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SS9900 DC LOW? Icon_minitimeToday at 9:55 pm by 13oots2

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 SS9900 DC LOW?

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del6600
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New Member



Call Sign : 26-CT-2711
Posts : 4
Times Thanked : 0
Join date : 2019-06-28
QTH or Location : Herefordshire
Equipment Used : Yaesu FT891-EFHW80-10 ant & Gainmaster 10/11/12mt 5/8 HF Ant- DG503 3.5'' Digital SWR/WATT Meter-QRM Eliminator + Yaesu FTM400XD Tx/Rx-Diamond FX510N VHF/UHF Ant

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PostSubject: SS9900 DC LOW?   SS9900 DC LOW? Icon_minitimeSun Aug 11, 2019 8:28 pm

Hi,
I have a SS9900 radio.
When I switch on and call out all I am getting is "DC LOW"
I have tested the 13.8v 20A psu, that's ok.
To confirm this I took the radio out to my car and plugged it in
with the same result. I re-flashed the radio with the original
software it came with 16 months ago. Same problem?

Anyone any ideas what the problem is?

Hopeful

del
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Sgt Bilko
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Sgt Bilko


Call Sign : 108 ct 302 - mm0ibe
Posts : 261
Times Thanked : 18
Join date : 2019-07-20
QTH or Location : Prestonpans. East Lothian
Equipment Used : SS9900
Age : 54

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PostSubject: Re: SS9900 DC LOW?   SS9900 DC LOW? Icon_minitimeSun Aug 11, 2019 10:49 pm

Try the programming software. I think you can set an upper and lower voltage.

Paul
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del6600
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Call Sign : 26-CT-2711
Posts : 4
Times Thanked : 0
Join date : 2019-06-28
QTH or Location : Herefordshire
Equipment Used : Yaesu FT891-EFHW80-10 ant & Gainmaster 10/11/12mt 5/8 HF Ant- DG503 3.5'' Digital SWR/WATT Meter-QRM Eliminator + Yaesu FTM400XD Tx/Rx-Diamond FX510N VHF/UHF Ant

SS9900 DC LOW? Empty
PostSubject: Re: SS9900 DC LOW?   SS9900 DC LOW? Icon_minitimeMon Aug 12, 2019 8:55 am

Sgt Bilko wrote:
Try the programming software. I think you can set an upper and lower voltage.

Paul

Thanks for the reply, have tried that = 14v > 11v?

I have just adjusted the voltage settings now 14v > 9v

When I key the mic now all I get is a black screen, when I release the key I get a beep.

Beeps and roger beeps have been turned off.

I am beginning to wonder if the TIP36C PNP Power Transistor or the 4 13N10 finals have gone? Suspect

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