Samsung MM-18, Руководство по обслуживанию

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9-10 Samsung Electronics
Block Diagrams
9-4 µ-COM (LC72362N-9416) : UIC1
No.
Name Function I/O Descriptions
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Xin
TEST2
PG3SI/O
PG2/SO0
PG1/SCK
PG0
PF3/SI1
PF2/SO1
PF1/SCK1
PFO
PE3/S12
PE2/SO2
PE1/SCK2
PE0
PD3
PD2
PD1
PD0
PC3
PC2
PC1
PC0
PB3
PB2
PB1
PB0
PA3
PA2
PA1
PO0
Vdd
PQ0
PP3
PP2
PP1
PP0
PO3
PO2
PO1
PO0
I
I
I
I
I
I
I
I
I
I
O
I
I
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
I
-
I/O
O
O
O
O
O
O
O
O
OSC 4.5MHz
-
CLOSE SW
LCD CONTROL DATA
LCD CONTROL CLK
LCD CONTROL CE
OPEN SW
VOLUME CONTROL DATA
VOLUME CONTROL CLK
VOLUME CONTROL CE
SENSE
SQDT
SQCK
F OK
MLT
MDATA
MCK
CLOSE
OPEN
MUTE
RESET
-
MOTOR CONTROL
FM MODE
IF CNT
HIGH SPEED MOTOR CTL
TAPE PLAY
TAPE REC
TAPE REC
LKFS SOSI
CD TEST
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 MAIN DATA
MAIN DATA
MAIN CLOCK
DOOR CLOSE CONTROL PORT
DOOR OPEN CONTROL PORT
CD MUTE CONTROL PORT
IC(SSP IC) RESET PORT
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
CD PROGRAM CHECK
mm18(10) 3/23/98 4:17 PM Page 9-10