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11. Trouble Shooting
Failure
AC mains not
① AC fuses blown
operating
② AC cord not plugged in
③ Interlock switch lifting
④ Wrong tap used on
Can't enter
① Remote control cable
Transmit
mode
② Protection circuits ON
O.Drive lights
① RF overdrive
② Band miss-set
③ O.Current works (High
PR lights
① Reflected power high,
② Poor connection to coax
O. Volt lights
① Drain voltage of power
FUSE lights
① Fuse blown
② Antenna SWR high
③ Short circuit
O.Heat lights
① Internal Temperature
Vd appears
① 1A fuse of PA unit is
normal, but no
power
① O. Current protection
Vd is 0V
Possible Cause
power transformer
primary
not connected
Id when using AC100V)
Antenna SWR high
cables
amp extremely high
above 80 deg.C
blown
circuit of power supply
unit has worked.
① Replace with new ones.
② Plug in securely.
③ Screw bolts tightly on the top cover.
④ Correct primary wiring.
① Check the cable and connect properly.
② Check the drive power, antenna SWR.
Reset with AC POWER switch.
① Decrease drive.
② Select the BAND correctly.
③ Same as ①. Wait for more than 5
minutes, and turn power ON.
① Check/adjust antenna
(Or decrease drive.).
② Check the coax cable connectors.
① Check AC line stability.
① Replace F202 and F203 (15A) on the
PA board (PC1662V).
② Adjust the antenna.
③ Contact the distributor, or service
center.
① Cool off until LED turns off. Check for
air intake blockages. Also check air vent
on top cover.
① Replace 1A mini fuse (F203). Confirm
input power.
① Turn off power, and wait for 5 minutes
before turning it on again.
17
Solution
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