Frye FONIX 8000 - Page 4

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4.1.6 The Printer Interface Board has: ....................................................13
4.1.7 The Daughter Board has:............................................................14
4.1.8 The Front Panel Keyboard has:......................................................14
4.1.9 The Connector Board has: ..........................................................14
4.1.10 The Chamber Board has:...........................................................14
4.1.11 The Turntable Board has: ..........................................................14
4.1.12 The Breakout Board has: ...........................................................15
4.1.13 The Probe Board has: ..............................................................15
4.2 System Block Diagrams....................................................................15
4.2.1 8000 with 7020 chamber Partial System Block Diagram .............................15
4.2.2 8000 with 8120 Chamber System Block Diagram ....................................16
4.3 Circuit Block Diagrams ....................................................................17
4.3.1 Daughter Board Block Diagram .....................................................17
4.3.2 Connector Board Block Diagram ....................................................18
4.3.3 Chamber Board Block Diagram .....................................................19
4.3.4 Probe Board Block Diagram .........................................................20
4.3.5 Turntable Board Block Diagram ....................................................20
4.3.6 Breakout Board Block Diagram .....................................................21
4.4 Circuits Detailed Description..............................................................21
4.4.1 Source Circuits Signal Flow .........................................................21
4.4.2 Measurement Microphone Circuits Signal Flow .....................................24
4.4.3 SBC to Microcontroller Digital Communication Interface ............................26
4.4.4 Power Supply and Voltage Regulators ..............................................27
4.4.5 Keyboard Interface Circuits.........................................................29
4.4.6 USB Circuits ........................................................................29
4.4.7 Turntable Circuits...................................................................30
4.4.8 LED Circuits.........................................................................30
4.4.9 Battery Simulator Circuits...........................................................31
4.4.10 Thermal Printer Circuits ...........................................................31
4.4.11 Misc Circuits .......................................................................32
Chapter 5: Calibration......................................................... 33
5.1 Microphones.............................................................................33
5.1.1 Calibrating the Coupler Microphone................................................34
5.1.2 Calibrating the Probe Microphone ..................................................34
5.1.3 Calibrating the Rectangular Reference Microphone ................................35
Chapter 6: Service and Repair ................................................. 37
6.1 Fuse Replacement ........................................................................37
6.1.1 Line Fuse Replacement .............................................................37
6.1.2 Connector Board Fuse Replacement ................................................37
6.1.3 Daughter Board Fuse Replacement .................................................37