Sony XR-C8220R Service Manual page 26

XR-C8220R
Q Q
3 7 6 3 1 5 1 5 0
7-5. BLOCK DIAGRAM – BUS CONTROL/POWER SUPPLY Section –
BACKUP +5V
CN600
BUS CONTROL IN
(FOR SONY BUS)
D604
3
SIRCS
2
RESET
5
DATA
4
CLK
T E
L 1 3 9 4 2 2 9 6 5 1 3
6
BUS ON
7
BATT
TH600
BATT B+
w w w
SYSTEM CONTROLLER
RAM RESET
BACKUP +5V 55 RAMBU
IC501
RESET SIGNAL
GENERATOR 90 RESET
IC500
86 HSTX
D523
SW800
RESET
REMOTE CONTROL
RECEIVER
IC901
SIRCS BUFFER
24 SIRCS
Q602
SONY BUS INTERFACE
IC602
RST RST
RESET
2 13 11
SYSRST
SWITCH
DATA DATA IN
6 9 18 UNISO
DATA OUT
8 17 UNISI
CLK CLK IN
4 11 19 UNICKO
BUS ON
BUS
OUT
ON IN
BUS ON
1 12 10 BUS-ON
SWITCH
BATT BU IN
BATTERY
3 10 77 BU-IN
SWITCH
D606
D601
BATTERY DETECT
Q600
x a o
. i
05
– 31 –
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IC600 (5/5)
S600
POWER SELECT
TUNER ON +5V
POWSEL 56
(TUNER CIRCUIT B+)
B (OFF)
A (ON)
6
FM-ON
TU-ON 7
POWON 120
Q Q
3 7
LEDON 118
D524
DOORSW 12
D525
ILL-ON 29
EL900
(LCD BACK LIGHT)
DIMMER 30
CN900
(FRONT PANEL SIDE)
10 5
u 1 6 3
y
CN500
(MAIN BODY SIDE)
ACCESSORY CHECK
ACC IN 81
78
ILL IN
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2 4
8 9 9
+5V
REGULATOR
Q10
+9V
+9V
REGULATOR 8 ANT+B
(FOR VT)
Q11
FM B+
11 FM+B
(FM CIRCUIT B+)
REGULATOR
IC502
AM B+
10
AM+B
(AM CIRCUIT B+)
COM +8V
9 COM8V
(AUDIO CIRCUIT B+)
3 2
D532 – 534
BACKUP +5V
6 3 1 5 1 5 0 8 9
P-ON +10V
REGULATOR
CONTROL SWITCH
Q505
Q503
POWER ON/OFF
SWITCHING
LCD +10V
REGULATOR
CONTROL SWITCH
Q507
T550
INVERTER
TRANSFORMER
CURRENT
OSC REGULATOR
CONTROL SWITCH
Q556 IC550, Q553
Q554, 555
OSC OFF
SWITCH
Q557
DIMMER
CONTROL SWITCH
Q552
m
D553
c o
D713
.
Q705
D507
ILLUMINATION
LINE DETECT
Q512
– 32 –
2
8 9 9
CN700 (2/2)
(POWER CONNECTOR)
D719
6
ANT REM
BATT B+
POWER AMP
(IC700) B+
VCC 7
4
+6V
REGULATOR
IC503
TH700
5
2 4 9 8 2 9 9 AMP REM
F701
16
B+ SWITCH
BATT
Q703, 704
+10V
REGULATOR
Q504
+10V
REGULATOR
Q506
B+ SWITCH
Q550, 551
7
ACC
14
ILL