Sony HCD-C770 - Block Diagram - CHANGER, POWER SUPPLY Section

HCD-C770/C990
3636
7-5. BLOCK DIAGRAM – CHANGER, POWER SUPPLY Section –
3
POWER CONTROL
IC901
D
(AC IN)
S901 (2/2)
FAN
S901 (1/2)
TH901
POWER
TRANSFORMER
T901
M301
(FAN)
D919 D920
D933
D912
VCC
D906
12V
D905, 907
RECT
D902
LINE FILTER
LF901, 902
ISOLATOR
PC901
OSC
Q912, 914
BUFFER
IC909
B+ SWITCH
Q001, 002
RESET SWITCH
Q901
VOLTAGE DETECT
IC904
AND GATE
IC905
4
VCC
1
OCP/SYNC
5
FB/OLP
RECT
D911
POWER
SWITCHING
IC902
+20V
REGULATOR
Q905
POWER ON/OFF
CONTROL
Q901, 903
POWER ON/OFF
CONTROL
Q902, 906
FAN MOTOR
CONTROL
Q190, 191
+6.8V
REGULATOR
Q904
+12V
REGULATOR
IC908
+10V
REGULATOR
IC601
+5V
REGULATOR
IC600
VOLTAGE
DETECT
Q992
+6.5V
REGULATOR
IC903
M12V
D202, 203
U5V
S901 (1/2)
10V
D/A, A/D
+5V
LED DRIVE
Q911, 912
POWER ON/OFF
CONTROL
Q910, 911
B+ SWITCH
Q222, 223
TU 10V
+3.3V
REGULATOR
IC906
B+ SWITCH
Q990, 991
M
+6.5V
(AMP +6.5V)
+32V
(AMP +32V)
B+ SWITCH
Q003, 004
LEVEL SHIFT
Q731
+5V
REGULATOR
IC004
+3.3V
REGULATOR
IC005
D5V
DA05V,
VIDEO +5V
DA03V
+5V
REGULATOR
IC003
+2.6V
REGULATOR
IC605
DSP +2.6V
FL
FL1
VFL
+3.3V
REGULATOR
IC001
A3.3V
+5V
REGULATOR
IC002
A5V, RF+5V
+5V
REGULATOR
IC302
+3.3V
REGULATOR
IC303
STREAM PROCESSOR
+5V
STREAM PROCESSOR
+3.3V
TO FLUORESCENT
INDICATOR TUBE
DC-DC
CONVERTER
T801
D3.3V
+1.8V
REGULATOR
IC006
+2.5V
REGULATOR
IC702
+2.5V
+1.8V
+5.6V
REGULATOR
IC905
SYSTEM
CONTROLLER
+5V
D901
D900
D917
RESET SIGNAL
GENERATOR
IC907
U5V
RECT
D806 – 809
OSC
Q803, 804
D900
66SP RELAY
50TU-ON
34RESET
72PARA-DATA
67PARA-DO2
90STOP
91POWER-SW
89DVD-POWER
45ST-POWER
11P-PWM
S901 (2/2)
SYSTEM CONTROLLER
IC901 (3/3)
POWER
D812
STANDBY
P4
P5
OPT-SEN
OUT1 FIN
OUT2 RIN
STOCKER MOTOR DRIVE
IC721
CHANGER CONTROLLER
(MOTOR, SWITCH)
IC902
CHANGER CONTROLLER
(ROTARY ENCODER)
IC906
M761
(STOCKER)
M
7
9
4
2
20
19
79
P2
P3
P15 – P12
OUT1 FIN
OUT2 RIN
ROLLER MOTOR DRIVE
IC711
M781
(ROLLER)
M
7
9
4
2
22
21
P0
P1
OUT1 FIN
OUT2 RIN
MODE MOTOR DRIVE
IC701
M771
(MODE)
M
7
9
4
2
23
24
DISC INSERT
DETECT SENSOR
IC751
S711 (DISC INSERT (8/12cm))
S713 (DISC IN (8/12cm))
P15
P13
P12
P9
P11
P10
P8
5
(ON: When disc insert)
(MODE)
7
S714 (DISC IN (8cm))
8
S715 (DISC OUT)
11
S716 (STOCKER IN/OUT)
9
S717 (DISC POSITION)
10
S718 (STOCKING)
S711
S713
S714
S715
S716
S717
S718
12
DI1
26
71PARA-CLK
CLK
3
69PARA-LT1
LAT
4
68PARA-RST
RESET
2
RESET
2
25DO2 25DO2
DI2
16
14CLKO
CLK
3
13LATCHO
LAT
4
15DO1
DI1
26
OFF: When disc out from
play position
OFF: The moment disc in/out
from stocker
In the midst disc is moving
between play position and stocker,
ON: disc is play position side,
OFF: disc is stocker side
OFF: In the midst disc is moving
between play position and
stocker
(ON: Play position)
(8cm disc only)
ON: Play position
ROTARY
ENCODER
S771
5 – 8
P11 – P8
(STOCKER POSITION)
ROTARY
ENCODER
S702
9 – 12
DISC IN
X
(Page 34)
Y
(Page 34)