Read Sony STR-KM22 / STR-KM55 / STR-KM77 Service Manual online
STR-KM22/KM55/KM77
11
SECTION 3
TEST MODE
FL CHECK MODE
All fl uorescent segments are tested. When this test is activated, all
segments light on at the same time, then each segment light on one
after another.
All fl uorescent segments are tested. When this test is activated, all
segments light on at the same time, then each segment light on one
after another.
Procedure:
1. When pressing the [SPEAKER SETTING] and [M-TURBO]
buttons, press the [?/1] button to turn on the main power.
2. All segments light on.
D.RANGE ARC
OPT BT
OPT BT
COAX
HDMI
USB
LPCM
DTS
ST
SLEEP
D
96/24
MHz
PL II
dB
k Hz
3. Press the [DISPLAY] button to confi rm display as below.
D.RANGE ARC
BT
HDMI
LPCM
D
PL
k
4. Press the [DISPLAY] button to confi rm display as below.
OPT
COAX
USB
DTS
ST
SLEEP
96/24
MHz
II
dB
5. Press the [DISPLAY] button, all segments light off.
S.F. CLEAR MODE
The preset sound fi led is cleared when this mode is activated. Use
this mode before returning the product to clients upon completion
of repair.
The preset sound fi led is cleared when this mode is activated. Use
this mode before returning the product to clients upon completion
of repair.
Procedure:
1. While pressing the [MUSIC/VIDEO] button, press the [?/1]
button to turn on the main power.
2. The message “S.F. CLEAR” appears and initialization is
performed.
PROTECTOR AUTO OFF
To disable auto off after protector occur.
To disable auto off after protector occur.
Procedure:
1. While depressing the [MUSIC/VIDEO] and the [FOOTBALL]
buttons simultaneously, press the power [?/1] button to turn
on the main power.
on the main power.
2. “PROTEVER”
appears.
HISTORY MODE
The state that the set is used is memorized.
The state that the set is used is memorized.
Procedure:
1. Set the input function to FM TUNER and turn OFF the
receiver.
2. While depressing the [SPEAKER SETTING] and the
[FOOTBALL] buttons simultaneously, press the [?/1] button
to turn on the main power.
to turn on the main power.
3. “HISTORY”
appears.
4. Each time the [
V] / [v] buttons on the remote commander is
pressed, the item is switched in order as follows.
Items
Display
Protector Count
C
O
U
N
T
x
x
x
Total Power ON
time
time
T
x
x
x
x
x
H
x
x
M
Main Power On
M
x
x
x
x
x
H
x
x
M
Protector type
P
R
O
T
x
x
x
x
Sound Field
S
N
D
F
I
E
L
D
Function
F
U
N
C
T
I
O
N
Digital Select
D
I
G
S
E
L
E
C
T
Stream
S
T
R
E
A
M
I
N
F
O
Volume
V
O
L
x
x
Muting
M
U
T
I
N
G
x
x
Bass
B
A
S
S
x
x
x
Treble
T
R
E
B
x
x
x
M-Turbo
M
-
T
U
R
B
O
Speaker
Setting
Setting
S
P
K.
S
E
T
T
I
N
G
Narration
Cancel
Cancel
N
A
R.
C
A
N
C
E
L
Front Level
F
x
x
x
/
x
x
x
Center Level
C
x
x
x
/
x
x
x
Surround Level
S
x
x
x
/
x
x
x
Surround Back
Level
(STR-KM77)
Level
(STR-KM77)
B
x
x
x
/
x
x
x
Temperature
T
E
M
P
Total Power On
T
x
x
x
x
x
H
x
x
M
Main Power On
M
x
x
x
x
x
H
x
x
M
Power On
Count
Count
R
E
B
O
X
x
x
USER INITIALIZE MODE
All preset contents are cleared when this mode is activated. Use
this mode before returning the product to clients upon completion
of repair.
All preset contents are cleared when this mode is activated. Use
this mode before returning the product to clients upon completion
of repair.
Procedure:
1. Hold the [?/1] for 5 seconds.
2. The message “CLEARING” appears on the display.
3. After a few seconds, “CLEARED” appears.
2. The message “CLEARING” appears on the display.
3. After a few seconds, “CLEARED” appears.
SOFTWARE VERSION DISPLAY MODE
The software version is displayed.
The software version is displayed.
Procedure:
1. While pressing the [SPEAKER SETTING] and [GAME]
buttons, press the [?/1] button to turn on the main power.
2. The message “MV2 **” appears. This is main microprocessor
version (KM22).
The message “MV5 **” appears. This is main microprocessor
version (KM55).
version (KM55).
The message “MV7 **” appears. This is main microprocessor
version (KM77).
version (KM77).
3. Each time the [DISPLAY] button is pressed, “SYS. vx.xxx”,
“MAIN vx.xx”, “VIDEO vx.xx”, “SFLASH vx.xx”, “STUNE
vx.xx”, BTM vx.xx and BTL vx.xx appear in this order, and
returns to the “MV** xxx” display.
vx.xx”, BTM vx.xx and BTL vx.xx appear in this order, and
returns to the “MV** xxx” display.
**: destination, x.xxx: software version
USB UPDATE TEST MODE
To update micontroller software through USB.
To update micontroller software through USB.
Procedure:
1. Plug in USB device during set at Power OFF condition.
2. Hold the [?/1] for 5 seconds.
3. The message “CLEARING” appears on the display.
4. After a few seconds, “CLEARED” appears.
2. Hold the [?/1] for 5 seconds.
3. The message “CLEARING” appears on the display.
4. After a few seconds, “CLEARED” appears.
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