Mipro ACT-7H Service Manual

Version:1PM044C2
Date:Feb.26.2007

SERVICEMANUAL

ACT-7H

TRANSMITTER

SPECIFICATIONS FOR ACT-7H TRANSMITTER

EQUIPMENT DESCRIPTION

ITEM SPECIFICATIONS

1. FREQUENCY RANGE 620MHz~950MHz

2. FREQUENCY GENERATION Phase Locked Loop (PLL) technique

3. SWITCHING BANDWIDTH 24MHz

4. CHANNEL GRID 25KHz

5. FREQUENCY STABLE

6. MODULATION FM

7. RF OUTPUT POWER (50 OHMS LOAD) <50mW

8. SPURIOUS EMISSION <4nW

9. NOMINAL DEVIATION

10. AUDIO FREQUENCY RANGE 80~18,000Hz

11. DISTORTION
(AT 1KHZ AND NOMINAL DEV)

12. PRE-EMPHASIS 25uS

13. BATTERY

14. CURRENT CONSUMPTION Approx. 80mA

±0.005% 0℃~ +50℃

±40KHz

<0.3%

AA3(1.5V) ×2

15. OPERATION VOLTAGE 1.9V~3V

16. ANTENNA Build in Antenna

17. DIMENSION (M /M)

18. WEIGHTS Approx. 270g

19. ENVIRONMENTAL

50(D)×265(L)

Full SPECS -10 to 60 ℃

ACT7HI01A

ASSEMBLY

BLOCK DIAGRAM

CIRCUIT DIAGRAMS

12

3

Z9

R130

C125

1

R146

3
2

C8

1

541

SW3

BATT1

R147

3

BATT2

1

C126

Q8

R74

1

2

POWER

3

Z4

1 2

R75

C24

R73

Q9

1

C70

23

1

ANT1

C41

L11

C27

L14

Q10

Z3

2

1

1

VC2

+6.2V

C36

L8

C117

C37

R30

Q7

Z5

R29

+5V

12

3

R28

Q6

R27

C62

RF-POWER

C25

C17

C43

C42

R11

R16

R12

C12

1

R7

R145

C114

R2

1

+

L9 L10

1

+

VC1

C38

1 2

L7

R26

C34

L6

C32

C30

L5

R22

C31

L4

R20

R19

C22

U5B

4 5

3

C13

R4

R3

Q5

3

3 1

C4

4

R25

Q4

1 2

3

C26

R21

6 1

R13

C18

C16

Q1

2

1

+

VC4

C64

C33

4

1 2

Q3

3

U5A

2

C9

C78

C2

2

L1

4

Z1

C7

+6.2V

3

GND

Vin

2

Vout

U8

1

1

C60

+3V

C20

C19

R14 R15

R98

2

C1 C3

R18

Q11

R5

L2

C5

Z6

L13

C112

R9

R8

C14

C111

R1

1

C84

C6

AF-MODE

L15

1

1

3

GND

4

Vin

GND

2

Vout

U7

1

1

+5V

R45 R46R44

C50 C51

C49

TP1

3

R67

Clock

C10

C11

3

2

GND

CE

4

VDD
EXT

FB

U11

2

1

5

1

C23

C29

C68

C28

C59

R62

C80

R63

R52

R39

R41

16

AF-MODE

5

U9B

K6

R79R78

R77

2

34

U9A

AF-MUTE

+3V

2

LED2

LED2

Q15

R49

Q17

R51

J3

1

2

3

R100

R101

R53

fin

9

Data

LE

ZC

LD

8

Xfin

10

7

C55

GND

U1

11

6

PS

Do

12

5

C54

Vcc

13

4

Vp

14

3

P

OSCout

15

2

R

OSCin

16

1

R35

C48

+

R34

C61

R33

1

+

C47

+

R32

1

C39

R31

1

C58

+

C69

R43

R42

VC3C53

1

+

X1

C45

+

C65

1

+5V

Q12

AT3

AT2

14

15

16

17

18

POWER
RA1

RA0

VDD

OSC1

23

1

Z10

R10

R52

1

+5V

+3V

OSC2

RA21RA32RA43MCLR4VSS5RB0/INT6RB17RB2

AF-MUTE

C56

RF-POWER

C57

R50

1

3
2
1

U4

R17

4

5

AT1

AT0

10

11

13

RB5

RB4

RB612RB7

RB3

U3

9

8

1

CSCLK

2
3

DAT

4
5
6
7
8

J1