EPSON FX-890/2190
Revision B
Disassembly and Assembly
Main Components Disassembly
74
4.2.3 C524MAIN Board
1.
Perform Pre-Disassembly. (p.70)
2.
Remove the Upper Housing. (p.72)
3. Remove 5 CBS (M3x6) screws and 2 CBP (M3x12) screws securing the shield
cover to the Printer Mechanism and lower housing. Then remove the shield cover.
4. Disconnect all the connectors connected to the C524MAIN board.
Figure 4-8. C524MAIN Board Removal 1
Figure 4-9. C524MAIN Board Removal 2
C A U T I O N
The C524MAIN board has the mechanical drive power supply
voltage (+42V, Vp) management circuit and an electrical
characteristic of the components composed of this circuit is
measured with the custom instruments and regulated at the
assembly process. Never attempt to replace any components of
this circuit on the board, and doing so resulted in damaging the
unit.
Be careful with the edges of the shield plate, as they are very
sharp.
Be sure to match the connector colors with each other.
Table 4-4.
CN No.
Pins
Color
Connected to
CN5
2
Blue
PG Detector
CN6
2
Black
Front PE Detector
CN7
3
White
Rear PE Detector
CN8
2
White
HP Detector
CN11
2
Yellow
Release Detector
CN12
5
Red
CR Motor
CN13
4
White
PF Motor
CN14
10
-
C524PSB/PSE/PSH Board
CN15
(FPC)
Printhead
CN16
(FPC)
Printhead
CN19
2
White
Fan
CN20
(FPC)
Panel
CBS Screws (3x6) x5
Tightening Torque: 0.58-0.78 N.m
Shield Cover
CBP Screws (3x12) x2
Tightening Torque
: 0.78-0.98 N.m
No screw here
(Screw for tightening the
Upper Housing together
must be installed later)
Содержание 890N - FX B/W Dot-matrix Printer
Страница 1: ...EPSONFX 890 2190 Serial Impact Dot Matrix Printer SEDM02003 SERVICE MANUAL ...
Страница 8: ...C H A P T E R 1 PRODUCTDESCRIPTIONS ...
Страница 43: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 52: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 65: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 93: ...C H A P T E R 5 ADJUSTMENT ...
Страница 98: ...C H A P T E R 6 MAINTENANCE ...
Страница 104: ...C H A P T E R 7 APPENDIX ...
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Страница 116: ...FOR FX 890 NO 2 R ev 01 C524 E LE C 01 A A B J C B C H E F I K L M G D D 300 450 372 200 400 350 ...
Страница 118: ...FOR FX 890 NO 4 R ev 01 C524_PACK_01 03 01 06 04 04 xx 07 02 02 02 05 05 ...
Страница 120: ...FOR FX 2190 NO 2 Rev 01 C526_ELEC_01 A A B G D E J F F K L B I F H 200 400 373 330 372 450 ...