STR-KM2, STR-KM3 - Sony Audio Service Manual (repair manual). Page 9

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STR-KM2/KM3
9
SECTION  3
TEST  MODE
FL  CHECK  MODE
All fl uorescent segments are tested. When this test is activated, all 
segments turn on at the same time, then each segment turns on one 
after another.
Procedure:
1.  When pressing the [SURROUND SPEAKER] and [M-TURBO]
buttons, press the [
?/1
] button to turn on the main power. 
2.  All segments turn on.
L
C
R
SL
S
SR
SBL SB SBR
LH
RH
SW
COAX
OPT
HDMI
LFE
DTS -ES
NEO:6 USB
96/24
DTS-HD MSTR HI RES
LBR
LPCM
RDS
AAC
TrueHD
SLEEP
D.RANGE
ST
D
PL II
+ EX
MHz
ft.
k Hz m
x z
dB
 
3.  Turn the [INPUT SELECTOR] dial. 
4.  Test pattern 1 turn on.
L
C
R
SL
S
SR
SBL
SB
SBR
LH
RH
SW
COAX
OPT
HDMI
LFE
DTS -ES
NEO:6 S-AIR
96/24
DTS-HD MSTR HI RES
LBR
LPCM
AAC
TrueHD
SLEEP
D.RANGE
PL
ft.
m
 z
dB
 
5.  Turn the [INPUT SELECTOR] dial once again. 
6.  Test pattern 2 turn on.
L
R
S
SBL
SBR
LH
RH
SW
COAX
OPT
HDMI
LFE
DTS -ES
NEO:6 USB
96/24
DTS-HD MSTR HI RES
LBR
LPCM
RDS
TrueHD
SLEEP
D.RANGE
ST
D
PL II
 EX
MHz
Hz
 
7.  Turn the [INPUT SELECTOR] dial once again. All segments 
turn off. 
8.  Every turning of the [INPUT SELECTOR] dial turns on each 
segment one after another on the same order.
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.
Procedure:
1.  While pressing the [MUSIC] button, press the [
?/1
] button to 
turn on the main power. 
2.  The message “S.F. CLEAR” appears and initialization is per-
formed. 
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.
Procedure:
1.  Hold the [
?/1
] for 5 seconds.
2.  The message “CLEARING” appears on the display.
3.  After a few seconds, “CLEARED” appears.
SOFTWARE  VERSION  DISPLAY  MODE
The software version is displayed.
Procedure:
1.  While pressing the [SURROUND SPEAKER] and [MUSIC] 
buttons, press the [
?/1
] button to turn on the main power.
2.  The message “M2**Mx.xx” appears. This is main micropro-
cessor version (KM2).
 
The message “M3**Mx.xx” appears. This is main micropro-
cessor version (KM3).
 
**: destination, x.xx: software version
3.  Press the [DISPLAY] button on the remote commander, 
DSP fi rmware version 
 
“S. VER x.xx” appears.
 
Sound tuning version 
 
“M2 ST x.xx” appears (KM2).
 
“M3 ST x.xx” appears (KM3).
 Tuner 
Version 
 
“T.VER x.xx” appears.
SPDIF  UPDATE  MODE
User plays the CD that contains u-com/DSP data with CD/DVD 
player.
Update u-com/DSP etc. fi rmware from SPDIF input.
Connection:
CD/DVD
player
DIGITAL board
COAXIAL BD/DVD IN jack (J2301)
set
Procedure:
Normal case
1.  While pressing [MOVIE] and [M-TURBO] buttons, press the 
[
?/1
] button to turn on the main power.
2.  The messages “UPDATE” and “PLAY.DISC” are displayed 
alternately every one second.
 
After this step, all user operation is prohibited except power 
off. To cancel this mode, power off or AC power cord pull out 
is required.
3.  Connect CD player to COAXIAL BD/DVD IN jack (J2301 on 
the DIGITAL board), and play update CD.
 
Update is started when DSP detect update signal. The message 
“UPDATING” is displayed blinks every one second.
 
From this step, all user operation is prohibited. Power off is 
also prohibited.
4.  While main u-com is being updated, fl uorescent indicator tube 
is blacked out.
5.  When update data error is detected or disc is not matched with 
target model, error messages “DISC ERR” and “PLAY.DISC” 
are displayed to restart playing valid CD.
 When 
fl 
ash writing error is happened, error messages 
“UPT. ERR” and “PLAY.DISC” are displayed to restart play-
ing CD.
6.  When all update is fi nished, set is reboot automatically. After 
reboot, complete message “COMPLETE” is displayed (dis-
played continuously until any user operation).
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