Schema Mainboard Epson Lq 2180

A.1 CONNECTOR PIN ASSIGNMENTS A-1

A.2 CIRCUIT DIAGRAMS A-9

A.3 COMPONENT LAYOUT A-21

A.4 CONNECTOR JUNCTION BOARD CONNECTORS A-27

A.5 PART LIST A-28

A.6 EXPLODED DIAGRAMS A-31

a.1 connector pin assignments

Figure A-1 illustrates the interconnection of the primary components. Table A-1 summarize the description and sizes of the connectors.

Encb Switches
Figure A-1. Cable Connection
Table A-1. Board Connector Summary

Connector

Connection

Pin Number

Table to Refer

C204 MAIN Board

CN1

=> Mechanism (Print head)

30 pins

Table A-2

CN2

=> C204 DRV-B board

20 pins

Table A-3

CN3

=> Cover Open

2 pins

Table A-4

CN4

=> Mechanism (Carriage encoder)

4 pins

Table A-5

CN5

=> Panel unit

14 pins

Table A-6

CN6

=> C204 PSB/PSE board

6 pins

Table A-7

CN7

=> C204 PSB/PSE board

12 pins

Table A-8

CN8

=> C204 DRV-B board

8 pins

Table A-9

CN9

=> Optional paper cutter

7 pins

Table A-10

CN10

=> C204 PSB/PSE board

8 pins

Table A-11

CN11

=> Optional Type-B I/F card

36 pins

Table A-12

CN12

=> IEEE-1284 I/F

36 pins

Tables 1-10 an 1-11

CN13

=> EIA 232D I/F

7 pins

Table 1-12

CN14

=> C204 DRV board

50 pins X 2

Table A-13

CN15

=> C204 SUB board

6 pins

Table A-14

CN16

=> C204 SUB board

7 pins

Table A-15

C204 DRV Board

CN1

=> C204 MAIN board

50 pins X 2

Table A-13

CN2

=> Printer mechanism

50 pins

Table A-16

CN3

=> C204 PSB/PSE board

6 pins

Table A-17

C204 DRV-B Board

CN1

=> Mechanism (Printhead)

