Section 7. Troubleshooting - Kenwood TS-530SP Instruction Manual

SECTION 7. TROUBLESHOOTING
6.1 GENERAL
TRANSMITTER SECTION
SYMPTOMS
CAUSE
REMEDY
No output
(No plate current)
No voltage on the screen grid
of the final tubes
Turn the SG switch on
the rear panel ON.
On output in SSB
(No plate current)
. Open microphone cable or
bad microphone.
. Low microphone gain.
. Check the microphone.
. Increase the MIC control.
There is output, but the RF
meter shows no output.
RF METER control not
adjusted correctly.
Adjust control for 2/3 scale
reading at full output.
VOX does not operate.
. VOX GAIN control too low.
. ANTI VOX control requires
adjustment.
. See section 4.4
. See section 4.4
VOX trips by speaker output.
ANTI VOX control requires
adjustment.
See section 4.4
XIT control inoperative XIT switch is off.
Push XIT switch.
Mic or radio chassis is "hot"
during TX
Excess RF in the shack. No earth
ground, poor ground, or antenna
is too close to the radio.
See section 2
Poor audio in SSB, TX-feedback
Excess RF in the shack.
See section 2
RF METER reading varies by band.
RECEIVER SECTION
SYMPTOM
SWR differences between bands.
CAUSE
Retune antenna system.
REMEDY
Pilot lights do not light and
there is no receiver noise when
the POWER switch is turned on.
. Bad power cable or connections.
. Blown power supply fuse.
. Check cables and connections.
. Check for the cause of the blown
fuse and replace the fuse.
An antenna is connected but
no signals are heard.
Microphone PTT switch (or
stand-by switch) is in the
transmit position.
Release the PTT switch.
An antenna is connected but S-meter
deflects without a received signal.
. RF GAIN control closed.
. Lsow AC line voltage.
. Open RF GAIN control.
. Use a step-up transformer to
raise the line voltage.
SSB signal unintelligible
MODE switch is set to wrong
sideband.
Turn MODE switch to the correct
sideband.
RIT control inoperative. RIT switch is off.
Push RIT button.
SSB received signal is extremely
high cut or low cut.
28
IF shift is out of adjustment.
Set to the center (click) position.