Toshiba 2000 - Manual (Page 53)

4.3 Replacement Timing of Major Parts
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33
CAUTION
• Take extreme precaution when measuring the power supply voltage at the power
supply terminal of the module during inspection.
There is a danger of electrocution.
• Do not touch the C2 module when the power is on. The heat radiating side covers
become extremely hot (ambient temperature+20
o
C) when power is on. It cools
(ambient temperature+10
o
C) in 10 minutes when the power is turned off.
4.3 Replacement Timing of Major Parts
Listed below are the product life of major components. Periodically replace parts using
this table as reference. Contact your Toshiba service desk for information concerning
the price and ordering method of replacement parts.
Product life of major components
Parts
Location of
wear
Description Product Life
Replacement
Interval
Action
Hard disk
drive Mechanism Wear 5 years or 20,000
cumulative power on hours
which ever comes first. 2 years Replace
Battery
(PS694 built-in
Ni-Cd) Capacity Depletion 500 power interruptions or
3 years, whichever come
first. (Ambient temperature
35
o
C)
— Replace
Battery
(PS694M
built-in Ni-MH) Capacity Depletion 450 power interruptions or
1 year, whichever come
first. (Ambient temperature
35
o
C)
— Replace
Battery
(C2 built-in) Capacity Depletion 10 years (Ambient
temperature 35
o
C)
10 years Parts replacement
by overhaul
PC Card slot Functional
parts Wear 10000 insertions/removals — Parts replacement
by overhaul
External FDD Mechanism Wear 5 years or 15,000
cumulative power on hours
which ever comes first. 2 years Replace
Product life of major components
Parts
Location of
wear
Description Product Life
Replacement
Interval
Action
Keyboard Mechanism Wear 100,000 strokes — Replace
Mouse Mechanism Wear 100,000 clicks — Replace
CRT Displays 10,000 cumulative power
on hours — Replace
In addition to the main unit, disk drives such as the CD-ROM, and MO drive also have
a product life. Check the product life of the peripheral devices being used and replace
them before their product life expires.