Sharp/NEC E498 Control Spec

Summary

Sharp/NEC projector controlled via RS-232C serial or TCP/IP LAN. Binary hex-byte protocol with checksum. Covers power, input switching, mutes, picture/volume/aspect adjustment, lens control, status queries, and system settings. TCP port 7142.

Transport

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

Traits

- powerable   # inferred from POWER ON/OFF commands
- queryable   # inferred from numerous REQUEST/STATUS query commands
- levelable   # inferred from VOLUME ADJUST and PICTURE ADJUST commands

Actions

- id: power_on
  label: Power On
  kind: action
  command: "02h 00h 00h 00h 00h 02h"
  params: []

- id: power_off
  label: Power Off
  kind: action
  command: "02h 01h 00h 00h 00h 03h"
  params: []

- id: input_sw_change
  label: Input Switch Change
  kind: action
  command: "02h 03h 00h 00h 02h 01h {data01} {cks}"
  params:
    - name: data01
      type: string
      description: Input terminal value (e.g. 06h for video port); see source appendix "Supplementary Information by Command" for full value list
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: picture_mute_on
  label: Picture Mute On
  kind: action
  command: "02h 10h 00h 00h 00h 12h"
  params: []

- id: picture_mute_off
  label: Picture Mute Off
  kind: action
  command: "02h 11h 00h 00h 00h 13h"
  params: []

- id: sound_mute_on
  label: Sound Mute On
  kind: action
  command: "02h 12h 00h 00h 00h 14h"
  params: []

- id: sound_mute_off
  label: Sound Mute Off
  kind: action
  command: "02h 13h 00h 00h 00h 15h"
  params: []

- id: onscreen_mute_on
  label: Onscreen Mute On
  kind: action
  command: "02h 14h 00h 00h 00h 16h"
  params: []

- id: onscreen_mute_off
  label: Onscreen Mute Off
  kind: action
  command: "02h 15h 00h 00h 00h 17h"
  params: []

- id: picture_adjust
  label: Picture Adjust
  kind: action
  command: "03h 10h 00h 00h 05h {data01} FFh {data02} {data03} {data04} {cks}"
  params:
    - name: data01
      type: string
      description: "Adjustment target: 00h=Brightness, 01h=Contrast, 02h=Color, 03h=Hue, 04h=Sharpness"
    - name: data02
      type: string
      description: "Adjustment mode: 00h=absolute, 01h=relative"
    - name: data03
      type: string
      description: Adjustment value (low-order 8 bits)
    - name: data04
      type: string
      description: Adjustment value (high-order 8 bits)
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: volume_adjust
  label: Volume Adjust
  kind: action
  command: "03h 10h 00h 00h 05h 05h 00h {data01} {data02} {data03} {cks}"
  params:
    - name: data01
      type: string
      description: "Adjustment mode: 00h=absolute, 01h=relative"
    - name: data02
      type: string
      description: Adjustment value (low-order 8 bits)
    - name: data03
      type: string
      description: Adjustment value (high-order 8 bits)
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: aspect_adjust
  label: Aspect Adjust
  kind: action
  command: "03h 10h 00h 00h 05h 18h 00h 00h {data01} 00h {cks}"
  params:
    - name: data01
      type: string
      description: Value set for the aspect; see source appendix "Supplementary Information by Command"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: other_adjust
  label: Other Adjust (Lamp/Light Adjust)
  kind: action
  command: "03h 10h 00h 00h 05h {data01} {data02} {data03} {data04} {data05} {cks}"
  params:
    - name: data01
      type: string
      description: "Adjustment target: 96h=LAMP ADJUST / LIGHT ADJUST (DATA02=FFh for this target)"
    - name: data02
      type: string
      description: Sub-target (FFh for LAMP/LIGHT ADJUST)
    - name: data03
      type: string
      description: "Adjustment mode: 00h=absolute, 01h=relative"
    - name: data04
      type: string
      description: Adjustment value (low-order 8 bits)
    - name: data05
      type: string
      description: Adjustment value (high-order 8 bits)
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: remote_key_code
  label: Remote Key Code
  kind: action
  command: "02h 0Fh 00h 00h 02h {data01} {data02} {cks}"
  params:
    - name: data01
      type: string
      description: Key code low byte (e.g. 05h=AUTO, 06h=MENU, 07h=UP, 08h=DOWN, 29h=PICTURE, 4Bh=COMPUTER1)
    - name: data02
      type: string
      description: Key code high byte (typically 00h)
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: shutter_close
  label: Shutter Close
  kind: action
  command: "02h 16h 00h 00h 00h 18h"
  params: []

- id: shutter_open
  label: Shutter Open
  kind: action
  command: "02h 17h 00h 00h 00h 19h"
  params: []

