Sony HCD-MD515 - Component For Dhcmd515 Service Manual page 63

• SUB BOARD IC500 µPD78078GF-075-3BA (MASTER CONTROLLER)
Pin No. Pin Name I/O
1 to 4 DATA0 to DATA3 I/O
5 CLK OUT O
6, 7 NC I
8 AC CUT I
9 VSS –
10 X2 O
11 X1 I
12 VDD –
13 XT2 O
14 XT1 I
15 RESET I
16 CLK IN I
17 BUSY O
18 SENSOR1 I
19 to 22 NC I
23 AVDD –
24 AVREF0 I
25 to 28 KEY0 to KEY3 I
29 PARA/UART I
30 3/5 I
31 FL14 I
32 SLAVE I
33 AVSS –
34 LOADING D/A O
35 ELEVATOR D/A O
36 AVREF1 I
37 RXD (UART) I
38 TXD (UART) O
39 NC I
40 VSS –
41 NC I
42 FL DATA O
43 FL CLK O
44 FL CS O
45 FL RST O
46 RXD I
47 TXD O
48 SCK O
49 MASTER BUSY O
50 MEC-BUSY I
51 MECHA RESET O
52 SENSOR2 I
53 NC I
54 LED DIGITAL O
55 LED ANALOG O
56 LED MONO O
Two way data bus to the system controller (IC400) and CD mechanism controller (IC600)
Clock signal output to the system controller (IC400) and CD mechanism controller (IC600)
Not used (fixed at "L")
Power down detect signal input terminal "L": Power down
Ground terminal
Main system clock output terminal (5 MHz)
Main system clock input terminal (5 MHz)
Power supply terminal (+5 V)
Sub system clock output terminal Not used (open)
Sub system clock input terminal Not used (fixed at "L")
System reset signal input from the reset signal generator (IC400) "L": reset
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
Clock signal input from the system controller (IC400) and CD mechanism controller (IC600)
Busy signal output to the system controller (IC400) and CD mechanism controller (IC600)
Detection input from the elevator position sensor (D1)
Not used (fixed at "L")
Power supply terminal (+5 V) (for A/D converter section, analog system)
Reference voltage input terminal (for A/D converter)
Key input terminal Not used (fixed at "H")
Input terminal for SERIAL/UART setting "L": SERIAL, "H": UART (fixed at "L" in this set)
Input terminal for MD changer type setting "L": 3 discs, "H": 5 discs (fixed at "L" in this set)
Input terminal for figure number setting of display
"L": 14 figures, "H": 13 figures (fixed at "L" in this set)
Input terminal for separate/complete type setting of MD section and other sections
"L": complete type, "H": separate type (fixed at "L" in this set)
Ground terminal (for A/D converter)
D/A output terminal for loading motor drive signal Not used (open)
D/A output terminal for elevator motor drive signal Not used (open)
Reference voltage input terminal (+5 V) (for D/A converter)
UART data input terminal Not used (fixed at "L")
UART data output terminal Not used (open)
Not used (fixed at "L")
Ground terminal
Not used (fixed at "L")
Serial data output terminal to display Not used (open)
Clock signal output terminal to display Not used (open)
Chip enable signal output terminal to display Not used (open)
Reset signal output terminal to display Not used (open)
UART data input terminal from the MD mechanism controller (IC316)
UART data output terminal to the MD mechanism controller (IC316)
Clock signal output terminal to the MD mechanism controller (IC316)
Busy signal output terminal to the MD mechanism controller (IC316) "L": busy
Busy signal input terminal from the MD mechanism controller (IC316) "L": busy
Reset signal output terminal to the MD mechanism controller (IC316) "H": reset
Detection input from the elevator position sensor (D2)
Not used (fixed at "L")
LED drive signal output terminal for DIGITAL indication Not used (open)
LED drive signal output terminal for ANALOG indication Not used (open)
LED drive signal output terminal for MONO indication Not used (open)
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Function