- Use only a Panasonic Handset for the KX-TSC35HKW. - Use only a telephone line cord included in the unit. - If your unit is connected to a PBX which does not support Caller ID services, you cannot access those services.
5.11. Dial Lock 5.11.1. To cancel the dial lock Follow above steps 1 through 3. In step 3, “ “ will go out. 5.12. How to Release the Establishment of Dial Lock...
9. BLOCK DIAGRAM 10. CIRCUIT OPERATION 10.1. Bell Detector Circuit When the bell signal is input between T/R, the signal are outputted at the speaker via the following path: Tel line R1/C1 Pin 1 of IC1 Pin 8 of IC1 C625 Speaker 10.2.
10.3.1. Speakerphone Circuit 10.3.1.1. Function The circuit controls the automatic switching of the transmitted and received signals, to and from the telephone line, when the unit is used in the hands -free mode. 10.3.1.2. Circuit Operation The speakerphone can only provide a one-way communication path. In other words, it can either transmit an outgoing signal or receive an incoming signal at a given time, but cannot do both simultaneously.
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The attenuator control detects the setting of the volume control through Pin 24 of IC601 to automatically adjust for changing ambient conditions. 10.3.2. Telephone Line Interface 10.3.2.1. Circuit operation - On hook Q101 is open, Q101 is connected as to cut DC loop current and cut the voice signal.
10.4. Caller ID Detect Circuit 10.4.1. Function (FSK signal) The caller ID is a changeable ID which the user of a telephone circuit obtains by entering a contract with the telephone company to utilize a caller ID service. For this reason, the operation of this circuit assumes that a caller ID service contract has been entered for the circuit being used.
wave, and data 1 a 2200 Hz sine wave.There are two types of the message format which can be received: i.e. the single message format and plural message format. The plural message format allows to transmit the name and data code information in addition to the time and telephone number data.
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11.4. EEP ROM (IC802) 1. SCL SCL terminal is input terminal of Serial Clock to control transmit and receipt between Master and Slave. 2. SDA SDA terminal is input terminal, to forward the address and the mutual data between Master Device and Slave Device the mutual. This terminal needs the pull-up resistance external because output circuit of SDA uses Open Drain.
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WP terminal controls writing action. It is possible to do only reading action when high level input and it is possible to do reading and writing action when low level input. 11.5. EEP ROM DATA for KX-TSC35HKW 11.6. Speakerphone IC Data (IC601)
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Description Name A resistor to ground provides a reference current for the transmit and receive attenuators. RTX A resistor to ground determines the nominal gain of the transmit attenuator. The transmit channel gain is inversely proportional to the RTX resistance. Input to the transmit attenuator.
Description Name XDC Transmit detector output. A resistor and capacitor at this pin hold the system in the transmit mode during pauses between words or phrases. When the XDC pin voltage decays to ground, the attenuators switch from the transmit mode to the idle mode. The internal resistor at nominally 2.6 kohms.
Pin no. signal Function Enable +3V Power Supply — 0V Power Supply — Data Bus Line Data Bus Line Data Bus Line Data Bus Line Read / Write Enable Signal Data / Command Control Chip Signal Reset Signal Input 13. HOW TO REPLACE A FLAT PACKAGE IC 13.1.
3. Being careful to not unsolder the tack points, slide the soldering iron along the tips of the pins while feeding enough solder to the tip so that it flows under the pins as they are heated. 13.3. Removing Solder from Between Pins 1.
17. REPLACEMENT PARTS LIST 1. RTL (Retention Time Limited) Note : The marking (RTL) indicates that the Retention Time is limited for this item. After the discontinuation of this assembly in production, the item will continue to be available for a specific period of time. The retention period of availability is dependent on the type of assembly, and in accordance with the laws governing parts and product retention.
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5. RESISTORS & CAPACITORS Unless otherwise specified; All resistors are in ohms ( ) K=1000 , M=1000k All capacitors are in MICRO FARADS ( F) P= *Type & Wattage of Resistor 17.1. KX-TSC35HKW 17.1.1. CABINET AND ELECTRICAL PARTS...
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Ref. No. Part No. Part Name & Description Remarks PQAS57P03Z SPEAKER PQBC10347Z1 PUSH BUTTON, SP PHONE ABS-HB PQBH10023Y3 PUSH BUTTON, HOOK ABS-HB PQBX10351Z1 PUSH BUTTON, 19KEY ABS-HB PQBX10357Y1 PUSH BUTTON, NAVI+7KEY ABS-HB PQGD10165Z SHEET PAPER, TEL CARD PQGP10203Z1 PANEL, LCD PC-HB PQGV10042Z TRANSPARENT PLATE, TEL CARD COVER PC-HB...