Iris unresponsive stays open - Sony HVR-Z1U Mini DV Camcorder

open the cover , unplug the flexible cables and other cable connectors, open the mainboard, remove the IRIS motor unit, clean the gear after that put in super lube into the gear.then plug it in again. if the same problem replace the IRIS motors.
be sure to change the lamp.
Good luck, thanks

sounds like the Iris control motor is not opening the Iris.....it might be stuck closed or no power to the Iris control motor. when you switch to camera mode, look into the lens assembly, you can actually see if the Iris is opening...if you don't see any movement, then your problem is the Iris, if you do see the iris opening, then your problem might be more severe such as the camera module itself....what ever the case, your camera needs to be opened up for service.
good luck
silvio

Hit the iris button on the side of the camera, then use the dial to dial the iris into an open position and let more light in. Know that the higher the number, the less light coming in, so 16 is just below closed iris, 2.8 is just before completely open iris. The iris is like the pupil of your eye. You should always be in manual iris to control the iris with the iris dial, keeping the video between 4.0 and 6 usually gives you the best exposure (not too hot or too low light.)

You also may have a neutral density filter on. You should only apply this switch if there is too much sunlight. Use nd 1/8th for moderate sunlight, nd 1/64th for bright sunlight. Then adjust the iris with the dial again to get the best picture exposure.

Before opeing the lens. You cannot check the iris without setting the lens on the body. Engage the lens on to a body and check the iris opening by releasing the camera at "B" speed. While holding the shutter release, move the f/stop ring if the iris work. If not, you cost of repair by technician would run anywher from $35 to $60 so go ahead and be brave. open 4 screws from the back and start digging in. Good Luck. For further repair assitance, go to www.camerarepairjapan.com James.

Its problem of bad CCD Imager, Please click JVC Customer Notification page for details. JVC might have plan to repair it free of cost. Hope this info will help you to solve the problem.

Problem is the dynamic iris its broken. The only solucon is to change it so get the projectorn to the nearest panasonic sevice and thety will fiks it on waranty

It will need replacement if under warranty
A repair will be almost as expensive as buying a new camera

it is likely the Iris is stuck closed , maybe due to humidity.or the actuator that opens it is kaput.
it will have to be totally dissembled to get to the iris.
if you look into the lens and see the iris leafs you can verify that they stay closed.

first check the iris of the camera if it is opening,you will see this when you look inside the lens of the camera when you turn on and off the switch at camera mode if the iris is opening....if the iris is ok the second problem may occurs of your camera is the ccd image sensor....

a penlight shined into zoomed back lens - shows if iris is open ( ccd looks like a small xmas tree scene , deep in center ) : if iris is stuck closed , a thorough lens cleaning should restore camera video - if iris is open , the ccd may be or already has failed ;