scalar strip details test point Panel Number V580dk2-xrks1
NT39565H-C5253B COF Details and Voltage Analysis Introduction Chip in Film This is a very important component inside the LED TV display. It is the signal flow and voltage distribution. In this article, we have V580dk2-xrks1. The test point of the scalar strip. We have also attached the link of the PDF file at the end of this article. You can download this file in 4k resolution and see the clear image, and this image will be complete.
📊 COF Pin Details Analysis
1.VGH: +27.6V
This voltage is used to keep the TFT gate drive in a high state, in simple terms, these voltages turn on the gate drive.
2.VGL: -7.8VÂ
These voltages are used to keep the TFT in a low state, meaning these negative voltages turn off the TFT.
3.VDD: +3.3V
This power supply operates the logic circuit for the source COF and also for the internal panel.
4.GND:Â 0V
This is ground. It works everywhere in the panel’s internal circuit, including the scalar strip.
5.STV: 0.04V
The function of the STV is that it generates clock pulses, which is where the scanning process begins.
6.CKV: +1.71V
CKV is a clock signal that causes the gate drive to shift the line, which is why double image faults are seen in some panels.
7.OE2: +1.36V
OE2 This signal enables and controls the output of display data.
8.OE1: +1.36V
OE1 This controls the secondary signal output.
9.UD: +3.3VÂ
UD Its function is to control up-down scanning and it also identifies the direction of vertical scanning.
10.L/R: +3.3V
Its function is to control the left-right horizontal shaft.
11.STVR: 0.06V
The STVR starts the backup line and this is the secondary start pulse signal.
12.VCOM: +7.3V
Common voltage flicker and screen black level setting
Conclusion
This COF data is being published by Sony LED TV Repair Center to help technicians. In this article, we have also included the test points of the scalar strip. This is a complete data of the side COF. If you have any questions, you can ask in the comment box.
All images and data used in this article are for educational and informational purposes only. All rights belong to their respective owners. This content is shared solely to assist technicians and for non-commercial use.
If you need to read the detailed 8658-HC528 COF Pin Details and Voltage Analysis, 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.
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