Block Diagram - Main Section - Sony CX-LDB30 Service Manual

CX-LDB30/LDB50
7-2. BLOCK DIAGRAM — MAIN SECTION —
J291
AUDIO IN
R-CH
TUNER PACK
+9V +Vcc
L-CH
R-CH R-CH
D OUT
D IN
CLK
CE
TUNED
STEREO
TUMUT
RDSDATA
RDSINT
AEP ONLY
DECK BLOCK
L-CH
REC/PB
HEAD
R-CH
L301
R-CH Q310
BIAS OSC
BIAS
OSC
ERASE Q311, 312
HEAD
BIAS
+7V
SWITCH
MECHA BLOCK
PLAY
REC
PACK
END
Q902,904
MOTOR
DRIVE
DECK
MOTOR M
Q903,905
T SOL
DRIVE
L OUT
A
R OUT R-CH
CD SECTION
CX-LDB30/LDB50
FUNCTION
IC601
AUX-L
33
TUNER-L
35
PBP-L
2
CD L
31
RECOUT-L
40
SYSTEM CONTROLLER
IC901 (2/2) VOL INR
25 O-PLLDATA 23 18 SI
I-PLLDATA
I_AUDIO IN 59
27 O-PLLCLK VOL IN L
22 19 SC
O-PLLCE FUNC CLK 50
26 I-TUNE
79 I-STEREO
I-HP 41
O-SP-ON 42
80 O-TUMUT
58 I-RDSDAT
18 I-RDSCLK
Q305,307,309
Q313 O-MUTE 55
REC/PB
+VL
SWITCH
I-PROTECT 39
43 O-PB2
LCD501
O-LCDAT 1
LCD
O-LCD SCK 2
O-LCD-RS 40
O-LCD CD 46
O-LCDCS 52
44 O-BIAS
S511-516,929
FUCTION
51 I-KEY0 97
I-PLAY SW
KEY
89 I-HALF SW
I-WAKEUP 74
S504-510,936
FUCTION
I-KEY1 95
KEY
94 I-END SW
S501
VOL
54 I-ENC0 88
O-MOTOR
ENCODER
S502
BASS
I-ENC1
53 O-SOL 91
ENCODER
S503
TREBLE
I-ENC2 90
ENCODER
10 32kHz-IN
X901
32.768kHz
D504
11 32kHz-OUT
O-ST LED 100 STAND BY
15 16MHz-IN
X902
16MHz
13 16MHz-OUT
Q503 D502, 503
(BACK LIGHT)
LED
O-BKLIGHT 28
DRIVE
Q502
D505
LED
O-VOLUME LED 3 VOLUME
DRIVE
XR-DB50 ONLY
65
O-CD ON
O POWER 38
IC501
D905-1
REMOTE
I-RMC 4 CONTROL
1 3
RECEIVER
D905-2
µCON +B
Q906
AC-CUT 20
Q901 IC904
RESET
12 RESET
RESET 3 1
SWITCH
POWER AMP
IC401
OUT-L 11 IN-CH1 OUT-CH1 5
28
OUT-R R-CH
27 Q403
13
OVERLOAD
DET
R-CH
PBOR 6
TH401
9
PBOL
7
8
THERMAL
Q406
DET
DC
Q407
DET
R-CH
MUTE
CONT
Q108-110
PROTECT
DET
FR VDD
+VM
Q208
PROTECT
DET
D115
ON
Q111
DET
D114
+VH
-VH
+VL
-VL
VM
TU9V
CD 7V
Q102,103
VDD
FR VDD
REG
Q104
3.3V
D VDD(3.3V)
REG
Q105
A VDD(3.3V)
POWER
CONTROL
MP3VD
IC902
V STBY
VDD
4 1
REG
D908
SWITCH
26 26
R-CH
J292
PHONES
RY201
L
J201
SPEAKER
R CH
R
Q207
SWITCH
• R-CH is omitted due to same as L-CH
Q112-115 • Signal Path
FAN
DRIVE : TUNER
R-CH
VM : CD
Q201,203,205
VP : AUX
+VP
SWITCH
: PB (TAPE)
+VL
Q202,204,206
-VP
: REC (TAPE)
-VP
SWITCH
R-CH
-VL
AEP, RU
POWER TRANSFORMER
D112
D113
D111
12
16
D110
13
15
6
8
D101
POWER TRANSFORMER (SUB)
D102
E51
PT002
POWER TRANSFORMER
IC101
12
12V
2 1
REG
Q106
16
VCC
13
REG
IC102
7V
2 1 15
REG
Q101
RELAY
D120- 122
DRIVE
PT003
POWER TRANSFORMER
(SUB)
6
D004-007
8
D002
PT001
7
6
AC
IN
2
RY001
1
4
PT004
7
6
AC
5
IN
4
3
S001
2
VOLTAGE
SELECTOR
120V
5 3 220V
RY002
6 4
230-240V
4
3
2
1