Service manual
– 50 –
MD-MT180
56 EXPORT0 LEDON1 Output LED ON/OFF 'H':ON"L":OFF
57 EXPORT1 LDCNT1 Output Recording head raising-lowering control output 1 See the separate table *3.
58 EXPORT2 LDCNT2 Output Recording head raising-lowering control output 2 (Open)
59 EXPORT3 EMPH1 Output Audio emphasis control output 1 See the separate table *2.
78 EXPORT4 HDON Output Not used. 'H': Record electric current
79 EXPORT5 OPTCNT Output Optical digital input circuit control 'H': Circuit operation ON
80 EXPORT6 DAPON Output D/A converter operation control output 'H': Operation ON
81 EXPORT7 ADPON Output A/D converter operation control output 'H': Operation ON
Pin No. Function
Port Name
Terminal Name
Input/Output
Remarks
H H Normal mode
H L No adjustment mode
L H Test mode
L L (Settings prohibited)
TEST1
Details
*1: List of TEST port settings
H H fs=32K: 'ON'
H L fs=48K: 'ON'
L H OFF
L L fs=44.1K: 'ON'
EMPH1 EMPH0
Details
*2: List of EMPH port settings
H H Brake
H L Drive UP
L H Drive DOWN
L L Output OFF
LDCNT1 LDCNT0
Details
*3: List of LDCNT port settings
TEST0
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
12345678910111213141516171819202122232425
75747372717069686766656463626160595857565554535251
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
TOTMON
TEMON
HDON
OPTCNT
DAPON
ADPON
FOK
SENSE
COUT
MCCK
DINTX
VDD2
DGND
RSTX
SYSD0
SYSD1
SYSD2
SYSD3
SYSD4
SYSD5
SYSD6
SYSD7
SYWRX
SYRDX
SYRS
EFMO
PLCK
ACRCER
RAA11
RAD0
RAD1
RAWEX
RARASX
RAA9
RAD3
RAD2
RACASX
DGND
RAOEX
RAA8
RAA7
RAA6
RAA5
RAA4
VDD2
RAA10
RAA0
RAA1
RAA2
RAA3
FEMON
DADATA
ADDATA
DFCK
BCLK
LRCK
DGND
PLLBVC
DOUT
DIN
X1O
X1I
DGND
VDD1
VPO
VXI
EMPH1
LDCNT2
LDCNT1
LEDON1
DILOCK
TEST1
TEST0
TCRS
X700KO
LR378161
EFMMON
AVCC
EFMI
AGND
AVCC2
VREF
WBI
TCG
AIN
BIN
EIN
FIN
VBAT
VDD1
DGND
TEST2
X176KO
FODRF
FODRR
TRDRF
TRDRR
SLDRF
SLDRR
SPDRF
SPDRR
IC201 VHiLR378161-1 :Endec/Servo/Atrac (LR378161)
System LSI expansion output port (LR378161)
IC201 VHiLR378161-1 :Endec/Servo/Atrac (LR378161)