KX-TS820MXB/KX-TS820MXW 1 Safety Precautions 1.1. For Service Technicians • Repair service shall be provided in accordance with repair technology information such as service manual so as to pre- vent fires, injury or electric shock, which can be caused by improper repair work.
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KX-TS820MXB/KX-TS820MXW 2.1.1. Suggested PbF Solder There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper (Sn+Ag+Cu), you can also use Tin and Copper (Sn+Cu) or Tin, Zinc, and Bismuth (Sn+Zn+Bi). Please check the manufac turer's specific instructions for the melting points of their products and any precautions for using their product with other materi- als.
KX-TS820MXB/KX-TS820MXW 4.2. Circuit Operation 4.2.1. Power supply circuit The set is powered from the line, 48V/24V. • Off hook LINE → Q101 → Q107 → R119 → D106 → D201 → D203 → Vdd (pin7 of IC1) • On hook LINE →...
KX-TS820MXB/KX-TS820MXW 5 Location of Controls and Components Refer to the Operating Instructions. Note: You can download and refer to the Operating Instructions (Instruction book) on TSN Server. 6 Installation Instructions Refer to the Operating Instructions. Note: You can download and refer to the Operating Instructions (Instruction book) on TSN Server.
KX-TS820MXB/KX-TS820MXW 10 Miscellaneous 10.1. How to Replace the Flat Package IC Even if you do not have the special tools (for example, a spot heater) to remove the Flat IC, with some solder (large amount), a soldering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.
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KX-TS820MXB/KX-TS820MXW 10.1.3. How to Install the IC 1. Temporarily fix the FLAT PACKAGE IC, soldering the two marked pins. *Check the accuracy of the IC setting with the corresponding soldering foil. 2. Apply flux to all pins of the FLAT PACKAGE IC.
KX-TS820MXB/KX-TS820MXW 11 Schematic Diagram 11.1. For Schematic Diagram 1. DC voltage measurements are takens with electronic voltmeter from negative terminal. 2. This schematic diagram may be modified at any time with the development of new technology. Important Safety Notice: Components identified by mark have special characteristics important for safety.
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KX-TS820MXB/KX-TS820MXW Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks PQJJ1T030P JACK/SOCKET R521 ERJ3GEYJ225 2.2M (SWITCHES) L103 ERJ3GEY0R00 PQSH2B105Z PUSH SWITCH L301 ERJ3GEY0R00 K0D113B00082 SLIDE SWITCH L305 ERJ3GEY0R00 (VARISTOR) L306 ERJ3GEY0R00...
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KX-TS820MXB/KX-TS820MXW 13.3.2. Accessories and Packing Materials Note: (*1) You can download and refer to the Operating Instruc- tions (Instruction Book) on TSN Server. Safety Ref. Part No. Part Name & Description Remarks PQJA10152W CORD, HANDSET (KX- TS820MXB) PQJA10152Z CORD, HANDSET...