Sharp/NEC E657Q Control Spec

Summary

The Sharp/NEC E657Q is a large-format display controllable via a binary protocol over RS-232C serial and TCP/IP (wired or wireless LAN, TCP port 7142). This spec covers the command catalogue documented in the Sharp/NEC Projector Control Command Reference Manual (BDT140013 Rev 7.1), including power, input switching, mute, picture/volume/lens adjustment, lens memory, status queries, eco mode, PIP/PbP, edge blending, and information requests.

Transport

protocols:
  - serial
  - tcp
serial:
  baud_rate: 115200  # source lists selectable rates: 115200 / 38400 / 19200 / 9600 / 4800 bps
  data_bits: 8
  parity: none
  stop_bits: 1
  flow_control: none  # UNRESOLVED: flow control not stated; source states "Full duplex" communication mode only
addressing:
  port: 7142
auth:
  type: none  # inferred: no auth procedure in source

Traits

traits:
  - powerable  # inferred: POWER ON (015) / POWER OFF (016) commands present
  - queryable  # inferred: numerous status/information request commands present
  - levelable  # inferred: VOLUME ADJUST, PICTURE ADJUST, LENS CONTROL present

Actions

# Message framing (binary, hex bytes):
#   <class> <command> <ID1> <ID2> <LEN> <DATA...> <CKS>
# - class: 00h-03h (command), 20h-23h (success response), A0h-A3h (error response)
# - ID1 = control ID; ID2 = model code (command examples use 00h 00h; responses echo device ID1/ID2)
# - LEN = data byte count following LEN
# - CKS = low-order byte of the sum of all preceding bytes
# Enum values for input terminal / aspect / eco mode / sub-input that the source
# defers to an absent Appendix are marked UNRESOLVED.
actions:
  - id: error_status_request
    label: "009. ERROR STATUS REQUEST"
    kind: query
    command: "00 88 00 00 00 88"
    params: []

  - id: power_on
    label: "015. POWER ON"
    kind: action
    command: "02 00 00 00 00 02"
    params: []

  - id: power_off
    label: "016. POWER OFF"
    kind: action
    command: "02 01 00 00 00 03"
    params: []

  - id: input_sw_change
    label: "018. INPUT SW CHANGE"
    kind: action
    command: "02 03 00 00 02 01 {input} {checksum}"
    params:
      - name: input
        type: byte
        description: "Input terminal (DATA01). Source example: 06h = video port. Full value list deferred to Appendix 'Supplementary Information by Command'."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes (e.g. input 06h -> CKS 0Eh)."

  - id: picture_mute_on
    label: "020. PICTURE MUTE ON"
    kind: action
    command: "02 10 00 00 00 12"
    params: []

  - id: picture_mute_off
    label: "021. PICTURE MUTE OFF"
    kind: action
    command: "02 11 00 00 00 13"
    params: []

  - id: sound_mute_on
    label: "022. SOUND MUTE ON"
    kind: action
    command: "02 12 00 00 00 14"
    params: []

  - id: sound_mute_off
    label: "023. SOUND MUTE OFF"
    kind: action
    command: "02 13 00 00 00 15"
    params: []

  - id: onscreen_mute_on
    label: "024. ONSCREEN MUTE ON"
    kind: action
    command: "02 14 00 00 00 16"
    params: []

  - id: onscreen_mute_off
    label: "025. ONSCREEN MUTE OFF"
    kind: action
    command: "02 15 00 00 00 17"
    params: []

  - id: picture_adjust
    label: "030-1. PICTURE ADJUST"
    kind: action
    command: "03 10 00 00 05 {target} FF {mode} {value_lo} {value_hi} {checksum}"
    params:
      - name: target
        type: byte
        description: "Adjustment target (DATA01): 00h=Brightness, 01h=Contrast, 02h=Color, 03h=Hue, 04h=Sharpness."
      - name: mode
        type: byte
        description: "Adjustment mode (DATA02): 00h=absolute, 01h=relative."
      - name: value_lo
        type: byte
        description: "Adjustment value low-order 8 bits (DATA03)."
      - name: value_hi
        type: byte
        description: "Adjustment value high-order 8 bits (DATA04)."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: volume_adjust
    label: "030-2. VOLUME ADJUST"
    kind: action
    command: "03 10 00 00 05 05 00 {mode} {value_lo} {value_hi} {checksum}"
    params:
      - name: mode
        type: byte
        description: "Adjustment mode (DATA01): 00h=absolute, 01h=relative."
      - name: value_lo
        type: byte
        description: "Adjustment value low-order 8 bits (DATA02)."
      - name: value_hi
        type: byte
        description: "Adjustment value high-order 8 bits (DATA03)."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes (value 10 -> 27h)."

