Hey folks, please help to fix, got this TV broken, does not start, on first try just blink once on second blinking 15 times, no picture or sound, I tried to take off all eeproms, looks ok, without main eeprom gives 18 blinks.
Looks like power board, since there is no 24v: checked all diodes on front side, looks ok.
Pin #/PCB Key/ STANDBY/ ON (Under Load)
1___+5V/+3.5V___+5.15V___+5.11V
2___+5V/+3.5V___+5.15V___+5.11V
3___+19V_______+19.24V__+19.05V
4___+19V_______+19.24V__+19.05V
5___+19V_______+19.24V__+19.05V
6___+19V_______+19.24V__+19.05V
7___+19V_A_____+19.24V__+19.06V
8___+19V_A_____+19.24V__+19.07V
9___GND__________0.00V____0.00V
10__GND__________0.00V____0.00V
11__GND__________0.00V____0.00V
12__GND__________0.00V____0.00V
13___3D __________0.00V____0.00V
14___PS_ON______+0.08V__+3.7V
15___ON/OFF_____+0.03V__+0.14V
16___DIM________+0.00V__+3.30V
CN9201/CN9203
'NC' = Not Connected By Manufacturer
Pin #/PCB Key/ STANDBY/ ON (Under Load)
1___ON/OFF______NC_________NC
2____DIM_________NC_________NC
3____3D__________NC_________NC
4___+12V_________NC_________NC
5____GND________0.00V____0.00V
6____GND________0.00V____0.00V
7____GND________0.00V____0.00V
8____GND________0.00V____0.00V
9____GND_________NC________NC
10___GND_________NC________NC
11___+24V______+0.011V__+0.025V
12___+24V______+0.010V__+0.025V
13___+24V______+0.011V__+0.025V
14___+24V______+0.010V__+0.025V
Looks like power board, since there is no 24v: checked all diodes on front side, looks ok.
Pin #/PCB Key/ STANDBY/ ON (Under Load)
1___+5V/+3.5V___+5.15V___+5.11V
2___+5V/+3.5V___+5.15V___+5.11V
3___+19V_______+19.24V__+19.05V
4___+19V_______+19.24V__+19.05V
5___+19V_______+19.24V__+19.05V
6___+19V_______+19.24V__+19.05V
7___+19V_A_____+19.24V__+19.06V
8___+19V_A_____+19.24V__+19.07V
9___GND__________0.00V____0.00V
10__GND__________0.00V____0.00V
11__GND__________0.00V____0.00V
12__GND__________0.00V____0.00V
13___3D __________0.00V____0.00V
14___PS_ON______+0.08V__+3.7V
15___ON/OFF_____+0.03V__+0.14V
16___DIM________+0.00V__+3.30V
CN9201/CN9203
'NC' = Not Connected By Manufacturer
Pin #/PCB Key/ STANDBY/ ON (Under Load)
1___ON/OFF______NC_________NC
2____DIM_________NC_________NC
3____3D__________NC_________NC
4___+12V_________NC_________NC
5____GND________0.00V____0.00V
6____GND________0.00V____0.00V
7____GND________0.00V____0.00V
8____GND________0.00V____0.00V
9____GND_________NC________NC
10___GND_________NC________NC
11___+24V______+0.011V__+0.025V
12___+24V______+0.010V__+0.025V
13___+24V______+0.011V__+0.025V
14___+24V______+0.010V__+0.025V
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