Pioneer DVR-550HX-S, Руководство по обслуживанию

Страница: 9 / 188

DVR-LX60D
7
5 6 7 8
5 6
7
8
C
D
F
A
B
E
1.2 NOTES ON HANDLING THE HDD
Reference : M a i n spec i f i cat i ons on da m a g e to the H DD
The HDD is about 10 times as sensitive to shock
during operation than during nonoperation.
Dur i n g operat i on Dur i n g noperat i on
Shock G
(acceleration)
< approx. 20 G < approx. 200 G
Temperature
change
< 20 º C/hour
Moisture change < 20 % /hour
0.5 inch / 12.7 mm 387 217 200 26
1.0 inch / 25.4 mm 595 457 310 37
2.0 inch / 50.8 mm 1133 600 680 70
4.0 inch / 101.6 mm 1795 1040 1050 267
Reference : Est im ate v a l ue of fa lli n g d i stance v s. shock (G)
w hen the H DD i s dropped wi thout protect i on
Land i n g
surface
F a lli n g
d i stance
Gran i te
surface
Concrete
f l oor
S y nthet i c - res i n -
coated ta bl e
Ant i stat i c
spon g e
( 1 ) Caut i ons on H and li n g the H DD
• The HDD is very sensitive to shocks and vibrations. Care must be taken especially during operation (when the power is on).
• The HDD is very sensitive to electrostatic charges.
• Rapid change in temperature or humidity may cause deterioration o f the HDD.
Note: A f ter receiving damage caused by any above-mentioned f actors, the HDD may operate normally f or do z ens or some
hundreds o f hours but then suddenly crash. If you are certain you have damaged a new repair part (HDD) while making
repairs, do not use the part.
(2) Caut i ons on hand li n g the product on w h i ch the H DD i s m ounted or the H DD as a repa i r part , and
e x a m p l es of dan g erous hand li n g
[ Caut i ons on hand li n g the product on w h i ch the H DD i s m ounted ]
• While the unit is turned on, the HDD is always in operation. Be sure NOT to impart shock to the unit.
E x a m p l es of dan g erous hand li n g: w h il e the po w er i s on
• Bumping on the bonnet
• Dropping an object, such as a small screwdriver or remote control unit, onto the bonnet, or bumping an object against the cabinet
• Moving the unit by dragging
• Stacking another product on the unit
Note: Be sure NOT to impart shock, such as bumping or hitting a screwdriver against the HDD, during diagnosis with the bonnet open.
E x a m p l es of dan g erous hand li n g: w h il e the po w er i s off
• I mparting strong shock, although the HDD is more resistant to shock when the power is o ff
• Dropping the unit f rom a height o f several centimeters, or a f ter li f ting one side o f the unit up, then letting the unit drop.
• Do NOT move the unit immediately a f ter the power is turned o ff . Wait at least 30 seconds a f ter the indication on the F L
display changed f rom POWER O FF to the clock indication be f ore moving the unit. If the AC power cord is accidentally
disconnected be f ore turning the unit o ff , wait at least f or one minute be f ore moving it. I n this case, damage to the HDD
caused by sudden shuto ff may be small, because the emergency relie f mechanism is activated. However, i f sudden shuto ff
occurrs during recording or playback, recorded data may be damaged. Be sure to check operations.
[ Caut i ons on hand li n g the H DD as a repa i r part ]
1. Handle the HDD in a sa f e environment:
• Handle the HDD over an antistatic pad that can also absorb shock.
• Wear wrist bands to prevent electrostatic charges generated in your body f rom a ff ecting the HDD.
2. The f ollowing must be observed when handling the HDD:
• Handle one HDD at a time. Do NOT hold several HDDs at the same time.
• Grip the HDD on both sides so that you do not touch its terminals or circuit boards.
• Do NOT stack one HDD onto another HDD (even i f the HDDs are protected in antistatic bags).
• Do NOT bump the HDDs against one another.
• Do NOT bump any tool, such as a screwdriver, or other hard object against the HDD.
• When a repair part (HDD) is transported and there is a large temperature di ff erence between outdoors and indoors, to the
indoor, leave it in its package f or about a hal f day to gradually cool or warm the HDD to room temperature be f ore unpacking it.
[ Notes on pack i n g for sh i p m ent ]
• When returning a de f ective HDD f or analysis, handle with care as i f it were a good product. Otherwise, the results o f analysis
may not be correct.
• When packing, use the antistatic bag and packing materials in which the repair part f or service was delivered. Attach a copy
o f the slip f or service or a memo stating symptoms in as much detail as possible.