Question about Hitachi P50H401 50 in. Plasma HDTV

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HITACHI P50H401 ON BLUE LIGHT BLINKS 3 TIMES IN A ROW AS A DIAGNOSTIC CODE...MEANS WHAT??

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6ya6ya
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Posted on Jan 02, 2017

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Fujitsu
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SOURCE: hitachi power light blinking

You have problems with the SDR Printed Circuit Boards

You need change them

Posted on Nov 28, 2008

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  • 197 Answers

SOURCE: flashing blue light error code reset?

bad main pcb

Posted on Jun 07, 2009

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SOURCE: blue power light blinking 3 times

I am having the same problem, what was the solution to this problem? And how much did it cost to fix it?

Posted on Jun 15, 2009

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SOURCE: I have the same problem blue power light blinks 3 times

Ur power board inverter is dead.
U need a new board.

Posted on Aug 20, 2009

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SOURCE: Problem with Hitachi P50H401 Plasma TV - Will not

I have the same model, P50H401 and it developed the same problem two days ago. This set is 2 1/2 years old in service, being purchased in December 2007. The original manufacture date was October 2007.

The set was turned on and operating at the time and then promptly shut down by itself. The front blue LED power indicator began flashing four times in a loop or cycle.

The flashing LED sequence in this instance points to a problem with one of the following boards: PSU, X-Sus, Y-Sus or SDRs (there are two SDR boards, SDR-U and SDR-D, both are connected off of the Y-Sus board on the left hand side of the frame when rear facing). The set shuts down to prevent further damage to other boards or components.

I could power cycle the set but it would shut down after after a few seconds. Power LED would stay solid, I could hear the PS relays switching, and audio would output through the speakers. Then as the screen was just about to illuminate, the entire set would just shutdown. The blue LED would again go into the 4X flashing sequence.

I could not visually detect any signs of severe component damage on the main PS board. The two large electrolytic capacitors which have been mentioned as problematic in other threads seems fine. The where slightly raised on the top surface, but not blistered or completely blown open.

The only indication of component damage that I could detect visually was on one of the small surface mounted ICs on the SDR-U board.

Through reading other posts on this site, I learned that I was able to remove the suspect SDR-U board and then re-power the set. Doing this proved that the PS, X and Y Sus, and the SDR-D boards where o.k. The PS held, and the lower half of the screen illuminated. (I would only do this for as brief a period as required to determine if the the other boards would function and the screen would illuminate. Do not pro-long operation in this state so as to not cause further damage.)

It was somewhat difficult to locate the correct SDR-U board. My local service rep did not have one in stock, and the Canadian parts distributor was also out of stock. They estimated 10 - 14 business days to order one up from the U.S.A. (Hitachi closed their consumer electronics division in Canada back in 2009.)

By chance, I checked with another service rep in an adjacent town. He had a board for the P55. We did a visual comparison on the two boards and determined that it would be compatable.

The easy part was removing the defective SDR-U board and installing the replacement. The hard part was re-alinging the three ribbon tabs into the respective connectors on the SDR board. Be careful with these ribbons. The other end of each is fused to the plasma panel screen, so if you damage them, your screen is rendered useless.

I initially had the same problems as others have posted with having black or gray lines on the screen when the SDR-U was replaced. After gently adjusting the position of the ribbons as they are seated in the connectors, the lines disappeared. This was a slow and frustrating procedure, but it worked, Be patient.






Posted on Jul 03, 2010

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1 Answer

Hitachi Ultravision tv model number: P50S602 When I turn it on the blue power button comes on and the sound comes on for about 2 seconds then the sound turns off and the blue light flashes three times...


Lights flashing is code talk .So call a TV repair guy and ask him good one will tell u what the light code means over phone cause he'll wanna sell u parts or get your business for service .

Jul 12, 2012 | Hitachi P50H401 50 in. Plasma HDTV

2 Answers

Blue light blinks three times then pause...blinks 3 times then pause etc etc.. no audion or picture, just black screen with the blue power light flashing like mentioned


My Hitachi 50" plasma has exactly same problem. I have called local TV service centre, and I was told min. charge is $500 plus $110 for pickup. It is out of the warranty now (almost 3 years old), I really don't know what to do.

Jan 15, 2011 | Hitachi P50H401 50 in. Plasma HDTV

2 Answers

Blue light blinks three times


very common issue for these sets! p50h401 and p50s601 are almost the same.

for more info on this set please check out http://www.hometheatershack.com/forums/hitachi/38229-hitachi-p50h401-led-flashes-3-times.html
if will tell you how to trouble shoot this tv. these tv's are known for two caps in the power supply to go bad and they need replaced then you have to test the sdr buffer boards if they are bad you need replacement boards or you can send them off to be repaired.( Repairing the buffer boards is a lot less then replacing them ) the link for the repair guy is on the page. this guy also sells the repair on ebay but if you contact him directly i beleave the price is lower. just tell him you were send over by home theater shack.

Sep 19, 2010 | Hitachi Ultravision P50S601 50 in. Plasma...

1 Answer

The blue power light just blinks and the screen does not come on.


turn tv on and screen does not come on power blue light blinks three times.

Jan 22, 2010 | Hitachi P50H401 50 in. Plasma HDTV

1 Answer

I have the same problem blue power light blinks 3 times


Ur power board inverter is dead.
U need a new board.

Jul 17, 2009 | Hitachi P50H401 50 in. Plasma HDTV

1 Answer

No picture no sound,


Can you tell me how many times it blinks before each pause?

Nov 16, 2008 | Hitachi P50H401 50 in. Plasma HDTV

1 Answer

Blue power light blinking 3 times


I am having the same problem, what was the solution to this problem? And how much did it cost to fix it?

Jun 21, 2008 | Hitachi P50T501 50 in. Plasma HDTV

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