25
25
HCD-EP315
6-9. Schematic Diagram – CONTROL Section –
• See page 16 for Waveforms.
RESET
SWITCH
5.4
5.6
5.6
0
5.7
5.2
0.1
0
0
0.5
0.8
0.5
5.2
5.1
5.2
5.2
2.4
5.2
2.3
2.6
2.6
2.6
0
5.2
5.2
0
0.1
0
5.4
4.8
0
5.2
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
2.6
5.2
2.6
5.2
0
7.6
8.3
7.4
5.4
0
0.3
5.2
2.2
2.8
2.2
2.5
0
2.6
2.6
5.2
2.4
5.3
0.1
3.4
5.3
5.3
0
0
0.1
0.6
2.6
2.6
2.6
2.6
2.6
5.1
0
0
0
0
0
0
0
5.3
5.6
5.1
270
270
18P
68K / J
39K / J
68P
18P
LIQUID
CRYSTAL
DISPLAY
IC303
REMOTE
SENSOR
LED
SWITCH
LED
SWITCH
(STANDBY)
VOLUME
CONTROL BOARD
BACK LIGHT BOARD
10UH
DISPLAY
m
x
.
X
>
M
IC302
RESET
5V REG.
I /
1
BACK LIGHT
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299