Samsung MM-16 Service Manual page 41

9-4 µ-COM (LC72362N-9265) : UIC1
Pin No.
Name
1 Xin
2 TEST2
3 PG3SI/O
4 PG2/SO0
5 PG1/SCK
6 PG0
7 PF3/SI1
8 PF2/SO1
9 PF1/SCK1
10 PFO
11 PE3/S12
12 PE2/SO2
13 PE1/SCK2
14 PE0
15 PD3
16 PD2
17 PD1
18 PD0
19 PC3
20 PC2
21 PC1
22 PC0
23 PB3
24 PB2
25 PB1
26 PB0
27 PA3
28 PA2
29 PA1
30 PO0
31 Vdd
32 PQ0
33 PP3
34 PP2
35 PP1
36 PP0
37 PO3
38 PO2
39 PO1
40 PO0
Samsung Electronics
Functions
I/O
I
OSC 4.5MHz
I
-
I
CLOSE SW
I
LCD CONTROL DATA
I
LCD CONTROL CLK
I
LCD CONTROL CE
I
OPEN SW
I
VOLUME CONTROL DATA
I
VOLUME CONTROL CLK
I
VOLUME CONTROL CE
O
SENSE
I
SQDT
I
SQCK
O
F OK
O
MLT
O
MDATA
O
MCK
O
CLOSE
O
OPEN
O
MUTE
O
RESET
O
LD ON
O
MOTOR CONTROL
O
FM MODE
O
IF CNT
O
HIGH SPEED MOTOR CTL
I
TAPE PLAY
I
TAPE REC
I
LKFS
I
SOSI
-
I/O
O
O
O
O
FUNCTION LED(TUNER)
O
FUNCTION LED(TAPE)
O
FUNCTION LED(CD)
O
CD CONTROL
O
FUNCTION LED(PHONO or
AUX)
Descriptions
OSC for SYSTEM CLOCK
DOOR CLOSE SENSE PORT
LCD CONTROL SIGNAL
LCD CONTROL SIGNAL
LCD CONTROL SIGNAL
DOOR OPEN SENSE PORT
VOLUME CONTROL SIGNAL
VOLUME CONTROL SIGNAL
VOLUME CONTROL SIGNAL
SERVO FUNCTION SIGNAL
SUBCODE "Q" CHANNEL DATA
CLOCK for "Q" DATA
FOCUS OF SIGNAL
LATCH for MIAN DATA
MAIN DATA
MAIN CLOCK
DOOR CLOSE CONTROL PORT
DOOR OPEN CONTROL PORT
CD MUTE CONTROL PORT
IC(SSP IC) RESET PORT
LASER DIODE ON SIGNAL
MODE KEY ON/OFF MODE : "H","L" CONVERSION
When SD SIGNAL is L MODE : ACTION
HIGH SPEED
CD SYNCHRO RECORDING CONTROL
INDICATE FRAME SYNCHRONIZATION STATUS
SUBCODE SYNCHRONIZATION SIGNAL
FUNCTION IND LED CONTROL PORT(TUNER)
FUNCTION IND LED CONTROL PORT(CD)
CD B+ CONTROL
FUNCTION IND LED CONTROL PORT(PHONO
of AUX)
Block Diagrams
9-9