Guzik 4610 Board Assy 301690 Head Interface PCB Disk Drive Tester Module

Guzik 4610 Board Assy 301690 Head Interface PCB Disk Drive Tester Module

The Guzik 4610 Board (Assembly 301690) is a head interface PCB module designed for use in Guzik disk drive test systems. This small-form-factor circuit board provides the electrical interface between the test system and the read/write heads of a disk drive under test, routing head signals through its multi-pin card edge connector and dedicated HEAD 0 and HEAD 1 header connectors. The board was manufactured in the United States and carries a 1991 date code visible on the PCB silkscreen.

Specifications & What's Included

• Manufacturer: Guzik
• Assembly Number: 301690 (Rev I, per board label)
• Board Designation: 4610 Board
• Form Factor: PCB module / card
• Multi-pin card edge connector (gray housing, gold-plated pins)
• HEAD 0 and HEAD 1 red header connectors on board surface
• Two additional 3-pin brown header connectors
• Orange status indicator LED
• Through-hole and SMD passive components (resistors, inductor/ferrite)
• Date Code: 1991 (per PCB silkscreen)
• Country of Manufacture: United States
• Includes: Board only, as shown in photos

Applications

Guzik Technical Enterprises is a well-known manufacturer of disk drive test and certification equipment, including spinstands, servo track writers, and media testers used in hard disk drive development and production environments. The 4610 series boards serve as interface modules within these test platforms, connecting the tester's electronics to the head gimbal assembly (HGA) or disk drive heads during parametric testing. This type of equipment was widely used in HDD R&D labs and manufacturing lines from the late 1980s through the 2000s. Replacement and spare interface boards like this one are sought by labs maintaining legacy Guzik test systems, as these platforms often remain in service for extended periods due to their precision and the cost of replacement systems.