Was wondering if anyone would know were to get service manual for this model. This model has only one main board which has both power & control for all other functions. Thanks in advance.
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Re: Insignia NS-39D310NA15
Not likely to find a service manual. If it attempts to turn on and has no backlight, it is likely to have bad LED backlights. If it doesn't respond to the power button, than possibly a bad eeprom.
https://www.shopjimmy.com/insignia-5...eprom-only.htm
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Hi,
I bought a used Marantz SR5007 and it's giving me some issues that I can't seem to really place. It functions well in most settings, ARC mostly works, it has no issues driving my speakers in any of the digital input modes, but I'm having issues running analog inputs in direct or pure direct mode. For some reason in this mode there's distortion for every volume increment I give it, but once the volume is stable it has no issues. Muting creates a loud pop, switching to another source also causes a pop and so does turning off the amp in that mode. Again, no issue in the digital modes.... -
I have a Sharp LC-40LE431U TV. The symptoms are when plugged in, the control buttons on the right side panel don't seem to want to work correctly. I get a solid red light. But when I press the Power button, it does not power on immediately. I have to keep pressing ALL the side buttons randomly until finally the solid green light is on. Then when pressing each additional button, they do not always respond correctly, if at all. Pressing the Volume button might bring up the Menu, or vise versa. Even if I can get the Menu screen to come up and scroll through the selections, I still cannot select any... -
Hi all, I just want to share the repair of my 60PK550-UA TV set.
The TV set was powering on, just no image. After verification, nothing wrong on the YSus or ZSus boards. Nothing wrong on the main board either.
But I noticed that the LED was not flashing on the Logic Control Board. This is an EBR63450301. The LED is supposed to flash even with all the flat cables disconnected, with only the power cable attached.
All the voltages measured at the electrolytic capacitors on the board were good. From top left to bottom right:
C57: 3.30V
C61:...07-20-2023, 12:38 AM -
Trying to understand which properties of circuit affect triac phase range, is it possible to control near whole period, or it have some limitations - on net found a couple circuit, that claims almost full control, but in the past I build some simple circuit and remember that it do only half of control over triac?...
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Hi all
We have in a HP ProBook 445 G8 laptop with AMD Ryzen 7 CPU. When power is connected the power LED light blinks 5 times then stops. Normally HP laptops will blink this LED 10 times as it does a self test when the AC adaptor is inserted. So there must be some sort of short somewhere.
The battery doesn't charge, and is erratic on the MM voltage. Bench PSU LED pulsates when the battery is connected also. So the fault must be on the charging circuit?
I have gone around the board with a MM and cant find anything
Windows shows the battery fine,...
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