background image

J2-12

10mv per degree C.

(0.2VDC at 2000W)

SWR CAL

DENOM

NUMER

POWER CAL

SWR clamp @ <200W

(1.5:1)

49.9K FOR 2:1

100uA/A

.5V/A

.5V/A

100uA/A

100uA/A

100uA/A

100uA/A

100uA/A

100uA/A

100uA/A

 PA LIMIT

INPUT FWD

INPUT REV

OUTPUT FWD

OUTPUT REV

(0.1V at 1.00)

(.35VDC at 35 degrees)
(.48V at 48 volts)
(.5VDC at 50 amps)

.05V/A

.5V/A

.5V/A

.5V/A

.5V/A

.5V/A

.5V/A

1N4148'S

*

*

POWER RANGE

U1,3,5,6,8,24,25

U2,4,26,29

U27

U28

4

11

8

4

1,8

4,5

7

4

(40mv/A)

(DETERMINED BY DIR. CPLR. SENSITIVITY.)

 DIFFERENTIAL PA ERROR CURRENT SENSE.

R158 = OPEN: HIGHEST-LOWEST = 2.4 AMP.

R158 = 240K: HIGHEST-LOWEST = 1.2 AMP.

(LOWEST PAI)

(HIGHEST PAI)

1

2

3

4

72

71

69

70

Metering Card Edge Connector

Viewed from front panel

NO PIN
NO PIN

NO PIN
NO PIN

NO PIN
NO PIN

NO PIN
NO PIN

(SPARE)

(SPARE)

(SPARE)

UNITS

TENS

100's

SWR

ALC

19.99

19.99

199.9

199.9

F.S.

DECIMAL POINT

199.9

POWER SET

J2-12

(0.2VDC at 2000W)

PA1

PA2

PA3

PA4

PA6

PA7

19.99

19.99

19.99

19.99

19.99

19.99

19.99

19.99

19.99

SWR
ALC

PA DC VOLTS
PA DC AMPS

19.99
19.99

199.9
199.9

199.9

PA TEMPERATURE

19.99

PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8

19.99
19.99
19.99
19.99
19.99
19.99
19.99
19.99

(0.1V at 1.00)

(0.6v at 6v)

(.35VDC at 35 degrees)
(.48V at 48 volts)
(.5VDC at 50 amps)

(1.999V reads "1999" FULL SCALE)

POWER OUT

PA TEMP

PA VOLTS

PA AMPS

19.99

PA8

19.99

KW OUT

DRIVE

19.99

DRIVE

U16-23

U7,14

U13

7

4

1

26

14

7

16

U15

8

16

7,8

MSB

LSB

U11,12

U9,10

16

7

8

LOCAL ONLY

.5V PER AMP
.5V PER AMP
.5V PER AMP
.5V PER AMP
.5V PER AMP
.5V PER AMP
.5V PER AMP
.5V PER AMP

RF output power is limited by the lower of:

Front panel OUTPUT control.

Remote RAISE/LOWER step circuit, or

Remote PWR CTRL analog input, or

ALL GRN

NOTES :

_______

_______

1.  ALL RESISTORS ARE IN OHMS,

2.  ALL CAPACITORS ARE IN

PA5

THESE DRAWINGS AND SPECIFICATIONS ARE THE

SHALL NOT BE REPRODUCED, COPIED, OR USED
AS THE BASIS FOR THE MANUFACTURE OR SALE
OF APPARATUS OR DEVICES WITHOUT PERMISSION.

PROPERTY OF CROWN INTERNATIONAL, INC. AND

SCALE

NONE

DWG. NO.

102120

MFM2000

SCH, FM1K CONTROL & METERING

PROJ NO.

SHEET 1 OF 1

F

REV

TITLE:

SIZE

D

UNCONTROLLED

UNLESS OTHERWISE MARKED IN RED INK BY CM AS
A CONTROLLED COPY, COPIES OF THESE
DOCUMENTS INCLUDING ASSOCIATED ELECTRONIC
REPRODUCTIONS ARE FOR REFERENCE ONLY.

1/4W, 5% TOL.

MICROFARADS.

UNLESS OTHERWISE

SPECIFIED:

FOLDBACK
CAL.

