Questions about 645 functions

62sunbeam · 05-29-2011, 05:59 AM

I didn't post this in trouble shooting as I didn't know if this new to me 645 is acting normally or not. Please let me know if I need to post elsewhere.

Anyway this is what is going on:

I realize some of the functions of the camera don't work until there is a roll of film in the camera but I don't think this is the problem.

1. No meter in the viewfinder.

2. Pushing the LED button nothing happens.

3. If I push the LED illumination button the LCD to the right of the viewfinder goes blank and doesn't come back until I remove and replace the batteries. turning the camera off then on has no effect.

Is there a way to "trick the camera into thinking it has a roll of film in it?

Thanks in advance for your help.

Eric

veraikon · 05-29-2011, 07:26 AM

The back (film or blind) has to be on the camera.

62sunbeam · 05-29-2011, 07:36 AM

I have the back on but no film in the camera.

The manual says I should be able to actuate the shutter with the back off.

Is this not the case?

I've tried it but nothing happens.

Thanks

Eric

veraikon · 05-29-2011, 10:01 AM

ok you are right. May be the notice in the manual I remember is writen to protect the shutter. I just tried it (645N) + Pentax lens + back [without film] and without back. You can fire, and shutter speed, f stop and focus indicator is in display.

62sunbeam · 05-29-2011, 10:18 AM

The fact that pushing the LCD illuminate button causes my LCD to go away and no LED in the viewfinder make me think there is some sort of electronic fault.

Any way to get to the bottom of this?

Thanks

Eric

veraikon · 05-29-2011, 10:59 AM

do you use _new_ batteries ?

62sunbeam · 05-29-2011, 11:59 AM

Originally posted by veraikon

do you use _new_ batteries ?

They all test out at 1.53 or more volts. What should the battery pack output total?

Thanks

Eric

62sunbeam · 05-29-2011, 12:13 PM

I swapped out the ones in the pack and low and behold it made the LED work and the LCD button no longer kills the LCD screen.

but the light meter doesn't seem to work.

I will go over the manual once again and figure it all out.

Thanks

Eric

62sunbeam · 05-29-2011, 02:02 PM

By the way. What are the symptoms of a dead memory battery. ( the one that goes under the screw on cover in the bottom of the camera)?

Thanks

Eric

Smolk · 05-29-2011, 06:29 PM

I have a fully functioning 645N with the "check back" (not the insert but the fake back) and it does show diafragma and shutter (645 A 2.8/75mm).

05-29-2011, 05:59 AM	#1
62sunbeam Inactive Account Join Date: May 2011 Location: Burbank CA Posts: 9	Questions about 645 functions I didn't post this in trouble shooting as I didn't know if this new to me 645 is acting normally or not. Please let me know if I need to post elsewhere. Anyway this is what is going on: I realize some of the functions of the camera don't work until there is a roll of film in the camera but I don't think this is the problem. 1. No meter in the viewfinder. 2. Pushing the LED button nothing happens. 3. If I push the LED illumination button the LCD to the right of the viewfinder goes blank and doesn't come back until I remove and replace the batteries. turning the camera off then on has no effect. Is there a way to "trick the camera into thinking it has a roll of film in it? Thanks in advance for your help. Eric

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
PDCU 4.31 - New functions ...	hcc	Digital Processing, Software, and Printing	16	07-16-2011 08:42 PM
I would love to have these functions in my k-5	006	Pentax K-5 & K-5 II	8	03-02-2011 03:49 PM
K-X Functions Questions	kacansas03	Pentax DSLR Discussion	13	02-16-2011 01:49 PM
645 lens to k mount questions	blackcloudbrew	Pentax SLR Lens Discussion	4	10-25-2010 12:26 PM
Your custom functions (K-7)	Photong	Pentax DSLR Discussion	4	07-08-2009 01:53 PM

05-29-2011, 07:26 AM	#2
veraikon Senior Member Join Date: Mar 2010 Location: Inside the Blue Banana ;) Posts: 255	The back (film or blind) has to be on the camera.

05-29-2011, 07:36 AM	#3
62sunbeam Inactive Account Join Date: May 2011 Location: Burbank CA Posts: 9 Original Poster	I have the back on but no film in the camera. The manual says I should be able to actuate the shutter with the back off. Is this not the case? I've tried it but nothing happens. Thanks Eric

05-29-2011, 10:01 AM	#4
veraikon Senior Member Join Date: Mar 2010 Location: Inside the Blue Banana ;) Posts: 255	ok you are right. May be the notice in the manual I remember is writen to protect the shutter. I just tried it (645N) + Pentax lens + back [without film] and without back. You can fire, and shutter speed, f stop and focus indicator is in display.

05-29-2011, 10:18 AM	#5
62sunbeam Inactive Account Join Date: May 2011 Location: Burbank CA Posts: 9 Original Poster	The fact that pushing the LCD illuminate button causes my LCD to go away and no LED in the viewfinder make me think there is some sort of electronic fault. Any way to get to the bottom of this? Thanks Eric

05-29-2011, 10:59 AM	#6
veraikon Senior Member Join Date: Mar 2010 Location: Inside the Blue Banana ;) Posts: 255	do you use _new_ batteries ?

05-29-2011, 11:59 AM	#7
62sunbeam Inactive Account Join Date: May 2011 Location: Burbank CA Posts: 9 Original Poster	Originally posted by veraikon do you use _new_ batteries ? They all test out at 1.53 or more volts. What should the battery pack output total? Thanks Eric

05-29-2011, 12:13 PM	#8
62sunbeam Inactive Account Join Date: May 2011 Location: Burbank CA Posts: 9 Original Poster	I swapped out the ones in the pack and low and behold it made the LED work and the LCD button no longer kills the LCD screen. but the light meter doesn't seem to work. I will go over the manual once again and figure it all out. Thanks Eric

05-29-2011, 02:02 PM	#9
62sunbeam Inactive Account Join Date: May 2011 Location: Burbank CA Posts: 9 Original Poster	By the way. What are the symptoms of a dead memory battery. ( the one that goes under the screw on cover in the bottom of the camera)? Thanks Eric

05-29-2011, 06:29 PM	#10
Smolk Pentaxian Join Date: Feb 2010 Location: Eerbeek Photos: Gallery \| Albums Posts: 1,857	I have a fully functioning 645N with the "check back" (not the insert but the fake back) and it does show diafragma and shutter (645 A 2.8/75mm).

Thread Tools	Search this Thread
	Search this Thread: Advanced Search