1-2
SERVICING PRECAUTIONS
NOTES REGARDING HANDLING OF THE PICK-UP
1. Notes for transport and storage
1) The pick-up should always be left in its conductive bag until immediately prior to use.
2) The pick-up should never be subjected to external pressure or impact.
2. Repair notes
1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials.
2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and
impact. If it is subjected to strong pressure or impact, the result may be an operational malfunction and/or
damage to the printed-circuit board.
3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reason
the adjustment point and installation screws should absolutely never be touched.
4) Laser beams may damage the eyes!
Absolutely never permit laser beams to enter the eyes!
Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged.
5) Cleaning the lens surface
If there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as used
for camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cotton
swab should be used, taking care not to distort lens.
6) Never attempt to disassemble the pick-up.
Spring has excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab.
(Do not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much
of this alcohol on the swab, and do not allow the alcohol to get inside the pick-up.
Storage in conductive bag
Drop impact
NEVER look directly at the laser beam, and don’t allow
contact with fingers or other exposed skin.
Magnet
How to hold the pick-up
Conductive Sheet
Cotton swab
Pressure
Pressure
SECTION 1. GENERAL
Summary of Contents for SH33SD-S
Page 25: ...2 16 4 SLED CONTROL RELATED SIGNAL NO DISC CONDITION FIG 4 1 1 2 3 4 1 2 3 4 ...
Page 27: ...2 18 FIG 7 2 DVD 7 DISC TYPE JUDGEMENT WAVEFORMS FIG 7 1 DVD 1 2 3 IC501 IC501 1 2 3 1 2 3 ...
Page 28: ...2 19 FIG 7 4 CD FIG 7 3 CD 1 2 3 IC501 IC501 1 2 3 1 2 3 ...
Page 29: ...2 20 FIG 8 2 CD 8 FOCUS ON WAVEFORMS FIG 8 1 DVD 1 2 3 1 2 3 4 4 1 2 4 3 IC501 ...
Page 41: ...2 32 2 IC401 MOTOR DRIVER PIN CONFIGURATION BLOCK DIAGRAM ...
Page 42: ...2 33 1 IC501 MPEG MT1389L PIN DESCRIPTION ...
Page 66: ...2 69 2 70 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD DIAGRAM TOP VIEW ...
Page 67: ...2 71 2 72 MAIN P C BOARD DIAGRAM BOTTOM VIEW ...
Page 74: ...2 PASSIVE SUBWOOFER SH33SD W 950 A90 951 953 956 954 952 955 WIRE90 3 7 ...
Page 75: ......