Panasonic sj hd 515 service manual
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2000 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.1. Note Refer to the service manual for Model No. SE-HD515MD (ORDER No. AD0003056C2) for information on Accessories and Packaging. 2. Blue LED - The blue LED mounted to each sides of front panel is very sensitive to static electricity. When handling the LED base plate, be very careful about it. - Do not replace the blue LED by itself because it may be subject to electrostatic breakdown or deterioration in quality. When replacing the LED base plate, be sure to replace L and R sides simultaneously to adjust the brightness. For configuration at the time of supply of replacement parts, refer to Printed Circuit Board Diagram. 3. Before Repair This equipment (SJ-HD515), which is a component of the system, is supplied with power from the Amplifier (SE-HD515MD) through the Tuner (ST-HD515MD). When repairing this equipment or checking operation of the system, be sure to connect to the amplifier and tuner with it. This equipment, even in the state of it as a single equipment, permits power supply and operation check. When operating it as a single equipment without the amplifier and tuner, refer to the To Supply Power Source and Signal Check . 4. Handling Precautions for MD Unit The laser diode in the MD unit (optical pickup) may break down due to potential difference 2
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caused by static electricity of clothes or human body. So be careful of electrostatic breakdown during repair of the MD unit (optical pickup). 4.1. Handling of MD Unit (optical pickup) 1. Do not subject the MD unit (optical pickup) to static electricity as it is extremely sensitive to electrical shock. 2. To protect the breakdown of the laser diode, an anti-static shorting pin is inserted into the flexible board (FPC board). Refer to Fig. 4-1. 3. Take care not to apply excessive stress to the flexible board (FPC board). Fig. 4-1.4.2. Grounding for electrostatic breakdown prevention 4.2.1. Human body grounding Use the anti-static wrist strap to discharge the static electricity from your body. Refer to Fig. 4-2. Fig. 4-2.4.2.2. Work table grounding Put a conductive material (sheet) or steel sheet on the area where the MD unit (optical pickup) is placed, and ground the sheet. Refer to Fig. 4-3. Fig. 4-3. 3