Pioneer DEH-2000R, Service Manual

Page: 60 / 85

60
DEH-2000R,2030R,2020R
7. GENERAL INFORMATION
7.1 PARTS
7.1.1 IC
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Pin Functions (PE5025A)
Pin No. Pin Name I/O Function and Operation
1 DRSYS O Door system select output
2 TELMUTE I Telephone mute input
3 SYSPW O System power supply control output
4 DRELAY O External relay output
5 TESTIN I Test program mode input
6
drst
O RDS reset output
7 ERROR O RDS disapprove of error correction output
8
sk
I RDS SK signal input
9 RECIVE O During RDS data reception output
10 TUNPW O Tuner power control output
11
reset
I Reset input
12 XT2 Not used (open)
13 XT1 Not used (GND)
14 VSS GND
15 X2 Crystal oscillator connection pin
16 X1 Crystal oscillator connection pin
17 REGOFF Connect to VSS
18 REGC Capacitor for regulator connect pin
19 VDD Power supply
20 GRNILM O Green illumination select output
21 NC Not used
22
adpw
O A/D converter power supply output
23,24 NC Not used
25 ASENB O Slave power supply control output
26 ROMDATA O ROM correction data output
27 ROMCLK O ROM correction clock output
28 MUTE O System mute output
29
fm
/AM O RDS decoder power select output
30 LOCL O LOCL output
31 LOCH O LOCH output
32 TUNPCE2 O PLL IC chip enable output
33 VCK O Clock output for electronic volume
34 VST O Strobe pulse output for electronic volume
35 VDT O Data output for electronic volume
36
tmute
O Tuner mute output
37 ROMCS O ROM correction chip select output
38 SD I SD input
39
st
I FM stereo input
40 VSS GND
41 VDD Power supply
42,43 NC Not used
44
rdslk
I RDS LK signal input
45
currq
O Tuner voltage FIX output
46 RDT I RDS demodulation data input
47–50 NC Not used
51
swvdd
O Keyboard unit power supply control output
52
dsens
I Grille detach sense input
53 CONT O CD server driver power control output
54 CD5VON O CD +5V power control output
55 NC Not used
56 VDCONT O CD VD power control output