Runco CX-46HD Control Spec

Summary

Runco CX-46HD North America variant. RS-232 serial control at 115200 baud (default), 8N1, no flow control. ASCII command syntax with ] acknowledgement prefix. Supports power, input routing, audio, PIP, and aspect ratio control.

Transport

protocols:
  - serial
serial:
  baud_rate: 115200  # default; alternatives: 19200, 9600, 2400 (set via ISF Calibration menu)
  data_bits: 8
  parity: none
  stop_bits: 1
  flow_control: none
auth:
  type: UNRESOLVED  # Authentication requirements are not stated in the source

Traits

# inferred from command set:
# - powerable       ([SAB power on/off)
# - routable        ([S4A main input, [+4A next input, [S4G PIP input)
# - levelable       ([S3A volume, [+3A/[-3A volume up/down)
# - queryable       (device returns ]XXXX ack; state query commands not explicitly listed)

Actions

- id: set_audio_volume
  command: "[S3A0###"
  wire_format: "ASCII; volume padded to 3 digits (000-100)"
  label: Set Audio Volume
  kind: action
  params:
    - name: volume
      type: integer
      description: Volume level 000-100

- id: audio_volume_up
  command: "[+3A"
  label: Audio Volume Up
  kind: action
  params: []

- id: audio_volume_down
  command: "[-3A"
  label: Audio Volume Down
  kind: action
  params: []

- id: set_audio_mute
  command: "[S3E000#"
  wire_format: "ASCII; trailing digit 0 or 1, padded to 4 chars total"
  label: Set Audio Mute
  kind: action
  params:
    - name: mute
      type: integer
      description: "0 = not muted, 1 = muted"

- id: set_main_input
  command: "[S4A000#"
  wire_format: "ASCII; trailing digit per input enum"
  label: Set Main Input
  kind: action
  params:
    - name: input
      type: integer
      description: "0=TV, 1=Input1, 2=Input2, 3=Input3, 4=Input4, 6=RGB, 8=HDMI1, 9=HDMI2"

- id: next_main_input
  command: "[+4A"
  label: Next Main AV Input
  kind: action
  params: []

- id: set_aspect_ratio
  command: "[S4E000#"
  wire_format: "ASCII; trailing digit per ratio enum"
  label: Set Aspect Ratio
  kind: action
  params:
    - name: ratio
      type: integer
      description: "0=4:3, 1=VirtualWide, 2=Letterbox, 3=16:9"

- id: set_pip_input
  command: "[S4G000#"
  wire_format: "ASCII; trailing digit per input enum"
  label: Set PIP Input
  kind: action
  params:
    - name: input
      type: integer
      description: "0=TV, 1=Input1, 2=Input2, 3=Input3, 4=Input4, 6=RGB, 8=HDMI1, 9=HDMI2"

- id: next_pip_input
  command: "[+4G"
  label: Next PIP AV Input
  kind: action
  params: []

- id: set_power
  command: "[SAB000#"
  wire_format: "ASCII; 0=standby, 1=on"
  label: Set Power
  kind: action
  params:
    - name: power
      type: integer
      description: "0 = standby, 1 = on"

- id: set_caption
  command: "[SCA000#"
  wire_format: "ASCII; 0=off, 1=on"
  label: Set Caption On/Off
  kind: action
  params:
    - name: caption
      type: integer
      description: "0 = off, 1 = on"

- id: set_major_channel_air
  command: "[SCB00##"
  wire_format: "ASCII; ## = 01-99 (AIR)"
  label: Set Major Channel (AIR)
  kind: action
  params:
    - name: channel
      type: integer
      description: "## = 01-99 for AIR"

- id: set_major_channel_cable
  command: "[SCB1###"
  wire_format: "ASCII; ### = 001-125 (CABLE)"
  label: Set Major Channel (CABLE)
  kind: action
  params:
    - name: channel
      type: integer
      description: "### = 001-125 for CABLE"

- id: set_minor_channel
  command: "[SCD####"
  wire_format: "ASCII; #### = 0000-9999; must follow major channel command"
  label: Set Minor Channel
  kind: action
  params:
    - name: channel
      type: integer
      description: "#### = 0000-9999. Send major channel command first."

