20
20
CDC-R304/X104EE/X204/X304/X444
X502
32.768kHz
15
16
13
12
97
76
78
77
27
19
LCD DRIVER
IC901
KEYIN2
CLK
CE
LCD SO
LCD CKO
LCD CE
PANEL+10V
DIMMER
KEYACK
90 COL SW
75 COL SEL
RESET
2 IN
1
OUT
XIN
XOUT
OSCIN
OSCOUT
X501
27MHz
S702
RESET
63
64
62
1
COM1
COM4
LCD901
LIQUID
CRYSTAL
DISPLAY
PANEL
LED921,922
LCD
BACK LIGHT
3
|
50
54
|
51
|
SEG3
SEG50
|
DI
LED901-920
BACK UP+3.3V
(
)
KEY MATRIX
S901-903
95 KEYIN0
KEY MATRIX
S912-920
94 KEYIN1
KEY MATRIX
S904-910
S911 (2/2)
98
SYSTEM CONTROL
IC501 (3/3)
RE
54
LCD CTL
83
SIRCS
ROTARY
ENCODER
S911 (1/2)
RESET
IC602
BACK UP
+3.3V
R304/X204/
X304/X444
X104EE/X304:
US,CND MODEL
DIMMER
CONTROL
Q901
CL
CE
DIMMER
BUCK UP+3.3V
PANEL+3.3V
SWITCH
Q503
1
2 OUT
VCC
REMOTE CONTROL
SIGNAL RECEIVER
IC971
IR
X444
3-4. BLOCK DIAGRAM — DISPLAY SECTION —
3-5. CIRCUIT BOARDS LOCATION
MAIN board
AUX board
KEY board
SENSOR board
SERVO board
tuner unit
(TU1)