Read Sony CFD-E70L Service Manual online
CFD-E70L
21
21
REC/PB EQ AMP
IC301
POWER
AMP
IC390
: CD PLAY
: TUNER (FM/MW/LW)
: TAPE PLAY
: REC
SHIFT
CLK
Q804
Q803, 804
SHIFT CLOCK
Q803
X801
4.19MHz
R-CH
L IN
L OUT
VREF
L.LO
MIC IN
L.CD
L.RAD
VREF
VREF
TC 6V
L.IN
L-CH
R-CH
XT
AL
EXT
AL
LINE
TAPE
REC
29
32
31
23
24
TU-DATA
TU-CLK
TU-CE
TU-COUNT
66
68
69
78
17 15 21
6
20
11
5
L.RO
4
22
24
13
TU L-OUT
R-CH
R-CH
MUTE
MUTE
HRP301
(REC/PB)
HE301
(ERASE)
TAPE
67
TC-REC
79
B
(Page 20)
(Page 20)
C
PB
EQ AMP
MONITOR
AMP
5
POWER
AMP
STANDBY
SWITCH
MIC
AMP
REC
EQ AMP
BIAS OSC
Q301
REFERENCE VOLTAGE
GENERATOR
LOGIC CIRCUIT
DET
ALC
BUFFER
BUFFER
T301
BIAS OSC
(L-CH)
(R-CH)
J301
(HEADPHONE)
X802
32.768kHz
TX
TEX
73
74
SYSTEM CONTROLLER
IC801 (2/3)
S301 (2/2)
(REC/PB)
ST
ANDBY
V
-D
ATA
V
-CLOCK
A-MUTE
BUZZER
7
12
13 16
3
REC
PB
S301 (1/2)
(REC/PB)
REC
PB
+
TU-MUTE
70
(Page 20)
D
R-MUTE
CD L-OUT
A
(Page 19)
CD B+
AF AMP
Q120
8
R-CH
LOGIC
CONTROL
4
5
7
ELECTRICAL VOLUME
IC320
Q122
MUTING
R-CH
BEEP H/L
71
MEGA
BASS
15
26
JOG-A
25
JOG-B
BUZZER H/L
CONTROL
Q431
ROTARY
ENCODER
RE401
(JOG DIAL)
S401 – 405
S406, 407
S408 – 413
MEGA BASS
CONTROL
Q291
D390
D320
D394
TC POWER
B+
R-ch is omitted due to same as L-ch.
SIGNAL PATH
KEY
-1
KEY
-2
VIN2
VOUT2
DATA
CLOCK
Q303
Q302
Q302, 303
ISS SWITCHING
ISS-2
77
ISS-1
76
R-DATA
R-CLOCK
R-CE
R-COUNT
6-3.
BLOCK DIAGRAM – MAIN Section –
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