RF FWD

MEM BATT

REM PWR CTRL

REM RF POWER

REM /PWR RAISE

RF REV

REM /PWR LOWER

DP10
DP100

REM SWR

DRIVE REV

DRIVE FWD

REM RF DRIVE

REM ALC

DPM REF

ALC

PATEMP 1-2

FAULT SUM

+50V

PATEMP 3-4

REM PAV

PAV SENSE

SWR LAMP

REM PA TEMP

PATEMP 5-6

DRIVE LAMP

PATEMP 7-8

+12V IN

+12V

SH HI 1

PATEMP LAMP

SH LO 1

PS /POWER ON

RF FWD
RF REV

PADC LAMP

ALC

DRIVE FWD

-12V IN

-12V

-12V IN

DRIVE REV

SH HI 2

GND

REM RF POWER

+12V IN

REM SWR

REM PA TEMP

REM PAV

REM ALC

REM PAIT

FAULT SUM

REM PAI1

SH LO 2

REM /PWR ON

REM PAI2

REM PWR CTRL

REM PAI3

DP10

REM /PWR RAISE

REM PAI4

REM /PWR LOWER

REM PAI5

DP100

REM PAI6

REM RF DRIVE

REM PAI7

SH HI 3

GND

REM PAI8

GND

GND

GND

GND

SH LO 3

REM PAIT

GND

SH LO 1
SH HI 1

PATEMP 7-8

SH LO 2

PATEMP 5-6

SH HI 2

SH HI 4

PATEMP 1-2

SH LO 3

TEMP V+

SH HI 3

PATEMP 3-4

SH LO 4

SH HI 4

SH LO 5

SH HI 5

SH LO 6

SH LO 4

SH HI 6

SH LO 7

SH HI 7

SH LO 8

SH HI 8

+50V

PAV SENSE

IN'LK 1

MEM BATT

IN'LK 2

SH HI 5

SH LO 5

REM PAI1
REM PAI2
REM PAI3
REM PAI4
REM PAI5

SH HI 6

REM PAI6
REM PAI7
REM PAI8

SH LO 6

IN'LK 2

PS /POWER ON

IN'LK 1

REM /PWR ON

SH HI 7

+12V IN

TEMP V+

SH LO 7

GND

SH HI 8

SH LO 8

DPM IN

+5V

+12V

+12V

+12V

+12V

PA+5V

+12V

+12v

+5.00

+12V

+5.00

+12V

+12V

+12V

+12V

PA+5V

PA+5V

PA+5V

+5V

+5V

+5V

+12V

PAV+6

+5.00

+5.00

+12V

+12V

+12V

-12V

-12V

-12V

-12V

-12V

-12V

PA-5V

-12V

-5V

-12V

-12V

-12V

-12V

-12V

-12V

-12V

PA-5V

PA-5V

PA-5V

PAV-6

+5.00

-12V

-5V

-12V

+12V

+12V

+5V

-5V

-12V

+5V

PA-5V

PA+5V

-5V

+5.00

+5.00

+5V

-5V

VCC

VDD

-12V

+5V

VEE

+5V

+5V

+5V

VSS

+5V

+5V

+5V

D26

1N4148

C33

100PF

DZ1
6.2V

DZ2
6.2V

D24

1N5822

D25

1N5822

U28

REF02

IN

2

TEMP

3

TRIM

5

OUT

6

D21

C65

100UF/63V

C98

.01

C101
1nF

U14C

74HC132

9

10

8

U7B

74HC14

3

4

U7C

74HC14

5

6

U7A

74HC14

1

2

U14D

74HC132

12

13

11

DL20

DL19

DL18

DL17

DL16

DL15

DL14

DL13

DL12

DL11

DL10

DL9

DL8

DL7

DL6

R201

OPEN

R202

OPEN

R203

OPEN

R204

OPEN

R205

100 1%

R206

100 1%

R207

100 1%

R208

100 1%

R209

OPEN

R210

OPEN

R216

100 1%

R215

100 1%

R214

100 1%

R213

100 1%

R212

OPEN

R211

OPEN

R144

100 1%

R143

100 1%

R140

100 1%

R139

100 1%

R137

OPEN

R136

OPEN

R134

OPEN

R133

OPEN

R131

100 1%

R130

100 1%

R128

100 1%

R127

100 1%

R125

OPEN

R124

OPEN

R122

OPEN

R121

OPEN

U16A

OPEN

2

3

1

8

4

U16B
OPEN

6

5

7

U17A

MC33282

2

3

1

8

4

U17B
MC33282

6

5

7

U18A

OPEN

2

3

1

8

4

U18B

OPEN

6

5

7

U19A

MC33282

2

3

1

