Multimeter Gmt-19a - Schematic Diagram

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R32 IK

RELAYS & DRIUERS

qb45sc.tif

Floor Plan Bread Bakery Factory

45-4001

TO DISPLAY BOARD

TO DISPLAY BOARD

Digital Multimeter Schematic Diagram

61

DATAC1)

60

DATAC 2)

59

DATAC 3 )

58 DATAC A 1

57

DATAC5)

56

DATAC 6)

55

DATAC 7 )

53

ADDC0)

52

ADDC1 )

51

ADDC 2)

50

ADDC 3)

49

ADDC 4)

48

ADDC 5)

47

ADDC 6)

46

ADDC 7)

44

ADDC 8)

43

ADDC9)

42

ADDC10)

41

ADDC11 )

40

ADDC12)

39

ADDC13)

36

ADDC14)

37

ADDC 0il5)

DIGRI >-LOU BATTERY I V-

R33 180

3904

TD RS-232 OPTION

4 RX

3 TX

2 SND

DIGITAL

R57 910

DATAC0'7)

ADDC0"15)

DATAC1)

12

DATAC2)

13

DATAC3)

15

DATAC 4)

16

DATAC 5)

17

DATAC 6)

18

DATAC 7)

19

ADDC 0 )

10

ADDC1)

9

ADDC 2)

8

ADDC 3 >

7

ADDC4)

6

ADDC5)

5

ADDC6)

4

ADDC71

3

ADDC B)

25

ADDC 9)

24

ADDC10)

21

ADDC 11 )

S3

ADDC12)

2

ADDC13)

26

ADDC14 )

27

ADDC15)

1

DO

UCC

D1

D2

D3

D4

D5

D6

D7

27C512

AO

Al

A2

A3

A4

A5

A6

A7

A8

A9

A10

All

A12

A13

CE»

Al 4

A16

A15

DATAC0) 11

DATAC1)

12

DATAC 2)

13

DATAC 3)

15

DATAC 4)

16

DATAC5)

17

DATAC 6)

IB

DATAC7)

ADDCO) 10

ADDC2) B

ADDC3)

ADDC7)

ADDCB) SS

ADPC9) 24

flPD(lO) 51 23

APDC12 2

ADDC2) B

ADDCB) SS

ADPC9) 24

flPD(lO) 51 23

APDC12 2

CS»

UCC

DO

CS2

D1

A14

D2

D3

D4

D5

D6

D7

6264

AO

Al

A2

A3

A4

A5

A6

A7

A8

A9

A10

OE»

All

UE«

ADD(0i15) DATAC 0'7)

DATAC 6)

3

DATAC 5)

4

DATAC 4)

5

DATAC3)

6

DATAC 2)

7

DATAC1)

B

DATAC 0)

qb46sc.tif

Tektronix 465 Interface Circuit Board

45-4001

Ger Tebeschreibung

qb47sc.tif

CKT1
Meter Diagram
CKT2

45-4002

S21 S14 S7 S1 S8

NOTES: unless otherwise speci fi ed

2. ALL CAPACI TANCE IS IN M CRO FARADS.

r nr nr ir

Z1 < Z1 s Z1 < Z1 5 Z1 5 Z1 > 10K> 10K> 10K> 10K> 10K> 10K

Fluke 111 Schematic

AN0DE0

ANODE1

ANODE2

ANODE3

ANODE4

ANODE5

ANODE6

ANODE7

ANODE8

ANODE9

AN0DE10

ANODE11

ANODE12

ANODE13

REFERENCE DESI GNATON

LAST USED

NOT USED

C6

CR3

CR1, 2

DS1

J1

LSI

Q1

R12

R6- 9, 11

S21

S19, 20

TP6

U6

U3, 4

Z1

ANODE1

ANODE2

ANODE3

ANODE4

ANODE5

ANODE6

ANODE7

ANODE8

ANODE9

AN0DE10

ANODE11

ANODE12

ANODE13

REMOTE

EXT TRG

REMOTE

EXT TRG

SMF

MAX

dB

REL

0

10 0

M

M MÄ

(432/

AUTO

M

/5 60 1/

h01/

M

/5 60 1/

0 1

9 M,

/4 3

^

m VACDC

UNCAL

m A

m V

AC

12

12 10 11

45-1002

DSVF- CPF2 38 8

74HC1 32

qb48sc.tif

Figure 9-2. A2 Display PCA (cont)

Figure 9-3. A1A1 True rms PCA

NOTES :UNLESS OTHERWISE SPECIFIED

1. PILL RESISTANCES ARE IN OHMS,1/8 UIFITT ,+/-5* .

2. PILL CAPACITANCES ARE IN MICROFARADS.

LAST USED

NOT USED

C3

J1

R1

U1

BUF IN BUF

OUT

NC

UIN

OFFSET

NC +US

CHIP SEL

-US

DEN IN

OUT

AD637

C3 68/6.3U

C2 68/6.3U

AA/V

-UAC

45-1006

qb49sc.tif

Figure 9-3. A1A1 True rms PCA (cont)

Patau Diagram
Figure 9-4. A4 Battery PCA
Amplifier Class Shematic

Figure 9-4. A4 Battery PCA (cont)

qb53sc.tif

Figure 9-4. A4 Battery PCA (cont)

qb53sc.tif

Gmt 19a Schematic

Figure 9-5. A5 IEEE-488 Interface PCA

NOTES: UNLESS OTHERWISE SPECIFIED.

1. ALL RESISTANCES ORE IN OHMS, 1 / 8LIATT , +/-5x .

2. ALL CAPACITANCES ARE IN MICROFARADS.

MAIN PWB

2 addc15)

rpdib)

15 ADDIS)

20 5NP

MAIN PLIB

2 patai 7)

prtrmi

8 patau)

12 optsu»

13 e

14 RESET

REFERENCE DESIGNATION

LAST USED

NOT USED

CI 2

Cl-5

CR1

J3

Q1

R4

TP6

U9

PRTRÍ 6)

17

PRTRÍ5)

16

PRTRÍ 4)

15

PRTRÍ 3)

14

PRTRÍ2)

13

PRTRÍ1)

12

PRTRÍ 0 )

u3

pir

oe

bo

ro

b1

r1

b2

r2

83

r3

b4

r4

b5

rs

b6

r6

b7

r7

hct245

7

3

PÍ6>

4

PÍS)

5

PÍ4)

6

PÍ3)

7

PÍ2)

8

Oí 1 )

9

PÍO»

20

U4

OE

A3

Y3

R2

Y2

fil

Y1

RO

YO

HC244

oe

R3

Y3

R2

Y2

fil

Y1

RO

YO

HC244

hc74 >clk q clr

brs16

SM'SOU

hc02

hc02

111 \10 hc02

hc02

hc02

hc30

Pí 0 >

11

Oí 1 )

12

Pí 2 )

13

Pí 3 )

14

Di 4 >

15

Pí5>

16

DÍ6)

17

P(7)

19

te rccgr» accrq» tr digl pice di03

did4 pios rsi rso ue» pgin

int» rst» uss pi06 dïd7 diob cent» srq atn eoi dau msfp 1-cfic ifc ren ucc

pe

te

pi

b1

p2

b2

p3

b3

p4

b4

p5

b5

p6

b6

p7

b7

pe

B8

gnd

J/25U

pc srq rtn edi pru te srq atn edi

DRU m5fp nrfp m3rc norc ifc ifc ren ren gnd ucc 75161

PI01

OIDj

pios pi07

PIOS

hc74 xdlk q clr

45-1005

Figure 9-5. A5 IEEE-488 Interface PCA (cont)

qb54sc.tif

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