KX-TDA0103X, KX-TDA0103XJ, KX-TDA0104X, KX-TDA0104XJ, ETX1KM753MB, ETX1KM752MB - Panasonic PBX Service Manual (repair manual). Page 8

Read Panasonic KX-TDA0103X / KX-TDA0103XJ / KX-TDA0104X / KX-TDA0104XJ / ETX1KM753MB / ETX1KM752MB Service Manual online

8
KX-TDA0103X/KX-TDA0103XJ/KX-TDA0104X/KX-TDA0104XJ
4.3.
Circuit Description
4.3.1.
AC Section
This section consists of the AC input connection and EMI noise filter
1. AC Inlet and Connector CN005
3 pin AC inlet and wire to board connector
Allow AC connection via the external metal chassis to the Power supply circuitry
2. SW001
Double pole rocker ON/OFF switch
Allow the switching On and Off the AC supply to the power supply unit
3. F001
5 x20 mm fuse with fuse clip
Provide the protection against abnormal current into the power supply by cutting the L line in hazardous situation.
4. Filter and Surge absorber circuit
Z001 : ZNR
Provide protection against external surge such as lightning surge
C027, C031 : Across-the-line EMI filter capacitors (X-cap)
L011, L012 : Common mode line filter 
C028, C030, C032, C033 : Line-to-Earth capacitor (Y-cap)
Limits the EMI noise generated by the power supply
Page of 105
Display

Click on the first or last page to see other KX-TDA0103X / KX-TDA0103XJ / KX-TDA0104X / KX-TDA0104XJ / ETX1KM753MB / ETX1KM752MB service manuals if exist.