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FCO #: A0128-2

Status: inactive

Date: Jun/30/98

Keywords: 

Ultra5 and Ultra10 systems may experience fuzzy video, slow booting and Serial port hang in SYNC mode (X.25)

Top FIN/FCO Report: Yes

Products Reference: Ultra5 / Ultra10 motherboard

Product Category: Desktop / System Board

Product Affected: 

Mkt_ID   Platform   Model   Description              Serial Number
------   --------   -----   -----------              -------------
A21      A21        270     Ultra 5 270MHz Desktop   < xW822ssssss *
A22      A22        300     Ultra 10 300MHz Desktop  < xW822ssssss *

* Note: The affected system serial number for problems 1 and 2 is less
        than xW817ssssss.

Parts Affected: 

Part Number              Description              Model
-----------              -----------              -------
375-0009-05 (or below)   Motherboard, Ultra5/10      -

(SCSI Devices)
Type    Vendor    Model     SerialNumber(Min)    SerialNumber(Max)    Firmware
----    ------    -------   ------------------   ------------------   --------
N/A

References: 

ECO: WO_13038
   ECO: WO_12616
   ECO: WO_12861
   LEAP: 884
   BugId: 4120186, 4114784, 4114343
   FIN: I0386-1, I0391-1
   Esc: 513567

Issue Description: 

This release of the FCO (FCO_A0128-2) adds a third problem and the associated 
corrective action.

From FCO_A0128-1:

This FCO addresses two problems currently being experienced on this product;

1) System takes a long time to boot.  System running Power On Self-Test even 
   though the diag-switch in the NVRAM was set to `false'.  The boot counter 
   also was not incrementing as the number of power-cycles value could not be 
   updated for every new power cycle of the machine.

   Root cause has been attributed to an unnecessary pull-up resistor (R310 a
   location 0603) on the motherboard affecting the PWRGD2 signal from the power
   supply.  This could cause the system to reset too early and start to access 
   TOD before the TOD becomes enabled.  This resistor was removed via ECO#
   WO_12616 on motherboards 375-0009-05 available in manufacturing since 
   mid-February 1998.

2) Fuzzy video display on color monitors.  The character edges are not sharp
   and appear smeared to the right of the character.  This gives dark text on
   a white background a fuzzy or "dirty" appearance.

   Root cause has been attributed to video circuitry on the motherboard.  The 
   corrective action has been implemented via ECO# WO_12861 on motherboards 
   375-0009-07 available in manufacturing since mid-April 1998.  Additionally,
   any system with a serial number equal to or greater than xW817ssssss is
   not affected as they will contain a -07 or later motherboard.

   The system serial number can be interpreted as follows;

     xW817ssssss
  
     1st digit: Manufacturing site
     2nd digit: W - Workstation
     3rd digit: Calendar year
     4th and 5th digit: Calendar week
     last six digits: serial number

3) System may experience a serial port hang when using external clock source
   as transfer clock in SYNC mode (X.25). 

   Due to the voltage drop across the 4.7K serial resistor, the output of the
   clock driver (UC5180 at location U4) could not obtain a logic-low voltage
   at the input of 74F04 (at location U43A) thus causing the serial port's
   external clock input to fail.  

   Corrective action was to replace the 74F04 at location U43A with a 74ACT04
   (p/n 100-2448-01) which rolls the Ultra 5/10 motherboard from 375-0009-07
   to 375-0009-08.  This corrective action was implemented via ECO# WO_13038
   on motherboards 375-0009-08 available in manufacturing since May 15, 1998.
   Any system with a serial number equal to or greater than xW822ssssss is
   not affected as they will contain a -08 or later motherboard.  Logistics
   corrective action was implemented via LEAP_884 on May 15, 1998.

Implementation: 

---
  	|   |  	MANDATORY (Fully Pro-Active)
	 ---    

         ---
  	|   | 	CONTROLLED PRO-ACTIVE (per Sun Geo Plan) 
	 ---   
			
         ---
        | x |   UPON FAILURE or CUSTOMER REQUEST
         ---

Replacement Time Estimate: 

30 minutes

Special Considerations: 

Corrective Action: 

For Problems 1 and 2 upon failure or at customer request replace;

   375-0009-05 (or below) with 375-0009-07

For Problem 3 upon failure replace;

   375-0009-07 (or below) with 375-0009-08

Comments: 

Although ECO# WO_12546 released the 375-0009-06 this dash level was never used 
in production.

Billing Type: 

Warranty: Sun will provide parts at no charge under Warranty 
           Service. On-Site Labor Rates are based on how the
           system was initially installed.

 Contract: Sun will provide parts at no charge. On-Site Labor Rates
           are based on the type of service contract.

 Non Contract: Sun will provide parts at no charge. Installation by
               Sun is available based on the On-Site Labor Rates 
               defined in the Price List.

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Implementation Footnote: 

________________________

i)   In case of Mandatory FCOs, SunService will attempt to contact all known
     customers to recommend the part upgrade.

ii)  For controlled proactive swap FCOs, SunService mission critical support
     teams will initiate proactive swap efforts for their respective accounts,
     as required.

iii) For Replace upon Failure FCOs, SunService partners will implement the
     necessary corrective actions as and when they are required.

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