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24.7. CHARGE DETECT CIRCUIT
24.7.1. Circuit Operation:
·
CHARGE MODE
When charging the handset on the base unit, CH. ID CODES are sent from the CTL terminal to the handset, and charging current
is supplied to the handset from the battery charge contacts via R352, R353, R354 on base unit:When - contact on base unit is input
to Pin 48 of IC201 (CPU) through Q353. When the A point on the handset is High level, Q502 on handset goes on and Pin 24 of
IC901 becomes Low, In this way the CPU on handset detects the fact that the battery is charged.
is supplied to the handset from the battery charge contacts via R352, R353, R354 on base unit:When - contact on base unit is input
to Pin 48 of IC201 (CPU) through Q353. When the A point on the handset is High level, Q502 on handset goes on and Pin 24 of
IC901 becomes Low, In this way the CPU on handset detects the fact that the battery is charged.
·
Set up of the handset
When charging the handset on the base unit, the data signal is sent for CTL terminal to handset. The Q351 switching is affected
by Pin 10 of IC201 on base unit, the sending data are CH data, ID code etc. The data signal is sent to Pin 23 of IC901 (CPU) via
Q501 on handset.One time charging these data sent to 8 times to the CPU of handset.
by Pin 10 of IC201 on base unit, the sending data are CH data, ID code etc. The data signal is sent to Pin 23 of IC901 (CPU) via
Q501 on handset.One time charging these data sent to 8 times to the CPU of handset.
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KX-TC1005RUC / KX-TC1005RUB / KX-TC1005RUW
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