Samsung MAX-870 Service Manual page 72

9-4 µ-COM : UIC1
Port
No.
1
P 16
2
17
3
30
4
31
5
32
6
33
7 34
8 35
9 36
10 37
11
70
12
RESET
13
P 74
14
75
15
VSS1
16
CF 1
17
2
18
VDD1
19
P 80
20
81
21
82
22
83
23 84
24 85
25 86
26 87
27
P 71
28
72
29
73
30
S 0
31
1
32
2
33
3
34
4
35
5
36
6
37
7
38
8
39 9
40 S 10
41 11
42 12
43
13
44
14
45
15
46
VDD3
47
S 16
48
17
49
18
50
19
Samsung Electronics
Name I/O
D12 I
JOG I
POWER O
TUNED I/O
A/MUTE O
CE11
O
DI1
I
DO1
O
CLK1
O
CE31
O
PSNS
I
MO/ST O
CF2
GND
XT1
XT2
THS I
AMPS I
EQ IN I
KEY1
I
KEY2
I
JOG
I
KEY3
I
MIC
I
T/SENS
I
SCOR
I
REMO I
G1 O
2 O
3 O
4 O
5 O
6 O
7 O
8 O
9
O
10
O
11
O
12
O
13
O
14
O
15
O
16 O
S1
2
3 O
4 O
Function
TC9173 INPUT
MULTI JOG IN
POWER ON/OFF
TUNED/DSP MUTE
AUDIO MUTE
LC72131(PLL) CE
LC72131 DATA INPUT
LC72131 /TDA7439
LC72131 /TDA7439
M65846 CE
POWER SENSE
FM MONO/STEREO
SUB OSC(CLOCK)
MAIN GND
MAIN OSC
MAIN OSC
MAIN 5V
POWER AMP PROTECT/HPS
AMPS SIGNAL
EQUALIZER INPUT
A/D KEY INPUT 1
A/D KEY INPUT 2
MULTI JOG IN
A/D KEY INPUT 3
MIC ON SNS
CD TRAY SENSE
SCOR INT
REMOCON INPUT
VFD GRID 1
VFD GRID 2
VFD GRID 3
VFD GRID 4
VFD GRID 5
VFD GRID 6
VFD GRID 7
VFD GRID 8
VFD GRID 9
VFD GRID 10
VFD GRID 11
VFD GRID 12
VFD GRID 13
VFD GRID 14
VFD GRID 15
VFD GRID 16
VFD SEG 1
VFD SEG 2
VFD SEG3
VFD SEG4
Block Diagrams
9-13