Block Diagram - Main Section - Sony CX-LDB10 Service Manual

7-2. BLOCK DIAGRAM — MAIN SECTION —
J702
AUDIO IN
R-CH
CD
CD SERVO A
Section
FM/AM TUNER PACK
FM 75Ω
FM ANT TU LCH
COAXIAL
TU RCH
ANT GND
ANTENNA
TU DI
AM ANT
TU DO
AM
TU CL
ANT GND
TU CE
TUNED
STEREO
TU-MUTING
MUTE
RDS DATA
RDS CLOCK
RDS CLOCK
L-CH
R-CH R-CH
HRPE
(REC/PB/ERASE)
ERASE
REC/PB
SWITCH
Q101,103,
252-254
TAPE MECHANISM
DECK BLOCK
CAPSTAN/REEL
MOTOR 9V
M M
MOTOR DRIVE 79 TA MO
Q404,405
(CAPSTAN/REEL)
PLUNGER
SOL 9V
DRIVE 78 TA SOL
Q402,403
(DECK-A)
PACK
R RFC 83 TA-SW
PLAY SW 82 TA PLAY SW
END SW 81 TA END SW
S1 – 16
FL401
FLUORESCENT
INDICATOR TUBE
G1 – G12
REMOTE CONTROL
RECEIVER 7 RMC_IN
IC402
CX-LDB10/LDB20
19 AUX-L
OUT-L 18
21 CD-L
23 TUNER-L
R-CH
DO
INPUT SELECT,
DI
ELECTRICAL VOLUME
CLK
IC101
CE
TUNED
STEREO
REC-O-L 28
RDS DATA
2 TAPE-L
CONT
13
REC BIAS
SWITCH B +10V
Q256,257
BIAS OSC
BIAS OSC
T251
Q255
32.768kHz
76 77 75 73 72 71 80 18 70 22 21 30 11
SYSTEM CONTROLLER
IC401 (2/2)
91 88
LED DRIVE LED DRIVE
Q407 Q408
(CD LID OPEN/CLOSE DETECT)
D410-415 D416
(STANDBY)
VOLUME
VOLUME
S401-415
(FRONT PANEL KEYS)
LDB10
POWER
AMP
IC301
15 +INA OUTA 7
R-CH 11 +INB OUTB 5
+
13
TH351
OVER
HEAT
DET
+
D602
Q354
FAN B+
+14V SW
Q603-605
MUTE
L : POWER ON
Q606
-35V
DC
AMP B+
DETECT
AMP B–
Q001,002,017
Q050,051
D002
MUTE
+
Q355
AC
+
DETECT
Q003,004
+1.5V
X401 X402
CD +1.5V
16MHz REGULATOR
IC303
10 15 13 85 87
CD +3.3V
M +7V
CD ON 92
+3.3V(MAIN)
VM +10V
S820
SYS +3.3V
SYS +3.3V
69 CD OPEN
I_POWER_DOWN 20
RESET SWITCH
RESET 12
ROTARY
Q401
ENCODER 97 VOL_ENCODER
RV401
POWER ON 86
D420
74 KEY WAKE UP
MUTE
KEY0, Q019
KEY1
17 17
LDB20
RELAY
RY351 SW
Q356
J701
PHONES
+
J302
L
–
SPEAKER
IMPEDANCE
+
USE 6 – 16Ω
R
–
+
D602
FAN
FAN MOTOR FAN B+
DRIVE +14V SW
Q601,602 Q603-605
MUTE
L : POWER ON
Q606
DC DET M+PV AC DET
Q901-904
+3.6V
D905
RECT
AMP B+
D901,902
TO
POWER AMP
RECT
AMP B–
D903,904
AC 3.6V
TO
FLUORESCENT
–29V –29V
INDICATOR TUBE
REGULATOR REGULATOR
FL –29V
Q013-016 Q013-016
+3.6V
+3.3V +3.3V
-35V
REGULATOR REGULATOR
Q011,012 Q018
M+7V
REGULATOR
Q010
+3.3V
REGULATOR
D012,015
AEP
+10V
RECT
REGULATOR
D907-910
IC003
D408
+3.9V
RECT
REGULATOR
D914,916
Q007-009
SUB B+
VOLTAGE D912
SWITCH
DETECT
Q409
IC403
L : POWER ON
Q005
LDB20
D009
+10V
REGULATOR
LED+B
IC002
D011
CX-LDB10/LDB20
J701
PHONES
+
J302
L
–
SPEAKER
IMPEDANCE
+
USE 6 – 16Ω
R
–
FAN
FAN MOTOR
DRIVE
Q601,602
• R-ch is omitted due to same as L-ch.
• Signal Path
: TUNER
: CD PLAY
MAIN POWER
TRANSFORMER
: TAPE PLAY
T902
: REC
: AUX IN
D911
RECT
(EXCEPT SP, MY, E51)
(SP, MY, E51)
RY901
SUB POWER
VOLTAGE
TRANSFORMER
SELECTOR
T901
S901
(AC IN)
(EXCEPT SP, MY, E51)
D006
MAIN POWER
VM+10V
RELAY DRIVE
Q006
SUB B+
L : POWER ON