Block Diagram - Bus Control/Power Supply Section - Sony XR-C7220R Service Manual

XR-C7220R
6-4. BLOCK DIAGRAM – BUS CONTROL/POWER SUPPLY Section –
BACKUP +5V
RESET SIGNAL
BACKUP +5V GENERATOR
IC500
REMOTE CONTROL
CN600
RECEIVER
BUS CONTROL IN
IC901
(FOR SONY BUS)
D604
3
SIRCS BUFFER
SIRCS
Q602
2
RST
2
RESET
5
DATA
DATA 6
4
CLK
CLK 4
BUS ON
6
OUT
BUS ON 1
7
BATT
BATT
3
D606
TH600
D601
BATT B+
SYSTEM CONTROLLER
IC600 (4/4)
RAM RESET
55
RAMBU
IC501
90 POWSEL 56
RESET
86 HSTX
D523
SW800
RESET
24 SIRCS
SONY BUS INTERFACE
IC602
6
FM-ON
RST
RESET
13 11
SYSRST
TU-ON 7
SWITCH
POWON 120
DATA IN
9 18 UNISO
DATA OUT
8 17 UNISI
CLK IN
11 19 UNICKO
BUS
ON IN
BUS ON
12 10 BUS-ON
SWITCH
BU IN
BATTERY
10 77 BU-IN
SWITCH
LEDON 118
BATTERY DETECT
Q600
DOORSW 12
29
ILL-ON
DIMMER 30
ACC IN 81
05
ILL IN 78
– 29 –
(Page 26)
D
S600
POWER SELECT
TUNER ON +5V
(TUNER CIRCUIT B+)
B (OFF)
+9V
(FOR VT)
A (ON)
D524
POWER ON/OFF
SWITCHING
D525
T550
INVERTER
TRANSFORMER
EL900
(LCD BACK LIGHT)
DIMMER
CONTROL SWITCH
Q552
CN900
(FRONT PANEL SIDE)
D553
10 5
CN500
(MAIN BODY SIDE)
ACCESSORY CHECK
Q705
D719
+5V
REGULATOR
Q10
+9V
REGULATOR 8 ANT+B
Q11
FM B+
11 VCC 7
FM+B
(FM CIRCUIT B+)
REGULATOR
IC502
AM B+
10 AM+B
(AM CIRCUIT B+)
COM +8V
9 COM8V
(AUDIO CIRCUIT B+)
3 2 4
D532 – 534
+6V
BACKUP +5V REGULATOR
IC503
TH700
B+ SWITCH
Q703, 704
+10V
P-ON +10V REGULATOR
Q504
REGULATOR
CONTROL SWITCH
Q505
Q503
+10V
LCD +10V REGULATOR
Q506
REGULATOR
CONTROL SWITCH
Q507
CURRENT
OSC REGULATOR
B+ SWITCH
CONTROL SWITCH
Q556 IC550, Q553
Q550, 551
Q554, 555
OSC OFF
SWITCH
Q557
D713
D507
ILLUMINATION
LINE DETECT
Q512
– 30 –
CN700 (2/2)
(POWER CONNECTOR)
6
ANT REM
BATT B+
POWER AMP
(IC700) B+
5
AMP REM
F701
16
BATT
7
ACC
14
ILL