Welcome to the FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
The latest SmartSDR Software:
SmartSDR v4.2.18 | SmartSDR v4.2.18 Release Notes
SmartSDR v3.10.15 | SmartSDR v3.10.15 Release Notes

The latest 4O3A Genius Product Software:
The latest 4O3A Genius Product Software and Firmware
How to Receive Technical Support::
If you are needing assistance with FlexRadio products, please refer to the product documentation or check the Help Center for known solutions. Need technical support from FlexRadio? It's as simple as creating a HelpDesk ticket.

Flex1500 USB failure due to 3,3V regulator

on7wp
on7wp Member ✭✭
in FLEX Series (Legacy) Radios
My Flex1500 no longer talks to the PC. The blue light turns on.

I found out the 3,3V regulator powering the USB circuitry is dead. I took out the regulator and still measure a short circuit on the output, so my best guess is a shorted Tantalum cap.

However the Flex1500 service manual shows a different design as my board. My regulator has a diode in serie with the input not present on the published service manual.

Difficult faultfinding like this...

Is there anybody who has a more recent service manual or can me give tips to what component might cause the short ?

Pedro AA9HX-ON7WP-C5WP
pedro.wyns@gmail.com

Comments

  • Trucker
    Trucker Member ✭✭✭✭

    You might try contacting Troy Radio in Troy, Texas. ( they have a website) They may be able to help you. They are the Flex Radio authorized service center for Flex Radio's legacy radios.

    James

    WD5GWY

  • Erik Carling EI4KF
    Erik Carling EI4KF Member ✭✭✭✭

    Or even the Flex Radio repair centre for EU owners in Germany.

    frs-service-eu@t-online.de to ask Norbert Wrede about the issue.

  • on7wp
    on7wp Member ✭✭
    I don't need service, can do that myself with the right docs.
  • Erik Carling EI4KF
    Erik Carling EI4KF Member ✭✭✭✭

    Yes but he might have them and could provide the info you need. He repairs them after all. This is also what James was saying but I thought the EU engineer would be more convenient to ask. It's just an email but up to you of course.

Leave a Comment

Rich Text Editor. To edit a paragraph's style, hit tab to get to the paragraph menu. From there you will be able to pick one style. Nothing defaults to paragraph. An inline formatting menu will show up when you select text. Hit tab to get into that menu. Some elements, such as rich link embeds, images, loading indicators, and error messages may get inserted into the editor. You may navigate to these using the arrow keys inside of the editor and delete them with the delete or backspace key.

Comment As ...

Categories