Block Diagram - Display/Key Control/Bus Control/Power Supply Section - Sony XR-3100R Service Manual

XR-3100R/C33R
6-3. BLOCK DIAGRAM – DISPLAY/KEY CONTROL/BUS CONTROL/POWER SUPPLY Section –
J501
REMOTE IN
72
48
D653
LSW901 – 903, 905,
LSW906, 921 – 923,
LSW925 – 933, S901 46
47
D501
RE901
VOLUME/BASS/TREBLE/
BALANCE/FADER CONTROL
ENCODE –
ROTARY
36
ENCODER
ENCODE +
37
RE901
BACKUP +5V
KEY ACTIVE
SWITCH
Q651, 652
35
76
S981
D-BASS
51
4
4
12
15 15
80 NOSESW
CNP901 CN500
(FRONT PANEL SIDE) (MAIN BODY SIDE)
RESET SIGNAL
BACKUP +5V GENERATOR 90
IC652
86 HSTX
S503
(RESET)
S501
POWER SELECT
A (ON)
56
B (OFF)
05
LIQUID CRYSTAL DISPLAY DRIVER
SYSTEM CONTROLLER
IC901
IC501 (3/3)
RC-IN1 LCD SO 13 64 DI OSC 60
LCD CKO 14 63
CL
RC-IN0
LCD CE 16 62 CE
3
SHIFT
KEYIN0
KEYIN1
RE-IN0
RE-IN1
RST
SYSRST 11
DATA-OUT
18
UNISO
DATA-IN
UNISI 17
CLK
UNICKO 19
BUS ON
AD-ON
BUS-ON 10
BU-IN
BU-IN 77
KEYACK
D-BASS
DOORSW
6
FM-ON
TU-ON 7
POWON 120
RESET
POWSEL
ILL-ON 29
ACC IN 81
73 74
93 92
X502 X501
32.768kHz 3.68MHz
ILL B+
LSW901 – 903, 905, 906,
LED DRIVE
LSW921 – 923,
Q945
LSW925 – 933
LIQUID CRYSTAL
DISPLAY
LCD901
+5V
(TUNER CIRCUIT B+)
FM/AM TUNER UNIT
(TU1) B+
(AUDIO CIRCUIT B+)
20 20
SONY BUS INTERFACE
IC701
RST RST
RST
RESET
13 2
SWITCH
DATA-OUT DATA
DATA IN
9 6
DATA-IN DATA OUT
8
CLK CLK IN CLK
11 4
BUS ON
BUS
BUS ON OUT
ON IN BUS ON
12 1
SWITCH
BU-IN BU IN BATT
BATTERY
10 3
SWITCH
D702
(C33R)
D701
BATTERY DETECT
Q701
D707
BATTERY DETECT
Q701 – 703
(3100R)
D673
D674
(C33R)
6 AMP+B
+5V
REGULATOR 8 ANT+B POWER AMP
Q71
FM B+ 11 FM8V
REGULATOR
IC671 VCC 7
AM B+ 10 AM8V
COM +8V
9 COM8V
5 BU+B
BACKUP +5V
D651
3 2 4
+9V
+9V
REGULATOR
(TUNER CIRCUIT B+)
Q81
REGULATOR
CONTROL SWITCH
Q82
PL901, 902
(LCD BACK LIGHT)
+10V
ILL B+ REGULATOR
Q631
REGULATOR
CONTROL SWITCH
Q633 D662
ACCESSORY CHECK
Q661
CN701
BUS CONTROL IN
(FOR SONY BUS)
2
RESET
5
DATA
4
CLK
6
BUS ON
7
BATT
TH701
BATT B+
CN601 (2/2)
(POWER CONNECTOR)
2
ANT REM
7
AMP REM
BATT B+
(IC611) B+
1
BATT
5
ACC