Text preview for : PowerBook 1400 series.pdf part of apple PowerBook 1400 series apple old Powerbook PowerBook 1400 series.pdf
Back to : PowerBook 1400 series.pdf | Home
K Service Source
PowerBook 1400c/117, /133, /166,
PowerBook 1400cs/117, /133, /166
K Service Source
PowerBook 1400 Series
Hot Issues Overview - 1
This chapter is designed to highlight unique or high-
priority product issues that you should be aware of before
servicing the PowerBook 1400.
This chapter alerts you to important issues and provides
links to other areas in the manual where more complete
information can be found. This chapter is not intended to
replace other parts of this manual; it merely provides a
pointer to pertinent information in those chapters.
The date the Hot Issue was published is indicated in
parentheses after the title.
Hot Issues Bottom Case Latch Replacement (2/98) - 2
Bottom Case Latch Replacement (2/98)
Issue: The latches on the bottom case battery and media bays
may come off. The latches are replaceable. Please replace
the latches for customers rather than replacing the entire
Bottom Case Assembly.
Parts Identification: Order Replacement Part 922-3304:
Latch, Bottom Case, PB 1400. The latches come in a package
Replacement Procedure: For detailed instructions, see
"Bottom Case Latch Replacement" in the Additional
Procedures chapter of this manual.
Hot Issues Logic Board Identification (2/98) - 3
Logic Board Identification (2/98)
Issue: There are two logic boards with ROM version 3 that
could be used in the PowerBook 1400, 117MHz and the
PowerBook 1400, 133 MHz units. Because dealers must
return the same part they ordered to receive
reimbursement, it is important to properly identify the
logic board before ordering a replacement.
Part Number 661-1188 has ROM U3 (Low, 341S0203)
and ROM U4 (High, 341S0204). It works in PowerBook
1400, 117 MHz and 133 MHz units.
Part number 661-1381 has ROM U3 (Low, 341S0364)
and ROM U4 (High, 341S0365). It works in PowerBook
1400, 117 MHz, 133 MHz, and 166 MHz units.
You may receive a 661-1381 logic board as a replacement
for a 661-1188 if that is the board currently in service
Hot Issues Logic Board Identification (2/98) - 4
stock. Since it will work in all the PowerBook 1400 units,
this should not pose a problem to customers or Service
Parts Identification: To check the ROMs on the PowerBook
1400, 117 MHz units, remove the factory-installed
Memory Expansion Card (the card closest to the
To check the ROMs on the PowerBook 1400, 133 MHz units,
remove both the factory-installed Memory Expansion Card
and the Microprocessor Unit Daughterboard.
For instructions on removing any of these parts, see the
Take Apart chapter of the PowerBook 1400 manual.
Hot Issues Door Replacement for PowerBook 1400 CD-ROM Drives (12/
Door Replacement for PowerBook
1400 CD-ROM Drives (12/97)
Issue: The doors of the CD-ROM drives used with the
PowerBook 1400 media bay may break at the tabs used to
attach it to the drive mechanisms tray. These doors are
replaceable. Please replace the door for customers rather
than replacing the entire CD-ROM assembly.
Solution: For more information on parts identification and
replacement procedures, see "Door Replacement for CD-
ROM Drives" in the Additional Procedures chapter of this
Hot Issues 1 GB Hard Drives Formatted Improperly (2/97) - 6
1 GB Hard Drives Formatted
Issue: PowerBook 1400 computers that shipped with one
gigabyte (1 GB) hard drives were formatted improperly.
The improper formatting caused 1 GB hard drives to appear
to have only 750 MB of total disk space.
Solution: This formatting issue has been noted and corrected
at Apple's manufacturing site. This issue should no longer be
a factor in any new PowerBook 1400 computers. Follow the
steps below for identifying models of the PowerBook 1400
that shipped with 1 GB drives, determining whether these
drives were formatted improperly, and reformatting the
Hot Issues 1 GB Hard Drives Formatted Improperly (2/97) - 7
Which models shipped with a 1 GB hard drive?
Not all PowerBook 1400 computers shipped with 1 GB hard
drives. Only the following models shipped with 1 GB hard