Kenwood DV-502 Service Manual page 9
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Also See for DV-502:
- Instruction manual (40 pages) ,
- Service manual (23 pages) ,
- Instruction manual (41 pages)
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2-4 DC Motor Driver : KA8082(ICM21)
Pin No.
Pin Name
1
GND
2
VO1
3
VCTL
4
VIN1
5
VIN2
6
SVCC
7
PVCC
8
VO2
2-5 HEX Inverter (Single Stage) : M74HCU04(IC501)
Pin No.
Pin Name
1,3,5,9
A0 to A5
11,13
2,4,6,8
Q0 to Q5
10,12
TE
L 13942296513
7
GND
14
VCC
2-6 Flash Memory : M29W800AT(IC401)
Pin No.
25, 24~16, 8~1
29,31,33,35
38,40,42,44
30,32,34,36
39,41,43
45
26
28
11
12
15
47
37
27,46
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CIRCUIT DESCRIPTION
I/O
Description
-
Ground
O
Output 1
I
Motor speed control
I
Input 1
I
Input 2
-
Supply voltage (Signal)
-
Supply voltage (Power)
O
Output 2
I/O
Description
I
Data Inputs
O
Data Outputs
-
Ground
-
Positive Supply Voltage
Pin Name
I/O
A0~A18
I
Address Inputs
DQ0~DQ7
I/O
Data Input/Outputs, Command Inputs
DQ8~DQ14
I/O
Data Input/Outputs
DQ15
I/O
Data Input/Outputs or Address input
CE
-
Chip Enable
QE
-
Output Enable
WE
-
Write Enable
RP
-
Reset/Block Temporary Unprotect
RY/BY
O
Ready/Busy/Output
BYTE
-
Byte/Word Organization
VCC
-
Supply Voltage
VSS
-
Ground
x
ao
u163
y
i
DV-502/503/DVF-3050/3550
2 9
8
Internal Block Diagram
GND 1
DRIVER OUT
VO1 2
VCTL 3
LOGIC SWITCH
VIN1 4
Truth Table
Q Q
3
6 7
1 3
1 5
Description
co
.
9 4
2 8
PRE DRIVER
TSD
BIAS
A
Q
L
H
H
L
0 5
8
2 9
9 4
2 8
m
9 9
8 V02
7 PVCC
6 SVCC
5 VIN2
9 9
9
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