STR-DG910 — Sony Audio Service Manual (repair manual)

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

View Sony STR-DG910 Service Manual online

1
SERVICE MANUAL
US Model
Canadian Model
AEP Model
UK Model
E Model
STR-DG910
MULTI CHANNEL AV RECEIVER
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
(Models of area code US only)
With 8 ohm loads, both channels driven, from
20 – 20,000 Hz; rated 100 watts per channel
minimum RMS power, with no more than
0.09 % total harmonic distortion from 250
milliwatts to rated output.
Amplifier section
Models of area code US, CND
 1)
Minimum RMS Output Power (8 ohms, 20 Hz –
20 kHz, THD 0.09%)
100 W + 100 W
 1)
Stereo Mode Output Power (8 ohms, 1 kHz,
THD 1%)
110 W + 110 W
 1)
Surround Mode Output Power
 2)
 (8 ohms, 1 kHz,
THD 10%)
150 W per channel
 1)
Models of area code AEP, UK
 1)
Minimum RMS Output Power (8 ohms, 20 Hz –
20 kHz, THD 0.09%)
90 W + 90 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%)
140 W per channel
 1)
SPECIFICATIONS
Ver. 1.1  2007. 07
9-887-656-02
2007G04-1
© 2007. 07
Sony Corporation
Home Audio Division
Published by Sony Techno Create Corporation
This receiver incorporates Dolby
*
 Digital and Pro
Logic Surround and the DTS
**
 Digital Surround
System.
*
Manufactured under license from Dolby
Laboratories.
“Dolby”, “Pro Logic”, “Surround EX”, and the
double-D symbol are trademarks of Dolby
Laboratories.
**
“DTS” and “DTS-ES | Neo:6” are registered
trademarks of DTS, Inc. “96/24” is a trademark
of DTS, Inc.
This receiver incorporates High-Definition
Multimedia Interface (HDMI
TM
) technology.
HDMI, the HDMI logo and High-Definition
Multimedia Interface are trademarks or registered
trademarks of HDMI Licensing LLC.
XM is a registered trademark of XM Satellite Radio
Inc. (US, CND model only)
This product is manufactured under license from
Neural Audio Corporation.
Sony Corporation hereby grants the used a non-
exclusive, non-transferable, limited license right to
use this product under the US and foreign patents
pending and other related technology owned by
Neural Audio Corporation. (US, CND model only)
“Neural” and “Neural Audio” and “Neural
Surround” are trademarks of Neural Audio
Corporation. (US, CND model only)
– Continued on next page –
Photo: Black type
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
Page of 106
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  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).