NEC 2080UXi PSU board output voltage

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • tjhowse
    New Member
    • Jul 2012
    • 1
    • Australia
    #1

    NEC 2080UXi PSU board output voltage

    Hi all, first time poster.

    I've scored an NEC 2080UXi that had been pillaged for parts and was going into the bin. It includes a nice capacitive touch screen so I'm hoping to get it back up and running. Unfortunately the part that was pillaged was the PSU. I'm trying to track down the output voltage/s from the PSU board such that I can jury-rig some arrangement to get it running.

    Does anyone have any data on the voltages on the pins circled in red on this image: http://i.imgur.com/pj0tf.jpg

    I've got most of them worked out, but I'm wary of turning it on without some corroboration of my deductions. So far I've worked out the following.

    Starting from the top of monitor

    12V
    12V
    12V
    12V
    12V
    GND
    GND
    GND
    GND
    GND
    ?N/C?
    ?5V?
    GND
    N/C

    If anyone has a datasheet on that PSU board, or personal experience, I would love to hear from you

    Thanks,
    tjhowse.
    Last edited by tjhowse; 07-03-2012, 03:24 AM.
    Tags: None
    Previous template Next

    Related Topics

    Collapse
    • m1ch43lzm
      HP Pavilion 15-eh Board DAG7HAMB8F0 - CPU throttling to 0.4GHz (PROCHOT_EXT) and black screen
      by m1ch43lzm
      Hi, this is my personal laptop, which the original board (lets call it Board A) blew up PU8700 (TPS51486), making a hole on the board, i had left the laptop at my desk one day with the battery fully charged and didn't touch it for a week, but when i tried to turn it on it didn't
      Thought the battery was dead, so i plugged in the charger then tried to power on, the power LED blinked once, charged LED still orange, unplugged the charger, plugged in again and I noticed the "magic smoke" smell, so i unplugged the charger, removed the back cover and saw the blown IC (the "magic...
      05-12-2025, 08:37 PM
    • Tynan Dill
      Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?
      by Tynan Dill
      I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

      Upon bringing it home and plugging it up, it showed a standby light.

      I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

      The screen seems to blackout and stay black, but with a flashlight I can see the display.

      With my Playstation 4 connected via HDMI, and running a game I can hear sound.

      Assuming...
      ORIGINAL POWER SUPPLY BOARD
      7 Photos
      11-22-2024, 01:46 PM
    • howardc64
      TCL 55S425 few horizontal lines, potential failure on both side of panel/buffer board
      by howardc64
      All left and right refers to looking from rear of TV (or looking from front with TV upside down)
      • TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
      • Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
      ...
      07-24-2025, 05:17 PM
    • tvguy12012012120
      Zombie Samsung UN55NU6900F dead / no standby voltage - randomly came to life after hours of troubleshooting then died
      by tvguy12012012120
      This is my first attempt at troubleshooting a board like this, I know I could just buy a new board but I'm curious to figure out how this works. I've been testing different components in the evenings this week and I think the problem is with the IC failing to start up for some reason. When the board is plugged in there is no standby voltage.

      Then today it randomly sprung to life like a zombie but shortly died thereafter. I have no idea why it would have done that and its the first time I've seen it running. I discharged capacitors on the board last night, then it was sitting today....
      02-07-2025, 05:13 PM
    • redbaron1007
      Yamaha HTR-3065 No power/No Standby
      by redbaron1007
      I got a Yamaha HTR-3065 on the bench currently that's got a no power/ no standby issue.When I plug it in it draws 0.01A from the wall, the relay for the ac transformer never clicks, there are no standby lights on the front, and pressing the power button does nothing. The fuse was not blown but upon measuring the voltages on the power low voltage power supply board (labeled operation 3 pg 89 in the schematic) they do not match what the schematic says they should be.
      S9 13.7V

      Pwr Ry 0V
      AC Det 9.1V
      Mgnd 0V GND

      The two pins on the transformer for the operation...
      7 Photos
      09-12-2024, 03:04 PM
    • Loading...
    • No more items.
    Working...