Lumix DC-TZ200 - likely cause of screen failure?

Started 7 months ago | Questions
Doctor Trousers New Member • Posts: 6
Lumix DC-TZ200 - likely cause of screen failure?
1

Hi folks, my girlfriend sent her Lumix DC-TZ200 back to Amazon when the screen failed after about a year of use. The display inside the viewfinder still works fine, and you can see that the display lights up when it should, but it remains black. Amazon decided not to repair it, and instead said they'd send her a new camera, which they have done. Weirdly, they have also sent the unrepaired original camera back too. I'm not sure this was meant to happen at all, but anyway, she has two cameras now.
I'm completely new to camera repairs, but I am pretty experienced with electronics, my full time self employed gig is computer and phone repairs, so I fix most stuff myself. I looked online to see if replacement screens are available, which they are, and I figured that if the screen connector can be accessed without opening it up to the point that I expose any of the sensitive optical stuff, then I could probably repair it. Right enough, there's a pretty minimal amount of disassembly involved in accessing the screen connector, with no danger to any of the optical side of things.
Now, if the display connected straight to the mainboard, I'd just go ahead and order a replacement screen. The thing is, there is another board that goes between the display and the mainboard. The ribbon from the display goes to the little secondary board, then another ribbon goes from that to the mainboard. So I don't know if I want to go ahead and spend £50 ordering a screen from overseas without ruling out the possibility that it's actually this secondary board that has failed. I'm guessing it was never sent to a Panasonic technician, and was just checked over by someone at Amazon, because it would be a ten minute repair job for anyone with access to spare parts, whether it's the LCD display itself or the secondary board that has failed.
Does anyone have experience of repairing this or a similar enough model, who could confirm that it's the LCD display itself I need to replace? I'm pretty sure it's not just an issue with a sensor, because the sensor seems to be working fine. The display inside the viewfinder switches on and off as it should when you cover the sensor, and you can see the light on the screen going on and off as it should, it just doesn't display anything. I'm about 90% sure it's the LCD panel itself that has failed, but I'd really appreciate the input from anyone who has repaired a similar model themselves, or had one repaired. Thanks.

ANSWER:
This question has not been answered yet.
Rambow Senior Member • Posts: 2,184
Let me get this straight
1

1. You have experience with repairing electronics.

2. Both the lcd and the viewfinder display a black image, but you think the lcd screen alone is faulty?

3. You are pretty sure the sensor is not faulty, but not 100%( have you tried taking pictures and view them on a computer, don't need a camera lcd for that).

4. The LCD has backlight(indicating it works), but you still believe it doesn't work because the displayed image is black, like when the lens is covered or the sensor doesn't work?

I must have read this whole topic wrong, going to let others figure this one out.

PS. The only way of damaging a camera lcd that i know of(apart from literally breaking it) is to drop the camera or simply rip the ribbon while trying to disassemble the camera. But the tz200 has two screens, the EVF and the main lcd, and i still don't know which is broken(both, only the LCD?) If the EVF works, then the camera can still be used and this is also a clear indicator that indeed only the lcd was damaged, since it's the only part that prevents the camera from working as intended.

 Rambow's gear list:Rambow's gear list
Sony Mavica FD-71
kh1234567890
kh1234567890 Contributing Member • Posts: 712
Re: Lumix DC-TZ200 - likely cause of screen failure?
1

It could be something as simple as a dislodged ribbon cable connector or it could be more serious. I do not have the TZ200 service manual but the TZ100 service manual might give some help.

 kh1234567890's gear list:kh1234567890's gear list
Panasonic ZS100 Pentax K-7 Pentax K-5 II Pentax smc DA 15mm F4 ED AL Limited Pentax smc DA 16-45mm F4 ED AL +15 more
Erik Ohlson
Erik Ohlson Forum Pro • Posts: 22,390
Re: Lumix DC-TZ200 - likely cause of screen failure? FIX !

