Faint display on a Seiko Calculator LCD

[Handy]

I've got an old Seiko LCD calculator watch.Everything works fine apart from the display being very faint.
Any ideas?
Cheers,
Ian

[redled]

Probably some dirty contacts somewhere along the chain. If you're confortable, a complete disassembly and cleaning would probably bring it back, although it could probably be an aging LCD.

[Handy]

Hi Redled,
I've stripped the module and cleaned the elastomer, zebra strip, and the contacts all look clean.
I think it my be a problem with the display itself

Thanks anyway.
Cheers,

Ian

[seikoric]

Hi Ian, maybe its a prob with the polarizing filter?

I have a few watches that are faint and that is the problem, i just need to found a source of filters that i can cut to the right shape

Cheers, Ric

[retroleds]

Hi Ian, maybe its a prob with the polarizing filter?

I have a few watches that are faint and that is the problem, i just need to found a source of filters that i can cut to the right shape

Cheers, Ric

Photo shops carry all kinds of polorizing films for putting in front of your lights or in front of your lens. Hope one of these can help.

[Old Tom]

Is it a C153?- the displays on these do tend to be either very crisp or rather faint, seems to be a failure in the display itself rather than the filter (which is very thin and bonded to the face of the display). You can download a full technical repair manual for this watch (and the C359 & C439) from the Seiko Australia service site- the manual has about three/four pages devoted to fault finding the display!

[Handy]

Hi,
It's a C359. The characters look brown rather than black.

[Handy]

Hi Ric,

You are right! I have just put a camera lens polarizer in front of the watch and it does the trick!

Thanks!

Cheers,
ian

[Handy]

OK,
Today I removed the polarizing film from a digital camera LCD.
This film was removed from a colour display and I found that the correct results were obtained with the film at 45 degrees to how it was fitted on the original LCD.
The biggest problem I encountered was removing the film from the original display without damaging it.
Anyway,thanks to all who replied to my original post and especially to Ric for his input.
Cheers,
Ian