Zeiss Science & Laboratory - Answered Questions & Fixed Issues

i have the manual and the belt, pls contact at memoinstal@bol.com.br


Zeiss Humphrey... | Answered on Jun 20, 2018 | 909 views

This is a brand name, not a specific device and model. That said, here is a page describing mode switch in the setup screen using the touch screen for a specific device. I assume a touch screen would have an icon for turning a device off.
Zeiss HUMPHREY 720i User Manual System Setup

Zeiss Science &... | Answered on Jun 16, 2018 | 655 views

You need to replace the belt that drives the elevator gear from the joystick.
If you need help with this feel free to call or email

Zeiss Humphrey... | Answered on Apr 03, 2018 | 620 views

It sounds like the backlight of the LCD display is out. The Image is still being displayed there is just no light to illuminate the image. Try shining a flashlight on it (Put the light right against the screen) and see if you can see what's on the screen. The display is fairly easy to install but I do not know where you can purchase one directly.

Zeiss Gdx/vcc... | Answered on Jun 26, 2017 | 2,057 views

The two most common problems when trying to find a blind spot are: A.) Forgetting to patch the eye, and B.) Choosing the correct eye in the machine itself.

Zeiss Humphrey... | Answered on Jun 23, 2016 | 866 views


Zeiss Humphrey... | Answered on Jul 25, 2017 | 4,006 views

The battery is soldered to the CPU. People from Zeiss Germany said that it needs to replace all the CPU. Now a days there is no longer spare parts for that instrument. I recommen you just change the day and time each time you turn it on

Zeiss Science &... | Answered on Jan 05, 2017 | 1,765 views

I assume you are talking about your electric fan they could be 2 reason your fan relay need to change or temp sensor i suggest start with changing your relay

Zeiss COLPOSCOPE... | Answered on Aug 02, 2015 | 716 views

In the user manual they list some compatible printers that have a 25 pin parallel connector. We use Lexmark Optra E312L with good results. Once you hook it up, you have to go into one of the setup menus to port it over. The user guide tells the procedure.

Zeiss Humphrey... | Answered on Jul 27, 2015 | 756 views

Sounds like a heat, thermal issue. You may have a non- functioning cooling fan somewhere inside. There are several of them so don't be fooled if you hear one of them running. Same issue happens with CPUs on PC computers. Will suddenly shut off if too hot.

Zeiss Humphrey... | Answered on Apr 07, 2019 | 565 views

I believe "state 19" is a weak main illumination bulb. Not sure if it's the same on your 740, but that's what the problem was with our 750i. Even though the bulb appears to be working, they dim over time and won't pass the start up calibration checks. On ours, there is a round access panel on top of the unit to service this bulb. Just be careful removing the bulb and don't bump any of the clear optical wheels. Part # 2660021106082 (for 750i. not sure about 740) Call Zeiss to confirm. Realize this is an old post so info is for future readers.

Zeiss Humphrey... | Answered on Jul 27, 2015 | 581 views

comunicate conmigo un this Correo luismartinezdsa@gmail.com

Zeiss Humphrey... | Answered on Mar 27, 2015 | 698 views

yo puedo a yudarte a coregir tu problema amigo

Zeiss Acuitus... | Answered on Mar 27, 2015 | 507 views

These equipments use a sbc492 by Aaeon motherboard, and usually they shows a message like "Cmos battery Low".These motherboards use an RTC M48T86PCI with a internal lithyum battery, and just replace that component.Other problems may occur, like damaged slots, and or oxidation, but generally the 486 architecture is a huge way to work,Only clean change the memory(dimm 128 x 100mh)and enjoy.A simple way is a replacement with a new one by Intel, still easy to find in some inventorys, i have many in USA who can suply.

hope to solved

Zeiss Humphrey... | Answered on Nov 13, 2018 | 1,272 views

this happen after patienwith poor fixation and trying many time capturing scan .
also with very very abnormal tissue thickness.

Zeiss Cirrus... | Answered on Jan 30, 2015 | 183 views

mostly is related to media block either cornea,lens vitreous rarly happen with me due to retinal fibrosis.
but these after all optimize focus enhance and correct of refraction + or-

Zeiss Cirrus... | Answered on Jan 30, 2015 | 169 views

Related to my work i found that when capturing very thin retinal layers or very un familiar deformaties that not have normative data bais referances

Zeiss Cirrus... | Answered on Dec 12, 2014 | 126 views

Yes it affect all tje instrument calibration when it is turn on, and when you have patient test the result is afected because the patien has light for the bavk and he is not able to see all the diferents type of lights

Zeiss Humphrey... | Answered on Oct 30, 2014 | 202 views

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