I have a Sony DAV-DZ100 Home theatre system. But from the very begining I have a problem on my FM tuning settings. Basically if I store all the FM stations after tuning with the help of the "Tuner Menu" button and then suppose I don't power on the system continuously for 5 days I find all the tunned stations are lost or errased from the memory and I need to tunned it all over again. This s my problem. Is there any solution to this problem? Thanks in advance.

SOURCE: sony dav-dz100

That means you have a bad speaker, speaker wire, or a componet in the output stage of the amp blew out. First thing to try is to disconnect all the speaker, Turn on the unit. If it still reads the same, you have a problem with the amp. these are solid state units and have no user replacable parts inside of them.. You will need to have it serviced or get a new unit, as to have these repaired or even estimated these days is very costly. Good Luck Please dont forget to rate this thread.

SOURCE: PROTECT UNPLUG

This is a common problem with sony it means unplug me or i will explode, it is a protection of the heat sync and usually means that a cooling fan has shorted out. If under gurentee return to Sony for repair if not under guranebntee as is generally the case check on the net for a replacement fan motor - as far as i know sony were sourcing thier fanns from Sunon there is a German based headquarters - just google sunon europe

SOURCE: Sony DVD Home theatre system

Hello,
lets perform special reset function in your home theater.
1= set to stand-by mode
2= press three buttons of "Stand-by, Function & Volume- " all togather.
3= you will see "Cold Reset" message on front display of set.
4= power up and enjoy ;)

SOURCE: why does push power protector keeps flashing in

This is an error massage and comes when home theater got some internal problem specially in amplifier output section that can have defective output IC etc.
It is not user level repair and requires qualified tech for fix.
Thanks.

SOURCE: I have a Bell 9242

Sorry but tried all the codes above in Bell remote. Non of them work the fx900w.