Sony STR-KM2 / STR-KM3 Service Manual ▷ View online
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.
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.
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.
k
m
z
dB
5. Turn the [INPUT SELECTOR] dial once again.
6. Test pattern 2 turn on.
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
x
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.
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.
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.
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 [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).
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:
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)
COAXIAL BD/DVD IN jack (J2301)
set
Procedure:
Normal case
1. While pressing [MOVIE] and [M-TURBO] buttons, press the
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.
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.
“UPDATING” is displayed blinks every one second.
From this step, all user operation is prohibited. Power off is
also prohibited.
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.
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.
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).
played continuously until any user operation).
STR-KM2/KM3
10
Procedure:
After update is abnormal exit, and set is power on again
1. Enter update mode automatically after power on.
2. The messages “UPDATE” and “PLAY.DISC” are displayed
1. Enter update mode automatically after power on.
2. The messages “UPDATE” and “PLAY.DISC” are displayed
alternately every one second.
From this step, all user operation is prohibited. Power off is
also prohibited.
also prohibited.
If main u-com was failed to update, nothing is displayed.
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. From this,
same as normal case.
same as normal case.
SPDIF UPDATE VERSION MODE
Function that displays the version number to check whether SPDIF
update is necessary or not.
Function that displays the version number to check whether SPDIF
update is necessary or not.
Procedure:
1. While pressing [MOVIE] and [MUSIC] buttons, press the
[
?/1
] button to turn on the main power.
2. The message “VER X.XXX” is displayed. “X.XXX” is calcu-
lated by adding all fi rmware version.
Example:
(MAIN ver. + DSP ver. + SOUND TUNE ver. + 7)/10 =
Displayed
version
MAIN = 1.02, DSP = 1.01, SOUND TUNE = 1.00
↓
(1.02 + 1.01 + 1.00 + 7)/10 = 1.003
1.003 = X.XXX
HISTORY MODE
The state that the set is used is memorized.
The state that the set is used is memorized.
Procedure:
1. While depressing the [SURROUND SPEAKER] and the
[GAMING] buttons simultaneously, press the [
?/1
] button to
turn on the main power.
2. “HISTORY”
appears.
3. Each time the [
V
] / [
v
] buttons on the remote control is pressed,
the item is switched in order as follows.
Items
Display
Protector Count
COUNT xx
Total Single Power On Time
xxxxxHxx 01
Surround Speaker Position
SURPOS X
Sound Field
SND FLD
Input Function
FUNCTION
Input Mode
INP MODE
Digital Select
DIG IN
Stream Information
STREAM
Signal Confi guration
CO xxxxx
Headphone
HP xxx
Volume
VOL xx
Bass
BASS xxx
Treble
TREB xxx
Level FL/FR
F xxxxxx
Level SL/SR
S xxxxxx
Level CT/SW
CWxxxxxx
Level BL/BR
B xxxxxx
Total Power ON Time
xxxxxHxx 02
Muting
MUTE xxx
Power ON Counter (Rebox Test Mode)
REBXxxxx
Protector Type
PROTxxxx
Temperature Record
TEM xxxx
VACS Step
VACS xx
PROTECTOR ON/OFF
*
*
To disable auto off after protector occur.
Procedure:
1. While depressing the [MOVIE] and the [GAMING] buttons
simultaneously, press the power [
?/1
] button to turn on the
main power.
2. “PROTEVER”
appears.
STR-KM2/KM3
11
SECTION 4
ELECTRICAL CHECK
FM AUTO STOP CHECK
signal
generator
set
Procedure:
1. Turn on the set.
2. Input the following signal from signal generator to FM antenna
2. Input the following signal from signal generator to FM antenna
input directly.
Carrier frequency : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation
Deviation
: 75 kHz
Modulation
: 1 kHz
Note: Use 75 ohm coaxial cable to connect signal generator and the set.
You cannot use video cable for checking.
Use signal generator whose output impedance is 75 ohm.
3. Set to FM tuner function and scan the input FM signal with
automatic scanning.
4. Confi rm that input frequency of A, B and C are detected and
automatic scanning stops.
When the station signal is received in good condition, automatic
scanning stops.
scanning stops.
STR-KM2/KM3
12
• Abbreviation
AR :
AR :
Argentina
model
SAF : South African model
SECTION 5
DIAGRAMS
• Circuit Boards Location
POWER KEY board
LED BAR board
DISPLAY board
POWER AVIDEO board
DCDC board
TUNER1 board
HDMI RE board
(KM3)
(KM3)
DIGITAL AUDIO board
MAIN board
THERMAL board
USB board
(except SAF, AR)
(except SAF, AR)
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