8

4

U19B

MC33282

6

5

7

C63
.01

Q13

2N5087

Q12

2N5087

Q11

OPEN

Q10

OPEN

Q9

2N5087

Q8

2N5087

Q7

OPEN

Q6

OPEN

R145

4.99K

R141

4.99K

R138
OPEN

R135
OPEN

R132

4.99K

R129

4.99K

R126
OPEN

R123

OPEN

U25D

TL074

+

-

13

12

14

U25C

TL074

+

-

9

10

8

U25B

TL074

+

-

6

5

7

U25A

TL074

+

-

2

3

1

4

11

U24D

TL074

+

-

13

12

14

U24C

TL074

+

-

9

10

8

U24A

TL074

+

-

2

3

1

4

11

D44

OPEN

D45

OPEN

D46

D47

D48

OPEN

D49

OPEN

D50

D51

D27

OPEN

D28

OPEN

D30

D31

OPEN

D29

D32

OPEN

D33

D34

R156
4.3K

R157

10K

R158
OPEN

U8D

TL074

+

-

13

12

14

U26A

MC33282

2

3

1

8

4

U26B

MC33282

6

5

7

R146
1.0K

R148

10K 1%

C22

100PF

R147

20K

1%

R168

100

R167

OPEN

R166

OPEN

R165

100

R164

100

R163

OPEN

R162

OPEN

R169

100

R154
220K

C19
1nF

U5D

TL074

+

-

13

12

14

U5C

TL074

+

-

9

10

8

C20
1nF

R49
10K

R47

OPEN

U5B

TL074

+

-

6

5

7

D9

1N4148

D8

OPEN

D7

1N4148

R45
10K

D6

OPEN

R43

OPEN

C14
1nF

U5A

TL074

+

-

2

3

1

4

11

C16
1nF

R42

OPEN

R112

220K

C13
OPEN

R113
220K

R44

1K

C15
1nF

C18
1nF

R153
220K

R46

OPEN

R48

1K

U3D

TL074

+

-

13

12

14

C70
1nF

R53
100

R52

100K 1%

R108
220K

C1
1nF

C2

1nF

R5

62K

R3

100K

U1A

TL074

+

-

2

3

1

4

11

R4

10k

R1
1K

R12

1K

R109
220K

C4
1nF

U1B

TL074

+

-

6

5

7

C5

1nF

R15
510

R14
100K

U1C

TL074

+

-

9

10

8

C10
1nF

R37

100K

C9

1nF

R110
220K

R36

1K

R39

1K

R111
220K

C11
1nF

U1D

TL074

+

-

13

12

14

C12
1nF

R41

100K

R8

49.9K

U2B

MC33282

6

5

7

D10

1N4148

R7

49.9K

R6

3.3K

D11

1N4148

C3

.01

U2A

MC33282

2

3

1

8

4

R16
10K

U3A

TL074

+

-

2

3

1

4

11

R19
10K

R17

10K

R23
10K

R21

1K

U4A

MC33282

2

3

1

8

4

C6
.01

R20

3.3K

R28

49.9K

R25
10K

R22
10K

R24
10K

Q14

2N5210

R26

100K

D5

1N4148

Q4

LM394

1

1

2

2

3

3

4

4

8

8

7

7

6

6

5

5

R31
12K

U4B

MC33282

6

5

7

C7

.01

R27

3.3K

U3C

TL074

+

-

9

10

8

U3B

TL074

+

-

6

5

7

C8

1nF

R33

10.0K

R35
100

R29
10K

R30

5.1K

R9

10.0K

R11
100

C34
1nF

R174

10K

SW3

RAISE

R176

10K

R173

51K

U29A

74HC132

1

2

3

U29D

74HC132

12

13

11

U29C

74HC132

9

10

8

U29B

74HC132

4

5

6

R175

51K

C95
1UF

SW4

LOWER

R178
3.3K

D37

1N4148

D38

1N4148

R177
240K

R61

ZERO

R180
4.99K

D53
1N4148

D52

1N4148

R179

10K

R59

1K

D40

1N4004

D39

1N4004

R181

1K

R183

4.99K

U33B

TL074

+

-

6

5

7

D41

1N4148

C100

1nF

U33C

TL074

+

-

9

10

8

U33A

TL074

+

-

2

3

1

4

11

R186
3.3K

D43

1N4148

C35
