Two standby blinks, transistor 2sc5931 shorted. Didn't get it, used a
substitute. Started working but the picture is horizontally stretched
almost 1.5 times. Is the substitute is creating this problem, any right
value substitute you can suggest. Thank you.
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Its HOT [Horizontal Output Transofrmer] section circuits has the trouble. There are two possibilities for this fault. The first one is shorted HOT itsef. It can be replaced; and can be bought from most of the electronic sparepart shops at your town. It will have a number printed on it, and should benoted. Must replace with same number. The second fault is with leakey Horizonal Output Transsistor. This is the transistor that drives the HOT said above. Just repalce this transistor first. After replacing it, just switch ON the set for a few seconds; say 5 seconds or so, and check the heat of the replaced transitor. If it overheats within this time period, HOT is defective and should be replaced. OK.
Initially, the Sony KV-34HS510 uses the DA-4 Chassis. On this chassis, 7 blinks refers to the fault "Horizontal Deflection Stopped" indicating a problem with the horizontal section. Offhand, check, replace the HOut transistor and have the FBT (flyback transformer) ring tested.
this symptom is usually caused by a breakdown in power supply circuit or it may also be caused by a breakdown in the horizontal deflection circuits which includes horizontal oscillator, pre drive or drive circuits, horizontal output transformer, horizontal output transistor and high voltage circuits (flyback transformer). pls observe precautions in dealing with this high voltage circuits and if so happen you are not inclined with this kind of work, it is better for you to bring it to a qualified technician to avoid accident. good luck!
These are sony error codes while in protection mode.
The 7 blinks means high voltage exceeded 33k volts ,caused by either horizontal or power supply circuits.
The 6 blinks code is for no horizontal deflection, and the 4 blinks code is for no vertical deflection.
So the one thing they all have in common is the power supply that will need to be repaired before you can use the set again.
Hope this help. Good luck
Please do not rate this answer(unless it helps) as it is only a suggestion/information.
The 7 blinks indicate that the horizontal deflection has stopped. This can be because the horizontal output transistor has shorted (common) or other defecive parts. If you are familiar with working inside of sets where potentially dangerous high voltages exist and can solder, let me know and additional details and instructions will be provided.
KV-32HS510 and KV-27HS420, seven times blink error code shows problem in Horizontal deflection circuit.
There are many possibilities like dry solder joints, weak capacitors, Horizontal transistor short or flyback transformer fried etc.
If you have little experience of TV repair and good solder skills and have necessary tools to test / check defective parts, then you can make it. you also need to have related service manual to see board location, schematics and part numbers.
This is Sony's way of telling you that there is a short in you set.Probably the horizontal deflection circuit.(Horizontal output transistor shorted??). Also any other short.
You need to take it to a techincian and have it checked out. It would be wise to get an estimate!