Lumix TZ7 compact lense swap.

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Lumix TZ7 compact lense swap.

Postby BTJustice » Sat Sep 15, 2012 10:09 pm

I thought this might interest a few folk here, its kind of a stage on from the job I did in this thread last year;

viewtopic.php?f=29&t=11336

Befor we start its the disclaimer and *WARNING* Do not carry out this repair unless you are really confident about opening your camera up.

Allow for the possibility of the repair not working and your camera being scrap. If you cant handle this possibility leave it alone and take it to a professional.

The reason I decided to carry out this repair was down to the effects seen in part 1 of this set.

A lot of online "experts" will argue that dust on the lense will not effect picture quality but I was finding that the dust in the lense was a problem.

I had opened the camera a few times to clean the sensor as this is a common fault but dust on the sensor in my experience causes dark patches, the patches in part 1 are light and to me very different to the effect of a dirty sensor.

I hope you find this useful but please do not hold me responsible if you try this job and fail.

Here is an example of the problem. This picture was taken on a dry day and the outside of the lense was completely clean.

Image
Lumix repair Pt1 by route9autos.co.uk, on Flickr

I had also ruled out dirt on the sensor as I have had a few cases of dirt on the sensor and as it is directly on the sensor it tends to show up as dark patches, not the light areas seen here.

I had to use a lesser quality camera to take pictures of the process but you may be able to make out the specks of dust inside the lense.

The black ring is glued to my lense and is threaded to let me use filters on my compact camera.

Image
Lumix repair Pt2 by route9autos.co.uk, on Flickr

Job 1 is getting into the camera. With a size 0 phillips screwdriver I went round the camera body and removed the screws. I removed the fixings for both the front and back covers of the camera.

Image
Lumix repair Pt3 by route9autos.co.uk, on Flickr

With the covers removed you need to remove the ribon cables for the screen.

See part 6 for a close up of how the connectors work.

The tripod mount also needs to come off. To remove it, slide it to the left as you look at this picture then lift it out.

Image
Lumix repair Pt4 by route9autos.co.uk, on Flickr

With the covers removed I have laid out the parts along with the new lense unit seen on the right.

Image
Lumix repair Pt5 by route9autos.co.uk, on Flickr

The ribon cable on the bottom operates the lense and the ribon connector above is for the sensor.

Image
Lumix repair Pt6 by route9autos.co.uk, on Flickr

To remove the ribon cables from the connector, gently pry up the grey bar and then pull the cable from the cconnector.

Be careful with the ribons, they damage easily.

With the ribons disconnected its time to remove the 3 screws that hold on the lense unit.

Image
Lumix repair Pt7 by route9autos.co.uk, on Flickr

On the left is the old unit and on the right is the new one.

Image
Lumix repair Pt8 by route9autos.co.uk, on Flickr

The new unit is supplied without a sensor so this needs swapped over.

The sensor unit is the silver plate in the middle of the lense and is held on with 3 screws.

If simply doing a sensor clean you can bypass part 5-7 and with the sensor screws undone lift the sensor up to clean it.

This is a view of the important side of the sensor.

Image
Lumix repair Pt9 by route9autos.co.uk, on Flickr

If doing this yourself, make sure the filter is attached to the front of the sensor when you remove it.

Make sure you do not touch the front of the sensor or the filter and try and keep everything as dust free as possible.

With the sensor swapped over its time for re-assembly.

Image
Lumix repair Pt10 by route9autos.co.uk, on Flickr

You will find it easier to set the screws in place on the lense before lowering into the body as they are pretty fiddly to get in once the lense is fitted.

Make sure you dont force anything, it will all sit in place without pressure.

Re-fitting the ribbon cables is straight forward enough but again be careful not to kink or crease them.

Once they are back in place you can close over the grey bars to lock them in place.

Image
Lumix repair Pt11 by route9autos.co.uk, on Flickr

Before closing the body I put the battery back in and gave the camera a quick test, making sure my fingers were away from the flash capacitor.

Image
Lumix repair Pt12 by route9autos.co.uk, on Flickr

All seemed good so I finished off assembly and you will be able to see how successful the job was with my future pictures.

Hope you enjoyed watching me risk my camera but in my opinion, nothing ventured nothing gained.

Dave
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Re: Lumix TZ7 compact lense swap.

Postby mrlipring » Fri Sep 28, 2012 7:34 pm

Nicely done!
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Re: Lumix TZ7 compact lense swap.

Postby BTJustice » Fri Sep 28, 2012 7:45 pm

I forgot to add the update that the new lens unit wouldnt focus when using more than 6x zoom.

I ended up taking brave pills and dismantled the lens unit that came out of the camera, cleaned inside the lens and re assembled it.

Fitted the clean and re-built lens unit in the camera and all works fine again.
Check oot ma flickr page;
http://www.flickr.com/photos/route9autos/

The West of Scotland VW club.
http://www.vwscotclub.co.uk

For handmade jewellery, go to:
http://www.weegemjo.co.uk
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Re: Lumix TZ7 compact lense swap.

Postby Lucky Poet » Fri Sep 28, 2012 11:55 pm

Bravo, sir! No, really - no mean feat.
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Re: Lumix TZ7 compact lense swap.

Postby Sharon » Sat Sep 29, 2012 7:08 am

I felt quite nervous just seeing what you have done!

Good effort!
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