CC903-61891 - Board-Printer Signal Bracket Assy-Rohs

CC903-61891 – Printer signal board on bracket (Board-Printer Signal Bracket Assy) – HP Scitex TJ8300 / TJ8550 / TJ Blaze

The printer signal board (Board-Printer Signal Bracket Assy RoHS, CC903-61891) is fitted to HP Scitex printers. It manages the printer signals and interfaces with the main board.

Its manufacturer designation is “Board-Printer Signal Bracket Assy-Rohs”: RoHS-compliant version of the “Board Printer Signal Bracket Assy.” CC903-61493 and 503000050 boards (original Scitex numbering). HP parts lists also give it on the HP Scitex Press Jet and Press Jet 2. It is connected to the “Board Double Home Drum Assy” board (CC903-61491) by cables “W34b” and “W35/A”, and cable “W182/C DTW QLMT Control DH VSBCOM” (CC903-50341) is listed with its cables.

Technical specifications

• OEM reference: CC903-61891
• Manufacturer: HP
• Part type: Printer signal board (PBA)
• Manufacturer designation: “Board-Printer Signal Bracket Assy-Rohs”
• Compliance: RoHS (replaces the non-RoHS versions CC903-61493 and 503000050)
• Location: On a bracket (“Bracket”), between the drum and the electronics bay based on cables “W34b” / “W35/A”
• Associated cables: “W34b” (CC903-50340), “W35/A” (CC903-50339), “W182/C” (CC903-50341)
• Associated board: “Board Double Home Drum Assy” CC903-61491
• Note: References CC903-61493 and 503000050 designate the same board in a non-RoHS version; the 503000050 is also listed on the HP Scitex Press Jet and Press Jet 2.
• Shipping: Shipped ready to install

Compatibility & use

• HP Scitex TJ8300
• HP Scitex TJ8550
• HP Scitex TJ8350
• HP Scitex TJ8600
• HP Scitex TJ Blaze 230v
• HP Scitex Press Jet
• HP Scitex Press Jet 2
• Before replacing the board, check cables “W34b” / “W35/A” to the drum's “Double Home” board (CC903-61491) and cable “W182/C”: the signal chain includes two boards, to be isolated before ordering.

Function

• Relays the signals from the drum (“Double Home” board CC903-61491 via cables “W34b” / “W35/A”) and from the “DTW / DH” chain (cable “W182/C”) to the central electronics, based on the HP designations; the detailed role is not publicly documented
• Ensures the electronic control of a sub-system
• Passes the signals to the main board
• Acts as an interface between the firmware and the hardware

Signs of wear

• 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 : CC903-61493 · 503000050

Related parts

• CC903-61491 — board “Board Double Home Drum Assy”, connected by cables “W34b” / “W35/A”
• CC903-50340 — cable “W34b Printer Sig To Drum DH Assy”, to the drum's Double Home board
• CC903-50339 — cable “W35/A Drum DH 2 Sig Bracket Assy”, return from the drum's Double Home board
• CC903-50341 — cable “W182/C DTW QLMT Control DH VSBCOM”, DTW / DH signal chain

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