42
KX-FT982LS-B / KX-FT984LS-B / KX-FT988LS-B
6.8.
ITS (Integrated Telephone System) and Monitor Section
6.8.1.
General
The general ITS operation is performed by the modem IC5. The alarm tone, the key tone, the calling tone and the beep are output
from the ASIC IC1 (digital board).
6.8.2.
Telephone Monitor (KX-FT982/KX-FT984 only)
1.
Function
This is the function when you are not holding the handset and can hear the caller’s voice from the line.
2.
Signal path
Refer to
Check Sheet for Signal Route
(P.115)
6.8.3.
Speakerphone Circuit (KX-FT988 only)
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.
2.
Circuit Operation
The speakerphone can only provide duplex.
3.
Signal path
Refer to
Check Sheet for Signal Route
(P.115)
6.8.4.
Handset Circuit
1.
Function
This circuit controls the conversation over the handset, i.e. the transmitted and received voices to and from the handset.
2.
Signal path
Refer to
Check Sheet for Signal Route
(P.115)
6.8.5.
Monitor Circuit for Each Signals
1.
Function
This circuit monitors various tones, such as
1
DTMF tone,
2
Alarm/Beep/Key tone/Bell
3
Dummy ring back tone.
2.
Signal path
Refer to
Check Sheet for Signal Route
(P.115)
6.9.
TAM Interface Section (KX-FT982/KX-FT984 only)
1.
Function
When TAM is connected to this unit, the unit receives documents for FAX calls or the external TAM records a voice message
automatically.
2.
Circuit Operation
The TAM INTERFACE circuit consists of a CNG signal from the other party’s detection circuit, VOX detection circuit (to judge
sound/no-sound) and RLY101 (to separate EXT. TAM).
a.
CNG/VOX signal detection circuit
The CNG signal from the other party’s FAX is detected in MODEM IC5 (digital board).
b.
Remote receiving
This is the parallel connected DTMF signal for the TEL mode between a and b. When the other party is a FAX, the unit
changes to FAX receiving.
3.
Signal path
Refer to
Check Sheet for Signal Route
(P.115)
Содержание KX-FT982LS-B
Страница 2: ...2 KX FT982LS B KX FT984LS B KX FT988LS B ...
Страница 12: ...12 KX FT982LS B KX FT984LS B KX FT988LS B 6 Technical Descriptions 6 1 Connection Diagram ...
Страница 14: ...14 KX FT982LS B KX FT984LS B KX FT988LS B 6 2 1 General Block Diagram ...
Страница 22: ...22 KX FT982LS B KX FT984LS B KX FT988LS B 6 4 2 Block Diagram ...
Страница 24: ...24 KX FT982LS B KX FT984LS B KX FT988LS B ...
Страница 72: ...72 KX FT982LS B KX FT984LS B KX FT988LS B Countermeasure ...
Страница 73: ...73 KX FT982LS B KX FT984LS B KX FT988LS B REFERENCE Test Mode P 55 ...
Страница 74: ...74 KX FT982LS B KX FT984LS B KX FT988LS B REFERENCE Test Mode P 55 ...
Страница 75: ...75 KX FT982LS B KX FT984LS B KX FT988LS B REFERENCE Test Mode P 55 ...
Страница 76: ...76 KX FT982LS B KX FT984LS B KX FT988LS B REFERENCE Test Mode P 55 ...
Страница 77: ...77 KX FT982LS B KX FT984LS B KX FT988LS B ...
Страница 78: ...78 KX FT982LS B KX FT984LS B KX FT988LS B ...
Страница 79: ...79 KX FT982LS B KX FT984LS B KX FT988LS B REFERENCE Test Mode P 55 ...
Страница 83: ...83 KX FT982LS B KX FT984LS B KX FT988LS B ...
Страница 109: ...109 KX FT982LS B KX FT984LS B KX FT988LS B NG Wave pattern Note Refer to NG Example P 114 ...
