Red fade, red flashes screen turns off followed by tv turning off.
The tv will turn on for around 10-15 seconds, then the bottom will start to fade red it will then flash red, sometimes with kind of a zzz sound kinda like a hiss, then it will shut off.. or it will stay on but the picture will not show only the audio. i tried the easy fix on simplylife board where you adjust the voltage screw, this did not fix the problem, it would take the red fade out but the screen would flash red and shut off still at the same times. im good with electronics just never worked on a tv before, but i am interested in fixing it myself, im can solder and check for voltages
so my question is, what is wrong and how would i go about fixing it. i have read and see mixed answer to, there is a short somewhere in the wiring to, there is a short in the bulb to, there are bad parts on the d-board .
tv also flashes 8 times when it shuts off. i would appreciate any assistance in this matter as it will hopefully be a christmas present to my father in law.
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The Blue SCREEN setting is too high. These adjustments are located inside the TV behind the front panel. There are two screws behind covers and then a wooden panel to remove to access the adjustments. The leftmost set are for BLUE, the middle are GREEN, and the right are RED. The top row are FOCUS and the bottom are SCREEN. Focus will focus/unfocus the tube and Screen will adjust the power of that tube (there are 3 tubes, one for each color). If Screen is adjusted too high, horizontal lines will appear (my TV had red lines, but I played around with the knobs and saw that it could happen on any of the colors). Additionally, if SCREEN is set even higher than that, the tube could go so high that it turns the whole screen that color (in your case, blue). If this happens the TV will shut down, probably due to either overheating or overvolting. To fix this issue, turn the appropriate SCREEN dial down until the lines go away. In your case, you want to turn the lower left dial down. Don't turn it too far down, if you turn it more than necessary the TV can give you an AKB error (noted by the STANDBY light flashing a sequence of 5 blinks).
take the front cover off.two hidden screw at each corner or on the sides .now take off cover in middle of set.two the right you'll find a small box , it will have 3 adjustments on the top and three more at bottom.the bottom ones are your screen controls.the middle is your green and on the right is the one you turn counter clock wise.warning ...turn that control a hair .that will solve the problem
The service manual on page 8 shows how to adjust the Red/Blue/Green screen voltages. To get to the adjustment board, take the front speaker grill off (two screws at the bottom left and right) and set it aside. No need to disconnect any wires. Then remove the plywood board with 4 screws that exposes the screen/focus adjustments. The top 3 adjustments are for focus, and you need not mess with these. The bottom 3 adjustments are for Red/Blue/Green screen voltage rough adjustments. My screen showed red lines, so I had to turn the bottom right adjustment with a philips head screwdriver just slightly until the red gun retrace lines where no longer visible.
Red CRT is doing short circuit in the neck. You can try to open the front panel and to hit easy the neck with wood or something and to decrease the red screen a bit. If doesn't work then replace the CRT.
Mine just did the same thing. Except for it was green instead of blue. The service manual states 8 flashes from the light stands for an overvoltage. After reading the manual for a bit I realized the bottom row of 3 adjuster screws from behind the speaker grill adjust the output for the red, green, and blue colors. BEFORE OPENING ANY TV OR MONITOR PLEASE KNOW THAT THE VOLTAGE INSIDE CAN KILL YOU EVEN IF UN-PLUGGED so please be careful and only adjust what is mentioned here. I un-plugged the tv, removed the grill and the board covering the internals, and carefully turned the 3 adjustment screws all the way down. I then waited about 10 minutes (don't know if this made a difference). I turned on the tv, turned the channel to an auxilary input (for a black screen), and slowly raised each of the 3 bottom screws one by one up clockwise until i could see a faint green, blue, or red line (depending on the screw), and then turned each one back a hair until the screen was black again. Only adjust one at a time, the order for colors are blue, green, then red from the left. I hope this fixes your problems. Be careful when working inside a tv, I suggest not using a screw driver to adjust the screws due to the possibility of it slipping and someone getting hurt.