SOURCE: sony ht-sl5
The protect mode indicates that a problem was detected in the final stage of the output amplifier. The unit is shutdown to prevent further damage to either the amp or the speakers. I don't kow the specifics fo your model, but if it has discrete transistors for outputs, the parts cost will be in the $15-$25 range. If it have an AMP pac, expect parts to run in the $60-$75 range.
Dan
SOURCE: sony ht-sl5
If your problem is "switch on then after 10secounds shuts down and
protect appears on the display .and cannot do anything with it but turn
it off"
Then the unit is on protect mode, that is a special diagnostic mode that starts when the unit detects an internal fault.
To start unplug the unit from power for ten minutes, and see if this reset the protect mode, I guess you have done this already.
The
first thing to do is to start the unit with nothing connected, if the
unit does not go to protection, then the problem was one of the cables
or a connected device.
If that does not fix it , there is a
master reset , by pluggin the unit into main while at the same time you
hold the power button.
If still no luck then the unit is defective and must be taken apart and tested with a multimeter.
You
start checking for burnt areas on circuits, cold solder joints and
leaking capacitors at sight, then there is need to grab the multimeter
and do the real testing job.
When you find the problem you do the soldering.
Naturally this requires a certain experience in fixing electronics, to complete the job usually a precision soldering is needed.
SOURCE: SAMSUNG HT-TZ212 home cinema kit comes up with protect
Protect mode will kicking whenever a fault is detected.
Causes that can start protect mode are:
Electrostatic harges on internal circuits.
Leave the unit unplugged for power for one hour or so, this will allow discharge.
Bad speaker wiring.
Check speaker wiring, try unplugging and plugging back, or start after removing one speaker at the time.
Internal fault.
Internal
fault is the natural cause for protect mode. If all the above did not
work, then the problem is a blown component or an internal fault. In
this case the unit must be taken apart , tested and repaired by an
experienced person.
If the unit is less than one year old, or if you
want to get service, call Sony at the phone number listed on the
product documentation.
Regards.
SOURCE: my DVD HT-Q9
Protect mode will kick in whenever a fault is detected.
You get the unit not powering up, and sometimes you hear a clicking
noise, that is the protection switch that keeps shutting down the unit.
Causes that can start protect mode are:
Electrostatic harges on internal circuits.
Leave the unit unplugged for power for one hour or so, this will allow discharge.
Bad speaker wiring.
Check speaker wiring, try unplugging and plugging back, or start after removing one speaker at the time.
Internal fault.
Internal
fault is the natural cause for protect mode. If all the above did not
work, then the problem is a blown component or an internal fault. In
this case the unit must be taken apart , tested and repaired by an
experienced person.
If the unit is less than one year old, or if you
want to get service, call Sony at the phone number listed on the
product documentation.
Regards.
287 views
Usually answered in minutes!
×