0.1

U9

74HC4051

X0

13

X1

14

X2

15

X3

12

X4

1

X5

5

X6

2

X7

4

INH

6

A

11

B

10

C

9

X

3

D13

1N4148

R67
51K

R70

100K

R69
10K

C23
0.1

U8B

TL074

+

-

6

5

7

R68

200K

R72
100

R71
100

R73
10.0K

U8A

TL074

+

-

2

3

1

4

11

U6B

TL074

+

-

6

5

7

R75
100K

R77

1M

C26
0.1

C25
0.1

R65
20K

R78

1K

R66
1M

R79

1K

R81
OPEN

U6C

TL074

+

-

9

10

8

R82

7.5K

R83

120K

U6A

TL074

+

-

2

3

1

4

11

C27
1nF

R85

1M

R149
100K

R86

5.1K

U6D

TL074

+

-

13

12

14

R18

200K

D35

1N4148

D36

6.2V

C28
.01

R88

OPEN

R97
10K

U7E

74HC14

11

10

DL1
RED

D14

1N4148

D15

1N4148

D16

1N4148

R89

120K

R91

120K

R93

120K

R94
100K

R92

100K

R90

100K

DL2
RED

D19

1N4148

D20

1N4148

D18

1N4148

U7D

74HC14

9

8

R96

100K

R95
56K

D17

1N4148

R98

220K

DL4
RED

DL3
RED

U7F

74HC14

13

12

R99
510

R161

56K

C37
.01

R116
100K

R114

10K

SW2

DOWN

U14A

74HC132

1

2

3

C38
.01

R117
100K

U14B

74HC132

4

5

6

R115
510K

R118
3.3K

SW1

UP

D23

1N4148

D22

1N4148

C32
0.1

C30
0.1

R101
470K

C31
0.1

R104

10.0K

R170
510

R171
510

RFC3
33UH

RFC4
33UH

VR1

7805

IN

2

C

1

OUT

3

VR2

79L05

IN

2

C

1

OUT

3

U11

74HC4051

X0

13

X1

14

X2

15

X3

12

X4

1

X5

5

X6

2

X7

4

INH

6

A

11

B

10

C

9

X

3

U12

74HC4051

X0

13

X1

14

X2

15

X3

12

X4

1

X5

5

X6

2

X7

4

INH

6

A

11

B

10

C

9

X

3

RFC1
33UH

R152

10K

R56

10.0K

U8C

TL074

+

-

9

10

8

R58
100

R106

10K

C71
1nF

R54

49.9K

R76

24.9K

D12

1N4148

Q2

LM394

1

1

2

2

3

3

4

4

8

8

7

7

6

6

5

5

D1

1N6263

D4

1N6263

R151

100

R160
4.3K

C99
1nF

D42

1N4148

RFC2

470UH

SW5

Switch

1
2
3

PL1

HDR 72

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

R142

100

R200
100

R159
100K

R63
510

R62

1K

R182

1K

C103

1nF

R102
100K

R100
100K

C68

47UF/20V

C67

47UF/20V

C17
OPEN

C60
.01

C57
OPEN

C54
OPEN

C51
.01

C48
.01

C45
OPEN

C42
OPEN

R60
100

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

R225

OPEN

R226
0

R218

OPEN

R219

OPEN

R220

OPEN

R221

OPEN

U24B

TL074

+

-

6

5

7

U10

74HC4051

X0

13

X1

14

X2

15

X3

12

X4

1

X5

5

X6

2

X7

4

INH

6

A

11

B

10

C

9

X

3

R222 OPEN

R155

OPEN

C75

OPEN

R50
470

C44
OPEN

U30

74HCT193

A

15

B

1

C

10

D

9

UP

5

DN

4

LOAD

11

CLR

14

QA

3

QB

2

QC

6

QD

7

CO

12

BO

13

C74

OPEN

C76
1nF

C77
1nF

Q1

LM394

1

1

2

2

3

3

4

4

8

8

7

7

6

6

5

5

U?
DISP-40

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

R57
1.15K

C78

OPEN

C87
1UF

R103

1M

U?

