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Schematic Diagrams

35

SHIELD CONTACT

COM TERMINAL

CONNECT TO

THERMALLY

DC

800 HZ FILTER

10A

AC

440MA

2-POLE 6HZ FILTER X2

OSP_POR*

DC_COMP_OUT

DCAMP_OUT

LPF_OUT

GRD1

OSP_ICNTL

OSP_SCK

OSP_SDI

OSP_CS*

U9

15MIL

MMSZ6V2T1

AGND1

Q13

R72

110K

24.9K

R171

1.50M 1.50M

4.99K

FDN360P

MMBT5087

ACBUF_INV

NOLOAD

50V

5%

0.033U

C152

AGND

12A

8B

S1

9

8B

S1

36

34E

8A

S1

8A

7

S1

35

6
5

4B

S1

37

4A

S1

33

4A

S1

34C

31B

31A

30

S1

13B

13A

12C

12B

S1

34D

34B

11B

11A

10

S1

3
2

1

S1

R56

C23

E131

R272

Q44

R271

R269

R263

CR20

R261

R260

R264

R266

R265

R267

R268

R262

R270

R256

8

4

1

3
2

U5

8

4

7

5
6

U5

R250

CR19

C154

C153

E132

R255

R254

R239

R236

7

6

Z2

5

6 Z2

4

6 Z2

3

6 Z2

2

1 Z2

B4

B3

B2

B1

P1

D4

D3

D2

D1

P1

C4

C3

C2

C1

P1

A4

A3

A2

A1

P1

E18

C1

Q24

Q3

R3

C2

Q1

TP26

TP27

5

6

8

4

1

3

2

7

U14

E12

C32

R89

C49

E13

R87

R93

C45

R90

5

2

1

3
4

U18

E24

E7

Q4

CR3

Q6

Q7

R78

RT2

Q8

C7

5

3

2

U3

R37

R28

R36

CR4

R173

Q27

DS2

R61

R8

C25

C24

R11

CR2

VR3

VR4

VR2

VR1

C106

C107

R1

R2

Q2

R21

C31

C22

C18

C16

Q5

Q11

Q10

E11

E5

E22

E17

E2

E4

R29

C103

R16

R14

R12

5

1

2

4

3

U1

XBF2

XAF2

R172

R170

R166

R168

R169

R13

R15

2

1

RV2

C6

R49

2

1

3

Q12

5

2

1

3
4

U2

7

16

9

10

11

8

6

3

5

4

1

2

15

13

12

14

U12

R57

R52

C17

C14

E42

C102

Q25

L4

R27

C3

R4

RT1

Z1

2

1

RV1

2

1

RV3

E1

R6

R163

CR15

P

N

AC2

AC1

CR14

R167

R165

M2

4

3

2

1

R5

XBF1

XAF1

R71

8

4

1

3
2

U16

C43

C40

C48

R85

R86

R92

R50

C27

C36

5MM

5MM

5MM

5MM

10M

1.1M

100K

10K

250

5%

200V

GND

3C3

261K

15MIL 22.1

10

0.5W

+5V

4.99K

0.1%

GND

0.022U

1

5%

2.5W

1W

1%

100

10%

1K

10.0K

10.0K

10.0K

10.0K

499K

15MIL

DB101S

33MIL

0.1%

2C1 3D8

2C1 3C8

2C1 3D8

2C2 3B8

3C1 3B8

3C1

3C4

3D8

3D8

3C1

3C1 3B8

3C1

2C1 3C8

2A1

3B8

3C1

3C1

3B2

3C3

3C3

3C3

3C3

3C8

3C8

3C7

LZ VDC mA uA

LO*

16V

16V

0.1U

0.1U

0.1U

0.1U

0.1U

50V

50V

20%

16V

1U

499

BC817

BAV199

LZ R C/D LO

mVDC

mVAC

LO1

2.5MM

VAC mVAC LO

VAC

VDC mVDC R

LZ

mVDC R C/D

LO2

VAC VDC mA uA

VDC mVDC R C/D LO

LZ2

50MIL

mA

uA

50MIL

2.5MM

2MM

50MIL

50MIL

910V

LTC6101

AVSS

AVSS

4.99K

50V

BC817

AVSS

50K

22P

2.5MM

1000V

5%

MMSZ6V2T1

6.2V

10MM

5%

15MIL

AVSS

GND

1.50M

VCLAMP

50V

0.01U

RMS_IN

ACF_IN

LPF_OUT

50MIL

50PPM

LO_OHM_ISNS

2.00K

+20V

1.00K

4.99K

0.1%

AGND1

50MIL

1MM

65MIL

65MIL

33MIL

GRD3

2MM

