Apple Sony Drive Fix

Subject: Added torque start-up ROMS for old Quantum drives (A) Date: Fri, 19 Jun 92 08:19:23 EDT From: Ephraim Vishniac <ephraim@Think.COM> A few weeks back, someone posted information suggesting that for those of us with old Quantum drives which appear to have problems starting when cold, there is a ROM update available. I would appreciate any specifics anyone has on this... SERVICE NOTICE: 20MB/40MB HARD DRIVE REPAIR EXTENSION PROGRAM ( Copyright 1991, Apple Computer Inc.) OVERVIEW We have discovered that a certain batch of half-height internal 3.5" 20MB and 40MB hard drives and some external 3.5" 20MB and 40MB drives may have been subjected to disk media contamination. These drives may experience a number of different symptoms, as fully described later on in this notice. To address this problem, Apple is offering a 20MB/40MB Hard Drive Repair Extension Program for customers and Service Providers with drives manufactured four years ago or later that meet all the criteria below. A new drive, P/N 661-1629, has been substituted for the problem drives. DRIVE IDENTIFICATION INFORMATION * Definition of 20MB/40MB Symptoms * Stiction problems: Platter does not spin up after drive has been powered down for period of time. * Head crashes: Drive may or may not mount, and data may be corrupted. * Soft errors: Disk continually goes in and out of seek mode. * Model and Serial Number The affected 20MB and 40MB drives were manufactured in Macintosh( SE, Macintosh SE/30, Macintosh II, Macintosh IIx, Macintosh IIcx/IIci, and Macintosh IIfx computers. The problem also affects some external 3.5" 20MB and 40MB configurations. Additionally, these drives were used as Service repair modules under P/N 661-0612 (20MB) and P/N 661-0464 (40MB). Because of the problem, all new and existing orders for 20MB drives (P/N 661-0612) will automatically receive a 40MB drive (P/N 661-1629). If you have any questions regarding qualification of a failed 20MB or 40MB drive, contact Technical Operations for further clarification. * How To Identify Affected 40MB Drives 1) Symptoms of affected drives (one or more of the following): * Stiction problems * Head crashes * Soft errors 2) Serial number indicating the drive is less than four years old. See the chart below for qualifying dates and serial numbers. 3) Model number: SRD2040 * How To Identify Affected 20MB Drives 1) Symptoms of affected drives (one or more of the following): * Stiction problems * Head crashes * Soft errors 2) Model number: SRD2020 (Note: All drives with this model number are eligible throughout the life of this program. Serial number matching is not required.) RETURNING AND REPLACING HARD DRIVES * Customer Repair The program covers free replacement of a customerUs qualified failed 20MB (P/N 661-0612) or 40MB (P/N 661-0464) hard drive until August…