Samsung MM-28, Service Manual

Page: 51 / 63

9-10 Samsung Electronics
Block Diagrams
No.
Port
Name
I/O Descriptions
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
S 18
S 19
S 20
S 21
S 22
S 23
S 24
S 25
S 26
S 27
S 28
S 29
S 30
S 31
P0 0
P0 1
P0 2
P0 3
P0 4
P0 5
P0 6
P0 7
P1 0
P1 1
P1 2
P1 3
P1 4
P1 5
P1 6
P1 7
P3 0
P3 1
P3 2
P3 3
P3 4
P3 5
P3 6
P3 7
Vss
Vdd
P4 0
P4 1
P4 2
P4 3
P4 4
P4 5
P4 6
P4 7
P5 0
P5 1
I
I
O
O
O
O
O
O
I
I
I
I
I
I
O
O
I
I
I
I
I
O
O
O
O
O
OPTION
OPTION
CE1
MCK
MDATA
MLT
CD/MUTE
XRST
SQDT
SQCK
LKFS
FOK
TR-CNT
ISTAT
MOTOR
SOLENOID
HALF
F/REC
HALL
MODE
VSS
VDD
CRO2
R/REC
3S/LED
POWER
TA/MUTE
REC/MUTE
CRO2/OUT
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
PLL IC LC72131 CE
CD CLOCK
µ-COM DATA
µ-COM LATCH
CD MUTE
RESET
CD SUB Q DATA
SUM Q CLOCK
SERVO OK SIGNAL
FOCUS OK
TR-CONTROL
DSP STATE
MOTOR DRIVER OUTPUT
SOLENOID OUTPUT
TAPE HALF
TAPE F/REC
TAPE HALL
TAPE MODE
GROUND
POWER INPUT PORT OF MAIN (5V)
CRO2 INPUT
TAPE R/REC
3S SURROUND LED ACTIVE “H”
POWER ON/OFF ACTIVE “H”
TAPE MUTE ACTIVE “H”
REC MUTE ACTIVE “H”
CRO2 OUTPUT ACTIVE “H”