2MM

1.50M

1.50M

976K

15MIL

BAV199

499K

15MIL

BAV199

15MIL

15MIL

+5V

AD8541

1.50M

1%

0.001U

BAV199

10

6.2V

MMSZ6V2T1

5%

20.0K

20.0K

GND

910V

+3V

MMBT3904

INPUT_JACK

GND

BSS138

INFRARED

0.0068U

4.99K

SFH325FA

AGND

1W

50V

74HCT4053

LO_OHM_ISNS

AC_OUT

RMS_IN

ACBUF_NINV

AGND

40.2K

AVSS

+5V

AGND

RMS_OUT

10.0M

AVSS

AVSS

AVSS

AGND

+5V

0.22U

AGND

102K

1W

+5V

1.00M

+20V

GRD3

OPA2364

AVSS

MSP_MAJACK

+3V

FB

3

1

+5V

GND

AGND

AGND1

AGND

ACF_OUT

AD8603

GND

AGND

IN2

1

GND

LTC1968

IN1

1

AVSS

+5V

GND

-EN

VOUT

AVSS

+5V

AVSS

AVSS

AVSS

ACF_IN

GND

AVSS

ACBUF_OUT

107K

97.6K

51.1K

51.1K

1.00K

3.09K

249K

0.1%

BC807

GND

SFH325FA

100K

200

1M

BC807

432K

GND

1.00M

100

1.1K

20%

910V

AGND

+5V

124K

0.15U

374K

RMS_EN*

VDD

RTN

AGND

GND

10MM

65MIL

65MIL

260MIL

5%

6.2V

MMSZ6V2T1

1.1K

2.5MM

AD8617

4.7U

6V

AVSS

RMS_OUT

AC_OUT

LPF_OUT

ACBUF_NINV

LPF_SW

AC_BUF

ACF_SW

260MIL

100K

AGND

MSP_JACK_DET

AVSS

GND

+3V

AVSS

AP2012F3C

MSP_AJACK

2K

0.01U

50V

10V

16V

50V

AGND

0.0027U

5%

50V

AGND

390P

5%

50V

16V

0.47U

16V

GRD2

1.00K

0.1%

0.047U

332

FDN337N

2.5MM

0.01U

AVSS

50V

0.022U

0.022U

50V

0.0

50V

AVSS

AVSS

AGND

0.01U

50V

0.01U

50V

AVSS

HI_OHMS*

FDN337N

1.00K

22.1K

MMBT5087

0.1%

825

220_OHM

MMBT3904

AVSS

10M

BAV199

LM4041-ADJ

GND

5%

1%

2.5MM

6.2V

50MIL

10MM

INPUT_JACK

0.47U

4.99K

MMBT5089

20%

50MIL

VCLAMP

GND

WW

1W

2%

.010

GF1B

GND

499K

+20V

INPUT_JACK

260MIL

INPUT_JACK

65MIL

MMBT3904

NINV_X5

NINV_X1

+5V

OPA2364

NINV_FB

50V

NOLOAD

5%

NOLOAD

50V

100P

NOLOAD

100P

NOLOAD

2K

10P

50V

GRD1

AGND

IR1

RJ

+

-

FREQUENCY

COMPUTER

ACAMP_O

SCK

SDI

CS*

POR*

V-

COMP_O

V+

R3

GND

R0

CPC_H

CPC_S2

FIL_IN

FIL_O

GND

IR2

R1

ISRC

INTERFACE

COMPARATOR

INPUT

R2

FAMP_O

+

-

+

CONV_IN

FAMP_M

DIV

SENSE

SWITCHING

GRD1

GRD2

GRD3

GRD4

-

BUFFER_O

ICNTL

ACAMP_M

R4

CURRENT SOURCE

CPC_S1

GAIN

BUFFER

FILTER AMP

AC AMP

-

+

V-

V+

OUT

IN

IN

OUT

IN

IN

OUT

IN

OUT

IN

IN

OUT

OUT

OUT

IN

IN

IN

IN

OUT

IN

IN

IN

OUT

+t

+5V

+5V

+5V

-

+

V-

V+

-

+

V-

V+

-

+

V-

V+

+t

S

S

S

CURRENT

MIRROR

-

V-

V+

+

S

A0

A

B0

S0

S1

S2

C

B

E

GND

VEE

A1

B1
C0

C1

VCC

-

+

V-

V+

Figure 7.  189 II/AN System  PCA

FLUKE-189II/AN-1001

(1 of 4)

Содержание 189II/AN

Страница 1: ...rved Printed in USA Specifications are subject to change without notice All product names are trademarks of their respective companies 189II AN True rms Digital Multimeter Service Manual Reproduction...

