Question about Sony KDF-E55A20 55 in. LCD Television
After watching fireworks in HD on the 4th, the screen went blank. Sound works fine. It has been in service for The front POWER LED is blinking 6 times red, pauses and then repeats. If I press the power button I get 4 green blinks and then the same 6 red blinks. I cannot turn off the set using the remote or the front onoff button. I tried a hard reset by unplugging the set and then plugging it back in, no joy. Manual says if power LED blinks 3 times it may be the cover to the projection bulb. I have removed the bulb and it looks fine. I reinstalled bulb, no joy. I checked the voltage that powers the bulb, sperry reads zilch. I also checked for continuity between the two leads on the bulb and it reads infinity, which makes me think the bulb is bad. When I press the power button I hear a click from within, but no fan action. A couple of questions: Is the service port on the back of the unit for technicians only? Is the first step replacing the bulb or do you think it may be something else? I am willing to perform further dissassembly of the unit and check voltages, continuity and peruse for fried electronic components. Thanks.
It sounds like the horizontal (H stop) and vertical (V stop) has gone bad. Check Cap 515 and 516. IC1509, Q1505 and the jungle IC, IC206. You can also bring up these fault codes on-screen to see a list of the problem numbers with the abbreviation of the problem and the number of times this problem has occurred. This is slightly different than entering the service mode. To see the diagnostic screen, press the following buttons: Display, Channel, 5, volume Minus, ( not plus ) then Power. This brings up a screen with a list of the problems and number of times they have occurred. Each of the problems named, are abbreviated as, "OCP", "OVP", "V STOP", ETC.
Posted on Jul 07, 2007
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AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.
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