Sony HT-MT300, Service Manual

Page: 18 / 40

HT-MT300/MT301
18
SECTION 3
TEST MODE
Button and LED position:
front side
Button position
LED position
RESET
It can return the main unit to setting to the initial state.
Procedure:
1. Touch the [
1
] button to turn the power on.
2. Touch the two buttons of the [–] and [
1
] at the same time for
about 5 seconds.
3. The all LEDs are fl ash 3 times.
Flash 3 times
4. The reset is completed, then main unit is restart.
DEMO MODE
The demo mode can be performed.
There are two methods of main unit operation and remote control
operation.
Note 1: It can not be operated with the remote control included with this
main unit.
Please use the following remote control.
Example:
REMOTE COMMANDER RMT-AH240U
(Part No.: 1-493-142-11)
REMOTE COMMANDER RMT-AH240E
(Part No.: 1-493-143-11)
In addition to the above remote control, it is possible to operate
if the remote control has the [RETURN] or [BACK] button, [IN-
PUT] ([INPUT +]) button, [MUTING] ([
%
]) button.
Procedure:
1. Touch the [
1
] button to turn the power on.
2. Perform a mode in operation with either the main unit or re-
mote control.
For the main unit operation:
Touch the two buttons of the [ ] and [–] at the same time for
about 5 seconds.
For the remote control operation:
Press the buttons on the remote control in the following order.
[RETURN] (or [BACK])

[ENTER]

[INPUT]

[MUT-
ING]

[INPUT]

[MUTING]
3. The LEDs light up/ fl ash as shown in the following fi gure.
Light up in order from the left side
Flash 3 times
4. Enter the demo mode, then changed to the following setting for
demo mode and return to the normal display (function LED is
light up).
• Function : TV
• Volume : 31
• Sound fi eld : CLEAR AUDIO+
• Subwoofer volume : 8
• Muting : OFF
• Night mode : OFF
• Voice : OFF
• Dual Mono : MAIN
Note 2:
When demo mode is performed, the operation of the [
1
] button
on the main unit and remote control is invalid. Also, when insert
the AC power cord into the wall outlet in the demo mode state, the
power is automatically turned on and the demo mode is entered.
Releasing method:
Perform the “RESET” to release the demo mode.
Note 3: The demo mode does not release by unplug the AC power cord.
USB UPDATE MODE
This mode is guided by technical news, when update occurs.