Announcement

Collapse
No announcement yet.

User Profile

Collapse

Profile Sidebar

Collapse
Avatar
nickhog
Member
Last Activity: 09-13-2021, 01:14 PM
Joined: 12-22-2015
Location: beaufort,sc
  •  
  • Filter
  • Time
  • Show
  • Source
Clear All
new posts
  • nickhog
    replied to Hanns-G HZ281HPB Black Screen
    in Troubleshooting Computer Displays
    Re: Hanns-G HZ281HPB Black Screen

    Since I had recently tossed out all my old PC powersupplies, I had to resort to buying a diode . I used a new MBR10100CT and, with no place to buy locally, I had to order it. 45 cents for the diode and $6 for shipping... I got 2 just in case... So, Once again... Have one on me and thanks for your support...
    See more | Go to post

    Leave a comment:

  • nickhog
    replied to Hanns-G HZ281HPB Black Screen
    in Troubleshooting Computer Displays
    Re: Hanns-G HZ281HPB Black Screen

    Welllll, Welcome back Badcaps...!!!!

    momaka and budm,
    You can put another notch in your guns... Thanks to your help and suggestions, I'm sitting here looking at my beloved Hanns-G again. It was D210. Replaced it and now all is fine again. I hope this thread helps others who want to save a monitor...

    Thanks again... Have one on me....


    nickhog out......
    See more | Go to post

    Leave a comment:

  • nickhog
    replied to Hanns-G HZ281HPB Black Screen
    in Troubleshooting Computer Displays
    Re: Hanns-G HZ281HPB Black Screen

    Well, I had couple old PC supplies but I just recently cleaned up... You know that that goes... Save it and you'll never need it, throw it away and you'll need it tomorrow.. Looks like about 45 cents for the diode and $6.00 shipping... I'll get one asap and get back with you on the results...

    Thanks again for hangin with me....
    See more | Go to post

    Leave a comment:

  • nickhog
    replied to Hanns-G HZ281HPB Black Screen
    in Troubleshooting Computer Displays
    Re: Hanns-G HZ281HPB Black Screen

    budm, will try to get some better pictures later tonight or tomorrow.

    Meantime, momaka, I pulled fuse, no change. Fulled d-210, d-220, d-720

    d210 = mbr10100ct = dual diode common cathode - one side shorted
    d220 = mbr20450tg =not marked checks like dual diode and OK
    d720 = mbr2060ct = dual diode common cathode - checks OK

    For starters, looks like I need a MBR10100CT....
    See more | Go to post
    Last edited by nickhog; 01-08-2016, 03:13 PM.

    Leave a comment:

  • nickhog
    replied to Hanns-G HZ281HPB Black Screen
    in Troubleshooting Computer Displays
    Re: Hanns-G HZ281HPB Black Screen

    I follow the tech info very clearly... Great info... You are correct about pin 4, it is labeled ADJ. Here's what I got (only checked DC volts)..

    Plugged in, power off:
    only pins with voltage are ;
    Pin 4 = 5.2v
    Pin 11 = 3.12v

    Power ON, Video input'
    Pin 2 =5.04V
    Pin 4 = 5.18v
    Pin 5 = 0.69v
    Pin 6 = 0.69v
    Pin 9 = 0v
    Pin 10 = 0v
    Pin 11 = 2.95v
    Pin 12 = 5.0v

    So, looks like we're telling it to turn but it ain't listening...
    See more | Go to post

    Leave a comment:

  • nickhog
    replied to Hanns-G HZ281HPB Black Screen
    in Troubleshooting Computer Displays
    Re: Hanns-G HZ281HPB Black Screen

    Re-checked for flicker/flash and did flashlight test in dark. No flicker/flash and no video visible under flashlight..
    See more | Go to post

    Leave a comment:

  • nickhog
    replied to Hanns-G HZ281HPB Black Screen
    in Troubleshooting Computer Displays
    Re: Hanns-G HZ281HPB Black Screen

    No flicker/flash and I don't see any image with the flashlight. It's a bright sunny day here so I'll double check this in the dark tonight. Fuses are;

    F720 = 5A/250v
    F211 = 4A/250v
    F220 = 5A/250v

    All measure good in the circuit with Ohm meter. Didn't do any voltage checks because I can't get to the bottom of the board with the pink wired connectors connected.

    I do appreciate your time. Would love to save this monitor since I can't replace it. Everything today is wide screen format and nothing...
    See more | Go to post

    Leave a comment:

  • nickhog
    replied to Hanns-G HZ281HPB Black Screen
    in Troubleshooting Computer Displays
    Re: Hanns-G HZ281HPB Black Screen

    Sure would like to get my eyes on a set of schematics for this monitor...
    See more | Go to post

    Leave a comment:

  • nickhog
    replied to HANNS G HZ281 White Screen
    in Troubleshooting Computer Displays
    Re: HANNS G HZ281 White Screen

    New thread started as requested... Hanns-G HZ281HPB Black Screen
    See more | Go to post

    Leave a comment:

  • nickhog
    started a topic Hanns-G HZ281HPB Black Screen
    in Troubleshooting Computer Displays

    Hanns-G HZ281HPB Black Screen

    From my Original post
    "I have a HZ281 with opposite problem. My screen is black. Was working fine, selected a new web page, screen went black. Power light comes on and off with power switch, Power light turns green with either a VGA or DVI video source connected but screen stays black. No visible of bad caps, no burnt components or boards. Any thoughts or suggestions appreciated.."

    My pictures aren't as good as those posted in the White Screen thread. Looks to me that most of my boards are the same as those. Hopefully you can help me identify what each board is...
    See more | Go to post
  • nickhog
    replied to HANNS G HZ281 White Screen
    in Troubleshooting Computer Displays
    Re: HANNS G HZ281 White Screen

    I have a HZ281 with opposite problem. My screen is black. Was working fine, selected a new web page, screen went black. Power light comes on and off with power switch, Power light turns green with either a VGA or DVI video source connected but screen stays black. No visible of bad caps, no burnt components or boards. Any thoughts or suggestions appreciated..
    See more | Go to post

    Leave a comment:

No activity results to display
Show More
Working...
X