Service_Bulletins Service Bulletins

User Manual: Service_Bulletins

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TX NO 1110

TO:

Local cc:

M Abrahams

R

D Baum
p. Eruer

E Heston

R Burton

.... Carson
l
C Cobb
D Cowdin
W Garrison
R Geyer
R Gutosky
T DeLaFuente

RED

EFFECTIVITY:

Havlick

- Hull
Hoy

B
A
B
D
H

Jager
Keller
Leek
Leggett
B. rvey

C

~arrone

B

HcNeese

L I GHT

C McNutt

J Bogdan

E. Miguel

D Calderara
D Carver

G Orlowski
A Powers
C Sheldon
R Sundius
B Wicks
B Williams
G Wipperfuerth
B ~·right
B Zinsmeister

ALE R T

D Corts
B Daley
R Diodati
H Johnson
W May tan
D Petucci
L Stevens
G Whittaker
R Poland
J Hill

0561

Fujitisu Eagle Disk Drives

PROBLEM:
The disk will not

power up when the system is first received.

SOLUTION: Reset connector CJN502 on the head/deckassembly. To gain access
to the connector, the card cage on the left side of the disk must
be lifted"out. The connector is on the bottom of the HDA. Seating
of this connector is apparently disturbed while the vibration
damping foam block is installed or removed.
CONCLUSION:
This information will be contained in the service manual in the
black book.

BEn Wright
Qantel

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ECHO MEMORY: 0010F2100000 OOlOF21000BO 0006A7 (xmitl~T'
Enter 16 characters and xmi t. The CRT s'creen should
fill with the character entered.
If this fails, remove all controllers except for 'the CRT and try
.again. If it still fails, you have eliminate~ the Disk AND 3/4 of
the System.
.~

..;....,

;'

The above test is a very ,basic test but is a good starting point. The
next step may be attempting to boot the Tape Dr~ve (if there is one).
If you can boot the tape, your problem IS most likely the Disk
-~l1bsvstem.
--~

,

,

READ STATUS ZERO
RSO: 4d009D 000lF30017BO 00aaA8 (xmit)
An IOU-24 should return 1174" (immediatly following IPL).
An IOU-32 or 42 should return n04".
Status' F4, E4, 94, or 84 indicate serious failures. Follow the
nREADY" branch to NO. If status is good, follow YES branch.

~"'--.
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& FILL: C0056C J~CGA8 xt3x3~3~3x3x (x~i~)
Choose 2 LARGE seek address and execute with the drive
covers off. Watch for ~he positioner movement.
If the drive can seek and it is possible to change Packs, mount your
ATP pack and attempt to boot i~. If it boots, it is very possible
that the drive is O~ but Sector 0 data is blown. The Operating System
may need a ne'-l LOADER. This is accomplished by running *LDLD (BEST
utility). DO NOT use the loader program on your ATP pack. ATP's are
an incompatable language.
S~EX

CAN IT READ
ALTERNATE SEEKS, READ, & REPORT STATUS:
0020A7  (cr)
_
006080 0300F2l0000d 4d009D OOOlF30017BO OO~OA7  (er)
008080 0300F220000d 4d009D OOOlF30017BO 002DA7  (er)
xd3x3x3x3x3x  (er)
xd3x3x3x3x3x (xmit)
Good status is "04". n74 n Status indicates a failure to Read
properly. However, the problem may still be in the SERVO ckts.
(heads not positioned directly over data track).
problem may also be Head-a is bad or need~ ·al~lgnment. The above
"should be run on Head O,first, then ",try,"it again using ~, ,,:>
,:,I:,l>differeritheads. If other heads"return n74·,,~status, the next step'is
,

~,!program

. ha'I~;:s~1~f~: :b~~ween

IBIT ,TRACK VERIFY· Write Controls:'"in

'1,'itl

.
"Y:i!j~;ij;~.·
'ron't '"of EACH·

SE~VO:c'~i?c~il .·.Ji~~,t' ;:f~~~;\,

seeK"& '.

ructlon~': Ex. ld019D 006080 'etc. • Th*e":{statns' :retllrne'd:\b()w.':~"
be~::aItf:er~ent.An D04 a status'~:;indicate~tbe"-d(iv'e 1s O'n"tllE(\'irong

·:~~t"i~rc1C~~:t~~'ec't~'servo" qkts.") '. A D24~~,1I3411, or '1I,54:t1';;~:'~E;t:a~Us 'point$:a't' the

'g'ray3 ~i:lr"ea:'wb·ere!·:.a 'Poorly
us:t~~r.~

These may 'used anytime you want to "theck the VJRIT'E;::~Ipabili{l~s' of a
CAUTION: BE CAREFUL WHERE YOU WRITE!! On seaiedmediadisks,
, 'use the F .E. TEST AREA. On Dynex I use a 'sector number, greater than
8000. Thisltlay will not destroy" customer data.,
"
drive~

It is highly recommended that the vlRITE FAULT test point be monitored
as this program executes.
SEEK & WRITE
0020A7 (Q0020)
0006F3l00000 004080 0006F21000Bd 0020A8 (Q0040), (cr)
'··xd3x3x3x3x3x (xmit)
Clear screen and enter six bytes of dat'a~(xmit)

**

To loop on WRITE, substitute 0029A7 for 0020A8.

SEEK & READ
To verify the data just written, the following program will dump what
you just wrote back to the CRT.

0020A7 
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