Delta DPS-214CP PSU no standby (Grundig TV)

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Dannyx
    CertifiedAxhole
    • Aug 2016
    • 3912
    • Romania

    #21
    Re: Delta DPS-214CP PSU no standby (Grundig TV)

    Originally posted by dick_barton
    With D902 cathode lifted what voltage does VCC pin of DDA010 reach. The internal charge pump should be outputting a voltage to charge C903. The internal charging circuit then switches off when C903 voltage reaches => 10.5V typically.

    Do you have the B+ voltage on pins 4 & 5 of the DDA010
    Nothing on the VCC pin and I believe I do get 325v on pin 5 Drain (but I'll double check tmmoz)
    Wattevah...

    Comment

    Related Topics

    Collapse

    • Document Archive
      MSI Delta DELTA 15 A5EFK-008 Notebook 15 Specification for Upgrade or Repair
      by Document Archive
      This specification for the MSI Delta DELTA 15 A5EFK-008 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the DELTA 15 A5EFK-008 boardview and DELTA 15 A5EFK-008 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet,...
      09-07-2024, 03:40 AM
    • Junkrepair
      Calculating ESR from tan delta -- tan delta's dependence on capacitance
      by Junkrepair
      I'm finally recapping my Soyo K7VX6 motherboard (aka KT600 Dragon Ultra) and replacing Sacon SZ-series caps. The Sacon SZ datasheet provides a spec for tan delta, but not for ESR, while the candidate replacement caps are specified in terms of ESR.

      I found this nice little description of the conversion:

      Calculating capacitor ESR from Tan(delta)
      https://forum.digikey.com/t/calculat...-from-tan/2633

      It mentions that a general spec for tan delta has to be adjusted for the specific capacitance before plugging tan delta into the formula...
      06-12-2023, 02:45 PM
    • LEECH666
      Grundig Vision 9 37 9880 T USB (Chassis SR) TV Repair Help - Distorted Subwoofer Sound and overall weird sound waveforms
      by LEECH666
      Good day ladies and gentleman!

      I am currently trying to repair a Grundig Vision 9 37 9880 T USB LCD TV for a friend that has a weird audio problem. Basically everything works fine except for the heavily distorted sound when the Subwoofer module is connected and there is a buzzing sound coming from the PSU PCB.

      This seems to be a rather rare TV so there is not much prior on topic help to be found however a service manual is available at the usual sources (Electro Tanya i.e.).

      I think the PSU buzzing comes from one of the coils near the bridge rectifier but...
      01-19-2024, 05:46 PM
    • Document Archive
      MSI Delta 15 A5EFK-081AU Notebook 15 Specification for Upgrade or Repair
      by Document Archive
      This specification for the MSI Delta 15 A5EFK-081AU Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 15 A5EFK-081AU boardview and 15 A5EFK-081AU schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...
      09-07-2024, 06:11 AM
    • Document Archive
      MSI Delta 15 A5EFK-046UK Notebook 15 Specification for Upgrade or Repair
      by Document Archive
      This specification for the MSI Delta 15 A5EFK-046UK Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 15 A5EFK-046UK boardview and 15 A5EFK-046UK schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...
      09-07-2024, 05:50 AM
    • Loading...
    • No more items.
    Working...