Pioneer XR-A670 Service Manual page 71

PDC057A (DISPLAY ASSY : IC5501)
• System Control Microcomputer
•
Pin Function
No. Pin Name I/O
1 CD RESET O Reset output for CD LSI
2 CD SE CLK O CD SENS readout clock
3 CD SENS I CD SENS data input
4 CD LAT O Strobe output for CD
5 CD DCLK O CD DATA readout clock
6 CD DATA O CD DATA output
7 PBASS LED
8 ZOOM SR. LED
O LED Control
9 EQ LED
10 PRESET LED
11 AC I AC pulse input power supply
12 XRESET I CPU reset input
13 REEL1 I Pulse input for deck 2 reel
14 REEL2 I Pulse input for deck 1 reel
15 VSS – GND
16 CF1 I
17 CF2 O
18 VDD – Power supply
19 KEY1 I Front key input 1
20 KEY2 I Front key input 2
21 KEY3 I Front key input 3
22 MS I DECK MS signal input
23 ST/TUNE I Tuner tuned (STEREO) detection
24 SPE-IN I Spectrum analyzer signal input
25 TIMER LED O LED control
26 CD MUTE O CD mute control
Outputs high signal when either subcode
27 SCOR I
sync S0 or S1 is detected
28 RDS CLK I Clock input for RDS IC (BU1923)
29 REMOCON I Remote control signal input
30 G01
31 G02
32 G03
33 G04
34 G05
35 G06
36 G07
37 G08
O FL display control grid
38 G09
39 G10
40 G11
41 G12
42 G13
43 G14
44 G15
45 G16
46 VDD – Power supply
47 D5597/S01
48 D5596/S02
I/O FL display control segment
49 D5595/S03
50 D5594/S04
Function No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100 SYS CLK
XR-A670, XR-A370
Pin Name I/O
VFDP –
D5593/S05
D5592/S06 I/O
D5591/S07
S08 O
CLAMP/S09
OPEN/S10
INSIDE/S11
DISC123/S12
ARR/S13
ARF/S14 FL display control segment
I/O
MODE1/S15
MODE2/S16
HALF1/S17
HALF2/S18
CrO2_1/S19
CrO2_2/S20
S21 O
S22 O
S23 O
RDS DATA I/O Data input for RDS
VDD – Power supply
SOL2 O Deck 1 solenoid control
SOL1 O Deck 2 solenoid control
MOTOR O Deck motor control
CD LOAD IN O CD load in control
CD LOAD OUT O CD load out control
DISC3 O DISC 3 LED control
DISC2 O DISC 2 LED control
DISC1 O DISC 1 LED control
VOLJOG1
I Pulse input for volume JOG
VOLJOG2
MORP JOG1
I Pulse input for sound morphing JOG
MORP JOG2
PLL CE O TUNER PLL IC strobe output
EVOL CE O Main volume control IC strobe output
POWER O Main power control
LINE MUTE O Line mute control
VSS – GND
VDD – Power supply
EXP CLK O Clock for EXP IC (BU4094BCF)
EXP DATA O Data for EXP IC (BU4094BCF)
EXP CE O Strobe for EXP IC (BU4094BCF)
SCAN ON O Key scan input control
CD SHUT O ON/OFF control for CD
SQSO I Sub Q data output
SQCK O SQSO readout clock
SYSDATA O Serial data output
TXDATA I Serial data input
O Serial clock output
Function
71