Cautions When Undertaking Service Operations - Part 1 - Horizon Fitness PC-P430 Manual

III Cautions when undertaking service operations - Part 1
●The description in this page is common issue in the Horizon products.
The description unrelated to this machine may be contained.
WARNING
When replacing parts or performing other such main-
tenance operations, turn the power off unless it is
necessary to keep the power on. Also, lock the Power
switch before doing service operations.
- This prevents another person from turning on the Power
switch without knowing that you are doing service opera-
tions.
- There are three holes for keys. If more than one person
does service operations at the same time, each person
should lock the Power switch separately.
Beware of rotat-
WARNING
ing objects.
Do operations
WARNING
alone.
Wait ten second
before turning on
CAUTION
the power again.
Use the correct
CAUTION
parts.
Prepare a special
wrench when you
CAUTION
replace the safety
switches
Lock the keys when you
turned off the Power switch.
If you need to do service operations while operat-
ing the machine, be extremely cautious of rotating
objects such as belts and pulleys etc. Otherwise,
it may cause the severe personal injury.
Always do operations alone when operating
the machine. This manual is written on the
assumption that operations will be done by
one person.
When turning the power back on, wait for
approximately ten seconds after turning the
power off before turning it on again.
When replacing parts, use the parts shown
in the parts book unless commercially avail-
able parts with exactly the same functions
and performance can be obtained.
Special screws are used to mount the safe-
ty switches, which detects that the cover is
opened or closed. This prevents the users
from removing the safety switches.
Beware
CAUTION of static
electricity
Keep Board in a
shield bag.
Shield Bag
P.C.Board
Do not put Board and ROM on the machine, especially on
Plastic Cover
the plastic cover. (No problem on the conductive plate.)
And keep the Board and ROM away from the insulators.
Insulators: Plastic, form polystyrene,
Clip
When replacing the Board and ROM, or setting the DIP
Machine
switches and volumes on the Board, wear a wrist strap,
Frame
and connect the clip to the machine frame (not painted
surface).
Wrist
Strap
3
Even an small amount of static electricity that it can-
not be felt by people will damage the board or ROM.
Exercise caution on the following points when han-
dling the board or ROM.
Put the ROM on a
Conductive
Sponge
conductive sponge
and keep in a shield
bag.
Shield Bag
chemical fiber fabric, dry paper, etc.