30 pins

Table A-18

CN2

=> C204 MAIN board

6 pins

Table A-9

CN3

=> C204 MAIN board

20 pins

Table A-3

C204 PSB/PSE board

CN1

=> AC inlet

3 pins

Table A-19

CN2

=> C204 MAIN board

6 pins

Table A-7

CN3

=> C204 MAIN (CN7) and C204 DRV (CN3) boards

12 pins

Tables A-8 and A-17

CN4

=> C204 MAIN board

8 pins

Table A-11

CN5

=> Cooling fan motor

2 pins

Table A-20

Pin

Signal Name

I/O

Function

1

P+10

O

Printhead pin #10

2

P-10

O

GND

3

P+12

O

Printhead pin #12

4

P-12

O

GND

5

P+16

O

Printhead pin #16

6

P-16

O

GND

7

P-17

O

GND

8

P-9

O

GND

9

P+17

O

Printhead pin #17

10

P-11

O

GND

11

P+11

O

Printhead pin #11

12

P-7

O

GND

13

P+9

O

Printhead pin #9

14

P-7

O

GND

15

P+2

O

Printhead pin #2

16

P+1

O

Printhead pin #1

17

HFANB

O

HF motor phase B

18

P-1

O

GND

19

FTMP

I

HF motor temperature

20

P-2

O

GND

21

FANCOM

O

HF motor common

22

HTMP

I

Print head temperature

25

HFANA

O

HF motor phase A

29

PWIDTH

I

Paper width signal

30

+5

-

23, 24,, 26, 27, 28

GND

-

Table A-3. C204 MAIN Board Connector CN2

Pin

Signal Name

I/O

Function

1

HR3P

O

Pr

nt head coil #6 drive signal

2

HR2P

O

Pr

nt head coil #4 drive signal

3

HR9N

O

Pr

nt head coil #18 drive signal

4

HR2N

O

Pr

nt head coil #4 drive signal

5

HR7P

O

Pr

nt head coil #14 drive signal

6

HR7N

O

Pr

nt head coil #14 drive signal

7

HR9P

O

Pr

nt head coil #18 drive signal

8

HR3N

O

Pr

nt head coil #6 drive signal

9

HL8P

O

Pr

nt head coil #15 drive signal

10

HL3N

O

Pr

nt head coil #5 drive signal

11

HL8P

O

Pr

nt head coil #13 drive signal

12

HL2N

O

Pr

nt head coil #3 drive signal

13

HL8N

O

Pr

nt head coil #15 drive signal

14

HL7N

O

Pr

nt head coil #13 drive signal

15

HL3P

O

Pr

nt head coil #5 drive signal

16

HL2P

O

Pr

nt head coil #3 drive signal

167

HR4P

O

Pr

nt head coil #8 drive signal

18

HR4N

O

Pr

nt head coil #8 drive signal

19

HRSENS

I

Pr

nt head coil shortage monitoring

20

HNSENS

I

Pr

nt head coil shortage monitoring

Table A-4. C204 MAIN Board Connector CN3

Pin

Signal Name

I/O

Function

1

COPEN

I

Cover open status

2

GND

-

-

Pin

Signal Name

I/O

Function

1

GND

-

2

+5V

-

3

ENCB

I

CR encoder B phase pulse

4

ENCA

I

CR encoder A phase pulse

Table A-6. C204 MAIN Board Connector CN5

Pin

Signal Name

I/O

Function

1

LED DATA

O

LED data

2

LED XLE

O

LED data latch

3

LED CLK

O

LED data clock

5

LED XOE

O

LED light enable

6

BUZZER

O

Buzzer

7

VCC

-

+5 VDC

9

SW INH

O

Switch data transfer inhibit

9

SW S/XL

O

Switch data shift/load select

11

SW DATA

I

Switch data

13

SW CLK

O

Switch data clock

4, 10, 912, 14

GND

-

Table A-7. C204 MAIN Board Connector CN6

Pin

Signal Name

I/O

Function

1, 2, 3

VP1

-

+37 VDC

4, 5, 6

GP1

-

GND for VP1

Table A-8. C204 MAIN Board Connector CN7

Pin

Signal Name

I/O

Function

1, 2, 3

VP2

-

+37 VDC

4, 5, 6

GP2

-

GND for VP2

Table A-9. C204 MAIN Board Connector CN8

Pin

Signal Name

I/O

Function

8, 7, 6

VP1

-

+37 VDC

5, 4, 3

GP1

-

GND for VP1

1

VX

-

+5 VDC switched by reset status

2

GND

-

Table A-10. C204 MAIN Board Connector CN9

Pin

Signal Name

I/O

Function

1

CUTON

O

Cut signal

2

CUTDIR

I

Cut direction

3

CUTTER

I

Paper cutter mount/dismount

4

CUTHPI

I

Cutter home position

5

+5V

-

6

GND

-

7

RF

I

Reverse point signal

Table A-11. Digital Board Connector CN10

Pin

Signal Name

I/O

Function

1, 2

+5V

I

3, 4

GND

O

5

DRERR

O

Head driver error signal

