14
KX-FC265CX-S
6.2.
General Block
The following is an outline of each device IC on the digital board. (Refer to
(P.15).).
1. ASIC (IC10)
Composed mainly of an address decoder and a modem control.
Controls the general FAX operations.
Controls the operation panel I/F.
Controls the thermal head I/F and CIS I/F.
Performs the image processing.
CPU and Real time clock
Provides the reset pulse for each of the major ICs.
2. Flash ROM (IC16)
Contains all of the program instructions on the unit operations.
This memory is used mainly for the parameter working in the storage area.
3. Dynamic RAM (IC17)
This memory is used mainly for the parameter working in the storage area.
4. MODEM (IC3)
Performs the modulation and the demodulation for FAX communication.
5. Read Section
CIS image sensor to read transmitted documents.
6. Motor Driver (IC401)
Drives the transmission motor and the reception motor.
7. Thermal Head
Contains heat-emitting elements for dot matrix image printing.
8. BBIC (
B
ase
B
and IC): IC4
Handling all the audio, signal and data processing needed in a DECT base unit
Controlling the DECT specific physical layer and radio section (
B
urst
M
odule
C
ontroller section)
ADPCM codec filter for speech encoding and speech decoding (DSP section)
Echo-cancellation and Echo-suppression (DSP section)
Any tones (tone, sidetone, ringing tone, etc.) generation (DSP section)
DTMF receiver (DSP section)
Clock Generation for RF Module
ADC, DAC, timer, and power control circuitry
All interfaces (ex: RF module, EEPROM, LED, Analog Front End, etc.)
9. RF Module: IC28
PLL Oscillator
Detector
Compress/Expander
First/Second Mixer
Amplifier for transmission and reception
10. FLASH MEMORY: IC23
Voice Prompt (TAM) D/L (
D
own
L
oad) Area
Programming for BBIC (IC4)
11. EEPROM: IC22
Temporary operating parameters (for RF, etc.)
12. Sensor Section
Composed of a cover open and film end switch, a document set switch, a document top switch, a paper top sensor and a
motor position switch.
13. Power Supply Board Switching Section
Su4V, +6V and +24V to the unit.
Summary of Contents for KX-FC265CX-S
Page 20: ...20 KX FC265CX S 6 4 2 Block Diagram ...
Page 22: ...22 KX FC265CX S ...
Page 58: ...58 KX FC265CX S Note Refer to Program Mode Table P 99 ...
Page 66: ...66 KX FC265CX S 11 2 Cordless Handset ...
Page 69: ...69 KX FC265CX S 11 3 2 Service Mode Settings Note The above values are the default values ...
Page 77: ...77 KX FC265CX S Countermeasure ...
Page 78: ...78 KX FC265CX S REFERENCE Test Mode P 59 ...
Page 79: ...79 KX FC265CX S REFERENCE Test Mode P 59 ...
Page 80: ...80 KX FC265CX S REFERENCE Test Mode P 59 ...
Page 81: ...81 KX FC265CX S REFERENCE Test Mode P 59 ...
Page 82: ...82 KX FC265CX S ...
Page 83: ...83 KX FC265CX S REFERENCE Test Mode P 59 ...
Page 84: ...84 KX FC265CX S REFERENCE Test Mode P 59 ...
Page 88: ...88 KX FC265CX S ...
Page 113: ...113 KX FC265CX S ...
Page 120: ...120 KX FC265CX S I O and Pin No Diagram ...
Page 122: ...122 KX FC265CX S Other NG example while the power is ON and the LCD displays the following ...
Page 123: ...123 KX FC265CX S 12 5 5 2 NG Example ...
Page 127: ...127 KX FC265CX S 12 5 7 2 Troubleshooting Flow Chart ...
Page 133: ...133 KX FC265CX S 12 5 11 Thermal Head Section Note Refer to Thermal Head P 21 ...
Page 142: ...142 KX FC265CX S 13 Service Fixture Tools ...
Page 147: ...147 KX FC265CX S 14 3 Disassembly Procedure 14 3 1 How to Remove the Image Sensor CIS ...
Page 148: ...148 KX FC265CX S 14 3 2 How to Remove the Thermal Head ...
Page 149: ...149 KX FC265CX S ...
Page 150: ...150 KX FC265CX S 14 3 3 How to Remove the Bottom Frame ...
Page 151: ...151 KX FC265CX S 14 3 4 How to Remove the P C Boards and Speaker ...
Page 152: ...152 KX FC265CX S 14 3 5 How to Remove the Power Supply Board and AC Cord ...
Page 153: ...153 KX FC265CX S 14 3 6 How to Remove the Gear Block and Separation Roller ...
Page 154: ...154 KX FC265CX S 14 3 7 How to Remove the Gears Motors and Arms of the Gear Block ...
Page 155: ...155 KX FC265CX S ...
Page 156: ...156 KX FC265CX S 14 3 8 How to Remove the Charger Board A ...
Page 157: ...157 KX FC265CX S 14 3 9 How to Remove the Back Cover ...
Page 158: ...158 KX FC265CX S 14 3 10 How to Remove the Platen Roller and Lock Lever ...
Page 159: ...159 KX FC265CX S ...
Page 160: ...160 KX FC265CX S 14 3 11 How to Remove the Pickup Roller and Antenna ...
Page 161: ...161 KX FC265CX S 14 3 12 How to Remove the Operation Panel ...
Page 162: ...162 KX FC265CX S 14 3 13 How to Remove the Operation Board MIC Board and LCD ...
Page 163: ...163 KX FC265CX S 14 3 14 How to Remove the Separation Holder and Exit Roller ...
Page 164: ...164 KX FC265CX S 14 3 15 Installation Position of the Lead Wires 14 3 15 1 Lower Section ...
Page 165: ...165 KX FC265CX S ...
Page 166: ...166 KX FC265CX S ...
Page 167: ...167 KX FC265CX S ...
Page 168: ...168 KX FC265CX S 14 3 15 2 Operation Panel Section ...
Page 169: ...169 KX FC265CX S 14 3 15 3 Back Cover Section ...
Page 170: ...170 KX FC265CX S 14 3 16 How to Remove the Cordless Handset Board ...
Page 171: ...171 KX FC265CX S 14 3 16 1 How to Replace the LCD ...
Page 200: ...200 KX FC265CX S 17 1 7 Cordless Handset Board ...
Page 205: ...205 KX FC265CX S 17 4 Test Chart 17 4 1 ITU T No 1 Test Chart ...
Page 206: ...206 KX FC265CX S 17 4 2 ITU T No 2 Test Chart ...
Page 207: ...207 KX FC265CX S 17 4 3 Test Chart ...
Page 237: ...237 KX FC265CX S Memo ...
Page 239: ...239 KX FC265CX S Memo ...
Page 266: ...266 KX FC265CX S ...
Page 267: ...267 KX FC265CX S YK KXFC265CXS ...