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Service information

EC-2002 Soldering station

WELLER



WARNING
THIS IS NOT ORIGINAL INFORMATION FROM WELLER. THEREFORE THE AUTHOR CAN NOT BE HELD RESPONSIBLE FOR ANY MISTAKE.

FOR INFORMATION ONLY

Weller EC-2002 CONTROL PCB

80 21 10,5 52

10 10 4,5

120K 10n/630 150n/100 1N4004 1N4004 178K 100E R1 C1 C2 D1 D2 R4 R3 P1 R2 P2 2K5 4K02 2K5

SL443A

100E 150n/100 330K 330K 3K48 8K2 1N4004 1K

TIC225M
240E / 1W
.47 78L005

100E 10K
LM358N U1

120K 0E 1N4004 5K6 220u 16V

22n/400

1K 5K6

R7 C3 R8 R9 R10 R11 D3 R12
U4
C4

U3
R13 R14 R15 R18 C6 D4 C5

R5 R6
U2

R17 R16

587 03 700

1

2

3

4

5

6

D

D

2 P1 2K5

R3 3 100, 1% P2 2K5 5 4 3 2 1 LEAD

R2 4K02, 1%

R4 178K, 1% V+ 1K 8 2 U2A 1 3 LF353N(8) 4 LD1 R6 10K 2 D3 GREEN C D R12

BLACK VIOLET WHITE 4 5 PL1 3 2 1 GRAY GRAY

R16 4 5K6 D4 1N4004 2 1 1 R10 3K48, 1% R17

VCC 1K, 1%

C

R13 240 1W V+ V+ U4 3 Vin GND +5V 1 Red 4 330K 1 C6 C4 1 P3 2 2K5 Pink 8K2 8 330K C3 150nF / 100V 100V 150nF R1 C2 120K B R11 0.47uF / 50V W 2 5 6 LF353N(8) CD CT R8 SL443A 6 7 5 Brown R5 B 100 D2 1 2 1N4004 1 D1 2 1N4004 VCC C B A GRAY WHITE R14 R15 5 C5 120K 0 22nF / 400V 1 2 3 VCC GRAY 24V TR 12V 0 230V~ SW1 F1 1A C1 10nF / 630V 1 R9 8 R18 U1 POT. CS 5K6 U2B 7 2 AC INP. U3 4 R7 100 COM. TIC225M 1 2 3 4 5 DISPLAY PCB 3 1 1N4004

MC78L05CP 220uF / 16V VCC 2

TRIAC R (+7V)

POWER A Title Weller EC-2002 Temperature control Size B Date: File: 1 2 3 4 5 Number [email protected] Revision V1.0 A

3

E

9-Jun-2003 Sheet of C:\Program Files\Design Explorer 99 SE\My designs\WELLER\Weller.Ddb Drawn By: 6

Weller EC-2002 DISPLAY PCB

3.5 5,5 8 58 23 43,5 33,5

71 10 24,5 32

13 15 45
BC327 BC327 BC327

30 29

150n/100

CA3161E

CA3162E

50K

10K

MAN71A MAN71A MAN71A 1u 1u

BC337

17K8 17K8 2K43

10K

200K 200K 270E

10K

U1

U2

470U / 25V
T1
Dp1 C2 C3

1N4004 1N4004

7805

1u

T2

T3

P1 C5

P2 R1 R2 R3

Dp2

Dp3

P3

T4

R6 R5 R4

R7 Sw1

D2 D1

C1

U3

C4

587 03 802

1

2

3

4

5

6

D

A D R5 200K, 1% R6 +5V 200K, 1%

+5V D

T3 BC327

T2 BC327 P2 10K READ SW1 R1 C CONTROL PCB 5 4 3 2 1 17K8, 1% R2 17K8, 1% 6 11 10 SET P3 10K ZERO ADJ. P1 50K T1 BC327 C5 150nF 100V 8 9 12 14 16 14 14 14 3 3 3 1 13 10 8 7 2 11

U2 ADJ ADJ CAP V+ 5 3 4

U1 a b c d e f g 13 12 11 10 9 15 14 1 13 10 8 7 2 11 V+

LSD NSD SPEED MSD Hi IN Lo IN BCD-3 BCD-2 BCD-1 BCD-0 CA3162E 7 13 GND GAIN

DP1 CA CA a b a c d f g b e e c f d g dp dp MAN71A 9

1 13 10 8 7 2 11

DP2 CA CA a b a c d f g b e e c f d g dp dp MAN71A 9

DP3 CA CA a b a c d f g b e e c f d g dp dp MAN71A 9

C

CA3161E 8 R4 270

C3 1uF

R3 2K43, 1%

GND

16 15 1 2

6 2 1 7

BCD-3 BCD-2 BCD-1 BCD-0

B E

GND D2 1N4004 C2 1uF, tant R7 10K 2

1

B T4 BC337 3 GND

+5V D1 B 1N4004 C1 A 470uF / 25V C GND 2 1 U3 Vin GND Vout 3 C4 7805 1uF, tant Title Weller EC-2002 DISPLAY PCB Size B Date: File: 1 2 3 4 5 Number [email protected] Revision V1.0 A

9-Jun-2003 Sheet of C:\Program Files\Design Explorer 99 SE\My designs\WELLER\Weller.Ddb Drawn By: 6