Question about Two-Way Radios
Display screen flashes rapidly and no audio or TX. Any ideas please?
You posted your concern as generic with no specific brand or model. Flashing displays can mean a variety of things to different makes. Some of which are:
1. Low battery. Low memory battery;
2. Error in programming;
3. Error in firmware;
4. Fatal error in self-test/diagnosis;
5. Major component defect detected; and/or
6. Out of range/band.
In the same token, corrective measures can likewise be anything:
a. Recharge/replace battery;
b. Reprogram/reload program;
c. Update firmware/clone;
d. Run diagnostics using an external device (often a PC);
e. Determine which is at fault (finals, VCO, PLL, voltage regulator, replace);
f. Tune back to standard freq.
Most often (but not always), it can be also be corrected by doing a reset of the radio which can be:
i. Pressing FUNC (or some other button) while powering up;
ii. Pressing a recessed/hidden reset button;
iii. Placing a temporary jumper/shorting two (2) points (internally on the logic board);
iv. Remove battery/power (including internal if any);
v. Pressing a sequence of buttons to enter MENU/SETUP mode.
Hope that this be of some help/idea. Pls post back how things turned up or should you need additional information. Would appreciate also if you can specify brand/model/region.
Good luck and kind regards.
Posted on Jan 18, 2008
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