N8-42P650A11 Trouble shooting

[Packard93]

INSIGNIA N8-42P650A11 Troubleshooting this samsung tv rebrand insignia.


Get a series of 5 relay clicks

checks
SMPS TO MAINBOARD CHECKS
CN801 TO MAINBOARD


HERE ARE ALL THE PINS FROM POWER SUPPLY TO MAIN i TESTED
PIN 1 PS_ON TEST O VOLTS nOT SURE IF THIS IS CORRECT i GET NO VOLTS HERE
PIN 2 STD5V TEST 5.2 VOLTS TEST GOOD logic board connected 5.2 i do get standby only then
PIN 3 GND
PIN 4 15VOLTS 15.01 VOLTS TEST OK logic board connected 0 volts tested
PIN 5 GND
PIN 6 GND
PIN 7 5.3 VOLTS 5.17 VOLTS ? logic board connected 0 volts tested
PIN 8 5.3 VOLTS 5.17 VOLTS ?logic board connected 0 volts tested
PIN 9 GND
PIN 10 15VOLTS 15VOLTS OK logic board connected 0 volts tested
PIN 11 15VOLTS 15 VOLTS OK logic board connected 0 volts tested
PIN 12 5.3 VOLTS 5.16 TEST ? logic board connected 0 volts tested


LOGIC BOARD CHECKS RELAY WILL CLICK AND VOLTAGES GO TO 0 ALL PINS
WHEN LOGIC I NOT CONNECTED I GET THESE ON THE SUPPLY
PIN 1 5.3 CONNECTED 0 NOT CONNECTED VOLTAGE IS STEADY
PIN 2 5.3 CONNECTED 0 VOLTS CONNECTED DROPS TO 0
PIN 3 GND
PIN 4 GND
PS_ON
VS_ON

Anytime the logic board connect im gettting a relay click on the power supply . I can connect all boards without the logic board the power supply wont click 5 times.


SUPPLY PINS TO MAINBOARD


POWER SUPPLY TO LOGIC