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SAFETY INFORMATION
CAUTION:
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
WARNING!
The AEL (accessible emission level )of the laser power output is less than\
CLASS 1
but the laser component is capable of emitting radiation exceeding the limit for
CLASS 1.
A specially instructed person should do servicing operation of the apparatus.
Laser diode characteristics
Wave length : 785 nm to 814 nm
Maximum output : 1 190 µW(Emitting period : unlimited)
Additional Laser Caution
Transistors Q101 in PCB drive the laser diodes.
When Q101 is shorted between their terminals, the laser diodes will radiate beam.
If the top cover is removed with no disc loaded while such short-circuit is continued,
the naked eyes may be exposed to the laser beam.
- Safety Precautions for those who Service this Unit.
When checking or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable
results.
Caution:
1. During repair or tests, minimum distance of 13 cm from the focus lens must be kept.
CAUTION
CLASS 1M INVISIBLE LASER RADIATION WHEN OPEN. DO NOT VIEW DIRECTLY WITH \
OPTICAL INSTRUMENTS 2. During repair or tests, do not view laser beam for 10 seconds or longer.
This service manual is intended for qualified service technicians; it is\
not meant for the casual do-it-yourselfer.
Qualified technicians have the necessary test equipment and tools, and h\
ave been trained to properly and safety
repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliabi\
lity of the product and may void the warranty.
If you are not qualified to perform the repair of this product properly \
and safety, you should not risk trying to do so
and refer the repair to a qualified service technician.
Where in a manufacturers service documentation, for example in circu\
it diagrams or lists
of components, a symbol is used to indicate that a specific component sh\
all be replaced only
by the component specified in that documentation for safety reasons, the\
following symbol shall
be used:
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[Important Check Points for Good Servicing]In this manual, procedures that must be performed during repairs are mar\
ked with the below symbol.
Please be sure to confirm and follow these procedures.
1. Product safety
Please conform to product regulations (such as safety and radiation reg\
ulations), and maintain a safe servicing environment by
following the safety instructions described in this manual.
1 Use specified parts for repair.
Use genuine parts. Be sure to use important parts for safety.
2 Do not perform modifications without proper instructions.
Please follow the specified safety methods when modification(addition/c\
hange of parts) is required due to interferences such as
radio/TV interference and foreign noise.
3 Make sure the soldering of repaired locations is properly performed.
When you solder while repairing, please be sure that there are no cold s\
older and other debris.
Soldering should be finished with the proper quantity. (Refer to the ex\
ample)
4 Make sure the screws are tightly fastened.
Please be sure that all screws are fastened, and that there are no loose\
screws.
5 Make sure each connectors are correctly inserted.
Please be sure that all connectors are inserted, and that there are no i\
mperfect insertion.
6 Make sure the wiring cables are set to their original state.
Please replace the wiring and cables to the original state after repairs\
.
In addition, be sure that there are no pinched wires, etc.
7 Make sure screws and soldering scraps do not remain inside the product\
.
Please check that neither solder debris nor screws remain inside the pro\
duct.
8 There should be no semi-broken wires, scratches, melting, etc. on the \
coating of the power cord.
Damaged power cords may lead to fire accidents, so please be sure that t\
here are no damages.
If you find a damaged power cord, please exchange it with a suitable one\
.
9 There should be no spark traces or similar marks on the power plug.
When spark traces or similar marks are found on the power supply plug, p\
lease check the connection and advise on secure
connections and suitable usage. Please exchange the power cord if nece\
ssary.
a Safe environment should be secured during servicing.
When you perform repairs, please pay attention to static electricity, fu\
rniture, household articles, etc. in order to prevent injuries.
Please pay attention to your surroundings and repair safely.
2. Adjustments
To keep the original performance of the products, optimum adjustments an\
d confirmation of characteristics within specification.
Adjustments should be performed in accordance with the procedures/instru\
ctions described in this manual.
4. Cleaning
For parts that require cleaning, such as optical pickups, tape deck head\
s, lenses and mirrors used in projection monitors, proper
cleaning should be performed to restore their performances.
3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance.
Make sure the proper amount is applied.
5. Shipping mode and Shipping screws
To protect products from damages or failures during transit, the shippin\
g mode should be set or the shipping screws should be
installed before shipment. Please be sure to follow this method especia\
lly if it is specified in this manual.
