Kenwood TH-28E DC problems

Amateur Radio
1

No sound because I have no +/-13VDC.How works the circuit which delivers 13VDC?

2

Do you mean your power supply is faulty or the radio?

3

Dude. Give more details please. We do not speak cryptic.

Google has this to say about your model:

DC Input & External Power

  • External DC Jack: 13.8 V DC nominal (acceptable operational range is 6.0 V to 16.0 V DC).

Battery Pack Voltages

  • Standard operation: 7.2 V DC (using standard packs like the PB-13 or PB-18).

  • High-power operation: 12.0 V DC (using the PB-14 pack to achieve full 5W output).

  • Low-power operation: 4.8 V DC to 6.0 V DC (using the PB-17 pack or BT-8 alkaline case).