Sony HCD - AZ33D

https://diagramasde.com/blog/102776/hcd-n555av-pdf-hcd-n555av-pdf.html

Possibly similar free manual:

https://www.manualslib.com/manual/1106571/Sony-Hcd-N555avk.html

Sony HCD N555AVK Service Manual

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

https://community.sony.co.uk/t5/home-cinema-projectors-players/how-to-repair-sony-hcd-zux10d-dvd-deck-receiver-always-display/td-p/2295791

Try G B Telespares in Clarinda Vic (03) 9551 050
,you can find on google,they can post out if required

If you would like Sony Electronics product support, repair advice, troubleshooting assistance or warranty information, please visit http://www.sony.com.au/section/support or call 1300 137 669

Hi! The manual you need here http://www.fixdevice.net/smanuals/hi-fi_hi-end--others/sony/hcd-v707_28010.html

Get onlineand got to www.google.com In the google search box type: "SonySupport" (without the quotes and put your manufacturer name before Support). Look for downloads and drivers. Enter your model number and operatingsystem when requested. Look throughout the site for Manuals.

As I asked the FIRST time you posted this question, I need you to verify that model number. Is it 100% correct?

hcd - dz790k shows protector

http://www.givemefile.net/smanuals/hi-fi_hi-end--others/sony/hcd-g2000_26718.html
Above is a service and repair manual for the Hcd-G2000.

Below is your user guide.
www.devicemanuals.com/guide/.../Sony/Sony-Bookshelf-Hi-Fi-System-HCD-F250AV-User-Guide-TXpZek9EST.html
Support links for Sony below.
esupport.sony.com/
HCD250 service repair manual below.
http://www.givemefile.net/smanuals/stereos/sony/file/8297.html