For Schematic Diagram; Base Unit (Schematic Diagram (Base Unit_Main)); Handset (Schematic Diagram (Handset_Main)) - Panasonic KX-TG6500BXB Service Manual

KX-TG6500BXB / KX-TGA650BXB

36 FOR SCHEMATIC DIAGRAM

36.1. Base Unit (SCHEMATIC DIAGRAM (BASE UNIT_MAIN))

Notes:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
2. This schematic diagram may be modified at any time with the development of new technology.
36.1.1. Microphone Input Level (Base Unit)
Adjust the signal level to -40dBm(11mVp-p) with no load.
Then input the signal to MIP and MIN of the base unit through PQLT3E3A-M.
36.1.2. Acoustic Testing Mode
Press "1", "6" and "flash" simultaneously, and insert the plug of AC adaptor.
*No beep sound
It is difficult to measure the transmit level without acoustic testing mode.

36.2. Handset (SCHEMATIC DIAGRAM (HANDSET_MAIN))

Notes:
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
36.2.1. Microphone Input Level (Handset)
Handset Mode
Adjust the signal level to -40dBm with 600 ohm load.
Then input the signal to MICP and MICN of the handset through the 47uF capacitors.
Headset Mode
Adjust the signal level to -45dBm with 600 ohm load.
Then input the signal to MICP and MICN of the handset through the 47uF capacitor.
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