9-1
1. System Control Block Diagram
PL12.3ABLS
TO
PO
WER SUPPL
Y
BLOCK DIA
GRAM
RESET
P-ON-H2
CN3701
Q3006
Q3005
P-ON-H1
PR
O
T
ECT3
BA
CKLIGHT
-SW
BA
CKLIGHT
-ADJ
PO
WER SUPPL
Y CB
A
CN501
AL+3.3V
R12
IC3005
(MAIN MICR
O CONTR
OLLER)
DIGIT
AL MAIN CB
A UNIT
XOUT25
XIN25
X3001
25MHz
OSC
H15
H16
PR
O
TECT3
B13
RESET
J15
KEY
-IN1
LIGHT
A15
A13
BA
CKLIGHT
-SW
E2
LED1
D14
P-ON-H2
B16
P-ON-H1
G13
REMO
TE
C14
F3
BA
CKLIGHT
-ADJ
IC3006
(MEMOR
Y)
SCK
SI
SO
T11
P11
R11
P12
6
5
2
1
T12
SCL
SD
A
CS
SCK
SIN
SOUT
CS
TO
VIDEO/A
UDIO
BLOCK DIA
GRAM
TO
VIDEO/A
UDIO
BLOCK DIA
GRAM
A
U
DIO-MUTE
A
U
DIO-MUTE
C1
SCL
SD
A
4
3
TU3901
(TUNER UNIT)
P-ON-H2
77
P-ON-H1
66
KEY
-IN1
46
LIGHT
73
CN3101
REMO
TE
55
LED1
64
RESET
88
PR
O
TECT3
44
BA
CKLIGHT
-SW
22
BA
CKLIGHT
-ADJ
33
Q3501, Q3502
Q3010
LED DRIVE
B
U
FFER
IC3009
RESET
BA
CKLIGHT
-SW
CN4051
KEY SWITCH
IR SENSOR CB
A
FUNCTION CB
A
REMO
TE
SENSOR
RS4051
P-ON+5V
CN4001
D4051
PO
WER
KEY
-IN1
22
CN4052
LIGHT
SENSOR
IC4051
BLOCK DIAGRAMS
[TYPE A]