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Microwave ovens are probably the most hazardous due to high voltage at high power. There are two areas which have particularly nasty electrical dangers: Major parts of nearly all modern TVs and many computer monitors are directly connected to the AST Sanyo 4x line - there is no power transformer to provide the essential barrier for safety and to minimize the risk of equipment damage. The flyback generates most of the other voltages used in the unit and provides an isolation barrier so that the signal circuits are not line connected and safer.

Since a bridge rectifier is generally used in the power supply, both directions of the polarized plug result in dangerous conditions and an isolation transformer really should be used - to protect you, your test equipment, and the TV, from serious damage.

Notes on the Troubleshooting and Repair of Television Sets

Some TVs do not have any isolation barrier whatsoever - the entire chassis is live. These are particularly nasty. The high voltage to the CRT, while AST Sanyo 4x greater than the line input, is not nearly as dangerous for several reasons. First, it is present in a very limited area of the TV or monitor - from the output of the flyback to the CRT anode via the fat HV wire and suction cup connector. If you don't need to remove the mainboard or replace the flyback or CRT, then leave it alone and it should not bite. Furthermore, while the shock from the HV can be quite painful due to the capacitance of the CRT envelope, it is not nearly as likely to be lethal since the current available from the line connected power supply is much greater.

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Safety guidelines These guidelines are to protect you from potentially deadly electrical shock hazards as well AST Sanyo 4x the equipment from accidental damage. Note that the danger to you is not only in your body providing a conducting path, particularly through your heart. Any involuntary muscle contractions caused by a shock, while perhaps harmless in themselves, may cause collateral damage - there are many sharp edges inside this type of equipment as well as other electrically live parts you may contact accidentally.

The purpose of this set of guidelines is not to frighten you but rather AST Sanyo 4x make you aware of the appropriate precautions. Repair of TVs, monitors, microwave ovens, and other consumer and industrial equipment can be both rewarding and economical. Just be sure that it is also safe!

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Don't work alone - in the event of an emergency another person's presence may be essential. Always keep one hand in your pocket when anywhere around a powered line-connected or high voltage system.


Wear rubber bottom shoes AST Sanyo 4x sneakers. Don't wear any jewelry or other articles that could accidentally contact circuitry and conduct current, or get caught in moving parts.

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Set up your AST Sanyo 4x area away from possible grounds that you may accidentally contact. Know your equipment: TVs and monitors may use parts of AST Sanyo 4x metal chassis as ground return yet the chassis may be electrically live with respect to the earth ground of the AC line. Microwave ovens use the chassis as ground return for the high voltage. In addition, do not assume that the chassis is a suitable ground for your test equipment! If circuit boards need to be removed from their mountings, put insulating material between the boards and anything they may short to. Hold them in place with string or electrical tape. Prop them up with insulation sticks - plastic or wood.

Monitor while discharging and verify that there is no residual charge with a suitable voltmeter. In a TV AST Sanyo 4x monitor, if you are removing the high voltage connection to the CRT to replace the flyback transformer for example first discharge the CRT contact under the suction cup at the end of the fat HV wire.

Use a 1M to 10M ohm 5 W or greater wattage for its voltage holdoff capability, not power dissipation resistor on the end of an insulating stick or the probe of a high voltage meter. Discharge to the metal frame which is connected to the outside of the CRT. An implosion will scatter shards of glass at high velocity in every direction. AST Sanyo 4x are several tons of force attempting to crush the typical CRT. exe, Sanyo 4x CD-ROM drivers v.

exe, Hard Disk Restore File v -AST Works, exe, Vibra16 drivers. Find many AST Sanyo 4x new & used options and get the best deals for SANYO Crdv 4x SCSI Cd-rom at the best online prices at eBay! Free shipping for many.

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