Red LED blinks four times

5 red flashes is a bad panel connection or internal panel short, very carefully take the panel connectors off and reseat them and see if that helps, unfortunately you may have a bad panel.

copied from the manual, available at the kidde website

RED AND GREEN LED INDICATORS This smoke alarm features separate red and green LED indicators. The LEDs indicate the following: GREEN LED CONSTANT ON - AC power is present. OFF - AC power is not present. RED LED - Can be seen through the Push-to-Test button. Blinks once a minute - Indicating presence of a working battery. Blinks once a second - Smoke alarm senses smoke and simultaneously sounds an audible alarm. Blinks once every 10 seconds - Smoke alarm is quieting an unwanted alarm (Model ADC only). (Interconnected system only): OFF - Another smoke alarm in the network has sensed smoke and is signalling this alarm.

Hello,
the error light sequence that you are seeing is indicating a "backlight error". Most likely you have a bad inverter board -the board that powers up the back-lights behind the display panel. They might be available via ebay if you are a DIYer, or you need to call for sony service.
Good Luck!
Rich Lilja

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. http://electronicshelponline.blogspot.com/

Unhook the fan and see if the set works, it will work without the fan for testing purposes, chances are the fan is drawing to much current and is being shut down by the TV circuitry

the colorwheel needs replacing. if the colorwheel won't spin, the lamp won't light. if you hear a high-pitched whir, the colorwheel works, which means there is a power supply issue. there is a fix for that, but you have to be good at soldering. if you are give it a try: http://www.infocus.com/service/asc/communications/tech_notes/2006/09/tn495g.pdf

E27 means waste ink absorbed is full need to clear out but you still can't print because only 80% or 70% are full.try this method to solve you problem.

Resetting Printer Canon MP140, MP160, MP180, MP210, MP220, MP460, MP470, MP500, MP510, MP530, MP600, MP610, MP800, MP820, MP810, MP830, MP960, MP970 procedure:

•Turn off the canon printer
•Hold the Resume Button (red circle in the triangle), add a printer (click “Power”) an indicator light green.
•Hold the Power Button, release the Resume Button.•Not releasing the Power Button, double click “Resume” and release Both Buttons.after that wait the green flash will become light on then.
•Click “Resume” for Four times
•Once you click “Power”, to confirm the selected action (reset counter absorber). To disable the printer “Power” button to click again.

if this ok so u can print or can't. i still suggestion you bring you printer to computer shop for clear out inside spam printer.

mt sony trinitron power light is blinking from green to red twise and then pause for 3 seconds and then blinks again from green to red

Replaced the sc board and tv works fine again.