Block Diagram - Mechanism Deck, Power Supply Section - Sony HCD-S550 Service Manual

HCD-S550/S880
7-5. BLOCK DIAGRAM – MECHANISM DECK, POWER SUPPLY Section –
LOADING MOTOR DRIVE
IC711
M711 4 OUT1 FIN 7
M
(LOADING)
2 OUT2 RIN 9
EJECT MOTOR DRIVE
IC701
4 7
M751 OUT1 FIN
M
(ELECT)
2 OUT2 RIN 9
ROTARY
ENCODER
S741
(MODE)
S711
(DISC IN/OUT)
EJECT
INSERT
DISC IN
X
(Page 30)
LED DRIVE
81 Q701
SEN2
DISC INSERT
OPT-SEN2 78 DETECT SENSOR
IC731
CHUCKING
OPT-SEN 79 DETECT SENSOR
IC721
PARA-DO2 67
PARA-DATA 72
PARA-CLK 71
PARA-LT1 69
PARA-RST 68
TU-ON 50
SP RELAY 66
STOP 90
RESET SWITCH
RESET 34
Q901
SYSTEM CONTROLLER
IC901 (3/3)
POWER-SW 91
DVD-POWER 89
P-PWM 11
ST-POWER 45
MECHANISM DECK
CONTROLLER
IC902
23 P1
24 P0
TO FLUORESCENT
INDICATOR TUBE
21
P3
22 P2
DSP +2.6V
5 P15
6 P14
20 P2
25 DO2
26 DI1
3 CLK
4 LAT
2 RESET
RESET SIGNAL VOLTAGE DETECT
AND GATE
GENERATOR IC904
IC905
IC907
D812
LED DRIVE
S901 (2/2)
STANDBY
Q911, 912
POWER
U5V
S901 (1/2)
DC/DC
CONVERTER
T801
FL
FL1
RECT
VFL
D806 – 809
OSC
Q803, 804
+3.3V
STREAM PROCESSOR
REGULATOR
+3.3V
IC303
+5V
STREAM PROCESSOR
REGULATOR
+5V
IC302
+2.6V
REGULATOR
IC605
+3.3V
DA03V REGULATOR
IC005
+5V
DA05V,
REGULATOR
VIDEO +5V
+3.3V IC004
A3.3V REGULATOR
IC001
+5V
A5V, RF+5V REGULATOR
IC002
+5V
B+ SWITCH
D5V REGULATOR
Q003, 004
IC003
+6.5V
(AMP +6.5V)
+5V
D/A, A/D
REGULATOR
+5V
IC600
+10V
10V REGULATOR
IC601
D203
B+ SWITCH
TU 10V
Q222, 223
B+ SWITCH
M12V
Q001, 002
12V
POWER ON/OFF
CONTROL
Q902, 906
D900
D917
D900
U5V
D901
+5.6V
SYSTEM
REGULATOR
CONTROLLER
+5V IC905
+2.5V
+2.5V
REGULATOR
IC702
+1.8V
+1.8V REGULATOR
IC006
D3.3V
POWER ON/OFF
CONTROL
Q910, 911
32 32
+32V
(AMP +32V)
+6.5V
REGULATOR
IC903
M301
M
(FAN)
FAN MOTOR
CONTROL
Q190, 191
+12V
REGULATOR
IC908
POWER
TRANSFORMER
TH901
T901
RECT
VOLTAGE
DETECT
Q992
RECT
D911
B+ SWITCH
Q990, 991
D906
+20V
REGULATOR
Q905
+6.8V
REGULATOR
Q904
BUFFER OSC SWITCHING
+3.3V IC909 Q912, 914 IC902
REGULATOR
IC906
POWER ON/OFF
CONTROL
Q901, 903
FAN
Y (Page 30)
S901 (1/2)
POWER
S901 (2/2)
(AC IN)
LINE FILTER
D902 LF901, 902
D919 D920
3 D
D933
4 VCC
1 OCP/SYNC
D905, 907
ISOLATOR
5 FB/OLP
PC901
D912
POWER CONTROL
IC901