DOWNLOAD Sony STR-DG910 Service Manual ↓ Size: 9.98 MB | Pages: 106 in PDF or view online for FREE

Model
STR-DG910
Pages
106
Size
9.98 MB
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PDF
Document
Service Manual
Brand
Device
Audio
File
str-dg910.pdf
Date

Sony STR-DG910 Service Manual ▷ View online

2
STR-DG910
Models of area code E2, TW
 1)
Minimum RMS Output Power (8 ohms, 20 Hz –
20 kHz, THD 0.09%)
85 W + 85 W
 1)
Stereo Mode Output Power (8 ohms, 1 kHz,
THD 1%)
100 W + 100 W
 1)
Surround Mode Output Power
 2)
 (8 ohms, 1 kHz,
THD 10%)
130 W per channel
 1)
Models of area code KR
 1)
Minimum RMS Output Power (8 ohms, 20 Hz –
20 kHz, THD 0.09%)
90 W + 90 W
 1)
,
80 W + 80 W
 3)
Stereo Mode Output Power (8 ohms, 1 kHz,
THD 1%)
100 W + 100 W
 1)
,
90 W + 90 W
 3)
Surround Mode Output Power
 2)
 (8 ohms, 1 kHz,
THD 10%)
140 W per channel
 1)
,
120 W per channel
 3)
1) Measured under the following conditions:
Area code
Power requirements
US, CND
120 V AC, 60 Hz
AEP, UK, KR
230 V AC, 50 Hz
E2
240 V AC, 50 Hz
TW
110 V AC, 60 Hz
2) Reference power output for front, center, surround and
surround back speakers. Depending on the sound field
settings and the source, there may be no sound output.
3) Measured under the following conditions:
220 V AC, 60 Hz
Frequency response
Analog
10 Hz – 70 kHz
+0.5/–2 dB (with sound
field and equalizer bypassed)
Inputs
Analog
Sensitivity: 500 mV/
50 kohms
S/N
 3)
 : 96 dB
(A, 500 mV
 4)
 )
Digital (Coaxial)
Impedance: 75 ohms
S/N: 100 dB
(A, 20 kHz LPF)
Digital (Optical)
S/N: 100 dB
(A, 20 kHz LPF)
Output (Analog)
AUDIO OUT
Voltage: 500 mV/10 kohms
SUB WOOFER
Voltage: 2 V/1 kohm
Equalizer
Gain levels
±10 dB, 0.5 dB step
4) INPUT SHORT (with sound field and equalizer
bypassed).
5) Weighted network, input level.
FM tuner section
Tuning range
87.5 – 108.0 MHz
Antenna
FM wire antenna
Antenna terminals
75 ohms, unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
Models of area code US, CND
With 10-kHz tuning scale: 530 – 1,710 kHz
 6)
With 9-kHz tuning scale: 531 – 1,710 kHz
 6)
Models of area code AEP, UK, KR, TW
With 9-kHz tuning scale: 531 – 1,602 kHz
Models of area code E2
With 9-kHz tuning scale: 531 – 1,602 kHz
 6)
With 10-kHz tuning scale: 530 – 1,610 kHz
 6)
Antenna
Loop antenna
Intermediate frequency
450 kHz
6) You can change the AM tuning scale to 9 kHz or 10 kHz.
After tuning in any AM station, turn off the receiver. While
holding down TUNING MODE, press ?/1. All preset
stations will be erased when you change the tuning scale.
To reset the scale to 10 kHz (or 9 kHz), repeat the
procedure.
Video section
Inputs/Outputs
Video:
1 Vp-p/75 ohms
COMPONENT VIDEO:
Y: 1 Vp-p/75 ohms
P
B
/C
B
: 0.7 Vp-p/
75 ohms
P
R
/C
R
: 0.7 Vp-p/
75 ohms
80 MHz HD Pass Through
General
Power requirements
Area code
Power requirements
US, CND
120 V AC, 60 Hz
AEP, UK
230 V AC, 50/60 Hz
E2
120/220/240 V AC, 50/60 Hz
KR
220 – 230 V AC, 50/60 Hz
TW
110 V AC, 60 Hz
Power output (DIGITAL MEDIA PORT)
DC OUT
5 V, 700 mA
Power consumption
Area code
Power consumption
US
260 W
CND
360 VA
AEP, UK, KR
230 W
E2
270 W
TW
650 W
Power consumption (during standby mode)
0.3 W (When “CONTROL”
 in VIDEO menu is set to
“CTRL OFF”)
AC outlets
Area code
AC outlets
US, CND
2 switched, 120 W/1A MAX
E2
1 switched, 100 W/0.4 A MAX
Dimensions (w/h/d) (Approx.)
