– 30 –
Pin No.
Pin Name
I/O
Function
43
CLV V MON
I
Spindle servo (V) timing signal input from the optical pick-up driver (IC551)
44
CLV W MON
I
Spindle servo (W) timing signal input from the optical pick-up driver (IC551)
45
CLV U CON
O
Spindle servo (U) drive signal output to the optical pick-up driver (IC551)
46
CLV V CON
O
Spindle servo (V) drive signal output to the optical pick-up driver (IC551)
47
CLV W CON
O
Spindle servo (W) drive signal output to the optical pick-up driver (IC551)
48
NC
O
Not used (open)
49
FR TRG
O
Free-run counter capture output terminal
50
VDD
—
Power supply terminal (+3V) (digital system)
51
VPP
—
Test terminal (fixed at “L”)
52
VSS
—
Ground terminal (digital system)
53
SLD 1R CON
O
54
SLD 1F CON
O
55
SLD 2R CON
O
56
SLD 2F CON
O
57
SLD DLY4
O
58
SLD DLY5
O
59
SLD DLY6
O
60
SLD MODE
O
61
SPCK
O
Serial data transfer clock signal output terminal Not used (open)
62
RMC DTCLK
I/O
Two-way data bus for the headphone with remote commander
63 to 65
NC
O
Not used (open)
66
SLD DIR
O
Motor direction signal output to the sled motor control (IC803)
67
SLD VCON
O
Sled servo voltage control signal output to the optical pick-up driver (IC551)
68
SLD PWR UP
O
By-pass transistor control signal output for the sled drive power supply
69
HP MUTE
O
Muting on/off control signal output to the headphone amplifier (IC302) “H”: muting on
70
HP STBY
O
Standby signal output to the headphone amplifier (IC302) “L”: standby
71
RMC SEL
O
TSB/SSB selection signal output terminal Not used (open)
72
NV DO
O
Serial data output to the EEPROM (IC802)
73
NV DI
I
Serial data input from the EEPROM (IC802)
74
NV CLK
O
Serial data transfer clock signal output to the EEPROM (IC802)
75
NV CS1
O
Serial chip select signal output to the EEPROM (IC802)
76
VDD
—
Power supply terminal (+3V) (digital system)
77 to 79
LCD VL2 to
LCD VL0
I
Power supply input for the liquid crystal display bias Not used (fixed at “L”)
80
VSS
—
Ground terminal (digital system)
81 to 87
NC
O
Not used (open)
88 to 96
LCD SEG0 to
LCD SEG8
O
Segment drive signal output of the liquid crystal display Not used (open)
97 to 100
LCD COM0 to
LCD COM3
O
Common drive signal output of the liquid crystal display Not used (open)
Sled motor diver signal output to the sled motor control (IC803)
Summary of Contents for MD Walkman MZ-E25
Page 3: ... 3 SECTION 1 GENERAL This section is extracted from instruction manual ...
Page 4: ... 4 ...
Page 14: ......
Page 15: ......
Page 16: ......
Page 17: ......
Page 19: ... 25 IC Block Diagrams IC301 AK4314 VF E2 IC302 BA3577FS E2 ...
Page 20: ... 26 IC601 µPD63730AGC 9EU IC901 MPC1830VMEL ...
Page 21: ... 27 IC551 MPC17A55FTA ...
