Prevention Of Electro Static Discharge (Esd) To Electrostatically Sensitive (Es) Devices - Panasonic SA-AK570PL Servise Manual

Reference No.
PC5701
PC5702
PC5720
PC5799
F1
F1
FP2901
TH5701
TH5702
TH5860
P5701
P5701
C5700
C5701
C5703
C5703
C5704
C5705
C5706
C5707
C5711
C5712
C5712
C5713
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage
caused by electro static discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equiped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equiped with ES devices, place the assembly on a conductive surface such as aluminium
foil, to prevent electrostatic charge build up or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder remover device. Some solder removal devices not classified as "anti-static (ESD protected)" can
generate electrical charge to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminium foil or
comparable conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
Caution
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize body motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing
together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to
damage an ES device).
Part No.
B3PBA0000402 PHOTO COUPLER
B3PBA0000402 PHOTO COUPLER
B3PBA0000402 PHOTO COUPLER
B3PBA0000402 PHOTO COUPLER
K5D802APA008 FUSE
K5D802BNA005 FUSE
K5G4013A0001 FUSE PROTECTOR
D4CAA5R10001 THERMISTOR
D4CAC8R00002 THERMISTOR
D4CC11040013 THERMISTOR
K2AA2B000017 AC INLET/OUTLET
K2AB2B000010 AC INLET/OUTLET
F1BAF1020020 1000pF
F0CAF334A087 0.33uF
F0C2H1040001 0.1uF 500V
F0CAF224A085 0.22uF
F1BAF1020020 1000pF
F1BAF1020020 1000pF
F1BAF1020020 1000pF
F1BAF1020020 1000pF
F2B2G471A083 470uF 400V
F2B2D8210010 820uF 200V
F2B2G471A083 470uF 400V
F0C2J1030005 0.01uF 630V
5
Part name & Description
[M]
[M]
[M]
[M]
[M] PL
[M] GCP
[M]
[M] PL
[M] GCP
[M]
[M] GCP
[M] PL
[M]
[M]
[M] GCP
[M] PL
[M]
[M] GCP
[M] GCP
[M]
[M] GCP
[M] PL
[M] GCP
[M]
SA-AK570PL / SA-AK570GCP
Remarks