INTRODUCTION
Fault symptom codes are generated by the functional microcode when an error condition is detected while the functional micro-code is running.
MULTIPLE ERROR SYMPTOMS
Multiple error symptoms indicate that more than one collecting and reporting circuit reported an error when the sense data was collected. Multiple symptoms do not necessarily indicate more than one failing circuit or function. Any of the following conditions can cause multiple error symptoms from only one failing circuit or function:
• A failing circuit causes an error that is recognized by more than one error sensing circuit. This error recogni-tion probably occurred at different times during a mach-ine operation.
• A failing circuit causes an error ·that is recognized by one error sensing circuit. The error causes the current operation to stop before the sequence is complete. Stop-ping the current operation Causes another condition that is recognized as an error by another error sensing cir-cuit.
• A failing circuit causes an error that is recognized by an error sensing circuit. When the sense data is col-lected. the same condition causes an error in the sense data.
• The reset or clock circuits are failing.
• Dropping power (input or CB tripping) can cause symptom codes not related to the power problem. Fix the power problem first. If a symptom code is then presented. use it to repair the unit.
83337530 C lB-l
DIAGNOSTIC PROCEDURE
When multiple errors or nonrepeating errors are reported. look at the sense data.
• Look for a pattern of sense bits. to guide you to the failing area.
• One error failing at different points in an operation, or another operation. can produce different symptom codes.
FAULT SYMPTOM CODE INDEX (FSCI)
The Fault Symptom Code is a four-digit code generated from sense data information. The first hex digit of the code is de-rived from Sense Byte 7. Bits 0 through 3; it denotes the for-mat of the code. Formats 0 . 1 . 4 . 5 . 6 . 7 . and 8 apply to errors occurring in the controller and device.
Refer to section 1C for more information on sense data.
The Fault Symptom Code may be determined in one of the follow-ing ways:
1. Observation of the EREP printout.
2. Observation of the CPU con'so le error message at the time of the error.
3 • Dump External E·rror Log (EEL) . 4. Run Error Synthesis Program (ESP)
Table 1B-1 provides the Fault Sympt:om Code Index. The codes are arranged in alphanumeric order. Most. but not all, FSCs have routines and FRUs listed with their descriptions. The routines should be used to produce -the error during trouble-shooting and to verify that the problem is fixed. If the rou-tines listed do not produce an error, run the linked series.
The FRUs listed should be used to fix the problem.
lB-2 83337530 D
TABLE IB-l. FAULT SYMPTOM CODE INDEX
FSC Format Byte Bit(s) Description
1104 1 11 5=1 Power Card Check
Routine: CSl
FRUs: 2007. 2010. 2S50
1120 1 11 2=1 RPS Check
Routine: CSI. CS3 FRUs: 2010. 2005.
200S. 2009.
2001. 2007.
2011. 2006 1140 1 11 1=1 Servo Control Check
Routine: CS1. CS2 FRUs: 2010. 2006.
2009. 200S.
2007. 2005 11S0 1 11 0=1 Error Flag (Checkpoint
Check)
Routine: CS1
FRUs: 2010. 200S.
2009. 2005 124S 1 12 2-4=001 Safety Active Check (odd
address matrix board) Routine: CS4
FRUs: 2005. 2011.
2010. 200S.
1004. 1003.
1005. 1007
12~O 1 12 2-4=010 Write Current Check (odd I address matrix board)
i
Routine: CS1
FRUs: 2011. 2450.
2005. 200S.
2009. 1004. 1003
Table Continued on Next Page
S3337530 D 1B-3 •
TABLE lB-l. FAULT SYMPTOM CODE INDEX (Contd)
FSC Format Byte Bit(s) Description
1258 1 12 2-4=011 Read Sequence Check (odd address matrix board)
Routine: C81
FRUs: 2011. 2010.
2008. 1004. 1003 1260 1 12 2-4=100 Write Transition Check
(odd address matrix board) Routine: C84
FRUs: 2011. 2450.
2005, 2008, 1004, 1003
I
1268 1 12 2-4=101 Write Gate Check (odd
I
address matrix board) Routine: C84
FRUs: 2011, 2010,
2008, 1004, 1003 1270 1 12 2-4=110 Head Select Check (odd I
address matrix board) Routine: C84
I
FRUs: 2011. 2006, I 2450, 2008, ! 2010, 1004. 1003 1278 1 12 2-4=111 ±.5 V and -8.2 V Safety
Check (odd address matrix board)
Routine: C81
FRUs: 2011, 2010, 2850 1288 1 12 2-4=001 Safety Active Check (even
I
address matrix board)
Routine: C84 I
FRUs: 2005, 2011,
I
2010, 2008, 1004, 1003, 1005, 1007
Table Continued on Next Page
1B-4. 83337530 0
TABLE IB-l. FAULT SYMPTOM CODE INDEX (Contd)
FSC Format Byte Bit(s) Description
1290 1 12 2~4=010 Write Current Check (even address matrix board)
Routine: C81
FRUs: 2011, 2450, 2005, 2008,
2009, 1004, 1003 1298 1 12 2-4=011 Read Sequence Check (even
address matrix board)
I
Routine: C81
I
FRUs: 2011, 2010, I 2008, 1004, 1003
1
12AO 1 12 2-4=100 Write Transition Check
I
(even address matrix board) 'Routine: C84
FRUs: 2011, 2450, 2005, 2008, 1004, 1003 12A8 1 12 2-4=101 Write Gate Check (even
I
I
address matrix board) Routine: C84
10031 FRUs: 2011, 2010,
2008, 1004, 12BO 1 12 2-4=110 Head Select Check (even
address matrix board)
I
IRoutine: C84
I
FRUs: 2011, 2006, I
- 2450, 2008,
i
2010, 1004, 1003i
I
!
