"FAIL" Wire in TV Powe Supplies

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • ikmpch
    Member
    • Jul 2020
    • 22
    • Canada

    #1

    "FAIL" Wire in TV Powe Supplies

    Can anyone explain the "FAIL" signal in the TV power supply board? How is it generated? Is it generated on the main board or PS board? What function it performs? What is its magnitude?
    Regards,
    KC

Related Topics

Collapse

  • Sus256
    HISENSE 65E7KQ PRO - no boot
    by Sus256
    Hi all!

    HISENSE 65E7KQ PRO
    RSAG7.820.13512 - chassis
    MT9618BAATAB - cpu
    RSAG7.820.12059 - power
    HD650Y3U77 - panel
    KLM8G1GETF - emmc

    The TV does not turn on, the standby indicator is on. All voltages are present.
    Emms is dead. Not readable, not detected.
    Replaced emmc.
    But with another dump there is no launch

    Terminal log

    UART
    <
    AC_ON
    RPMB key is not yet programmed

    HASH1_VERSION=0x00000000 64bit
    E-B
    FDE enabled
    layout pattern onebin by SAR7,0...
    06-01-2025, 02:11 AM
  • cnti
    Samsung 245B PLUS - BN44-00195A - bang and smoke - solved - tips
    by cnti
    Hi.
    BacCaps forum is awesome - thank YOU ALL for sharing knowledge!

    This is about DONG YANG PSU BN44-00195A failiure in Samsung 245BPLUS. It started with bang and smoke from the back of LCD. Downloaded diagram BM44-00192A - a bit different but I will use all parts names from this diagram [and real PSU].
    BIG CAP CP801 had 315V, on standby pin 5,2V. After shorting S_B ON (through 3,3k ohm resistor) 24V and 5,3V were missing, on CP801 was 312V.

    RM801 [real PSU: RM801 - 0,22 ohm 1W] - FAIL
    burned, measured 10M ohm.

    QM801 [real PSU:...
    10-19-2023, 05:33 PM
  • wnlewis
    New wire for my RDE3340 Whirlpool electric range
    by wnlewis
    OK. I got the rocker switch figured out thanks to the good advice on this forum.

    Now I need to figure out the correct wire to go to the switch from the broiler element and from the oven element.

    This is a Whirlpool RDE3340 electric range.

    The common wire on the switch appears to have a high temperature insulating material. I am guessing that both the wire to the broiler and the wire to the oven elements also need relatively high temperature insulation. What do I need to look for? The broiler is rated at about 2400 watts.

    Where may I find parts...
    01-08-2025, 11:21 PM
  • emeskay
    Lenovo Yoga 710 15ISK, 80U00002US battery cable wire broken.
    by emeskay
    We have an Lenovo Yoga 710 15ISK that we use as a secondary laptop. To cut a long story short, around May 2023, while traveling, I connected the laptop into an electrical outlet that was already switched on. Something made a "pfft" sound and the laptop refused to turn on after that. After getting back home, I gave the the laptop for repair to an informal repair person. He replaced the adapter and an internal motherboard part, but after he returned it I noticed that the LCD did not look normal. Essentially, every alternate horizontal line on the screen had gone missing. The laptop was...
    08-06-2024, 07:13 AM
  • technicalspecialist
    Vintage fan repair, copper wire question
    by technicalspecialist
    I currently have a customer's vintage fan on the work bench to repair.
    It uses an induction motor with 4 poles. One of the poles is open.
    I couldn't find the break so i cut off the original wire.
    I have measured the other poles and the resistance is about 28 ohms per pole and I measured the diameter of the wire with my digital calipers and it is 0.35mm in diameter.

    I need to work out how much 0.35mm diameter enamelled copper wire i need to order for it to be 28 ohms. I have used this calculator and it says i need 160.35 metres.

    The enamelled copper...
    03-16-2023, 12:54 PM
  • Loading...
  • No more items.
Working...