Question about Sony Grand WEGA KDF-50WE655 50" Rear Projection HDTV
When i turn on my Sony Wega the standby light blinks 12 times green followed by 4 times red. There is a popping noise and the TV won't turn on. It did this one time before months ago and then after a day it started working again. We are now going on two days and no picture.
Standby Light flashing. Can get sound but no picture.
Posted on Jul 29, 2010
These particular set suffer from dry joints as they get older, this is quite a common occurrence I`m afraid with Sony`s and they`ve always tended to have these problems for as long as I can remember. I`ve not been in the trade for four years now, but those flashing lights are a way of letting the engineer know what section of the set to investigate to remedy the fault. The older sets used to suffer from dry joints around the frame output, sound output chips and voltage regulators because they get quite hot and the heatsinks that they are mounted on tended to be quite large and so flex the PCB slightly and then after a few years of this movement and heat, the set would start to go off and flash various LED`s on the front of the set. It does require an engineers expert eye I`m afraid, Like I said earlier, it`s usually dry joints which doesn`t involve any parts but the bill can still build up because these sets tend to be extremely complicated due to the monitoring of the various signals and voltages within the set if something has failed. I had one for repair once where it had loads of dry joint, unfortunately, when the set was on the bench, I was in the process of trying to locate the dry joint when the line output stage decided that it had had enough and the set just completely expired, So it is advisable to try not to run the set in this condition. Ian
Posted on Jul 27, 2009
Sounds like cold solder problem u may have damage other parts by not adressind it sonner solution take apart look for bad connectins black spots on green board pay closr att 2 fly back joints. if no luck check volt in psupply etc
Posted on Jul 27, 2009
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Posted on Jan 02, 2017
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Standby/Power light of the TV blinks when there is any internal malfunction in
the TV. The self-diagnostic function of the TV will cause the STANDBY light to
blink or flash when the television detects an issue. The number of times the
STANDBY light flashes corresponds to a specific issue.
examples are given below; some of the issues may be resolved without the need
1 blink / 2 blinks / 5 blinks: - This indicates that there may be a power-related problem with your set.
3 blinks: - This indicates that there may be a power-related problem with your set. The set will need to be serviced to allow a technician to determine the specific issue that needs to be repaired. If the power light flashes three times in sequence in a Lamp TV, the lamp cover is not securely attached. Reattach the lamp cover to resolve this issue.
4 blinks: - This indicates that there may be a back light or lamp power problem.
6 blinks: - This indicates that there is some kind of audio problem with your set.
7 blinks: - This indicates that there is a temperature problem with your set. Please check to make sure that the air vents on the sides and back of the set are not blocked or clogged and there is adequate ventilation around the television. We recommend that you check and clean the vents periodically to make sure the set receives adequate air flow. If the problem continues, the set will need to be serviced.
8 blinks: - This indicates that there may be a video-related problem with your set. If the flash sequence is not listed above or the light continues to flash, follow the steps below to perform a power reset:
Try the following steps to check if the issue can be resolved.
Turn off the television.
Unplug the television power cord from the electrical outlet.
Let the television remain without power for 60 seconds.
Plug the power cord back into the electrical outlet.
the television is plugged into a power strip or surge protector, remove it from
the power strip or surge protector and plug it directly into the wall outlet.
If the issue is resolved, the problem is with the power strip or surge
protector and not the television.
the issue continues to occur, service may be required.
for using Fixya.
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