Fluke 189II/AN Скачать руководство пользователя страница 47

Schematic Diagrams

37

FLUKE-189II/AN-1001

(3 of 4)

Figure 7.  189 II/AN System PCA - Digital Processor (cont)

ETHERNET CONNECTOR

F4

F2

F3

BACKLIGHT

CAL

JTAG

NVDD1 - 1.8V

LCD

PSRAM

MODEL DETECT

BEEPER

RIGHT

UP

FOR DEVELOPMENT ONLY

FLASH

LEFT

RANGE

MINMAX

F1

KEYPAD

DOWN

HOLD

INFO

NVDD2 - 3.0V

NVDD3 - 3.0V

NVDD4 - 3.0V

FOR DEVELOPMENT ONLY

PCA REVISION DETECT

AVDD1 - 3.0V

R277

R284

R283

R282

R281

R280

R279

R278

R273

C170

C166

C176

C173

C169

C165

C175

C172

C168

C164

C163

C167

C171

C174

TP30

TP28

R237

R121

R120

R95

R97

TP12

TP15

TP20

TP22

R125

R126

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

J3

R133
R128
R124

TP23

TP13

E34

TP19

E36

TP21

E37

E28

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

J7

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

J6

1

2

3

4

J5

R151

5

2

1

3
4

U23

CR13

R150

C100

C101

R160

CR12

R162

R159

C99

R161

C96

R154

5

1

3

4

2

U22

R152

R153

DS1

R158

R156

Q23

R155

E32

E31

E29

E30

E40

E38

TP16

R137

C6

G8

F7

H6

H4

H2

B2

A4

G4

D6

D5

H3

A6

D4

F8

E3

E1

H7

G6

G5

E5

E4

G3

E7

G7

H5

F5

F4

F3

E2

F2

E6

B4

F6

B3

A3

C2

A2

D2

D1

C1

B6

H8

G1

A8

C8

C7

B1

B7

A7

D8

D7

C5

B5

A5

C4

D3

C3

A1

U28

E39

E33

1

2

J4

R122

R141

R138

R140

K15

L14

C11

C6

D6

B6

A6

A5

B5

A4

B4

D8

C7

E7

F7

B8

E8

C9

E9

N15

N14

H15

D14

E13

J13 K12 J12

C4

D4
A3

C3
B3

A2

C8

F9
A8

A7
B7

F8

B11

B9

A10

A9

D10

E10

R14

R8

P13

N13

M10

A11

P15

K14

M14

P12

G11

A12

L12

D3

C2

A1

B2

B1

C5

G15

F15

G12

F14

H11

E14

E15

N9

H13

G14

H12

G13

J10

E11

R5

P10

P9

B10

C13

C12

B15

B14

A15

A14

B13

A13

F13

F12

D15

C14

D13

E12

D12

B12

R10

H14

J11

D11

L15

M15

L9

M5

R4

R3

N4

R12

N11

P11

N12

N5

N6

R6

P7

P8

R9

C1

E3

R11

E4

F3

F4

G3

G4

H4

H3

H5

J3

J4

L8

K4

L4

L3

M1

M2

P1

M3

N3

R2

M4

K10

N10

L7

M7

N7

K3

M8

N8

C10

F10

P14

R13

M12

K11

J14

J15

K13

M9

L2

N1

N2

R1

P2

P3

P4

D2

D1

E2

E1

F1

P5

F2

G2

G1

H2

H1

J1

K1

