The problem is when it is switched on it takes ages to come om and then off, if i press volume this comes on as if the 3 guns are miss matched ie the colours, then it will come on properly then off again, removing the back i noticed that when the 3 tubes lit up it worked then went off again, could this be a faulty tray or power supply, also i cannot obtain a manual for this tv, can any one help
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Depending on your TV, here are the generic steps Toshiba has outlined to reset your TV:
1. Press the MENU button on the remote (or MENU on the TV) to open the Setup menu.
2. Using the arrow keys on the remote (or volume / channel on the TV), highlight INSTALLATION at the top of the menu and press ENTER. A new set of INSTALLATION menu icons will appear.
3. Highlight the SYSTEM STATUS menu at the top.
4. Highlight SYSTEM INFORMATION below and press ENTER.
5. At the top of the SYSTEM INFORMATION window, use the arrow keys on the remote (or volume / channel on the TV) to scroll Left/Right through the menu bar to select FACTORY DEFAULTS. Press ENTER.
6. Highlight YES and press ENTER. To cancel the reset process, select NO and press ENTER.
yes. tv has a circuit which controls current to the red, green, and blue piture tubes. you wont get picture until they are balanced. adjust the screen controls until it comes on faster. it should only take maximum 20 seconds for a picture. gaurantee it will fix it. adjust the screen control
See my solution <http://www.fixya.com/support/t2795690-convergence_off_blue_line_only_vertical>.
You need to get to the service menu--it's been 4 years so go to AVSforum.com to turn off the different guns and get the better pattern.
At your risk:
To get into Service mode:
1. Turn your TV on.
2. For X81 or earlier series: Press MUTE on your remote and release.
2. For H80/H81/HX81 series: Press MUTE on your remote and release two times ("Mute" on-screen)
3. Press down MUTE on your remote again and hold. While holding, press the MENU button on your TV set's front panel. 4. Release both buttons.
5. An "S" should appear on your screen. Press MENU again on your TV.
6. Now you're in service mode. Channel Up/Dn - Scrolls through Parameters and Volume Up/Dn - Changes Parameter Value
To get into convergence mode:
Get into Service mode, then
Hit '7' to bring up the convergence grid.
Buttons 100, 0, and ENT control which gun you want to turn off (if you want to align the red to the green without seeing the blue gun and other variations).
2=up, 8=down, 4=left, 6=right, 3=change gun to converge, 5=converge that point.
To exit convergence mode you press 7 once and your screen should look like it's imploding then return to normal and then you press 7 to get back into regular service mode.
I have more info found on the board.
1.- Turn off your TV 2.- On the remote control, set the VCR/TV slide switch to TV position. 3.- While holding in SP/EP button, press the code button listed below that corresponds to the brand of your TV 4.- Press TV POWER on the remote control. Once your TV has turned on, your remote is set up to operate your brand
Brand of TV Brand Code Button Mitsubishi 1,2,3 Fisher 0 G.E. VOLUME UP Goldstar 2,9 Hitachi 8 JVC MUTE Magnavox 4 NEC 2,9 Panasonic CHANNEL UP, CHANNEL DOWN Pioneer 6 Philips 4 Proscan VOLUME UP Quasar CHANNEL DOWN RCA VOLUME UP Sanyo 0 Sharp 3,5 Sony VOLUME DOWN Toshiba 7 Zenith INPUT
I finnaly found my VCR Manual, and I'm glad to share this info with you, because I was looking for the manual all
over the web and FOUND NOTHING!. Bye!
A component is failing and it is thermo sensitive. As it warms up it starts to work in spec, and thus the set can start up. Most of the time this type of component can be in the scan amplifiers or in the power supply.
The CRT is going weak. When its emission level is below a specific value according to the design of the set, the uPC sends a command to not allow the high voltage to start up, or it is not allowing the the electron-guns to be biased on. As the heater in the CRT warms up, the electron-gun becomes in to proper spec, and thus the uPC allows operation.
Eventualy the set will no longer start up, or what ever is failing will fail completely.
You can take the set in for a service estimate, but personaly I would be shopping for a new set.
MMMM Hard call here. The fact that it does try to come on blue maybe an indication that the power supply regulator circuit is good. It could also be a shorted blue tube and when it comes on its overloading the screen drive and the set goes into overload protection shutdown. The real way to see Would be to pull off the blue crt socket as well as the Hi Voltage lead on the crt and see if the set comes on without blue. If it does Your gonna need a pict tube. If it dosent then troubleshooting along the switched power supplys would be neccassary.. BUT I advise you THAT IF YOU HAVE NO EXPERIENCE TROUBLESHOOTING TV SETS PLEASE SEEK A PRO TO ASSIST YOU AS THERES VERY HIGH VOLTAGE INSIDE THESE SETS EVEN IF THEY ARE UNPLUGGED. GOOD LUCK