Hitachi 43UWX10B 43" Rear Projection Television Logo

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Question about Hitachi 43UWX10B 43" Rear Projection Television

2 Answers

Hitachi 43UWX10B No Picture No Sound

The DP23 light on the deflection/power PWB is not coming on. The LED on the supply is on. All other LEDS on the pcb are lit. Any ideas on which component on the 5v stand bye I should be looking at first?

Posted by Wabbit411 on

  • 1 more comment 
  • Wabbit411 Mar 29, 2008

    Multi meterat home. Ive worked in a computer repair and done some board repair on monitor and boards. If I need to while Im on VAC this week I can go to the shop and use there scope and other tools.

  • Wabbit411 Mar 29, 2008

    Thanks! Im just starting to look at the manual. Hopefully it will point me in the right direction. Ive done alot of resoldering on cold joints but that didn't help.So now I guess Im looking for a something blown or out of tolerance.

  • Wabbit411 Mar 31, 2008

    Looks like Ill need to find a 43UWX10b service manual because the trouble shooting part doesn't match up.There a couple parts it tells me to look at that aren't there.

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2 Answers

Benjamin Patri

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

Here is the service manual if you want a look

Posted on Mar 29, 2008

  • 2 more comments 
  • Benjamin Patri
    Benjamin Patri Mar 29, 2008

    Or I should say similar to your model but it should work, pages in the 50s may help the most

  • Benjamin Patri
    Benjamin Patri Mar 29, 2008

    Well it sounds like you will have this running in no time then, anyway if you need any further help or want us to clarify anything, please let me know, but having the service manual should help you out a lot, a user guide is nothing compared to the service manual,

    Good luck

  • Benjamin Patri
    Benjamin Patri Mar 29, 2008

    sounds good, let me know if you need any additional help

  • Benjamin Patri
    Benjamin Patri Mar 31, 2008

    sorry I couldn't be more help but I can't find a free manual and don't have access to one, you should be able to get one for under $15 for one, just don't pay more than that but at least you will save money by doing it yourself, if you need any additional help, please let me know. Thank you

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Anonymous

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Hmmm...well...you have diagnostic tools

Posted on Mar 29, 2008

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Hitachi 43UWX10B - LED Light on constantly on will not go off

Hi,

Power relay is defective. All contacts are not opening when power is removed. Located on small power supply board, upper rt side.
s 901 part# FJ00142 should be under $10, do a google search with part number and 50 sources will appear.

easyab

s901, FJ00142
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I have a Hitachi 57f59A and the power went out and came back on but the tv did not come back on. There is no power light or picture and when hit power it clicks

Dead Set. Power supply chirps. E947 on the 115V and E943 on the 28V line is open.
Cause: Check all the fuses on the deflection pwb. Found E943 open and had a shorted 28V line on the Signal PWB. Check IK01, IK02 also caps, CK17, CK18, CK19, CK20 for short.
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Hitachi 43UWX10B: Power light blinks continuously on and off, no picture

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.
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Hitachi 51UWX20B Projection TV

Hitachi part number JT23051 is Obsolete the new part number for the Deflection Convergence PWB is JT23051R its available from Hitachi for around 350.00
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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.
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43UWX10B

It's not coming on probably because the safety sees a short and is sparing you smoke damage. Double check to make sure any solder didn't cross or drop to another set of solder joints on the bottom. You might be able to get a service manual from here that could tell you more about the lights -> https://www.manualsparadise.com/ShowProductsForModel.do?model=M22931911
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No power

common fault on hitachi is the -26 volt supply is bad,ther should be voltage markings near or around the led's,find the b+ one thats missing or being pulled down
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Hitachi 43UWX10B No Picture No Sound

Check the stand-by circuit to the main pcb for the keyboard control. If no voltage present, check the 5v regulator in the main supply. If you are not seeing the LED on your supply up, it's likely you do not have the 5v stand-by.
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