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KX-TG6700B/KX-TG6702B/KX-TGA670B
4.8.3.
Charge Circuit
When the Handset is put on the cradle of the Base Unit or the charger, the power is supplied from CHARGE+ and CHARGE-
terminals to charge the battery via Q361 or R366, and D361. The voltage between CHARGE+ and CHARGE- flows R231 →
Q231 → pin 41 of IC201, where the charge is detected. Then IC201 calculates the battery consumption amount from the
previous charge, and it controls Q361/Q362/Q363 by pin 79 of IC201 until charging is complete. When charging is complete, the
control pattern is switched to Trickle charging form from Operational charging form.
4.8.4.
Ringer and Handset SP-Phone
28
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Troubleshooting
