Tuesday, 17 November 2020

LG 42INCH LCD TV POWER BOARD [SMPS] EAY62810501 SCHEMATIC DIAGRAM AND TEST DIAGNOSIS METHODS


LGP42-13PL1 LED TV Power
EAY62810501 schematic

On Condition : In a moment of Power ON Signal activated, the current of 3.5V output should be limited within 40mA(Max) at LCD TV condition for stability.
Do not turn “Power ON” Signal on at the load condition of 3.5V output, more than 40mA.

* Total regulation for each output circuit includes the results of input voltage variation, load variation, warm-up drift and temperature change.
* Maximum input Wattage Rating: Under 85W

This Power Supply has below-mentioned protections.
* Short circuit protection between different output terminals is not considered.
* Trip point for over voltage indicates the operating point when the output voltage slowly increases.
* The conditions of Over Current measurement Multi output (3.5V,12V,24V) is nominal load state except an over current measurement.

Connector voltages

Test methods

Block diagram

Schematic diagram