Страница 2: ...e center to obtain return authorization information then send the product to that service center with a description of the difficulty postage and insurance prepaid FOB Destination Fluke assumes no ris...

Страница 3: ...ns 7 Capacitance and Diode Test Specifications 8 Frequency Counter Specifications 8 Frequency Counter Sensitivity 8 MIN MAX Recording and Peak Specifications 9 Input Characteristics 9 Burden Voltage A...

Страница 4: ...17 Keypad Test 17 LCD Test 17 IR Port Verification 18 Temperature Accuracy Test 18 Accuracy Tests for Volts Current E and G Test Functions 19 Calibration Adjustment 22 Operation 23 Entering the Passwo...

Страница 5: ...re Test Input and Display 19 4 189II AN Performance Test Steps 19 5 Calibration Entry Soft Keys 23 6 Softkey Functions during Calibration 25 7 Calibration Adjustment Steps for Firmware Version 1 00 26...

Страница 6: ...189II AN Service Manual iv...

Страница 7: ...Title Page 1 Fluke 189II AN Block Diagram 12 2 Testing the Current Fuses 15 3 Battery and Fuse Replacement 16 4 PCA Component Location 24 5 Calibration Adjustment Screenshot 24 6 Replacements Parts 32...

Страница 8: ...189II AN Service Manual vi...

Страница 9: ...s Digital Multimeter hereafter referred to as the Meter Information provided includes Precautions and safety information Specifications Basic maintenance cleaning replacing the battery and fuses Perfo...

Страница 10: ...urrent or Voltage I Fuse F DC Direct Current or Voltage T Double Insulated X Hazardous voltage W Important Information refer to manual Battery Low battery when shown on the display J Earth ground R Co...

Страница 11: ...might be impaired Do not use the Meter if it is damaged Before you use the Meter inspect the case Look for cracks or missing plastic Pay particular attention to the insulation surrounding the connect...

Страница 12: ...s keep fingers behind the finger guards on the probes Only use test leads that have the same voltage category and amperage ratings as the meter and that have been approved by a safety agency Use prope...

Страница 13: ...EN61326 1 Australian EMC N10140 US FCC FCC CFR47 Part 15 CLASS A Certifications UL CE CSA N10140 Detailed Specifications Accuracy Accuracy is specified for a period of one year after calibration at 1...

Страница 14: ...0 01 A 1 20 0 6 20 0 6 20 5 40 AC A 3 5000 A 0 1 A 1 5 0 6 5 0 6 10 5 40 50 mA 0 001 mA 1 20 0 6 20 0 6 20 5 40 AC mA 3 400 mA 0 01 mA 1 5 0 6 5 1 5 10 5 40 5 A 0 0001 A 1 5 20 0 8 20 3 40 4 Not Spec...

Страница 15: ...ecifications Function Range Resolution Accuracy 500 1 0 01 0 05 10 5 k 1 0 0001 k 0 05 2 50 k 1 0 001 k 0 05 2 500 k 0 01 k 0 05 15 5 M 0 0001 M 0 15 4 30 M 0 001 M 1 5 4 50 M 0 01 M 1 5 4 50 M up to...

Страница 16: ...40 V 300 kHz 1000 V 50 V 300 kHz 5 V 100 V 300 kHz Approximate Current Sensitivity rms sine wave Input Range 15 Hz to 10 kHz AC Bandwidth Approximate DC Trigger Levels DC Bandwidth 500 A 25 A 100 kHz...

Страница 17: ...to the product of a V rms sinewave times frequency of 2 x 107 V Hz 2 For circuits 0 5 A short circuit 660V for high energy circuits Burden Voltage A mA A Function Range Burden Voltage 500 A 102 V A 5...