Страница 111: ...111 KX FT982LS B KX FT984LS B KX FT988LS B I O and Pin No Diagram ...
Страница 114: ...114 KX FT982LS B KX FT984LS B KX FT988LS B 12 5 6 2 NG Example ...
Страница 116: ...116 KX FT982LS B KX FT984LS B KX FT988LS B ...
Страница 121: ...121 KX FT982LS B KX FT984LS B KX FT988LS B 12 5 9 2 Troubleshooting Flow Chart ...
Страница 127: ...127 KX FT982LS B KX FT984LS B KX FT988LS B 12 5 13 Thermal Head Section Refer to Thermal Head P 23 ...
Страница 128: ...128 KX FT982LS B KX FT984LS B KX FT988LS B 13 Service Fixture Tools ...
Страница 131: ...131 KX FT982LS B KX FT984LS B KX FT988LS B 14 1 2 How to Remove the Cutter Unit KX FT984 KX FT988 only ...
Страница 132: ...132 KX FT982LS B KX FT984LS B KX FT988LS B 14 1 3 How to Remove the Lock Lever and Thermal Head ...
Страница 133: ...133 KX FT982LS B KX FT984LS B KX FT988LS B 14 2 Lower Cabinet Section 14 2 1 How to Remove the Bottom Frame ...
Страница 134: ...134 KX FT982LS B KX FT984LS B KX FT988LS B 14 2 2 How to Remove the P C Boards and Power Cord ...
Страница 136: ...136 KX FT982LS B KX FT984LS B KX FT988LS B 14 3 Operation Panel Section 14 3 1 How to Remove the Operation Panel Block ...
Страница 137: ...137 KX FT982LS B KX FT984LS B KX FT988LS B 14 3 2 How to Remove the Operation Board LCD and Platen Roller ...
Страница 138: ...138 KX FT982LS B KX FT984LS B KX FT988LS B 14 3 3 How to Remove the Separation Rubber Flap ...
Страница 139: ...139 KX FT982LS B KX FT984LS B KX FT988LS B 14 4 Installation Position of the Lead Wires ...
Страница 140: ...140 KX FT982LS B KX FT984LS B KX FT988LS B ...
Страница 148: ...148 KX FT982LS B KX FT984LS B KX FT988LS B 15 2 3 4 Copying REFERENCE Sensor Section P 124 ...
Страница 153: ...153 KX FT982LS B KX FT984LS B KX FT988LS B 16 1 4 Power Supply Board ...
Страница 155: ...155 KX FT982LS B KX FT984LS B KX FT988LS B 16 3 Test Chart 16 3 1 ITU T No 1 Test Chart ...
Страница 156: ...156 KX FT982LS B KX FT984LS B KX FT988LS B 16 3 2 ITU T No 2 Test Chart ...
Страница 157: ...157 KX FT982LS B KX FT984LS B KX FT988LS B MEMO ...
Страница 170: ...170 KX FT982LS B KX FT984LS B KX FT988LS B MEMO ...
Страница 180: ...180 KX FT982LS B KX FT984LS B KX FT988LS B 20 1 1 Operation Panel Section KX FT982 KX FT984 ...
Страница 181: ...181 KX FT982LS B KX FT984LS B KX FT988LS B 20 1 2 Operation Panel Section KX FT988 ...
Страница 182: ...182 KX FT982LS B KX FT984LS B KX FT988LS B 20 1 3 Upper Cabinet Section ...
Страница 183: ...183 KX FT982LS B KX FT984LS B KX FT988LS B 20 1 4 Lower Cabinet Section ...
Страница 184: ...184 KX FT982LS B KX FT984LS B KX FT988LS B 20 1 5 Gear Block Section ...
Страница 185: ...185 KX FT982LS B KX FT984LS B KX FT988LS B 20 1 6 Screws ...
Страница 186: ...186 KX FT982LS B KX FT984LS B KX FT988LS B 20 1 7 Accessories and Packing Materials ...