Sony MDS-NT1 Service Manual ▷ View online
57
MDS-NT1
•
MAIN BOARD IC301 CXD1873R (NET MD SECURITY, DIGITAL SIGNAL PROCESSOR, USB INTERFACE)
Pin No.
Pin Name
I/O
Description
1
VDEA0
—
Power supply terminal (+3.3V) (for DSP)
2
VSEA0
—
Ground terminal (for DSP)
3
PLLSW
I
PLL function on/off control signal input from the system controller “L”: PLL on
4
TEST0
I
Test input terminal Normally fixed at “L”
5
DSPCLK
I
DSP transfer clock signal input terminal (256Fs: 11.2896MHz)
6
VDC0
—
Power supply terminal (+3.3V)
7
DSPIF0
O
Digital audio signal output terminal when recording mode
8
DSPIF1
O
L/R sampling clock signal (44.1 kHz) output terminal
9
VDEA1
—
Power supply terminal (+3.3V) (for DSP)
10
DSPIF2
O
Bit clock signal (2.8224 MHz) output terminal
11
DSPIF3
O
Recording data output terminal
12
VDC1
—
Power supply terminal (+3.3V)
13
VSC0
—
Ground terminal
14
EXTIF0
I/O
Not used
15
EXTIF1
I/O
Not used
16
VDEA2
—
Power supply terminal (+3.3V) (for DSP)
17
VSEA1
—
Ground terminal (for DSP)
18
EXTIF0
I/O
Not used
19
EXTIF1
I/O
Not used
20
VDC2
—
Power supply terminal (+3.3V)
21
VSC1
—
Ground terminal
22
DNKCK
O
Serial ROM clock signal output terminal Not used
23
DNKCS
O
Serial ROM chip select signal output terminal Not used
24
VDEA3
—
Power supply terminal (+3.3V) (for DSP)
25
VSEA2
—
Ground terminal (for DSP)
26
DNKSO
O
Serial ROM data output terminal Not used
27
DNKSI
I
Serial ROM data input terminal Not used
28
DNKST
I
Serial ROM status input terminal Not used
29
VDC3
—
Power supply terminal (+3.3V)
30
VSC2
—
Ground terminal
31
DNKRS
I
Serial ROM reset signal input terminal Not used
32
TEST1
I
Test input terminal Normally fixed at “L”
33
VDEA4
—
Power supply terminal (+3.3V) (for DSP)
34
PLLTHRU
I
Not used
35
USBEN
I
USB enable signal input terminal
36
VDC4
—
Power supply terminal (+3.3V)
37
VSC3
—
Ground terminal
38
USBVSS
—
Ground terminal (for USB)
39
DP
I/O
USB communication input/output
40
DM
I/O
USB communication input/output
41
USBVDD
—
Power supply terminal (+3.3V) (for USB)
42
USBSW
O
USB communication on/off control signal output “H”: USB communication on
43
PLLVDD
—
Power supply terminal (+3.3V) (for USB)
44
PLLVSS
—
Ground terminal (for USB)
45
OSCVDD
—
Power supply terminal (+3.3V) (for OSC)
58
MDS-NT1
Pin No.
Pin Name
I/O
Description
46
EXTAL
I
System clock input terminal (12 MHz)
47
XTAL
O
System clock output terminal (12 MHz)
48
PLLVSS
—
Ground terminal (for OSC)
49
VDEC0
—
Power supply terminal (+3.3V) (for CPU)
50
VSEC0
—
Ground terminal (for CPU)
51
CPUCK
I
Serial data transfer clock input from the system controller
52
CPUSO
O
Serial data output to the system controller
53
CPUSI
I
Serial data input from the system controller
54
VDEC1
—
Power supply terminal (+3.3V) (for CPU)
55
VSEC1
—
Ground terminal (for CPU)
56
CPUXCS
I
Chip select signal input from the system controller
57
CPUINT
O
Interrupt status output to the system controller
58
RESET
I
Reset signal input from the system controller “L”: reset
59
VDEC2
—
Power supply terminal (+3.3V) (for CPU)
60
VSEC2
—
Ground terminal (for CPU)
61
VDC5
—
Power supply terminal (+3.3V)
62
VSC4
—
Ground terminal
63
TEST2
O
Test input terminal Not used
64
TEST3
I
Test input terminal Normally fixed at “L”
59
MDS-NT1
7-1. CASE SECTION
SECTION 7
EXPLODED VIEWS
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Hardware (# mark) list and accessories and
packing materials are given in the last of the
electrical parts list.
electrical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
2
6
front panel section
not supplied
#1
not supplied
#2
#2
case (B) section
MDM-7S2B
#3
7
8
5
5
4
4
3
5
5
• Abbreviation
SP
: Singapore model
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
2
4-951-620-01 SCREW (2.6X8), +BVTP
3
4-237-133-02 CASE (UPPER)
4
4-228-643-21 SCREW (+BVTTWH M3), STEP
5
4-228-689-01 INSULATOR
6
1-823-648-11 WIRE (FLAT TYPE) (7 CORE)
7
1-792-811-21 WIRE (FLAT TYPE) (23 CORE)
8
1-792-812-21 WIRE (FLAT TYPE) (27 CORE)
#1
7-685-870-01 SCREW +BVTT 3X5 (S)
#2
7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
#3
7-682-248-04 SCREW +K 3X8
60
MDS-NT1
7-2. FRONT PANEL SECTION
52
51
53
54
not supplied
55
56
56
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
X-4954-600-3 PANEL ASSY, FRONT
52
4-236-730-01 BUTTON (A)
53
4-228-630-01 SPRING (LID), TENSION COIL
54
4-230-848-21 LID (MD)
55
A-4727-709-A PANEL BOARD, COMPLETE (SP)
55
A-4727-707-A PANEL BOARD, COMPLETE (AEP, UK)
56
4-951-620-01 SCREW (2.6X8), +BVTP
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