TSC4429

2

6

7

1

8

4

5

R223

OPEN

C79

OPEN

U33D

TL074

+

-

13

12

14

C90
1UF

R32
510

R64
10K

C94
1UF

C81
1nF

C97

3300UF/16V

C83

47UF/20V

R119

150

C80
1nF

R84
20K

C96

47UF

C86
1UF

C102

1nF

D2

1N6263

C29
1UF

C66
100UF
63V

C85
1UF

C64
.01

R120

150

C73
1UF

C36
0.1

U31

74HCT193

A

15

B

1

C

10

D

9

UP

5

DN

4

LOAD

11

CLR

14

QA

3

QB

2

QC

6

QD

7

CO

12

BO

13

R105

2.49K

Q3

LM394

1

1

2

2

3

3

4

4

8

8

7

7

6

6

5

5

C92
1UF

D3

1N6263

C88
1UF

R2

22K

C56
OPEN

C61
1nF

R224

0

C49
1nF

C46
1nF

C59
1nF

R107

1.15K

DZ4
ICTE-12

DZ5
ICTE-12

C82
47UF
20v

R227

OPEN

R80

10K

C69
1nF

R87

50K

C89
1UF

R40
22K

C62
1nF

C53
OPEN

C47
1nF

C50
1nF

R150
OPEN

C43
OPEN

R38
22K

C72
1nF

C39
1UF

R34

1.15K

U32

DAC0800

B8

12

B7

11

B6

10

B5

9

B4

8

B3

7

B2

6

B1

5

VR+

14

VR-

15

IOUT

4

IOUT

2

COMP

16

VLC

1

C105

1nF

U15

74HC193

A

15

B

1

C

10

D

9

UP

5

DN

4

LOAD

11

CLR

14

QA

3

QB

2

QC

6

QD

7

CO

12

BO

13

C104

1nF

DZ3
6.2V

R74

1.15K

R10
1.15K

R13
22K

R172
24.9K

C41
OPEN

C84
1UF

C21
1nF

C40
OPEN

C24
1nF

C91
1UF

C55
OPEN

C58
1nF

C52
OPEN

R51

24.9K

R217
1K

Содержание FM1000A

Страница 1: ...i FM1000A RF Amplifier Package User s Manual 2005 Crown Broadcast a division of International Radio and Electronics Inc 25166 Leer Drive Elkhart Indiana 46514 5425 U S A 574 262 8900...

Страница 2: ...roduced transmitted transcribed stored in a retrieval system or translated into any language in any form by any means without the written permission of Crown International Inc Printed in U S A Crown a...

Страница 3: ...I O Connection 2 6 Section 3 Operation 3 1 Initial Power up Procedures 3 2 3 2 Power Switches 3 4 3 2 1 AC Input Circuit Breaker 3 4 3 2 2 DC Power Switch 3 5 3 2 3 Interlock Switch 3 5 3 3 Digital Mu...

Страница 4: ...ing Wave Ratio 5 3 5 2 3 ALC Automatic Level Control 5 3 5 2 4 Power Out 5 3 5 2 5 PA Temp 5 4 5 2 6 PA Voltage 5 4 5 2 7 Tot Current 5 4 5 2 8 PA1 8 5 4 5 3 Fault Indicators 5 5 5 3 1 Antenna 5 5 5 3...

Страница 5: ...tting Acquainted This section provides a general description of the FM1000A power amplifier system and introduces you to safety conventions used within this document Review this material before instal...

Страница 6: ...its are uniquely designed to be lightweight and compact for convenient shipping and require only seven RU spaces for installation Installa tion is made simple with just three interconnections between...

