Read Sony CDX-L300 / CDX-L460X Service Manual online
23
CDX-L300/L460X
3-4. BLOCK DIAGRAM — DISPLAY SECTION —
KEY MATRIX
S501-511,
S512-521
KEY
ACTIVE
Q916
X802
32.768kHz
37
38
40
41
29
18
20
19
30
43
47
SYSTEM CONTROL
IC801 (3/3)
LCD DRIVE
IC551
KEY 0
DATA
CLK
CE
LCD DO
LCD CLK
LCD CE
ILL POWER
CONTROLLER
Q914
INITIAL
RESET
D552
SWITCH
Q915
ILL + B
KEY 1
KEY 1
KEY 0
KEY ACK
AD ON
XT2
XT1
X2
48
ILL ON
BATT
X1
X801
8.38MHz
LED501-504
D561-581
LCD BACK
LIGHT
62
61
60
COM1
COM2
LCD
LCD501
D914
(
)
KEY
ILLUMINATION
(
)
64
•
63
1
|
23
•
25
|
53
•
SEG1
SEG52
|
DATA
CLK
CE
ILL+B
57
INH
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