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Figure
1-8 (Page 3 of 3). 3xx Tape Unit Controller Diagnostic Reference Codes
exchange 21 F7932 and run test 86 to verify the repair. If test 86 did not
fail at the start, run test 95. If test 95 fails or if this reference code con-
tinues to occur, exchange the remaining FRUs as needed, and run test
95 after each FRU is exchanged
to
verify the repair.
Ref.
Code
036 1
A tape acceleration error has occurred. Run test 95. If test 95 fails or
if this reference code continues to occur, exchange the FRUs as
needed, and run test 95 after each FRU is exchanged to verify the
repair.
I
Probable
The tape lifter (TL) may not be working or may be working too slowly.
Check that the TL cable is connected correctly and that the TL is not
binding. Run test 90 to verify the repair.
Part Number
21 F7932
If test 95 fails or if this reference code continues to occur, exchange
the FRUs as needed, and run test 95 after each FRU is exchanged to
verify the repair.
The supply hub clamps will not engage the tape reel. Ensure that the
sensor card (21 F7930) is installed so that it touches the left side of the
opening under the supply reel motor. Ensure that the cable on the
supply reel motor (21 F7945) is connected correctly. Run test 91 to
raise the supply hub (21 F7950) clamps and test 92 to retract them. If
the supply hub turns, the motor is good. If the clamps come up, the
hub lock solenoid (56F0022) is good. If one or two clamps do not come
up correctly, exchange the supply hub. If the solenoid armature does
not pick, suspect the solenoid (56F0022), the motorlpower card
(21 F7927), or the controller card (21 F8063).
If this reference code continues to occur, exchange the FRUs as
needed and run test 91 after each FRU is exchanged
to
verify the
repair.
Cause
75%
Action
A tape speed error has occurred. Run test 86. If test 86 fails,
If this reference code continues to occur, exchange the FRUs as
needed, and run test 45 after each FRU is exchanged to verify the
repair.
99 %
85%
10%
4%
1-24
Service Information
This reference code occurs when the readlwrite card (21 F7923) is not
correctly installed in its connector on the connector card.
The buffer controller is not responding. This reference code will occur
if the buffer card or controller card was exchanged and modules US02
and U602 on the buffer card or modules U1, W, or U19 on the con-
troller card were not removed from the old card and inserted into the
new card, or were not correctly installed on the new card. Ensure that
the modules are correctly installed on the cards and run test 0
t o
very
the repair.
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