Sharp LC-60TQ15U Main Board Replacement

Collapse
X
Collapse
+ More Options
Posts
 
  • Time
  • Show
Clear All
new posts
  • mdneilson
    New Member
    • Feb 2014
    • 4
    • United States

    #1

    Sharp LC-60TQ15U Main Board Replacement

    I have a TV that has no image or sound. It gives a blink code of 1 short, 3 long. The service manual says: Initial communication from the main CPU is not
    received. (Request for the monitor model No. is not received.) → Communication line failure or main CPU start-up failure.

    1) Is there any troubleshooting I can do to possibly replace a single component or check the cables before ordering a new main board? (visually, the components look fine)

    2) Does anyone know where I can find the files to update the software of a used board to fit my model (there are 6 other models that use the same board)?

Related Topics

Collapse

  • jb_Bak
    Sony xbr-65x900c main board issues?
    by jb_Bak
    Hey guys great forum glad to have found it. I bought a Sony XBR 65X900C cheaply because it didn't work. No signs of life at all not even a light/led. All I hear is a brief high voltage sound when I throw the power to it.

    Didn't see any obvious signs of damage so right away started checking voltages. This is what I see:
    Power Board Connector that goes to Main board
    CN6401
    Pin 01 NC
    Pin 02 NC
    Pin 03 "BL_ON": 0V
    Pin 04 "N/C"
    Pin 05 "STBY 3.3V": 3.5V
    Pin 06 "GND": N/C
    Pin 07 "AC_OFF"...
    09-27-2021, 04:52 PM
  • JDC
    (SOLVED) - ONN 100012588 No Power, Then Rebooting After Main Board Change
    by JDC
    ONN 100012588
    Issue: No Power, Then Rebooting After Main Board Change

    Short answer: replace main board and power board
    Technical answer: replace main board and Q306 & Q307 on power board.

    Long answer:

    TV wouldn't turn on. Power switch was fine which means the main board isn't processing the power on signal. Replaced main board. TV turns on now but randomly reboots. Bad main board? EEPROM? Tried to pull main board and got a shock touching the corner of the board. That's weird. C334 (450V 10uf) capacitor is still holding a high charge....
    07-15-2022, 07:39 AM
  • 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...
    11-22-2024, 01:46 PM
  • cheeky2
    Is it possible to upgrade from a Vestel 17MB97 main board to a 17MB110 Main board?
    by cheeky2
    I suppose the real question is whether the existing pinouts from ether a 17IPS71 psu are cross compatible with a 17IPS12 psu? If they are then the exchange of the main boards should have no issues providing the screen is compatible with both main boards. Obviously you can change the screen configurations easily enough (providing you have the correct files) for the main board. Why may you ask would I do this? Well a lot of the smart features are no longer working on a Hitachi 48HBT62U main board I wish to give it a new lease of life!
    Obviously the same LVDS connector for the screen connection...
    05-25-2024, 03:27 AM
  • Asraf Atb
    Help Needed: Samsung UE55MU8000 Dead - Possible Main Board Issue
    by Asraf Atb
    Hi everyone,

    Im looking for some advice regarding my Samsung UE55MU8000 TV with main board model BN94-11606C. The TV suddenly stopped turning on and now shows no signs of life at all not even the standby light at the bottom.

    Initially, I suspected an issue with the PSU, so I took it to a repair center. They tested it and confirmed that the PSU works perfectly, even on other TVs. Based on that, I started investigating the main board.

    I disconnected the main board from the PSU, and the backlight turned on, which seems to confirm the main board is the issue....
    01-27-2025, 05:02 PM
  • Loading...
  • No more items.
Working...