12B8 1 12 2-4=111 ±5 V and -8.2 V Safety Check (even address matrix board)
Routine: C81
FRUs: 2011, 2010, 2850
Table Continued on Next Page
83337530 D IB-5.
TABLE IB-l. FAULT SYMPTOM CODE INDEX (Contd)
FSC Format Byte Bit(s) Description
1301 1 13 7=1 HAR Parity Check
Routine: CSl
FRUs: 2006, 2011,
2010, 200S, 2009
1302 1 13 6=1 R/W Servo Check
Routine: CS4
FRUs: 2011, 2004, 2010 1304 1 13 5=1 Write Overrun Check
Routine: CSl
FRUs: 2011, 2005, 2010
130S 1 13 4=1 R/W Control Check
Routine: CS1
FRUs: 2011, 2005, 2010 1310 1 13 3=1 Read Sequence Check
Routine: CSl
FRUs: 2011, 2010, 2005, 1320 1 13 2=1 Write Sequence Check
I
Routine: CSl
FRUs: 2011, 2010, 2005
1
1340 1 13 1=1 Pad Check
i
Routine: CSl I , FRUs: 2011, 2005, 2010!
:
13S0 1 13 0=1 R/W Check I I
Routine: CSl I
FRUs: 2011, 2010, 20051
i , 1500 1 07 4-7=5 Device Does Not Respond To I
Selection
Routine: CS1, CA2 FRUs: 2010, 200S,
1004, 1003, 1050, 7903, 2009, 2S50 Table Continued on Next Page
IB-6 • S3337530 D
TABLE 1B-1. FAULT SYMPTOM CODE INDEX (Contd)
FSC Format Byte Bit(s) Description
1610 1 11 3=1 Checkpoint Log Parity Error Routine: C81
FRUs: 2010, 2008, 2007, 2009,
2005, 1004, 1003 17XX 1 07 4-7=0 End Op
--
No Device Error(See Byte 19 for XX) Routine: Linked series FRUs: 2010, 2008,
2009, 1004, 1003
I
1813 1 07 4-7=3 Missing Index Routine: C81FRUs: 2005, 2001, 2010, 1007,
1004, 1003, 2450 1814 1 07 4-7=4 Interrupt Not Resettable
Routine: Linked series FRUs: 1004, 1003,
2007, 2004, 2006, 2010, 2003, 2005 1816 1 07 4-7=6 -Device Check-2/Set Sector
Incomplete
Routine: C82, C83
I
FRUs: 2007, 2008, I 2009, 2004, I I 2006, 2010, I 2003, 2005 I
! 1817 1 07 4-7=7 Head Address Miscompare
Routine: C82
FRUs: 2006. 2010, 2450. 2012, 2001. 1008, 2011. 1007
Table Continued on Next Page
83337530 D IB-7 •
TABLE 1B-1. FAULT SYMPTOM CODE INDEX (Contd)
FSC Format Byte Bit(s) Description
1818 1 07 4-7=8 Device Status 1 Invalid Routine: C8l
FRUs: 2007. 2010.
2004. 2006.
2010. 2003. 2005 1819 1 07 4-7=9 Device Not Ready
Routine: CA2. C81 FRUs: 2007. 2010,
2006, 2005, 2011. 2008,
I
2009. 2550 181C 1 07 4-7=C Drive Motor Switch Off
I
Routine: CA2. C81 FRUs: 2007. 2010,
2006. 2850. 2550 19XX 1 07 4-7=1 Device Status 1 Not as
Expected (Byte 16 contains expected status and Byte
I
I19 contains received I
status) !
Routine: C81, C82 I FRUs: 2007. 2004, ! 2006, 2009, I I 2008, 2003, I 2005. 2010 !
I I I
lAXX 1 07 4-7:A PA Not as Expected While Oriented (See Byte 15 for
I
! ,XX) i
Routine: C82 !
FRUs: 2004. 2006, 2010, 2012,
I
i2001. 1008, 2011, 1007
Table Continued on Next Page
1B-8 • 83337530 D
TABLE 1B-1. FAULT SYMPTOM CODE INDEX (Contd)
FSC Format Byte Bit(s) Description
1DXX 1 07 4-7=D Seek Incomplete (See Bytes 15 and 19)
.Routine: C82
FRUs: 2007, 2004, 2006, 2009, 2008, 2003, 2005, 2010
1EOO 1 07 4-7=E'