Anyone ever repaired a Navman VHF?

[ProDave]

Navman VHF 7100 EU

The fault is all segments of the LCD display are on, so you can't tell what channel you are on etc.

The radio is working, transmitting and receiving, just "blind"

I have fallen over at the first hurdle. I can't get the case open. I have removed the only 6 visible screws at the back and at this point I would expect the plastic casing to withdraw backwards over the heatsink. but it won't budge.

Any ideas before I push pull or squeeze the wrong but and break it so it won't go back together?

 

[pvb]

Sorry, but it's probably not economically viable to repair the radio. It's ages old, was discontinued over 10 years ago then re-marketed as the Northstar Explorer 710, then that was discontinued. Maybe worth a call to Simrad to ask if parts are available and whether they'd repair it.

 

[snowbird30ds]

I had one of those years ago and it was very unreliable, I got used to harbours that wouldn't reply and locks that ignored calls till I realised my old shoreline set got it all no problem, once faith in a vhf has gone chuck it away as you'll never have confidence in it again, mine had already had a new dsc chip fitted by the manufacturer.
Get a decent non budget one and have confidence when you need help you will be heard, icom or standard horizon everytime for me now.

 

[William_H]

Just as a wild suggestion this effect is often built in for test of readout segments. It might just be worth going though the documentation to make sure it is not a test option that has been selected. Failing that have a new one. Unless the fault is known to those with experience with this radio it would be difficult to track down and repair the fault. ol'will

 

[ProDave]

Well I have got it open.

I was just looking in the vain hope it was something simple and fixable but now believe it is the chip that drives the LCD display that has failed and is not repairable.

I am not impressed with the construction, not what I would call a quality set, nothing like the likes of Icom etc.

 

[MikeCC]

Is there a ribbon cable from board to LCD? Unclamp the ends and wipe with contact cleaner or IPA (neat alcohol not beer).

 

[Momac]

Reminds me of my late mother in law whi insisted on having a washing machine repaired at great expense only for it to fail a year later.
However the failure of the washing machine wasn't life threatening.

 

[mlines]

This guy does economic repairs via post...

https://mm1apc.wixsite.com/m1apc?fb...at9Z5YP93UbpLhswmASEJzdl1JmpM5vI5tBdNOZdBG88k

 

[Jimmann]

Navman VHF 7100 EU

The fault is all segments of the LCD display are on, so you can't tell what channel you are on etc.

The radio is working, transmitting and receiving, just "blind"

I have fallen over at the first hurdle. I can't get the case open. I have removed the only 6 visible screws at the back and at this point I would expect the plastic casing to withdraw backwards over the heatsink. but it won't budge.

Any ideas before I push pull or squeeze the wrong but and break it so it won't go back together?

I have one with the exact same issue, did you manage to solve the problem?