Sony CFD-W57 - Cd Radio Cassette-corder, Service Manual

Page: 22 / 74

CFD-W57
5-4. BLOCK DIAGRAM — MAIN SECTION —
– 23 – – 24 –
M
1
32
29
30
10
95 99 94
29
22 20 19 21
3 4 5 6
39 40 37 38 18 2 97 50–53
7 28
27
13 12 20 19 18
25 24 26 96
28
21 14 15
14 2 9 12 3
23
15
12
A-L
B-L
TR-C
TR-B
TU-L
CD-L
CD L-CH
REC EQ
S301-1
REC PB
BIAS
OSC
LOGIC
MIC/HS A/B NOR/HI
FUNCTION
OUT-L
OUT-R R-CH
PRE-AMP
IC301
RV301
TAPE
SPEED
Q321 A
B
– +
ISS2
Q319
ISS1
Q320
Q326
Q322
Q304
T301
Q325
10V REG
Q318
12V
R-CH
R-CH
R-CH
L-CH
HRP301
RECORD/
PLAYBACK
HEAD
(DECK B)
L-CH
R-CH
HP301
PLAYBACK
HEAD
(DECK A)
1
CD SECTION
S602
(MD POWER)
DECK B
S605
(MD POWER)
DECK A
PON+B
S301-2
REC
PB
REC
COM0
ISS1 ISS2
COM3
54–76 92•93 33–36
SEG0 SEG22 CE CLK DATA COUNT
LCD801
TUNER TUNER
SURROUND TONE VOL
CONTROL
TUNER CD TAPE L.DET CK DATA BC
LATCH
VOLUME/SOUND CONTROL
IC302
POWER AMP
IC303
Q307
Q308
Q101
IN1
OUT1
VC
SP901
SPEAKER
(L-CH)
R-CH
R-CH
J301
Q301
Q302
S604
(MD PLAY)
DECK A
100 27
S603
(MD PLAY)
DECK B
LOW DET
Q323
CE
A-MUTE
DATA
CLOCK
REG-CHK
TC2 TC1
TUNER
CD
5V
VOL
X802
32.768KHz
X801
4.19MHz
CLOCK
SHIFT
Q802
CLOCK
SHIFT
Q801
RESET
IC802
COM 5V
RESET ST MUTE KEY1 KEY4 W/UP
3
SIRCS
RECEIVER
IC811
RMC SFT-CLK XTAL1 EXTAL1 TXE TX
D801–803, 806
S811–834
BL-CONT
23 P.CON
LAMP ON
SWITCH
Q805, 806
CD 5V
SWITCH
Q316, 317
TUNER 6.8V
REG
Q305, 306
CD 7V
REG
Q315
PL801–803
POWER ON
SWITCH
Q312, 313
7.5V REG
Q311
RECT
D901– 904
B+ SWITCH
Q309, 310
5V REG
IC304
CD 5V
CD
TU 6.8V
5V
SW 5V
COM 5V
5V REG
Q314
D811
OPR/BATT
D310 D303
D302, 309
D906
PON+B
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
4PCS, 6V
<BACK UP>
DRY BATTERY
SIZE "D"
(IEC DESIGNATION R20)
8PCS, 12V
PON+B
PON+B
TUNER
7.5V
CD 7V
12V
PON+B
T901
POWER
TRANSFORMER
J901
AC IN
CE CK DA CD
15
11 12 1 2 7
15 10 14 18 19 22
21 23
24 3 7
17 16
12
11
18 9
1
PD1
AM IN FM IN XOUT XIN IF IN P1 P0
X1
75KHz
8 9
AM
OSC
FM
OSC
AM
MIX
FM
MIX
AM RF
FM
RF
IF
BUFFER
MO/ST
BAND
ST-IND
AM
DET
6
FM
DET
AF
BUFFER
H. FREQ.
CUT
Q1
H. FREQ.
IF CUT
Q4
MUTE
CONTROL
Q9,12
FM
MPX
MUTE
R-CH
Q10
QUAD
VCO
13
IF CUT
R
L
CF4 CF3 CF2 CF1
CFT1
Q6
D1 D2
CT1
L1 L2
VT
LPF
Q8
REG
Q5
CT2
L3
AM
FERRITE-ROD
ANTENNA
PON+B
FL1
04
D304
BPF
ANT1
FM
TELESCOPIC
ANTENNA
D3
L4
FM/AM FRONT-END, IF DET,
FM STEREO DEMODULATOR
IC1
SYSTEM CONTROL
IC801 (2/2)
PLL
IC2
• Signal path
: FM
: AM
: PLAY (DECK A)
: PLAY (DECK B)
: REC (DECK B)
: CD
S301-3
HIGH
NORMAL
Q7
Q2
Q3
OSC
• R-ch : same as L-ch.