Sony HCD-NEZ30 Service Manual - Page 35

Sony HCD-NEZ30 - Cd Deck Receiver Component Manual

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Page 35 highlights

HCD-NEZ30 Pin No. 46 47 48 49 50 51 to 53 Pin Name O-POWER I-SUFFIX I-RE-VOL I-MP3-REQ I-MP3-ACK MD2 to MD0 54 RESET 55 O-TU-CE 56 O-TU-CLK 57 O-TU-DI I/O Description O Power relay drive signal output terminal "H": on I Model destination setting terminal I Dial pulse input of the rotary encoder (for VOLUME control) I MP3 data request signal input from the CD DSP I MP3 acknowledge signal input from the CD DSP - Not used 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" O Chip enable signal output to the tuner (FM/AM) O serial data transfer clock signal output to the tuner (FM/AM) 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 35

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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