Zalman ZM-M215W 3D Monitor - weird screen issue

[Misterkeeks]

Picked up this broken 3D monitor for $3 - why not?

I've never seen this type of issue before. On both DVI and VGA inputs, the majority of the screen is grayish. The top few millimeters of the screen have accurate colors. I can faintly see that it is sort of displaying an image on the grayish part, but the image is very faint, and there are many artifacts on the image.

When I drag a window onto the screen, it takes several seconds to fade in. If I drag it off, it fades out over several seconds.

Any idea if this is repairable? I've attached some images, including one of the desktop background that it should have.

[boyebaran]

Re: Zalman ZM-M215W 3D Monitor - weird screen issue

Hi
i think it is a panel issues .may open the monitor and take picture from logic board and t-con board?
tnx

[Misterkeeks]

Re: Zalman ZM-M215W 3D Monitor - weird screen issue

Hi
i think it is a panel issues .may open the monitor and take picture from logic board and t-con board?
tnx

I have pictures of the logic board and the T-Con board. I'm surprised that the logic board and the panel seem off the shelf - I guess the only special part of this monitor is the polarized panel in front of the LCD.

I'm curious why you think it is a panel issue? It seems like the panel might work - some parts display fine, albeit with a delay. In my uneducated opinion it seems like a T-Con issue- which probably will necessitate replacement of the panel. Anyway, here are the pictures. I might purchase a simple VGA to LVDS board off of eBay for kicks to see if it fixes the problem, as they are less than $5 from China. Or, I'll gut another LVDS monitor and use the logic board from that.

[stj]

Re: Zalman ZM-M215W 3D Monitor - weird screen issue

you cant just gut another monitor,
the controller has to be flashed with firmware to match the resolution and data width of the panel.
the ones from china usually come with a link to download the firmwares.

[Misterkeeks]

Re: Zalman ZM-M215W 3D Monitor - weird screen issue

you cant just gut another monitor,
the controller has to be flashed with firmware to match the resolution and data width of the panel.
the ones from china usually come with a link to download the firmwares.

Do you know how to configure this particular kind:

https://www.ebay.com/itm/272188011190 ?

The back seems to show some sort of configuration of pins to short but I can't figure it out... Also not sure where the 5v input goes...

[boyebaran]

Re: Zalman ZM-M215W 3D Monitor - weird screen issue

Hi
may you check under T-con board for main voltage?there is some smd fuse.please check main voltage on T-con board(like as 5V or 3.3v).if u need more help pls take picture from under T-con board.

[Misterkeeks]

Re: Zalman ZM-M215W 3D Monitor - weird screen issue

I tested voltages on the T-CON board. There are many test points on this board, you can see them on the pictures in the third post in this thread.
Here are the voltages:
1. VDDG...28V
2. VDDA...13V
3. VEEG...-7V
4. VDDD..3.3V
5. ????....0V
6. VEEG...-7V

VCOM_C1: 5.51V
OE1..........1.01V
CLKV1.......1.64V
STV1.........0.01V
VDDG_FLK.20.3V
STH_F1......0V
XDON1.......3.3V
LP1...........0.16V
IPOL1.......1.65V

Points FD0-FD19 all had voltages of 1.15-1.4V

VCOM_C2...5.51V
VDDG.........2V (I think I might have the incorrect value here. I will test again.)
VEEG.........-7V
VDOD_P.....3.3V
VDDA........13.2V
VDDA_P.....13.2V
VDDD_S....3.3V
VDDD_T1...3.3V

STH_B1.....0V

VR1.....12.58V
VR2.....12.02V
VR3.....9.9V
VR4.....9.3V
VR5.....8.91V
VR6.....8.28V

VR7.....7.12V
VR8.....6.13V
VR9.....4.97V
VR10....4.1V
VR11....3.63V
VR12....3.01V
VR13....0.86V
VR14....0.30V

BD0-BD14 ranged from 11.5V to 14V

Let me know what you think of these voltages.

[Misterkeeks]

Re: Zalman ZM-M215W 3D Monitor - weird screen issue

Anyone have any ideas?

[Misterkeeks]

Re: Zalman ZM-M215W 3D Monitor - weird screen issue

Any ideas before I scrap this monitor?

I see a lot of google translated Russian forums say that the "matrix" is broken, does that mean the the lcd panel itself needs to be replaced, or is this still possibly the t-con board?