Sony CFD-ZW750 - Cd Radio Cassette-corder Manual de servicio - Página 3
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5-4. BLOCK DIAGRAM — MAIN SECTION —
CD SECTION
1
CD L-CH
HP301
R-CH
R-CH
PLAYBACK
HEAD
L-CH
(DECK A)
S301-1
PB
HRP301
L-CH
RECORD/
PLAYBACK
HEAD
R-CH
R-CH
(DECK B)
ISS3
ISS1
Q319
Q318
MD
POWER
DETECTOR
Q317
Q316
Q340
9V
9V
S304
S301
(MD POWER)
ISS
DECK A
3 2 1
S307
(MD POWER)
DECK B
78
9V
REC
S301-3
REC
79 C-DOR
PB
S801
21
17 18 19 20
CD DOOR
OPEN/CLOSE
LED
SWITCH
Q807
D810
MANUAL
6V
5 BAND
D806-809
GRAPHIC
EQUALIZER
ZW770
6V
L4
AM-OSC
ZW750
TUNER
D3
6V
L3
AM
AM
FERRITE-ROD
ANT1
ANTENNA
RF-IN
FM
22
TELESCOPIC
ANTENNA
CT2
FM
TUNER
RF-IN
6V
BPF
2
FL1
L1
FM-RF
04
TUNER
6V
S303
20
HIGH-SPEED
CD-L
DUBBING
REC/PB
12
PRE AMP
IC301
A-L
1
Q305
REC
DUBBING
REC EQ
SWITCH
Q308-310
B-L
32
BIAS
19
OUT-R
15
R-CH
T301
BIAS
OUT-L
BIAS
14
OSC
TR-C
FUNCTION
29
BIAS
LOGIC
27
OSC
30
BIAS
TR-B
10
7
28
M301
(CAPSTAN/REEL)
Q306
A
S305
+
–
S301-4
M
(MD PLAY)
DECK A
HIGH
B
Q307
RV301
NORMAL
TAPE
SPEED
Q304
S306
(MD PLAY)
DECK B
23
SYSTEM CONTROL
IC801 (2/2)
TUNER
TUNER
38–41
42–64
67
68
31
32
29
30
66
X801
3
4.19MHz
RESET
LCD801
IC802
CLOCK
CLOCK
1
SHIFT
SHIFT
Q802
Q801
B/UP +5V
2 4
PLL
IC2
19
LP-OUT
12 13
14
9
21
20
11
X1
75KHz
20
19
14
18
17
FM/AM FRONT-END,
IF DET, FM STEREO
AM
DEMODULATOR
IC1
IF
OSC
BUFFER
CFT1
MIX
AM IFT
OUT
AM
4
6
MIX
AM
FM
IF-IN
MIX
FM
7
OSC
FM
IF-IN
TUNER
24
21
6V
CT1
CF1
D1 D2
CF2
TUNER
L2
FM-OSC
6V
D10
TUNER
TUNER
6V
6V
– 19 –
1KHz BAND
DETECTOR
IC803
Q315
5 BAND PROCESSOR
A06/10KHz
12
A05/4KHz
11
4
DATA
A04/1KHz
10
3
CLK
A03/400Hz
9
2
LAT
A02/100Hz
6
A01/VR
5
MEGA BASS
TAPE
DETECTOR
Q321, 322
Q303
17
IN2
Q301
TUNER
CD
Q302
ZW770
X802
LED
32.768KHz
SWITCH
Q808-810
22
73•74
69 71 70
16 14 3
15
BL-CONT
76
A-MUTE
77
24
25
26
27
2
13 80
1
SIRCS
RECEIVER
IC811
S824-827
S816-823
S808-815
S803-807
3
REM +B
DI
3
BAND
7
CD SECTION
2
R-CNT/ST-MO
DO
5
8
Q1
13
AM
DET
MPX-
R-OUT
DET-
11
IN
AF
OUT
FM
16
15
MUTE
L-OUT
BUFFER
MPX
12
FM
DET
REM+B
10
TUNER
6V
5 BAND GRAPHIC EQUALIZER
RV401-405
2
1
22
21
20
POWER AMP
IC304
OUT2
GRAPHIC
13
12
EQUALIZER
Q101
VOL
CONTROLLER
4
VOLUME/SOUND CONTROL
IC302
Q323(ZW770)
Q332(ZW750)
6V
Q811–813
LAMP ON
SWITCH
Q334, 335
ZW770
PL801–803
ZW770
CD 5V
RECT
CD 5V
SWITCH
D901-904
Q313, 314
ZW770
CD
7.5V REG
RECT
(FOR B/L)
D905, 909-911
Q332
TUNER 6V
TUNER
SWITCH
6V
Q311, 312
9V
TUNER
5V REG
ZW750
TUNER 5V
(FOR CD/TUNER)
6V
Q330
TUNER
6V REG
5V
6V
(FOR AUDIO)
Q331
ZW770
POWER
SWITCH
Q338, 339
9V
D321
VT 9V
D814
BACK UP
OPR/BATT
SWITCH
Q320, 324, 325,
327-329
6.2V REG
CD 6.2V
(FOR CD)
IC305
Q333
BACK UP 5V IC
R-CH
D908
B/UP
3
2
+5V
D907
D906
DRY BATTERY
REG. CHECK &
SIZE "AA"
REM+B SWITCH
(IEC DESIGNATION R6)
Q336, 337
3PCS, 4.5V
(BACK UP)
DRY BATTERY SIZE "D"
(IEC DESIGNATION R20)
6PCS, 9V (POWER)
– 20 –
CFD-ZW750/ZW770
R-CH
R-CH
J301
3
PHONES
SP901
SPEAKER
(L-CH)
T901
POWER
F901
TRANSFORMER
R901
J901
~ AC IN
ZW770
9V
5V REG
6V REG
(FOR CD/TUNER)
(FOR AUDIO)
Q330
Q331
R367
9V
• Signal path
: FM
: AM
: PLAY (DECK A)
: PLAY (DECK B)
: REC (DECK B)
: CD
• R-ch : same as L-ch.