The latter soon became the de facto standard for independent videographers. If you hire a freelance cameraman, the chances are they will arrive with their own Z1E. Each one sports 1. Not anymore. The other big surprise is how the Z7E records its video.
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Check the area of your repair for unsoldered or poorly-soldered connections. Check the entire board surface for solder splashes and bridges. Check the interboard wiring to ensure that no wires are "pinched" or contact high-wattage resistors. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair.
Point them out to the customer and recommend their replacement. Look for parts which, through functioning, show obvious signs of deterioration. Flexible Circuit Board Repairing Keep the temperature of the soldering iron around C during repairing. Do not touch the soldering iron on the same conductor of the circuit board within 3 times.
Be careful not to apply force on the conductor when soldering or unsoldering. Boards requiring use of unleaded solder are printed with the lead- free mark LF indicating the solder contains no lead. Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size. Unleaded solder melts at a temperature about 40C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to about C. Caution: The printed pattern copper foil may peel away if the heated tip is applied for too long, so be careful! Strong viscosity Unleaded solder is more viscous sticky, less prone to flow than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. Replace only with the same or equivalent type.
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