IT DISPLAYS PROTECTOR PUSH POWER

Click link and download manual:
https://servicemanuals.us/sony/audio/hcd-rv222da-hcd-rv333da-hcd-rv555da-mhc-rv222da-mhc-rv333da-mhc-rv555da.html

They like any power transistor will be on a heatsink. Find that I you will find them.

I believe I already answered this.

Sounds like unit is in protect mode. This is usually caused by a problem in the amplifier section. Only way to fix is to replace the main board - hope it's under warranty, otherwise it's probably not worth fixing

hi.your lens have weak.please u will be change your lens.thanks

Needs repair either a output ic or a diode near one of the outputs most often takes care of it. Not a job for a diy-er.

Follow the steps below to troubleshoot if the word PROTECT or PROTECTOR is flashing on the A/V receivers display.
1. Check the speaker wires and speakers for proper connections.
2. Reduce the volume level. IMPORTANT: If the receiver is played back at maximum volume level it may enter the protect mode. Maximum volume listening will cause the receiver to run very hot and may drain the output capacitors.
3. Disable the surround sound option if both the A and B speakers are being used simultaneously.
4. Ensure the top of the receiver has proper ventilation to keep it from overheating.
5. If the message only occurs when using a DVD player, the sampling frequency may be set too high. IMPORTANT: Some receivers provide compatibility with the higher sampling frequencies through alternate connections. Consult the owners manual for specific information.
6. Unplug the AC power cord for about 1 to 2 hours to reset the output transformers.

hcd - dz790k shows protector

on my home theater display it shows protector push power

CHECK UR AUDIO IC/STK