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1919
XR-C7500R/C7500RX
LED910 – 915
(LCD BACK LIGHT)
(XR-C7500RX)
(XR-C7500R) (XR-C7500R)
05
80
REIN1
KEYACK
GREEN
79
62
TX
13
85
96
OSC
KEYIN1
REIN0
116 115
KEYIN0
X1
X0
X1A
X0A
RCIN0
RCIN1
46
47
48 72
93
92
73
74
KEY ACTIVE
SWITCH
Q406, 407
OSC
D580
D520
AMBER
AD-ON
117
NOSE-SW
RX
G
(Page 18)
J
(Page 20)
DSPDATA,DSPCKO
LSW801,901–917,
S901 – 904
S600
(NOSE DETECT)
ROTARY
ENCODER
RE901
B/U +5V
CN901
FRONT PANEL SIDE
CNP801
(XR-C7500R)
CN801
(XR-C7500RX)
MAIN BODY SIDE
BATT B+
8 1
LED
DRIVE
Q902
X601
3.68MHz
X600
32.768kHz
XTAL
EXTAL
85
86
X800
18.432MHz
C953, R957
SYSTEM CONTROLLER
IC600 (3/4)
LIQUID CRYSTAL DISPLAY
DRIVE CONTROLLER
IC800 (1/2)
LIQUID CRYSTAL DISPLAY DRIVER
IC901
1 – 74
SEG1 – SEG74
83 – 76
COM1 – COM8
LIQUID CRYSTAL DISPLAY
LCD901
VOLUME/BALANCE/
FADER CONTROL
RE901
J520
REMOTE IN
DOORIND
118
LED DRIVE
Q580
LCD-DATA
100
LCD-CLK
99
LCD-CE
98
TX/LCD-DATA
60
RX
12
LCD-SCK
64 66
LCD-CE1
SP-SCK
61
SP-SI
TRDT
SCK
63
SP-LAT
BOOT
33 57
4
106
SA LAT
BOOT
LED801
(TAPE WINDOW),
LSW801
84
DIMMER
86
LED DRIVE
Q903
Z
(XR-C7500RX)
LED
DRIVE
Q901
LCD B+
LSW901 – 908,
LSW910 – 917
RX
7-3. BLOCK DIAGRAM – DISPLAY/KEY CONTROL Section –