Seikowatchman
Member
I'm back after a while away from the radio scanning scene having been rather disappointed with a Radio Shack scanner ( I can't recall the model but it wasn't the easiest piece of kit I've ever used. Then I had an AOR unit which was a vast improvement. After some long drawn out cancer treatment and an interest in building electronic devices for the grandchildren I recently bought a Yupitero MVT7100 from the dreaded Ebay. £45 which at the time seemed a bargain as all it apparently needed was a replacement memory capacitor/battery.
Taking it apart was easy after studying several Youtube videos. I was however surprised to find when measured the voltage across the item was 4.5V. Not too far off the normal 'fully energised' 5V. I replaced it and also re-soldered the speaker and battery connecting wires which had been previously poorly soldered in place by whoever fitted the previous capacitor/battery. It made no difference at all. The scanner receives perfectly but refuses to remember anything. Total amnesia !
I have thoroughly cleaned the keypad contacts and carefully cleaned the keypads themselves. Everything else works except its memory. I even get the 'double beep' to say it's all been entered correctly but I still get 'clear' displayed when I start it up.
Any suggestions as regards anything else I can check before I have to admit defeat and put it in for repair would be hugely appreciated.
Thanks for taking the time to read this,
Chris.
Taking it apart was easy after studying several Youtube videos. I was however surprised to find when measured the voltage across the item was 4.5V. Not too far off the normal 'fully energised' 5V. I replaced it and also re-soldered the speaker and battery connecting wires which had been previously poorly soldered in place by whoever fitted the previous capacitor/battery. It made no difference at all. The scanner receives perfectly but refuses to remember anything. Total amnesia !
I have thoroughly cleaned the keypad contacts and carefully cleaned the keypads themselves. Everything else works except its memory. I even get the 'double beep' to say it's all been entered correctly but I still get 'clear' displayed when I start it up.
Any suggestions as regards anything else I can check before I have to admit defeat and put it in for repair would be hugely appreciated.
Thanks for taking the time to read this,
Chris.