6-13. Ic Pin Function Description - Sony PMC-D305 Service Manual

6-13. IC PIN FUNCTION DESCRIPTION

CONTROL BOARD IC801 CXP83120A-019Q (SYSTEM CONTROL, LCD DRIVE)
Pin No. Pin Name I/O
1 AC CHK I
2 C-SCOR I
3 RMC I
4 C-XRST O
5 C-XLAT O
6 C-DAT O
7 C-CLK O
8 C-DOOR I
9 328/332 I
10 C-SENC I
11 C-SQCK O
12 C-SQSO I
13 T-BIAS I
14 – –
15 T-REC I
16 T-SOL O
17 T-MODE O
18 T-AMS I
19 T-MCON O
20 P-CON O
21 V-CLK O
22 V-DAT O
23 V-CE O
24 R-ST I
25 R-COUNT I
26 R-DAT O
27 R-CLK O
28 R-CE O
29 9K/10K I
30 T-STAT I
31-34 KEY-0-3 I
35 INIT O
36 SIMUKE I
37 SFC O
38 RST I
39 EXTAL1 I
40 XTAL1 O
41 VSS –
42 XTAL2 O
43 EXTAL2 I
44 AVREF I
45 AVSS –
AC check input
CD-SCOR input
Remote commander input
CD system reset output
CD DSP (IC702) command
CD DSP (IC702) command data output
Clock output for CD DSP (IC702) command
Open/close detection input
328/332 select input (Fixed at "H")
CD-SENS input
Clock output for CD SUBQ
CD SUBQ input
Tape REC BIAS input
Not used (Open)
Tape REC input
Plunger control output
HEAD switching output
AMS sensitivitiy switching
Motor control output "H": Motor on
Power on/off control output
Volume clock output
Volume data output
Electrical volume (IC302) chip enable output
Stereo detection input
Tuner PLL IC count input
Tuner PLL IC data output
Tuner PLL IC clock output
Tuner PLL IC chip enable output
9K/10K select input (Not used)
Tape detection input
Key return signal input
Initial setting output
Destination setting terminal
Shift clock on/off out
Reset input
Clock oscillation input (4.19MHz)
Clock oscillation output (4.19MHz)
Ground (for A/D converter)
Clock oscillation output (Open)
Clock oscillation output (Fixed at "L")
Reference voltage input (for A/D converter)
Ground (for A/D converter)
– 74 –
Function
"L": close "H": open