  - id: aspect_adjust
    label: "030-12. ASPECT ADJUST"
    kind: action
    command: "03 10 00 00 05 18 00 00 {aspect} 00 {checksum}"
    params:
      - name: aspect
        type: byte
        description: "Aspect value (DATA01). Value list deferred to Appendix 'Supplementary Information by Command'."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: other_adjust
    label: "030-15. OTHER ADJUST"
    kind: action
    command: "03 10 00 00 05 {target_lo} {target_hi} {mode} {value_lo} {value_hi} {checksum}"
    params:
      - name: target_lo
        type: byte
        description: "Adjustment target low byte (DATA01). Documented target: 96h = LAMP ADJUST / LIGHT ADJUST."
      - name: target_hi
        type: byte
        description: "Adjustment target high byte (DATA02). Documented: FFh."
      - name: mode
        type: byte
        description: "Adjustment mode (DATA03): 00h=absolute, 01h=relative."
      - name: value_lo
        type: byte
        description: "Adjustment value low-order 8 bits (DATA04)."
      - name: value_hi
        type: byte
        description: "Adjustment value high-order 8 bits (DATA05)."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: information_request
    label: "037. INFORMATION REQUEST"
    kind: query
    command: "03 8A 00 00 00 8D"
    params: []

  - id: filter_usage_information_request
    label: "037-3. FILTER USAGE INFORMATION REQUEST"
    kind: query
    command: "03 95 00 00 00 98"
    params: []

  - id: lamp_information_request_3
    label: "037-4. LAMP INFORMATION REQUEST 3"
    kind: query
    command: "03 96 00 00 02 {lamp} {content} {checksum}"
    params:
      - name: lamp
        type: byte
        description: "Lamp selector (DATA01): 00h=Lamp 1, 01h=Lamp 2 (two-lamp models only)."
      - name: content
        type: byte
        description: "Content (DATA02): 01h=lamp usage time (seconds), 04h=lamp remaining life (%)."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes (lamp1 usage -> 9Ch)."

  - id: carbon_savings_information_request
    label: "037-6. CARBON SAVINGS INFORMATION REQUEST"
    kind: query
    command: "03 9A 00 00 01 {type} {checksum}"
    params:
      - name: type
        type: byte
        description: "Carbon savings type (DATA01): 00h=Total Carbon Savings, 01h=Carbon Savings during operation."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: remote_key_code
    label: "050. REMOTE KEY CODE"
    kind: action
    command: "02 0F 00 00 02 {keycode_lo} {keycode_hi} {checksum}"
    params:
      - name: keycode_lo
        type: byte
        description: "Key code low byte (DATA01), WORD-type key code."
      - name: keycode_hi
        type: byte
        description: "Key code high byte (DATA02)."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes (AUTO -> 18h)."

  - id: shutter_close
    label: "051. SHUTTER CLOSE"
    kind: action
    command: "02 16 00 00 00 18"
    params: []

  - id: shutter_open
    label: "052. SHUTTER OPEN"
    kind: action
    command: "02 17 00 00 00 19"
    params: []

