STR-DG700 - Sony Audio Service Manual (repair manual)

1

AEP Model

UK Model

Australian Model

Stereo Power Output

 1)

, Reference Power Output

 1) 2)

8 ohms 20 Hz – 20 kHz, THD 0.09 %

85 W + 85 W, 110 W/ch

8 ohms 1 kHz, THD 0.7 %

100 W + 100 W, 120 W/ch

8 ohms 1 kHz, THD 10 %

125 W + 125 W, 150 W/ch

1) Measured under the following conditions:

Area code

Power requirements

AEP, UK

230 V AC, 50 Hz

AUS

240 V AC, 50 Hz

2) Reference power output for front, center, surround

and surround back. Depending on the sound field
settings and thjxsource, there may be no sound output.

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)

Outputs (Analog)

AUDIO OUT

Voltage: 500 mV/10 kohms

SUB WOOFER, SURROUND

Voltage: 2 V/1 kohm

Equalizer

Gain levels

±6 dB, 1 dB step

3) INPUT SHORT (with sound field and equalizer

bypassed).

4) Weighted network, input level.

2006D04-1

© 2006. 04

Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic”, “Surround EX”, and the double-D
symbol are trademarks of Dolby Laboratories.
“DTS”, “DTS-ES”, “Neo:6”, and “DTS 96/24” are
trademarks of Digital Theater Systems, 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.

– Continued on next page –

Photo: Black type

2

Tuning range

87.5 – 108.0 MHz

Intermediate frequency

10.7 MHz

Useable sensitivity

11.2 dBf, 1 µV/75 ohms

S/N

Mono/Stereo

76 dB/70 dB

Harmonic distortion at 1 kHz

Mono/Stereo

0.3%/0.5%

Separation

45 dB at 1 kHz

Frequency response

30 Hz – 15 kHz,
+0.5/–2 dB

Tuning range

With 9-kHz tuning scale: 531 – 1,602 kHz

Intermediate frequency

450 kHz

Usable sensitivity

50 dB/m (at 1,000 kHz or
999 kHz)

Inputs/Outputs

Video:

1 Vp-p, 75 ohms

S-video:

Y: 1 Vp-p, 75 ohms
C: 0.286 Vp-p, 75 ohms

COMPONENT VIDEO:

Y: 1 Vp-p, 75 ohms
P

B

/C

B

/B-Y: 0.7 Vp-p/

75 ohms
P

R

/C

R

/R-Y: 0.7 Vp-p/

75 ohms
80 MHz HD Pass Through

Power requirements

Area code

Power requirements

AEP, UK

230 V AC, 50/60 Hz

AUS

240 V AC, 50 Hz

Power consumption

220 W

Power consumption (during standby mode)

0.2 W

AC outlets

1 switched, 100 W/0.4 A MAX

Dimensions (w/h/d) (Approx.)

430 

×

 157.5 

×

 316 mm

including projecting parts and
controls

Mass (Approx.)

8.5 kg

Supplied accessories

FM wire antenna (1)
AM loop antenna (1)
Remote commander RM-AAP011 (1)
R6 (size-AA) batteries (2)
Optimizer microphone ECM-AC2 (1)

Design and specifications are subject to change
without notice.

• Abbreviation

AUS : Australian model

0

0

Part No.

AEP, UK

2-661-147-7s

AUS

2-661-147-8s

• Abbreviation

AUS : Australian model

3

Description and location of parts ............................................. 4

2-1.   Case ..................................................................................... 7
2-2.   Back Panel Section .............................................................. 8
2-3.   Front Panel Section ............................................................. 8
2-4.   DIGITAL Board .................................................................. 9
2-5.   MAIN Board Section .......................................................... 9
2-6.   STANDBY Board ............................................................. 10
2-7.   REGULATOR Board ........................................................ 10

..................................................................... 11

4-1.   Circuit Boards Location .................................................... 12
4-2.   Block Diagram – Tuner/Audio Section – .......................... 13
4-3.   Block Diagram – Digital Section – ................................... 14
4-4.   Block Diagram – Video Section – ..................................... 15
4-5.   Block Diagram – Key/Display/HDMI Section – .............. 16
4-6.   Block Diagram – Power Section – .................................... 17
4-7.   Printed Wiring Boards – Main Section – .......................... 19
4-8.   Schematic Diagram – Main Section (1/3) – ...................... 20
4-9.   Schematic Diagram – Main Section (2/3) – ...................... 21
4-10. Schematic Diagram – Main Section (3/3) – ...................... 22
4-11. Printed Wiring Board – Digital Section (1/2) – ................ 23
4-12. Printed Wiring Board – Digital Section (2/2) – ................ 24
4-13. Schematic Diagram – Digital Section (1/5) – ................... 25
4-14. Schematic Diagram – Digital Section (2/5) – ................... 26
4-15. Schematic Diagram – Digital Section (3/5) – ................... 27
4-16. Schematic Diagram – Digital Section (4/5) – ................... 28
4-17. Schematic Diagram – Digital Section (5/5) – ................... 29
4-18. Printed Wiring Boards

– Front B/Center/Surround Back Speaker Section – ........ 30

4-19. Schematic Diagram

– Front B/Center/Surround Back Speaker Section – ........ 31

4-20. Printed Wiring Board – Video Section (1/2) – .................. 32
4-21. Printed Wiring Board – Video Section (2/2) – .................. 33
4-22. Schematic Diagram – Video Section (1/2) – ..................... 34
4-23. Schematic Diagram – Video Section (2/2) – ..................... 35
4-24. Printed Wiring Boards

