Alpine PMX-F640 pre-drive issues

[Lenin89]

Hi mates

Alpine PMX-F640 stays in protect.
Defeating the protection circuit turns on the PS section, but there is -7v DC offset on all of the speaker terminals even without the output BJTs.

Found something in the pre drive circuit is not OK, picture attached. Instead of +30v at the + line there is -7.4v dc. Any help would be appreciated to fasten the process to find the issue.

Schematic is in the attached file.

 

[Perry Babin]

Is R9917 open?

 

[Lenin89]

Fixed the amp. The R9917 was indeed open, there were couple of bad transistor in the protection circuit, replaced those and the amp works fine now. Thank You again Perry.