rigonlee
Newbie
Good night, my ats909x manufactured in 2014, China, serial number 1478579, works all functions except the change from am to ssb, and the keys tuning up (up), and squelsh, all other functions and bands work perfectly, I have already restored the factory settings.
I tested with an analogue multimeter these soldered components, from the figure below, but found nothing, solved with soldered and appropriate soldering station, some welds. without success, I have researched in forums, and believe it to be corrupted firmware 24lc32al.
I would like to know if anyone in the group can c.i 24lc32al, already recorded or the file of version 1.29, because I have eprom recorder.
(3) SSB function do not work
AT THE
Check if reception is normal in AM
mode.
Check AM receiving circuit.
YES NORMAL
Check the oscillator frequency of TP1 YES
whether 448KHz in LSB mode or 452KHz
in USB mode.
Check the circuit of Q6, Q7 and Q8.
AT THE
Check the oscillator circuit Q9 and T2.
YES
Check the USB / LSB selector circuit Q10,
Q11 and Q12.
YES
Check the mix loop D9, D10, T2, R1 and
C1.
Yours sincerely. Lindomar Rigon - rigonlee@hotmail.com
I tested with an analogue multimeter these soldered components, from the figure below, but found nothing, solved with soldered and appropriate soldering station, some welds. without success, I have researched in forums, and believe it to be corrupted firmware 24lc32al.
I would like to know if anyone in the group can c.i 24lc32al, already recorded or the file of version 1.29, because I have eprom recorder.
(3) SSB function do not work
AT THE
Check if reception is normal in AM
mode.
Check AM receiving circuit.
YES NORMAL
Check the oscillator frequency of TP1 YES
whether 448KHz in LSB mode or 452KHz
in USB mode.
Check the circuit of Q6, Q7 and Q8.
AT THE
Check the oscillator circuit Q9 and T2.
YES
Check the USB / LSB selector circuit Q10,
Q11 and Q12.
YES
Check the mix loop D9, D10, T2, R1 and
C1.
Yours sincerely. Lindomar Rigon - rigonlee@hotmail.com
