FUNAI DR-D2831 - Block Diagrams

1-9-1
BLOCK DIAGRAMS
System Control Block Diagram
E68C9BLS
IC601
(MAIN MICRO CONTROLLER)
IC1207
(SUB MICRO CONTROLLER)
REMOTE
SENSOR
RM1201
1G
7G
~
23 17
~
a
h
i
~
7
14
~
GRID
RESET
EV+3.3V
VFD
SEGMENT
FL1203
IC1205
IC1206
AV CBA
DVD MAIN CBA
(VFD DRIVER)
KEY SWITCH KEY SWITCH
CN1205
CN3001
KEY-1
1
1
KEY-2
2
2
SW CBA
16
28
1 2
48 50 49
27
1 2
52
38 33 34
22 19 18 20 29
V7 A2 Y2
H2 U8
8 9
41
12
14 30
7
1 2
11
27MHz X'TAL
X802
CLK 27 IN
CLK 27 OUT
SYS-RESET
SUB-RXD
SUB-TXD
SUB-SCLK
RDY
CN601
SYS-RESET
SUB-RXD
SUB-TXD
SUB-SCLK RDY
CN1204
REG-CONT VIDEO-SW1
AUDIO-MUTE
SUB-SDA
SUB-SCL
RGB THROUGH
RGB THROUGH
OSC2 OSC1
X OUT X IN
RESET
P-DOWN
VCC
FL-DIN
FL-CLK FL-STB
REMOTE
KEY-1 KEY-2
REG-CONT PWSW
VIDEO-SW1
SDA
SCL
AUDIO-MUTE
TO POWER SUPPLY BLOCK DIAGRAM
TO VIDEO INPUT/OUTPUT SELECT BLOCK DIAGRAM
TO AUDIO BLOCK DIAGRAM
8MHz RESONATOR
X1202
32.768KHz X'TAL
X1201
Q1222
Q1224
C1231
(BACKUP CAPACITOR)
DIN
CLK STB
1 FAN+12V 2 GND
CN1202
FAN
N1
SCL SDA
TU1201(TUNER UNIT)
11 12
EV+5V
42 VIDEO-SW2
VIDEO-SW2
43 VIDEO-SW3
VIDEO-SW3
Q1205,Q1206
FAN-AL+12V
55
FAN-CONT2
FAN CONTROL
M1
30 30SYS-RESET 29 29SUB-RXD 27 27SUB-TXD 25 25SUB-SCLK 28 28RDY
IC1501
CN601 CN1204
26 REG-CONT2
EV+2.4VP-ON+1.5V
26 26REG-CONT2
+1.5V REGULATOR
J908
J906
17
TO AUDIO BLOCK DIAGRAM
RGB THROUGH TO VIDEO OUTPUT
SELECT BLOCK DIAGRAM
SDA
SCL
TO VIDEO INPUT SELECT BLOCK DIAGRAM
IC1215
6
3 2
5
(5V<-->3.3V LEVEL CONVERTER)