430 
× 157.5 × 351.5 mm
(17 
× 6 
1/4
 
× 13 
7/8
inches) including
projecting parts and
controls
Mass (Approx.)
10.6 kg (23 lb 6 oz)
(Except E2, KR)
11.2 kg (24 lb 11 oz) (E2, KR)
Supplied accessories
FM wire antenna (1)
AM loop antenna (1)
Remote commander RM-AAP016 (1) (US, CND)
Remote commander RM-AAP017 (1) (AEP, UK, E2, KR,
TW)
R6 (size-AA) batteries (2)
Optimizer microphone ECM-AC2 (1)
Design and specifications are subject to change
without notice.
• Abbreviation
CND : Canadian model
E2
: AC 120 V area in E model
KR
: Korea model
TW : Taiwan model
Ver. 1.1
3
STR-DG910
SAFETY-RELATED  COMPONENT  WARNING!!
COMPONENTS  IDENTIFIED  BY  MARK  
0
  OR  DOTTED  LINE
WITH  MARK  
0
  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN
THE  PARTS  LIST  ARE  CRITICAL  TO  SAFE  OPERATION.
REPLACE  THESE  COMPONENTS  WITH  SONY  PARTS  WHOSE
PART  NUMBERS  APPEAR  AS  SHOWN  IN  THIS  MANUAL  OR
IN  SUPPLEMENTS  PUBLISHED  BY  SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
 À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 
0
 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE  DES PIÈCES
SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT.
NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES
SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL
OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
1.5 k
0.15 
µ
F
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
SAFETY  CHECK-OUT (US MODEL)
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE  TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microampers.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able.  (See Fig. A)
Fig. A.  Using an AC voltmeter to check AC leakage.
MODEL IDENTIFICATION
— BACK PANEL —
Part No.
MODEL
PART No.
US, CND
3-094-429-0s
AEP, UK
3-094-429-1s
E2
3-094-429-2s
KR
3-094-429-4s
TW
3-094-429-5s
• Abbreviation
CND : Canadian model
E2
: AC 120 V area in E model
KR : Korea model
TW : Taiwan model
NOTE OF REPLACING THE IC3511 AND IC3513 ON THE
HDMI RE BOARD
When IC3511 and IC3513 on the HDMI RE board are damaged,
exchange the new HDMI RE board for the HDMI RE board which
IC damaged. When throwing away the HDMI RE board, be sure to
throw away after destroying IC3511 and IC3513 physically with
the hammer etc.
