Block Diagram - Cd Text Decoder/Bus Control/Power Supply Section - Sony CDX-616 Service Manual

CDX-616
7-2. BLOCK DIAGRAM – CD TEXT DECODER/BUS CONTROL/POWER SUPPLY Section –
WFCK
A
(Page 20)
IC503
SCLK
B
(Page 20)
SBSO
C
(Page 20)
SCOR
D
(Page 20)
S-RAM
IC502
WE
05
SYSTEM CONTROLLER
CD TEXT DECODER
IC201 (2/2)
IC501
77 WFCK CSO 7 79 CSI
CSI
6 78 CSO
CCLK 5 77 CCLK
8 SCLK
REQ 4 76 REQ
BUSY 56 74 BUSY
9 SSI
76 SCOR
RST 28 75 RESET
BUCK 78
CE 20 62 CE
27 63 WE
D501
30 29
X501
10MHz
32
– 21 –
SI 49
SO 50
SCK 48
55
BUS.ON
RST 30
D306
W.UP 62
MICON +5V
EJECT 64
SW301
6
SW201
MAGAZINE EJECT
MGLK 57
END DETECT
SW202
MAGAZINE IN/OUT
60
MAG.SW
DETECT
ELEVATOR MOTOR DRIVE
IC301
FIN OUT1
ELV.R 70 4 1
ELEVATOR
M104
M
RIN OUT2
MOTOR DRIVE (ELEVATOR)
ELV.F 58 5 7
RV201
MCK 38
LINEAR POSITION
SENSOR
RV202
ELEVATOR HEIGHT
EHS 39
SENSOR
REFERENCE VOLTAGE
AVREF 37 SWITCH MICON +5V
Q201
ELV.ON 69
CD.ON 68
61
BU.CHK
31
X201
8MHz
BUS INTERFACE
(FOR SONY BUS)
IC302
SO DATA
10 6
SI
9
SCK CLK
11 4
BUSON OUT LOF
1 12
BUSON OUT BUSON IN
13 2
RESET RST
RESET
8 7
SWITCH
RESET SIGNAL
MICON +5V
GENERATOR
IC304
+9V D309
SERVO +9V REGULATOR
Q309
REGULATOR
CONTROL SWITCH
Q308
D311
REGULATOR
MICON +5V
Q303
D313
+5V
SERVO +5V,
REGULATOR
DAC +5V
Q307
REGULATOR
CONTROL SWITCH
Q306
D308
BATTERY CHECK
LEVEL SHIFT
Q301, 302 D307
– 22 –
CN901 (2/2)
CONTROL
(FOR SONY BUS)
5
DATA
4
CLK
6
BUSON
2
RST
7
B.UP