Question about Hitachi 42HDS69 42 in. Plasma Television

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Unit will not turn on from standby

Main power switch is on and the RED LED is lit meaning it's in standby but when i go to turn the tv on the RED LED will turn off then come back on and the tv is not on. Normally when i turn the tv on the RED LED will turn off and a BLUE LED will turn on. I tried unplugging the tv for acouple of minutes and then plugging it back in but no luck. Any help is welcome.

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Re: Unit will not turn on from standby

I had a similar problem and it was caused by my cable box being in scart 1 as soon as I changed over to scart 2 the problems went away,

Posted on Jul 24, 2008

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Samsung 75 smart tv , is power on or off when red light is on ????

Red light means that the unit is in standby mode, It has power but is not turned on.

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Panasonic TH-42PX60B

have you already service the main unit, or you an initial check on the parts of the TV..

kindly post back the TV model/maker..

Thank you

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My Sony Bravia HX8/46 will not turn on, I check all the power going to it and it all works. Is there something I can do?

Is the standby led on the front lit. If not likely the problem is with power supply. If the standby led is on does it go off when the power button is pressed? Does the led blink. If so count the blinks and get back. The power supply provides an standby voltage to the main board. If the standby led is lit then this voltage is present. When the power button is pressed the micro sends a turn on voltage to the power board. Normally the power supply will respond and all other voltages needed to operate the set will come up. if a component is shorted the micro will not turn on the power board and will usually give a failure code via the standby led.

May 31, 2013 | Flat Panel Televisions

1 Answer

Panasonic TH 42PA25. Front power switch LED is solid red. SC Board LED (D6583) is not lit. SS Board LED (D6765) is not lit. However, SS Board LED D6769 is lit. I suspect PA or P board.

The TV is on standby mode due to protection; some error in the board. If you have spare boards, try replacing it one by one, starting from display board.

Jul 28, 2012 | Panasonic TH-42PA20U/P 42 in. Plasma EDTV

1 Answer

Hitachi 55in plasma TV, model 55HDS69. It will not power up from either the remote or the on/off switch on the side. The TV was used a lot, for more than 5 years. It shut off while running. The red...

Hi sir Jim!!!!

kindly check the 5 LED if there is lit lights to diagnose where the fault came from..You said the 5 led turn off for 1 -2 seconds it means no error but still won't turn on I think there sometime wrong on logic circuitry..


Try to read the voltages on highlighted words on picture of block diagram above such as vs,va,vcc,stby+5v,stby+3.3v,+5.5,+10.5 and +12v...

After that let me know the results to diagnose where the fault from..

Hope it helps...


Jan 19, 2012 | Hitachi 55HDS69 55 in. Plasma Television

1 Answer


If you do not get any light on the front panel, it means the 5vdc standby power supply is not working or failed main logic board, you will have to do the power supply inspection first.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:


Please post back what you find.

Jul 21, 2010 | LG 42LG50 42 in. LCD HDTV

1 Answer

I bought my son a 19" philips tv model # 19pfl340d/ order to turn tv on it must be unplugged for 10-15 minutes.The first one I bought did the same thing and I returned it.this one is exactly the...

The remote control will not operate the TV when the TV is in the OFF mode (No LED lit on front bezel). To change the mode from OFF to STANDBY or ON, press the POWER button on the side of the TV. Once the POWER button is pressed, the LED will change to either red to indicate STANDBY or green to indicate ON, whichever mode the TV was in prior to being turned off with the TV POWER button.

By pressing the POWER button on the side of the TV, the mode will toggle from OFF to either STANDBY or ON. If the POWER button is pressed and then the LED on the bezel is red, the TV is in STANDBY mode and will need to be turned on using the remote control. If the POWER button is pressed and then the LED on the bezel is green, the TV is ON.

Nov 11, 2009 | Philips 19PFL3403D/27 19 in. LCD TV

2 Answers

Orange Led syndrom

I found the following solution on internet:
Make: Viewpia
Model: LC-32IEB2
Fault: Unit held down with only orange LED lit
Remedy: Remove the main metal screen cover from main board and check the input
voltage on to the main 3.3Volt regulator IC202 it should be bang on more or less
5Volts, if not replace capacitors C905 330uf 10v C908 470uf 10v both are to be
found in the main power supply section.
J Williams

Unfortunately I'm not very technical so now I will need to find someone to do this for me...

Dec 22, 2008 | Flat Panel Televisions

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