Страница 7: ...odulation 75 kHz 400 Hz typically 60 dB Operating Environment Temperature Range 0 50 C at sea level Humidity Range 0 80 at 20 C noncondensing AC Power 240 Volts AC 10 15 50 60 Hz Power Consumption Les...

Страница 8: ...rs DANGER represents the most severe hazard alert Extreme bodily harm or death will occur if DANGER guidelines are not followed 1 3 2 Warnings WARNING represents hazards which could result in severe i...

Страница 9: ...2 1 Installation Section 2 Installation This section provides important guidelines for installing your power amplifier and power supply Review this information care fully for proper installation...

Страница 10: ...tection grounding strap and or mat 2 3 Unpacking Before handling any exposed printed circuit boards ground yourself with an antistatic strap and or mat The power amplifier power supply and two power a...

Страница 11: ...s should all be positioned to the center of the chassis also note the position of the connector on the modules and in the chassis 4 Insert the two power modules using their slide rails into the built...

Страница 12: ...d inches 2 1 N m of torque 6 Tighten assembly screws to 10 pound inches 1 1 N m of torque 7 Tighten cord clamp screws to 10 pound inches 1 1 N m of torque 4 Loosen terminal screws Insert conductors fu...

Страница 13: ...e exciter source such as a Crown Broadcast FM30 according to its instructions 4 Connect the RF input cable from the exciter source to the N connector on the back of the PA1000 5 Connect the RF output...

Страница 14: ...lustrations 2 5 and 2 6 However for any remote operation to work the Remote Local slide switch must be in the REMOTE position Then the on board remote RAISE and LOWER push buttons and any external rem...

Страница 15: ...er output level of the amplifier to be reduced below the internal limit set by the Local Power Adjust pot or the remote Raise Lower settings However some drive power less than one watt may still be pr...

Страница 16: ...perature a buffered metering output with 1 V 20 C 12 SWR a buffered metering output with a calculated reading of standing wave ratio in VDC 13 RF Output Power a buffered metering output with a calcula...

Страница 17: ...3 1 Operation Section 3 Operation This section provides general operating parameters of your power amplifier system and a detailed description of the front panel display...

Страница 18: ...up the AC input circuit breaker located on the rear panel of the power supply do not turn on the front panel power switch yet 3 1 Initial Power up Procedures 5 Turn on the exciter a Crown FM30 or equ...

Страница 19: ...unit is normally shipped with this setting See Section 2 6 for setting up remote operation and using the on board remote buttons and other controls 7 Turn on the main power switch located on the front...

Страница 20: ...ditions are present as indicated by the PA1000 s Digital Multimeter a In Ref Should read between 0 4 and 0 8 volts 0 5 nominal dependent upon power input level b SWR Should read 1 05 to 1 5 c ALC Shou...

Страница 21: ...llustration 3 6 Interlock Switch Interlock Switch Power I O Power Switch W WARNING ARNING Lethal voltages are still present on the AC Input Board So handle with care 3 2 3 Interlock Switch This switch...

Страница 22: ...output voltage ALC will read about 6 0 volts When the RF output is being regulated by the RF power control circuit this voltage will be reduced typically reading 5 0 to 6 0 volts The ALC voltage will...

Страница 23: ...t drive must be increased To achieve full output power 30 watts of input drive is required PA Temp PA heatsink temperature is greater than 75 C power foldback will begin at this point PA DC Power supp...

Страница 24: ...rs is protected by a 10 ampere fast acting fuse When a fuse opens the indicator light next to it illuminates Fuses 3 and 4 represent amplifiers 1 and 2 on the top right module Fuses 7 and 8 represent...

Страница 25: ...che non ha la dispozione do farlo M se diciamo che che non c e nulla nel mondo reale di ma scrivendo con la matita ci insegna a non parlare ma scrivendo con la matita ci insegna a non parlare in quest...

Страница 26: ...ots on the left side are unpopulated The chassis of the power modules acts as a heat sink for the MOSFET amplifiers There are two power amplifiers mounted to spacer plates on each of the heat sinks fo...

