Read Sony SRF-S84 (serv.man2) Service Manual online
SRF-S84
8
8
CT1
CT2
CT3
CV1
CV2
CV3
C1
C3
C4
L2
C5
CT4
CV4
C6
C7
C8
C9
C10
C11
C24
C25
C26
C27
C28
R6
R7
C29
R8
C35
C36
C37
L7
1
µH
1
µH
1
µH
L9
C38
C39
C40
C41
C42
L1
L10
1
µH
C13
C14
R2
EXCEPT JEW
C17
C18
L6
R3
C19
C20
C21
C22
R4
C33
C34
R15
R16
C30
C31
C32
C43
C44
R11
Q1
L11
20
µH
L3
R10
R9
C23
C12
J1
L8
R1
C16
L4
L5
C2
18p
EXCEPT JEW
JEW
JEW
*C2
22p
18p
4.7
16V
16V
100p
3p
1500p
1
0.22
5600p
0.22
0.015
0.47
0.47
0.047
1000p
0.1
150k
150k
1
50V
4.7k
0.1
0.1
100
4V
100
4V
220
4V
0.1
100p
100p
1
2p
1k
C15
18p
18p
100
4V
1
6.8
2.2
35V
35V
4.7
16V
16V
1
10
6.3V
68k
R5
10k
0.47
0.47
0
0
1
50V
10
6.3V
100
4V
22
6.3V
0.1
1k
2SB1218A
100k
100k
1
0.015
220
120p
*
FM/AM FRONT-END
IF DET,FM MPX
FM IF
MUTE
DET OUT
MPX IN
PD1
PD2
ST IND
AGC
GND
+VCC
FM RF
OL AGC
AM OSC
TUN IND
PLL1
PLL2
VCO CONT
R OUT
L OUT
TV 1ST OSC
FM 1ST OSC
AGC AFC
AM RF IN
FE GND
FM RF IN
TV RF IN
+VCC FE
IMAGE ADJ
FM 2ND LOCAL
PLL VCO
MUTE
SWITCH
OUT 1
POWER
GND
OUT 2
VCC
POWER
SWITCH
IN 1
IN 2
REF
REF GND
POWER AMP
IC3
IC1
VCC
GND
IN 1
IN 2
HP 1
HP 2
LP IN
LP GAIN
LP OUT
OUT 1
OUT 2
DET IN
DET IN
IC2
MEGA BASS
AMP
REG
FM ST
FM MONO
AM
S1
BAND
S1-1
S1-2
S2-2
ON
POWER
MEGABASS
OFF
S2
S2-1
FM
TRACKING
TRACKING
AM
FREQUENCY
COVERAGE
FM
AM
FREQUENCY
COVERAGE
FM
2ND OSC
VCO
L4
TUNE
CV1-4
CT3,L5
CT1,L6
CT4,L3
L2
CT2,L1
RV1
DRY BATTERY
REF
CXA1129N-T4
LA3550M-TE-L
LA4535M-TE-L
VOLUME
(IEC DESIGNATION R03)
1PC 1.5V
SIZE"AAA"
5-3. SCHEMATIC DIAGRAM
Note:
• All capacitors are in
• 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
specifed.
• A : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 1.5 V and fed with regulated dc power
• H : adjustment for repair.
• Power voltage is dc 1.5 V 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
(
no mark : FM
(
) : AM
• Voltages are taken with a VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Signal path.
F : FM
f : AM
f : AM
• Abbreviation
JEW : Tourist model
Ver 1.1
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