No sound on my sony MHC RV5 - Sony Audio Players & Recorders

STK402, IC501.
Part number 8-749-016-96

Could be an open internal fuse or power supply failure

It is mobile phone system's problem, you can try to mobile phone shop where to install system. Instead of Stereo Earphone problem.

Check the speaker wires for shorts, If okay! the audio output chips should suspect.

http://www.retrevo.com/support/Sony-MHC-GX450-manual/id/268ag305/t/2/


Look up "Hooking Up Optional Components" and assess what your PC's audio and video capabilities are that would use the Game Inputs. The Sony end accepts standard RCA pin cables x 3. Adapters are available at any electronics store to match your PC to that. Within the PC you need to configure the audio via whatever Sound Controls are in charge.

Please compare it here :
www.productwiki.com/sony-mhc-gx99/
www.hawkee.com/shop/prod/5867454/
My preference is ec99i,
Regards

Change the audio amplifier IC

After installing the cd display shows the Push Power in the model of MHC-RV5

http://www.thefakegeek.com/2009/05/how-to-fix-your-home-theatre-system-when-it-says-push-power-protector/

what is push power protector message on sony bravia theatre all about and...

Little Known Way To Solve Sony Mini Hi Fi Push Power Protect Problem

Perhaps one of the above ways can fix your system and help you understand what has happened.

The repair manual can be purchased from Sony. What is the specific problem. Perhaps a manual is not needed.
Dan