Block Diagram -Display Section - Sony CDX-C880R Service Manual

CDX-C880R
4-5. BLOCK DIAGRAM — DISPLAY SECTION —
BU5V 2
RESET
Q501
BUS SO
D507
BATT
7
1 4
3 2 5
3 6
Q503
CD
8
SECTION
CN501
Q508
(BUS CONTROL IN)
IR
RECEIVER 1
IC901
LINK OFF
BU IN
BUS CLK
BUS SI
BUS ON
04
SYSTEM CONTROL
IC501 (2/2)
RESET
1 90 RST SO 13
IC601
CKO 14
SW801 LCD
16
CE
RESET
INH 32
D501
BUS INTERFACE
IC505
RST RESET
2 13 11 SYSRST
BU IN
BATT
3 10 77 BU IN
CLK CLK IN
4 11 19 CKI
DATA IN
9 18 SO UNI
DATA
6
DATA OUT
8 17 SI
1 BUSON BUSON
BUS ON 12 10
LCDANG 41
24 SIRCS
D509 ILL-ON 29
BACK-UP
BATT CHECK LEDON 118
Q504
LED802-804
LED 30
DIMMER
CONTROL BATT
Q624, 625
59 DOORSW 12
DOOIND
37 RE-IN1
EN900
ROTARY
ENCODER
NOSESW 80
36 RE-IN0
XO
92
46 KEYIN0
47 KEYIN1
LSW901-918,
XI 93
S900,SW803
D819
AD ON
35 X1A 73
KET ACTIVE
SW X0A 74
Q801, 802
76 KEYACK
DSTSEL0 49
48 RC-IN0
J801
72 RC-IN1
(REMOTE IN)
DATA 20
SO 21
BU 5V
CKO 22
LED801
CE
23
CSV
TIR
NAR 117
LED DRIVE
TIR IND
31
Q610
RST 9
– 37 –
LCD DRIVE
IC900
18 DATA
17 LCD900
CLK
LCD
19
CE
14 INH
6 VLC5
COLOR
7 VLC4 GREEN 1 SELECT
Q900, 902
8 VLC3
COLOR
AMBER 2 SELECT
Q901, 903
9 VLC2
10 VLC1
11 VLC0
LCD ANGLE
CONTROL
Q621, 623
ILL LED
BATT CONTROL CONTROL
Q617, 619 Q611, 612
ILL
BATT CONTROL DC +B
Q626, 627
ELECTRONIC
EL INVERTER DRIVE
LUMINESCENT LIGHT
IC550,Q553–556
EL900
DC +B
Q552
Q557
FRONT
PANEL
(NOSE SWITCH)
SW802
(NOSE DET)
X501
3.6864MHz
X502
32.768MHz
B+ SWITCH
CSV 3.3V BU5V
Q901,902 X901
14.31818MHz
CSV CONTROLLER
IC901
57
D0
D7 64
A0 1
8
11
A15 18
IC907(1/2)
A16 31
IC907(2/2)
A17 30
A18 29
A19 28
IC909
IC908
A17 26
RDD 44
RDC 42
FLASH CE 27
WRD 45
CSV AMP
IC906
DAC
5 7
ADC/
48
DAC
19 XO 1
BUFFER FILTER
XI 1
20
IC905(2/3) IC905(3/3)
AIN 0 8 10 7
51
ADC
MIX
AIN 1 14 12
50
38 DO
BUFFER
36 DI
IC905(1/3)
39 CLK
IGAIN0 33
37 CE
IGAIN1 32
35 REQ
5V REG
CSV 5V
IC904
21 RST
– 38 –
CSV SRAM
IC903
21
D0
D0–D7
23
25
29 D7
1
A0
A0-A15
5
11
20
A15
31
10 A16
6 A17
32 OE
CSV FLASH
IC902
28 OE
26
CE
11
WE
1
A0
A0-A19
8
16
25
45
A19
48
29
D0
31
D0–D7 33
35
38
40
42
D7
44
12 RESET
4
S-OUT MAIN SECTION
2
J901
(MIC)
COM8V