Pioneer KEH-P2800R Panduan Servis - Halaman 35

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Halaman Cetak
Pioneer KEH-P2800R Panduan Servis
Pin No.
Pin Name
73
TESTIN
74
AVDD
75
AVREF0
76
SL
77
CL
78
NL
79
TL
rdslk
80
- Pin Functions (PD6293A)
Pin No.
Pin Name
1–5
SEG4-0
6–8
COM1-3
9
COM0
10
LCDB
11–14
KS3-0
15,16
KDT0,1
17
REM
18
DPDT
NC
19
20
KYDT
21
MODA
22
X0
23
X1
24
VSS
25,26
KDT2,3
27,28
KST5,4
29–55
SEG39-13
56
VCC
57–64
SEG12-5
IC's marked by* are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
*PE5016A
80
1
20
21
I/O
Format
Function and Operation
I
Test program mode input
A/D converter analog power supply (VDD)
(A/D converter standard voltage input)
I
Signal level input
I
Composite level input
I
Noise level input
I
Trigger level input
I
RDS LK signal input
I/O
Function and Operation
O
LCD segment output 4-0
O
Common driver output 1-3
O
Common driver output 0
LCD bias power supply
O
Key strobe output 3-0
I
Key data input 0,1
I
Remote control reception
I
Display data input
Not used
O
Key data output
GND
Crystal oscillator connection pin
Crystal oscillator connection pin
GND
I
Key data input 2,3
O
Key strobe output 5,4
O
LCD segment output 39-13
5V
O
LCD segment output 12-5
61
60
41
40
Format
C
*PD6293A
17
32
KEH-1900R,1930R
Meaning
C MOS
64
49
35