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VX2500E programming issue

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May 10, 2017
Hello all,
I have a programming issue with a VX 2500E
I use the CE63 Ver 2.00 software with a homemade cable with max232 and lm7805.
1) radio ON
2) upload ( read dconfig from radio)
3) start ( a message from program say power of/on the radio )
4) power radio OFF
5) power radio ON

the config read don't start

I checked the cable
TX/RX to pin 8 with a 120 K hom resistor to +5V
GND to pin 5
VIN from pin 6 that give 9 Volt then regulated to 5 Volt with lm78m05
5V to pin 2 with a 3.3 K hom resistor
If I open the serial port with a teminal program I car read the keys that I type, the tx is connected to rx, and the signal arrive to pin 8 of the mic

When I power on the radio with channel up pressed I can read
053 1101
on the display.
Can somehone help me?

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