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Bettersense
Tinkerer
Username: Bettersense
Post Number: 4
Registered: 08-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, July 01, 2009 - 05:52 pm: | 
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I just bought a F4s in apparently mint condition. It's still in the box and has not so much as a fingerprint on it, but it suffers from a problem where the viewfinder indicators work only intermittently. This includes both the LCD displays and the green LED backlight.
You can get them to come on and stay on if you press down hard on top of the prism. With the prism off, you can see how the little info screens shine up into the prism when the prism is on, and they have the same kind of intermittent failure to work when the finder is off. When you press the shutter button down halfway, if the lights fail to come on, you can almost always get them to come on by pressing against the back of the camera near where the finder slides on. You can even get them to blink on and off sometimes by pressing here on and off. So it must be flexing something and making intermittent contact inside somewhere, perhaps under the bus bar that has all the finder contacts on it.
Has anyone had this problem or known of it before? Is there a simple fix by any chance? How can I go about getting the camera repaired? Does Nikon still work on these? Do I want to know how much it's going to cost? |
Fiftyfifty
Tinkerer
Username: Fiftyfifty
Post Number: 39
Registered: 07-2006
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, July 02, 2009 - 01:01 am: |
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I would start with cleaning the contacts on the body,remove the prism and the screen and clean the contact with a bit of naptha ( lighter fluid ).
If that does not fix it, see if you can find someone with another prism that you can try, it may be the prism not the body. |
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