J2

K2

L1

P6

R7

U26

C91

C64

C81

R144

R132

R119

R134

C95

C94

C74

C71

R139

C84

C77

Y2

R136

R135

CR8

Q22

1

2

LS1

2

1

S18

2

1

S11

2

1

S17

2

1

S7

2

1

S3

2

1

S14

2

1

S16

2

1

S13

2

1

S6

2

1

S10

2

1

S8

2

1

S9

2

1

S12

C88

C87

2

1

S15

G5

J1

D1

E6

E1

D6

B2
A2

A1

C1

B1

G6

F6

F5

E5

D5

C6

G1

F1

F2

E2

D2

C2

C5

B6

A6

J2

B5
J3

H3

H2

D4

C4

C3

B4

B3

H6

A5

G2

H1

D3

E4

F4

F3

G4

G3

H5

H4

A4

A3

U25

G5

J1

D1

E6

E1

D6

B2
A2

A1

C1

B1

G6

F6

F5

E5

D5

C6

G1

F1

F2

E2

D2

C2

C5

B6

A6

J2

B5
J3

H3

H2

D4

C4

C3

B4

B3

H6

A5

G2

H1

D3

E4

F4

F3

G4

G3

H5

H4

A4

A3

U27

1.00K

1.00K

1.00K

NOLOAD

1.00K

NOLOAD

NOLOAD

NOLOAD

NOLOAD

NOLOAD

NOLOAD

KEY_03

KEY_04

MC9328MXSCVF10

1.00K

1.00K

DVSS

1.00K

1.00K

KEY_09

1.00K

1.00K

1.00K

DVSS

BEEP

BAS16

VBATT

3V_SW

3V_MODE

1V8_MODE

HIBEAM*

KEY_06

KEY_07

10.0K

PSRAM32_CS*

LSCLK

LCD_M

LCD_LP

LCD_FLM

NOLOAD

DVSS

1.00K

3B3

MSP_CS*

MXS_IRRXD

3V_SW

KEY_13

NOLOAD

FLAT-FLEX

NOLOAD

ENET_CS*

EB3*

OE*

MXS_TIN

RESET*

WE*

A<1..3>

D<0..15>

FLAT-FLEX

2643628

1

2

0

3

2

1

4

3

100K

HEADER

KEY_04

DVSS

DVSS

1.00K

1.00K

1.00K

1.00K

A<1..24>

LD<0..3>

CONTRAST

MMBT3906

4.99K

DVSS

5%

10M

499K

499K

+1.8V

MMBT3904

PC28F640

+1.8V

LPV7215

32.768KHZ

2%

50V

22P

RESET*

22P

NOLOAD

DVSS

KEY_03

KEY_02

KEY_13

KEY_14

0.01U

NOLOAD

DVSS

NOLOAD

0.01U

NOLOAD

0.01U

NOLOAD

0.01U

KEY_09

KEY_10

KEY_06

KEY_11

KEY_07

KEY_12

KEY_08

DVSS

0.01U

NOLOAD

DVSS

0.01U

NOLOAD

0.01U

DVSS

NOLOAD

0.01U

DVSS

DVSS

0.01U

NOLOAD

DVSS

0.01U

NOLOAD

3V_SW

SFH2500FA

DVSS

2

11

12

13

DVSS 3V_SW

MXS_TDO* MXS_TDI MXS_TCK MXS_TMS

MXS_TRST*

50V

2%

NOLOAD

NOLOAD

EB1*

+1.8V

A<1..22>

DVSS

DVSS

DVSS

+1.8V

SFH426

INFRARED

50V

5%

10P

100K 0.001U

50V

50V

0.01U

100K

100K

100

BAV99

2.80K

MXS_IRTXD

KEY_08

DVSS

+1.8V

16

4

MODEL_A

MODEL_B

WE*

HEADER

DVSS

MXS_TIN

3V_SW

DVSS

DVSS

+1.8V

DVSS

MXS_TDI

MXS_TDO*

LCD_OFF

+20V

LCD_V1

LCD_LP

LD<0..3>

PSRAM32_CS*

DVSS

LCD_V3

LCD_V4

LCD_M

AGND

KEY_14

KEY_12

KEY_11

