Greetings, came to my hands a philips tv 21pt4136-55 chassis sl03.2laa which does not turn on, when checking it I found the capacitors 2564 and 2405 inflated which change, the 7521 is in good condition, after that it still does not turn on, I measure the Voltage on pin 2 of 7520 has between 4 and 6 V (varies), on the 7523 -3 V manifold, on the drain of 7521 170 V. Checking the plan I see a resistor 3521 and a capacitor 2526 that are not present on the TV, I ask a question these components are not carried by this model?