  - id: lens_control
    label: "053. LENS CONTROL"
    kind: action
    command: "02 18 00 00 02 {target} {action} {checksum}"
    params:
      - name: target
        type: byte
        description: "Adjustment target (DATA01). Documented: 06h=Periphery Focus."
      - name: action
        type: byte
        description: "Drive action (DATA02): 00h=Stop, 01h=+1s, 02h=+0.5s, 03h=+0.25s, 7Fh=plus drive, 81h=minus drive, FDh=-0.25s, FEh=-0.5s, FFh=-1s."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: lens_control_request
    label: "053-1. LENS CONTROL REQUEST"
    kind: query
    command: "02 1C 00 00 02 {target} 00 {checksum}"
    params:
      - name: target
        type: byte
        description: "Adjustment target (DATA01)."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: lens_control_2
    label: "053-2. LENS CONTROL 2"
    kind: action
    command: "02 1D 00 00 04 {target} {mode} {value_lo} {value_hi} {checksum}"
    params:
      - name: target
        type: byte
        description: "Lens axis (DATA01). FFh=Stop (mode/value ignored)."
      - name: mode
        type: byte
        description: "Adjustment mode (DATA02): 00h=absolute, 02h=relative."
      - name: value_lo
        type: byte
        description: "Adjustment value low-order 8 bits (DATA03)."
      - name: value_hi
        type: byte
        description: "Adjustment value high-order 8 bits (DATA04)."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: lens_memory_control
    label: "053-3. LENS MEMORY CONTROL"
    kind: action
    command: "02 1E 00 00 01 {operation} {checksum}"
    params:
      - name: operation
        type: byte
        description: "Memory operation (DATA01): 00h=MOVE, 01h=STORE, 02h=RESET."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: reference_lens_memory_control
    label: "053-4. REFERENCE LENS MEMORY CONTROL"
    kind: action
    command: "02 1F 00 00 01 {operation} {checksum}"
    params:
      - name: operation
        type: byte
        description: "Reference memory operation (DATA01): 00h=MOVE, 01h=STORE, 02h=RESET."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: lens_memory_option_request
    label: "053-5. LENS MEMORY OPTION REQUEST"
    kind: query
    command: "02 20 00 00 01 {option} {checksum}"
    params:
      - name: option
        type: byte
        description: "Option (DATA01): 00h=LOAD BY SIGNAL, 01h=FORCED MUTE."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: lens_memory_option_set
    label: "053-6. LENS MEMORY OPTION SET"
    kind: action
    command: "02 21 00 00 02 {option} {value} {checksum}"
    params:
      - name: option
        type: byte
        description: "Option (DATA01): 00h=LOAD BY SIGNAL, 01h=FORCED MUTE."
      - name: value
        type: byte
        description: "Setting value (DATA02): 00h=OFF, 01h=ON."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: lens_information_request
    label: "053-7. LENS INFORMATION REQUEST"
    kind: query
    command: "02 22 00 00 01 00 25"
    params: []

  - id: lens_profile_set
    label: "053-10. LENS PROFILE SET"
    kind: action
    command: "02 27 00 00 01 {profile} {checksum}"
    params:
      - name: profile
        type: byte
        description: "Profile number (DATA01): 00h=Profile 1, 01h=Profile 2."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: lens_profile_request
    label: "053-11. LENS PROFILE REQUEST"
    kind: query
    command: "02 28 00 00 00 2A"
    params: []

  - id: gain_parameter_request_3
    label: "060-1. GAIN PARAMETER REQUEST 3"
    kind: query
    command: "03 05 00 00 03 {name} 00 00 {checksum}"
    params:
      - name: name
        type: byte
        description: "Adjusted value name (DATA01): 00h=BRIGHTNESS, 01h=CONTRAST, 02h=COLOR, 03h=HUE, 04h=SHARPNESS, 05h=VOLUME, 96h=LAMP/LIGHT ADJUST."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes (brightness -> 0Bh)."

  - id: setting_request
    label: "078-1. SETTING REQUEST"
    kind: query
    command: "00 85 00 00 01 00 86"
    params: []

  - id: running_status_request
    label: "078-2. RUNNING STATUS REQUEST"
    kind: query
    command: "00 85 00 00 01 01 87"
    params: []

  - id: input_status_request
    label: "078-3. INPUT STATUS REQUEST"
    kind: query
    command: "00 85 00 00 01 02 88"
    params: []

  - id: mute_status_request
    label: "078-4. MUTE STATUS REQUEST"
    kind: query
    command: "00 85 00 00 01 03 89"
    params: []

  - id: model_name_request
    label: "078-5. MODEL NAME REQUEST"
    kind: query
    command: "00 85 00 00 01 04 8A"
    params: []

  - id: cover_status_request
    label: "078-6. COVER STATUS REQUEST"
    kind: query
    command: "00 85 00 00 01 05 8B"
    params: []

  - id: freeze_control
    label: "079. FREEZE CONTROL"
    kind: action
    command: "01 98 00 00 01 {state} {checksum}"
    params:
      - name: state
        type: byte
        description: "Freeze state (DATA01): 01h=freeze on, 02h=freeze off."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: information_string_request
    label: "084. INFORMATION STRING REQUEST"
    kind: query
    command: "00 D0 00 00 03 00 {type} 01 {checksum}"
    params:
      - name: type
        type: byte
        description: "Information type (DATA01): 03h=Horizontal sync frequency, 04h=Vertical sync frequency."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: eco_mode_request
    label: "097-8. ECO MODE REQUEST"
    kind: query
    command: "03 B0 00 00 01 07 BB"
    params: []

