISCONNECTED
TERMINALS WITH
POWER OFF UNIT.
IT SHOULD BE 32
OHMS.
LOW INK LIGHT CONNECTOR CHECK
SET METER TO DC VOLTAGE.
NOTE :
TWO TOP WIRE ARE FROM RESERVOIR AND
BOTTOM TWO ARE FROM THE LAMP.
POWER MUST BE ON.
POWER SUPPLY TRANSFORMER CHECK
CPM11-003-120 CPM75-003-115
CPM11-003-240 CPM75-003-240
SET METER TO AC VOTAGE.
MEASURE THE TRANSFORMER
PLUGED INTO AN AC OUTLET.
PIN #1 + POSITIVE
PIN #2 – NEGATIVE RETURN
PIN #3 GROUND
PIN #4 NO CONNECTION
LOW INK LIGHT CONNECTOR
DIODE RESISTOR
CPJ00-009-0 & 25 OHM
SET METER
TO OHMS
MICROJET Trouble-Shooting Guide 14
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