i have a w3201c plasma dell tv the blue light turns on when i turn it on but the screen stays blank. the blue light that turns on stays on steady no blinking or anything. I could hear it turn on but nothing happens. Thank you
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Hello, I'm new to the group and to trying to repair a LCD TV. During the past few years, I've been collecting/repairing/restoring vintage personal computers (Commodore, Apple II, Atari, TRS-80, Texas Instruments, and Timex Sinclair). This has been my retirement hobby. Now I've gotten interested in trying to repair a LCD TV that I have and used regularly when working on vintage computers.
The LCD I'm working on is a Insignia NS-LCD019. I've downloaded the service manual that I could find, but it must be a different revision since not too many items in the service manual match the TV... -
proscan 40ld45q
Have tried published resets with no help. (unplug for 10, push on-off for 30, push menu and vol +, etc.)
After being plugged in, red light comes on. Push power button and blue light comes on for ~five seconds then goes out. Power button does not turn the unit on a second time - have to unplug/re-plug before power button will try to start with blue light.
No sound, no picture (used flashlight test).
No bulging cap, no burn spots, no burn smells, nothing visual (cold joints/breaks/bugs).
Digital voltmeter;... -
My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?
Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?
My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
I have tried multiple different Dell power adapters. My Dell... -
Hello guys i have a dell laptop , a newer one but doesnt power on.
When i plug in the charger i get a white light for a sec then 2 fast blinks
I did notice it was getting 19v on drain but not on other side nor on gate..
I did notice many mosfets Source's are measuring 1 ohm to ground and some around 70ohms, idk if thats normal?
what would be the next step?
Ps i see no water damage or anything unordinary , board looks new.... -
Hi everyone, I have a Nintendo 2DS XL that shows the orange charging light when plugged in, but nothing happens when I press the power button — no blue light, no screen, no sound.
Here's what I've observed:
All ribbon cables are properly connected
Battery is present and in good condition
No reaction even with screens disconnected
There's a visible burn mark / overheating sign on the metal shield, right above the CPU
I’m suspecting an issue with the CPU, PMIC, NAND, or a power...