FUNAI A8C70EP - Block Diagrams

7-1
System Control Block Diagram
A8C70BLS
BLOCK DIAGRAMS
LED1
KEY SWITCH
IC4700
(SUB MICRO CONTROLLER)
IC4513 (MAIN MICRO CONTROLLER)
3
XOUT
XIN
X3101
4MHz OSC
DIGITAL MAIN CBA UNIT
IR SENSOR CBAFUNCTION CBAMAIN CBA
CN301
REMOTE
SENSOR
RS301
+3.3V
D302 POWER
STANDBY D303
LED144
CN202
REMOTE22 P-ON-H155
CN104ACN3601
REMOTE22 4
10 12 11
PROTECT3 BACKLIGHT-ADJ BACKLIGHT-SW
CN105A
REMOTE
11
12
RXD
15
6 8
CLKOUT CLKIN
X3301
25MHz OSC
U25 U26
P-ON-H1
TO INVERTER BLOCK DIAGRAM (CL404)
BACKLIGHT-ADJ
AC24
BACKLIGHT-SW
A2
TXD1
P22
TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM
TO POWER SUPPLY BLOCK DIAGRAM
PROTECT1
22
P-ON-H1
14
P-ON-H2
13
P-ON-H2
P-ON-H1125
TXD
16
RXD1
N22
AMP-MUTE-SUB
18
REMOTE
R22
RESET-MAIN
5
RESET-MAIN
TO AUDIO-2 BLOCK DIAGRAM
V24
LED144 REMOTE22 P-ON-H155
CN201
KEY-IN166
CN106
LED118 8
CN101A
P-ON-H213 13
CN3701
KEY-IN125 1
KEY-IN1
24
VCOM-PWM
21
VCOM-PWM
AA2
AMP-MUTE-MAIN
AMP-MUTE
SCL
SDA
19 20
IC3102 (MEMORY)
5 6
SDA SCL
PROTECT2
RESET
23
PROTECT121 5
CN101ACN3701
PROTECT220 6 RESET17 9
4
PROTECT3
PROTECT319 7
IC3706 (MEMORY)
SPI-CLK SPI-DO SPI-DI SPI-CS
SCK
SI
SO
CS
Y25 Y24
W25 W24
6 5 2 1
AF12
AE12
SCL SDA
TO AUDIO-1 BLOCK DIAGRAM
SCL SDA NICAM-RESET
B11
NICAM-RESET
SCART-MUTE
B2
SCART-MUTE
SCL
SDA
TO VIDEO BLOCK DIAGRAM TO VIDEO BLOCK DIAGRAM
24
2
23
3
BACKLIGHT-ADJ BACKLIGHT-SW
CN104ACN3601
PROTECT1 PROTECT2
RESET
TO POWER SUPPLY BLOCK DIAGRAM
INPUT0
A11
INPUT0
INPUT1
E12
INPUT1
INPUT2
D12
INPUT2
D1
SLOW-SW1
E1
FBIN1
C12
S-SW
SLOW-SW1 FBIN1
S-SW
INPUT2
Q3823
Q3819
Q3822
MAIN CBA