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.
- 1-3 -
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
Pressure
Pressure
Cotton swab
Conductive Sheet
Содержание LH-C6230P
Страница 10: ... 2 1 SECTION 2 AUDIO PART ...
Страница 12: ... 3 2 VCR ELECTRICAL TROULBESHOOTING ...
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Страница 27: ... 5 1 DVD ELECTRICAL TROUBLESHOOTING 1 Test debug flow SECTION 5 DVD PART ...
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Страница 34: ... 5 8 3 RS232 waveform during procedure Downloading 4 Flash R W enable signal during download Downloading ...
Страница 35: ... 5 9 2 SDRAM CLOCK 1 MT1379 main clock is at 27MHz X501 3 TRAY OPEN CLOSE SIGNAL 1 Tray open close waveform ...
Страница 36: ... 5 10 2 Tray close waveform 3 Tray open waveform ...
Страница 37: ... 5 11 4 SLED CONTROL RELATED SIGNAL NO DISC CONDITION 5 LENS CONTROL RELATED SIGNAL NO DISC CONDITION ...
Страница 38: ... 5 12 6 LASER POWER CONTROL RELATED SIGNAL NO DISC CONDITION 7 DISC TYPE JUDGEMENT WAVEFORM ...
Страница 39: ... 5 13 ...
Страница 40: ... 5 14 8 FOCUS ON WAVEFORM ...
Страница 41: ... 5 15 9 SPINDLE CONTROL WAVEFORM NO DISC CONDITION ...
Страница 42: ... 5 16 10 TRACKING CONTROL RELATED SIGNAL System checking ...
Страница 43: ... 5 17 11 RF WAVEFORM 12 MT1379 AUDIO OPTICAL AND COAXIAL OUTPUT ASPDIF ...
Страница 44: ... 5 18 13 MT1379 VIDEO OUTPUT WAVEFORM 1 Full colorbar signal CVBS 2 Y ...
Страница 45: ... 5 19 3 C 14 AUDIO OUTPUT FORM AUDIO DAC 1 Audio related Signal ...
Страница 46: ... 5 20 MEMO ...
Страница 49: ...2 2 2 3 BLOCK DIAGRAM ...
Страница 50: ...2 4 2 5 AUDIO SHEMATIC DIAGRAMS U COM SCHEMATIC DIAGRAM ...
Страница 51: ...2 6 2 7 FUNCTION POWER SCHEMATIC DIAGRAM ...
Страница 52: ...2 8 2 9 MAIN AMP SCHEMATIC DIAGRAM ...
Страница 53: ...2 10 2 11 WIRING DIAGRAM ...
Страница 55: ...2 14 2 15 PRINTED CIRCUIT DIAGRAM MAINAMP FRONT P C BOARD SOLDER SIDE ...
Страница 56: ...2 16 2 17 MAINAMP FRONT P C BOARD COMPONENT SIDE ...
Страница 57: ...2 18 2 19 FUNCTION POWER P C BOARD SOLDER SIDE ...
Страница 58: ...2 20 2 21 FUNCTION POWER P C BOARD COMPONENT SIDE ...
Страница 59: ...3 17 3 18 VCR SHEMATIC DIAGRAMS SYSTEM SCHEMATIC DIAGRAM ...
Страница 60: ...3 19 3 20 A AUDIO V VIDEO SCHEMATIC DIAGRAM ...
Страница 62: ...3 23 3 24 TU IF ACSS SCHEMATIC DIAGRAM ...
Страница 63: ...3 25 3 26 HIFI TUNER SCHEMATIC DIAGRAM ...
Страница 64: ...3 27 3 28 A V JACK SCART SCHEMATIC DIAGRAM ...
Страница 66: ...3 31 3 32 PRINTED CIRCUIT DIAGRAMS TUNER P C BOARD ...
Страница 67: ...3 33 3 34 VCR P C BOARD ...
Страница 68: ...3 35 3 36 VCR P C BOARD ...
Страница 69: ...5 22 5 21 DVD PART SCHEMATIC DIAGRAMS MPEG SCHEMATIC DIAGRAM ...
Страница 70: ...5 23 5 24 SERVO SCHEMATIC DIAGRAM ...
Страница 71: ...5 25 5 26 AUDIO SCHEMATIC DIAGRAM ...
Страница 72: ...5 27 5 28 INTERFACE SCHEMATIC DIAGRAM ...
Страница 73: ...5 29 5 30 VOLTAGE SHEET IC TR ...
Страница 74: ...5 31 5 32 PRINTED CIRCUIT DIAGRAM DVD P C BOARD SOLDER SIDE ...
Страница 75: ...5 33 5 34 DVD P C BOARD COMPONENT SIDE ...
Страница 77: ...SECTION 4 MECHANSIM OF VCR PART ...
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