Pioneer SX-S30 need help identifying SMD semiconductors Also need service manual and/or schematic

[ccbargains]

I have not been able to locate a service manual for this Pioneer SX-S30 receiver. The unit will not turn on. I am troubleshooting the switch mode power supply. I found three smd semiconductors that test open while in circuit. The first (Q904) is a transistor marked AZ43W. The second is a diode D905 marked L68 and the last is a diode D906 marked 66 CU1M. I have attached photos.
Any help would be appreciated. Thank you.

[R_J]

Are you measuring ANY voltages on the output pins of the power supply? Check if you have +12v standby on P902 (1~3) if not check fuse F902
Q908 is the standby switching ic 2A153
If you don't have 12v standby Q904 circuit will not turn on and operate
Q904 is a INA5001API transistor, D905 is a M1FL20U
D906 is a GU1M ultrafast 1000v, 1amp diode

[ccbargains]

Thank you very much for your help!
I do have 5V and 12V but no 33V. The unit does not completely turn on. I do get a display over hdmi but the display on the unit does not light up.
Any suggestions?

[ccbargains]

Also Q904, D905 and D906 did not register anything with my multimeter using diode check.

[R_J]

Check P902 pin 7 for PON, this should be a high, likely around 3.3 vdc, this is needed to turn on the power supply +30v and the display supply
section
There are two other pins on that plug, 8 TSENS and 9 PSENS what are their voltages? TSENS could be a protection line so maybe the amp section has a fault, and the unit will not turn on to protect the power supply.

If you have the remote control, try pressing the MODE and HOME buttons together for about 5 sec. and see if you get anything on the display.

[ccbargains]

Thank you for your help. I have ordered replacement for Q904.D905 and D906. I will get back to you when i receive them.
I will try your suggestions R.J. Do you know where I can download a schematic?