How can I get picture? I just have blue screen with a very small circle with diagonal line thru it

1.- Are lines overimposed to the normal picture?
2.- Horizontal lines? Maybe slanted or diagonal.

It looks like you have screen voltage problem.
Or 185 volts is too low for driving the 3 (red - green - blue) transistors.

Adjustment should be by the flyback body itself.

Without seeing the lines I can't be sure what your set has wrong, but here are a some possibilities:

If the lines are lines are confined to the top inch or two of the screen and the picture looks otherwise normal, the trouble is bad capacitors in the vertical output circuit. Fixable by replacing the bad parts.

If diagonal lines are across the entire face of the picture tube and the picture looks washed out, the trouble is often a bad capacitor on the 200-volt line to the picture tube. This may be on the main circuit board near the horizontal output transformer, or on the small circuit board plugged onto the end of the picture tube. Again, replacing the bad capacitor can fix this.

If your TV is actually an RCA, someone may have bumped a rear-panel adjustment. On the back of the TV near the bottom right are two small knobs. RCA left these adjustments exposed inside of putting them inside the set like other manufacturers. These sometimes get bumped if someone was behind the set cleaning, or if a pet got back there and hit them with a tail. The top knob adjusts focus, and the bottom knob adjusts something called G2 or screen voltage. If this gets turned up too high it can cause the faded picture and diagonal white lines. Turn the adjustment down until a black screen looks black instead of gray.

A bad picture tube or horizontal output transformer can also cause lines through the picture. If this is the case with your set, it's time for a new TV. The transformer is relatively inexpensive but labor costs aren't, and the repair bill may exceed $200. If the tube is bad, there's no point even considering repair. The tube cost alone exceeds the cost of new TV.

Hopefully your lines are easy and cheap to fix. Good luck, and thanks for using Fixya!

If you press the button with the lightning bolt repeatedly, watch the screen for a picture of a lightning bolt in a circle with a diagonal line through it.

This is common problem on this tv, picture tube is bad. Blue and green is more % bad.
Thank you

I f these lines are slightly diagonal and they all showed up at the same time. you probaly have an open resistor in the ABL circuit. since your set is 13 yrs old, I would not put a penny into it.
You might take the front grill cover off and the panel behind it and find the little black box with 6 little controls 3 are for focus 3 are for screen turn the screen ones ever so slightly counter clock wise. the control in the middle is the green screen adjustment. If the green line goes away try the one labeled r for red and b for blue.

On the back of the camera you should see a little picture of a lightning bolt. Click this multiple times and it will cycle thru the different flash settings. Look for the one where the bolt is in a circle and there's a diagonal line going across it. This means NO FLASH. Once you have set that it will prevent the camera from firing the flash.

The lines you saw, i;m sure they are the ones called retrace lines but know the failure could be located on the red CRT board. Most likely the video amplifier is defective and not necessarily the CRT.
What is the model number of your TV?

Good Day,

Does the blue spot have tin white lines?? Is there a picture behind the 'circle'? You may a blue crt (tube) problem.

With the camera on, push the mode button 5 times. The window will show a square with a dark circle in it, and a diagonal line through. Hold the shutter button (that you take a picture with) down until the camera "beeps". This will erase all the pics in the camera. To erase the last pic taken, push the mode button 4 times. This gives you a square with a lighter circle and diagonal line - hold the shutter button until it beeps.

check for bad solder connections on the pc board and a posible leaky cap