Read Sony SRS-Z1 Service Manual online
SECTION 2
DIAGRAMS
2-1. IC BLOCK DIAGRAM
• IC1, IC2 TEA2025B
50
5K
10K
10K
50
50
DECOUPLING
START
CIRCUIT
PROTECT.
THERMAL
9
10
11
12
13
14
15
16
BRIDGE
OUT2
BOOT2
GND
GND
IN2+
SVR
FEED
BACK
+Vs
OUT1
BOOT1
GND
GND
IN1+
GND
FEED
BACK
1
2
3
4
5
6
7
8
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
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 9 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• 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.
E
: AUDIO signal
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
• b
: Pattern from the side which enables seeing.
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