I am repairing Panasonic su-htb500 recently, the main power supply is not powered, the standby power supply is 5.84V, I replaced the capacitor C5726 on the main board of the power supply, and now I find that the output voltage of ic700 is only 0.4v, and the main power supply still can't work, can anyone provide a repair In addition, I also found a problem. The pins of IC700 are different from the common ones, and the information cannot be found (the part number is C0CBABC00117). Does anyone know what type of IC to use instead, thank you!
-
Hi.
I´ve been given an old CRT from Panasonic, it´s almost new, it was storaged and almost not used since bought.
It is imaculate inside, almost no dust or debris inside.
The picture is good, but I have no left sound channel, I tried all the inputs, outputs, even on headphone jack. In AV2 I hear sound from right channel but no image, on tv tuner only right sound channel, the same for AV1.
So I started to look for a service manual, I found one, and started from the beginning.
Most of the times the caps are the problem so I orderer all the caps for all boards,... -
so i took out one of my spare gigabyte ep35-ds3r mobos from storage for use to do some cpu, ram and video card testing of stuff i bought from ebay and got for free from momaka. he bought 50 e8400 cpus for cheap from ebay some years ago and i decided to help him relieve him of some of his supply since he had waaaay too many!!
what did we say about hoarding too much stuff and depriving others of them?! *cough* socialism *cough* lol! 
i had to blow some dust off the board and heatsinks with the datavac as i didnt clean it up before putting it in storage. after finishing... -
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... -
Hi everyone,
I've got this Panasonic TV here with the following symptoms:
* Standby Light is solid RED
* Turning on using the Button on the TV (long press) would change LED to blinking GREEN
* After a couple of seconds, LED is solid GREEN and without picture or sound.
I've tried a couple of things before tearing it apart:
* Resetting using various combinations of powerbutton and volume buttons pressing down while booting.
* Activating Self Check according to service manual using IR Blaster (we have no remote unfortunately)... -
Hello to the forum.
My name is Christos, I am new to the forum here and i am posting from Greece.
So i have this old German sound card from Marian, called Trace Alpha. To be exact i have 2 of them and i use them professionally for my small FM radio station here. The first one works like a charm, but the second one does not work at all.
To be more specific in the same exact pc with windows 7 (i even tried 32bit) the one works while the other doesn't.
So i tried asking for a schematic from the company and they would not give me one. Instead they...
Comment