Sedecal SHF-310 - Page 291

HF Series Generators
T roubleshooting
TR-1005R4
51
IF E18 OR ROTOR ERROR
A
PPE
A
RS IN “PREP”
(
ONL
Y
FOR LF-R
A
C
)
VISUALLY CHECK
THAT ANODE IS
TURNING WHEN
PRESSING “PREP”
DOES IT TURN?
YES
NO
NO
YES
NO
VERIFY STARTER IS CONFIGURED TO
CORRECT TUBE AND CAPACITOR
INSTALLED.
+
VERIFY A T SIGNAL DELAYED +24V THAT
LINE VOL TAGE IS TOO LOW -- THAT MAY
CAUSE ROTOR ERROR OR E18.
+
CHECK WITH THE SCOPE SIGNAL RTRI
AT TP6 HT CONTROLLER. SEE
ILLUSTRATION BELOW .
YES
tprep
t
2.2 V
PREP
0.8
running
CHECK VAC IN TS2 --
CONNECTIONSSTATOR
PRESSING “PREP” IS IT
OK?
CHECK
LINK
FROM TS2
TO TUBE
STATOR
IS IT OK?
CHECK
TUBE STATOR
NO
REPAIR CONNECTIONS
YES
CHECK SIGNAL
+24 DELAYED
IS IT OK?
REPLACE FUSE 6F6
CHECK IF --
START &--ACC
ARE AT LOW LO-
GIC LEVEL WHEN
PRESSING PREP
YES
REPLACE K1 OR
LF--RAC BOARD
REPEAT CONFIGURATION OF
ROTOR ACCELERATION TIME
FOR LOW SPEED
NO