Tektronix instruction manual 1705A Spectrum Monitor, Microprocessor, Trace, 5V Supply Rotation

J1

CONNECTS

TO J303

H1

<6>

A2

FRONT

PANEL

BOARD

8031 ONLY

AD[0..7]

W1

0 OHM

A0

U2

U8

U9

+5V

MICROPROCESSOR

8031

74ALS573

27C64

1

31

EA/VP

P0.0

39

AD0

2

D1

Q1

19

10

A0

O0

11

AD0

AD0

2

R5

C2

P0.1

38

AD1

3

D2

Q2

18

9

A1

O1

12

AD1

AD1

3

10K

33PF

19

X1

P0.2

37

AD2

4

D3

Q3

17

8

A2

O2

13

AD2

AD2

4

P0.3

36

AD3

5

D4

Q4

16

7

A3

O3

15

AD3

AD3

5

Y1

C3

12MHZ

P0.4

35

AD4

6

D5

Q5

15

6

A4

O4

16

AD4

AD4

6

33PF

+5V

18

X2

P0.5

34

AD5

7

D6

Q6

14

5

A5

O5

17

AD5

AD5

7

P0.6

33

AD6

8

D7

Q7

13

4

A6

O6

18

AD6

AD6

8

C1

B4

B2

D1

32

AD7

9

12

3

19

AD7

AD7

9

R2

10UF

P0.7

D8

Q8

A7

O7

/LBAND

<1> <3> <3>

10.0K

9

RESET

11

25

A8

10

/10KHZ

<2>

A4

+5V

21

C

24

P2.0

1

A9

/VFILTER

<4>

E2

22

OC

21

J1

P2.1

A10

1A

1

BANDWIDTH

R300

B2

<4>

2DB

12

INT0

P2.2

23

23

A11

R6

10.0K

100.0

1B

2

FILTER

J300

B4

<3>

RO--- BLANK

13

INT1

P2.3

24

2

A12

LED_ON

P300

3

INPUT

2

14

25

2A

HALF

T0

P2.4

NC

R7

1

27

26

100.0

SPAN_UP

NC

+5V

PGM

NC

U6

LED_300K

2B

4

SPAN

<3>

/1MHZ

15

T1

P2.5

26

74ALS574

C1

20

CE

5

NC

27

AD0

2

19

R8

3A

P2.6

22

1

D1

Q1

100.0

6

SPAN_DN

FILTER

1

28

NC

OE

VPP

+5V

AD1

3

18

LED_10K

3B

P1.0

P2.7

D2

Q2

4A

7

LED_1M

BANDWIDTH

2

P1.1

AD2

4

D3

Q3

17

R9

100.0

LED_100K

INPUT

AD3

LED_LBAND

4B

8

3

P1.2

RD

17

5

D4

Q4

16

5A

9

LED_FULL

SPAN_UP

4

P1.3

WR

16

AD4

6

D5

Q5

15

R10

100.0

LED_10M

SPAN_DN

AD5

LED_70M

5B

10

5

P1.4

PSEN

29

7

D6

Q6

14

6A

11

LED_LBAND

6

P1.5

ALE/P

30

C2

AD6

8

D7

Q7

13

R11

100.0

LED_70M

AD7

LED_1M

6B

12

C5

E3

7

P1.6

TXD

11

/10MHZ

<3>

U7A

9

D8

Q8

12

U7C

74ALS00

LED_300K

7A

13

<3>

<4>

/RO--- EN

8

P1.7

RXD

10

74ALS00

1

LED--- CONT

R12

9

3

11

100.0

LED_10K

C3

CLK

LED_10M

14

8

2

7B

U1

FULL

<3>

10

1

OC

ADC0831

8A

15

NC

R13

5

6

U7D

100.0

LED_ON

+5V

VREF

DO

LED_100K

16

R3

74ALS00

8B

CFT

<3>

B3

CFT

CFT

15.0K

12

9A

17

2

+IN

CLK

7

11

U7B

13

9B

18

FOCUS

FOCUS

<4>

A3

R1

3

--- IN

CS

1

74ALS00

R14

4

100.0

10A

19

SCALE

R133

7.32K

6

/FULL

LED_FULL

68.1K

8

4

5

+5V

VCC

GND

20

S_SPD

10B

SWP_SPEED

<3>

A1

11A

21

INTENS

INTENS

<3>

D5

R4

11B

22

ROTATE

2K

12A

23

H_POSN

HORZ_POSN

<4>

READOUT

H4

CAL

+11.8V

12B

24

V_POSN

VERT_POSN

<4>

H2

+15V

R26

13A

25

NC

U3

U4

20.0K

CR1

R27

78L05

2444

13B

26

NC

20K

3

1

8

3

IN

OUT

VCC

DI

27

HORZ POSN

14A

G

C16

6

4

READOUT

C5

RCL

DO

U10

28

--- 5V

14B

+5V

+5V

100UF

.1UF

7528

2

7

STO

CLK

2

29

4

3

15A

--- 5V

VREFA

RFBA

5

1

GND

CE

30

18

+11.8V

15B

VREFB

R15

R25

16A

31

4.02K

24.3K

1

8

AD0

14

E3

D0

8

32

2

16B

+11.8V

7

AD1

13

2

2

<4>

33

3

D1

OUTA

1

17A

XAXIS

R17

C12

U11

AD2

12

1

3

D2

AGND

34

4.32K

6 5 4

LM311

17B

--- 11.8V

.1UF

U12A

NC

AD3

11

5

D3

DGND

TL072

AD4

10

4

D4

+5V

AD5

9

D5

VDD

17

+5V

--- 11.8V

AD6

8

D6

R16

19

RFBB

150.0K

Q3

AD7

7

D7

U12B

E3

/WR

16

5

TL072

<4>

WR

+11.8V

7

YAXIS

R18

/RO--- POS

15

20

6

C13

CS

OUTB

150.0K

10UF

B C E

A0

6

A/B

R245

1.00K

+11.8V

J100

R28

Q100

LIGHT ENABLE

20.0K

R29

SCALE

20K

1--- 2 ENABLE

R21

2--- 3 DISABLE

VERT POSN

R20

100.0

Q3

READOUT

TRACE

4.75K

--5V SUPPLY

--- 5V

ROTATION

R246

J414

P100

P200

1.00K

1

2

3

4

2

+15V

3

1

DS100

C8

1

R24

--- 11.8V

.1UF

100.0

G

Q1

2

3

IN

OUT

--- 5V

R19

J2

U5

180

CONNECTS

DS200

--- 11.8V

79L05

1/2W

J2

TO CRT

FRONT

1

PANEL

R23

2

H1

100.0

<8>

P800

DS300

Q2

2

1

--- 15V

C17

1

2

.1UF

--- 15V

	NOTE:	SEE PARTS LIST FOR EARLIER VALUES
A3A1 GRATICULE LIGHT BOARD		AND SERIAL NUMBER RANGES.	PART OF A3 MAIN BOARD

1705A SPECTRUM MONITOR

REV JUL 1994 MICROPROCESSOR <5>