Connection Diagram; General Block Diagram - Panasonic KX-F900 Service Manual

I KX-F900 J
CIRCUIT OPERATIONS
Page
1. Connection Diagram ........................................................................ 128
2. General Block Diagram ........................................................... 129-130
3. Control Section ........................................................................ 131-136
3-1. Block Diagram ................................................................... 132
3-2. Reset Circuit ...................................................................... 133
3-3. SRAM and RTC Back up Circuit ....................................... 134
3-4. Supervision circuit for Thermal Head Temperature .......... 135
3-5. LED Array .......................................................................... 136
4. Facsimile Section ..................................................................... 137~145
4-1. Image Data Flow during Facsimile Operation ........... 137, 138
4-2. Thermal Head ............................................................ 139, 140
4-3. Read Section ..................................................................... 141
4-4. Stepping Motor Drive Section ........................................... 142
4-5. Sensor and Switches ................................................ 143~145
5. MODEM Section ...................................................................... 146~152
5-1. Function ..................................................................... 146-151
5-2. MODEM Circuit Operation ................................................ 152
6. Explanation of Analog Section Block Diagram ........................ 153, 154
7. NCU Section ............................................................................ 155, 156
8. ITS and Monitor Section .......................................................... 157, 158
9. TAM Interface Section ............................................................ 159-161
10. Operation Panel ............................................................................. 162
11. LCD COG Type .............................................................................. 163
12. Switching Power Supply Section ........................................... t 64-166
13. Cordless Section .................................................................... 167~183
13-1. Explanation of Data Communication ........................ 167-170
13-2.
13-3.
13-4.
13-5.
13-6.
13-7.
Frequency Table ................................................................ 170
Block diagram of Cordless Base Unit ....................... 171,172
Circuit Operation of Cordless Base Unit ................... 173, 174
Circuit Operation of RF Unit ...................................... 175-177
Block diagram of Portable Handset .......................... 178, 179
Circuit Operation of Portable Handset ...................... 180~183
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