Parts - Pioneer KEH-3930R Service Manual

KEH-3930R,3900R

7.2 PARTS

7.2.1 IC
- Pin Functions (PE5088A)
Pin No. Pin Name
1,2 NC
3 ADPW
4 AVSS
swvdd
5
st
6
7 AVREF1
8 KYDT
9 DPDT
10 SDBW
11 TUNPDI
12 TUNPDO
13 TUNPCK
14 TUNPCE
currq
15
16–18 NC
19 RECIVE
20 PCE2
fm/AM
21
22 VST
23 VCK
24 VDT
25 LCDPW
26 ILMPW
27 LOCH
28 LOCL
29 NC
rimute
30
31 CM
32 NR
33 VSS
34 SC2
35 SC1
36 MSIN
37-39 NC
n/R
40
41 PLAY
loadsw
42
43 POS
44 RES
45 PEE
46 NES
47 RDS57K
48 STBY
49 NC
drst
50
tmute
51
52 ANTPW
53 SD
mute
54
55 SYSPW
56,57 NC
rdslk
58
59 RDT
reset
60
ldet
61
38
I/O Format Function and Operation
Not used
O C A/D converter power supply output
GND
O C Grille power supply control output
I FM stereo input
Connected to 5V line
I Key data input
O C Display data output
I SDBW input
I PLL IC data input
O C PLL IC data output
O C PLL IC clock output
O C PLL IC chip enable output
O C Tuner voltage FIX output
Not used
O C During RDS data reception output
O C PLL IC chip enable output
O C FM/AM power select output
O C Strobe pulse output for electronic volume
O C Clock output for electronic volume
O C Data output for electronic volume
O C LCD back light power supply control output
O C Illumination power supply control output
O C LOCH output
O C LOCL output
Not used
O N RI output port
O C Cassette mechanism capstan motor control output
O N Dolby B NR output
GND
O C Cassette mechanism sub motor control output
O C Cassette mechanism sub motor control output
I Cassette mechanism MS sense input
Not used
O Tape direction forward / reverse output
O C Tape MS filter select output
I Tape loading input
I Cassette mechanism position sense input
I Cassette mechanism reverse end sense input
O C Beep tone output
I Cassette mechanism forward end sense input
I 57kHzBP-OUT sense input
O C Stand-by output
Not used
O C Decoder reset output
O C Tuner mute output
O Antenna power output
I SD input
O C Mute output
O C System power supply control output
Not used
I RDS LK signal input
I RDS data input
I Reset input
I PLL lock sense input