Related Manuals for LG EF Series
Summary of Contents for LG EF Series
- Page 1 2015 (EF Series) OLED SMPS Testing Forcing on the Power Supply Testing the Power Supply 55EF9500 65EF9500 Updated 03-16-2016 ver2 Updated 03 16 2016 ver2...
- Page 2 Read First Before Beginning the Power Supply Testing Procedure When servicing an OLED TV and you need to Test the Power Supply, due to the symptoms the TV Won’t Come On or TV Intermittent Powers Off, before beginning the Power Supply Testing READ THE BELOW FIRST. Check the Front Power Indicator: Take note of the front Power LED.
- Page 3 TEST 1 (OLED EF Series) Power Supply Board 12V/24V to Main Voltage Check AC Should not be applied at any time while adding jumpers or While P201 SMPS TEST 1 Fig 1 unplugging connectors, damage to the circuit Board may occur.
- Page 4 TEST 2 (OLED EF Series) Power Supply Board T-CON 12V Power Check P201 SMPS TEST 2 Fig 2 Continue if Test 1 was OK. Top Row pins 23 24 Leave original jumper (A) in place. are Odd numbers AC Power is removed at this time.
- Page 5 TEST 3 (OLED EF Series) Power Supply Board T-CON 12V and 24V Power Check P201 Continue if Test 1 and Test 2 were OK. SMPS TEST 3 Fig 1 Top Row pins Leave jumpers (A) and (B) in place. AC Power is removed at this time.
- Page 6 TEST 4: (2015 EF Series OLED) Power Supply Board T-CON 12V and 24V Power In this case, the Power Supply needs to be tested to see if it can supply the T-CON 24V and 12V when loaded. TEST 4: 24V T-CON POWER LOAD CHECK: (1) Leave all Jumpers in place on P2399 to P201 of the Power Supply and disconnect CN5 on the T-CON board.