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Good morming!I have a Hitachi Le39e316 that backlight is on for 2 seconds and get off. Where I can find schematic for the power supply model number CEM842A. I need pin voltage

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  • Hitachi Master
  • 52,795 Answers

Request the schematic diagram from Hitachi.

Posted on Apr 30, 2019

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6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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  • 46 Answers

SOURCE: Schematics forpower supply

Go to this site: http://pinouts.ru/pin_Power.shtml.

It should have the pinout info you need. If you're intending to fix the unit, you can get a replacement (with more power) at this site for less than $20, including shipping: http://www.geeks.com/.

Posted on Apr 11, 2008

  • 4234 Answers

SOURCE: Model CF1926A TV with insufficient

I think you missed one cap. Look for another 1ufd cap close to the jungle chip. It will have the circuit designation in the 300's like the others in the vertical circuit. It is just not located close by. I think that one will fix it.I don't have the service data with me so I can't give you the exact designation.
Dan

Posted on Jun 04, 2008

Geekman
  • 32281 Answers

SOURCE: Power supply for Targus 4 hub usb 2

Most USB hubs do not need an external power supply, except when a connected USB device draws more power than the computer/laptop USB port can supply. In this case an external power supply will need to be connected to the USB hub.
Normally this would be a 5 volt power supply, but make sure the polarity on the connector matches the power connector on the hub, check the label on the hub, sometimes it states to power requirements of the hub as well as the polarity on the connector. Normally the pin on the hub's power connector is positive (ie. +5V)

Posted on Nov 13, 2008

  • 111 Answers

SOURCE: AA8 DuraMAX won't power up

if you are sure that the ps is ok replace the motherboard

Posted on Mar 21, 2009

zabrinaliang
  • 15 Answers

SOURCE: need a schematic for achme power supply model am630bs20s

Do NOT open a power supply!!!! Proceed with caution: When finding a new power supply, make sure the voltage is the same and the amperage is less than or equal to the original power supply.

Posted on Dec 08, 2009

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1 Answer

Blue light comes on but there is no picture, hitachi 52” tv


What model TV is this? Is it a rear projection or LCD or Plasma?

If its projection its probably time for a new bulb. If its LCD or Plasma it can be power supply issues, backlight issues, etc. But without the model number i can't give any better info then that.

Jan 11, 2018 | Computers & Internet

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Sanyo DP46142 TV comes on for approximately 30 seconds and then screen goes black. Power LED stays on.


Sounds like a backlight problem to me. If you input a signal to the HDMI or Composite input and then it goes black have you tried taking a flashlight to the screen to see if the picture is still there but just dark? That would indicate a backlight issue. That model appears to be an LED edge lit backlight, so if the picture is still there after going black your going to have to trace out the backlight circuit and see whats going on. Usually with LED backlighting if it comes on at all then the LED's are good, its just the driver supply thats failing to keep them on. Some TV's have a small separate board that provides the backlight control, but i suspect with this model its on the power supply board and not the motherboard. Have you checked that board? It could be bad caps on the power supply board, check the voltages to the backlighting when it lights up and then when it goes dark. It could just be some failed capacitors on the power supply causing that voltage rail to drop off.

May 04, 2017 | Sanyo Televison & Video

2 Answers

When I turn my TV on there is sound, but, the picture vanishes after a couple of seconds. Why?


The backlight inverter is what powers the screen to "light up." You will need to check your power supply for the proper voltages going to the backlight inverter. If those all check out ok, then you need to replace your inverter to get your image back. You can find a new inverter by searching "inverter + model number of your tv.



Please rate if this helped :)

Apr 04, 2011 | LG Televison & Video

1 Answer

I have a hitachi 65SWX20B projection TV. When I power it on, I get no picture, no sound, and on one of the circuit boards, an LED (D967) blinks dimly (1/2 second on, 1/2 second off). A soft click is...


If the board with the blinking LED has larger than average parts on it, it is likely the main power supply and the clicking may be from a relay that is connecting and then, disconnecting the AC. With no video or audio, the main power supply has likely failed. Contact Hitachi service to ask how much the repair or replacement cost of the supply is. Make sure you have all involved model numbers handy; the one from your set with the mfr. date if present and if you can find an assembly number on the power supply itself. it may save you time and errors. These boards are often simply plugged into other assemblies with dissimilar plugs but if you decide to DIY, take some snapshots of the cabling to be on the safe side.

Mar 11, 2011 | Hitachi 65SWX20B 65" Rear Projection...

2 Answers

55HDS69 Power Supply problem


I have found that the power supply is usually good, it's the other boards that tell it to shut down within a second. There are input called Vsego and VSago that tell the power supply to stay on.

Nov 05, 2008 | Hitachi 55HDS69 55 in. Plasma Television

2 Answers

HP MONITOR


good luck even I cant find schematics online anymore

May 02, 2008 | Computers & Internet

2 Answers

Hitachi 50ux58b



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,

Jan 02, 2007 | Hitachi 50UX58B 50" Rear Projection...

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