Страница 27: ...cated nearest the Output Filter It consists of a micro strip transmission line that combines the output power from the four ampli fiers two modules so that ultimately all the power comes together at o...

Страница 28: ...and overtemperature conditions is designed into this board as well providing additional precaution against overheating This board is fail safe like all the other circuit board components in the FM100...

Страница 29: ...urrent to DC Power and from there to the PFC Switch ing Board where the rectified DC is filtered The filtered DC power is then fed from the PFC Switching Board through an 80 turn boost inductor and ba...

Страница 30: ...the power modules The DC Output Board also provides the 24 volts that operate the cooling fans in both the PS1000 and the PA1000 There are two parallel paths from the DC Output Board with half the pow...

Страница 31: ...shooting TROUBLE TROUBLE TROUBLE Section 5 Troubleshooting This section describes procedures for service personnel to diag nose and troubleshoot potential fault conditions in the power amplifier and p...

Страница 32: ...ur exciter turned on Secure all connections to the PS2000 Ensure AC input circuit breaker is flipped up Ensure main power switch is turned on Is exciter delivering sufficient RF drive Check In Ref met...

Страница 33: ...he exciter to ensure proper power input level of 25 30 watts q Check RF input cable for secure connection 5 2 2 SWR Standing Wave Ratio If the SWR is over 1 5 1 then look for q effects of inclement we...

Страница 34: ...gh SWR for overcurrent check PA DC fault indicator and if flashing check current for proper levels total and individual Power Amps for overtemperature ambient temperature higher than 50 C reduce tempe...

Страница 35: ...check for icing moisture on the feedline and secure antenna connections Overcurrent check PA DC fault indicator if flashing monitor current for proper levels total and individual Power Amps Faulty DC...

Страница 36: ...e replaced see Section 7 5 3 4 PA DC Discrepancy in current between the individual amplifiers or in total current There is a difference of current greater than 2 5 amps between any one of the 4 indivi...

Страница 37: ...wings Section 6 Reference Drawings The illustrations in this section may be useful for making adjustments taking measurements troubleshooting or understanding the circuitry of your RF power amplifier...

Страница 38: ...Breakers DC Input DC Input DC Output DC Output PS1000 PA1000 Air Intakes Filters Ground Screws Fans Power Control Air Exhaust Vents OFF OFF Illustration 6 2 Back View 6 1 Views Fault Antenna RF Drive...

Страница 39: ...ock Diagram 30 W Exciter Crown FM30 PA1000 Power Amplifier 1 kW RF Power Output Remote I O Connector Power Supply Control 0 50 VDC PA Supply PS1000 Power Supply RF Input Excitation 240 VAC 50 60 Hz In...

Страница 40: ...PS1000 Block Diagram 240 VAC AC CIRCUIT BREAKER AC INPUT NEUTRAL GROUND AC INPUT CCA POWER SWITCH RECTIFIER PFC CONTROL CCA DC OUTPUT CCA 0 to 50 VDC RETURN PS CONTROL 9 PIN DSUB 220 VDC 12 VDC VOLTA...

Страница 41: ...ERNATIONAL RADIO AND ELECTRONICS CORP AND SHALL NOT BE REPRODUCED COPIED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION 12V 12V 12V 12V POWER OFF ON 12V 12...

Страница 42: ...30VDC C26 470 C25 470 C24 470 C23 470 VR1 7815CT IN 2 C 1 OUT 3 C19 1000 D2 1N4004 R23 15K 5 3W R24 15K 5 3W DZ2 24V R34 4 7K 5 HD2 1 2 QF1 IGBT 600V 50A FAST DL1 LED DS2 1N5822 QF4 IGBT 600V 50A FAST...

Страница 43: ...00 D6 MBR3100 D7 MBR3100 D8 MBR3100 C13 1 C14 220 35V 27V C20 470pF D9 MUR130 D10 MUR130 D1 BYV44 300 D2 BYV44 300 D11 MUR130 D12 MUR130 D3 BYV44 300 D4 BYV44 300 D13 MUR130 D14 MUR130 L1 89 uH L3 89...

Страница 44: ...6 8 FM1000A User s Manual Illustration 6 5 PA1000 Block Diagram...

