Schematic for Nikkai JV-TVC913A

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • bbjunkie
    Badcaps Veteran
    • Dec 2011
    • 301
    #1

    Schematic for Nikkai JV-TVC913A

    Hi Guys

    Got a Nikkai JV-TVC913A I'm seeking a schematic for, it's a 9" mini tv which has 2 seconds to black problem.

    From what I can see I think the sense for the backlight is done in software inside the main ASIC, so want to figure how to fool it into staying powered up.

    Cheers,

    bbj
    Tags: None
    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: Schematic for Nikkai JV-TVC913A

      I do not about the sense for the backlights in this TV, but how is the backlights lamp being driven, there must be some kind of high voltage inverter circuit to drive the CCFL lamp some how.
      Pictures of what we are dealing with?
      Never stop learning
      Basic LCD TV and Monitor troubleshooting guides.
      http://www.badcaps.net/forum/showthr...956#post305956

      Voltage Regulator (LDO) testing:
      http://www.badcaps.net/forum/showthr...999#post300999

      Inverter testing using old CFL:
      http://www.badcaps.net/forum/showthr...er+testing+cfl

      Tear down pictures : Hit the ">" Show Albums and stories" on the left side
      http://s807.photobucket.com/user/budm/library/

      TV Factory reset codes listing:
      http://www.badcaps.net/forum/showthread.php?t=24809

        Comment

        Previous template Next

        Related Topics

        Collapse
        • TinkerTron
          Schematic vs. Reality: Where Are the Resistors on My Sharp Clock Radio? Model FY-70CH
          by TinkerTron
          Hey everyone,

          I'm currently working on a mid-70s Sharp Electronic Digital Clock Radio, Model FY-70CH. I found the service manual online, printed it out, and have been studying it for a while. My main reasons for tackling this are: (1) I want to learn electronics and figured I'd start with something I had on hand, and (2) I want to fix its issues. Right now, the radio sounds awful, has about 5V DC at the speaker terminals, and the alarm time setting doesn't work. But I'm not asking how to fix these problems.

          Instead, here's what's been bugging me so far:
          The schematic...
          3 Photos
          03-06-2025, 02:03 PM
        • atunguyd
          Acer x163w Monitor PSU schematic
          by atunguyd
          Ii wonder if anyone can help me. I have a Acer x163w monitor which is not powering up. The PSU main capacitor's one leg had completly come off - I replaced it but the PSU is still not outputting DC. I found the monitor in questions service manual here on manuals lib but the schematic in there is a completely different - the schematic shows no mosfet to drive the transformer while the one I have does use a mosfet - also the schematic shows only one optocoupler but mine has two.
          The PSU board is labelled FM-20A02-AAA made by APD as per the image below. I am trying to find a schematic for this...
          03-05-2025, 02:08 PM
        • Thetechdude
          MSI Ventus RTX 4080 16G Broadview schematic needed
          by Thetechdude
          Hi guys, I'm working on a MSI Ventus RTX 4080 16G. The GPU has 12v, 5v, however what I assume is the 1.8v rail has 1.1v and what I assume to be PEX is 0v. As you may have guessed already there is no Vmem and no Vcore.

          I have looked around in related forum posts for a schematic so Much appreciated if anyone can share a Broadview schematic.

          Thanks.
          07-15-2025, 11:15 AM
        • ianpoultonknights
          Zenbook Flip 15 UX562AI schematic
          by ianpoultonknights
          Had one of these come in for repair with a blown battery and a WiFi issue, battery has been replaced with genuine battery (twice) and won't take a charge works fine on AC, WiFi issue gone away. Looking for a schematic so I can trace the charger circuit UM562F is only one I can find, this is the 562AI model.Had a unit come in for repair — 562AI model — with a blown battery and WiFi issue. WiFi fault has cleared, but battery won’t charge despite replacing it twice with genuine parts. Device operates fine on AC power. Suspect charger circuit fault. Only schematic I’ve found so far is for...
          06-26-2025, 02:41 PM
        • Adv10119
          Need help please! schematic for LA-9982P rev 3.0 (A02)
          by Adv10119
          Please help, i need schematic diagram for Dell inspiron 3537 board LA-9982P rev 3.0 (A02). Specific for A02.

          I have a one beep with no display problem. Did reprogrammed the bios but no luck. i tried to troubleshoot using rev 3.0 (A08) version schematic and boardview but there's components/rails in the schematic that is none in my actual board, this is why I'm having problem checking every power rail needed if ok. attached is the photo of my actual board.

          I'm not sure if A02 and A08 is really different schematic version from each other, but I have to try....
          01-31-2024, 01:18 AM
        • Loading...
        • No more items.
        Working...