– S-video/Video3/REG Section – ..................................... 36

4-25. Schematic Diagram

– S-video/Video3/REG Section – ..................................... 37

4-26. Printed Wiring Board – HDMI Section – .......................... 38
4-27. Schematic Diagram – HDMI Section – ............................ 39
4-28. Printed Wiring Board – ADCC Section – ......................... 40
4-29. Schematic Diagram – ADCC Section – ............................ 40
4-30. Printed Wiring Boards – Display Section – ...................... 41
4-31. Schematic Diagram – Display Section – ........................... 42
4-32. Printed Wiring Boards – Power Section – ......................... 43
4-33. Schematic Diagram – Power Section – ............................. 44

5-1.   Case Section ...................................................................... 58
5-2.   Front Panel Section ........................................................... 59
5-3.   Back Panel Section ............................................................ 60
5-4.   Chassis Section ................................................................. 61

........................................ 62

4

This section is extracted
from instruction manual.

GB

Press PUSH.
When you remove the cover, keep it out of 
reach from children.

?/1

1

5

2

6

8

q;

4

3

9

7

qa

qs

wd

qd

qf

wa

ws

qg

qh

qj

qk

ql

w;

A ?

1

Press to turn the receiver 
on or off (page 29, 36, 37, 
57, 59).

B

Press to select OFF, A, B, 
A+B of the front speakers 
(page 30).

C

Press to select the tuning 
mode (page 58, 62).

D

Turn to scan a station 
(page 58, 61).

E

The current status of the 
selected component or a 
list of selectable items 
appears here (page 6). 

GB

F

Lights up when multi 
channel audio is decoded 
(page 37).

G

Receives signals from 
remote commander.

H

Press to select information 
displayed on the display 
(page 63, 67).

I

Press to select the input 
mode when the same 
components are connected 
to both digital and analog 
jacks (page 64).

J

Turn to adjust the volume 
level of all speakers at the 
same time (page 34, 35, 
36, 37).

K

Press to listen to high 
quality analog sound 
(page 56).

L

Press to select the audio 
directly from the 
components connected to 
the MULTI CH IN jacks 
(page 35).

M

Turn to select the input 
source to playback (page 
35, 36, 37, 56, 58, 62, 64, 
67, 68, 69).

N

 

Press to select sound fields 
(MOVIE, MUSIC) (page 
53).

O

Press to select A.F.D. 
mode (page 51).

P

Press to select 2CH 
STEREO mode (page 56, 
57).

Q

Press to select the 
surround back decoding 
mode (page 44).

R

Press to activate the Sleep 
Timer function and the 
duration which the 
receiver turns off 
automatically (page 68).

S

Press to change the 
brightness of the display 
(page 50).

T

Press to store a station or 
enter the selection when 
selecting the settings 
(page 29, 60).

U

To connect a camcorder or 
video game (page 27, 35).

V

Connects to the supplied 
ECM-AC2 optimizer 
microphone for the Auto 
Calibration function (page 
31).

W

Connects to a headphone 
(page 77).

GB

;

;

qd

qs

qa

qj

qk

qg

qh

qf

2

1

4

3

5

6

7

8

9

q;

A

Lights up when sub woofer 
selection is set to “YES” (page 
41) and the audio signal is 
output from the SUB WOOFER 
jack.

B

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

Lights up according to the 
speaker system used. However, 
these indicators do not light up 
if the speaker output is turned 
off or if a headphone is 
connected.

D ;

Lights up when Dolby Digital 
signals are input. “; 
DIGITAL EX” lights up when 
Dolby Digital Surround EX 
signals are decoded.
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 64).

E ;

Lights up when the receiver 
applies Pro Logic processing to 
2 channel signals in order to 
output the center and surround 
channel signals. “; PRO 
LOGIC II” lights up when the 
Pro Logic II Movie/Music/
Game decoder is activated.

 

“; PRO LOGIC 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 
41) and you select a sound field 
using the A.F.D. button.
Note
Dolby Pro Logic IIx decoding 
does not function for DTS 
format signals or for signals 
with a sampling frequency of 
more than 48 kHz.

F

Lights up when DTS signals are 
input. “DTS-ES” lights up 
when DTS-ES signals are input.

 

“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 64).

G

Lights up when DTS Neo:6 
Cinema/Music decoder is 
activated (page 52).

GB

H

Lights up when a memory 
function, such as Preset 
Memory (page 61), etc., is 
activated.

I

Lights up when ANALOG 
DIRECT is selected (page 56).

J

Lights up when using the 
receiver to tune in radio stations 
you have preset. For details on 
presetting radio stations, see 
page 60.

K

Lights up when using the 
receiver to tune in radio stations 
(page 57), etc.
Note
“RDS” appears for models of 
area code CEL, CEK only.

L

Lights up when the equalizer is 
activated (page 39).

M

Lights up when dynamic range 
compression is activated (page 
39).

N

Flashes when you select 
“HDMI A.” in the VIDEO 
menu (page 66).

O

Lights up when INPUT MODE 
is set to “AUTO” and the source 
signal is a digital signal being 
input through the COAXIAL 
jack, or when INPUT MODE is 
set to “COAX IN” (page 64).

P

Lights up when INPUT MODE 
is set to “AUTO” and the source 
signal is a digital signal being 
input through the OPTICAL 
jack, or when INPUT MODE is 
set to “OPT IN” (page 64).

Q

Lights up when the sleep timer 
is activated (page 68).

R

 

 

 

 

 

 

 

 

 

 

 

 

 

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 (the surround 
back components obtained by 
6.1 channel decoding)
Example:
Recording format (Front/
Surround): 3/2.1
Output channel: When surround 
speaker is set to “NO” (page 41)
Sound Field: A.F.D. AUTO