Sony KLV-46BX450 6 blink error solution CCFL inverter fix
Sony KLV-46BX450 6 Blink Error Solution If you are facing this error, then in this article you will find the complete solution. This Sony LCD came to me with another error. I faxed the error and delivered the set to the customer. The next day, I got a call from the customer that it was blinking six times. I told them to give me the set, and I will check it. When the set came back to my workshop, I turned it on and found that it was working normally. As soon as I gave it an HDMI signal, suddenly the set started blinking six times. I went to its main menu and reduced the backlight, and the set started working normally, which led me to suspect that there was a problem with the CCFL high voltage.
Power Supply & Inverter Test
I opened this set in my workshop and checked it. I noticed that when there is no signal in this set, that is, if you are not feeding it an HDMI signal, it works normally. As soon as you feed it a signal, whether it is HDMI or a cable antenna, it shifts to six billing. This is a rate-type error, not a general error. So I started to trace what could be the cause. I checked the voltages of its CCFL inverter, which were normal. The 24-volt input power supply was fine. After that, I removed the cover on top of its CCFL inverter. When I inspected the CCFL inverter, I found one thing strange about it: one of the CCFL transformers installed in it was different. I did the impedance of this transfer, and its coil was about six hundred ohms. This transfer was from a 40-inch inverter.
Faulty CCFL Transformer Replacement
I think this set has been taken to a technician, and he may have damaged the CCFL transformer in it. He has installed a 40-inch CCFL transformer in it, due to which the balance of the CCFL inverter board got damaged. As soon as the set was running on high brightness, the set would go to six blinks. If you were to run it on low brightness, it would perform perfectly. Now I had to install its CCFL transformer of the relevant value so that my circuit would perform properly. I had an inverter board lying around, from which I removed the transformer and replaced it. My set started working normally. I connected the set to HDMI and ran it on full brightness, but there was no problem. Even when I ran it on a cable channel, the set was working perfectly. So my job was done.
- The TV had previously been taken to a technician who installed a 40-inch CCFL transformer.
- Due to the wrong transformer, the CCFL inverter board balance was disturbed.
- On high brightness, the TV went into the 6-blink error.
- On low brightness, the TV worked normally.
- On low brightness, the TV worked normally.
- After replacement, the TV started working normally.
- I tested the TV on HDMI and cable channels at full brightness, and no error appeared.
- Result: Replacing the faulty CCFL transformer completely fixed the issue. ✅
Conclusion
As you can see, we fixed the six-blink error code. It was a strange fault of its own. Such faults do not occur often. This was because I was the default. Someone had used the wrong part in it, due to which it shifted to six blinks at full brightness. That is, its protection would have been turned on at high brightness. The man-made mistake in this was that someone had installed a 40-inch CCFL transformer in it. He must have thought that maybe it would work, but there is a lot of difference between the 40-inch and 46-inch models. So we should keep in mind that whatever part we change should be perfect. It should be of the same value. Only then can the work be done properly.
Q: 1. What does the 6-blink error mean on a Sony Bravia TV?
A: 1 This means that there is a fault in the CCFL inverter of your Sony LCD TV.
Q: 2 Is the 6-blink error related to the power supply or backlight inverter?
A: 2 This fault can also be with the power supply if the inverter is not getting 24 volts from there, but more likely it is with the inverter board.
Q: 3. Can I fix the 6-blink error on my Sony TV at home?
A: 3 No, you will have to go to an expert technician to diagnose and fix this fault.
Q:4 How much does it cost to repair the 6 blink error in Sony TV?
A: 4 It depends; if your inverter board is repaired, it will cost less, but if your inverter board is not repaired and needs to be replaced, it will cost about 20 to 25 dollars.
Q: 5. Is replacing the CCFL transformer a permanent solution for the 6-blink error?
A: 5 Yes, this is a completely permanent solution if you use a good-quality original CCFL transformer.
Q: 6 Does the 6-blink error occur only on HDMI or also on cable/antenna?
A: 6 This question is related to the same article. In fact, what was happening was that when the set was set to overbrightness, the six-bit protection was turned on. I want to tell you that this is not a common fault; these are very rare cases.
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Shaukat Ali
Shaukat Ali is a professional Sony LED TV repair technician with over 30 years of experience. He specializes in diagnosing and fixing complex display and board-level faults. Based in Lahore, he shares real-world repair cases to help both customers and fellow technicians.
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