Question about Zeiss Humphrey 740 Visual Field Analyzer

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Why does humphrey visual field analyzer beep when i turn it on?

When turning on machine inside lights come on and nothing else works,.. just stats beeping.

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The trouble is with the CPU. It needs to be replaced

Posted on Sep 10, 2014

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Posted on Jan 02, 2017

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1 Answer

It won't type at all. Turns on and beeps and does nothing.


the rod down inside the machine needs lubriacation. take some light machine oil and lude the rod move the carrage back and forth now clead the rod with a cloth then re oil the rod and you should be good to go. try this and see if this helps

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Machine turns on and just beeps


Replace the bad thermistor. Costs about $6. Not that hard to do. Check out repair videos at repairclinic.com. Or appliancepartspros.com

Oct 08, 2017 | LG WM-2277HW Front Load Washer

1 Answer

Model Gw709AU


When you start your machine is the water just go stop go stop,
Just wait for the machine to display an error code on the wash progress lights and beeps constantly.
It could be the Rotor Position Sensor, out of balance switch or lid magnetic reed switch.
Your error code will determine this.
Is your machine beeping & showing a weird pattern of lights on the wash cycle, It is displaying an error code,
To read this error code you start at the red spin light & work to the left only add up the lights that are on. Red spin light = 1 2nd rinse light =2 1st rinse light =4 last wash light=8 4th wash light=16 3rd wash light=32 2nd wash light=64 1st wash light=128
j8paojvh5jrgaaaaabjru5erkjggg==


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Feb 20, 2013 | Fisher and Paykel Washing Machines

1 Answer

Fisher & Paykal MW512 turns on multiple beeps then turns off


This kind of problem is usually related to a faulty display module, or faulty motor control module (Computer isnide of control panel compartment)

Without spares to change and test with, you wont be able to diagnose 100%

Usually when there is a problem, a series of lights go solid on the control panel and the machine beeps to alert you to a problem and this is a fault code, but if nothing is showing at all, then I have to lean towards the display module underneath the touchpad. Especially considering it wont illuminate.

Nov 22, 2012 | Fisher and Paykel Fisher & Paykel Washer

1 Answer

Washing machine pumps intermittedly when filling up and then wont progress to the next cycle it stats beeping and 2 lights come on one each end of lights board


Hi just read your posting.Could you please confirm the model number of your machine for me.Now you mentioned in your posting the 2 lights that are lit when the machine is beeping are the 1st in the row and last.These lights are in a row of 8 lights so starting from the left to right the lights that are lit are 1 and 8.Is this correct?Please reply with aditional information on the questions and I am sure I can help you.Looking forward to your reply.

Oct 03, 2010 | Fisher and Paykel Fisher & Paykel Washer

1 Answer

My hotpoint oven wont work!


It's possible that yourt-stat went out right after you turned the oven back on today. If neither your bake and broil elements will not come on, it's the t-stat control. We have parts for Hotpoint Ovens, so call us and we'll be sure to get the correct part out to you asap. We hope this solves your problem and we look forward to working with you.

Sep 10, 2009 | Hotpoint RGB745 Gas Kitchen Range

1 Answer

Computer is blank with nothing but beeps


Make sure the microprocessor fan is working. If so, take fan out and take processor out and then reseat it. This cleans the pins which might be corroded. keever

Mar 06, 2008 | Computers & Internet

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