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Hello... I would start by getting the correct lamp for the TV, and I would advise getting an original equipment lamp. The lamps and ballasts are matched by wattage and operating voltage, and a mis-match will at best cause early lamp failure. The sound you are hearing could be the ballast trying to ignite a bad lamp caused by a mis-match. I hope this helps!
The most common cause of No Picture - Lights Flashing, or Intermittent Picture - Picture Cuts Out in all Sony LCD TVs is bulb failure.
No troubleshooting or replacing parts should be attempted without installing a "known" good bulb. This is not a fault, the mercury in the bulb has been consumed.
Many dollars are spent on parts and service when the only problem is bulb failure.
You can replace the complete Lamp Assembly or the Bare Bulb. DIY or get a serviceman. Here is a link that shows how to change or replace the bulb or lamp in Sony KF50WE610. Sony Lamp, Bulb, Installation Guide
Sony KDF-60XS955 picture goes and power/standby light light flashes
Most likely you have bulb failure. First step in troubleshooting is "Change the Lamp or Bulb". Lightning, power line bumps and collisions with vacuum cleaners can all shorten lamp life. Rough handling in shipment can also happen without your knowledge.
+90% of all Sony LCD Rear Projector "No Picture or Intermittent Picture" faults are related to bulb failure.
If new lamp does not improve the situation, then hands-on troubleshooting by someone that has parts and knows how the unit works is the only practical remedy.
Is the lamp indicator light flashing? A new lamp may not solve the problem. The known problem with lamp failures is poor voltage output from the ballast,.. a problem Panasonic refuses to correct and they decided to no longer provide the repair part through their supplier in an attempt to sweep this problem under the rug.
Lamp light flashing once every 5 seconds or twice every 5? Twice every 5 seconds,....lamp failure, once every 5 seconds,...ballast or thermal fuse failure. You have a lamp, ballast or thermal fuse problem. The ballasts are a discontinued part and can only be purchased used at approx. $225.00 or rebuilt for around $175.00 less any service charges to diagnois and repair.
Here is a list of error codes for your unit: 12 Software bug. Contact dealer/factory. 13 Flash memory corrupted. Download new software. 14 Engineering only programming is complete. Call Christie, replace TIPM. 15 Attempting to download code without being in boot mode 16 Invalid interrupt. Power off/on. If it persists, contact dealer/factory. 17 Forced boot mode. Keys held down too long. 18 Attempting to program boot mode without jumper LAMP FAILURES 21 Lamp compartment too hot 25 Lamp 1 not installed 26 Lamp 1 Interlock: door open, lamp not installed 27 Unable to turn lamp 1 ON 28 Lamp 1 shut off unexpectedly 29 Lamp 1 driver overheated 2A Lamp 1 driver operation error (e.g. too hot can’t start) 2C Lamp 1 driver UART communications failure 30 Lamp 2 not installed 31 Lamp 2 door open 32 Unable to turn lamp 2 ON (unknown reason) 33 Lamp 2 shut off unexpectedly 34 Lamp 2 driver overheated 35 Lamp 2 driver reports operation error (e.g. too hot can’t start) 36 Lamp 2 driver UART communications failure 37 Lamp Watchdog Tripped – Unless lamps turn on again after 3 minutes, assume software hung.
Does the green light begin to flash when the picture disappears? If so, you have a weak lamp causing your TV to shutdown the picture. Replace the lamp with an original Sony lamp as the aftermarket lamps are known to have problems such as early failure and low brightness. Please be sure to rate this solution. Thanks!
First, check if any of the vents are clogged with dust. If not,
try another lamp. They don't always look bad when they are bad.
If you feel handy, by the lamp itself without the cage and swap
in the new lamp. Make sure you do not touch the new lamp (finger
oil is bad for the lamp. The oil creates a hot spot and early failure).