Main Controller (C172 Main Board) Removal - Epson Stylus 1500 Service Manual

Stylus 1500 Service Manual

3.2.3 Main Controller (C172 MAIN Board) Removal

1. Remove the upper housing. (See Section 3.2.1.)
2. Remove the printer mechanism. (See Section 3.2.2.)
3. Remove the cables from connectors CN4 and CN16 between the power supply unit and the C172 MAIN
board and the cable from control panel connector CN3.
4.
Remove 2 (CBS 3 12) screws securing the upper connector cover and the Type-B interface shield
cover to the lower housing. Then remove the upper connector cover.
5.
Remove 7 (CBP 3 12) screws and 2 (CBS 3 6) screws securing the C172 MAIN board to the lower
housing. Then remove the controller board along with the shield cover.
6.
Remove 2 (CP 3 6) screws securing the shield cover to the C172 MAIN board, and remove the shield
cover.
When you replace the main board, initialize EEPROM contents as follows:
1.Reassemble the printer.
2.Turn the printer on while holding down the Alt, LF/FF, Economy / Condensed, and
Pause buttons on the control panel.
When the EEPROM is initialized, some default settings (for example, the Bi-D setting, head
gap / angle / black-color head gap, head drive voltage settings, etc.) are lost. So, you need to
adjust the printer. (See Chapter 4.)
When the EEPROM is initialized, the protect counter is also reset; so you need to replace the
ink drain pad. (See Section 2.4.2. and Section 3.2.11.)
The C172 MAIN board shield plate has sharp edges, so take care in handling them.
Take care in handling the lithium battery, as described in Section 3.1.1.
Replace the control panel harness, and then remove the main controller .
Rev.A
Disassembly and Assembly
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