  - id: lan_projector_name_request
    label: "097-45. LAN PROJECTOR NAME REQUEST"
    kind: query
    command: "03 B0 00 00 01 2C E0"
    params: []

  - id: lan_mac_address_request_2
    label: "097-155. LAN MAC ADDRESS STATUS REQUEST2"
    kind: query
    command: "03 B0 00 00 02 9A 00 4F"
    params: []

  - id: pip_picture_by_picture_request
    label: "097-198. PIP/PICTURE BY PICTURE REQUEST"
    kind: query
    command: "03 B0 00 00 02 C5 {item} {checksum}"
    params:
      - name: item
        type: byte
        description: "Item (DATA01): 00h=MODE, 01h=START POSITION, 02h=SUB INPUT / SUB INPUT 1, 09h=SUB INPUT 2, 0Ah=SUB INPUT 3."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: edge_blending_mode_request
    label: "097-243-1. EDGE BLENDING MODE REQUEST"
    kind: query
    command: "03 B0 00 00 02 DF 00 94"
    params: []

  - id: eco_mode_set
    label: "098-8. ECO MODE SET"
    kind: action
    command: "03 B1 00 00 02 07 {value} {checksum}"
    params:
      - name: value
        type: byte
        description: "Eco mode value (DATA01). Value list deferred to Appendix 'Supplementary Information by Command'."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: lan_projector_name_set
    label: "098-45. LAN PROJECTOR NAME SET"
    kind: action
    command: "03 B1 00 00 12 2C {name_01} {name_02} {name_03} {name_04} {name_05} {name_06} {name_07} {name_08} {name_09} {name_10} {name_11} {name_12} {name_13} {name_14} {name_15} {name_16} 00 {checksum}"
    params:
      - name: name
        type: string
        description: "Projector name (DATA01-16), up to 16 bytes, NUL-terminated."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: pip_picture_by_picture_set
    label: "098-198. PIP/PICTURE BY PICTURE SET"
    kind: action
    command: "03 B1 00 00 03 C5 {item} {value} {checksum}"
    params:
      - name: item
        type: byte
        description: "Item (DATA01): 00h=MODE, 01h=START POSITION, 02h=SUB INPUT / SUB INPUT 1, 09h=SUB INPUT 2, 0Ah=SUB INPUT 3."
      - name: value
        type: byte
        description: "Setting value (DATA02). MODE: 00h=PIP, 01h=PICTURE BY PICTURE. START POSITION: 00h=TOP-LEFT, 01h=TOP-RIGHT, 02h=BOTTOM-LEFT, 03h=BOTTOM-RIGHT. Sub-input values deferred to Appendix."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: edge_blending_mode_set
    label: "098-243-1. EDGE BLENDING MODE SET"
    kind: action
    command: "03 B1 00 00 03 DF 00 {value} {checksum}"
    params:
      - name: value
        type: byte
        description: "Edge blending setting (DATA01): 00h=OFF, 01h=ON."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

  - id: base_model_type_request
    label: "305-1. BASE MODEL TYPE REQUEST"
    kind: query
    command: "00 BF 00 00 01 00 C0"
    params: []

  - id: serial_number_request
    label: "305-2. SERIAL NUMBER REQUEST"
    kind: query
    command: "00 BF 00 00 02 01 06 C8"
    params: []

  - id: basic_information_request
    label: "305-3. BASIC INFORMATION REQUEST"
    kind: query
    command: "00 BF 00 00 01 02 C2"
    params: []

  - id: audio_select_set
    label: "319-10. AUDIO SELECT SET"
    kind: action
    command: "03 C9 00 00 03 09 {input} {setting} {checksum}"
    params:
      - name: input
        type: byte
        description: "Input terminal (DATA01). Value list deferred to Appendix 'Supplementary Information by Command'."
      - name: setting
        type: byte
        description: "Audio setting (DATA02): 00h=terminal specified in DATA01, 01h=BNC, 02h=COMPUTER."
      - name: checksum
        type: byte
        description: "Computed: low byte of sum of all preceding bytes."

