Sony CDX-540RF - Block Diagram - MAIN Section

44
CDX-540RF/545RF/545XRF
2-2. BLOCK DIAGRAM – MAIN Section –
OUTPUT
CN703
22
LIN
1
RIN
A
L, R L
R
17 16 15
DATA CLK CE
3
ACC
2
B. UP
POWER
CN303
98
97
96
PLLDATA
PLLCLK
PLLCE
PLLDATA
PLLCLK
PLLCE
62
ACCIN
60
MCK
PLLDATA PLLCLK PLLCE
ACCESSORY
CHECK
Q308
D311
59
EHS
51
AVREF
ELVON
RV201
ELEVATOR HEIGHT
(ADDRESS)
RV202
ELEVATOR HEIGHT
SENSOR
REFERENCE VOLTAGE
SWITCH
Q201
B. UP +5V
9
LCDON
36
+8V
REGULATOR
IC304
DRIVER +8V
+10V
REGULATOR
Q311
+5V
REGULATOR
IC304
FM STEREO
TRANSMITTER
+5V
LCD +10V
REGULATOR
CONTROL
Q309, 310
BUCHK
75
D306
D302
D307
38
CDON
8
EJECT
63
SW302
(RESET)
B. UP +5V
KEY +5V
+5V
REGURATOR
Q303
+5V
REGURATOR
IC305
DAC/SERVO +5V
Z
SW301
76
MGLK
74
ELVF
73
ELVR
SW201
MAGAZINE
DETECT
ON : When magazine
is set
3
4
48
EEDATA
49
EECLK
40
XTAL
41
EXTAL
80 KEYACK
95
ADON
58
KEYIN
5
6
9
7
MOTOR
DRIVE
IN1
IN2
OUT1
OUT2
ELEVATOR
MOTOR DRIVE
IC301
M
M104
(ELEVATOR)
DATA
CLK
EEPROM
IC203
X201
12MHz
KEY ACTIVE
SWITCH
Q231
KEY +5V
SWITCHING
Q232
44
LCDDATA
45
LCDCLK
37
LCDCE
43
LCDINH
83
SIRCS
6
7
4
5
8
1
3
DISPLAY
CN302
LCD +10V
POWER ON
SIRCS
LCDINH
LCDCE
LCDCLK
LCDDATA
KEYA/D
B. UP +5V
SYSTEM CONTROLLER
IC201 (2/2)
• SIGNAL PATH
: CD PLAY
RESET
HIGH VOLTAGE
DETECT
Q301
BATTERY
CHECK
Q301, 302
RESET SIGNAL
GENERATOR
IC303
D308
F301
D312
PRE-EMPHASIS
& LIMITER
PRE-EMPHASIS
& LIMITER
L. P. F.
L. P. F.
MPX
14
XIN
13
XOUT
OSC
MUTING OSC
BUFFER, AMP
Q702
RF AMP
PHASE
DETECTOR
PROGRAM
COUNTER
SHIFT
REGISTER
X701
7.6MHz
(page 3)
5
MPX
ADJ
18
MUT
FM STEREO
TRANSMITTER
IC701
9 11
7
RF IN
PD
RF OUT
L. P. F.
RV701
TRANSMITTER
MODULATION
SENSITIVITY