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SECTION 1. GENERAL
❏
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 this.
6) Never attempt to disassemble the pick-up.
Spring by 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 let
contact fingers or other exposed skin.
Magnet
How to hold the pick-up
Conductive Sheet
Cotton swab
Pressure
Pressure
Summary of Contents for lh-t6340d
Page 5: ... 1 6 ...
Page 6: ... 2 1 SECTION 2 AUDIO PART AUDIO TROUBLESHOOTING GUIDE 1 POWER SUPPLY CIRCUIT ...
Page 7: ... 2 2 2 FRONT CIRCUIT 1 2 ...
Page 8: ... 2 3 3 FRONT CIRCUIT 2 2 ...
Page 9: ... 2 4 MEMO ...
Page 11: ... 3 2 ...
Page 12: ... 3 3 ...
Page 13: ... 3 4 ...
Page 14: ... 3 5 ...
Page 15: ... 3 6 ...
Page 16: ... 5 1 SECTION 5 SPEAKER SECTION MODEL LHS T6340T 753 755 752 754 751 750 ...
Page 17: ... 5 2 MODEL LHS T6340W 854 856 855 853 850 852 857 851 ...
Page 18: ... BLOCK DIAGRAM 2 5 2 6 ...
Page 19: ...2 7 2 8 SCHEMATIC DIAGRAMS POWER SCHEMATIC DIAGRAM ...
Page 20: ...2 9 2 10 MICOM SCHEMATIC DIAGRAM ...
Page 21: ...2 11 2 12 FRONT SCHEMATIC DIAGRAM ...
Page 22: ...2 13 2 14 DSP AMP SCHEMATIC DIAGRAM ...
Page 23: ...2 15 2 16 SMPS NARROW WIDE SCHEMATIC DIAGRAM ...
Page 24: ...2 17 2 18 WIRING DIAGRAM ...
Page 25: ...2 19 2 20 PRINTED CIRCUIT BOARD DIAGRAMS MAIN DVD P C BOARD DIAGRAM BOTTOM ...
Page 26: ...2 21 2 22 MAIN DVD P C BOARD DIAGRAM TOP ...
Page 27: ...2 23 2 24 FRONT P C BOARD BOTTOM ...
Page 28: ...2 25 2 26 FRONT P C BOARD TOP ...
Page 29: ...2 27 2 28 SMPS P C BOARD ...
Page 30: ...3 7 3 8 DVD SCHEMATIC DIAGRAMS DVD MPEG DSP SCHEMATIC DIAGRAM ES6698FD ...