Table of Contents
Advertisement
- 이 문서는 삼성전자의 기술 자산으로 승인자만이 사용할 수 있습니다 -
- This Document can not be used without Samsung's authorization -
1. Precautions
1-2. Safety Precautions
(1) EMI
This device has been registered regarding EMI for residential use. It can be used in all areas.
(2) Circuit Test (Logic Test) Precautions
The LSI and MSI used in this product are semiconductor integrated circuits based on MOS-FET or CMOS. Since these types of
devices are highly susceptible to static electricity or current leakage, an isolation break may be caused. Therefore read and follow the
instructions below.
1) W hen handling an LSI or MSI, make sure your body is grounded through a few mega-ohms of resistance. In addition, wear gloves
and a jacket made of cotton and not of synthetic fibers that easily generate static electricity.
2) When repairing the product, place a conductive material (e.g. aluminum foil) grounded to the earth on the worktable.
3) You must use a soldering iron without a leakage current.
4) Do not touch the pin of an IC and carefully insert the IC into the black plastic package.
5) W hen inserting an IC into a PCB, be careful with the direction of the IC. When installing an IC in the wrong direction, it might
become damaged.
6) W hen carrying an IC, package the IC with conducting material such as aluminum foil or conducting sponge so as to keep the
voltage level of each of the terminals the same.
7) Since the storage temperature of an IC is between -20 ~ +70 degrees, keep it at room temperature, if possible.
8) Since the storage temperature of an IC is between -20 ~ +70 degrees, keep it at room temperature, if possible.
9) When soldering an IC, solder it in as short a time as possible so that unnecessary heat is not applied to the device.
10) Avoid leaving excessive amounts of flux within a custom IC or between the pins when soldering a custom IC.
11) Take care to not damage the board when installing or separating an Option Board.
12) Take care to not break the printed circuit pattern on the PCB when separate an IC.
1-3. Ground
The product must be grounded to protect it from static electricity and other dangers. When using a multitap, please use a multitap with a
ground terminal only.
If you use a 220V wall outlet with a ground terminal, you do not need to ground it additionally. Avoid using wall outlets if they are not
grounded even if they have a ground terminal.
To ground the product, connect the ground to an exclusive ground terminal or metal water pipe. Connect the ground cable to the ground
terminal at the rear of the main body. To ground the product, connect the ground terminal of the product to a metal water pipe, wall outlet
or exclusive ground terminal with an electric wire equal to or thicker than #18.
Never ground the product to a PVC water pipe, phone line, TV, radio antenna, aluminum window or gas pipe, because this does not
actually ground the product and may be dangerous.
1-4. Static Electricity Precautions
Many parts of the system are susceptible to static electricity. Using an electrostatic discharge (ESD) device is very important for the
safety of the user and the user's surroundings. Using an ESD device increases the probability of a successful repair and lowers the
expenses for damaged parts.
To prevent static electricity, follow the instructions below.
1) Perform the repair in a location without static electricity.
2) T ouch your hands to a metal water pipe or some metal object connected to the ground to discharge any static electricity
from your body before handling the parts.
3) Touch only the edges of the board, if possible.
4) Do not touch any parts unless absolutely necessary
5) Disassemble the parts on the anti-static-electricity pad.
6) When a board is not installed in the system, package the board with an anti-static-electricity packaging.
1-2
Hide quick links:
Advertisement
Table of Contents
