TCL L40S6500 Complete Voltage Chart – Complete Main Board Voltages
This is a famous TCL model, L40S6500, so I thought I should make its voltage details and share them to benefit people. In this, I have mentioned almost all the voltages and written them in exact voltages. There is no room for any mistake. In this, I will explain how they work. This is a chart of the voltage of the TCL model, so look at it in the same way. This set came to me for some other fault, but I have made its voltage details so that I can share it in the form of an article on my website. I will also share that fault, God willing.
L40S6500 Main board voltage trail
- 12V: main power supply
- 5V: This power supply is for USB and Next regulator. And it goes to Wi Fi.
- 3.3V: Standby Hold Line This power supply remains on all the time until you disconnect the main power line. The system also goes to the IC and IR receiver.
- 1.0V: Core voltage that goes to the system IC all the time until you switch it off.
- 1.0V: Main Core, These voltages go to the main processor. and handle RAM
- 3.3V: These are for the voltage tuner. This regulator is three-pin.
- 1.8V: This power supply is used for DDR RAM, so the input voltage is 3.3V Comes from a buck converter.
These voltages remain on even in standby mode.
- 12: voltage main power supply on.
- 1.0V Core voltage on For system IC
- 3.3V This supply for system IC and other buck converters
As we mentioned above, these three power supplies continue to be on even in standby mode. If any of these supply lines is not on, you should first find out the reason for this. If these power supplies are present, then the remaining supplies will be on standby according to their configuration. The twelve-volt power supply was always on, and the zero-point-one voltage is the core voltage for the system IC, while the three-point-three voltage goes to the system IC, and the rest goes to the buck converter. These three supply lines should be on at all times.
Conclusion
In this article, we have looked at the voltage characteristics of the TCL model L40S6500, and we have also attached a picture with the explanation so that we can see where its voltages come from. It provides all the voltage specifications. This is a purely technical article written for technicians, and it is for their work. If you have any questions as a technician, then be sure to ask in the comment box below. I will try my best to give you a satisfactory answer. We will continue to include articles with voltage details in the future.
Q1: Why is it important to know the voltage details of any motherboard?
A1: To troubleshoot any motherboard, you must first know its voltage details or voltage chart to see where and how much voltage is coming. Only then can you repair it properly.
A2: There is a sequence of voltages that determine which voltages will remain on in standby mode and which voltages will be on the set after it is removed from standby mode.
If you want to read the article How to Fix TCL L40S6505 Backlight Circuit Problem, click here.
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Shaukat Ali has over 30 years of experience in LED TV repair, specializing in chip-level repair work. He is an expert in Sony LED TVs, and also repairs other major brands like Samsung, TCL, Orient, and Haier. His expertise includes display panel faults, motherboard issues, power supply circuits, T-Con, and HDMI faults. Based in Lahore, he shares real-time fault finding cases from daily repair work to help technicians and learners with practical experience.
📞 Contact: +92 321 4066054