Block Diagram - Bus Control/Power Supply Section - Sony CDX-737 Service Manual

CDX-737
Q Q
3 7 6 3 1 5 1 5 0
7-3. BLOCK DIAGRAM – BUS CONTROL/POWER SUPPLY Section –
SW201
MAGAZINE DETECT
SW202
MAGAZINE IN/OUT
DETECT
ELEVATOR MOTOR DRIVE
IC301
OUT1 FIN
1
ELEVATOR
M104 M
OUT2 RIN
7 MOTOR DRIVE
(ELEVATOR)
T E
L 1 3 9 4 2 2 9 6 5 1 3
EEPROM
IC202
SDA
SCL
w w w
SYSTEM CONTROLLER
IC201 (3/3)
MCK 38 LINEAR POSITION
EHS 39
ELEVATOR HEIGHT
AVREF 37
57 MGLK
ELV.ON 69
60 MAG.SW
CD.ON 68
BU.CHK 61
SI 49
4 70 ELV.R
5 ELV.F
58
SO 50
SCK
48
BUS.ON 55
RST 30
5 12 EE.DATA
6 11 EE.CLK
D306
W.UP 62
EJECT 64
05
32 31
X201
8MHz
x a o
y
. i
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RV201
SENSOR
RV202
SENSOR
REFERENCE VOLTAGE
MICON +5V
SWITCH
Q201
BUS INTERFACE
(FOR SONY BUS)
IC302
SO DATA
10 6
SI
Q Q
9
3 7 6
SCK CLK
11 4
BUSON OUT LOF
1 12
BUSON OUT
BUSON IN
13 2
RESET
RESET RST
8 7
SWITCH
RESET SIGNAL
GENERATOR MICON +5V
IC304
MICON +5V
SW301
Z
u 1 6 3
18 18
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2 4
8 9 9
+9V
SERVO +9V REGULATOR
Q309
REGULATOR
CONTROL SWITCH
Q308
D311
REGULATOR
MICON +5V
Q303
+5V
SERVO +5V,
REGULATOR
DAC +5V
Q307
REGULATOR
CONTROL SWITCH
Q306
3 1 5 1 5 0 8 9
BATTERY
LEVEL SHIFT
CHECK
D307
Q301, 302
m
c o
.
2
8 9 9
7
B.UP
2 4 9 8 2 9 9
D308
5
DATA
4
CLK
6
BUSON
2
RST
CN901 (2/2)
CONTROL
(FOR SONY BUS)
BU CHECK
J (Page 17)
RESET
I (Page 17)