Gacun CA-515 LCD LED LCD auxiliary power supply 5V-24V repair module under 55 inch LCD general modul [ElectricA]

Instruction Manual of Full Intelligent Module for Switching Power Supply of LCD Liquid Crystal TV and Monitor

Auxiliary power supply: 3.3V, 5V dedicated
CA-515 (shared within 36W)

This series of modules is specially designed for repairing the damage of the auxiliary power supply of LCD LCD TVs and monitors. The maximum power can reach 36W, which will definitely allow you to easily repair the auxiliary power supply of LCD. This series of products has a small size, simple installation, and basic use. Fully intelligent, high added value and other advantages, it is a major change in the maintenance market for LCD liquid crystal TV power supply maintenance, welcome to use!
*Installation Notes:
(1) First check that the +300V DC voltage is normal, then confirm that the switching transformer and secondary peripheral parts are normal, and then confirm that the load is not short-circuited, and then enter the following operation. .
(2) First remove the MOS tube or thick film IC on the original machine, put the module close to the heat sink, and then fix it on the heat sink with a screw lock (the lock screw cannot be pressed too tightly, otherwise the module will be damaged).
(3) Disconnect the cross in the actual circuit according to the figure, and connect the color lines of the module correspondingly as shown in the figure. It must not be wrongly connected. Only after repeated verification will not make the wrong connection, you can start the machine and cut it. ! The lead of the module cannot be extended under unnecessary circumstances. Otherwise it will affect the normal operation.
*Description of each lead connection method:
1. Red line: connect the main voltage +300V through the switching voltage device (ie, the D pole of the MOS tube of the machine, the D pole of the thick film IC).
2.Black wire: Connect to the negative pole, which is the hot ground of the power tube.
3. Blue line: Connect to the main voltage of the original machine (3.3V or 5V) 4 feet of stabilized optocoupler (some original machines have multiple optocouplers connected in parallel according to the original machine connection method), and 3 feet are grounded.
4. White wire: Connected to the rectifier diode of the feedback coil of the original machine switch transformer (as shown in the figure).
5. Green line: connect to the original main voltage +300V