Block Diagram - Bus Control/Power Supply Section - Sony CDX-848X Service Manual

CDX-848X
6-2. BLOCK DIAGRAM – BUS CONTROL/POWER SUPPLY Section –
SYSTEM CONTROLLER
SW201
MAGAZINE
DETECT
ON : When magazine
51 MAGLK SW
is set
ELEVATOR
MOTOR DRIVE
IC301
OUT1
IN1
M104
9 MOTOR 3 4 ELVF
M
OUT2
(ELEVATOR) IN2
DRIVE
7 4 3 ELVR
EEPROM
IC203
SDA 5 32 EEDAT
SCL 6 28 EECLK
20 20
IC201 (2/2)
RV201
ELEVATOR HEIGHT
MCK 37
(ADDRESS)
RV202
ELEVATOR HEIGHT
EHS 36
SENSOR
AVRH 34
ELVON 24
BATTERY
BUCHK 46 CHECK
Q301
SW801
Z
EJECT SW 50
CDON 23
RESET SIGNAL
RESET 75 GENERATOR
IC303
SO
UNI SI 16 10
SI
UNI SO 17 9
SCK
UNI CK 18 11
BUSON OUT
BUSON 45 1
BUSON OUT
13
RESET
8
81 80
X201
4MHz
+8V
DRIVER +8V REGULATOR
IC304
D306
D307
+3.3V
SERVO +3.3V REGULATOR
IC306
+5V
DAC/SERVO +5V REGULATOR
IC305
PS901
+3.3V
B. UP +3.3V REGULATOR
Q303, 304
BUS INTERFACE
(FOR SONY BUS)
IC302
VCC 14
DATA
6
CLK
4
LOF
12
BUSON IN
2
RESET RST
7
SWITCH
CN901 (2/2)
CONTROL
7
B. UP
5
DATA
4
CLK
6
BUSON
2
RST