Страница 18: ...acteristics Recommended Model Calibrator AC Voltage Range 0 1000 Vac Accuracy 0 0875 Frequency Range 20 Hz 100 kHz Accuracy 3 DC Voltage Range 0 1000 Vdc Accuracy 0 0075 Current Range 0 10A Accuracy A...

Страница 19: ...alog Signal Conditioning section is controlled by the measurement processor It gets the range and function from the master control section It in turn sets up all the analog switches starts the ADC rea...

Страница 20: ...2 5 1 8 VSS LCD Measurement uP 12 bit ADC Timers SPI Other Buttons Beeper Backlight Flash and PSRAM Memory LCD Bias On Off Button Rotary Switch Jack Detect fet36 eps Figure 1 Fluke 189II AN Block Diag...

Страница 21: ...r handling them 3 Using the procedures packaging and bench techniques that are recommended The following practices should be followed to minimize damage to S S static sensitive devices 1 MINIMIZE HAND...

Страница 22: ...E EDGES AND NEVER TOUCH OPEN EDGE CONNECTOR EXCEPT AT STATIC FREE WORK STATION PLACING SHORTING STRIPS ON EDGE CONNECTOR HELPS PROTECT INSTALLED S S DEVICES 9 HANDLE S S DEVICES ONLY AT A STATIC FREE...

Страница 23: ...o the case top by six screws Remove the screws with a Phillips head screwdriver 5 Pull the case bottom and cast top apart Removing and Reinserting the Printed Circuit Assembly The circuit board assemb...

Страница 24: ...the case halves W Caution Do not over torque the six Phillips head case screws when attaching the case bottom Use 5 to 7 inch lb of torque 9 Reinstall the six case screws and the battery door 10 Secur...

Страница 25: ...screwdriver to turn the battery door fastener to the unlock position 3 Remove either fuse by gently prying one end loose then lifting the fuse out of the fuse contacts 4 Install only Fluke specified r...

Страница 26: ...t feature Clean the terminals as follows 1 Turn the Meter off and remove all test leads 2 Shake out any dirt that may be in the terminals 3 Soak a clean swab with mild detergent and water Work the swa...

Страница 27: ...ut terminal 3 Turn the rotary switch to all functions except current functions Note that the beeper Chirps continuously and the LCD displays a warning 4 Turn the rotary switch to the A mA position Not...

Страница 28: ...t the following Send line ends with line feed Echo typed characters locally Append line feeds to incoming line ends Wrap lines that exceed terminal width 9 Enter the identification command ID followed...

Страница 29: ...surements in Table 4 are subject to offsets caused by thermals due to temperature gradients between connecting materials After connecting the calibrator to the Meter terminals allow time could be seve...

Страница 30: ...4 9973 5 0027 14 Ohms 50 000 k 50 k 49 973 50 027 Set 5520A for COMP OFF and Remove Auxiliary Test Cable 15 Ohms 500 00 k 500 k 499 73 500 27 16 Ohms 5 0000 M 5 M 4 9921 5 0079 17 Ohms 30 000 M 30 M...

Страница 31: ...to Capacitance function Remove Test Leads from 5520A and REL offset Reconnect Test Leads to 5520A 40 Capacitance 10 00 nF 3 5 nF 4 90 5 10 41 Diode Test 3 1000 V 3 5 k 2 0000 3 1000 42 Diode Test 3 1...

Страница 32: ...residual 4 Test limits are mathematically guard banded to ensure performance at 20 kHz and lower Calibration Adjustment Perform the Calibration Adjustment Procedure when the Meter fails any performanc...

Страница 33: ...ssword attempt the F4 Cancel key is pressed If an incorrect password is entered then Incorrect password entered message is displayed Press OK to return to the Enter Password screen Changing the Passwo...

Страница 34: ...e 5 shows a screen shot of the first step of the calibration adjustment procedure Next 0 03 mVDC Abort Source 0 0000 mV 0 000Hz Calibration Step 1 of 56 CALIBRATING Manual Range 500 mVDC 8 10pm 06 13...

Страница 35: ...e during the calibration procedure Navigation Buttons The UP and DOWN Arrow buttons can be used to adjust display contrast while in the calibration mode The RIGHT and LEFT Arrow buttons are disabled M...

Страница 36: ...iew the calibration adjustment counter go to the Setup Meter Info screen Power Cycle If the Meter power is turned off during calibration the procedure will be aborted and any calibration constants cal...

