Charging contact BASE UNIT CONTROLS AND FUNCTIONS TONE/PULSE Switch DC in 9V Jack Dot matrix display LINE Modular Jack 900MHz CALLER ID FD-4809 Caller ID indication example Base Antenna Number of calls Cradle Date Time IN USE/CHARGE LED Caller's telephone number...
ALIGNMENT PROCEDURE Base Unit Transmitter Section BASE Unit Connections Test Point Power Meter DC IN 9V Jack AC 120V Adapter 60Hz Preset a) Remove the solder on the pattern (refer to the illust. below). b) Set the “TONE / PULSE” switch to PULSE. c) Connect the AC adapter to the base unit while pressing the “PAGE”...
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Receiver Section Connections BASE Unit RF SG Test Point DC Voltmeter DC IN Terminal 9V Jack AC 120V 60Hz Adapter Preset a) Remove the solder on the pattern (refer to the illust. below). b) Set the “TONE/PULSE” switch to PULSE. c) Connect the AC adapter to the base unit while pressing the “PAGE”...
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Handset Unit Transmitter Section Connection HANDSET Unit Power Test Point Meter J603 Battery Connector DC Power Supply DC 3.8V Preset a) Remove the solder on the pattern (refer to the illust. below). b) Connect DC power supply to battery connector on the handset unit. c) Turn the DC power supply On while pressing "...
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Receiver Section Connections HANDSET Unit RF SG Test Point J603 Discriminator DC Power Supply DC Voltmeter Battery Test Point Connector DC 3.8V Preset a) Remove the solder on the pattern (refer to the illust. below). b) Connect DC power supply to battery connector on the handset unit. c) Turn the DC power supply ON while pressing “...
TROUBLESHOOTING HINTS 1. The bell does not ring. See 2. The bell does not ring When the PAGE SW of the & page does not ring. base is pressed, does the ringer on the handset ring? When the TEL SG is joined Check IC3 and TEL network with the base to make bell circuit.
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2. The bell does not ring & page does not ring. Can the base and handset be See 3. The base and handset connected? cannot be connected. Press handset DIAL key When the key of the handset is Check IC606. while in TALK MODE.
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3. The base and handset cannot be connected. Check whether the base Check IC4 and its is able to set in the test peripheral circuit. mode 1. Check the TX POWER Check base RF unit. and the TX FREQUENCY on the base unit. Press “PAGE”...
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Press “3” key, check Check whether there is a Check whether there is Check IC602 and its whether deviation of the pulse data waveform at a pulse data waveform at peripheral circuit. TX data is app. ±23kHz C630. pin 40 of IC602. ~ ±45kHz Dev.
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4. Cannot make a phone call (pulse). Can the base and handset See 3. The base and handset be connected? cannot be connected. While in TALK MODE, press Check IC4 and its peripheral dial key of the handset. circuit. Check whether square waveform from pin 46 of IC4 is fed.
6. Voice cannot be transmitted to other party (outgoing call). Can the base and handset be See 3. The base and handset connected? cannot be connected. The 1 kHz, 3.3mV sine Check Q606 and its wavefor m i s a p p l i e d t o peripheral circuit.
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7. The voice of the caller cannot be heard (incoming call). Can the base and handset be See 3. The base and handset connected? cannot be connected. The 1 kHz, 86.9mV sine Check the base TEL-line waveform is applied to TEL- circuit and REPLAY control line of the base, can the 1 kHz circuit.
IC AND TRANSISTOR VOLTAGE CHART Base Unit Unit[V] Unit[V] Ref. No. PIN STBY TALK NOTE Ref. No. PIN STBY TALK NOTE OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN 0.4-2.6 0.4-1.4 Float Float 1.2-1.6 1.2-1.6...
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Unit[V] Unit[V] Ref. No. PIN STBY TALK NOTE Ref. No. PIN STBY TALK NOTE OPEN OPEN 0.0/3.0 0.0/3.0 Pulse/Tone Pulse/Tone 0.3-0.5 0.3-0.5 Pulse Pulse OPEN OPEN OPEN OPEN 0.4-3.0 0.4-3.0 Pulse Pulse 0.2-2.8 0.2-2.8 Pulse Pulse 0.0-3.1 0.0-3.1 0.0-3.1 Pulse Pulse 0.0-3.1 Pulse...
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Handset Unit[V] Unit[V] Ref. No. PIN STBY TALK NOTE Ref. No. PIN STBY TALK NOTE OPEN OPEN 0.8-2.8 Pulse Pulse OPEN OPEN OPEN OPEN 0.0-2.8 Pulse OPEN OPEN OPEN OPEN OPEN OPEN OPEN OPEN 0.0-2.8 Pulse OPEN OPEN 0.0-2.8 Pulse 0.6-2.6 Float Float...
PARTS LIST PRODUCT SAFETY NOTE : Products marked with a have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice of this service manual. Don't degrade the safety of the product through important servicing. Symbol Symbol 30 -20+80 0+100...
ASSEMBLY PARTS LIST NOTE: Following part numbers are not available as replacement parts. Order parts necessary for repair or contact the Toshiba Factory Service Center. LOC. REF. PART NO. DESCRIPTION RC008696 AC618ZLBA MAIN PCB ASSEMBLY, BASE RC008698 AC618ZLPA MAIN PCB ASSEMBLY, HANDSET...