Feedbacks

feedbacks:
  - id: power_state
    type: enum
    description: "From RUNNING STATUS REQUEST (078-2) DATA03: 00h=Standby, 01h=Power on, FFh=Not supported."
    values: [standby, power_on]
  - id: operation_status
    type: enum
    description: "From RUNNING STATUS REQUEST (078-2) DATA06: 00h=Standby(Sleep), 04h=Power on, 05h=Cooling, 06h=Standby(error), 0Fh=Standby(Power saving), 10h=Network standby."
    values: [standby_sleep, power_on, cooling, standby_error, standby_power_saving, network_standby]
  - id: cooling_process
    type: enum
    description: "From RUNNING STATUS REQUEST (078-2) DATA04: 00h=Not executed, 01h=During execution."
    values: [idle, running]
  - id: picture_mute_state
    type: enum
    description: "From MUTE STATUS REQUEST (078-4) DATA01: 00h=Off, 01h=On."
    values: [off, on]
  - id: sound_mute_state
    type: enum
    description: "From MUTE STATUS REQUEST (078-4) DATA02: 00h=Off, 01h=On."
    values: [off, on]
  - id: onscreen_mute_state
    type: enum
    description: "From MUTE STATUS REQUEST (078-4) DATA03: 00h=Off, 01h=On."
    values: [off, on]
  - id: freeze_state
    type: enum
    description: "From BASIC INFORMATION REQUEST (305-3) DATA09: 00h=Off, 01h=On."
    values: [off, on]
  - id: cover_status
    type: enum
    description: "From COVER STATUS REQUEST (078-6) DATA01: 00h=Normal(cover opened), 01h=Cover closed."
    values: [opened, closed]
  - id: eco_mode
    type: raw
    description: "From ECO MODE REQUEST (097-8) DATA01. Value list deferred to Appendix 'Supplementary Information by Command'."
  - id: edge_blending_mode
    type: enum
    description: "From EDGE BLENDING MODE REQUEST (097-243-1) DATA01: 00h=OFF, 01h=ON."
    values: [off, on]
  - id: lamp_usage_time
    type: integer
    unit: seconds
    description: "From LAMP INFORMATION REQUEST 3 (037-4), DATA03-06. Updated at one-minute intervals."
  - id: lamp_remaining_life
    type: integer
    unit: percent
    description: "From LAMP INFORMATION REQUEST 3 (037-4), DATA03-06. Negative if replacement deadline exceeded."
  - id: filter_usage_time
    type: integer
    unit: seconds
    description: "From FILTER USAGE INFORMATION REQUEST (037-3) DATA01-04. -1 if no time defined."
  - id: error_status
    type: raw
    description: "From ERROR STATUS REQUEST (009) DATA01-12 bitfield. 0=normal, 1=error."
  - id: model_name
    type: string
    description: "From MODEL NAME REQUEST (078-5) DATA01-32 (NUL-terminated)."
  - id: serial_number
    type: string
    description: "From SERIAL NUMBER REQUEST (305-2) DATA01-16 (NUL-terminated)."
  - id: mac_address
    type: string
    description: "From LAN MAC ADDRESS STATUS REQUEST2 (097-155) DATA01-06."
  - id: execution_result
    type: enum
    description: "Generic result for adjust commands (030-x): DATA01+DATA02 = 0000h success, other = error."
    values: [success, error]

Variables

variables:
  - id: volume
    type: integer
    description: "Set via VOLUME ADJUST (030-2). Range queryable via GAIN PARAMETER REQUEST 3 (060-1, name 05h)."
  - id: brightness
    type: integer
    description: "Set via PICTURE ADJUST (030-1, target 00h). Range via GAIN PARAMETER REQUEST 3 (060-1, name 00h)."
  - id: contrast
    type: integer
    description: "Set via PICTURE ADJUST (030-1, target 01h). Range via GAIN PARAMETER REQUEST 3 (060-1, name 01h)."
  - id: color
    type: integer
    description: "Set via PICTURE ADJUST (030-1, target 02h). Range via GAIN PARAMETER REQUEST 3 (060-1, name 02h)."
  - id: hue
    type: integer
    description: "Set via PICTURE ADJUST (030-1, target 03h). Range via GAIN PARAMETER REQUEST 3 (060-1, name 03h)."
  - id: sharpness
    type: integer
    description: "Set via PICTURE ADJUST (030-1, target 04h). Range via GAIN PARAMETER REQUEST 3 (060-1, name 04h)."
  - id: lamp_light_adjust
    type: integer
    description: "Set via OTHER ADJUST (030-15, target 96h/FFh). Range via GAIN PARAMETER REQUEST 3 (060-1, name 96h)."
  - id: projector_name
    type: string
    description: "Set via LAN PROJECTOR NAME SET (098-45), up to 16 bytes."