KEY_10

KEY_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

13
15

11

5

6

2

FLASH_CS*

EB2*

OE*

ENET_CS*

A<1..24>

24

23

22

21

20

19

18

15

14

12

11

10

9

7

8

6

3

4

1

2

31

30

29

28

27

26

25

23

21

22

20

19

18

17

15

14

9

8

7

6

5

3

2

1

0

18

11

7

OE*

15

9

7

6

2

1
3
5

8
10
12
14

3

2
4

5

8

9

11

10

13

12
14
16

15
17
19
21

22

16
18

17
19
21

20

23

22
24
26

25

28

2

3

4

5

6

9

7

8

11

14

12

13
15

16

19

17

18

21

1
3

2

12

7

11

10

30

29

8

4

13

EB1*

6

+1.8V

13

3

4

16

BEEP

BACKLIGHT

16

20

7

1

0

3

0

DVSS

MODEL_A

2

1

LSCLK

17

22

10

3

6

24

D<0..15>

14

MXS_IRTXD

D<0..31>

27

10

DVSS

4

EB3*

RESET*

3V_SW

POR

MXS_TRST*

1

+1.8V

8

DVSS

MODEL_B

5

13

17

10

9

5
7

6

8

9

2643628

DVSS

10
11

12

13

15

14

+1.8V

DVSS

EB3*

EB0*

VBATT

MXS_TCK

3V_SW

EB2*

DVSS

DVSS

14

LCD_OFF

5

DVSS

0

DVSS LCD_FLM

3V_SW

+1.8V

+1.8V

DVSS

LCD_V2

2739499

FLAT-FLEX

0.0

0.0

10.0

2.4KHZ

OE*

FLASH_CS*

RESET*

3V_SW

DVSS

3V_SW

DVSS

DVSS

499K

499K

DVSS

0.0

+1.8V

DVSS

+1.8V

DVSS

DVSS

100

2.80K

MXS_IRRXD

OPA364

KEY_05

3V_SW

10M

5%

+1.8V

16V

20%

1U

20%

16V

1U

1U

20%

16V

1U

20%

16V

16V

16V

16V

16V

16V

16V

0.1U

0.1U

0.1U

0.1U

0.1U

0.1U

D<0..31>

20
22

DVSS

NOLOAD

NOLOAD

0.01U

MT45W2MW16

0

0.01U

DVSS

KEY_01

NOLOAD

NOLOAD

0.01U

0.01U

4A5

3B3

5B5

5A5

5A5

3B3

3B3

3B3

3B3

5B3

5B3

5C4

4A6 3B3

3B2

5C6

5A3

5C5

5B5

DVSS

4

10.0K

10.0K

10.0K

10.0K

10.0K

10.0K

10.0K

DVSS

OUT

OUT

OUT

IN

IN

OUT

OUT

OUT

IN

IN

IN

OUT

OUT

IN

IN

IN

IN

IN

OUT

OUT

OUT

OUT

-

+

V-

V+

GND

V+

DQ10

VCC

VCCQ

WAIT

DQ14

DQ13

DQ3

VCC

DQ12

DQ11

DQ8

CLK

ADV

VSS

VSS

VSS

VSS

VCCQ

VCCQ

VPP

RST

A18

DQ15

DQ9

DQ1

DQ0

DQ4

DQ2

DQ6

DQ5
DQ7

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15
A17

A16

A20

A19
A21

A22

A23

A24

A25

CE
WP

OE

WE

EB2 EB3

EB0

OE

A7/MA6

CS0

PC16/SPI1_MISO

PC17/SPI1_MOSI

EXTAL32K XTAL32K

EXTAL16M

TRST

TRISTATE

BOOT3

POR

RESET_IN

RESET_OUT

CLKO

XTAL16M

TDO TDI TCK TMS

BIG_ENDIAN

RW

ETMTRACEPKT7/ECB

