Sony S2 Sports Walkman SRF-H11, Service Manual

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SRF-H11
12 12
Note on Schematic Diagram:
• All capacitors are in µ F unless otherwise noted. pF: µµ F
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.
•
A
: B+ Line.
• Power voltage is dc 1.5V and fed with regulated dc power
supply from battery terminal.
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
(
) : AM
• Signal path.
F
: FM
L9
Q1
R7
R8
C2 L1
0.068 µ H
C3 L2
0.047
µ
H
C4
C5
C6
C7
C8
C11
C12
C13
C15
C16
C17
C18
C19
C21
C22
C23
C24
C25
C26
C28
C27
C14
C29
C30
L3
L6
L4
L8
L5
Q101
R4
R3
C34
C1
R1
R2
C101
C102
C103
C105
C104
C106
C109 C108
C117
C118
C115
C120
C126
C116
C107
C125 C124
C122
C123
C119
C112
C114
R106
R109
R108
R107
R111
R110
R116
C127
C33
R5
C110
R113
RV101
C20
R6
R115
R114
C9 C10
C32
2SA1576
SWITCH
1k
47k
33p
33p
10p
4.7
16V
100p
3p
2200p
5600p
1000p
0.22
0.01
2p
1
1000p
22p
100
4V 1
2.2
35V
4.7
16V
1
1
1
1
50V
0.01
4700p
4700p
2SA1576
B+ SWITCH
470
220
10p
9p
2.2k
220
0.22
0.22
1000p
2.2
35V
22
6.3V
2.2
35V
4.7
16V
0.22
0.22
0.22
0.22
220
4V
0.022
1 1
100p 100p
0.22
0.22
4.7
16V
0.22
0.1
220k
4.7
4.7
4.7
100k
10k
47k
10
6.3V
47p
10
1
4.7
20k/20k
220p
10k
47
47
1
0.22
0.01
IC1
VREF PRE GND DST SW LCH IN PW NFA PW NFB RCH IN PW MUTE PRE MUTE AGC DET PW GND PRE OUT PRE NFB PRE NFA PRE OUT
INA INB
RF IN
VREF IN
RF OUT
BASE
LPF
BST NF
PW INC
BST OUT
AGC IN
LCH OUT
OUTC
RCH OUT
VCC
DRY BATTERY
SIZE"AA"
(IEC DESIGNATION R6)
1PC,1.5V
AM
ANTENNA
FERRITE-BAR
CT1-1 CV1-1
CT1-2 CV1-2
CT1-3 CV1-3
CT1-4 CV1-4
L7
AM
FREQUENCY
COVERAGE
CT1-3,L5
FREQUENCY
COVERAGE
FM
CT1-1,L8
TRACKING
AM
CT1-4,L7
FM
TRACKING
CT1-2,L3
FM/AM FRONT-END
IF AMP,DET
IC101
TA2160FN
MPX DECODER,
POWER AMP
BAND
S1-1
FM DX
FM LOCAL
AM
BAND
FM DX
FM LOCAL
AM
S1-2
S101-2
POWER
OFF
ON
MEGA BASS
POWER
S101-1
SPEAKER
SP1
SPEAKER
SP101
ANTENNA
FM
WIRE
CXA1129N-T4
VOL
(L-CH)
(R-CH)
FM
L4
2nd OSC
FM
VCO
L6
OFF
ON
MEGA BASS
6-2. SCHEMATIC DIAGRAM