electronics, repairs, service manuals and datasheets discussion community for the repairs professionals and technicians
FAQSearchMembersGroupsRegisterProfilePM'sLogin/Out
sony amplifier-receiver error mesage PROTECTOR
Goto page 1, 2  Next
 
Post new topic   Reply to topic    Electronic equipment repair and service manual search discussion Forum Index -> Equipment Repairs
View previous topic :: View next topic  
Author Message
andreas
Guest





PostPosted: Wed Mar 30, 2005 6:36 am    Post subject: sony amplifier-receiver error mesage PROTECTOR Reply with quote

hello i have a a sony receiver-amplifier str-db725 PROTECTOR is the mesage on the screen when switching on the device can anyone help me thanks in advance
Back to top
burg_69
Guest





PostPosted: Wed Mar 30, 2005 11:24 am    Post subject: Sony Amp. Reply with quote

Smile
My family also have one and I recall it coming up on theirs, have you gone through and checked all the settings, like speaker settings etc ( I assume it is 5.1ch receiver).

It happened when the volume was cranked to hard and then the word "Protector" appeared on the units display.

It should hopefully be like I said a simple setting, if unsure go through the manual and setup the unit again..
Back to top
andreas
Guest





PostPosted: Wed Mar 30, 2005 11:35 am    Post subject: Reply with quote

thanks burg 69 but the same problem apears with the vol off and no load.
Back to top
burg_69
Guest





PostPosted: Wed Mar 30, 2005 12:36 pm    Post subject: Sony Amp - The woes continue Reply with quote

Andreas,

Try removing every input and output and see what happens, then add them back one by one to see if the problem rears its ugly head, maybe one of the speaker cables or speakers is shorted.

Burg.
Back to top
Guest






PostPosted: Thu Jan 19, 2006 12:31 am    Post subject: Re: sony amplifier-receiver error mesage PROTECTOR Reply with quote

andreas wrote:
hello i have a a sony receiver-amplifier str-db725 PROTECTOR is the mesage on the screen when switching on the device can anyone help me thanks in advance
Back to top
CAOP
Guest





PostPosted: Tue Jan 24, 2006 9:50 pm    Post subject: Reply with quote

Hi Andreas! In your amplifier check the outputs Transistors and the voltages to them.
Back to top
Joentje



Joined: 23 Jan 2006
Posts: 11

PostPosted: Thu Feb 02, 2006 7:27 am    Post subject: Reply with quote

Check the driver-IC's for dry joints.
Back to top
View user's profile Send private message
mazmaz



Joined: 23 Jan 2005
Posts: 50

PostPosted: Fri Feb 03, 2006 4:00 am    Post subject: Reply with quote

Hi
Check regulated voltage lines +5,+12,-12 to right value
Check grounded points to main ground
Check Output transistors(darlingtons)
Back to top
View user's profile Send private message
onkel.tom
Guest





PostPosted: Tue Apr 25, 2006 3:39 pm    Post subject: STR-DB725QS Reply with quote

Hi Andreas

Have the servicemanual you need.
Check the solderpoints, its one of the most faults from Sony.

http://home.arcor.de/toms.mail/sony/Sony-STR-DB725-825QS.pdf

Greets Tom


Do you have the owners-manual?
Iv'e been looking for it...as scan?!
Back to top
Guest






PostPosted: Tue Apr 25, 2006 3:42 pm    Post subject: Re: STR-DB725QS Reply with quote

onkel.tom wrote:
Hi Andreas

Have the servicemanual you need.
Check the solderpoints, its one of the most faults from Sony.

http://home.arcor.de/toms.mail/sony/Sony-STR-DB725-825QS.pdf

Greets Tom


Do you have the owners-manual?
Iv'e been looking for it...as scan?!


Had anyone the two owners-manual for the receiver and the remotecontrol?

PLEASE send to [email protected]
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Electronic equipment repair and service manual search discussion Forum Index -> Equipment Repairs All times are GMT
Goto page 1, 2  Next
Page 1 of 2

 
Jump to:  
You can post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Електроника София - Service Manuals Free Download - Prikachi - Service Diagrams

Free TV Schematics Download - HARDW.net - Pinout Master - Jabse Search - Jabse.InK  - Pulsator

Connector Pinout Forum - Новини - SnimkiOt.com - безплатен DNS - Whois разузнаване - Poblizo.com : пътешествия