Страница 45: ...20K R1 82 R8 20K 1 2 3 4 5 HD1 R2 82 R3 10 BNC 1 3 C1201 1209A 1217 are circuit board pads NOTES _______ _______ 1 ALL RESISTORS ARE IN OHMS 1 4W 5 UNLESS OTHERWISE SPECIFIED 2 ALL CAPACITORS ARE IN...

Страница 46: ...0 01 PA OUTPUT BD T1121 T11S R1114 5 6 2W R1115 5 6 2W PA INPUT BD Q1101 BLF278 T1111P R1111 10K POT V L24 PA OUT PA OUT PA OUT L14 PA IN PA IN PA IN C1 1 0 C2 1 0 L18 GND GND GND PA IN GND AMPB DC PW...

Страница 47: ...6 11 Reference Drawings RF Output Combiner...

Страница 48: ...1215 01 C1214 01 D1201 1N6263 R1216 100K R1215 1K C1216 001 D1211 1N5263 R1218 1K R1214 200 0 5 W R1217 100K 1 2 3 4 5 HD1202 HEADER 5 R1216 100 14 3 3 3 3 LENGTH 0 7 0 6 GUAGE 17 12 12 12 12 0 6 0 5...

Страница 49: ...6 13 Reference Drawings Backplane Distribution Note All bypass capacitors are 0 01 mf...

Страница 50: ...6 14 FM1000A User s Manual Ribbon Cables and Connectors Ribbon Cables and Connectors...

Страница 51: ...R156 4 3K R157 10K R158 OPEN U8D TL074 13 12 14 U26A MC33282 2 3 1 8 4 U26B MC33282 6 5 7 R146 1 0K R148 10K 1 C22 100PF R147 20K 1 R168 100 R167 OPEN R166 OPEN R165 100 R164 100 R163 OPEN R162 OPEN R...

Страница 52: ...6 16 FM1000A User s Manual Notes...

Страница 53: ...ort Section 7 Service and Support We understand that you may need various levels of support or that the product could require servicing at some point in time This section provides information for both...

Страница 54: ...sheet page 7 5 and include it with your returned product 7 2 24 Hour Support In most instances what you need to know about your product can be found in this manual There are times when you may need m...

Страница 55: ...al intended use Warranty repair can only be performed at our plant facility in Elkhart Indiana USA or at a factory authorized service depot Expenses in remedying the defect will be borne by Crown Broa...

Страница 56: ...7 4 FM1000A User s Manual Notes...

Страница 57: ...pping charges which we will reimburse We do not cover any charges for shipping outside the U S or any of the expenses involved in clearing customs If you have any questions about your Crown Broadcast...

Страница 58: ...G 1 Glossary Glossary The following pages define terms and abbreviations used throughout this and other Crown Broadcast manuals A B C...

Страница 59: ...emphasis also called Wideband carrier A continuous signal which is modulated with a second information carrying signal crosstalk In FM broadcasting this term generally refers to the interaction betwe...

Страница 60: ...a Morse code rate Used in the on air identification of frequencies gain reduction The process of reducing the gain of a given ampli fier harmonics Undesirable energy at integral multiples of a desire...

Страница 61: ...pectrum between audio fre quency and the infrared portion 2 A frequency useful for radio transmission roughly 10 kHz and 100 000 MHz SCA Subsidiary Communications Authorization see subcarrier S N Sign...

Страница 62: ...mitter designed to internally change an FM signal from one frequency to another for retrans mission Used in conjunction with terrestrial fed networks satellator A transmitter equipped with an FSK ID o...

Страница 63: ...E E E Efficiency 1 3 efficiency 1 2 exciter 1 2 F F F F F Fans 4 4 4 6 5 5 Fault Indicators 3 7 5 5 Frequency Range 1 3 Fuse Indicators 3 8 H H H H H Humidity Range 1 3 I I I I I In Ref 3 4 5 3 Input...

Страница 64: ...e 1 3 RF output power 1 2 RF Power Output 1 3 RF power output 1 2 RU spaces 1 2 S S S S S S N Ratio 1 3 Safety 1 4 Schematics 6 3 Spurious Products 1 3 SWR 1 3 3 4 5 3 T T T T T Tot Current 5 4 transm...

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