胜利VC9802A数字万用表电路图及使用说明书

该电路图是我维修万用表时,网上查找资料未到而自己化了一个多月时间按电路板手工绘制的。对维修绝对有用。

9& $ 9& $ 9& $

2

2-1

9V

5

1-11

:

(

5%

TP01

(23

200V

1000V

(40~400)Hz700V

(40~200)Hz

26 mm

LCD

A/D

IEC1010

11000V

236V

36V

3

4

520A

6

1

1-1

1-219993 1/2

1-3

A/D

1-43

1-51

-1

1-6

1-7(040)

<80%

1-89V

NEDA1604/6F22

1-9

19088.527.5 mm

1-10

320g

9V

700V

25V

200mV

250V

1000V

200mV

250V

20A

10

0.2A / 250V

20A

20A

10

0.2A / 250V

20A

(40~200)Hz

:

该电路图是我维修万用表时,网上查找资料未到而自己化了一个多月时间按电路板手工绘制的。对维修绝对有用。

a

b

200

200 M

250V

3V

101.0M

1.0

1.0M

100M

101.0 –

(

1

)

2-3-10.

2-2B/L

hFE NPN

2-1POWER

PNP

hFE

0 ~ 1000

10uA Vce

3V

31

4

2

1

700Vrms

1.0 = 100.0M

250V

(

15

)

2-3HOLD

H

H

3

hFE

hFE

4

5

(Cx)

VC9804A+

(TEMP)

6

7

8

200mAVC9801A+

2A

920A

1

COM

V//Hz

2

DCV

1

21

3

1000V

4

1COM

V//Hz

2ACV

1

200mA

20A

2

1

2

LCD

3()

1

200mA 20A

2

1

2

LCD

3()

12

1

COM

VC9801A

+

2A

DCA

1

200mA

VC9801A+

COM

VC9801A

+

2A

ACA

1

200mA

VC9801A

+

COM

1M

mA

20A

2A

20A

20A

mA

20A

2A

20A

20A

V//Hz

1

该电路图是我维修万用表时,网上查找资料未到而自己化了一个多月时间按电路板手工绘制的。对维修绝对有用。

(

2

314

VC9804A

+

mA

Cx

V/ /Hz

2

1

3

18

18

2

1

2LCD

34(

)

hFE

1hFE

2NPN

PNP

1COM

V//Hz

+

2

3(7020)

1

COM

V//Hz

2

110Vrms

2

3

4

250V

TEMP

1

(2010)

B/L

POWER

SPE-9804A+-10100

该电路图是我维修万用表时,网上查找资料未到而自己化了一个多月时间按电路板手工绘制的。对维修绝对有用。

1

2 1N4007 DC2 DC1 CX

3交流即时Wa-G Wa-F Wa-E R44

4

A_21

hFE RC04 A_1R22

A BG_2

REFC DB_1 C_1 D_1

E_1

E

REF+ InF COM GG_1 R23

U+ IC5 2904D JRC1212G U-

In+ HH_1

RC4 4.11K

RC3 1.91K

I In+B_4

J

K COM InDC4 DC3

IC1-2 IC1-3 IC1-4 IC1-5 IC1-6 IC1-7 IC1-8 IC1-9 IC1-10 IC1-11 IC1-12 IC1-13 IC1-25 IC1-14 IC1-15 IC1-24 IC1-16 IC1-23 IC1-17 IC1-22 IC1-18 IC1-19 IC1-20