Страница 37: ...1000 0 V 60 Hz 7 4 18 VDC 0 0 V 0 Hz 3 30 19 VDC 5 0000 V 0 Hz 3 5 20 VDC 5 0 V 60 0 Hz 4 5 21 VDC 5 0 V 20 0 kHz 3 35 22 VDC 50 000 V 0 Hz 3 8 23 VDC 50 0 V 60 0 Hz 5 15 24 VDC 50 0 V 20 0 kHz 7 115...

Страница 38: ...mA 60 Hz 10 4 49 ADC 5 0 A 0 Hz 8 4 50 ADC 10 0 A 0 Hz 3 2 51 AAC 5 0 A 60 Hz 10 4 52 AAC 10 0 A 60 Hz 9 4 1 Meter is Calibrating after Next is pressed 2 For software version 1 00 the instrument disp...

Страница 39: ...0 V 0 Hz 2 1 24 VDC 1000 0 V 0 Hz 3 1 25 VDC 5 0 V 55 Hz 3 12 26 VDC 5 0 V 20 0 kHz 3 13 27 VDC 50 0 V 55 Hz 5 16 28 VDC 50 0 V 20 0 kHz 5 32 29 VDC 1000 0 V 55 Hz 5 7 30 mV DC 500 0 mV 55 Hz 5 8 Conn...

Страница 40: ...C 400 0 mA 55 Hz 2 1 45 ADC 10 0 A 0 Hz 2 1 46 AAC 10 0 A 55 Hz 2 2 Connect the 5520A in a 4 Wire configuration and select COMP 2 Wire To reduce settling time apply 10 ohms to Meter before setting Rot...

Страница 41: ...NTACT POSITIVE BOTTOM CASE 2578353 XBT2 3 BATTERY CONTACT NEGATIVE BOTTOM CASE 2578375 DS1 LCD MODULE 2734828 H15 18 SCREW M3X0 5 6MM PAN PHILLIPS 2743764 H7 14 SCREW 4 14 510 PAN PHILLIPS STEEL 85366...

Страница 42: ...189II AN Service Manual 32 H7 14 8x H1 6 6x MP7 MP2 MP30 MP3 MP6 MP8 MP9 MP4 MP46 H15 18 4x MP12 MP16 MP5 MP1 MP49 MP45 XBT1 XBT2 3 DS1 MP42 44 F2 F1 fet34 eps Figure 6 Replacements Parts...

Страница 43: ...True rms Digital Multimeter Schematic Diagrams 33 Schematic Diagrams The schematic diagrams for the 189II AN are shown in Figure 7...

Страница 44: ...189II AN Service Manual 34...

Страница 45: ...5MM 1000V 5 MMSZ6V2T1 6 2V 10MM 5 15MIL AVSS GND 1 50M VCLAMP 50V 0 01U RMS_IN ACF_IN LPF_OUT 50MIL 50PPM LO_OHM_ISNS 2 00K 20V 1 00K 4 99K 0 1 AGND1 50MIL 1MM 65MIL 65MIL 33MIL GRD3 2MM 2MM 1 50M 1 5...

Страница 46: ...AGND 16V 20 AVSS AVSS EVQPLHA15 RST DVSS DVSS EVQPLHA15 MSP_IRRXD 32 768KHZ 2 00K 10U 10U 10U 20 16V 20 16V 20 10U 0 1U 0 1U 0 1U 0 1U 0 1U 0 1U 16V 16V 16V 16V 16V 16V MXS_SCK MXS_INT 16V MSP_CS 2C1...

Страница 47: ..._05 KEY_02 KEY_01 DVSS OE WE PSRAM32_CS DVSS WE MXS_MOSI MXS_MISO MXS_SCK 31 MXS_INT DVSS WE EB0 MXS_TMS 9 LCD_K 15 DVSS 1 8V DVSS 3V_SW 1 8V 1 8V 3V_SW 3V_SW DVSS DVSS 18 12 MT45W2MW16 24 23 21 19 20...

Страница 48: ...19 2 5V TRM GND 0 01U 50V 20 10V 50V 0 01U 20 16V VIN DVSS LCD_V4 LP324 20V 20V EN1 GND LCD_V1 5V 2 47U 0 0 SS13 1 00K 24 9K 1 00K 1 00M 2M 121K 562K 124K 124K 1 50M 4 75 4 75 4 75 124K 124K 3 32 249...

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