Question about Hitachi 50UX58B 50" Rear Projection Television

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Hitachi Ultra Vision 50UX58B, 1999 Get a few green lights inside on powerup for about 3 seconds, then everything is dead. Any suggestions?

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  • Hitachi Master
  • 19,396 Answers

Hi.

Those light are service LEDs (D940-D946). They indicate voltages from PSU. If they go off it is usually a faulty PSU not giving out power. If they turn red, then there is incorrect voltage.

Test the power board. This is one of most common failures.
PSU is tested reading voltages. If the TV is on forced standby (protect mode) only the low voltage will be on.
Before testing check the state of PSU capacitors (replace C707 1000 pfd cap and check the caps nearby). Often it is possible to spot at a glance bulged or leaky capacitors. Check also the protector e994 , if it is open, then replace it.

Here service manual with schematics for $9: Tv Repair Kits :: Service Manuals :: Hitachi :: 50UX58B





Posted on Jul 14, 2010

  • bhmason Jul 14, 2010

    The TV is about 10 years old, is it worth fixing?

  • Ginko
    Ginko Jul 14, 2010

    Hi.

    If the problem is a defective PSU, then the cost of capacitors and protector will be abot $10. If you are a technician or an experienced DIYer, then the TV is surely worth repairing.

    If you have to pay a technician the labor will cost $80/$120, and the tech usually charges parts a bit more. The average price will be $150/$200.

    Same if problem is convergence.

    If problem is not PSU or convergence, then the TV is not worth repairing. You do not replace an optical group or another expensive part on this set.

    As said in your case the problem is likely PSU.

    Regards.


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It is fixable. Contact the service center for assitance.

Apr 06, 2010 | Hitachi 50UX58B 50" Rear Projection...

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Have a 50VS69A the blue light comes on then a second later the two red lights flash in sequence from top to bottom.


If you have Hitachi model number 50UX58B, 60UX58B, 50UX58K, 60UX58K, 50SBX78B or 60SBX78B and you have the following symptoms you may want to grab a repair kit from www.TvRepairKits.com. They have put together a kit that includes the parts and instructions to fix these models. This is a fairly common problem with the above model numbers. It is typically caused by a blown capacitor and pico fuse. Again, you can get a kit from the above address.
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Primary Symptom: No Audio or Video. Power light will come on briefly then shut off.
Other Possible Symptoms : The green LEDs on the circuit board light up for a few seconds then turn off.

Hope this helps,

Mar 08, 2009 | Hitachi 50UX58B 50" Rear Projection...

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If you have Hitachi model number 50UX58B, 60UX58B, 50UX58K, 60UX58K, 50SBX78B or 60SBX78B and you have the following symptoms you may want to grab a repair kit from www.TvRepairKits.com. They have put together a kit that includes the parts and instructions to fix these models. This is a fairly common problem with the above model numbers. It is typically caused by a blown capacitor and pico fuse. Again, you can get a kit from the above address. 

Here are the symptoms...

Primary Symptom: No Audio or Video. Power light will come on briefly then shut off.
Other Possible Symptoms : The green LEDs on the circuit board light up for a few seconds then turn off.

Hope this helps,

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If you have Hitachi model number 50UX58B, 60UX58B, 50UX58K, 60UX58K, 50SBX78B or 60SBX78B and you have the following symptoms you may want to grab a repair kit from www.TvRepairKits.com. They have put together a kit that includes the parts and instructions to fix these models. This is a fairly common problem with the above model numbers. It is typically caused by a blown capacitor and pico fuse. Again, you can get a kit from the above address. 
Here are the symptoms...

Primary Symptom: No Audio or Video. Power light will come on briefly then shut off.
Other Possible Symptoms : The green LEDs on the circuit board light up for a few seconds then turn off.

Hope this helps,

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Aug 14, 2007 | Hitachi 50UX58B 50" Rear Projection...

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If you have Hitachi model number 50UX58B, 60UX58B, 50UX58K, 60UX58K, 50SBX78B or 60SBX78B and you have the following symptoms you may want to grab a repair kit from www.TvRepairKits.com. They have put together a kit that includes the parts and instructions to fix these models. This is a fairly common problem with the above model numbers. It is typically caused by a blown capacitor and pico fuse. Again, you can get a kit from the above address. 
Here are the symptoms...

Primary Symptom: No Audio or Video. Power light will come on briefly then shut off.
Other Possible Symptoms : The green LEDs on the circuit board light up for a few seconds then turn off.

Hope this helps,

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HELLO I WOULD REPLACE THE HOLE BOARD.!!! AND GO FROM THERE. HOPE THIS HELP'S YOU.!!! "GOOD LUCK"

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