30
KX-MB1520FX7/KX-MB1520FX8/KX-MB1520FXW/KX-MB1530FX7/KX-MB1530FXW
6.4.
NCU Section
6.4.1.
General
NCU is the with the telephone line. It is composed of Bell detection circuit, Pulse dial circuit, Line amplifier and sidetone circuits. The
following is a brief explanation of each circuit.
6.4.2.
EXT. TEL. Line Relay (RLY100)
1.
Circuit Operation
Normally, this relay switches to the external telephone side and switches to the open side while OFF-HOOK.
IC300 (U25) High Level
Q201 ON
RLY100 (ON)
6.4.3.
Bell Detection Circuit
1.
Circuit Operation
The signal waveform for each point is indicated below. The signal (low level section) input to L23 of SOC(IC300) on the Main
board.
TEL LINE
PC103 (1, 2
4)
IC300 (L23)
6.4.4.
Pulse Dial Circuit
The pulse dial is generated by operating the transistor Q201 while OFF-HOOK (RLY100 ON) condition.
Make state:
IC300 (E25) High Level
Q203 ON
PC104 ON
Break state:
IC300(E25) LOW Level
Q203 OFF
PC104 OFF
6.4.5.
Line Amplifier and Side Tone Circuit
1.
Circuit Operation
The reception signal output from the line transformer T100 is input to pin (2) of IC201 via C256, R224 and then the signal is
amplified at pin (1) of IC201 and sent to the reception system at through the LPF.
Содержание KX-MB1520FX7
Страница 5: ...5 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 19 2 5 ADF Sensor Board 394 ...
Страница 52: ...52 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 6 10 3 5 Waveform ...
Страница 55: ...55 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 6 12 LSU Laser Scanning Unit Section ...
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Страница 75: ...75 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW wave form ...
Страница 77: ...77 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW wave form ...
Страница 100: ...100 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 10 1 2 Button Code Table ...
Страница 107: ...107 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW Note The above values are the default values ...
Страница 108: ...108 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW KX MB1530 ...
Страница 109: ...109 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW Note The above values are the default values ...
Страница 140: ...140 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 12 3 8 2 The Recording Paper Is Waved or Wrinkled ...
Страница 141: ...141 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 12 3 8 3 Skew ...
Страница 143: ...143 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 12 3 8 5 The Recording Paper Jam ...
Страница 147: ...147 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 12 3 9 2 Skew ADF ...
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Страница 162: ...162 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW CROSS REFERENCE Test Functions P 98 ...
Страница 163: ...163 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW CROSS REFERENCE Test Functions P 98 ...
Страница 164: ...164 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW CROSS REFERENCE Test Functions P 98 ...
Страница 165: ...165 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW CROSS REFERENCE Test Functions P 98 ...
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Страница 168: ...168 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW CROSS REFERENCE Test Functions P 98 ...
Страница 175: ...175 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW Toner detection flow ...
Страница 176: ...176 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 6 Drum Life detection flow ...
Страница 178: ...178 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 12 3 16 Motor Section 12 3 16 1 Main Motor ...
Страница 179: ...179 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 12 3 16 2 FB Motor KX MB1520 only ...
Страница 180: ...180 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 12 3 16 3 FB MOTOR KX MB1530 only ...
Страница 181: ...181 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 12 3 16 4 ADF MOTOR KX MB1530 only ...
Страница 183: ...183 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 12 3 18 CIS Control Section ...
Страница 187: ...187 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 12 3 20 High Voltage Section 1 Main ...
Страница 188: ...188 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 2 CHG 3 TRA ...
Страница 189: ...189 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 4 DEV DC ...
Страница 190: ...190 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 5 DEV AC ...
Страница 191: ...191 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 6 TRA ...
Страница 193: ...193 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 2 Confirmation of the main unit ...
Страница 196: ...196 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW Waveform of normal operation ...
Страница 199: ...199 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 12 3 23 2 Troubleshooting Flow Chart ...
Страница 210: ...210 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 1 Flow Chart for Disassembly ...
Страница 212: ...212 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 4 How to Remove Right Cover ...
Страница 213: ...213 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 5 How to Remove Left Cover ...
Страница 214: ...214 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 6 How to Remove FB Unit KX MB1520 only ...
Страница 215: ...215 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 7 How to Remove FB Unit KX MB1530 only ...
Страница 216: ...216 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 8 How to Remove Upper Cabinet Cover ...
Страница 217: ...217 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 9 How to Remove Bottom Plate ...
Страница 218: ...218 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 10 How to Remove LVPS ...
Страница 221: ...221 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 15 How to Remove Clutch Gear Cover ...
Страница 222: ...222 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 16 How to Remove Pick up Roller ...
Страница 223: ...223 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 17 How to Remove Operation Panel Unit ...
Страница 224: ...224 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 18 How to Remove ADF Unit KX MB1530 only ...
Страница 225: ...225 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 19 How to Disassemble FB Unit KX MB1520 only ...
Страница 226: ...226 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 20 How to Disassemble FB Unit KX MB1530 only ...
Страница 227: ...227 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 21 How to Take off glass pad KX MB1530 only ...
Страница 229: ...229 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 23 How to Remove LSU and Glasses ...
Страница 236: ...236 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 24 7 Fuser section ...
Страница 251: ...251 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 15 4 7 Low Voltage Power Supply Board ...
Страница 255: ...255 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 15 6 1 NG Example ...
Страница 256: ...256 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 15 7 Test Chart 15 7 1 ITU T No 1 Test Chart ...
Страница 257: ...257 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 15 7 2 ITU T No 2 Test Chart ...
Страница 258: ...258 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW Memo ...
Страница 263: ...263 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW Memo ...
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Страница 288: ...288 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW Memo ...
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Страница 301: ...301 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 18 1 3 Top Cover Section 2 21 22 23 24 25 B 20 ...
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