Panasonic KX-TDA200UA Service Manual ▷ View online
8.3. BACK BOARD SIGNAL CONNECTION DIAGRAM
8.3.1. CT Bus System Connection Diagram
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KX-TDA200UA
8.3.2. EC Bus System Connection Diagram
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KX-TDA200UA
8.3.3. System Control and Analog Signal Connection Diagram
8.3.4. Power Supply System Connection Diagram
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KX-TDA200UA
9 MPR CARD CIRCUIT OPERATION
9.1. MPR CARD
9.1.1. Outline
1) Function
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• System Control
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• Circuit Switching (includes gain adjustment function)
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• Conference Call (3 people x 8 ~ 8 people x 3)
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• MOH
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• PAGING
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• Clock
2) Configuration
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• Power Supply: DC/DC Converter
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• CPU: HITACHI SH7709S (133MHz)
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• ASIC: Our own products
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• ROM: 4Mbit x 1 (for boot programs)
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• SDRAM: 64Mbit x 2 (for work area)
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• SRAM: 4Mbit x 2 (for user data backup)
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• SD card I/F (for operating programs) x 1
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• USB I/F (for PC programming) x 1
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• MOH: External sound input x 2
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• PAGING: External output x 2
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• Expanded memory connector x 1
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• Modem card connector x 1
3) Operation Rating
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• Power Input : +15V
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• Power Output : +15V (for MOH)
+3.3V (for I/O)
+3.3VBB (back board signal line pull-up)
+3.3VB (for SRAM backup)
+1.8V (for CPU core)
+1.9VB (for clocking backup)
±9.4V (for RS-232C driver/receiver)
+5VRMT unused (for remote card)
+5V (for RS-232C driver/receiver)
+3.3VBB (back board signal line pull-up)
+3.3VB (for SRAM backup)
+1.8V (for CPU core)
+1.9VB (for clocking backup)
±9.4V (for RS-232C driver/receiver)
+5VRMT unused (for remote card)
+5V (for RS-232C driver/receiver)
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KX-TDA200UA
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