9.
Reinstall all four PCBA mounting nuts (with lockwashers) onto the mounting
studs, then use a 1/4-inch nutdriver to tighten the mounting nuts firmly against
the Executive PCBA.
10.
Reinstall all four Phillips mounting screws in the Heat Sink Flanges, then use a
number 2 Phillips screwdriver to tighten the mounting screws until they are
snug.
11.
Reconnect all the remaining cables to the Executive PCBA.
a)
For each ribbon cable, press the ribbon cable’s connector firmly into its mating
connector, until both locking tabs on the mating connector close over the ribbon
cable’s connector.
b)
For each non-ribbon cable, make sure that
all
of the pins on the cable’s con-
nector are fully engaged with the corresponding mating connector.
c)
The remaining cables include:
•
CAROSL
(Carousel)
This cable is only found on units with a Carousel.
•
PWRDST
•
SERIAL
(Executive II and III PCBA’s only)
Connect this cable so that the stripe on the ribbon cable is on the right
side of the SERIAL connector, as shown below.
SERIAL Connector
Stripe
SERIAL
•
SE/LVD or LVD/SE
a) If a HVD Adapter PCBA
is not
installed on the replacement Execu-
tive PCBA, connect the SCSI cable to the SE/LVD connector on the Ex-
ecutive PCBA (the bottom SCSI connector in Figure 7-40).
b) If a HVD Adapter PCBA
is
installed on the replacement Executive
PCBA, connect the SCSI cable to the SCSIID connector on the HVD
Adapter PCBA (Figure 7-40). See Section 7.18 for details about connect-
ing the SCSI Differential Adapter PCBA.
•
12VFANS
The connector is not polarity-sensitive or keyed. After the connector is
attached to the PCBA, insert a Cable Tie through the hole in the Ex-
ecutive PCBA (Figure 7-28 or Figure 7-29), then secure the Fan Assem-
bly’s power cable to the Executive PCBA.
501380 Rev. B
Field–Replaceable Units (FRUs)
7-49
