TOSHIBA 32AV700E MODEL PROBLEM POWER SUPPLY OK 3.3V AND 1.2V OK BUT STB BY LED NOT GLOW

we flow flowing step given in below

  1. First we check 5v stb voltage .it show 5v ok then my next step to check ps-on supply in connector 
  2. Ps -on supply is continues up and down then we check 12v supply is also up and down continues
  3. Then i remove motherboard and power supply connection. Then we sort 5v stb supply to ps -on .Then after we check 12v supply by placing 12v bulb to 12v supply bulb glow properly
  4. Then after we connect motherboard to power supply and check motherboard 3.3v and 1.2v is constant and all other voltage are up down continues 
  5. Then we check ac detect pin 3.3v  is present or not 
  6. Then we see 3.3v is not present in ac detect pin. Then i given 3.3v supply to ac detect pin 
  7. Then after i see my stand by led is glow properly and all other voltage is constant Then we press power button my set is on 

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