All Forums  GQ Electronics Forums  2.GQ Geiger Muller Counter  GMC-320+ boot looping

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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by masto[/i] [br]I have a GMC-320+ V5 that has been hanging on a peg in my basement displaying counts for the past two years. I noticed tonight that it was continuously displaying the startup logo and rebooting. I tried disconnecting power for a while, but it appears to have gone bye-bye. When I plug in USB power, it goes into this boot loop and also makes a squealing sound from the speaker. With the battery installed, it also boot loops (minus the speaker sound). I presume these are not the symptoms of simply needing a tube replacement. Is there anything worth trying to diagnose or have I gotten all I'm getting out of it? I saw the sticky about measuring voltage, and with a standard multimeter I'm reading 160V on the tube ends when it's plugged in. There are no obvious blown components anywhere. I do have a fairly extensive electronics workbench, so I can perform tests and repairs, I just don't know where to start. Or if it's worth it given the price of a brand new 500+. [/quote]    Insert an Image File Check here to include your profile signature.