6
SRS-NWM10
SECTION 3
DIAGRAM
•
Note for Printed Wiring Boards and Schematic Diagrams
Note on Schematic Diagram:
•
All capacitors are in
µ
F 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.
•
Power voltage is dc 4.5V and fed with regulated dc power
supply from battery terminal.
•
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 produc-
tion tolerances.
•
Signal path.
F
: AUDIO
Note on Printed Wiring Board:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side) the parts face are indicated.
surface
•
Lead Layouts
Lead layout of conventional IC CSP (chip size package)
•
The voltage and waveform of CSP (chip size package)
cannot be measured, because its lead layout is different
from that of conventional IC.
•
IC Block Diagrams
– AMPLIFIER Board –
IC101, 201
TPA2010D1YZFR
PVDD
9
GND
8
+
–
VO–
7
PWM
H-
BRIDGE
BIAS
CIRCUITRY
INTERNAL
OSCILLATOR
VDD 2
+
–
VREF
CD
3
OUT
4
– POWER Board –
IC901
S-80943CNMC-G9DT2G
VDD 2
OUT 1
VSS 3
+
–
VREF
CD
5
NC
4
DELAY
CIRCUIT
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