Sony CFD-S20CP - Cd Radio Cassette-corder, Service Manual

Page: 21 / 64

CFD-S20CP
21 21
30-33
34-41,43-55
1-8
S0-S27
COM0-COM3
LIQUID CRYSTAL
DISPLAY PANEL
ND401
2
5
21 22 16
4
L-CH
R-CH
HRP301
RECORD/PLAYBACK
HEAD
HE301
ERASE HEAD
DET
ALC 2
RADIO L
18
15
L.LO
R.LO
LINE
TAPE
R-CH
TU_IN_R
TU_IN_L TAPE
A2
VIN2
VOUT2 SEL2
LOGIC
13
SC
14
SI
VOLUME/SOUND PROCESSOR
IC303
POWER AMP
IC304
D322
R-CH
SP301
SPEAKER
(L-CH)
SP302
SPEAKER
(R-CH)
J321
REF
L.LINE
L.RO
REC L.RAD
R.RAD
T301
REC BIAS OSC
Q301
ISS1
17
TAPE-ON
20
V-CLOCK
V-DATA
CD-ON
CD-CONT
2 1 3 4
SYSTEM CONTROLLER
IC801 (2/2)
95 21 94
5
MEGA BASS
92
EEPROM
IC802
REMOTE
CONTROL
RECEIVER
IC402
TU-CE EEPROM -SCL EEPROM -SDA TU-CLK TU-DATA TU-COUNT B-MUTE
46
WAKE-UP
39
X1
38
X2
35
FM/AM SHIFT
X801
5MHz
42
XT1
41
XT2
Q814,D804
45 1
3
KEY1
53
KEY2
54
KEY3
55
KEY4
56
LCD-CLK
33
LCD-DATA
32
LCD-CS
31
LCD-C/D
30
LCD-RST
29
22 23 24 26 27
Signal path
: FM
: MW
: TAPE PLAY
: TAPE REC
: CD
R-ch is omitted due to same as
L-ch.
REC/PB
PRE AMP
IC301
11 5
MEGA
BASS
CONTROLLER
Q122
3 2
B2
C2
20
6
14
R.LINE
8
R.IN
L.IN
9
R.RO
i
A-MUTE
91
MUTE
Q124
LEVEL
DETECT
D323
TCPLAY
49
M
TAPE PLAY
DETECT
Q801
FM/AM
OSC FREQ.
SHIFT SELECT
Q812,813
24
REC-IN
98
-1 -2
S301
(REC/PB)
REC
PB
VDD (SW)
KEY4
KEY5
KEY3
KEY1
KEY2
S802
(TAPE PLAY)
M801
CAPSTAN/REEL
MOTOR
17
16
CD_IN_R
CD_IN_L
S401-406
S407-411
S412-417
S418-420
S425-431
6 5
11 12
RESET
IC804
RESET 43 1
LED
DRIVER
Q810
MP3-LED
28
KEY5
SCK
SI
CS
C/D
RESET
57
AUDIO 6V
3.3V
Q302
AC-HI
RMC IN
U-COM
(VDD)
VDD (SW)
TREBLE/
BASS
CONTROL
6
8
10
1
ISS2
18
Q303
KEY NETWORK
D401
MP3
D402
OPR/BATT
D801
2
NC
LCD
DRIVER
IC401
TU_IN_R
1 2 3 4
11 12 20 19
CE CL
DI
DO
AM IN FM IN XOUT XIN
13
MO/ST
10
IF IN
LPF2/MO-ST
LPF1/BAND
IF-OUT ST-IND
OSC-OUT
9
BAND
7
BAND
8
ST-IND
18 LP-OUT
6 MW/LW
AM
OSC
AM
MIX
FM
MIX
FM
OSC
AM RF-IN
FM
RF-IN
FM
IF-IN
AM
IF-IN
X1
75kHz
FM/MW/LW PLL
IC2
14 17 13 18
16 15
12
11
19 20
22 4 6
7
10
2
21 24
T1
T2
CF4
L2
L1 CT1
RADIO 6V RADIO 6V
D1
D2
CT3
CT5
D3
-2
LW
-1
MW
CT3,L3-1
MW
TRACKING
CT5,L3-2
LW
TRACKING
L4
LW FREQUENCY COVERAGE
CT1,L1
FM
TRACKING
L2
FM
FREQUENCY
COVERAGE
T2
FM
IF
T1
MW
IF
ANT1
FM
TELESCOPIC
ANTENNA
IF
BUFFER
AM
DET
FM
DET
IF CUT
AF
BUFFER
FM
MPX
MUTE
MW/LW
HIGH
CUT
Q12
IF CUT
R-OUT
L-OUT
RADIO 6V
QUAD
FM/MW/LW FRONT-END, IF AMP,
FM MPX
IC1
L4
RADIO 6V
CF2
RADIO 6V RADIO 6V
RADIO 6V
MW SW
Q41
L3
MW/LW
FERRITE-ROD
ANTENNA
LW SW
Q43
LW SW
Q44
REG
Q61
MW SW
Q42
MW/LW
SW
Q14
RA6V
AM
OSC
MIX-OUT
FM
RF-OUT
FM OSC
DET-OUT
MPX-IN
VDD (SW)
D324
6-4. BLOCK DIAGRAM — MAIN SECTION —
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