Sony D-E700 - 6-4. IC Pin Function Description

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6-4. IC PIN FUNCTION DESCRIPTION
• MAIN BOARD IC801 MC68HC05L24-SC440440CFU (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Function
1 VDD
— Power supply terminal (+3V)
2 XSLDON O Sled servo muting control signal output terminal “H”: sled servo muting on
3 XBBSW O
Bass boost selection signal output to the headphone amplifier (IC302)
4OEO
Output enable signal output to the MPC17A51VMEL (IC504) “L” active
5
VCCMNT I Main DC/DC converter voltage (+2.75V) monitor input (A/D input)
6
— O Not used (open)
7 LIGHT
O
Back light control signal output to the liquid crystal display on the switch unit
“H”: back light on Used for the D-E800 and D-E805 models only
8 ESPO
O Control signal output to the ESP (Electronic Shock Protection) circuit Not used (open)
9 DACLT O
Serial data latch pulse signal output to the D/A converter (IC301)
10 C2POEN
O C2PO (error condition monitor) signal control output terminal “L”: stop mode, “H”: searching
11 CHGON
O Charging on output to the MPC18A26 (IC401) “L”: charge on
12 RMDAT
O Serial data output to the liquid crystal display with remote commander
13 VLCD3 O
14 VLCD2
O Power supply output for the liquid crystal display bias
15 VLCD1 O
16 VSS
— Ground terminal
17 VPP
— Power supply terminal (0V)
18
TON O Traverse on/off control signal output to the auto traverse circuit
19
HPPWR O Standby control signal output to the headphone amplifier (IC302)
20
RESET I
System reset signal input from the MPC18A26 (IC401) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
21
OSC1 I Main system clock input terminal (4.195 MHz)
22
OSC2 O Main system clock output terminal (4.195 MHz)
23
SUBQ I Sub-code Q data signal input from the BU9325KS (IC502)
24
CDATA O Serial data output to the D/A converter (IC301) and BU9325KS (IC502)
25
SQCK O
Sub-code Q data reading clock signal output to the D/A converter (IC301) and BU9325KS
(IC502)
26 RW O
Data read/write selection signal output to the BU9325KS (IC502)
“L”: reading mode, “H”: writing mode
27 PCON O Power on/off control signal output to the MPC18A26 (IC401) “L”: power on, “H”: power off
28 AMUTE O Analog muting on/off control signal output terminal “H”: muting on
29 XAVLS I
AVLS (Automatic Volume Limiter System) switch (S301) input terminal
“L”: normal mode, “H”: limit mode
30 XRST O System reset signal output to the external device “L”: reset
31 XHOLD I HOLD switch (S804) input terminal “L”: hold on, “H”: hold off
32 XRCHG I
Rechargeable battery pack detection switch input terminal “L”: rechargeable battery pack in
Not used (open)
33 XLMT I
Sled limit-in detection switch (S901) input terminal
The optical pick-up is inner position when “L”
34 XRSM I RESUME switch (S803) input terminal “L”: resume on, “H”: resume off
35 OPEN I
CD door open/close detection switch (S801) input terminal
The stop status is reset with the falling edge of input signal
36 WP I
Wake-up control signal input terminal
The stop status is reset with the falling edge of input signal
37 XLT O Serial data latch pulse signal output to the D-RAM controller (IC601) (for ESP)
38 XSOE O Serial data output enable signal output terminal (for ESP) Not used (fixed at “H”)