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CDX-GT41UW/GT410U/GT460U/GT460US
4-2. BLOCK DIAGRAM — DISPLAY SECTION —
KEY MATRIX
LSW901,902
S901–904,906–915
RE901
PUSH SELECT
(VOLUME)
ROTARY
ENCODER
PANEL+B
MAIN
A
SECTION
(Page 19)
BU+3.3V
CDX-GT41UW/GT410U/GT460U/GT460US
SYSTEM CONTROL
IC501 (2/2)
41
KEYIN0
FL SO
19
KEYIN1
40
FL SCK
20
FL CS
18
D503
KEY ACKNOWLEDGE
SWITCH
52
KEYACK
Q664
48
AD ON
31 RE-IN0
32 RE-IN1
62 NOSESW
XOUT
80
X502
REMOTE CONTROL
32.768kHz
SIRCS
XIN
79
SIGNAL RECEIVER
64
IC971
OSCOUT
83
X501
18.432MHz
OSCIN
82
RESET
FL ON
89
RESET
77 RESET
IC602
DD ON
90
S103
RESET
FSW OUT
75
BU+3.3V
10K
S501
FSW IN
10
(
FREQUENCY
)
3 AREASEL2
SELECT
9K
USB ON
92
USB OVER
91
GT460U/GT460US
FL901
FLUORESCENT
INDICATOR TUBE
GRID1
20
GRID2
19
14
DIO
CLK
12
GRID3
16
10
CS
17
FL DRIVE
•
3G
Q883
18
6
FL DRIVE
2G
•
Q882
42
1G
41
Q1
40
Q2
39
RESET
15
PANEL+B
FL +12V
VH
9
REG
IC801
VDD+3.3V
VDD(+3.3V)
5
REG
IC972
FL+3V
D804
1
F+
•
REG
2
IC802
44
F–
•
45
DC-DC CONVERTER
IC803
BATT
1
VIN
SW
2
7
EN
SHIFT
CONTROL
6
RT
INV
5
SWITCH
Q805
D801
FB
3
20
20
FL VH+12V
LED941–947,
LED841–847,
950–957,
850–857,
FL DRIVE
961–963,
861–864,
Q881
LSW901,902
LSW901,902
LED DRIVE
Q991
LED DRIVE
Q992
BATT
PANEL+B
USB CONTROL
IC804
6
2
•
•
IN
OUT
7
3
•
8
4 /EN
5 /OC
CN902
1 CN902
CD
MECHANISM
USB D–
2
UNIT
USB D+
3
(MG-101U)
4
(2/2)
PANEL+B
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