Block Diagram - Main Section - Sony CDX-454RF Service Manual

CDX-454RF/454XRF
7-2. BLOCK DIAGRAM – MAIN Section –
L, R L LIN
A
22
(Page 21)
R RIN
1
XIN
14
X701
7.6MHz
XOUT
13
SW201
MAGAZINE
DETECT
ON : When magazine
76 MGLK
is set
ELEVATOR
MOTOR DRIVE
IC301
OUT1
IN1
M104
9 MOTOR 3 74 ELVF
M
OUT2
(ELEVATOR) IN2
DRIVE
7 4 73 ELVR
40 XTAL
X201
12MHz
41 EXTAL
KEY ACTIVE
KEY +5V SWITCH 80 KEYACK
Q231
95 ADON
SWITCHING
CN302
Q232
DISPLAY
6
KEYA/D 58 KEYIN
7
LCDDATA 44 LCDDATA
4
LCDCLK 45 LCDCLK
5
LCDCE 37 LCDCE
8
LCDINH 43 LCDINH
3
POWER ON LCD +10V
22
RV701
TRANSMITTER
MODULATION
SENSITIVITY
PRE-EMPHASIS
L. P. F.
MPX
& LIMITER
ADJ
MPX MUTING 5
PRE-EMPHASIS
L. P. F.
BUFFER, AMP
& LIMITER
OSC
FM STEREO
TRANSMITTER
IC701
18
SYSTEM CONTROLLER
IC201 (2/2)
PLLDATA
PLLDATA 98
PLLCLK
PLLCLK 97
PLLCE
PLLCE 96
ACCIN 62
RV201
ELEVATOR HEIGHT
MCK 60
(ADDRESS)
RV202
ELEVATOR HEIGHT
EHS 59
SENSOR
REFERENCE VOLTAGE
AVREF 51 SWITCH
Q201
ELVON 9
BATTERY D306 D307
BUCHK 75 CHECK
Q301, 302
HIGH VOLTAGE
DETECT
Q301
D302
LCDON 36
RESET SIGNAL
RESET 38 GENERATOR
IC303
SW302
(RESET)
SW301
Z
EJECT 63 B. UP +5V
CDON 8
22
RF IN RF OUT
9 OSC RF AMP 11 L. P. F.
PD
PHASE PROGRAM
7
Q702 DETECTOR COUNTER
SHIFT
REGISTER
5 4 3
D312
D311
ACCESSORY
CHECK
Q308
+8V
B. UP +5V DRIVER +8V REGULATOR
IC304
FM STEREO +5V
TRANSMITTER REGULATOR
+5V IC304
+10V
LCD +10V REGULATOR
F301 Q311
REGULATOR
CONTROL
Q309, 310
B. UP +5V
+5V
KEY +5V REGURATOR
Q303
D308
+5V
DAC/SERVO +5V REGURATOR
IC305
CN703
OUTPUT
CN303
POWER
3
ACC
2
B. UP
• SIGNAL PATH
: CD PLAY