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TH-235A


 

Hello everyone,

Does anyone know of someone that might have the ability to repair an old Kenwood TH-235A ht. The rig has output but not enough to measure on a 5 watt meter into a dummy load. Changing between low and high power seems to make no difference at all. I can talk simplex to another radio out to a couple hundred feet or so as well as bring up the local repeater within a few hundred feet. I know I can replace it with a cheap hand held but this radio has been a work horse at field days and other occasions for years and never had a problem. Another reason for repair interest is I bought a new battery for it just before the problem developed. The luck of life. Thanks ahead for any help.

Jeff
kb5nmb


 

Hello. I do not know this specific model, but have you tried it with an external 12V DC power supply? Perhaps it is the new battery? Maybe not making good contact? Just wondering.

Wishing you the best.
73,
Francis WA4ZYN

On Aug 22, 2024, at 5:00 PM, Jeff KB5NMB via groups.io <kb5nmb@...> wrote:

Kenwood TH-235A


 

Yes I have tried it on a power supply, thanks.

Jeff
kb5nmb

On Aug 22, 2024, at 5:08?PM, Francis via groups.io <franciswhite@...> wrote:

?Hello. I do not know this specific model, but have you tried it with an external 12V DC power supply? Perhaps it is the new battery? Maybe not making good contact? Just wondering.

Wishing you the best.
73,
Francis WA4ZYN
On Aug 22, 2024, at 5:00 PM, Jeff KB5NMB via groups.io <kb5nmb@...> wrote:

Kenwood TH-235A





 

Maybe the Hi/Lo power switch is stuck at Lo.? Contacts might be dirty.? Here is service manual for it.? Maybe that will help you.? Good Luck. Greg


 

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Will give it a look and a shot of deoxit. Thanks for the manual Greg.

Jeff
kb5nmb?

On Aug 23, 2024, at 6:39?AM, Greg via groups.io <WA6KNO@...> wrote:

?
Maybe the Hi/Lo power switch is stuck at Lo.? Contacts might be dirty.? Here is service manual for it.? Maybe that will help you.? Good Luck. Greg
<TH235A_SM_KENWOOD_EN.pdf>