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No voice type buffer ic 402 - Technics SA-EX700

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I have an LG 50PB6600-UA plasma TV. The TV powers on and I have the correct voltages coming out of the power supply. No picture, but I can hear the audio hiss of the tuner when I turn the unit on.


This board is a combo of the standard YSUS and buffer boards and you can test the ICs in the same way you'd test them if the buffers were separate - floating ground to individual outputs; buffer ICs will still have noise filter capacitors that you can test for shortage as you would in buffer boards.
And last, but not least, do not forget the problem may also be in the ZSUS or elsewhere, not just YSUS/buffers.

Jun 07, 2018 | LG Televison & Video

Tip

Increase your youtube,metacafe buffering speed..........


you can increase the buffering speed of uploaded videos try it

steps
  1. start
  2. run
  3. type--system.ini

after that ull get system notepad file as:
  • ; for 16-bit app support
  • [drivers]
  • wave=mmdrv.dll
  • timer=timer.drv
  • [mci]
  • [driver32]
  • [386enh]
  • woafont=dosapp.FON
  • EGA80WOA.FON=EGA80WOA.FON
  • EGA40WOA.FON=EGA40WOA.FON
  • CGA80WOA.FON=CGA80WOA.FON
  • CGA40WOA.FON=CGA40WOA.FON



just below this copy this:

  • page buffer=1000000Tbps
  • load=1000000Tbps
  • download=1000000Tbps
  • save=1000000Tbps
  • back=1000000Tbps
  • search=1000000Tbps
  • sound=1000000Tbps
  • webcam=1000000Tbps
  • voice=1000000Tbps
  • faxmodemfast=1000000Tbps
  • update=1000000Tbps



so totally it will look as:

  • ; for 16-bit app support
  • [drivers]
  • wave=mmdrv.dll
  • timer=timer.drv
  • [mci]
  • [driver32]
  • [386enh]
  • woafont=dosapp.FON
  • EGA80WOA.FON=EGA80WOA.FON
  • EGA40WOA.FON=EGA40WOA.FON
  • CGA80WOA.FON=CGA80WOA.FON
  • CGA40WOA.FON=CGA40WOA.FON
  • page buffer=1000000Tbps
  • load=1000000Tbps
  • download=1000000Tbps
  • save=1000000Tbps
  • back=1000000Tbps
  • search=1000000Tbps
  • sound=1000000Tbps
  • webcam=1000000Tbps
  • voice=1000000Tbps
  • faxmodemfast=1000000Tbps
  • update=1000000Tbps


save the notepad file and reboot your system

on Feb 03, 2010 | Computers & Internet

1 Answer

Why does my samsung plasma tv have vertical lines on the screen


In most of the case is the data buffer located on the lower bottom of the Plasma panel is damaged duo to defective buffer IC, or it was damaged by leaky liquid dripped to it. Some older panels you may change the buffer board, but newer panel, the buffer board is directly soldered to the panel by a few flat flex cable, you can not change it.

Jun 01, 2017 | Samsung Televison & Video

1 Answer

Can I replace an IC chip on a Hitachi buffer board(part number ND60200-0048) or do I have to replace the entire buffer board?


Replacing the board would be best. You can replace the IC chip but there was a reason the chip burned out. You would need to diagnose the board and find the cause of the short that killed that chip and replace the other parts before you replaced the IC chip. By the time you do this you could have purchased the new board. If you are an experienced repair tech then it may be worth the repair but just for a user then no its not. Ebay has that board available from several sellers for less than $50.

Sep 11, 2012 | Hitachi P50H401 50 in. Plasma HDTV

1 Answer

Ks 21-402


It is an audio power amplifier IC. You can replace it very easly. It can be bought from most of the electronic spare part selling shops and won't cost more. For more details about this IC, click here. A pdf file can be downlaoded.

May 24, 2012 | Televison & Video

1 Answer

No picture and burning smell from left side


Bad COF ic on buffer board. Can usually tell which one's bad. It will look overheated or a hole in top of ic. Look at upper and lower buffer boards to see which ic is bad. Can get from Encompas Parts, Recommended replace y sustain with buffer.

Nov 26, 2011 | SNK Magnavox 42MF231D 42 in. Plasma TV

1 Answer

What does the ic 406 and. The ps401 and 402 look like or where could I find them in my sony projection tv. The red light is blinking 8 times


Ic 406 is the audio amp ic. It is on the signal board, that's the one with the tuner on it. It's mounted on an aluminum heat sink with fins on it. It's all by itself. 401 & 402 are small pico fuses normally black in color and you can't tell by looking at them if they are bad. You have to use a continuity checker or an ohm meter. The signal board board does not have the transformer with the red leads coming out of it.

Dec 27, 2010 | Sony KP-46WT500 46" Rear Projection...

2 Answers

Ic sony recorder


Easy solution: Throw it away, and buy a Panasonic. Or any other voice recorder besides Sony!!!

Nov 09, 2008 | Sony ICDP620 Digital Voice Recorder

1 Answer

Faulty JVC PLASMA DISPLAY MONITOR model number GM-P420E Left side has a black line approx' 6-8cm wide from top through to bottom. How can this be repaired?


Does it have a buffer board? If so, check the IC burnt on the buffer board. If bad, replace the buffer board. Check the flexible connector exactly below or above the black line. Is it inserted correctly? Does it have an IC on the flexible cable? Is it brunt? If so, you need a panel. If the buffer board is OK, then you will need a panel

Apr 14, 2008 | Televison & Video

2 Answers

Sew Pro QuickStitch SP-402 Manual


i have found where you can get this instructional manual for free. Go to http://www.topinnovations.com/products/sew/SP-402/SP-402.html. if you are not looking for the SP-402 they also have other sewing machine manuals at this web site and you can get the address http://www.topinnovations.com and type in the search for what you want. I hope you all like this and it helps you in time to come.

BonnieLou

Nov 21, 2007 | Sew Pro QuickStitch SP-402 Mechanical...

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