胜利牌万用表电原理图VC9807A+ (1)

胜利牌万用表电原理图

1 V+ RD1 1K DD2 4007 DD1 4007 RC2 39.2KJ RC1 39.2KJ CC2 3 RC5 2 10K V+ IC4A

2

3

4

5

6

DVcc D

0.01uF IC4B 7+ TL062 RC4 4.11K CC1 RC3 0.01uF 1.91KJ 5 6

+ -

1 DC1

CIN Cntc2 DC2 DC3

5 6 DC4

RC6 100 VRC 200

IN4007 IN4007 IN4007 IN4007 Cntc1

RC9 11K

4

4

TL062 V_

IC5B+ TL062

CC3 3 0.01uF 7 RC8 2 76.8K

+ -

1 TL062 V_ RC10 168KJ CC4 0.01uF Cout

V+ IC5A

8

RBP1RBP2 RBP4 RBP3 RBP5 RBP7 RBP8 RBP9 RBP10 RBP12 RBP14 VC9806A++ RBP11 RBP13 RBP15 1M 1M 1M 1M 1M RBP6 1M 1M 1M 1M 1M 1M 1M 1M 1M 1M

8

R1 1M RHO H

D

PTC1 S122 S124 CIN S125 3D V/R/Hz 1.5K PTC2 500

Cntc1 RCS3 9.8 FD

RCS2 990

RCS1 99K S87 S117 S88 1D S89 1D S90 1D S91 1D S92 1D S93 1D S94 1D S95 1D S96 R_1D Cntc2 S118 S129 S75 3D DVccD/B out 3D 3D S59 S119 S76 1D 1D 1D R+ V+ S61 5D ROH3 1MJ 6D S77 5D 1D S79 V+ ROH1 990K S66 5D ROH2 S67 1D 10KJ S68 1D K3NPN E B C E E B C E

2 4 1/2 LCD S74 S73 mA S128 3D FE D/B in S65 1D V+ S64 S63 IN+ S58 S57 S120 S121 ACin Cout nF uF S33 S34 V+ S1 S32 S31 S2 S3 S4 S5 S6 S7 S8 S38 M PNP

20

200

2000

1M

20nF 2uF 200uF DIODE/BEEP 200 2K 20K 200K 2M 200M hFE 8 200mV 2V 20V 200V 1000V 700V/AC 200V/AC 20V/AC 2V/AC nS 200mA/AC 20A/AC 20A 200mA 20mA 2mA 200uA 20KHz 200KHz 3 2 IC2 LM385

V+ 1 REF3 10K REF4 3K VREF REF2 470K 1K REF5 14KJ V+ R+ REF1 100K R_ REF6 220K CREF2 0.22uF CREF ROS1 90.9KJ 40 COS1 51P CREF1 0.22uF 104 2 34 35 29 30 28 IN+ RIN 1M CINT RBUF C2 33uF C1 33uF 33 CIN 473 104 32 26 OSC1 OSC2 OSC3 VREF+ VREFCREF+ CREFCOM IN+ ININT BUF INT VV+ TEST DP1 DP2 DP3 DP4 H CON ANN BP1 DGND VDISP 22 27 3 18 36 1 2 3 V+ K4 6 5 4 IC1 7129A C

RRIN FE 10K RR1 10MPZ 1

V+ DH1 4007 DH2 4007 C S126 7D S127 1D

S60 4D RhFE4 1K FD RhFE1 270K S62 6D

S51 S50 V+ 3D 3D 1D 1D S53 S52

S35 DIODE S36 S37 K

VR1 511

VR2 511

S9 S10 S11 S12 S13 S14 S15 S16

COM

VR3 821

1D 1D S97 S116

TR1 9013

R_ CR1 104

RA1 900K RA2 900K

FUSE2 12A/250V 20A

V+

RA3 180K RA4 18K RA5 1.8K RA6 200 RIS5 900 RIS4 90 RIS3 9 RIS2 0.99 RIS1 0.01

B

mA

F1 200mA/250V mA

S98 1D S99 FD 1D VIN+ VIN+ S100 1D D S101 1D S102 RnS1 1D 5D 5D 5D 4D 30KJ S103 1D V+ S104 VRnS ACin 1D RnS2 S105 5K 100K 1D 9D 4D S106 mA 1D 4D D FE S107 S114 S70 1D 1D 1D 1D 1D ACin S108 S85 S81 1D S109 S82 S71 1D 2D 2D S110 mA 1D S111 1D S112 1D S113 1D S84 S83 S72 7D 5D 1D 7D 5D FD 2D 2D 2D

HFE

R_

5D

5D

hFE mV

S39 S40 S41

RhFE2 270K

RhFE3 10 AC AC V

+ -

IC3A 1

V_ TL062

4

6

S17 S18 S19 S20 S42 S43 S44 S45 S21 S22 S23 S24 S25 S26 mA S27 S46 S47 S28 S29 S30 30D 30D V+ RB5 2M

150K 31 25

HOLD

V_

23 C3 47uF 24 37

4D

4D

nS mA

2D

2D

A

RDIP 1K RDP4 47K RDP3 47K

T1 9013

39

38

21

20

19

B

S55 S54 S56 1D 30D 20D 30D 1D 2D

uA KHz

30D19D DP4 4007

BAT+ DP1 V+14

V+ CP2 104 IC8A 1+ TL062 RP4 100K 8

8

DP3 4007 ACout VRF1 CF1 0.1uF RF3 100K V+ 8 3 2+ IC10A 15 6 V_ TL062 V+IC6B14 3 5 6 4

TP1 9015

RB4 10M

4

RF6 62K V+ RF8 47K 2 RF9 47K 4 IC7 7555

RF7 4.12KJ VRF2 2K 8 6 7 3 1

3 2 D/B out RB3 100K RB1 CB1 RB6 TL062 910K 104 47K D/B in RB2 100K 1 2

3 RF5 20K CF3 100PF RF4 10K CF5 0.22uF

RB9 IC11A 1M 1 1+ 2

IC9A3

5 6

IC9B4

8 9

IC9C10

12 13

IC9D11

1 2 3 BZ AC+

K1

6 5 4

IN4148 RP1 3 1M 2

TP2 9013 DP2 IN4148

RB7 100K

7

20K

A

ACin RAC1 100K

5 6

IC3B+ TL062 RAC2 22M CAC1 0.01uF

7

CAC2 1UF

IN4148

10KJ RAC5 220K VRAC 200 CAC3 1UF

DF1 IN4148

DF2 IN4148

RAC6 4.53KJ

RF2 10K

4

IC10B+ TL062

IC6A 71 2

CF4 10PF

B/L

TL2 9014 Title RL3 390 TL3 9014 Size B Date: File: 5

IN4148 TL062

4011

V_ 4011

7

CF2 100PF

20K V_ LED B/L

Number

21-Dec-2009 Sheet of Drawn By: E:\Program Files\PCB数据库\新9806系列吴鹏.ddb 6

1

2

3

4

+ -

DAC1 RAC3 IN4148 10KJ DAC2 RAC4

RF1 220K

K2

CB2 220P RB8 470K BAT+

CP1 47uF IC8B

BAT RP2 RP3 9V 10M 220K 6 5 RP7 100KG4 RP6 RP8 100K COM2 100K

4

4011

V_

4011

4011

4011

POWER

RP5 20K

V_ DP5 7

6 V+ 5 RL1 4 CL1 220K+ 4.7uF RL2

A

深圳胜利高电子科技有限公司vc9807A+ Revision v1.0

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