Sony HCD-MD515 - Component For Dhcmd515 Service Manual page 67

MAIN BOARD IC400 µPD780016YGF-021-3BA (SYSTEM CONTROLLER)
Pin No. Pin Name I/O
1 to 8 O
9 VPP —
10 X2 O
11 X1 I
12 VDD (B/U) —
13 XT2 O
14 XT1 I
15 RESET
I
16 AUB-IN I
17 AUB-OUT O
18 YBCLK0 O
19 YBCLKI I
20 YBUS BSY I
21 RDS CLK I
22 RDS DATA I
23 VDD (B/U) —
24 AVREF I
25 KEY0 I
26 KEY1 I
27 KEY2 I
28 to 31 —
32 AC CUT I
33 AVSS —
34 O
35 FL-DATA O
36 FL-CLK O
37 FL-CS O
38 AC ON O
39 O
40 VSS —
41 ISIRCS I
42 WSIRCS I
43 LED LAT O
44 LED DATA O
45 LED CLK O
46 427 LAT O
47 427 DATA O
48 427 CLK O
49 4052 INH O
50, 51 O
52 I
53, 54 O
55, 56 N-CH O/D I
57 to 60 SUFFIX I
61 to 64 I
65 EWS IN I
Not used (open)
Ground terminal
Main system clock output terminal (5 MHz)
Main system clock input terminal (5 MHz)
Power supply terminal (+5V) (for back up)
Sub system clock output terminal (32.768 kHz)
Sub system clock input terminal (32.768 kHz)
System reset signal input terminal from the reset signal generator (IC401)
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
Audio bus signal input terminal
Audio bus signal output terminal
Clock signal output terminal to the master controller (IC500) and CD mechanism controller (IC600)
Clock signal input terminal to the master controller (IC500) and CD mechanism controller (IC600)
Busy signal input from the master controller (IC500)
Clock signal input from the RDS decoder (IC361) (AEP, UK, German, North European models only)
Serial data input from the RDS decoder (IC361) (AEP, UK, German, North European models only)
Power supply terminal (+5V) (for back up)
Reference voltage (+5V) input terminal (for A/D converter)
Key input terminal DIMMER key input (S701)
Key input terminal POWER, GROOVE, DBFB key input (S700, 703, 704)
Key input terminal CD1 to 3 6, MD 6 key input (S705 to 707, 780)
Not used (fixed at "L")
Power down detection input terminal "L": power down
Ground terminal (for A/D converter)
Not used (open)
Serial data output to the fluorescent indicator tube driver (IC700)
Clock signal output to the fluorescent indicator tube driver (IC700)
Chip select signal output to the fluorescent indicator tube driver (IC700)
Reset signal output to the fluorescent indicator tube driver (IC700) and LED driver (IC701)
"L": reset
Not used (open)
Ground terminal
Remote commander signal input from the SIRCS/infrared remote control select switch (IC703)
Wired SIRCS signal input from detachable controller (RM-MD515)
Serial data latch pulse signal output to the LED driver (IC701)
Serial data output to the LED driver (IC701)
Clock data output to the LED driver (IC701)
Serial data latch pulse signal output to the M62427FP-A (IC111)
Serial data output to the M62427FP-A (IC111)
Clock signal output to the M62427FP-A (IC111)
INH output to the function switch (IC100)
Not used (open)
Not used (fixed at "L")
Not used (open)
Not used (fixed at "L")
Input terminal for the set model setting *1
Not used (fixed at "L")
Monitor input from external device Not used (fixed at "H")
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Function