User's Manual

-25 -
POWER OPER.
METER
Pr
V
DALC
OFF STBY
BAND
AUTO
MAN’L
O
N AIR
FAN
ID
PROT
Pf/kW
HF SOLID STATE LINEAR AMPLIFIER HL-
2
500FX
MAN’L
1.8
3.5
7
10
14
18/21
2
4/28
50
Pr/VD/ID/A
LC
OUTPUT
HI
LO
ANT
A
B
I
D
１１-B Fault Protection
1.8MHz AUT-CIV ANT-A
PROT OVER TEMP
Prot. LCD Sign Description Remedy
Over Heat FAULT OVER TEMP Heat sink temp reached
９５℃
Cool off to reset
Fan Faulty FAULT FAN FAIL FAN faulty or speed too low Repair at factory
AC Line High FAULT OVER LINE VOLT AC line exceeded 250V Check AC line
AC Line Low FAULT UNDER LINE VOLT AC line fell to 85V or lower Check AC line
Fuse Blown FAULT FUSE BLOW Internal fuse blown Refer to Pxxx
Main P.S.
Faulty
FAULT DC SUPPLY OUT Output of main DC P.S. (Vdd) faulty Repair at factory
Main P.S.
Faulty
FAULT DC SUPPLY Primary side of main DC P.S. faulty Repair at factory
FAULT PROTECTION
Sign Status
PROT lamp glows.
Message is displayed
Main DC P. Supply Shut Down
AC Magnet Relay Shut Down
RF Path Thru
Fan Control ON
Reset
Set OPER/STBY switch to STAND-BY
position, and turn POWER switch off and
on.
List of Fault Protection
Fault Protection is built in to avoid the damage to the amp due to the severe cause of fault within the
amplifier or on the AC power line.
Protection Sign