Read Errors - Control Data Corporation BR8 SERIES Hardware Maintenance Manual

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6.5.9 READ ERRORS
Refer to 6.5.4 prior to starting this trouble shooting procedure.
77834769-A
REPLACE
PAD
ACCORDING TO
PARA. 6.7.4
REPLACE
WITH KNOWN
GOOD
DISKETTE
NO
CHECK
READ/'NRITE
HEAD FOR
CORROSION
OR DIRT
CHECK
FOR PROPER
DISKETTE
LOADING
CHECK
CONDITION
OF DISKETTE
CHECK
WAVEFORMS AT
TP3 & 4, TPI & 2
(FIG. 5-1). VERIF
WAVEFORM
AN\PLlTUDE &
SHAPE AS SHOWN
IN FIG. 6-2 AND
6-3
YES
CLEAN HEAD
ACCORDING
TO PARA. 6.4
PERFORM
SPINDLE AND
CONE ADJ.
PARA. 6.6.7
6-13