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Hp laserjet pro m401, IC identification

I need the IC no. that is used in engine controller unit. 
The IC is located near FET in 24v section and have 8 pins. 

Please help me finding the IC. 
IC No. And replacements if any... 

Thanks in advance... 

Comments
pika75
pika75 picture

Good morning!
If you asking about IC505, it's type is 1D12N01   5570.
This is a smd 8pin ic, but this is in the primary section.

I find an other 8pin ic, IC551, type 63536  2381, located near Q553.

Good luck!

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