Ver. 1.1
4
STR-DG910
TABLE OF CONTENTS
1. GENERAL
Description and location of parts (US, Canadian model) ........ 5
Description and location of parts (AEP, UK, E2 model) ......... 7
2. DISASSEMBLY
2-1.   Case ................................................................................... 10
2-2.   HDMI RE Board ............................................................... 11
2-3.   Back Panel Section ............................................................ 11
2-4.   Front Panel Section ........................................................... 12
2-5.   DIGITAL Board ................................................................ 12
2-6.   MAIN Board Section ........................................................ 13
2-7.   STANDBY Board ............................................................. 13
3. TEST MODE
..................................................................... 14
4. FM TUNER CHECK
....................................................... 15
5. DIAGRAMS
5-1.   Block Diagram – Tuner/Audio Section – .......................... 17
5-2.   Block Diagram – Digital Section – ................................... 18
5-3.   Block Diagram – Video Section – ..................................... 19
5-4.   Block Diagram – HDMI SW Section – ............................. 20
5-5.   Block Diagram – XM Section (US, Canadian Model) – .. 21
5-6.   Block Diagram – Key/Display Section – .......................... 22
5-7.   Block Diagram – Power Section – .................................... 23
5-8.   Printed Wiring Boards – Main Section – .......................... 25
5-9.   Schematic Diagram – Main Section (1/4) – ...................... 26
5-10. Schematic Diagram – Main Section (2/4) – ...................... 27
5-11. Schematic Diagram – Main Section (3/4) – ...................... 28
5-12. Schematic Diagram – Main Section (4/4) – ...................... 29
5-13. Printed Wiring Board – Digital Section (1/2) – ................ 30
5-14. Printed Wiring Board – Digital Section (2/2) – ................ 31
5-15. Schematic Diagram – Digital Section (1/5) – ................... 32
5-16. Schematic Diagram – Digital Section (2/5) – ................... 33
5-17. Schematic Diagram – Digital Section (3/5) – ................... 34
5-18. Schematic Diagram – Digital Section (4/5) – ................... 35
5-19. Schematic Diagram – Digital Section (5/5) – ................... 36
5-20. Printed Wiring Board – Video Section (1/2) – .................. 37
5-21. Printed Wiring Boards – Video Section (2/2) – ................. 38
5-22. Schematic Diagram – Video Section (1/2) – ..................... 39
5-23. Schematic Diagram – Video Section (2/2) – ..................... 40
5-24. Printed Wiring Board – HDMI RE Section (1/2) – ........... 41
5-25. Printed Wiring Board – HDMI RE Section (2/2) – ........... 42
5-26. Schematic Diagram – HDMI RE Section (1/4) – .............. 43
5-27. Schematic Diagram – HDMI RE Section (2/4) – .............. 44
5-28. Schematic Diagram – HDMI RE Section (3/4) – .............. 45
5-29. Schematic Diagram – HDMI RE Section (4/4) – .............. 46
5-30. Printed Wiring Board
    – XM Section (US, Canadian Model) – ............................ 47
5-31. Schematic Diagram
    – XM Section (US, Canadian Model) – ............................ 48
5-32. Printed Wiring Board – Front Speaker Section – .............. 49
5-33. Schematic Diagram – Front Speaker Section – ................. 49
5-34. Printed Wiring Boards – DCAC, Power Key Section – .... 50
5-35. Schematic Diagram – DCAC, Power Key Section – ........ 50
5-36. Printed Wiring Board – Display Section – ........................ 51
5-37. Schematic Diagram – Display Section – ........................... 52
5-38. Printed Wiring Boards – Power Section – ......................... 53
5-39. Schematic Diagram – Power Section – ............................. 54
5-40. Printed Wiring Board – DCDC Section – ......................... 55
5-41. Schematic Diagram – DCDC Section – ............................ 55
6. EXPLODED VIEWS
6-1.   Case Section ...................................................................... 74
6-2.   Front Panel Section ........................................................... 75
6-3.   Back Panel Section ............................................................ 76
6-4.   Chassis Section ................................................................. 77
7. ELECTRICAL PARTS LIST
........................................ 78
5
STR-DG910
SECTION 1
GENERAL
This section is extracted
from instruction manual.
US, Canadian model:
5
US
Getting Star
ted
Description and location of parts
.
Getting Started
Front panel
?/1
AUTO CAL MIC
SPEAKERS
(OFF/A/B/A+B)
PHONES
VIDEO 3 IN/PORTABLE AV IN
VIDEO
L  AUDIO   R
MEMORY/
ENTER
CATEGORY
MODE
CATEGORY
2CH
A.F.D.
MOVIE
MUSIC
AUTO CAL
DIRECT
INPUT SELECTOR
TONE MODE
TUNING
TONE
6
7
4
8
qs
qd
1
3
2
5
9
q;
qa
qf
qg
w;
qh
ql
wa
qj
qk
TUNING MODE
MULTI CHANNEL DECODING
DISPLAY
INPUT MODE
MASTER VOLUME
?/1
AUTO CAL MIC
SPEAKERS
(OFF/A/B/A+B)
PHONES
VIDEO 3 IN/PORTABLE AV IN
VIDEO
L  AUDIO   R
MEMORY/
ENTER
CATEGORY
MODE
CATEGORY
2CH
A.F.D.
