Cobra Electronics MR HH400 EU Maintenance Troubleshooting, Problem Possible Causes Solutions

Models: MR HH400 EU

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400-BR-F 6/23/04 2:12 PM Page 42

Operating Your Radio

Memory Button

Scan Button

Memory Scan Mode

Talk or Channel Up/Down

ab

Advanced Operation

To enter memory location scan:

1.From Standby mode, press the Memory button.

2.Press the Scan button.

The radio will immediately begin to scan the channels you programmed into the memory. The Scan and Memory icons will show on the LCD.

To exit memory location scan:

1.From Memory Location Scan mode, press the Scan button. This will return the radio to Memory mode on the last scanned memory location.

2.Press the Memory button to return to Standby mode on the last channel shown before entering memory scan.

During memory location scan (while receiving an incoming transmission), you can choose from the following:

a. Press the Talk button to remain on that memory location and end scanning. This will return the radio to Standby mode.

b. Press the Channel Up or Channel Down button to resume scanning memory locations.

If you do not press any buttons within ten seconds, your radio will automatically resume scanning memory locations.

During memory location scan (while not receiving a transmission), you can choose from the following:

a. Press the Talk button to communicate on the last memory location scanned and return to Standby mode.

b. Press the Channel Up or Channel Down button to change scan direction.

Maintenance and

Troubleshooting

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 tray and store them in a separate package. This is especially so if you are using alkaline batteries.

Troubleshooting

 

 

 

 

 

 

 

 

 

Problem

 

Possible Cause(s)

 

Solution(s)

 

 

 

 

 

 

No display on LCD when

 

Batteries are exhausted

Recharge or replace batteries

radio is turned On

 

Batteries not installed

Remove batteries and reinstall

 

 

 

 

properly

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

Recharge or replace batteries

1 watt, but not

 

Selected channel is

Switch to another channel

at 5 watts

 

 

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 or

Re-adjust volume

 

 

squelch level is too deep

and squelch

 

 

 

 

 

 

No response to

 

Key lock is On

Press Backlight/

button press

 

 

Key Lock button

 

 

 

 

 

 

No answer to calls

 

Out of range of

Switch to 5 watts or

 

 

other station

move closer

 

 

Signal is blocked

Move until you have a “line-of-

 

 

by terrain

sight” to the other station

 

 

 

 

 

 

 

 

 

 

42 English

Nothing comes close to a Cobra® 43

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Cobra Electronics MR HH400 EU owner manual Maintenance Troubleshooting, Problem Possible Causes Solutions