FUNAI LC5-D20BB - Block Diagrams; System Control Block Diagram

7-1
System Control Block Diagram
A7340BLS
BLOCK DIAGRAMS
FUNCTION CBA
KEY-IN-122
CN51A
KEY-IN-211
IR SENSOR CBA
CLN53
RCV51
D51
RCV-IN33
REMOTE
SENSOR
IC1006 (TV MICRO CONTROLLER)
3
134
5
121 114
CN103B CN103A
RCV-IN23 1 BACKLIGHT-ADJ
22 2
P-ON-H22 2 PROTECT-1420 PROTECT-2321 VOLUME420 INPUT-012 12 INPUT-111 13 S-SW16 8 SCL11 13 SDA10 14
115
KEY-IN-1
RCV-IN
113
BACKLIGH-SW
RESET
P-ON-H
PROTECT-1 PROTECT-2
VOLUME
SDA
SCL
INPUT-0 INPUT-1
S-SW
SCL
SDA
6
116 144
44
143 145
45
TO POWER SUPPLY BLOCK DIAGRAM TO AUDIO BLOCK DIAGRAM
BACKLIGHT-ADJ
P-ON-H
117
BUS-OPEN
PROTECT-1 PROTECT-2
VOLUME
INPUT-0 INPUT-1
S-SW
SCL
SDA
MAIN CBA
LCD MAIN CBA UNIT
4
KEY-IN-2
CN51B
CN53
RESET
Q1301, Q1302
AL+3.3V(D)
CN102B
CN102A
KEY-IN-2123 KEY-IN-1222 BACKLIGHT-SW
23 1
RESET519
CN101B
CN101A
AL+3.3V(D)
10
AFT-IN222
AFT-IN
142
SLOW-SW18 6 AUDIO-MUTE
717
FB-IN19 5
126
SLOW-SW
AUDIO-MUTE
8FB-IN
74
RAPID-SW20 4
RAPID-SW
147 124 141
P-25V-ON21 3
NICAM-RESET
618
P-25V-ON
S/C-JACK-MUTE
NICAM-RESET
S/C-JACK-MUTE
17 7
S/C-JACK-MUTE
AUDIO-MUTE
NICAM-RESET
FB-IN
RAPID-SW
SLOW-SW
S/C-JACK-MUTE
TO IF/VIDEO BLOCK DIAGRAM
AFT-IN
P-25V-ON
BACKLIGHT-ADJ
BACKLIGHT-SW
RESET
PROTECT-1
TO LCD BACKLIGHT BLOCK DIAGRAM
KEY SWITCH KEY SWITCH
51 52
X1000 27MHz
XIN
XOUT
POWER
IC1002 (MEMORY)
SCL
6
SDA
5
7
WP