Re: LG L1953S doesn't power on
It depends on the spec of the IC for the VCC operating range, the spec will tell you the OV/UV (Over/under Voltage points). Your power supply is pretty basic designed.
Check the fusible resistor R111 (4.7Ohms), and C103 (33uf/50v), and the 0.4uf taht you had already checked. By the way service manual has real great explanation how it works.
It depends on the spec of the IC for the VCC operating range, the spec will tell you the OV/UV (Over/under Voltage points). Your power supply is pretty basic designed.
Check the fusible resistor R111 (4.7Ohms), and C103 (33uf/50v), and the 0.4uf taht you had already checked. By the way service manual has real great explanation how it works.
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