GRID4
34
GRID3
35
GRID2
36
GRID1
37
VDD
38
LED3
40
LED2
41
LED1
42
VSS
43
OSC
44
SW1
1
SW2
2
SW3
3
SW4
4
DOUT
5
VSS
7
CLK
8
STB
9
KEY1
10
KEY2
11
KEY3
12
KEY4
13
VDD
14
SEG1/KS1
15
SEG2/KS2
16
SEG4/KS4
18
SEG5/KS5
19
SEG6/KS6
20
SEG7
21
SEG8
22
SEG9
23
SEG10
24
SEG11
25
SEG12/GRID11
26
VEE
27
SEG14/GRID9
29
SEG15/GRID8
30
SEG16/GRID7
31
GRID6
32
GRID5
33
LED4
39
DIN
6
SEG3/KS3
17
SEG13/GRID10
28
U302
UPD16312
F1A
1
F1B
2
6G
4
5G
5
4G
6
3G
7
NC1
8
2G
9
1G
10
NC2
11
P1
12
P2
13
P3
14
P4
15
NC3
16
NC4
17
P5
18
P6
19
P7
20
P8
21
NC5
22
NC6
23
P9
24
P10
25
P11
26
P12
27
NC7
28
P13
29
P14
30
P15
31
P16
32
F2A
34
F2B
35
U301
20U39119BAN
G3
G4
G5
G6
SW302
OPEN/CLOSE
SW303
PLAY
SW307
PAUSE
SW308
STOP
SW309
MENU
SW310
UP
SW311
DOWN
SW313
SKIP+
SW314
SKIP-
SW315
PRO-SCAN
SW316
LEFT
SW317
RIGHT
SW319
SCAN+
SW320
SCAN-
SW322
ENTER
P9
P10
P11
P12
P13
P14
P15
P16
P12
P13
P14
P15
P16
5V
5V
G1
G2
P1
P2
P3
P4
P5
P6
P7
P8
G1
G2
G3
G4
G5
G6
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
D311
POWER
D313
P- SCAN
D314
HDCD
R317
1K
R318
470
R312
470
R301
470
GND
R302
47K
5V
GND
SW3
SW4
D307
IN4148
R304
1K
R306
100R
C304
0.1uF/50V
C305
0.1uF/50V
R305
10K
R307
47K
Q301
C1815
R303
10K
C306
100P
GND
WAKEUP/INTERRUPT CIRCULT
R308
10K
R309
10K
R310
10K
R311
10K
GND
1
2
3
4
5
6
7
8
J303
R313 10K
R314 10K
R315 10K
R316 10K
5V
C307
100PF
C308
100PF
C309
100PF
C310
100PF
GND
GND
1
2
3
U303
GND
IR Receiver
LD1
LD2
LD4
WAKEUP
IR
GND
STB
CLK
DIN
DOUT
GND
1
2
3
4
5
J301
GND
C301
10UF/16V
GND
C302
10UF/50V
GND
+5V
GND
-20V
VF-
VF+
5V
D301
IN4148
D302
IN4148
D303
IN4148
D304
IN4148
D305
IN4148
Falling Edge Interrupt Signal
VACUUM FLUORESCENT DISPLAY
DOUT
DIN
CLK
STB
C303
0.1uF/50V
GND
GND
C311
220UF/10v
1
2
3
4
5
6
J304
R321 NA 10K
R322
10K
GND
KS1
KS2
KS3
KS4
KS5
KEY1
KEY2
KEY3
KEY4
IR
+5V
NA
SW
GND
TRG
FROM PSU
FROM DECODE
FROM AUD
R323
47R
HS0038B
KEYBOARD AND DISPLAY
