Samsung f6400 red light blinking - Samsung UE40B7020 40 in. LED TV

google to see several posts on projection tv red light blinking from several different manufactures (sony; toshiba; samsung; philips; you name it) and several models.

http://www.avsforum.com/forum/63-rear-projection-units/975795-toshiba-65h81-went-black-blinking-red-light-help.html

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. Viewing it in "Mosaic" or "Sidebar" will make surf easy.
http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.

The blinks are a code. If 3 red blinks, could be power board.

Samsung Series 6 60-inch F6400 LED TV User Manual:

copy and paste this link in your internet browser to see:

http://downloadcenter.samsung.com/content/UM/201406/20140616165949135/X12DVBADF-1128.pdf

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samsung ml1640 laser red and green light blinking continuously and printing not happening

Red Error Light Stays On The following conditions can cause the On Line LED to glow solid red:

• Printer paper is jammed inside your printer.
• A cover is not be closed properly.
• The toner cartridge is not inserted properly and needs to be reinstalled.
• The toner cartridge is running low.
• There is no paper in the paper tray.
• The paper inside the paper tray is not be installed correctly.

Red Error Light Blinks If your printer's On Line LED is blinking red, your printer's toner is exhausted and needs to be replaced. On Line and Error Light Blink Simultaneously
If your printer's On Line and Toner Save LEDs blink simultaneously, your printer requires service.

You can go to samsung online service request http://www.samsung.com/us/support/repaironline/supportOnlineServiceRequest.do

Change cartridge chip r paper pickup sensor

LG DLP PROJECTION TV (RU-44SZ63D) Tv light is off (with red light on). When I hit the power on button the red tv light starts blinking. Light continues to blink red then stops blinking and goes back to off (red light on).