Question about Hitachi 43UWX10B 43" Rear Projection Television

1 Answer

Hitachi 43UWX10B: Power light blinks continuously on and off, no picture

The green led on the power supply board is on.
The red led on the deflection board is on.
The -28V green led on the deflection board is on.
The +28V green led on the deflection board blinks.
The other +28V green led (closer to the edge of the deflection board) is off.
The +9V green led on the deflection board blinks.

Any ideas? Thanks!
Andy

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  • mormonmom88 Nov 03, 2008

    the red power light blinks and the tv does not turn on.

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1 Answer

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  • Hitachi Master
  • 73,619 Answers

Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electro-medical.blogspot.com/
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.

Posted on Aug 08, 2017

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Posted on Jan 02, 2017

SOURCE: Flashing Power Light

Located in the power supply section of the unit. There is a pico fuse (soldered in fuse) that opens up and there is no high voltage. The second click that you hear when the set is turned on. This can be diagnosed With set unplugged, with an ohm meter with a simple continuity test. I think the pico fuse is 4 amps , I am not absolutely sure. I have seen this problem in that unit previously. There is also a convergence problem that occurs with that set. Scrivitron.

Posted on Jun 29, 2007

IB4G2008
  • 3587 Answers

SOURCE: Hitachi 43UWX10B No Picture No Sound

hmmm...well...you have diagnostic tools

Posted on Mar 29, 2008

bestdarngood
  • 3037 Answers

SOURCE: Hitachi 43UWX10B No Picture No Sound

http://www.pdmnetworks.com/play/servicemanual.pdf

Here is the service manual if you want a look

Posted on Mar 29, 2008

  • 927 Answers

SOURCE: DP23 LED not lit on deflection board no picture on tv

Good Day, Gil;
Your problem is in deflection circuit (115+v) check these: FP05, DP15, Q777, QH01, TH01, T701, etc. BUT suspect C707 1k pfd, 2kv, and check all the pico fuses (brown) 2" to the right of cap. Good Luck, big IRISH.

Posted on Sep 01, 2008

  • 231 Answers

SOURCE: The three projectors are not lit Posted by

needs new lamp

Posted on Apr 13, 2010

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Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.

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Good Day, Gil;
Your problem is in deflection circuit (115+v) check these: FP05, DP15, Q777, QH01, TH01, T701, etc. BUT suspect C707 1k pfd, 2kv, and check all the pico fuses (brown) 2" to the right of cap. Good Luck, big IRISH.

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Located in the power supply section of the unit. There is a pico fuse (soldered in fuse) that opens up and there is no high voltage. The second click that you hear when the set is turned on. This can be diagnosed With set unplugged, with an ohm meter with a simple continuity test. I think the pico fuse is 4 amps , I am not absolutely sure. I have seen this problem in that unit previously. There is also a convergence problem that occurs with that set. Scrivitron.

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