Pioneer XC-IS21T Service Manual page 60

XC-IS21T
PDG242B (U-COM ASSY : IC5501)
• System Control IC
•
Pin Function
No. Name I/O Description
1 TCRECF I Mecha RECF SW
2 TCTIN O TAPE Tray load in
3 TCTOUT O TAPE Tray load out
4 LCD POWER O LCD ON/OFF
5 LIGHT O LCD Buck light control
6 CDDSW1 I CD Door detection Input 1
7 CDDSW2 I CD Door detection Input 2
8 STBYLED O Standby LED control
9 CDDSW3 I CD Door detection Input 3
10 CDDSW4 I CD Door detection Input 4
11 CDCOLSE O CD Door close drive output
12 CDOPEN O CD Door open drive output
13 CD LDON I CD laser diode control output
14 CDINSID I CD inside SW input
15 CDSCLK O CD automatick adjustment input clok
16 CDSENS I CD LSI replay (GFS, FOK)
17 CDCLK O CD LSI clock
18 CDLAT O CD LSI latch
19 CDDATA O CD LSI data
20 CDSYSM O CD decoder mute control
21 CDRESET O CD LSI reset
22 CDCONT O CD LSI power control
23 CDMUTE O CD mute control
24 LINE2 MUTE O Line2 mute control
25 LINE1 MUTE O Line1 mute control
26 LINE CONT O Line ATT control
27 VOLCE O E-Volume LSI chip enabled
28 VOLDATA O E-Volume LSI data
29 SCLK O System bus clock
30 RST - Reset
31 EXTAL - Oscillator pulses
32 XTAL - ( 12MHz)
33 Vss - GNDD
34 VOLCLK O E-Volume LSI clock
35 SYSPOW O System power control
36 AVSS - GNDD
37 AVREF - +5V
38 KEY1 O Key input
39 KEY2 O Key input
40 KEY3 O Key input
60
No. Name I/O Description
41 PROTECT O Protect detection input
42 SIMUKE O Model type select input
43 ST/TUNE O TX STREO/TUNED input
44 JOGIN O Multi JOG input
45 - - -
46 SDATA I/O Systembus data
47 SREQ I/O Systembus reqest
48 LCDCLK O LCD micro computer clock
49 LCDCE O LCD micro computer CE
50 LCDDAT O LCD micro computer data
51 CDSQCK O CD SUBQ clock
52 CDSQSO I CD SUBQ data input
53 LCDRST O LCD micro computer reset control
54 TOUCH I Touch sencer input
55 MS I MS Signal input
56 - - -
57 RDSDATA I RDS data input
58 PDSPOW O RDS power control
59 BEEP O beep control
60 ACPULS I AC puls input
61 REMIN I Remote control input
62 CDSCOR I CD SUBQ level input
63 RDSSCLK I RDS clock input
64 TXPOW O TX poer control
65 TXCE O TX LSI chip enabled
66 TXODAT O TX LSI data output
67 TXCLK O TX LSI clock
68 TXIDAT I TX LSI data input
69 TXMUTE O TX mute control
70 SPCONT O Speaker relay control
71 SYSMUTE O System mute control
72 VDD - +5.0V
73 NC - -
74 TCSENS I Reel pulse
75 EXPCE O EXPIC for CE control
76 TCOPEN O Tray open SW
77 TCCLOSE O Tray close SW
78 TCHALF I Mechanism HALF SW
79 TCMODE I Mechanism mode SW
80 TCRECR I Mechanism RECR SW