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VX-7200 Boot Looping With Programming Cable Attached

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fd7116

Newbie
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Jun 26, 2023
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Sainte Genevieve, MO
Evening all,

Long time listener, first time caller - I have a Vertex VX-7200 with CT-104 USB cable that when attached to computer for programming, causes the radio to endlessly boot loop. Unplugging the cable stops the looping and allows the radio to turn on. I, otherwise, have no trouble with radio. I am not certain where to begin with troubleshooting such an issue.

Advise?

Thanks
 
R

radiotweester

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Dec 21, 2006
Messages
482
Location
Oregon
Not a solution, but I'm trying to figure out.
These were some of the last that were Vertex and not Motorola like with programming.
Radio is off when the programming cable is plugged into the radio?
You are plugging into the computer USB with the radio still off? Then it causes the power up boot cycle?
CE76 configured for USB and mobile?
 
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N

nhfirefighter

Member
Joined
Jun 2, 2007
Messages
59
Been a long time since I worked on one of these but I recall this issue. I believe you have to turn the radio on with the mic plugged in. Once it’s booted up unplug mic and plug in the programming cable. Then read or write the radio.
 
F

fd7116

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Jun 26, 2023
Messages
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Location
Sainte Genevieve, MO
radiotweester said:
Not a solution, but I'm trying to figure out.
These were some of the last that were Vertex and not Motorola like with programming.
Radio is off when the programming cable is plugged into the radio?
You are plugging into the computer USB with the radio still off? Then it causes the power up boot cycle?
CE76 configured for USB and mobile?
Click to expand...
If the radio is off when the cable is plugged in, then the radio will not turn on at all. If the radio is on, it will go into it's loop. CE76 is configured, yes, but it doesn't even get far enough to make a communication attempt.

nhfirefighter said:
Been a long time since I worked on one of these but I recall this issue. I believe you have to turn the radio on with the mic plugged in. Once it’s booted up unplug mic and plug in the programming cable. Then read or write the radio.
Click to expand...
I tried this, as noted, to no avail.
 
F

fd7116

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Jun 26, 2023
Messages
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Location
Sainte Genevieve, MO
buddrousa said:
Where did you get the PROGRAMMING CABLE?
Is it a FACTORY CABLE or EBAY HOMEMADE CABLE?
Click to expand...
I got the PROGRAMMING CABLE from eBay. But I don't know if it would be classified as a EBAY HOMEMADE CABLE since it came from a reputable dealer. I have actually reached out to the dealer to inquire as to what could be going on as well.
 
n3obl

n3obl

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Some of the aftermarket cables exhibited this symptom . The oem cable does not have this problem.
 
R

radiotweester

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Joined
Dec 21, 2006
Messages
482
Location
Oregon
With those symptoms I would agree regarding the cable. Most likely the adapter chip in it. Someone please chime in, I think it's called prolific vs non? I wish I could help, but I still use the serial DB9 *(and a serial to USB adapter when I have to). I don't know about the mic then programming cable reply, but it seems quite possible? To get the software to recognize the extra buttons on the MH-64 mic you had to do this.
I'm guessing it's the USB dongle, but with the RJ-45 tail plugged in and the usb disconnected will it turn on and off? Just want to make sure nothing is wonky in the pigtail/adapter. If not verify with the RJ-45 tab down gold pins up and at the top verify you have wires going to pin 1 the left most (data) and pin 4 the 4th from the left (ground).
 
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