Read Sony CX-LEM400 / XR-EM400 Service Manual online
18
18
CX-LEM400
6-2. BLOCK DIAGRAM – MAIN SECTION –
• R-CH is omitted due to same as L-CH.
: TUNER
: CD
• Signal Path
: AUX
: PB (TAPE)
: REC (TAPE)
BIAS
OSC
Q307
+9V
ERASE
HEAD
REC/PB
HEAD
DECK
TU COUNT
99
TU CLK
100
TU CE
84
SYSTEM CONTROLLER
IC801 (2/2)
TU DATA
TU DO
TU CLK
98
L
R
AUX IN
J303(1/2)
SUB
WOOFER
J303(2/2)
J301
PHONES
R-CH
L
R
FUCTION
KEY
REMOTE
CONTROL
RECEIVER
IC802
S801-806
D811
ECO
TUNER PACK
L-CH
R-CH
R-CH
TU-DI
TU-DO
TU-CL
CE
TUNED
R-CH
TU TUNED
93
REC/PB
SWITCH
Q326-332
T301
BIAS OSC
Q308
MECHANISM BLOCK
PLAY
SOLENOID
DRIVER
Q321,322
MOTOR
DRIVER
DRIVER
Q323,325
TA REC/PB
77
TA BIAS
74
TA SW
24
32.768kHz
12
32.768kHz
13
X801
32.768kHz
8.64MHz
15
8.64MHz-EXTAL
16
SFT-CLK
25
X802
8.64MHz
29
RMC
FUCTION
KEY
S807-813
19
KEY2
VOL
ENCODER
RV801
22
VOL.ENC
75
ECO.LED
3
1
RESET
SWITCH
Q815
11
RST
RESET
IC803
1
3
20
I POWER DOWN
D907-910
RELAY
DRIVE
AC
IN
CD POWER
CONTROL
Q320
Q311
RY901
18
KEY1
82
CD
+5V
SOUND PROCESSOR
IC302
AUX-L
19
18
OUT-L
TU-L
23
TA-L
2
CD-L
21
16
OUT-R
R-CH
13
CONT
28
RECO-L
TU MUTE
80
FM-SIGNAL
23
RDS-DATA
7
TU STEREO
92
STEREO
MUTE
FM-SIGNAL
RDS-DATA
RDS-CLK
RDS-CLK
27
R-CH
R-CH
L-CH
PACK
T END
M1
DECK
MOTOR
SOLENOID
R-CH
F-DATA
10
TA PLAY.SW
67
TA MOTOR
6
TA END
5
TA SOL
4
POWER
AMP
R-CH
J302
SPEAKER
45
47
50
.
52
66
.
SEG1
SEG20
37
44
G1
G8
FLUORESCENT
INDICATOR TUBE
FL801
F1
F2
POWER
CONTROL
D810
IC801 VDD1,VDD2
+5.6V (SUB)
D813
26
I POWER MONITOR
Q315
B+
SWITCH
Q319
CD-VM(7V)
IC302
+5V
+5V
Q309
11
4
1
IC303
78
AMP-STNBY
13
FL -26V
D809
IC801 VDD3
+10V
REG
IC305
D920
D921
1
3
T902
POWER
D916-919
D911-914
F1(AC 3.5V)
F2(AC 3.5V)
D922-925
+5V
REG
Q305
(MAIN)
+5V
+5V
REG
Q339
TU +5V
+9V
+5V
REG
Q310
TU +10V
D319-321
D322
D312,313
POWER AMP
VCC
AC
DET
Q333
IC302
-5V
-5V
REG
Q306
RF VDD
(3.3V),
CD-VM
(3.3V)
+3.3V
REG
Q317
FL -26V
REG
Q334-337
FL -26V
POWER
MONITER
Q338
+5.6V
REG
Q312-314
D317
8
POWER ON
+5.6V( SUB)
ROUT
LOUT
A
CD SECTION
B
CD SECTION
(MAIN)
TRANSFORMER
T901
POWER
(SUB)
TRANSFORMER
M
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