ETMTRACEPKT6/LBA

ETMTRACEPKT5/BCLK

TMR2OUT/PD31

PWMO/PA2

TIN/PA1

I2C_SDA/PA15

PB26/USBD_VPO

PA13

PA12

PA10

PA11

PA14

ETMTRACEPKT4/PA17

PB25/USBD_VM

PB8

LSCLK/PD6

UART2DTR/REV/PD7

UART2DCD/CLS/PD8

UART2RI/PS/PD9

UART2DSR/SPL_SPR/PD10

ACD/OE/PD12

LD15/PD30

LD14/PD29

LD13/PD28

LD11/PD26

LD12/PD27

LD9/PD24

LD8/PD23

LD10/PD25

LD6/PD21

LD7/PD22

LD4/PD19

LD3/PD18
LD5/PD20

LD1/PD16

LD2/PD17

LD0/PD15

FLM/VSYNC/PD14

LP/HSYNC/PD13

CONTRAST/PD11

D16

D15

D23

A8/MA7

D20

MA11

DQM2

DQM1

DQM0

A24/ETMTRACESYNC/PA0

A23/ETMTRACECLK/PA31

A22/ETMPIPESTAT2/PA30

A21/ETMPIPESTAT1/PA29

A20/ETMPIPESTAT0/PA28

A19/ETMTRACEPKT0

A18/ETMTRACEPKT1

A17/ETMTRACEPKT2

A16/ETMTRACEPKT3

A15/SDBA4

A14/SDBA3

A13/SDBA2

A12/SDBA1

A11/SDBA0

A10/MA9

A9/MA8

A6/MA5

A5/MA4

A4/MA3

A3/MA2

A2/MA1

A0

A1/MA0

EB1

CS1

CSD0/CS2 CSD1/CS3

D31

D30

D29

D28

D26

D27

D25

D24

D21

D22

D18

D19

D17

D13

D14

D11

D12

D10

D9

D7

D5

D4

D3

D2

D1

D0

CS5

DQM3

CS4

D8

D6

MA10

SDWE*
SDCKE0

SDCKE1

SDCLK

RAS

CAS*
RESET_SF

PB14/SSI1_RXFS

PB15/SSI1_RXCLK

PB16/SSI1_RXDAT

PB17/SSI1_TXDAT
PB19/SSI1_TXCLK

PB18/SSI1_TXFS
PB20/USBD_AFE
PB22/USBD_RCV

PB21/USBD_OE
PB23/USBD_SUSPND

PB24/USBD_VP

PB27/USBD_VMO

PB28/UART2_CTS

PB29/UART2_RTS

PB30/UART2_TXD

PB31/UART2_RXD

PC12/UART1_RXD
PC14/SPI1_SCLK

PC13/SPI1_RDY

PC3/SSI0_RXFS

PC4/SSI0_RXCLK

PC5/SSI0_RXDAT

PC6/SSI0_TXDAT

PC7/SSI0_TXFS
PC9/UART1_CTS

PC8/SSI0_TXCLK
PC10/UART1_RTS

PC11/UART1_TXD

PA3
PA5

PA6

PA4

PA8

PA7
PA9

PB9

PB10

PB11

PB12

BOOT1 BOOT2

I2C_SCL/PA16

PB13

BOOT0

PC15/SPI1_SS

DQ9

WE

OE

DQ6

A17

A12

A13

A14

DQ10

DQ14

DQ12

DQ11

DQ0

DQ4

DQ2

DQ5
DQ7

A1

A0
A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A15

A16
A18

DQ3

DQ1

DQ15

LB

UB

CLK

WAIT

CE

CRE

ADV

VSSQ

VSS

VCC

DQ13

DQ8

A19

A20

VCCQ

DQ9

WE

OE

DQ6

A17

A12

A13

A14

DQ10

DQ14

DQ12

DQ11

DQ0

DQ4

DQ2

DQ5
DQ7

A1

A0
A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A15

A16
A18

DQ3

DQ1

DQ15

LB

UB

CLK

WAIT

CE

CRE

ADV

VSSQ

VSS

VCC

DQ13

DQ8

A19

A20

VCCQ

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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