Samsung MAX-805 Service Manual page 56

9-4 µ-COM : UIC1
Port
No.
1
P5 2
2
MUTE
3
P2 0
4
1
5
2
6
3
7 4
8 5
9 6
10 7
11
TEST
12
RESET
13
XT1
14
XT2
15
Vss
16
CF1
17
CF2
18
Vdd
19
P8 0
20
1
21
2
22
3
23 4
24 5
25 6
26 7
27
P7 0
28
1
29
2
30
3
31
S 0
32
1
33
2
34
3
35
4
36
5
37
6
38
7
39 8
40 9
41 10
42 11
43
12
44
13
45
14
46
15
47
Vdvp
48
Vp
49
S 16
50
S 17
Samsung Electronics
Name I/O
H-OUT O
O
POWER O
TUNER
O
DO1
O
CLK1
O
DIO1
I
CE
O
O
I
I
O
I
I
O
I
KEY1 I
KEY2 I
KEY3 I
KEY4
I
SD
I
PO SENS
I
CD SENS
I
SCOR I
REMO I
G10 O
G9 O
G8 O
G7 O
G6 O
G5 O
G4 O
G3
O
G2
O
G1
O
S22
O
S21
O
S20
O
S19
O
S18 O
S17 O
+5.6V O
-30V O
S16 O
S15 O
Function
TAPE HIGH DUB-OUT ("L" OPEN COLLECTOR)
MUTE
POWER CONTROL
TUNER-CONTROL
TDA7439,LC72131
TDA7439,LC72131
LC72131 DATA INPUT
LC72131(PLL) CE
TEST PIN
RESET PORT
SUB OSC (CLOCK MODE ;32.768KHz)
SUB OSC (CLOCK MODE ;32.768KHz)
GROUND
MAIN OSC INPUT (12MHz)
MAIN OSC OUTPUT (12MHz)
MAIN POWER INPUT PORT (5V)
A/D KEY INPUT 1
A/D KEY INPUT 2
TAPE KEY OPTION
VOLUME UP
TUNET SD
POWER SENS
CD TRAY SENS
SCOR INTERRUPT
REMOCON INPUT
PORT of GRID CONTROL FLT
PORT of GRID CONTROL FLT
PORT of GRID CONTROL FLT
PORT of GRID CONTROL FLT
PORT of GRID CONTROL FLT
PORT of GRID CONTROL FLT
PORT of GRID CONTROL FLT
PORT of GRID CONTROL FLT
PORT of GRID CONTROL FLT
PORT of GRID CONTROL FLT
PORT of SEGMENT CONTROL FLT
PORT of SEGMENT CONTROL FLT
PORT of SEGMENT CONTROL FLT
PORT of SEGMENT CONTROL FLT
PORT of SEGMENT CONTROL FLT
PORT of SEGMENT CONTROL FLT
POWER INPUT CONTROL PORT (5V)
POWER INPUT GRID CONTROL PORT(-30V)
PORT of SEGMENT CONTROL FLT
PORT of SEGMENT CONTROL FLT
Block Diagrams
9-9