Block Diagram - Bus Control/Power Supply Section - Sony XR-C8220 Service Manual

XR-C8220
6-4. BLOCK DIAGRAM – BUS CONTROL/POWER SUPPLY Section –
RAM RESET
BACKUP +5V
IC501
RESET SIGNAL
BACKUP +5V GENERATOR
IC500
D523
SW800
RESET
REMOTE CONTROL
CN600
RECEIVER
BUS CONTROL IN
IC901
(FOR SONY BUS)
D604
3
SIRCS BUFFER
SIRCS
Q602
SONY BUS INTERFACE
IC602
2
RST RESET RST
RESET 2
SWITCH
5
DATA
DATA IN
DATA 6
DATA OUT
4
CLK CLK IN
CLK 4
BUS ON BUS
6
OUT ON IN
BUS ON
BUS ON 1
SWITCH
7
BATT
BATT BU IN
BATTERY
3
SWITCH
D606
TH600
D601
BATTERY DETECT
BATT B+
Q600
SYSTEM CONTROLLER
IC600 (4/4)
55 RAMBU
S600
POWER SELECT
90 RESET POWSEL 56
86 HSTX
B (OFF)
A (ON)
24 SIRCS
6
FM-ON
13 11
SYSRST
TU-ON 7
9 18 UNISO
8 17 UNISI
11 19 UNICKO
POWON 120
12 10
BUS-ON
10 77 BU-IN
LEDON 118
DOORSW 12
ILL-ON 29
DIMMER 30
CN900
(FRONT PANEL SIDE)
10
ACC IN 81
05
ILL IN 78
– 25 –
+5V
TUNER ON +5V
REGULATOR
(TUNER CIRCUIT B+)
Q10
+9V
+9V
REGULATOR
(FOR VT)
Q11
(FM CIRCUIT B+)
(AM CIRCUIT B+)
COM +8V
(AUDIO CIRCUIT B+)
BACKUP +5V
CSV (IC650) B+
D524
Q503
POWER ON/OFF
SWITCHING
D525
T550
INVERTER
TRANSFORMER
EL900
(ECECTRO OSC
LUMINESCENT Q556
LIGHT)
OSC OFF
SWITCH
Q557
DIMMER
CONTROL SWITCH
Q552
D553
5
CN500
(MAIN BODY SIDE)
D713
ACCESSORY CHECK
Q705
ILLUMINATION
LINE DETECT
(POWER CONNECTOR)
D719
BATT B+
POWER AMP
(IC700) B+
8 ANT+B
FM B+
11 FM+B VCC 7
REGULATOR
IC502
AM B+
10
AM+B
9 COM8V
3 2 4
D532 – 534 +6V
REGULATOR
IC503
B+ SWITCH
Q513
TH700
F1
B+ SWITCH
Q703, 704
+10V
P-ON +10V REGULATOR
Q504
REGULATOR
CONTROL SWITCH
Q505
+10V
REGULATOR
LCD +10V
Q506
REGULATOR
CONTROL SWITCH
Q507
CURRENT
REGULATOR B+ SWITCH
CONTROL SWITCH
IC550, Q553 Q550, 551
Q554, 555
D507
Q512
– 26 –
CN700 (2/2)
6
ANT REM
5
AMP REM
16
BATT
7
ACC
14
ILL