Wa-A

DC01

In-

REF-

A

A_22

R16 9Ω R18 0.99Ω

R15 A_20 90Ω

T1

R13 R11 R10 R9

A_2 A_3 A_4 A_5 A_6 A_7 A_8 A_9

200Ω 2K

hFEF_1 PTC3

RC6 200Ω RC8 76.8K RC11 RC9 11K RC12 90KA_29 A_30

RC5 1K ULM358N A9320 IC6 B_8 U+

RC1 39.2K 168K RC10

RC2 39.2K

A

hFED_2

20K 200K 2M 20M 200M hFE

hFE R27B_2C_2

In-

J_1 IC2_7

Wa-B Wa-C Wa-D

REF+

IC1-21

G_2 R39 B_1

20AR8D E_4 R8A E_3 R14 R30 B_7

E_6

RC13 9KA_31

RC14 990ΩA_32

RC7 9.5Ω R36 UD4Wa-A

C_3 R24

G_3E_2

21 22 23 24 25 26 27 28 29

200mV 2V

In+

H_1 D_3 C_4

mA B D2

InCOME_3 R8A A_7

REF20V 200V 1000VB_5 G_6 G_4 T1

47uF,16V10M C10 Sw1 off on V+ 9V R35 200KWa-D

30 31 32 33 34 35 36 37 38 39 40 REF+ REFIn+ In100nF,104J C1 100VD_2

U+

R24 hFE

900KA_28

20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

U+

B_3 B_4

IC1U-

ICL7106

100pF

UG_4 B_5

R37 ULM358N 100K 94B348 IC2 U+ In-

R1 100K

B

100nF,104J 100V

T2 D3 U+ R38 33K T3 R2 47K

D1 700V~ InDC2(CX) R25(hFE) COM InC9013 H.230 T1 REFC_1

R34 1M

R7 1MH_1

R6 10K R5 200K R3 11.5K

COM

200V~ 20V~ 2V~ 200mV~A_20 R15 R16 R18 A_21 A_22 B_6 RAC1 F_2

R40 1M R41 1M R42 1M

R33 1M/10K R32 J_1 1M on U+

COME_4 A_6 R8D

R4 UC11 33uF,16V 310Ω U+ C12 33uF,16V D_1 InCOM

C_1

U+

Wa-C Wa-B

VR1

C9 104J,100V CA_7 E_3

2mA~Wa-E

R13 A_2 R12 1K 100Ω

20mA~B_7 mA G_5 RAC8 F_2 RAC1 B_6 I_1

R44 1M

IC1-21

off 1MWa-F

Sw2即时测量开关IC1中部即时测量输入

CAC3

G_5

U+ RC07 56Ω

DAC2 RAC7 10K RAC6 10K U+B_6

R8A 2.25M

R11 9KA_4

20A~ 20A 200mA 20mA

A_5

22M RAC2

A_3

200mA~

CAC2 1uF,50V

RAC8 2M

C

U-

G_6 F_3B_5 A_8 G_3 E_5 A_1 G_7 F_4 RAC1 B_6 C_3

Bell TC01 KEL 1N4148 DC03

R14 1M

R8B 2.25M

R10 90K

InCOM VR2 RAC1 100K R29 210K R30

2mARC11 RC12 A_30 RC13 A_31 A_28 A_29

CAC1' RAC9 100nF,104J,100V U4.58K IC3 22A7NCM TL062CP RC02 47K CAC1 RC03 100K RC01 2M RC04 10M

DC04

PNP

R8C 2.25M R8D 2.25M R39 D VΩ 10K PTC3 0.3M

R9 900KA_6 E_4

2nFB_8 E_6 IC6_1

InCOM R23 100K DC02 1N4007

R25 10K D5C_2 B_2

R24

C E

B E

990K R27 6.8K

COM In-

20nF 200nF 2μF 200μF

IC6_6

R22 900KG_1

U+

E C B

E NPN

G_2 B_1

RC14 A_32 RC7

10Ω 100nF,104J,100V A_1

Title RC05 DC01 1N4007 1KA_9

E_1 F_1

R28 210K

*注：稳压管均为KEL 1N4148 Size A4 Date: File: 2011/06/02 D:\Internet\..\胜利 VC9802A.SCHDOC Sheet of Drawn By: 4 Number Revision

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sw3刀盘旋转开关 1 2

3

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