6

/PD

O

Power down signal

7

CL

I

Current limit signal

8

SD

I

Power shutdown signal

Pin

Signal Name

I/O

Function

1, 2, 3, 4, 5, 6

+5

-

7

BTXD

O

Transmit data

8

XREADY

O

Ready

9

BRXD

I

Receive data

10

NC

-

11

BXRST

O

Reset signal

12

INH

O

Inhibit signal output

13

XCMDREQ

I

Command request signal

14

XWRRDY

I

Write ready signal

15

XRDREQ

I

Read request signal

16

XWR

O

Write signal

17

XRD

O

Read signal

18

XCS

O

Chip select signal

19, 20, 21, 22, 23, 24

GND

-

25

A3

O

Address bus 3

26

A2

O

Address bus 2

27

A1

O

Address bus 1

28

A0

O

Address bus 0

29

D7

I/O

Data bus 7

30

D6

I/O

Data bus 6

31

D5

I/O

Data bus 5

32

D4

I/O

Data bus 4

33

D3

I/O

Data bus 3

34

D2

I/O

Data bus 2

35

D1

I/O

Data bus 1

36

D0

I/O

Data bus 0

Pin

Signal Name

I/O

Function

1

VP3

-

+37 VDC

2, 3, 4

GND

-

5, 6, 7, 8

+5

-

9, 10

VX

-

+5 VDC switched by reset status

11

FAN

O

HF control signal

12

PLN

O

Plunger N channel

13

RFH/R

O

RF motor common

14

RFC

O

RF motor C phase pulse

15

RFA

O

RF motor A phase pulse

16

PGD

O

PG motor D phase pulse

17

PGB

O

PG motor B phase pulse

18

CRINS

I

CR motor insulation resistance monitoring

19

CRI1

O

CR motor current limit signal 1

20

CRCLM

I

CR motor current limit signal

21

CRD

O

CR motor bridge D signal

22

CRB

O

CR motor bridge B signal

23

PFH/R

O

PF motor common

24

PFC

O

PF motor C phase pulse

25

PFA

O

PF motor A phase pulse

26, 27

GND

-

28

TR SEL

I

Tractor select signal

29

P TRCT

I

Pull tractor mount/dismount

30

P JAM

I

Paper jam detection

31

F PE

I

Front paper end

32

R PE

I

Rear paper end

33

T PE

I

Top paper end

34

PGENCB

I

PG encoder B signal

35

PGENCA

I

PG encoder A signal

36

PGHOME

I

PG home position

37

RBJAM

I

Ribbon jam

38

PLP

O

Plunger P channel

39

RFD

O

RF motor bridge D signal

40

RFB

O

RF motor bridge B signal

41

PGH/R

O

PG motor common

42

PGC

O

PG motor C phase pulse

43

PGA

O

PG motor A phase pulse

44

CRI2

O

CR motor current limit signal 2

45

CRI0

O

CR motor current limit signal 0

46

CRCLK

O

Clock pulse for CR motor driver

47

CRC

O

CR motor bridge C signal

48

CRA

O

CR motor bridge A signal

49

PFD

O

PF motor bridge D signal

50

PFB

O

PF motor bridge B signal

Table A-14. C204 MAIN Board Connector CN15

Pin

Signal Name

I/O

Function

1

DIP1

I

DIP SW1 status

2

DIP2

I

DIP SW2 status

3

DIP3

I

DIP SW3 status

4

DIP4

I

DIP SW4 status

5

DIP5

I

DIP SW5 status

6

DIPCNT1

O

DIP SW select port 1

Pin

Signal Name

I/O

Function

1

DIPCNT2

O

DIP SW select port 2

2

DIPCNT3

O

DIP SW select port 3

3

DIPCNT4

O

DIP SW select port 4

4

DIPCNT5

O

DIP SW select port 5

5

DIPCNT6

O

DIP SW select port 6

6

DIPCNT7

O

DIP SW select port 7

7

DIPCNT8

O

DIP SW select port 8

Table A-16. C204 DRV Board Connector CN2

Pin

Signal Name

I/O

Function

1, 3, 5, 8

VP3

-

+37 VDC

2

+5V

-

4

K

-

GND

6

RBJAM

Ribbon jam

7

NC

9

INTLOC

-

GND

10

FANDRV

CR fan drive

11

INTLOC

-

GND

12

INTLOC

-

GND

13

GND

-

14

GP3

-

GND for VP3

15

TR SEL

Tractor select signal

16

PGHOME

PG home position

17

RFD

RF motor phase D

18

RFCOM

RF motor common

19

RFB

20

RFA

RF motor phase A

21

PGCOM

PG motor common

22

RFC

RF motor phase C

23

PGA

PG motor phase A

24

PGD

PG motor phase D

25

PGC

PG motor phase C

26

PGB

PG motor phase B

27

PENCB

PG encoder phase B

28

PENCA

PG encoder phase A

29

R PE

Rear PE sensor

30

