I have a Sony TV model KV-2167MT Trinitron.I'm facing problem while switch on from front switch Standby LED blinking while press any switch Like Volume up down, program up down. but power not on.
I replaced 2sd1878 and PS801. it work 30 minutes after that transister get short again I change tr. but problem is same. Tr. 2sd1878 short after 30 minutes. I check output voltage 110V DC is normal.
Any one have solution. please reply...
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
How many times do this standby LED blinks at one time switch on? These blinks are fault indications. From the number of these blinks, you can get an idea about the faulty section circuit inside. Count it. If you wish to get more details, check this site. Pull up older posts there. Check this site with patience, as it has over
2200 posts now. All are related to
electronic equipment repair help. Blinking codes to Sony CRT based TVs and all other models are given in detail. Check it and confirm.
How many times the standby light at its front panel blinks? Count it. These blinks are fault indications. Check this link for more details about Sony Blinking codes. Count the blinks that occur once, after switch the TV On by its front panel power switch. Check it.
In standby mode (red led on/after the led stops from blinking), press "Display", "5", Volume (-)", "Power on" on the remote control in sequence, self diagnostic screen will be display, let me know the what is on the screen to diagnose where the fault came from.
Standby light on Sony TVs blinks 16 times is abnormal I thiks. It may come up to 8 blinks or so. You jsut switch off the set by AC mains switch at the front panel, switch it again with it and count the exact numbers. Never switch it On_Off by remote hanset.
If it happens even after this process, you just do the following
Press the following button on your remote control as stated "Display"_"Channel"_"5"_"Vol Minus" [not plus] then "Power".
You may get "OVP" "OCP" "V STOP" etc displayed on the screen.
Just report the result to me through Fixya. Ok.
I have not worked on your particular model. But, I have serviced many TV sets over the years. My answer will ge generic.
Check all the capacitors in the horizontal output stage and power supply areas for high ESR. All the caps that are out of spec must be changed.
The high voltage multiplier & flyback can also cause the fault you are having.
You have to consider that the DC voltages are not the only important spec that has to be met. There are also many power drive signals that work with reactive devices. If there is any defect in the critical areas there will be failures.