3 Precaution of Laser Diode
CAUTION:
This unit utilizes a class 1 laser.
Invisible laser radiation is emitted from the optical pickup lens.
Wavelength: 662nm(DVD)/785nm(CD).
Maximum output radiation power from pickup: 100µW/VDE
When the unit is turned on:
1. Do not look directly into the pick up lens.
2. Do not use optical instruments to look at the pick up lens.
3. Do not adjust the preset variable resistor on the pickup lens.
4. Do not disassemble the optical pick up unit.
5. If the optical pick up is replaced, use the manufacturer’s specified replacement pick up only.
6. Use of control or adjustments or performance of procedures other than those specified herein may result in hazardous
radiation exposure.
4 About Lead Free Solder (PbF)
Distinction of PbF PCB: PCBs (manufactured) using lead free solder will have a PbF stamp on the PCB.
Caution:
·
Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher.
Please use a high temperature soldering iron. In case of the soldering iron with temperature control, please set it to 700 ±
20°F (370 ± 10°C).
·
Pb free solder will tend to splash when heated too high (about 1100°F/ 600°C).
When soldering or unsoldering, please completely remove all of the solder on the pins or solder area, and be sure to heat the
soldering points with the Pb free solder until it melts enough.
8
SA-HT640WP / SA-HT640WPC
Summary of Contents for SAHT640 - DVD THEATER RECEIVER
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Page 19: ...8 2 Detail Block Diagram Receiver module 19 SA HT640WP SA HT640WPC ...
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Page 45: ...Step 3 Push tray assembly to the direction of arrow shown 45 SA HT640WP SA HT640WPC ...
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Page 95: ... SMPS stands for switching mode power supply 95 SA HT640WP SA HT640WPC ...
Page 102: ...21 3 4 2 Receiver Module P C B 102 SA HT640WP SA HT640WPC ...
Page 104: ...23 Explode Views 23 1 Cabinet Parts Location 104 SA HT640WP SA HT640WPC ...
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