Doctor Trousers wrote:

Hi folks, my girlfriend sent her Lumix DC-TZ200 back to Amazon when the screen failed after about a year of use. The display inside the viewfinder still works fine, and you can see that the display lights up when it should, but it remains black. Amazon decided not to repair it, and instead said they'd send her a new camera, which they have done. Weirdly, they have also sent the unrepaired original camera back too. I'm not sure this was meant to happen at all, but anyway, she has two cameras now.
I'm completely new to camera repairs, but I am pretty experienced with electronics, my full time self employed gig is computer and phone repairs, so I fix most stuff myself. I looked online to see if replacement screens are available, which they are, and I figured that if the screen connector can be accessed without opening it up to the point that I expose any of the sensitive optical stuff, then I could probably repair it. Right enough, there's a pretty minimal amount of disassembly involved in accessing the screen connector, with no danger to any of the optical side of things.
Now, if the display connected straight to the mainboard, I'd just go ahead and order a replacement screen. The thing is, there is another board that goes between the display and the mainboard. The ribbon from the display goes to the little secondary board, then another ribbon goes from that to the mainboard. So I don't know if I want to go ahead and spend £50 ordering a screen from overseas without ruling out the possibility that it's actually this secondary board that has failed. I'm guessing it was never sent to a Panasonic technician, and was just checked over by someone at Amazon, because it would be a ten minute repair job for anyone with access to spare parts, whether it's the LCD display itself or the secondary board that has failed.
Does anyone have experience of repairing this or a similar enough model, who could confirm that it's the LCD display itself I need to replace? I'm pretty sure it's not just an issue with a sensor, because the sensor seems to be working fine. The display inside the viewfinder switches on and off as it should when you cover the sensor, and you can see the light on the screen going on and off as it should, it just doesn't display anything. I'm about 90% sure it's the LCD panel itself that has failed, but I'd really appreciate the input from anyone who has repaired a similar model themselves, or had one repaired. Thanks.

Okey-Doakey !

Go to:                 https://www.youtube.com/watch?v=0nmwt0frZns

This is a 10-year-old video about disassembling A Panasonic camera.

The principle remains the same: Possibly by searching You-Tube, you can fond something a LOT more recent - I haven't looked. But I HAVE repaired several Panasonic cameras using this information. As someone said (above) .

I'm starting you off with this one because Houghton tells what he is doing logically & clearly. Some work too fast to really follow.

I do follow some of my own procedures, however:

1). To keep track of the little screws which Graham just tosses aside, I use a towel on my work surface to prevent screws from bouncing or rolling away.

2). Because some screws are different lengths &/or have other differences, I make sketches of the camera as I go along, and place the screws & other small parts next to the sketches - at the location they came from.

3). Take your time, this is not "Rocket Science", it's really very easy although you do need a set of tiny screwdrivers. (If you order them from Amazon, you will probably have them the next day.)

4). I have had good luck getting used parts such as display screens from eBay at MUCH lower prices.

-- hide signature --

"Measure wealth not by things you have but by things for which you would not take money"
www.flickr.com/ohlsonmh/ ohlsonmh@yahoo.com

OP Doctor Trousers New Member • Posts: 6
Re: Let me get this straight

Looking back at the first paragraph of my OP, I perhaps should've said "the display inside the viewfinder works fine and displays an image. I can see that the backlight works on the LCD panel, but it doesn't display an image"
I don't seem to have an option to edit this at the moment though?

OP Doctor Trousers New Member • Posts: 6
Re: Let me get this straight

The screen inside the viewfinder works fine, it displays an image as it should. It's only the LCD display that displays black. I don't think I was that unclear about this? Also, the fact that Amazon sent out another £600 camera to replace it does somewhat imply there is an actual fault, and not just user error at play, yes?

I can see that the sensor works, because the screen inside of the viewfinder is active when you put your eye to it, then goes black when you move your eye away from it.

Likewise, I can see that the backlight of the LCD display is active whenever the viewfinder display is inactive. The LCD just doesn't display anything.

I've checked that every connection between the display and the main board is sound. Nothing is loose and none of the ribbons are damaged. The camera has never been dropped, and the fault was sudden, ie it was not preceded by an intermittent fault, flickering, anything like that. My other half had just assumed at first that she'd disabled the screen through a settings menu by mistake.
Like I said, I'd be totally confident that it was the LCD that had failed were it not for the presence of a daughter board between the LCD and the main board.

OP Doctor Trousers New Member • Posts: 6
Re: Lumix DC-TZ200 - likely cause of screen failure? FIX !

