CG-FX Series M PCB Assy - E103679 (E400456)

E103679 – Main board M (CG-FX Series M PCB Assy) – Mimaki CG-FX

The main board M (CG-FX Series M PCB Assy, E103679) is fitted to Mimaki CG-FX series cutting plotters. It provides the central control of the machine and coordinates the exchanges between the sub-assemblies.

Its manufacturer designation is "Mark PCB MF assy" (Mimaki CG-FX maintenance manual D500209): it is the board of the cutting registration mark reading circuit ("Tombo"). Mounted on the main board, behind the right side cover, it connects connector CN20 of the main board to the "Mark PCB H" head board (E102475), which manages the registration mark sensor, the mark and cutting solenoids and the LED pointer. It supersedes reference E102642.

Technical specifications

• OEM reference: E103679
• Manufacturer: Mimaki
• Part type: Main board M (main PCB, CG-FX series)
• Manufacturer designation: "Mark PCB MF assy" (CG-FX maintenance manual); trade name "CG-FX Series M PCB Assy"
• Connectors: CN1 → "Main PCB" main board CN20; CN2 → "Mark PCB H" head board
• Location: On the main board, behind the right side cover; secured with 1 P3x6SMW screw
• Former reference: E102642 ("Mark PCB MF assy", superseded by E103679)
• Documentation: Mimaki CG-FX Maintenance Manual D500209 Ver. 3.00, § 2-11 (removal) and § 3-2-7 (Mark PCB MF, CG-75FX / CG-130FX)
• Note: Until now this page presented the part as a "main board M" ("main PCB, CG-FX series") providing the central control of the machine. According to the Mimaki CG-FX maintenance manual (D500209), E103679 / E102642 is the "Mark PCB MF assy", the board of the registration mark circuit; the main board of the CG-FX is the "Main PCB assy" (E102472 / E102706). Compatibility: the manual restricts the Mark PCB MF to the CG-75FX and CG-130FX and fits the CG-160FX with a "Sub PCB MF assy" (E102707), whereas two distributors also list the CG-160FX and a single distributor cites the CG-75FXII, CG-130FXII and CG-160FXII: check the fitted board before ordering. Reference E400456 is given as superseded by E103679 by a single distributor only.
• Shipping: Shipped ready to install

Compatibility & use

• Mimaki CG
• After replacement, adjust the sensitivity of the registration mark photosensor following the "Adjusting the mark sensor" procedure in the CG-FX maintenance manual.
• On the CG-160FX, identify the fitted board before ordering: the maintenance manual describes a "Sub PCB MF assy" (E102707) in the same position.

Function

• Connects the main board (connector CN20) to the "Mark PCB H" head board via its connectors CN1 and CN2 (CG-FX maintenance manual)
• Part of the cutting registration mark reading circuit ("Tombo"): registration mark sensor, mark and cutting solenoids, LED pointer, managed on the head side by the Mark PCB H
• Provides the central control of the machine
• Coordinates the exchanges between the sub-assemblies
• Acts as the central electronic control interface

Signs of wear

• Error "ERR 36 MARKdetect" (registration mark detection failure): first adjust the photosensor sensitivity following the maintenance manual; if the error persists, a fault in a cable or board of the mark detection circuit is possible
• Sub-system not driven
• Electronic errors
• Loss of internal communication
• Erratic behaviour or machine stops

Replacing this part restores the machine to proper working order.

Equivalent references : E102642

Related parts

• E102475 — "Mark PCB H assy" head board, connected to connector CN2 (registration mark sensor, solenoids, LED pointer)
• E102165 — "Mark sensor PCB assy" registration mark sensor board, connected to the Mark PCB H
• E102472 — CG-FX "Main PCB assy" main board, whose connector CN20 receives this board
• E102706 — CG-FX "Main PCB assy" main board, whose connector CN20 receives this board
• E102707 — "Sub PCB MF assy", board fitted in the same position on the CG-160FX (CN1 → Main PCB CN20, CN2 → Mark PCB H, CN4 → USB)

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