in this video {769} LG Flatron Monitor W2241S Power Supply Fluctuating, this power supply was fluctuating in secondary. i found current limit resistance in series of auxiliary winding open circuit. and checked 1N4148 and 4.7 ohm resistance at MOSFET gate was open circuit. the voltage at vcc capacitor and output section were fluctuating. this board is using LAF0001 (this is LG part number) while its equivalent part number is FAN7601 pwm controller IC. board number E8NBW4183090417199 AIP-0185. lg model number LGP-002-L, LGP-002-H, e148279, tu78q11a.
download LG Flatron Monitor W1942S, Power Supply W2241S circuit diagram bit.ly/3EjreuQ
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00:00 LG flatron W2241S monitor power supply not working
00:40 E8NBW4183090417199 AIP-0185, LGP-002-L, LGP-002-H, e148279, tu78q11a.
01:04 how to troubleshoot lg monitor power supply board
03:40 LAF0001 or FAN7601 PWM IC circuit
04:15 LAF0001 or FAN7601 pinout
04:52 how to repair lg monitor power supply circuit
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