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Model
CMT-NEZ30 HCD-NEZ30
Pages
51
Size
3.65 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-nez30-hcd-nez30.pdf
Date

Sony CMT-NEZ30 / HCD-NEZ30 Service Manual ▷ View online

33
HCD-NEZ30
Pin No.
Pin Name
I/O
Description
97
TRST
-
Not used
98
VSS
-
Ground terminal
99
VDD
-
Power supply terminal (+1.8V)
100
IOVDD2
-
Power supply terminal (+3.3V)
101
DOUT
O
Digital audio signal output terminal    Not used
102
TEST
I
Test terminal    Normally: fixed at "L"
103
TES1
I
Test terminal    Normally: fixed at "L"
104
IOVSS2
-
Ground terminal
105
PLLVDD
-
Power supply terminal (+1.8V)
106
PLLVSS
-
Ground terminal
107
XVSS
-
Ground terminal
108
XTAO
O
System clock output terminal (16.9344 MHz)
109
XTAI
I
System clock input terminal (16.9344 MHz)
110
XVDD
-
Power supply terminal (+1.8V)
111
AVDD1
-
Power supply terminal (+3.3V)
112
AOUT1
O
L-ch analog audio signal output terminal
113
VREFL
O
L-ch reference voltage output terminal
114
AVSS1
-
Ground terminal
115
AVSS2
-
Ground terminal
116
VREFR
O
R-ch reference voltage output terminal
117
AOUT2
O
R-ch analog audio signal output terminal
118
AVDD1
-
Power supply terminal (+3.3V)
119
IOVDD0
-
Power supply terminal (+3.3V)
120
IOVSS0
-
Ground terminal
34
HCD-NEZ30
PANEL BOARD  IC801 MB90803PF-G-115E1 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
SEG32
O
Segment drive signal output to the liquid crystal display
2
STK-ON
O
Standby control signal output to the power amplifier
3
O-CD-XRST
O
System reset signal output to the CD DSP
4
O-FUNCTION
IC-DATA
O
Serial data output to the electrical volume
5
O-MP3-DATA
O
MP3 serial data output to the CD DSP
6
O-MP3-CLK
O
MP3 serial data transfer clock signal output to the CD DSP
7
I-MP3-DATA
I
MP3 serial data input terminal
8
O-CD-XLAT
O
CD serial data latch pulse signa output to the CD DSP
9
I-RMC (SIRCS)
I
Remote control signal input from the remote control receiver
10
O-XLAT-MP3
O
MP3 serial data latch pulse signal output to the CD DSP
11
O-MP3-SSTB
O
System reset signal output to the motor/coil driver
12
O-REQ-MP3
O
MP3 data request signal output to the CD DSP
13
X0A
I
Sub system clock input terminal (32.768 kHz)
14
X1A
O
Sub system clock output terminal (32.768 kHz)
15
VCC
-
Power supply terminal (+3.2V)
16
VSS
-
Ground terminal
17
O-LED-STBY
O
LED drive signal output terminal for STANDBY indicater
18
O-TC-BIAS
O
Recording bias on/off selection signal output terminal    "H": bias on, "L": bias off
19
O-TC-REC/PB
O
Recording/playback selection signal output terminal    "H": playback mode, "L": recording mode
20
I-TU-SDC
I
Not used
21
I-TC-END SW
I
END switch signal input from the tape mechanism deck
22
O-TC-SOL
O
Trigger plunger on/off control signal output terminal    "H": plunger on
23
O-TC-MOTOR
O
Capstan/reel motor on/off control signal output terminal    "H": motor on
24
I-TU-SD (TUNED)
I
Tuning detection signal input from the tuner (FM/AM)
25
BACK LIGHT
O
LED drive signal output terminal for liquid crystal display back light
26
-
-
Not used
27
I-TU-RDS-DATA
I
RDS serial data input terminal    Not used
28
I-SW_CD-LID
I
CD lid open/close detection switch input terminal    "L": CD lid close
29
I-CD-SENS
I
Internal status (SENSE) signal input from the CD DSP
30
O-CD-CLK
O
CD serial data transfer clock signal output to the CD DSP
31
O-CD-DATA
O
CD serial data output to the CD DSP
32
AVCC
-
Power supply terminal (+3.2V)
33
I-TU-DO
I
Serial data input from the tuner (FM/AM)
34
O-CD-XTACN
O
Oscillator control signal output to the CD DSP
35
AVSS
-
Ground terminal
36
I-P-MONI
I
Power monitor input terminal
37
I-KEY_1
I
Front panel key input terminal (A/D input)
38
I-TC-REC/PLAY
I
Recording-proof claw (forward/reverse) detect switch and cassette in detect switch input terminal
39
O-SYS MUTE
O
Line muting on/off control signal output terminal    Not used
40
O-AMP MUTE
O
Muting on/off control signal output terminal    Not used
41
I-KEY0/WAKE-UP
I
Key interruption processing start signal and front panel key input terminal (A/D input)
42
ACCUT
I
Power down detection signal input terminal    "L": power down, normally : "H"
43
I-CD-SCOR
I
Subcode sync (S0+S1) detection signal input from the CD DSP
44
VSS
-
Ground terminal
45
I-TU-RDS-CLK
I
RDS serial data transfer clock signal input terminal    Not used
Ver. 1.2
35
HCD-NEZ30
Pin No.
