1. Clock assignment to
SYSTEM clock is unique.
2. Ensure both chains in
bay which contains
FB211 being replaced
are powered up
3. Removal of fuses may
cause F-level
interrupts from TSI,
TMS, or SCLK
controllers if open
diode exists in
FB211 pack
[2] Is TSI
unit associated
with the faulty
[3] If unit identified
from service using
[4] Is TSI unit type
identified in Step 1
a near term (J4A001A-2)
or cost reduced
b = controller is same
a = member number
as NCLK bay containing
FB211
to be replaced
RMV:TSI
a
,CONTR
b!
[5] If TSI unit identified
[6] Identify VIF,
DT, DIF, PUC or EST
unit associated with
TSI unit identified
associated units are
remove these units
appropriate TABLE D
messages
from service using
[9] See CAUTIONS 2 and 3. Remove fuses
in same bay as
FB211
being replaced
[8] Identify
A
and
B
fuses associated
with
FB211
pack to be replaced
FB211
packs
No
No
Yes
Yes
AND
(J4A001B-1) TSI unit
appropriate TABLE D,
[7] If TSI unit and
for correct controller
assignment
See TABLE D, Page 6,
in Step 1 is not out-
of-service, remove unit
in Step 1 is not out-of-
service, enter
REPLACE FB211 CIRCUIT PACK
not out-of-service,
determined, use TABLE A,
Page 3; B, Page 4; or C,
Page 5 to determine this
[10] Remove
FB211
pack
FB211
packs has not been
[1] See CAUTION 1. If
unit receiving clock
signals from faulty
unit
CAUTIONS
234-151-013
Issue 8
PAGE 1 of 6
DEC 1995
DLP
511
