Question about Televison & Video
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Posted on Jan 02, 2017
SOURCE: got picture but no display...
Yes it could be the microprocessor IC or the display IC. Im not sure how the display system works as I do not have a schematic for the set. now what I have seen in the past, is that when the flyback blew out it sent a spike pulse way bigger then it should have been and blew out the display sync circuit, and that is built into the microprocessor. Also I have seen in the past, when a main componet such as a flyback transformer is replaced, there are small surface mounted componets near and around the flyback that gets unsoldered. These are ussually small surface mounted type resistors or capacitors that send a pulse to sync up the display output with the horizontal and vertical sweep, or the display would not know where to be and would run so fast along the screen that you would not see it. Check out the horizontal pulses to the micro, or like I said the micro is bad. Good Luck
Posted on Oct 09, 2006
SOURCE: no picture but there was a sound
1.service mode before putting unit into the service mode, check that customer adjustments are in the normal mode. use the reset function in the video adjust menu to ensure customer controls are in thier proper(reset)position. 2.service number selection once in the service mode, press the channel up or channel down button on the remote transmitter or at the set . the service adjustment number will vary in increments of one,from "S01"~"S19" to "M05". select the item you wish to adjust. 3.data number selection press the volume up or down button to adjust the data number. to enter the service mode. while pressing the vol-up and ch-up buttons at once, plug the ac cord into the wall socket and switch on the main power. now the TV set is switched on and enters the service mode. to exit the service mode, shut the television off by pressing the power button.
Posted on Sep 19, 2007
SOURCE: no pictureq
maybe you have defective heater line tru the CRT board! check the heater line if have a 4.5 volts or 4.8 volts! can you see the back of picture tube!?! they lights coming out at the neck of the tube! if no light! you have defective heater supply!
Posted on Oct 16, 2007
SOURCE: Sharp LCD LC-46D64U
Try resetting the TV. Here's how to do it - Unplug the TV's power cable. Keep the Channel Down and Volume Up buttons on the TV pressed and plug the power cable back into the outlet. You will hear a click when you plug it back in if the reset is successful. Hopefully this should restore your video and audio.
Posted on Feb 06, 2008
I also have the akai PDP4273M1 tv with power and no picture and I looked at the power supply board inside and found 1 of the FMG26S chips blown and I am looking into replacing this to see if that does it and if not do a search for SANKEN PSC10165B M and for approx 170.00 you can get a whole new power supply for it and its easy to put in..
Posted on Oct 28, 2008
Tips for a great answer:
Summary of picture settings
The following picture settings can be confi gured. Depending on the
format of the picture source, some picture settings are not available.
• [Auto Picture]: Sets all picture settings to the factory default.
• [Brightness]: Adjusts the intensity and details of dark areas.
• [Contrast]: Adjusts the intensity of bright areas, keeping dark areas
• [Color]: Adjusts color saturation.
• [Tint]: Adjusts the color balance in an image.
• [Sharpness]: Adjusts the level of sharpness in image details.
• [Color Temperature]: To set the color temperature to [Normal],
[Warm] or [Cool].
Summary of sound settings
The following sound settings can be confi gured. Depending on the
sound source, some sound settings are not available.
• [Auto Sound]: Sets all sound settings to the factory default.
• [Equalizer]: Adjusts individual sound frequencies.
• [Virtual Surround Sound]: This selects the modes for more spatial
or surround sound reproduction.
• [Auto Volume Leveling]: Reduces sudden changes in volume, for
example, during commercials or when switching channels. Select
[On] or [Off].
• [TV Speakers]: Select [On] or [Off], or output sound to an
EasyLink compliant device. When [Speakers EasyLink] is selected,
the TV speakers are disabled and TV sound outputs to the speakers
of the compatible EasyLink compliant device. Adjust the volume
using the unit's remote control.
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