7.9. NCU SECTION
7.9.1. GENERAL
It is composed of bell detection circuit, pulse dial circuit, line amplifier, sidetone circuits, Remote FAX activation circuit, CPC
detection, and a multiplexer.
7.9.2. REMOTE FAX ACTIVATION CIRCUIT
1. Circuit Operation
After detecting the bell signal, another telephone connected to the same line switches to the FAX mode by DTMF signal.
TEL LINE
→
T101
→
R120
→
C113
→
Q101(C-E)
→
C114
→
R114
→
IC101(2-1)
→
CN101(4)
→
{CN517(4)
→
C573
→
R576
→
IC505(60)}
7.9.3. BELL DETECTION CIRCUIT
1. Circuit Operation
The signal waveform for each point is indicated below. The signal (low level section) input to pin 42 of ASIC IC501 on the digital
board is read by ASIC and judged as a bell.
TEL LINE
→
PC101 (1, 2 - 4)
→
IC501 (42)
7.9.4. PULSE DIAL CIRCUIT AND ON / OFF HOOK CIRCUIT
While OFF-HOOK, RLY101 is ON. Q102 turns on by pin (138) of IC501 as well. On the other hand, while ON-HOOK, Q102 turns
OFF by pin (138) of IC501, then the line turns OFF. ON/OFF-HOOK, controlled by pin (138) of IC501, makes the pulse dial
operation possible.
IC501 (138) LINE RLY Low Level
→
CN517 (12)
→
CN101 (12)
→
Q102 OFF
→
RLY101 OFF : DC Loop OFF
IC501 (138) LINE RLY High Level
→
CN517 (12)
→
CN101 (12)
→
Q102 ON
→
RLY101 ON : DC Loop ON
149
KX-FP362BX
Содержание KX-FP362BX
Страница 21: ...4 1 2 COMPONENT LOCATIONS 21 KX FP362BX ...
Страница 32: ...5 2 DISASSEMBLY PROCEDURE 5 2 1 HOW TO REMOVE THE PAPER TRAY AND RECORDING PAPER SUPPORT 32 KX FP362BX ...
Страница 33: ...5 2 2 HOW TO REMOVE THE OPERATION PANEL BLOCK 33 KX FP362BX ...
Страница 34: ...5 2 3 HOW TO REMOVE THE OPERATION BOARD AND LCD 34 KX FP362BX ...
Страница 35: ...5 2 4 HOW TO REMOVE THE IMAGE SENSOR CIS 35 KX FP362BX ...
Страница 36: ...5 2 5 HOW TO REMOVE THE THERMAL HEAD 36 KX FP362BX ...
Страница 37: ...5 2 6 HOW TO REMOVE THE PLATEN ROLLER AND BACK COVER 37 KX FP362BX ...
Страница 38: ...5 2 7 HOW TO REMOVE THE PICKUP ROLLER 38 KX FP362BX ...
Страница 39: ...5 2 8 HOW TO REMOVE THE CASSETTE LEVER 39 KX FP362BX ...
Страница 40: ...5 2 9 HOW TO REMOVE THE BOTTOM FRAME 40 KX FP362BX ...
Страница 41: ...5 2 10 HOW TO REMOVE THE DIGITAL ANALOG POWER SUPPLY SENSOR BOARDS AND AC INLET 41 KX FP362BX ...
Страница 42: ...5 2 11 HOW TO REMOVE THE MOTOR BLOCK AND SEPARATION ROLLER 42 KX FP362BX ...
Страница 43: ...5 2 12 HOW TO REMOVE THE GEARS OF MOTOR BLOCK 43 KX FP362BX ...
Страница 44: ...5 3 INSTALLATION POSITION OF THE LEAD WIRES 44 KX FP362BX ...
Страница 56: ...6 5 THE EXAMPLE OF THE PRINTED LIST 6 5 1 USER MODE Note The above values are the default values 56 KX FP362BX ...
Страница 57: ...6 5 2 SREVICE MODE SETTINGS Note The above values are the default values 57 KX FP362BX ...
Страница 71: ...71 KX FP362BX ...
Страница 85: ...85 KX FP362BX ...
Страница 86: ...CROSS REFERENCE TEST FUNCTIONS P 50 86 KX FP362BX ...
Страница 87: ...CROSS REFERENCE TEST FUNCTIONS P 50 87 KX FP362BX ...
Страница 88: ...CROSS REFERENCE TEST FUNCTIONS P 50 88 KX FP362BX ...
Страница 89: ...CROSS REFERENCE TEST FUNCTIONS P 50 89 KX FP362BX ...
Страница 90: ...90 KX FP362BX ...
Страница 91: ...91 KX FP362BX ...
Страница 92: ...CROSS REFERENCE TEST FUNCTIONS P 50 92 KX FP362BX ...
Страница 96: ...96 KX FP362BX ...
Страница 100: ...I O and Pin No Diagram 100 KX FP362BX ...
Страница 101: ...6 6 7 1 CHECK THE STATUS OF THE DIGITAL BOARD CROSS REFERENCE NG Wave pattern Refer to NG EXAMPLE P 98 101 KX FP362BX ...
Страница 104: ...6 6 7 3 NG EXAMPLE 104 KX FP362BX ...
Страница 108: ...Note Refer to CHECK SHEET P 105 and TEST FUNCTIONS P 50 108 KX FP362BX ...
Страница 110: ...6 6 10 2 TROUBLESHOOTING FLOW CHART 110 KX FP362BX ...
Страница 116: ...6 6 14 THERMAL HEAD SECTION Refer to THERMAL HEAD P 131 116 KX FP362BX ...
Страница 117: ...7 CIRCUIT OPERATIONS 7 1 CONNECTION DIAGRAM 117 KX FP362BX ...
Страница 119: ...7 2 1 GENERAL BLOCK DIAGRAM 119 KX FP362BX ...
Страница 121: ...7 3 2 MEMORY MAP 121 KX FP362BX ...
Страница 130: ...7 4 2 BLOCK DIAGRAM 130 KX FP362BX ...
Страница 133: ...TIMING CHART i Print Duty 50 or less ii Print Duty more than 50 133 KX FP362BX ...
Страница 145: ...b Redundancy Compression Process Coding Mode This unit uses one dimensional MH format 145 KX FP362BX ...
Страница 152: ...152 KX FP362BX ...
Страница 159: ...8 REFERENCE MATERIAL DATA 8 1 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 159 KX FP362BX ...
Страница 162: ...8 3 TEST CHART 8 3 1 ITU T No 1 TEST CHART 162 KX FP362BX ...
Страница 163: ...8 3 2 ITU T No 2 TEST CHART 163 KX FP362BX ...
Страница 164: ...9 FIXTURES AND TOOLS 164 KX FP362BX ...
Страница 165: ...10 CABINET MECHANICAL AND ELECTRICAL PARTS LOCATION 10 1 GENERAL SECTION 165 KX FP362BX ...
Страница 166: ...10 2 OPERATION PANEL SECTION 166 KX FP362BX ...
Страница 167: ...10 3 BACK COVER SECTION 167 KX FP362BX ...
Страница 168: ...168 KX FP362BX ...
Страница 169: ...10 4 UPPER CABINET SECTION 169 KX FP362BX ...
Страница 170: ...10 5 LOWER CABINET P C BOARD SECTION CROSS REFERENCE MOTOR SECTION P 171 170 KX FP362BX ...
Страница 171: ...10 6 MOTOR SECTION 10 7 ACTUAL SIZE OF SCREWS 171 KX FP362BX ...
Страница 172: ...11 ACCESSORIES AND PACKING MATERIALS 172 KX FP362BX ...