Orion II Schematic Index

Click Here to Download All Schematics or Click each individual schematic below.

• A0 - Input / Output
  • 81908_1.PDF - 1 / 5 vfoA
  • 81908_2.PDF - 2 / 5 band data
  • 81908_3.PDF - 3 / 5 antenna relays
  • 81908_4.PDF - 4 / 5 vfoB
  • 81908_5.PDF - 5 / 5 rear panel RCA and DC

• A1 - Lowpass Filter - T/R relay
  • 81909.PDF

• A2 - PA
  • 566PA.PDF

• A3 - RF Converter
  • A3_Layout1_(1).PDF - 1 / 3
  • PRE_Model_(1).PDF - 2 / 3 Preselector
  • MX_Model_(1).PDF - 3 / 3 Trans / Receive

• A4 - 9 Mhz IF
  • 1stIF.PDF

• A5
  • IF_CONVERTER.PDF - 1 / 6 IF Converter
  • AGC.PDF - 2 / 6 AGC Detector
  • ALC.PDF - 3 / 6 ALC Circuitry
  • 2ndLO.PDF - 4 / 6 2nd LO
  • TX.PDF - 5 / 6 Transmit Chain
  • IFCV.PDF - 6 / 6 IFC V1

• A6
  • 81907_1.PDF - 1 / 4 Sub Receiver
  • 81907_2.PDF - 2 / 4 PLL
  • 81907_3.PDF - 3 / 4 Preselector
  • 81907_4.PDF - 4 / 4 Receiver

• A7 - CPU / DSP Logic
  • MAIN.PDF - 1 / 11 Main CPU
  • TR.PDF - 2 / 11 T/R Drivers
  • RS232.PDF - 3 / 11 RS-232
  • SPR.PDF - 4 / 11 Spare to CPU Interface
  • PTT.PDF - 5 / 11 PTT Driver
  • AMP.PDF - 6 / 11 Amplifier Loop
  • POWER.PDF - 7 / 11 Power
  • MEMORY.PDF - 8 / 11 Memory
  • LCD.PDF - 9 / 11 LCD
  • SHARC.PDF - 10 / 11 Sharc DSP
  • ADC.PDF - 11 / 11 Analog to Digital

• A8 - Keypad
  • 566KEYPAD.PDF Front panel switches, encoders, LEDs, mic jack

• A9 - Power Dist Board
  • 81936.PDF

• A10 - Synthesizer
  • 565synC.PDF

• A11 - Motherboard
  • 81916.PDF

• A12 - Rear Connector Board
  • CONNECTOR.PDF

• A13 - Sweep Amp
  • 81957.PDF

• A15 - Audio
  • 566AUDIO_Model_(1).PDF SSM2166 Mic preamp, Main/sub rx CODEC and amps

• Autotuner
  • 78277E_Model_(1).PDF 1 / 4
  • DETECTOR_Model_(1).PDF 2 / 4
  • CPU_Model_(1).PDF 3 / 4
  • RF_Model_(1).PDF 4 / 4