Sony STR-DG910 Service Manual ▷ View online
13
STR-DG910
2-7. STANDBY BOARD
2-6. MAIN BOARD SECTION
3
CNP826 (7P)
4
CNP824 (4P)
5
CNP828 (6P)
1
CNP804 (3P)
2
CNP823 (5P)
6
two screws
(+BV3 (3
-CR))
7
two screws
(+BV3 (3
-CR))
8
screw
(+BV3 (3
-CR))
9
MAIN board section
3
screw
(+BVTP 3
×
8)
4
STANDBY board
1
CNP902 (2P)
2
CNP805 (3P)
14
STR-DG910
SECTION 3
TEST MODE
AM CHANNEL STEP 9 kHz/10 kHz SELECTION
MODE (US, Canadian, E2 model only)
MODE (US, Canadian, E2 model only)
* Either the 9 kHz step or 10 kHz step can be selected for the AM
channel step.
* Procedure:
Turn the [INPUT SELECTOR] control to set AM and press the
?/1
button to turn off the main power.
While depressing the [TUNING MODE] button, press the
?/1
button to turn on the main power.
Either the message “9k STEP” or “10k STEP” appears for a
moment and select the desired step.
Either the message “9k STEP” or “10k STEP” appears for a
moment and select the desired step.
VACUUM FLUORESCENT DISPLAY TEST MODE
* All fluorescent segments are tested.
When this test is activated, all segments light on at the same
time, then each segment lights on one after another.
time, then each segment lights on one after another.
* Procedure:
While depressing the [TUNING MODE] and the [DISPLAY] but-
tons simultaneously, press the
tons simultaneously, press the
?/1
button to turn on the main
power.
1. ALL segments light on.
[MULTI CHANNEL DECODING] LED light on.
2. Turn the [INPUT SELECTOR] control, confirm display.
[MULTI CHANNEL DECODING] LED light off.
3. Turn the [INPUT SELECTOR] control, confirm display.
[MULTI CHANNEL DECODING] LED light on.
4. Turn the [INPUT SELECTOR] control, all segments and LED
light off.
SOUND FIELD CLEAR MODE
* The preset sound field is cleared when this mode is activated.
Use this mode before returning the product to clients upon
completion of repair.
completion of repair.
* Procedure:
While depressing the [2CH] button, press the
?/1
button to turn
on the main power.
The message “S.F. CLR.” appears for a moment and initializa-
tion is performed.
The message “S.F. CLR.” appears for a moment and initializa-
tion is performed.
SOFTWARE VERSION DISPLAY MODE
* The software version is displayed.
* Procedure:
* Procedure:
While depressing the [SPEAKERS $OFF/A/B/A+B%] and the
[DISPLAY] buttons simultaneously, press the
[DISPLAY] buttons simultaneously, press the
?/1
button to turn
on the main power.
The model name, destination and the software version are dis-
played for a moment.
The model name, destination and the software version are dis-
played for a moment.
KEY CHECK MODE
* Button check
* Procedure:
* Procedure:
While depressing the [SPEAKERS $OFF/A/B/A+B%] and the [2CH]
buttons simultaneously, press the
buttons simultaneously, press the
?/1
button to turn on the
main power.
Either the message “REST 15” appears.
Every pressing of any button other than the
Either the message “REST 15” appears.
Every pressing of any button other than the
?/1
counts down
the buttons. The buttons which are already counted once are not
counted again. When all buttons are pressed “REST 00” appears.
counted again. When all buttons are pressed “REST 00” appears.
SWAP ALL MODE
* The signal will be swap to all channel so that all speaker will
have sound output.
* Procedure:
1. While depressing the [SPEAKERS $OFF/A/B/A+B%] and the
1. While depressing the [SPEAKERS $OFF/A/B/A+B%] and the
[A.F.D.] buttons simultaneously, press the power
?/1
button to
turn on the main power.
2. “SWAP” appears. (No change while displayed.)
SHIPMENT MODE
All preset contents are reset to the default setting.
* Procedure:
1. While depressing the [SPEAKERS $OFF/A/B/A+B%] and the
* Procedure:
1. While depressing the [SPEAKERS $OFF/A/B/A+B%] and the
[MUSIC] buttons simultaneously, press the power
?/1
button
to turn on the main power.
2. “CLEARED” appears and switch off the set.
DCAC TEST MODE
1. When power off:
Press the three buttons [TONE MODE] + [2CH] +
?/1
.
“MIC ON” appears.
2. Plug in DCAC MIC and test sound output from front speaker.
L
SW
C
R
SL
S
SR
SBL
SB SBR
LFE
SP A
NEO:6
COAX
HDMI
DEX
DTS -ES
x
II
PL
RDS ST
CAT
96/24
MONO
D.RANGE
SAT
D D
D D
PL OPT
D D
dB
Hz
k
ft.
m
MHz
MEMORY
SP B
L
R
S
LFE
NEO:6
COAX
HDMI
EX
-ES
x
RDS
MONO
D.RANGE
SAT
k
m
MHz
SP B
LFE
SP A
NEO:6
COAX
HDMI
EX
-ES
x
II
PL
ST
CAT
96/24
MONO
D.RANGE
SAT
D D
OPT
dB
Hz
ft.
MEMORY
SP B
15
STR-DG910
SECTION 4
FM TUNER CHECK
FM AUTO STOP CHECK
(1) Turn on the set.
(2) Input the following signal from Signal Generator to FM
(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
ANT input : 35 dBu (EMF)
ANT input : 35 dBu (EMF)
(Note)
Please use 75 ohm “coaxial cable” to connect SG and the set. You
cannot use video cable for checking.
Please use SG whose output impedance is 75 ohm.
cannot use video cable for checking.
Please use SG whose output impedance is 75 ohm.
(3) Set to FM tuner function and scan the input FM signal with
automatic scanning.
(4) Confirm that input Frequency of A, B and C are detected and
automatic scanning stops.
The stop of automatic scanning means “The station signal is
received in good condition.”
received in good condition.”
16
STR-DG910
• Circuit Boards Location
SECTION 5
DIAGRAMS
MAIN board
DIGITAL board
HDMI RE board
XM board
(US, Canadian model)
(US, Canadian model)
VIDEO board
DCDC board
DISPLAY board
POWER KEY board
DCAC board
HEADPHONE board
VIDEO 3 board
STANDBY board
AC SELECT board
(E2 model)
(E2 model)
SPEAKER board
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