40
KEH-P424,P4700,P4750
-
Pin Functions(PD6247A)
Pin No.
Pin Name
I/O
Function and Operation
1
VSS
GND
2
X1
Crystal oscillator connection pin
3
X0
Crystal oscillator connection pin
4
rst
I
System reset
5,6
MODE1,0
GND
7
dim
O
Dimmer select output
8
SO
O
UART output
9
SI
I
UART input
10
REMIN
I
Remote control reception
11
RVER
Not used
12
NC
Not used
13–16
KDT4–1
I
Key data input
17–22
KST6–1
O
Key strobe output
23
VCC
5V
24–73
SEG49–0
O
LCD segment output
74–77
COM3–0
O
Common driver output
78–80
V3–1
LCD bias power supply
20
21
40
41
60
61
80
1
*PD6247A
Summary of Contents for KEH-P424
Page 4: ...4 KEH P424 P4700 P4750 Fig 2 2 2 EXTERIOR ...
Page 9: ...9 KEH P424 P4700 P4750 5 6 7 8 A B C D 5 6 7 8 A b A Fig 4 POWER AMP ...
Page 10: ...10 KEH P424 P4700 P4750 A 1 2 3 4 B C D 1 2 3 4 A B A a A a A b ...
Page 11: ...11 KEH P424 P4700 P4750 5 6 7 8 A B C D 5 6 7 8 C D E F Fig 5 A a A a A b C ...
Page 12: ...12 KEH P424 P4700 P4750 A 1 2 3 4 B C D 1 2 3 4 POWER AMP A a A b A b ...
Page 13: ...13 KEH P424 P4700 P4750 5 6 7 8 A B C D 5 6 7 8 Fig 6 A b A a A b ...
Page 15: ...15 KEH P424 P4700 P4750 5 6 7 8 A B C D 5 6 7 8 B Fig 7 ...
Page 16: ...16 KEH P424 P4700 P4750 A 1 2 3 4 B C D 1 2 3 4 3 3 CASSETTE MECHANISM MODULE A D D ...
Page 17: ...17 KEH P424 P4700 P4750 5 6 7 8 A B C D 5 6 7 8 E F Fig 8 D E F ...
Page 19: ...19 KEH P424 P4700 P4750 5 6 7 8 A B C D 5 6 7 8 B D CN251 CN901 SY Fig 9 SIDE A D B A ...
Page 20: ...20 KEH P424 P4700 P4750 A 1 2 3 4 B C D 1 2 3 4 A A TUNER AMP UNIT ...
Page 21: ...21 KEH P424 P4700 P4750 5 6 7 8 A B C D 5 6 7 8 Fig 10 A SIDE B ...
Page 25: ...25 KEH P424 P4700 P4750 1 2 3 4 A B C D 1 2 3 4 Fig 14 B B SIDE B FM AM TUNER UNIT ...
Page 37: ...37 KEH P424 P4700 P4750 7 GENERAL INFORMATION 7 1 PARTS 7 1 1 IC TDA7384 TDA7386 PM2006A ...
Page 41: ...41 KEH P424 P4700 P4750 7 1 2 DISPLAY CAW1477 Fig 21 COMMON SEGMENT ...
Page 43: ...43 KEH P424 P4700 P4750 7 3 BLOCK DIAGRAM KEH P424 X1M UC Fig 24 D C B E A F ...
Page 50: ......
