Samsung MM-26 Service Manual page 45

9-4 µ-COM (LC72362N-9265) : UIC1
Pin No. Port
P2 6
1
7
2
P7 0
3
1
4
2
5
6 VSS
7 X1
8 X2
9 VDD
10 XT1
11 XT2
12 RESET
13 P0 0
14 1
2
15
3
16
4
17
5
18
P11 0
19
1
20
2
21
22 3
23 4
24 5
25 6
26 7
27 AVss
28 P1 0
29 1
30 2
3
31
4
32
5
33
6
34
7
35
AVdd
36
AVref
37
38 P10 0
39 1
40 Vss
41 P10 2
42 3
43 P3 0
44 1
45 2
46 3
4
47
5
48
6
49
7
50
Samsung Electronics
Name I/O
ISTAT I SENSE
SQCK O SUB Q DATA INPUT CLOCK
I MAIN SYSTEM CLOCK
I
SUB SYSTEM CLOCK
HOLD I
HOLD INPUT
REMOCON
I REMOCON INPUT
SCOR
I SCOR INTERRUPT
DO 1
O NJU3711,NJU3714 CONTROL DATA OUT
CLR O NJU3711,NJU3714 CLEAR
CE 11 O NJU3714 (OUTPUT EXPANDER) CONTROL CE
CLK 1 O NJU3711, NJU3714 CONTROL CLOCK
CE 12 O NJU3711 (OUTPUT EXPANDER) CONTROL CE
AMPSIN I AMPS SIGNAL IN
MO/ST I TUNER MONO/STEREO INPUT
DEMT O TAPE MUTE
SOL O DECK SOLENOID
MOTOR O
DECK MOTOR CONTROL
R_SW I
TAPE REVERSE RECORDING CHECK
-
A/D CONVERTER GROUND POTENTIAL
KEY 1 I
A/D KEY INPUT 1
KEY 2 I
A/D KEY INPUT 2
KEY 3
I A/D KEY INPUT 3
EQIN
I E- LEVEL INPUT
MODE
I TAPE MECHA CHECK MODE
HALF I TAPE IN CHECK
HALL I TAPE HALL CHECK
F_SW I TAPE FORWARD RECORDING CHECK
- A/D CONVERTER ANALOG POWER SUPPLY
- A/D CONVERTER REFERENCE VOLTAGE INPUT
AMUTE O MAIN AUDIO MUTE
NAR I BGNS NAR INPUT
BD0 O
BGNS CONTROL DATA
CLK 2 O
LC72131, LC75394E CONTROL CLOCK
DO 2 O
LC72131 (TUNER IC) CONTROL DATA
CE 2 O
LC72131 CONTROL CE
BCLK O
BGNS CONTROL CLOCK
TMT
O TUNER MUTE CONTROL
DI 2, DO 3
I/O LC72131 DATA INPUT, LC75394 CONTROL DATA OUTPUT
CE 3
O LC75394E (FUNCTION) CONTROL CE
PSENS O POWER SENSE
CLSW I CD DOOR CLOSE CHECK
Descriptions
Block Diagrams
9-11