T PE

Top PE sensor

31

+5V

-

32

F PE

PE sensor front

33

P TRCT

Pull tractor

34

P JAM

Paper jam sensor

35

PLGP

Plunger

36

GND

-

37

CRB

CR motor phase B

38

PLGN

Plunger

39

CRB

O

CR motor phase B

40

PFA

O

PF motor phase A

41

CRB

O

CR motor phase B

42

PFB

O

PF motor phase B

43

CRA

O

CR motor phase A

44

PFC

O

PF motor phase C

45

CRA

O

CR motor phase A

46

PFD

O

PF motor phase D

47

CRA

O

CR motor phase A

48, 49, 50

PFCOM

O

PF motor common

Pin

Signal Name4

I/O

Function

1, 2, 3

VP3

-

+37 VDC

4, 5, 6

GP3

I

GND for VP3

Table A-18. C204 DRV-B Board Connector CN1

Pin

Signal Name4

I/O

Function

1

P+6

O

Printhead pin #6

2

P+4

O

Printhead pin #4

3

P-18

O

GND

4

P-4

O

GND

5

P+14

O

Printhead pin #14

6

P-14

O

GND

7

P+18

O

Printhead pin #18

8

P-6

O

GMD

9

P+15

O

Printhead pin #15

10

P-5

O

GND

11

P+13

O

Printhead pin #13

12

P-3

O

GND

13

P-15

O

GND

14

P-13

O

GND

15

P+5

O

Printhead pin #5

16

P+3

O

Printhead pin #3

17

P+8

O

Printhead pin #8

18

P-8

O

GND

19, 20

NC

-

Table A-19. C204 PSB/PSE Board Connector CN1

Pin

Signal Name4

I/O

Function

1

L

I

AC input

2

NC

-

3

N

I

AC input

Table A-20. C204 PSB/PSE Board Connector CN5

Pin

Signal Name4

I/O

Function

1

VP3

O

2

/FANDR

O

Fan motor drive

a.2 circuit diagrams

See the following pages for the figures below: Figure

Figure Figure Figure Figure

A-2. C204 MAIN Board Exploded Diagram

C204 MAIN

A-3. C204 DRV Board Exploded Diagram

C204 DRV

A-4. C204 DRV-B Board Exploded Diagram

C204 DRV-B

A-5. C204 PSB Board Exploded Diagram

C204 PSB

A-6. C204 PSE Board Exploded Diagram

C204 PSE

Epson Exploded Diagram

□FX-B500 C204MAIN BOARD

□FX-B500 C204MAIN BOARD

Cx4100 Mod

Mode 1 Board Sheet Rev- :

□FX-8500 C204DHV BOARD 1 of 1

Mode 1 Board Sheet Rev- :

□FX-8500 C204DHV BOARD 1 of 1

Dfx 8000 Power Board Diagram

ode 1 Board Sheet Rev-

DFX-8500 C204 DRV-B 1 of 1

ERA82-004

ERA82-004

Hev Model Sheet

Model Board Sheet Hev. :

DFX-Q500 C204PSB BOARD 1 of 1 D

Model Board Sheet Hev. :

DFX-Q500 C204PSB BOARD 1 of 1 D

Epson 4300

f^o CN5

□FX-8500 C204PSE BOARD

f^o CN5

□FX-8500 C204PSE BOARD

APPENDIX

A.3 Component Layout_

Encb 113 Encb 118

ICH9

TP7 TP270 i^31 i 26 O

TP 13

7P1H H

TP13 n

01 TP32 OTP20 TP17 O O OTP21 TPifiO OTP22

ICH9

Figure A- 7. C204 MAIN Board Component Layout (1)

C31J C310 C309 C309 C307 C30G C305

C213 C214 C215 C21G C217

C101IZI1

C81-II-IR220

C100I I

R201

R200

R199

R198

R197

R196

R195

R19H

g I-1C212

C120

C119

C112

C7 C118

I-ICS5

R193

CD CD

R216 C2Sl I

R192 R173 R186 R174 R175 R191 R190

I ICSI

R227 R2HM R2H5 R159

r210

r152 1

¡8

r153 f

Sim

r156 (

c182 c181 c178 c175

-

r157

j_

c177 c179

-

c17m

c173

C190

Eíicisi CDwh

I ICSI

1C168

Runga M R112

RusaoiJcb«® eil CDCD CT^f

C103

I IR1B2

Eíicisi CDwh

'Rr7

I-IRHI RiB

C110

R100 R101 R99

I iRl

C=DC129

I IR107

C108

I IRIB

C2ll CZH C130 R131

I IR30 I IR31 I IR103

i irm2 I IWH3 I IR109

C107

C123

I IR22 R23 C126

C2ll CZH C130 R131

C3B2I I

C303

I ICS9

C114 C301 RH6

HIZiCDCDCS R121I II ICS

C60l 11 I CM R123I 11 IR119 R124I II I R120

Figure A- 8. C204 MAIN Board Component Layout (2)

m Q25 022

Q»Q jQebQ

F2 012

B 013

B2H B25 A24 A25

EPSON

C204DRV «MA KSI92

Figure A- 9. C204 DRV Board Component Layout (1)

R37dH R35I I R3BI I R30I I R46l 1 (ZDR47 R48I I RH5rZI

R15 R1B

aRB R6M

I-|R22 R63

c jy acib

I IR21

C26IZZI

C29I I

r-Iii 201 CZDR20

R58 R56 R57 R55

I IC17

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