Block Diagram -Display Section - Sony CDX-C8850 Service Manual

CDX-C8850/C9500
4-3. BLOCK DIAGRAM — DISPLAY SECTION —
1
2
3
CN271
(BUS CONTROL IN)
Q275
LINK OFF
BUS ON
2
BUS CLK
BUS SI
CD
BU IN
SECTION
RESET
(Page 35)
BUS SO
Q273
BU5V
BU5V
IR
RECEIVER
IC910
KEY MATRIX
LSW701, 900-906
LSW909-918
S900
CNJ272
(REMOTE IN)
04
BUS INTERFACE
IC271
RST RES
2 13
BATT
D276
BATT BUIN
3 10
CLK
CLK IN
7 4 11
DATA
IN
4 9
DATA
DATA
5 6
OUT
6 8
BUS ON
8 SWITCH 1 12
BUS ON BUS ON
Q272
SYSTEM CONTROL
IC500 (2/2)
RESET
2 1 90 SYS RST 6
RST
IC506
UNI SO 21
S703
RESET 7
BUS ON
UNI SI 20
UNI CK 22
SRAM
2 RESET 1 35 SRAM BU BU IN 77
IC507
BOOT 64
DOOR SW 115
RX/FLS SI
12
1 24 SIRCS TX/FLS SO 13
DSP CK 19
DSP SI 17
SPLAT 78
47 KEY IN0
48 KEY IN1
LCD ANG 41
107 DOOR IND 95
AD ON
KEY
PU5V
ACTIVE 76 KEY ACK
Q523
BU5V
60 RC IN1
49 RC IN0
S500
(NOSE DET)
109 NOSE SW
PWM 65
ROTARY
1 RE IN0
ENCODER
2 RE IN1
RE900
SHIFT 72
DISPLAY CONTROL
IC701
LCD CLK 64
49 LCD DATA 60
BU IN
LCD CE1 70
101 UNI SCK LCD INH 66
98 UNI SI
38 BUS ON
Q274
97 UNI SO
RESET
IC702
6 3A 1Y 7 81
RES
2A
3
LCD CEO 69
85 XTAL
86 EXTAL
X701
18.432MHz
57 BOOT
54 DOOW SW
62 RX
60 TX/FLSSO
63 SP CK ILL ON 52
61 SP SI
33
DSPLAT
10V
CONTROL
Q253, 256
REG
CONTROL
Q421, 422
VOLTAGE POWER
CHECK CONTROL
IC421 Q253, 256
MD5V
REG
10V BATT
Q884
PWM
POWER
S8V
BATT
CONTROL
Q881
IC871
SHIFT POWER
CD
DRIVER 4 MD ON CONTROL
SECTION
Q890 Q887
(Page 35)
36 36
LCD DRIVER
IC920
7 CSK
8
DATA
9 CE1
11 0E
IC921
16 VLCD
LIQUID CRYSTAL
17 VLC1
DISPLAY PANEL
LCD900
18 VLC2
19 VLC3
LCD DRIVER
IC900
LCD10V
POWER
CONTROL
Q904
14 LCD INH
LCVD10V
17 LCD CLK P ON 3
18
LCD DATA
19 LCD CE0
AMBER/GREEN
GREEN 1 SELECT
Q900, 903
11 VLCD
10 VLC1
AMBER/GREEN
AMBER 2 SELECT
Q901, 902
9 VLC2
8
VLC3
LED
DIMMER 4 DRIVE
Q971, 972
7 VLC4
6
VLC5
LCD10V
POWER LCD CONTRAST POWER
10V
ADJUST CONTROL
Q254, 255
Q251
BATT
POWER
REG REG
CONTROL BATT
Q885 Q882, 883
Q886 (1/2)
POWER
CONTROL
Q886 (2/2)
REG
VDD5V
Q888