Monitor and viewfinder flicker

If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.

From the information desribed, this means that your CRT monitor is going dead. Unfortuntly, there is no way to stop the flickering unless the monitor was replaced. I hope this has helped

Problem now solved. I switched the camera on and off a few times and took several test photos. After a few minutes the problem resolved itself. I suspect the cause was condensation, but cannot be sure.

Monitor flickering can be one or several problems.
Depending upon the age of the unit and value, you should decide weather to repair it or replace it.!
More than likely, it is a problem in your power supply.
The capacitors in the supply will leak and most often crown.
If when you start unit after sitting for a while, it shows good and then after a few minutes it starts flickering, you can bet it is one or several capacitors in the supply.
This monitor is a 17 inch and not really worth the time and investment to repair, unless you have the technical skills to remove and replace electronic components.

Solution = Sledgehammer. My 226BW has been taking ages to warm up for a while and now it is a permanent dull flicker.

I had something similar - it could well have to do with which AF mode you've got selected. Look in the menu.

its the monitor its the main board may stuff up tomorrow may stuff up next week or in a years time hard to day as its only flickering take in for a check up

This sounds like it might be a defective CCD imager. If so, Canon should fix this for you for free, including free shipping both ways. This is regardless of your camera's warranty status. Please check the following two links for more info:

http://camerarepair.blogspot.com/2007/11/canon-digital-cameras-showing-black.html

http://www.usa.canon.com/consumer/controller?act=PgComSmModDisplayAct&fcategoryid=225&modelid=13390&keycode=2112&id=29819

Applicable cameras include:
A40, A60, A70, A75, A80, A85, A95, A300, A310, S1 IS, S60, S200, S230, S330, S400, S410, S500, SD100, SD110, IXUS V2/300/400/430/500, IXY Digital 200a/300a/400/450/500

I have a envision professional series and I love it, but I will get to the point.
I recent ly received a Envision EN9410e monitor, had the same problem (flickering screen then turned on, then off then on then blank). The problem is bad capacitors. There are 7 electrolytic capXon capacitors that will need to be replaced. You should see if the caps are bulging or leaking, if so replace. As known by many replace with the same capacitance and voltage. There are a few incidences that the capacitors where replaced and the problem wasn’t solved; this is because the cap problem wasn’t taken care of and damage occurred to another part of the monitor. The back light is a Royer oscillator (cool things) and it uses two smd mosfet transistors. They are on the green side of the circuit board near a big control chip (they each look like a off rectangle black square with eight pins) you need to see if there is any carbon or chard residue between the pins or burning smell from them, if there is you need to remove the transistor and do some board repair then ether put a new transistor or try the old one. No offence to the people at Envision but not smart putting the drain, gate and source so close to each other under the chip where there is such high voltage! Hope this helps.

Well, this problem is going to only get worse. You can probably send it back to the manufacturer if you still have a warantee, but if you can't just buy a new monitor.