Sony CDX-CA540X - Block Diagram -Display Section

17 17
CDX-CA540X/CA590X
3-5. BLOCK DIAGRAM — DISPLAY SECTION —
X802
32kHz
37
38
40
41
29
30
43
SYSTEM CONTROL
IC801 (3/3)
LCD DRIVER
IC901
KEY 0
DATA
CLK
CE
ILL POWER
CONTROL
Q914
ILL B+
SWITCH
Q915
ILL B+
KEY 1
KEY 1
KEY 0
KEY MATRIX
LSW901-918
S902,903,931
KEY ACK
35
AD ON
27
SHIFT
31
R COM
47
NOSE
XT2
XT1
X2
LCD DO
LCD CLK
LCD CE
48
ILL ON
44
SIRCS
BATT
X1
X801
8.38MHz
LED901-906
LSW901-918
REMOTE CONTROL
RECEIVER
IC951
LCD
BACKLIGHT
64
63
62
16
17
15
COM1
COM4
LCD
LCD901
LED914,915
(
)
LED930,931
KEY
ILLUMINATION
()
52
|
55
1
|
12
•
15
|
45
SEG1
SEG12
|
|
SEG15
SEG45
|
•
DI
CL
CE
VCC
1
OUT
2
8
DOOR SW/IND
AD ON
Q801
RELAY
BOARD
SW801
(NOSE)
CNP802
(REMOTE IN)
LED
POWER CONTROL
Q908,922
DST SEL
SW803
FREQUENCY
SELECT
FM50k
AM9k
FM200k
AM10k
32
— Main Board —
1
2
8.38MHz
IC801
r;
(X2)
32.768kHz
IC801
ej
(XT2)
5Vp-p
3Vp-p
3
10.25MHz
IC601
1
(XO)
2.5Vp-p
• Waveforms
— Servo Board —
(MODE: CD PLAY)
1
2
3
IC1
ts
(PACK)
IC1
uj
(RFO)
1.2Vp-p
4
Approx. 100mVp-p
IC1
oa
(FEO)
0V
5
Approx. 100mVp-p
IC1
od
(TEO)
2Vp-p
16.9344MHz
IC1
wd
(XTAL)
5Vp-p
0V
3.2msec