MOVIE
MUSIC
AUTO CAL
DIRECT
INPUT SELECTOR
TONE MODE
TUNING
TONE
6
7
4
8
qs
qd
1
3
2
5
9
q;
qa
qf
qg
w;
qh
ql
wa
qj
qk
TUNING MODE
MULTI CHANNEL DECODING
DISPLAY
INPUT MODE
MASTER VOLUME
?/1
AUTO CAL MIC
SPEAKERS
(OFF/A/B/A+B)
PHONES
VIDEO 3 IN/PORTABLE AV IN
VIDEO
L  AUDIO   R
MEMORY/
ENTER
CATEGORY
MODE
CATEGORY
2CH
A.F.D.
MOVIE
MUSIC
AUTO CAL
DIRECT
INPUT SELECTOR
TONE MODE
TUNING
TONE
6
7
4
8
qs
qd
1
3
2
5
9
q;
qa
qf
qg
w;
qh
ql
wa
qj
qk
TUNING MODE
MULTI CHANNEL DECODING
DISPLAY
INPUT MODE
MASTER VOLUME
Name
Function
A
 
?
/
1
(on/standby)
Press to turn the receiver on 
or off (page 32, 43, 44, 66).
B
SPEAKERS 
(OFF/A/B/A+B)
Press to select the speaker 
system (page 33).
C
TONE MODE
Adjusts the tonal quality 
(bass/treble level) of the 
front speakers.
Press TONE MODE 
repeatedly to select bass or 
treble level, then turn 
TONE +/– to adjust the 
level (page 46).
TONE +/–
D
TUNING MODE
Press to select the tuning 
mode (page 67, 69, 72–74).
E
TUNING +/–
Turn to scan a station (page 
67, 69, 72–74).
Name
Function
F
Display
The current status of the 
selected component or a list 
of selectable items appears 
here (page 7). 
G
MULTI 
CHANNEL 
DECODING lamp
Lights up when multi 
channel audio signals are 
decoded (page 44).
H
Remote sensor
Receives signals from 
remote commander.
I
DISPLAY
Press to select information 
displayed on the display 
(page 74, 83).
J
INPUT MODE
Press to select the input 
mode when the same 
components are connected 
to both digital and analog 
jacks (page 78).
continued
6
US
Name
Function
K
MASTER 
VOLUME
Turn to adjust the volume 
level of all speakers at the 
same time (page 40, 41, 43, 
44).
L
DIRECT
Press to listen to high 
quality analog sound (page 
65).
M
AUTO CAL
Press to activate the Auto 
Calibration function (page 
36).
N
INPUT 
SELECTOR
Turn to select the input 
source to playback (page 
41).
O
2CH
Press to select a sound field 
(page 60, 62, 65).
A.F.D.
MOVIE
MUSIC
P
CATEGORY +/–
Press to select a category 
for XM Radio (page 74).
Q
CATEGORY 
MODE
Press to select the category 
mode for XM Radio (page 
73).
R
MEMORY/
ENTER
Press to store a station or 
enter the selection when 
selecting the settings (page 
32, 68, 75).
S
VIDEO 3 IN/
PORTABLE AV 
IN jacks
Connects to a camcorder or 
video game (page 28, 41).
T
PHONES jack
Connects to headphones 
(page 94).
U
AUTO CAL MIC 
jack
Connects to the supplied 
optimizer microphone for 
the Auto Calibration 
function (page 35).
7
US
Getting Star
ted
About the indicators on the display
SBR
SBL SB
SW
LFE
SP B
L
C
SL
S
R
SR
SP A
;
D EX
;
PL IIx
;
PL
OPT
DTS
 
-ES 9 6 / 2 4
COAX
HDMI
NEO:6
MEMORY
 ST
CAT
MONO
D.RANGE
1
2
3
4
5
7
6
8
qa
q;
9
qs
qd
qj
qg
qh
qf
Name
Function
A
SW
Lights up when sub woofer is 
set to “YES” (page 48) and the 
audio signal is output from the 
SUB WOOFER jacks.
