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CDX-GT50W/GT500/GT500EE/GT550
CDX-GT50W/GT500/GT500EE/GT550
3-3. BLOCK DIAGRAM — DISPLAY SECTION —
(Page 17)
KEY ACKNOWLEDGE
SWITCH
Q710
X711
32.678kHz
79
80
41
40
52
76
77
SYSTEM CONTROL
IC711 (3/3)
FL900
VACUUM
FLUORESCENT
DISPLAYS
KEYIN0
KEYIN1
71
RCIN1
31
RE IN0
43
RCIN0
KEY ACK
XKEY ON
3
AREASEL0
DOOR IND
BATT
22
SYS RST
RESET
63
2 1
XIN
XOUT
X710
18.432MHz
82
83
OSC IN
OSC OUT
S700
RESET
38
37
39
D712
D710
S600
LED802,803
(NOISE DET)
LED900–915,
LSW901–905,
907,908
F+
F+
F+
F–
F–
F–
2
1
3
BU+3.3V
SYS RST
KEY MATRIX
RESET
IC710
IR
REMOTE CONTROL
SIGNAL RECEIVER
IC900
OUT
ENC902,LSW901–905,
907–909,S801,908,911–921
VDD VOUT
GCP SELECT
IC902
1
IN
2
FB
5
VCC
7
CT
RECT
D624
T620
DC–DC CONVERTER
TRANSFOMER
RECT
D622
4
OUT
BATT
BATTERY CHECK
BATT
BATT
64
SIRCS
2
CD
SECTION
C
RESET
MAIN
SECTION
D
MAIN
SECTION
E
S710
FREQUENCY
SELECT
()
BU+3.3V
J530
(REMOTE IN)
GT550
PANEL+B
10K
9K
5
NOSE SW
DDC ON
SWITCH
Q623,642
BU+5V DISP+3.3V
DISP
VDD+3.3V
REG
IC600
DOOR
INDICATOR
SWITCH
Q601
19
FL ON
66
FSW OUT
10
FSW IN
20
DISP ON
DC/DC
CONVERTER
IC620
25
BUS TX
26
BUS RX
18
MAS IF
14
RESET
1
54
FS SO3
41
FS SO2
51
FS SO1
52
FL CKO1
FL CKO2
FL CKI3
42
55
30
GCP1
2
47
GCP2
4
45
GCP3
28
GCP
24
CLK
23
SI1
22
SI2
21
SI3
11
5
57
GCP4
8
FLMD0
DISPLAY CONTROL
IC901
OSCILLATOR
FREQUENCY
SHIFT CONTROL
Q621,622
RESET
IC971
32
RE IN1
ENC902
ROTARY
ENCODER
BATTERY
CHECK
Q641,643
39
FBK
27
EDGE TGR1
EDGE TGR2
GCP TGR3
GCP TGR4
50
46
58
30
BK
29
LAT
37
LATCH
VDD1DISP+3.3V
31
VDD2
34
DISP+3.3V
D711
OSCILLATOR
FREQUENCY
COUNT SWITCH
Q620
27
DISP RX
28
DISP TX
29
MAST IF
67
DISP FLASHW
18
DISP RSET
X901
5MHz
12
13
X1
X2
(Page 18)
(Page 18)