Hi Erik, thanks, I've already opened up the camera and established that replacing the screen is well within my abilities. Accessing the screen takes a fairly minimal amount of disassembly.

I'm really interested in opinions on the likelihood that the LCD panel itself has failed, vs the likelihood that the issue is with the small circuit board that goes between the LCD panel and the main board, ideally informed by other cases where this or a similar model has been repaired.

OP Doctor Trousers New Member • Posts: 6
Re: Lumix DC-TZ200 - likely cause of screen failure?

Thanks, the ribbons are all soundly connected, I've disconnected and reconnected every ribbon between the LCD and the main board.
The signal is getting through to the LCD too, because the backlight is active when it should be, there's just no image on it.
I'm pretty sure it is the LCD itself that has failed, if it was a mobile phone or a tablet with the same symptoms I'd be completely confident. It's literally just because there's a PCB that goes between the LCD and the main board that I'm uncertain at all.
Edit: just to clarify as well, when I say that I know the sensor is working, I mean the sensor that detects when your face is near the eyepiece.
The sensor as in the one that actually takes the photos is definitely working too, as the camera is fully functional when using the viewfinder display.

kh1234567890
kh1234567890 Contributing Member • Posts: 712
Re: Lumix DC-TZ200 - likely cause of screen failure?

Since you seem to be in the UK it might be worthwhile to get a quote for repair from DKAVS . You'll have to send the camera in and pay return postage if you then decide not to have it fixed. At least they'll tell you what is up with it. Presumably you've tried a camera reset ?

 kh1234567890's gear list:kh1234567890's gear list
Panasonic ZS100 Pentax K-7 Pentax K-5 II Pentax smc DA 15mm F4 ED AL Limited Pentax smc DA 16-45mm F4 ED AL +15 more
Erik Ohlson
Erik Ohlson Forum Pro • Posts: 22,390
Re: Lumix DC-TZ200 - likely cause of screen failure? FIX !

Doctor Trousers wrote:

Hi Erik, thanks, I've already opened up the camera and established that replacing the screen is well within my abilities. Accessing the screen takes a fairly minimal amount of disassembly.

I'm really interested in opinions on the likelihood that the LCD panel itself has failed, vs the likelihood that the issue is with the small circuit board that goes between the LCD panel and the main board, ideally informed by other cases where this or a similar model has been repaired.

-- hide signature --

Yes, you are "on it'.

Unfortunately , even on eBay TZ200 parts are fairly expensive, so "Give it a Try - can't hurt" is sort of "off the table". I wish I could help, but as I am quite satisfied with my older cameras (Panny ZS25/ Casio ZR700/800) I haven't kept up.

Only thing which occurs to me now is to try to find a "Non-functioning" used TZ200 & try cannibalizing it for your part. Kinda' risky, though, but maybe cheaper than a specific used part.

Nice to hear from someone who knows what he's doing, though: Good Luck!!

.

.

--
"Measure wealth not by things you have but by things for which you would not take money"
www.flickr.com/ohlsonmh/ ohlsonmh@yahoo.com

OP Doctor Trousers New Member • Posts: 6
Re: Lumix DC-TZ200 - likely cause of screen failure? FIX !

Ha, I am fairly on it with this, yes, but only because I've established that it won't involve going anywhere near the actual optical parts. Proper camera repair is beyond by skills (or more accurately beyond my ability to keep dust particles out of sensitive areas). There are multiple layers of solid, heat dissipating copper between each layer of electronics in this thing, and the screen connector only requires the removal of the rear outer housing.
The replacement screen itself is between £50 to £70 on Aliexpress, but there's none in the UK, and I'm guessing the £50 one will end up closer to £70 by the time extra charges have been whacked on it. There are old eBay listings that show up in Google results, but none that are current. I am well versed in sourcing parts, and cannibalising another non working device is a favoured method for sourcing genuine phone parts, when it can be a minefield picking through all the third party ones of varying quality.
The little board that goes between the screen and the main board doesn't seem to be available anywhere, and there's no sign that it ever has been. I've both looked it up by part number and scrolled right through the parts listings for this model. I suppose the fact that there's a few places that sell the screen, but nobody selling the board is likely a sign that the screen is comparatively prone to failure, whereas the board is not?

Keyboard shortcuts:
FForum MMy threads