B
LFE
Lights up when the disc being 
played back contains an LFE 
(Low Frequency Effect) 
channel and the LFE channel 
signal is actually being 
reproduced.
C
SP A/SP B
Lights up according to the 
speaker system used (page 33). 
However, these indicators do 
not light up if the speaker output 
is turned off or if headphones 
are connected.
D ; 
D (EX)
Lights up when the receiver is 
decoding Dolby Digital signals. 
“; D EX” lights up when the 
receiver is decoding Dolby 
Digital Surround EX signals.
Note
When playing a Dolby Digital 
format disc, be sure that you 
have made digital connections 
and that INPUT MODE is not 
set to “ANALOG” (page 78).
Name
Function
E ; 
PL II (x)
Lights up when the Pro Logic II 
Movie/Music/Game decoder is 
activated.
“; PL IIx” lights up when the 
Pro Logic IIx Movie/Music/
Game decoder is activated.
However, these indicators do 
not light up if both the center 
and surround speakers are set to 
“NO” (page 48) and you select a 
sound field using the A.F.D. 
button.
Note
Dolby Pro Logic IIx decoding 
does not function for signals 
with a sampling frequency of 
more than 48 kHz.
F ; 
PL
Lights up when the receiver 
applies Pro Logic processing to 
2 channel signals in order to 
output the center and surround 
channel signals.
However, these indicators do 
not light up if both the center 
and surround speakers are set to 
“NO” (page 48) and you select a 
sound field using the A.F.D. 
button.
G
OPT
Lights up when INPUT MODE 
is set to “AUTO IN” and the 
source signal is a digital signal 
being input through the 
OPTICAL jack, or when 
INPUT MODE is set to “OPT 
IN” (page 78).
continued
8
US
Name
Function
H
DTS (-ES)/
(96/24)
Lights up when the receiver is 
decoding DTS signals. 
“DTS-ES” lights up when the 
receiver is decoding DTS-ES 
signals.
“DTS 96/24” lights up when the 
receiver is decoding DTS 96 
kHz/24 bit signals. 
Note
When playing a DTS format 
disc, be sure that you have made 
digital connections and that 
INPUT MODE is not set to 
“ANALOG” (page 78).
I
CAT
Lights up when category mode 
is set to “ONE CAT” during 
XM Radio operation (page 73).
J
MEMORY
Lights up when a memory 
function, such as Preset 
Memory (page 68), etc., is 
activated.
K
Tuner 
indicators
Lights up when using the 
receiver to tune in radio stations 
(page 66), etc.
L
Preset 
station 
indicators
Lights up when using the 
receiver to tune in preset radio 
stations. For details on 
presetting radio stations, see 
page 68.
M
D.RANGE
Lights up when dynamic range 
compression is activated (page 
46).
N
NEO:6
Lights up when DTS Neo:6 
Cinema/Music decoder is 
activated (page 61).
O
COAX
Lights up when INPUT MODE 
is set to “AUTO IN” and the 
source signal is a digital signal 
being input through the 
COAXIAL jack, or when 
INPUT MODE is set to “COAX 
IN” (page 78).
P
HDMI
Lights up when the receiver 
recognizes a component 
connected via a HDMI IN jack 
(page 21).
Name
Function
Q
Playback 
channel 
indicators
L
R
C
SL
SR
S
SBL
SBR
SB
The letters (L, C, R, etc.) 
indicate the channels being 
played back. The boxes around 
the letters vary to show how the 
receiver downmixes the source 
sound (based on the speaker 
settings).
Front Left
Front Right
Center (monaural)
Surround Left
Surround Right
Surround (monaural or the 
surround components obtained 
by Pro Logic processing)
Surround Back Left
Surround Back Right
Surround Back (the surround 
back components obtained by 
6.1 channel decoding)
Example:
Recording format (Front/
Surround): 3/2.1
Output channel: When surround 
speakers are set to “NO” (page 
48)
Sound Field: A.F.D. AUTO
SW
L
C
R
SL
SR
Page of 106
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  • Here you can View online or download the Service Manual for the Sony STR-DG910 in PDF for free, which will help you to disassemble, recover, fix and repair Sony STR-DG910 Audio. Information contained in Sony STR-DG910 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.