[Kenwood] TM-V7A Power On Problem

[Clif Holland]

Clif's Notes:

Check internal fuses
Pin 60 of uPc should be 5 v if low then;
In Control unit C523 leaked and damaged Reset line under it.

Clif Holland KA5IPF

On 9/22/2019 5:20 PM, John via Kenwood wrote:
> Mine just recently decided to not turn on at all .?? I checked what 
> fuses I could find, so I will be "listening in" to see what 
> suggestions are offered up here.
>
>
> John
>
> N7JL
>
>
> On 9/22/19 8:48 AM, Rick Markey, KN3C wrote:
>> Over the years, I have amassed three "blue eyed monsters" aka the 
>> Kenwood TM-V7A.?? Two have lines in the display, but one is still 
>> perfect! I was housecleaning and decided to power them up and 
>> reprogram them using the RT Systems software.
>>
>> One of the three radios will only power on intermittently.?? When you 
>> can get it to power on, you can then power it off, on, off, on, 
>> seemingly forever.?? If you leave it turned on, it will eventually 
>> turn itself off.?? It's not the control head, I've swapped them 
>> around.?? I've done factory resets on it and that has no effect, 
>> although the reset does work if you catch the radio in the right mood.
>>
>> I have not opened up the radio for a look around.?? Just curious if 
>> anyone else has seen this and has a suggestion?
>>
>> Thanks,
>> Rick, KN3C
>>
>>
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