REAR PANEL ASSEMBLY

The I/O Connector Board (lOB) is mounted on the rear panel and contains the signal input/output connectors, line drivers, and receivers.

In cabinet installations, the rear panel is stationary; that is, it does not slide out with the disk drive but remains in the cabinet. The electrical connections between the panel and the disk drive are es-tablished by means of flexible cables.

1.5 FORCED-AI R CLEANING SYSTEM

The SF and ST Disk Drives contain a forced-air system that purges the disk and head areas with highly filtered air. Air is drawn from outside the cabinet and cools the electronic assemblies. During operation, the interior of the disk drive is at slightly elevated pressure, with respect to the ambient, which serves to keep dust from entering the disk drive.

The components of the forced-air system are accessible from below the base casting. The dual air-filter element is contained in the rectangular cavity next to the spindle assembly. The blower fan is located on the opposite side of the spindle. Both components are covered by individual sheet-metal plates (see Section 5 for the physical location of these components).

Intake air enters the disk drive at the front panel from above. With this arrangement, only fresh ambient air is circulated through the disk drive. The incoming air is accelerated by the blower, passes through the plenum chamber then through the filter element and over the disk surfaces. It exits via the head entry door of the cartridge and through the lower head area.

SECTION 2

INSTALLATION AND CHECKOUT

2.1 INTRODUCTION

This section contains unpacking and installation instructions and a description of the interface for the Perkin-Elmer Super Series SF (front-loading) and ST (top-loading) Disk Drives.

2.2 UNPACKING AND INSPECTION

SF and ST Disk Drives are shipped in special containers designed to provide full protection under normal transit conditions. I mmediately upon receipt, the shipping container should be inspected for evidence of possible damage incurred in transit. Any obvious damage to the container, or indications of actual or probable equipment damage, should be reported to the carrier company in accordance with instructions on the form included in the container.

Figure 2-1 shows an exploded view of the palletized packaging container and its parts. Table 2-1 lists the parts with full descriptions in accord with item numbers used in the. figure.

To unpack the disk drive, open the top side of the shipping container and remove the two Etha-foam flotation frames, packaging spacers, and rectangular cardboard sleeve. Then carefully remove the plastic bag and use care to avoid tearing the bag. All of these components should be saved in case it may be necessary to relocate the unit at a later date. A shipping package (PIN T-00287 may be ordered from the Company.

When the plastic bag has been removed, grip the unit along both sides of the casting while lifting it out of the container. Do NOT support the unit by. the handle on the front panel. The finished surfaces and the plastic part of the front panel should also be handled with reasonable care to avoid marring.

2.3 CARRIAGE SHIPPING RESTRAINT REMOVAL

For protection during shipping, the carriage of the positioner assembly is held back against the rear stop by a shipping restraint shown in Figure 2-2. This restraint immobilizes the carriage, heads, and associated parts. Plug P16 on the Power Supply is shipped disconnected to preclude possibility of power being inadvertently applied to the disk drive while the shipping restraint is still installed.

The shipping restraint must be removed before the disk drive can be operated. To remove the shipping restraint, remove the restraint retaining screw located at the rear of the positioner. This screw is shown in the INSTALLED POSITION (see Figure 2-2). Reinstall the shipping restraint as shown in the STOWED POSITION (see Figure 2-2).

NOTE

The restraint retaining screw holds the carriage rear stop and must be reinstalled.

2-1

SUPER SERIES 1088-002

12

PACKING LIST ENVELOPE

Figure 2-1. Shipping Container and Parts

Item No.

Table 2-1. Packaging Container Parts (see Figure 2-1)

Part No. Description

T -00287 -001 Outer Stitched Box

T-00287-002 Flotation Frame

T -00287 -003 Inner Box

T -00287 -004 Mounting Base

Bolt, Hex %-20 UNC x 1-1/2

T-00128 Shipping Damage Notice Form

T -00180-007 Dust Cover, Shroud (series "T" only) 200951-001 Technical Manual Vol. 1 and 2

NOTE

The Shipping restraint must be removed before the Disk Drive can be operated.

2.4 INSTALLATION

2.4.1 INPUT POWER REQUIREMENTS

The standard Perkin-Elmer Super Series Disk Drive contains an integral power supply which can accept anyone of the AC input voltages (see Table 1-1). The power supply frequency may range from 47Hz to 63Hz. The appropriate input connections are established via a voltage selection plug located next to the power transformer.

PRIOR TO CONNECTING THE AC LINE CORD TO THE POWER SOURCE, VERIFY THAT THE VOLTAGE PLUG IS COMPATIBLE WITH THE LINE VOLTAGE AT THE INSTALLATION SITE.

EXAMINE THE POWER SPECIFICATION DECAL ON THE REAR PANEL OF THE UNIT.

If the transformer tap connections are changed to accommodate a different primary power source, the voltage marking decal should be changed to show the correct voltage rating for the disk drive.

Precut decal markers of nonconductive B-500 vinyl cloth are available from Perkin-Elmer for this purpose. These decals can be ordered in the following configurations:

Perkin-Elmer"P/N Legend Perkin-Elmer PIN Legend Perkin-Elmer PIN Legend 133501-100 100 VOLTS 133501-120 " 120 VOLTS 133501-230 230 VOLTS 133501-110 110 VOLTS 133501-210 210 VOLTS 133501-240 240 VOLTS

133501-115 115 VOLTS 133501-220 220 VOLTS 133501-250 250 VOLTS

2-3

POSITIONED ON RETRACT SWITCH ACTUATOR

a. INSTALLED POSITION

b. STOWED POSITION

RESTRAINT

RETAINING SCREW

"SHIPPING RESTRAINT

Figure 2-2. Carriage Shipping Bestraint

·1089-002