CA-888 LCD Power Module

CA-888 Lcd Power Supply Control Board

CA888 Tv Television 15-24 inch Monitor 300V to 12/18V Smps Repair Circuit Universal Power Module

     CA-888 Module is used in the power stage of Lcds. In faulty circuits, it drives the transformer and enables the output voltages to be generated.  It is used to step down the 300V input voltage to the 12-18V level.

     There are videos on Youtube related to the assembly of this board. People performing this operation, which involves high voltage, must have knowledge about this type of circuit. In case of incorrect operations, it may create a danger to life or the related circuits may be damaged. This matter is under the responsibility of the buyer.

Features:

•     Model: CA-888 Integrated circuit
•     Lcd tv power supply control board
•     Input voltage: 300Volt
•     Output voltage: 12/18 Volt
•     Compatible tv sizes: 15 - 24 inch
•     Area of use: Lcd Tv Monitor
•     Quality, Long lasting use
•     Operating temperature: -40C /  80C
•     Cable length: 10cm
•     Product Size:  13.7mm x 19.1mm
•     Weight:  5.5gr

Package contents:

• 1 Piece CA-888 LCD Power Module

     CA-888 is used for the purpose of solving power supply repair problems of 15/24 inch LCD monitors. In Lcd tv power boards, problems with power, chip, high power switch and sampling resistor are largely seen. Due to the variety of these component models, mostly the same spare part cannot be found and it cannot be repaired. The advantages of this module; simplicity of wiring, easy installation, providing time savings, increasing the maintenance success rate, etc. bring up the idea of developing a universal power supply module for users experiencing maintenance problems.

Instructions and Checks:

•     Removing the Power Supply Chip and the Switches:  Remove the power supply chip and the switches (MOS tube) on the circuit board.
•     Capacitor Check:  Check the 300V capacitor and the capacitance at the last part of the package; if there is no drum (coil), evaluate whether there is a problem at the first replacement.
•     Circuit Final Check:  Check the last page; make sure there is no short circuit, advertisement board or high voltage board.
•     Connection Operation:  Connect the module to the related line and carefully make sure there is no incorrect connection; in case of incorrect connection the module may explode.
•     Assembly:  Mount the module in the original place of the radiator; ensure insulation and short circuit protection.
•     Power and Voltage Measurement:  After power is applied, check the performance of the measured voltage. If there is no problem, check the second cause, that is the pin connections.

Cable description:

•     Yellow: Drain pin, power control side; the D (polarity) end of the original high power MOS power supply. It is generally located in the middle of the power button tube.
•     Black:  GND, module ground (300V); then the negative capacitor, on the same line it is connected directly to a large filter capacitor.
•     Red: VCC, module power supply; then the rectifier capacitor at the feedback winding terminal is connected to the positive side. Continuous power supply is provided; the voltage tolerance is approximately in the range of 12% - 18%.
•     White: FB (voltage feedback); it is connected to the 4 legged optocoupler. Please check the heating of the 3rd leg of the optocouplers; if there is heating, the optocouplers must be evaluated separately from the hot ground connection.
•     Green: Startup pin; then comes the positive terminal of the +300V capacitor.

Can Be Replaced With the Following Parts

•  203D6.230D6 NCP1203D60R2G 203X6
•  LD7552BN LD7575SI LD7575GS LD7575 LD LD575 LD7575
•  OB2268.OB2269
•  3842.3843.3844.3845
•  EA1530.EA1532 TEA1507 TEA1522
•  DAP8A DAP08
•  1200AP40 1200AP60 1200AP100 1203P60 1203P100
•  FAN7601.FAN7530 FA5511 FAN6961 FA5500
•  L6562D.DM0365R 5H0165R DM0365R 0665 0265
•  NCP1271 NCP1270 NCP1653
•  2AS01.2BS01 FSQ100