Guide :Radio Communications : MicroTalk PR 4200-2 WX (22 Channels) 2-Way Radio

Radio is switched on vibrates and goes directly to a blank screen

As the subject suggest im having a few problems with my cobra radio and would be extremely grateful for some help, bought these radios a week ago one of them works fine but the other is not. As the radio is switched on it vibrates and goes straght to a lit up screen nothing else appears and nothing else happens, i have replaced the batteries for brand new ones and that has not fixed the problem. Please help Regards Alex G

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Suggested Questions And Answer :

Radio is switched on vibrates and goes directly to a blank screen

Thanks for the help i will have to check them
Read More At : MicroTalk PR 4200-2 WX (22 Channels) 2-Way Radio...

Cobra MicroTalk PR-3550WX - Static after transmission

Dear sir, try to operate ur radio in different channel ,( ur operating area seems to be have so dense radio smog ..if u are located near some border where ur adjacent frequency is in use this cud be the problem . first try in low power channel ( 8-14) ..if it solves ur problem ok ur u try to contact ur seller , & get it replaced if its under warrenty period. Regards raj
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Radio cuts out (screen goes blank) when you press "talk" button

You are correct, the battery is bad. When batteries begin to fail, they may appear to hold a full charge, but when put under a load they fail to maintain the proper power to fully power the radio. Generally you will notice screens going blank, poor or no transmit, etc. Simple solution, replace the battery. New batteries are available for around $30 (US dollars).
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One of our radios is fully charged but every time we try and talk it pauses the screen goes blank & we can't hear on the other radios.

Sounds like liquid damage to me.
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Blank screen until I press menu

I am sorry but i think it is time for a new one.
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Screen goes blank except a thin line

There is a firmware upgrade from Garmin that appears to address this problem for units still running Version 3.2 or earlier. If your problem only occurs when WAAS is enabled, you might try upgrading. To find what firmware version you have, from the main menu: Setup, System, then select the (options) icon on the top row, to the left of the 'X'.
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TH-79A Blank screen. It works with "F-switch on" but then goes blank.

Happened to me too. It takes some disassembling!!!! Between the screen and the underlying circuit board is a rubber strip with conductive material throughout which provides ''ground' for the display. This rubber wears out over time, but the quick fix is to turn it a quarter after cleaning and treating the contact surface with 'contact spray'( sparsely!!). Job requires steady hand and pincers.
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Motorola T6550 pair.

I can see where this feature can seem somewhat inconsistent. But if you think of it like a phone ringing, it is easier to understand. Once you have answered the phone, the phone stops ringing. And the person who called you never experiences a ring on their end. VibraCall® Alert Page 26: VibraCall is a vibrating alert that notifies you that your radio is receiving a message. This is useful in noisy environments. When the alert is on, the radio vibrates once every 30 seconds when you receive a message on the channel and code you set. • To turn vibrating alerts on, press menu until the vibrating radio symbol is displayed, then press the plus (+) button to display the letter Y for Yes. • To turn vibrating alerts off, press menu until the vibrating radio symbol is displayed, then press the minus (-) button until the minus symbol (-) is displayed.
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Screen is blank. no channel listed - Motorola Talkabout FR50 (14 Channels) 2-Way Radio

Battery is dead or not installed properly.
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Wont turn on

Hi i dont know of that model here but if its anything like the ones that were sold here they do have a known problem with the battery packs
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