35
KEH-1900R,1930R
-
Pin Functions (PD6293A)
Pin No.
Pin Name
I/O
Function and Operation
1–5
SEG4-0
O
LCD segment output 4-0
6–8
COM1-3
O
Common driver output 1-3
9
COM0
O
Common driver output 0
10
LCDB
LCD bias power supply
11–14
KS3-0
O
Key strobe output 3-0
15,16
KDT0,1
I
Key data input 0,1
17
REM
I
Remote control reception
18
DPDT
I
Display data input
19
NC
Not used
20
KYDT
O
Key data output
21
MODA
GND
22
X0
Crystal oscillator connection pin
23
X1
Crystal oscillator connection pin
24
VSS
GND
25,26
KDT2,3
I
Key data input 2,3
27,28
KST5,4
O
Key strobe output 5,4
29–55
SEG39-13
O
LCD segment output 39-13
56
VCC
5V
57–64
SEG12-5
O
LCD segment output 12-5
IC's marked by* are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
80
1
20
21
40
41
60
61
*PE5016A
Format
Meaning
C
C MOS
*PD6293A
64
1
16
17
32
33
48
49
Pin No.
Pin Name
I/O
Format
Function and Operation
73
TESTIN
I
Test program mode input
74
AVDD
A/D converter analog power supply (VDD)
75
AVREF0
(A/D converter standard voltage input)
76
SL
I
Signal level input
77
CL
I
Composite level input
78
NL
I
Noise level input
79
TL
I
Trigger level input
80
rdslk
I
RDS LK signal input
Summary of Contents for KEH-1900R
Page 4: ...4 KEH 1900R 1930R 2 2 EXTERIOR ...
Page 7: ...7 KEH 1900R 1930R 2 3 CASSETTE MECHANISM ASSY ...
Page 12: ...12 KEH 1900R 1930R A 1 2 3 4 B C D 1 2 3 4 FM AM TUNER UNIT T A a A a A b B ...
Page 13: ...13 KEH 1900R 1930R 5 6 7 8 A B C D 5 6 7 8 CASSETTE PCB TAPE 24dBs A a A a A b D D ...
Page 16: ...16 KEH 1900R 1930R A 1 2 3 4 B C D 1 2 3 4 3 3 FM AM TUNER UNIT B 3 1 2 FM AM TUNE B ...
Page 17: ...17 KEH 1900R 1930R 5 6 7 8 A B C D 5 6 7 8 B TUNER UNIT A ...
Page 19: ...19 KEH 1900R 1930R 5 6 7 8 A B C D 5 6 7 8 D A 2 1 3 IP BUS CN1 B SIDE A ...
Page 20: ...20 KEH 1900R 1930R A 1 2 3 4 B C D 1 2 3 4 A A TUNER AMP UNIT ...
Page 21: ...21 KEH 1900R 1930R 5 6 7 8 A B C D 5 6 7 8 A SIDE B ...
Page 22: ...22 KEH 1900R 1930R A 1 2 3 4 B C D 1 2 3 4 4 2 FM AM TUNER UNIT B SIDE A B A FM AM TUNER UNIT ...
Page 23: ...23 KEH 1900R 1930R 1 2 3 4 A B C D 1 2 3 4 B SIDE B B FM AM TUNER UNIT ...
Page 36: ...36 KEH 1900R 1930R 7 1 2 DISPLAY CAW1512 SEGMENT COMMON ...