Read Sony SRF-PSY03 Service Manual online
SRF-PSY03
– 7 –
– 8 –
SECTION 4
DIAGRAMS
4-1.
BLOCK DIAGRAM
11
23
24
TV/FM
RF AMP
AM
RF AMP
TV/FM
MIX
1st
LOCAL
OSC
1/2
COUNTER
2nd
LOCAL OSC
12
FM RF
IN
IN
TV RF
IN
IN
DET
OUT
MPX
IN
IN
AM OSC
27
FM RF
L5
AM FERRITE-ROD
ANTENNA
FM 2ND
OSC
L2
2ND OSC
L3
AM OSC
L1
FM RF
L6
FM OSC
FM/AM RF AMP, IF AMP,
MIX, OSC, DET, AGC, AF AMP
IC1
CT1 (1/4), L6
FM FREQUENCY
COVERAGE
CT1 (3/4), L3
AM FREQUENCY
COVERAGE
2ND LOCAL
FREQUENCY
(57.1MHz)
L4
FM STEREO
(38kHz)
CT1 (4/4), L5
AM TRACKING
CT1 (2/4), L1
FM TRACKING
CV1
TUNE
• SIGNAL PATH
: FM
: AM
05
DRY BATTERY
SIZE “AA”
(IEC DESIGNATION R6)
1PCS. 1.5V
HPJ1
(HEADPHONE)
2
B.P.F.
BPF1
FM/AM
MIX
1
MIX
2
PSN
1
FM
L.P.F.
FM LIMITER
AMP
FM
DISCRI
STEREO
DECODER
PD
SYNC
DET
DC
AMP
VCO
MONO/STEREO,
STEREO
INDICATOR
FM/AM
SELECT
TV/FM
SELECT
BUFFER
1/2
COUNTER
SEP.
CONTROL
AMP
AF
AMP
DETUNE
DET
TUNING
INDICATOR
AM
L.P.F.
AM IF
AMP
AM
DET
PSN
2
LOUT
ROUT
TV/FM
FM/AM
TV/FM
TV/FM
TUN IND
0
°
π
/2
19kHz 0
°
38kHz
B+
19kHz
π
/2
16
17
ST IND
15
PLL
VCO
19
22
FM IF
7
PD2
14
PD1
13
PLL2
20
PLL1
21
2
30
29
TV OSC
5
FM OSC
AM RF IN
4
CT1
(1/4)
CV1
(1/4)
CT1
(4/4)
CT1
(3/4)
IN
IN
–1
–2
4
2
HEADPHONE AMP
IC2
POWER
AMP
OUT
7
POWER
AMP
OUT
9
CV1
(4/4)
CT1
(2/4)
CV1
(2/4)
CV1
(3/4)
FM SENS
S1
BAND
S2-1
LOCAL
DX
POWER
S3
OFF
ON
B+
B+
FM
AM
BAND
S2-2
VOL
RV1
B+
FM
AM
+
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