Sony SRS-Z750 / SRS-Z750PC Service Manual ▷ View online
– 1 –
SERVICE MANUAL
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
SRS-Z750/Z750PC
STEREO ACTIVE SPEAKER SYSTEM
MICROFILM
SPECIFICATIONS
Amplifier section
Power output
7.5 W + 7.5 W
Input impedance
4.7 Kilohms (at 1 kHz)
Input
Stereo mini jack (INPUT)
(SRS-Z750)
Stereo mini jack
(SRS-Z750)
Stereo mini jack
× 2
(INPUT 1, 2)
(SRS-Z750PC)
Speaker section
System
Full-range, bass reflex type
Speaker unit
Magnetically shielded ø65 mm
(2
(2
5/8
inch)
Nominal Impedance
8 ohms
Rated input power
7.5 W
General
Power requirement
DC IN 15 V jack accepts the
supplied Sony AC power adaptor
(left speaker only)
supplied Sony AC power adaptor
(left speaker only)
Dimensions
Approx. 90
×
165
×
155 mm (3
5/8
×
6
1/2
×
6
1/8
in.) (w/h/d) incl.
projecting parts and controls
Mass
Left speaker: Approx. 850 g (1 lb. 14 oz.)
Right speaker: Approx. 750 g (1 lb. 10 oz.)
Right speaker: Approx. 750 g (1 lb. 10 oz.)
Supplied accessories
AC power adaptor AC-S1510 (1)
Connecting cord (stereo miniplug
˜ stereo miniplug) (1)
Connecting cord (stereo miniplug
˜ stereo miniplug) (1)
Design and specifications are subject to change without
notice.
notice.
The CE mark on the unit is valid only for products
marketed in the European Union.
marketed in the European Union.
Photo: SRS-Z750PC
Left
speaker
speaker
Right
speaker
speaker
Ver 1.0 1998. 07
– 2 –
SECTION 1
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
SRS-Z750/Z750PC
– 3 –
– 4 –
SECTION 2
DIAGRAMS
1
RIPPLE FILTER/
STARTING TIME
2
IN1
3
PRE GND
4
IN2
5
STANDBY
SIGNAL MUTE 6
VCC1 7
VCC2 8
–OUT2
+OUT2 9
POWER GND1
POWER GND2 10
+OUT1
–OUT1
11
12
13
13
14
+
–
+
–
INPUT
AMP
INPUT
AMP
OUTPUT
AMP
OUTPUT
AMP
• IC Block Diagram
IC1 LA4663
2-1. PRINTED WIRING BOARD (SRS-Z750)
2-2. SCHEMATIC DIAGRAM (SRS-Z750)
D1
D-2
D2
D-3
D3
F-2
D4
F-2
IC1
D-2
Q1
E-3
Q2
E-3
• Semiconductor
Location
Ref. No.
Location
Note:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
• b
: Pattern from the side which enables seeing.
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 15 V and fed with regulated dc power
supply from external power voltage jack.
• Voltage is dc with respect to ground under no-signal
condition.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: AUDIO
SRS-Z750/Z750PC
– 5 –
– 6 –
1
RIPPLE FILTER/
STARTING TIME
2
IN1
3
PRE GND
4
IN2
5
STANDBY
SIGNAL MUTE 6
VCC1 7
VCC2 8
–OUT2
+OUT2 9
POWER GND1
POWER GND2 10
+OUT1
–OUT1
11
12
13
13
14
+
–
+
–
INPUT
AMP
INPUT
AMP
OUTPUT
AMP
OUTPUT
AMP
IC1 LA4663
• IC Block Diagram
2-3. PRINTED WIRING BOARD (SRS-Z750PC)
2-4. SCHEMATIC DIAGRAM (SRS-Z750PC)
• Semiconductor
Location
Ref. No.
Location
D1
D-2
D2
D-2
D3
F-2
IC1
D-2
IC2
E-3
Q1
D-3
Q2
D-3
Note:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
• b
: Pattern from the side which enables seeing.
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 15 V and fed with regulated dc power
supply from external power voltage jack.
• Voltage is dc with respect to ground under no-signal
condition.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: AUDIO
