Troubleshooting - Kenwood TH-28A Instruction Manual

The following problems are generally caused by
improper transceiver operation or connection, not by
defective components.
Symptom
TROUBLESHOOTING
Probable Cause
Corrective Action
Indicators do not light and no
receiver noise is heard when the
POWER switch is turned on.
1. Low voltage.
2. With optional DC cable:
1) Bad power cable or
connections.
2) Blown power supply fuse.
1. Recharge/ replace the battery.
2:
1) Check cables and connections.
2) Check for the cause of the
blown fuse and replace the fuse.
No sound from the speaker.
No signal can be received.
=
. Squelch is closed.
2. With the TSU-7: CTCSS is
operating.
3. DTSS is operating.
4. Paging is operating.
=
. Turn the SQL control
counterclockwise.
Press the F key, then press the 3
key to turn off the CTCSS.
Press the F key, then press the 2
key to turn off the CTCSS.
4. Press the F key, then press the 1
key to turn off the Paging.
o
No control works.
1. LOCK is ON.
2. T.ALT is ON.
1. Slide the LOCK key to OFF
position.
2. Press the F key then the O/T.ALT
Memory channel cannot be
recalled.
Nothing is stored in the memory
channel.
See Using the Memory (page 17)
Memory cannot be backed up.
1. Battery voltage is low.
2. Battery case removed.
1. Recharge the battery.
2. Install the Battery case.
53