Parts - Pioneer DEH-1850 Service Manual

1

7.2 PARTS

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7.2.1 IC
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- Pin Functions (PE5518A)
A
Pin No. Pin Name
1 MODEL1
2,3 NC
4 AVSS
5,6 NC
7 AREF1
8 KYDT
9 DPDT
10 NC
11 TUNPDI
12 TUNPDO
13 TUNPCK
B
14 PCL
15 TESTIN
16 BSI
17 BDATA
18 BSCK
19 DORAON
20 NC
swvdd
21
22 ILMPW
23-31 NC
32 DALMON
C
33 VSS
34 BRST
35 BRXEN
36 CDRESET
37 ROMDATA
TE
L 13942296513
38 ROMCLK
39 ROMCS
40 RECEIVE
41,42 NC
43 SYSPW
44-46 NC
47 STRKEY2
D
48 MUTE
49 ANTPW
50 NC
51 VST
52 VDT
53 VCK
54 NC
55 TUNPCE2
56 TUNPCE
RDT
57
58 RDSLK
59 RDS57K
E
60 RESET
61 LDET
62 RCK
asens
63
bsens
64
dsens
65
source
66
www
67 VSS
68 VDD
F
48
1
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2
Function and Operation
I/O
Model select input
I
Not used
GND
Not used
VDD
Display microcomputer data input
I
Display microcomputer communication data output
O
Not used
PLL data input
I
PLL data output
O
PLL clock output
O
Clock adjustment output
O
Test program input
I
Bus serial data input
I
O Bus serial output data
O Bus serial clock output
Not used
Not used
Display microcomputer chip select output
O
Illumination power output
O
Not used
Output for dark current reduction circuit / Stand-by mode : L output
O
GND
Bus reset output
O
Bus RX enable input/output
I/O
CD microcomputer reset signal output
O
ROM collection data output
O
ROM collection clock output
O
O ROM collection chip select output
O RDS decoder receiving output
Not used
System power output
O
Not used
Wired remote control input 2
I
System mute output
O
Auto antenna control output
O
Not used
E.VOL strobe output
O
E.VOL data output
O
E.VOL clock output
O
Not used
O PLL chip enable output 2
O PLL chip enable output
I RDS LK input
RDS clock input
I
RDS 57K input
I
Reset
PLL lock detection input
I
RDS clock input
I
ACC sense input
I
Back up sense input
I
Grille detach sense input
I
Source sense input
I
GND
VDD
x ao
y
. i
DEH-1850/XN/ES
2
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3
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