- id: set_pip_mode
  command: "[SDA000#"
  wire_format: "ASCII; 0=OFF, 1=PIP, 2=PBP"
  label: Set PIP Mode
  kind: action
  params:
    - name: mode
      type: integer
      description: "0=OFF, 1=PIP, 2=PBP"

- id: channel_up
  command: "[+CB"
  label: TV Channel Up
  kind: action
  params: []

- id: channel_down
  command: "[-CB"
  label: TV Channel Down
  kind: action
  params: []

- id: set_pip_size
  command: "[SDB000#"
  wire_format: "ASCII; 0=small, 1=medium, 2=large"
  label: Set PIP Size
  kind: action
  params:
    - name: size
      type: integer
      description: "0=small, 1=medium, 2=large"

- id: set_pip_aspect
  command: "[SDE000#"
  wire_format: "ASCII; 0=4:3, 1=16:9"
  label: Set PIP Aspect Ratio
  kind: action
  params:
    - name: aspect
      type: integer
      description: "0=4:3, 1=16:9"

- id: set_pip_position
  command: "[SDF000#"
  wire_format: "ASCII; 0=TL, 1=TR, 2=BL, 3=BR"
  label: Set PIP Window Position
  kind: action
  params:
    - name: position
      type: integer
      description: "0=Top/Left, 1=Top/Right, 2=Bottom/Left, 3=Bottom/Right"

- id: remote_key
  command: "[key####"
  wire_format: "ASCII; #### = 4-digit keycode from source table"
  label: Remote Control Button
  kind: action
  params:
    - name: keycode
      type: integer
      values: [2, 15, 4, 5, 6, 8, 9, 10, 12, 13, 14, 35, 17, 23, 105, 27, 28, 1, 102, 101, 19, 3, 62, 31, 40, 43, 39, 126, 7, 16, 18, 11, 46, 26, 100, 63, 47, 34, 32, 37, 52, 33, 36, 53, 54, 24, 91, 57, 45, 44, 55]
      description: "Allowed remote keycode; encode as exactly four decimal digits, including leading zeros, after [key."

Feedbacks

# Acknowledgement format: ]XXXX after valid command
# Error responses: >MAX (value too high), <MIN (value too low), -N/A (unrecognized command)
# UNRESOLVED: no explicit query commands returning device state found

Variables

# UNRESOLVED: no discrete settable parameters beyond actions; no variable readback documented

Events

# UNRESOLVED: no unsolicited event notifications documented

Macros

# UNRESOLVED: no multi-step macro sequences described in source

Safety

confirmation_required_for: []
interlocks: []
# UNRESOLVED: no safety warnings or interlock procedures in source

Notes

Commands are ASCII, not case-sensitive. No carriage return required. Valid commands return ]XXXX where XXXX is the four-digit command code. Invalid parameter range returns >MAX or <MIN. Unrecognized command returns -N/A.

Baud rate configurable via ISF Calibration menu: 115200 (default), 19200, 9600, 2400.

Pin assignments: Pin 2 = RX, Pin 3 = TX, Pin 5 = Ground. Pins 1,4,6,7,8,9 = NC.

Remote emulation payloads use [key followed by the four-digit keycode below (no closing bracket, no CR):

Provenance

source_domains:
  - hdtvsolutions.com
  - manualslib.com
  - applicationmarket.crestron.com
source_urls:
  - https://www.hdtvsolutions.com/pdf/CX-40HD_CX-46HDmanual_1-1.pdf
  - "https://www.manualslib.com/manual/315434/Runco-Crystal-Series-Cx-40hd.html#product-CX-46HD"
  - https://applicationmarket.crestron.com/runco-cx-46hd-north-america/
  - https://applicationmarket.crestron.com/content/Help/Runco/runco_cx-46hd_v1_0_help.pdf
retrieved_at: 2026-04-29T21:59:40.595Z
last_checked_at: 2026-09-28T05:22:01.181Z

Verification Summary

verdict: verified
checked_at: 2026-09-28T05:22:01.181Z
matched_actions: 21
action_count: 21
confidence: medium
summary: "All 21 parameterized command forms match, including all 51 remote-key values; baud, framing, ranges and major-before-minor sequencing are supported. (9 unresolved item(s) noted in Known Gaps.)"

Known Gaps

- "TCP/IP support not mentioned in source"
- "no explicit query commands returning device state found"
- "no discrete settable parameters beyond actions; no variable readback documented"
- "no unsolicited event notifications documented"
- "no multi-step macro sequences described in source"
- "no safety warnings or interlock procedures in source"
- "TCP/IP or network control not mentioned in source"
- "firmware version compatibility not stated"
- "no query commands for current device state documented"

From the AI4AV catalog (https://ai4av.net) · ODbL-1.0