Maintenance

Operating Your Radio

Maintenance

Very little maintenance is required to keep your CobraMarineVHF radio in good operating condition.

Keep the radio and charger clean by wiping with a soft cloth and mild detergent. Do not use solvents or harsh or abrasive cleaners, which could damage the case or scratch the LCD screen.

If the radio is exposed to salt water, wipe with a soft, moist cloth at least once a day to prevent build-up of salt deposits, which could interfere with button operation.

If the radio will be stored for a long period, such as over the winter, remove the batteries from the battery compartment and store them in a separate package. This is especially so if you are using alkaline batteries.

34 English

Troubleshooting

Operating Your Radio

Troubleshooting

 

Problem

Possible Cause(s)

Solution(s)

 

 

No display on LCD

Batteries are exhausted

Replace or recharge batteries

 

when radio is turned

Batteries not installed

Remove batteries and

 

On

 

properly

reinstall according to

 

 

 

 

 

polarity markings

 

 

 

 

 

 

NiMH batteries run

Batteries are at the

Replace with new batteries

 

down quickly

end of their life

 

 

 

 

 

 

 

 

Will transmit at

Batteries are low

Replace or recharge

 

12 watt, but not at

Selected channel is

batteries

 

2 watts

Switch to another channel

 

limited to 1 watt

 

 

 

 

 

 

 

 

Will not transmit

Selected channel is

Switch to

 

 

limited to receive only

another channel

 

 

 

 

 

 

No sound from speaker

Volume level is too low

Re-adjust volume

 

 

 

 

 

 

No response to

Button Lock is On

Press and hold High/Low

 

button press

 

Power-Lock button

 

 

 

 

 

 

No answer to calls

Out of range of

Switch to 2 watts

 

 

other station

or move closer

 

 

Signal is blocked

Move until you have

 

 

by terrain

a “line-of-sight” to

 

 

 

the other station

 

 

 

 

 

Nothing comes close to a Cobra® 35

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Cobra Electronics MR HH100 VP EU owner manual Maintenance, Troubleshooting, Problem Possible Causes Solutions