Events

events: []  # UNRESOLVED: source describes no unsolicited notifications; all responses are command-triggered.

Macros

macros: []  # UNRESOLVED: source documents no multi-step command sequences.

Safety

confirmation_required_for:
  - power_off  # source: during power-off (incl. cooling time) no other command accepted
  - power_on   # source: during power-on no other command accepted
interlocks:
  - "POWER ON (015): while turning on, no other command can be accepted."
  - "POWER OFF (016): while turning off (including cooling time), no other command can be accepted."
  - "PICTURE/SOUND/ONSCREEN mute auto-clears on input terminal switch or video signal switch."
  - "SOUND mute also auto-clears on sound volume adjustment."
  - "Commands requiring power return ERR1=02h ERR2=0Dh ('command cannot be accepted because the power is off')."

Notes

• Binary protocol. Each command is a hex byte sequence: <class> <command> <ID1> <ID2> <LEN> <DATA...> <CKS>. The command examples in the source use ID1=00h ID2=00h; responses (class 20h-23h) echo the device's actual control ID and model code.
• Checksum (CKS): low-order byte of the sum of all preceding bytes. Example: 20+81+01+60+01+00 = 103h -> CKS = 03h.
• Response classes: 20h-23h = successful response (mirrors command class); A0h-A3h = error response carrying <ERR1> <ERR2>.
• Error codes (ERR1/ERR2): 00h/00h=unrecognized command; 00h/01h=not supported by model; 01h/00h=invalid value; 01h/01h=invalid input terminal; 02h/0Dh=power off; 02h/0Eh=execution failed; 02h/0Fh=no authority; 03h/00h=incorrect gain number; 03h/02h=adjustment failed. (See source §2.4 for full list.)
• Lens control: after sending 7Fh (plus drive) or 81h (minus drive) in LENS CONTROL DATA02, stop by sending 00h. While the lens is being driven, the lens position can be controlled without a stop by re-issuing the same command.
• Usage-time granularity: lamp/filter usage times are obtainable in one-second units but updated at one-minute intervals.
• Appendix dependency: input terminal values, aspect values, eco mode values, base model types, and PIP sub-input values are referenced in the source as residing in an Appendix ("Supplementary Information by Command") that is not present in the provided text. These enums are therefore UNRESOLVED.

Spec done. 53 actions, all source-documented commands enumerated, no assumed values. Key gaps: missing appendix enums, flow_control, E657Q-vs-projector mapping unverified.

## Provenance

```yaml
source_domains:
  - sharpdisplays.eu
source_urls:
  - https://www.sharpdisplays.eu/p/download/cp/Products/Projectors/Shared/CommandLists/NEC-ExternalControlManual-english.pdf
retrieved_at: 2026-06-16T19:32:30.626Z
last_checked_at: 2026-06-17T19:44:59.399Z

Verification Summary

verdict: verified
checked_at: 2026-06-17T19:44:59.399Z
matched_actions: 53
action_count: 53
confidence: medium
summary: "All 53 spec actions matched verbatim against source commands §3.1-§3.53; transport parameters fully verified. (10 unresolved item(s) noted in Known Gaps.)"

Known Gaps

- "This source manual is titled \"Projector Control Command Reference Manual\" and describes a generic Sharp/NEC projector command set. Mapping to the E657Q display model is operator-provided; command support on the specific E657Q hardware/firmware is not verified in this source."
- "Appendix \"Supplementary Information by Command\" (input terminal values, aspect values, base model types, eco mode values, sub-input values) is referenced but not included in the provided source text. Several enum values for input/aspect/eco remain unspecified."
- "firmware version compatibility not stated in source"
- "flow control not stated; source states \"Full duplex\" communication mode only"
- "source describes no unsolicited notifications; all responses are command-triggered."
- "source documents no multi-step command sequences."
- "Appendix \"Supplementary Information by Command\" not provided — input terminal, aspect, eco mode, base model type, and PIP sub-input enum lists incomplete."
- "flow_control not stated in source."
- "source is a generic projector command manual; confirmation that E657Q (a display) implements this full command set is not present in the source."
- "firmware version compatibility not stated in source."

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