SRS-DZ10 - Sony Audio Service Manual (repair manual). Page 3

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SRS-DZ10
3
3
SRS-DZ10
SECTION 1
GENERAL
This section is extracted
from instruction manual.
LOCATING THE  CONTROLS
SECTION 2
DIAGRAMS
For schematic diagrams.
Note:
• All capacitors are in 
µF unless otherwise noted.  (p: pF) 50 WV or
less are not indicated except for electrolytics and tantalums.
• All resistors are in 
Ω and 
1
/
4
 
W or less unless otherwise specified.
• C : panel designation.
• A : B+ Line.
• B : B– Line.
• Voltages are dc with respect to ground under no-signal conditions.
• no mark : Power on
• Voltages are taken with a VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production toler-
ances.
• Signal path.
F
: AUDIO
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this necessary note is printed in each block.)
Note:
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
POWER
VOLUME
BASS
PHONES
MAX
MIN
MAX
MIN
POWER
VOLUME
PHONES
Control Box
VOLUME:  Controls total volume level.
BASS: Adjusts bass level (Subwoofer).
PHONES: Connect to headphones for personal listening.
BASS
For printed wiring boards.
Note:
• X : parts extracted from the component side.
: Pattern from the side which enables seeing.
  (The other layers' patterns are not indicated.)
IC301  TDA7297
• IC Block Diagram
1
4
2
3
5
6
+
+
7
8
9 10 11
15
12
14
13
+
+
OUT1+
OUT2+
OUT1-
OUT2-
VCC
VCC
IN1
IN2
OUTPUT 2
S-GND
PW
-GND
ST
-BY
MUTE
N.C.
N.C.
N.C.
Vref
IC302  TDA7482
1
4
2
3
5
6
+
+
7
8
9
10 11
15
12
14
13
OUT
BOOTDIODE
BOOT
VREG
FEEDCAP
IN
-VCC SIGN
+VCC SIGN
+VCC POW
-VCC POW
-VCC POW
SGN-GND
ST
-BY/MUTE
FREQ
N.C.
Caution:
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
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