Samsung MM-28 Service Manual page 50

9-4 µ-COM (LC866232V-5H11) : UIC1
Port
No.
1 P 5 2
2 PWM1
3 P2 0
4 DI2 1
5
DI2 2
6
DI2 3
7
DI2 4
8
DI2 5
9
DI2 6
10
DI2 7
11
TEST
12 RESET
13 XT1
14 XT2
15 Vss
16 CF1
17 CF2
18 Vdd
19 P8 0
20 P8 1
21
P8 2
22
P8 3
23
P8 4
24
P8 5
25
P8 6
26
P8 7
27
P7 0
28 P7 1
29 P7 2
30 P7 3
31 S 0
32 S 1
33 S 2
34 S 3
35 S 4
36 S 5
37
S 6
38
S 7
39
S 8
40
S 9
41
S 10
42
S 11
43
S 12
44 S 13
45 S 14
46 S 15
47 VdVp
48 Vp
49 S 16
50 S 17
Samsung Electronics
I/O Name
O REC
O MAIN/MUTE
O CON
I AMPS.IN
O CLK1
O SCL
O SDA
O SW2
O SW1
I/O DO
TEST
RESET
XT1
XT2
VSS
CF1
CF2
VDD
I KEY1
I KEY2
I KEY3
I E/LEVEL
I E/LEVEL
I DI
I TUNE
I ST
I HOLD
I CD/SW
I SCOR
I REMO
Descriptions
TAPE RECORD ACTIVE "L"
MAIN AUDIO MUTE ACTIVE "H"
CD POWER SWTICH ACTIVE "H"
TAPE AMPS INPUT
PLL IC LC72131 CLOCK
TDA7430 CLOCK
TDA7430 DATA
SW2 BAND SWITCH ACTIVE "H"
SW1 BAND SWITCH ACTIVE "H"
LC72131 PLL DATA
TEST
RESET PORT
SUB OSC (CLOCK)
SUB OSC (CLOCK)
GROUND
MAIN OSC
MAIN OSC
MAIN POWER INPUT PORT(5V)
A/D KEY INPUT1
A/D KEY INPUT2
A/D KEY INPUT3
ELECTRONIC LEVEL METER L-SIG INPUT
ELECTRONIC LEVEL METER R-SIG INPUT
PLL IC LC72131 DATA IN
LA1836 TUNE
LA1836 ST
POWER ON/OFF SENSE
CD DOOR SWITCH
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 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
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