Pin Name
I/O
Description
46
O-POWER
O
Power relay drive signal output terminal     "H":  on
47
I-SUFFIX
I
Model destination setting terminal
48
I-RE-VOL
I
Dial pulse input of the rotary encoder (for VOLUME control)
49
I-MP3-REQ
I
MP3 data request signal input from the CD DSP
50
I-MP3-ACK
I
MP3 acknowledge signal input from the CD DSP
51 to 53
MD2 to MD0
-
Not used
54
RESET
I
Reset signal input from the reset switch    "L": reset
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
55
O-TU-CE
O
Chip enable signal output to the tuner (FM/AM)
56
O-TU-CLK
O
serial data transfer clock signal output to the tuner (FM/AM)
57
O-TU-DI
O
Serial data output to the tuner (FM/AM)
58
VLCD
-
Terminal for doubler circuit capacitor connection to develop liquid crystal display drive voltage
59 to 62
COM0 to COM3
O
Common drive signal output to the liquid crystal display
63, 64
SEG0, SEG1
O
Segment drive signal output to the liquid crystal display
65
VCC
-
Power supply terminal (+3.2V)
66
GND
-
Ground terminal
67 to 89
SEG2 to SEG24
O
Segment drive signal output to the liquid crystal display
90
VCC
-
Power supply terminal (+3.2V)
91
VSS
-
Ground terminal
92
XI
I
Main system clock input terminal (4.19 MHz)
93
XO
O
Main system clock output terminal (4.19 MHz)
94 to 100 SEG25 to SEG31
O
Segment drive signal output to the liquid crystal display
36
HCD-NEZ30
SECTION  8
EXPLODED  VIEWS
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
4-247-752-01 FOOT, RUBBER
2
3-087-053-01 +BVTP2.6 (3CR)
3
2-581-397-25 CABINET (US)
3
2-581-397-32 CABINET (CND)
3
2-581-399-51 CABINET (UK, EE, MX, AR)
3
2-581-399-61 CABINET (E, E51)
#1
7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
#2
7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
#4
7-685-871-01 SCREW +BVTT 3X6 (S)
8-1.
CABINET  SECTION
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
The mechanical parts with no reference
number in the exploded views are not supplied.
Accessories are given in the last of the
electrical parts list.
NOTE:
-XX and -X mean standardized parts, so they
may have some difference from the original
one.
Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Parts Color
Cabinet's Color
Les composants identifiés par une
marque  0 sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
The components identified by mark
0 or dotted line with mark 0 are
critical for safety.
Replace only with part number
specified.
Abbreviation
AR
: Argentina model
CND : Canadian model
E51 : Chilean and Peruvian models
1
1
2
2
3
cabinet (top) section
mechanical deck 
section
MAIN board section
not supplied
not supplied
not 
supplied
#1
#2
#1
#2
not supplied
(WIRE300)
#4
Ver. 1.5
EE
: East European model
MX : Mexican model
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