Read Sony CX-LEM220 Service Manual online
17
17
CX-LEM220
CX-LEM220
— MAIN SECTION —
AC
DETECT
Q333, 338
R-CH
+
80
INPUT SELECT,
ELECTRICAL VOLUME
IC302
79
28
REC-O-L
18
OUT-L
13
CONT
21 CD-L
23 TUNER-L
2 TAPE-L
19 AUX-L
REC/PB
SWITCH
Q326 – 332
R-CH
CD
A
• Signal Path
: CD PLAY
: TAPE PLAY
: REC
• R-ch is omitted due to same as L-ch.
: TUNER
CD SERVO
Section
J303
R
MD
L
: AUX IN
J301
PHONES
SPEAKER
IMPEDANCE
USE 6 – 16
Ω
+
–
–
–
+
R
L
J302
FM/AM TUNER PACK
TU LCH
TU RCH
TU CE
CE
R-CH
TUNED
TUNED
STEREO
STEREO
MUTE
TU-MUTING
TU DI
DO
TU DO
DI
TU CL
CLK
CE
TUNED
STEREO
DO
DI
CLK
BIAS OSC
T301
REC BIAS
SWITCH
Q346 – 348
B +10V
BIAS OSC
Q344, 345
ERASE
HRPE301
(REC/PB/ERASE)
TAPE MECHANISM
DECK BLOCK
L-CH
R-CH
R-CH
DC
DETECT
Q342, 343
+
POWER
AMP
IC501
75
TU DI
74
TU CLOCK
73
TU CE
71
TU TUNED
70
TU STEREO
76
TU DO
TA RP
TA BIAS
TU MUTE
TU-MUTING
77
18
I-POWER_MONITOR
28
F-DATA
83
AMP MUTE
84
AU MUTE
82
AMP-STBY
CAPSTAN/REEL
MOTOR DRIVE
Q804, 805
PLUNGER
DRIVE
Q802, 803
M M
(CAPSTAN/REEL)
(DECK-A)
SOL 10V
MOTOR 10V
PACK
R RFC
PLAY SW
END SW
TA PLAY SW
TA END SW
TA END SW
24
68
67
TA-SW
81 TA SOL
78 TA MO
RMC_IN
29
SYSTEM CONTROLLER
IC801 (2/2)
D307
–30V
REGULATOR
Q334 – 337
(AC IN)
SUB POWER
TRANSFORMER
T901
MAIN POWER
TRANSFORMER
T902
AC 3.6V
SYS +3.2V
SYS +3.1V
TO
FLUORESCENT
INDICATOR TUBE
FL –30V
RECT
D911-914
D810
D809
D312, 313
D320
D922, 923
D905
RECT
RECT
D920, 921
AMP B+
TO
POWER AMP
AMP B–
+10V
REGULATOR
IC305
VM +10V
+3.9V
REGULATOR
Q312 – 314
RECT
D916, 917
RECT
D918, 919
RECT
D907 – 910
SYS +3.3V
AM
ANTENNA
FM ANT
AM ANT
ANT GND
ANT GND
FM 75
Ω
COAXIAL
VOLTAGE
DETECT
IC803
MAIN POWER
RELAY DRIVE
RELAY DRIVE
Q311, 315
+3.3V
REGULATOR
D304
+3.3V
REGULATOR
Q317
M +7V
D +3.3V
CD +1.5V
B+ SWITCH
Q319, 320
94
CD ON
85
POWER ON
23
I_POWER_DOWN
11
RESET
REMOTE CONTROL
RECEIVER
IC802
DS G/I-BASS LED
88
LED DRIVE
Q808
D811
i-Bass
ST-BY LED
87
LED DRIVE
Q809
D814
(STANDBY)
X801
32.768kHz
13
12
O-XT2
I-XT1
16
15
X802
10MHz
XOUT
XIN
FL801
FLUORESCENT
INDICATOR TUBE
S1 – 16
G1 – G12
31 – 42
43 – 45, 47 – 50,
52 – 60
22 VOL_ENCODER
66 CD OPEN
ROTARY
ENCODER
RV801
VOLUME
S801 – 815
(FRONT PANEL KEYS)
S820
(CD LID OPEN/CLOSE DETECT)
KEY0,
KEY1
KEY1
27, 20
RESET SWITCH
Q801
RY901
+1.5V
REGULATOR
IC303
8
13
14
6
3
11
+INA
+INB
STANDBYB
MUTEA
11
MUTEB
OUTA
OUTB
(Page 16)
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