Tv power on red light lighting then push channel button now tv on but red light blinking i measure b+ 135v but red blinking b+degcresing 0 what problem what part chacking

How many red and green blinks to you see? (What pattern?)

The lamp might be at the end of its life. Change the lamp.

what is the model of your tv?

0079 0123 0063 0020 0004 0009 0226 0266 0006 0095 0122
Direct Code Entry

1. Press and hold the SETUP button until the red indicator stays on, then release the SETUP button.
2. Press and release the desired Mode button (TV, VCR, etc.). The red indicator blinks, then stays lit.
3. Enter the 4 digit code from the code tables. Note: after a valid code entry, the red indicator turns off. For an invalid code, the red indicator flashes.
4. With your device on, press CHANNEL UP. If the device responds, no further programming is required. Note: If some buttons do not operate your device, try one of the other codes for your brand.
   
   Code Search Method
   
   
   1. Manually turn on the device (TV, VCR, etc.) to be controlled.
   2. Press and hold the SETUP button until the red indicator stays on, then release the SETUP button.
   3. Press and release the desired Mode button (TV, VCR, etc.). The red indicator blinks once, then stays on.
   4. Press the CHANNEL UP button repeatedly (up to 300 times) until the device to be controlled changes channel. The red indicator blinks, then stays lit.
   5. Press and release MUTE to install the code. The indicator light goes off.
   Most users will want to store VCR codes under the VCR button, Cable codes under CBL, etc. If you want to store a VCR code under CBL, etc., first follow the procedure for Direct Code Entry and press CBL in step 2 of Direct Code Entry, then enter ANY VCR code in step 3 of Direct Code Entry. Then follow the steps above for Code Search.
   IDENTIFYING CODES FOUND USING THE SEARCH PROCEDURE
   1. Press and hold the SETUP until the LED indicator lights steadily. Release Setup button.
   2. Press the mode button that matches the equipment you want to identify. The LED blinks once.
   3. Press and release SETUP. The LED blinks once.
   4. To find the first digit, press each number button from 0 to 9 until the LED blinks. The number you pressed is the first digit of the code.
   5. Press each number button from 0 to 9 again as above to find the second digit.
   6. Press each number button from 0 to 9 again as above to find the third digit.
   7. Press each number button in turn to find the fourth digit. When the fourth digit has been found, the LED goes out.
   
   

The blinks are fault indication. If the standby light blinks 10 times and the set shuts down after that;
Check Q8014 and Q8013 for shorts, leakage, or bad solder connections on the " D" board. If the transistors are bad, check R8051 and IC8005, also on the "D" board

sounds like somebody set the timer. normally this only makes the set enter standby mode and pressing the power button or a channel button usually wakes the set normally.
Just a longshot but have you tried pressing 09 while the light is blinking?

I have the sames t.v you have to go in the back flip the power cord switch...then reboot the t.v.

this worked for me before, but now the problem came back after being fixed for months! unplug the two connectors at the back of the tv, the ones that look like computer monitor cables. then go to top of tv and use manual controls, turn off main power, then turn on while holding input and vol down button, a small service menu will come up, use the channel up down button to go to test, then push input button, there should be a box with reset and some number in red. use the vol buttons to reset to 0, then power off.... reconnect the cables and then turn on the tv.