- id: lens_control
  label: Lens Control
  kind: action
  command: "02h 18h 00h 00h 02h {data01} {data02} {cks}"
  params:
    - name: data01
      type: string
      description: "Lens target: 06h=Periphery Focus (and others per source)"
    - name: data02
      type: string
      description: "Content: 00h=Stop, 01h=drive plus 1s, 02h=plus 0.5s, 03h=plus 0.25s, 7Fh=plus continuous, 81h=minus continuous, FDh=minus 0.25s, FEh=minus 0.5s, FFh=minus 1s"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: lens_control_2
  label: Lens Control 2
  kind: action
  command: "02h 1Dh 00h 00h 04h {data01} {data02} {data03} {data04} {cks}"
  params:
    - name: data01
      type: string
      description: "Target: FFh=Stop (when FFh, mode/value not referenced), or lens axis target"
    - name: data02
      type: string
      description: "Adjustment mode: 00h=absolute, 02h=relative"
    - name: data03
      type: string
      description: Adjustment value (low-order 8 bits)
    - name: data04
      type: string
      description: Adjustment value (high-order 8 bits)
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: lens_memory_control
  label: Lens Memory Control
  kind: action
  command: "02h 1Eh 00h 00h 01h {data01} {cks}"
  params:
    - name: data01
      type: string
      description: "Operation: 00h=MOVE, 01h=STORE, 02h=RESET"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: reference_lens_memory_control
  label: Reference Lens Memory Control
  kind: action
  command: "02h 1Fh 00h 00h 01h {data01} {cks}"
  params:
    - name: data01
      type: string
      description: "Operation: 00h=MOVE, 01h=STORE, 02h=RESET"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: lens_memory_option_set
  label: Lens Memory Option Set
  kind: action
  command: "02h 21h 00h 00h 02h {data01} {data02} {cks}"
  params:
    - name: data01
      type: string
      description: "Option: 00h=LOAD BY SIGNAL, 01h=FORCED MUTE"
    - name: data02
      type: string
      description: "Setting value: 00h=OFF, 01h=ON"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: lens_profile_set
  label: Lens Profile Set
  kind: action
  command: "02h 27h 00h 00h 01h {data01} {cks}"
  params:
    - name: data01
      type: string
      description: "Profile number: 00h=Profile 1, 01h=Profile 2"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: freeze_control
  label: Freeze Control
  kind: action
  command: "01h 98h 00h 00h 01h {data01} {cks}"
  params:
    - name: data01
      type: string
      description: "01h=freeze on, 02h=freeze off"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: eco_mode_set
  label: Eco Mode Set
  kind: action
  command: "03h B1h 00h 00h 02h 07h {data01} {cks}"
  params:
    - name: data01
      type: string
      description: Value set for the eco mode; see source appendix "Supplementary Information by Command"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: lan_projector_name_set
  label: LAN Projector Name Set
  kind: action
  command: "03h B1h 00h 00h 12h 2Ch {data01}-{data16} 00h {cks}"
  params:
    - name: data01_16
      type: string
      description: Projector name (up to 16 bytes, NUL-terminated)
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: pip_picture_by_picture_set
  label: PIP/Picture by Picture Set
  kind: action
  command: "03h B1h 00h 00h 03h C5h {data01} {data02} {cks}"
  params:
    - name: data01
      type: string
      description: "Target: 00h=MODE, 01h=START POSITION, 02h=SUB INPUT/SUB INPUT 1, 09h=SUB INPUT 2, 0Ah=SUB INPUT 3"
    - name: data02
      type: string
      description: "Setting value (varies by DATA01 target; see source for sub input values)"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: edge_blending_mode_set
  label: Edge Blending Mode Set
  kind: action
  command: "03h B1h 00h 00h 03h DFh 00h {data01} {cks}"
  params:
    - name: data01
      type: string
      description: "Setting value: 00h=OFF, 01h=ON"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: audio_select_set
  label: Audio Select Set
  kind: action
  command: "03h C9h 00h 00h 03h 09h {data01} {data02} {cks}"
  params:
    - name: data01
      type: string
      description: Input terminal value; see source appendix "Supplementary Information by Command"
    - name: data02
      type: string
      description: "Setting value: 00h=terminal specified in DATA01, 01h=BNC, 02h=COMPUTER"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

# --- Queries ---

- id: error_status_request
  label: Error Status Request
  kind: query
  command: "00h 88h 00h 00h 00h 88h"
  params: []

- id: information_request
  label: Information Request
  kind: query
  command: "03h 8Ah 00h 00h 00h 8Dh"
  params: []

- id: filter_usage_information_request
  label: Filter Usage Information Request
  kind: query
  command: "03h 95h 00h 00h 00h 98h"
  params: []

- id: lamp_information_request_3
  label: Lamp Information Request 3
  kind: query
  command: "03h 96h 00h 00h 02h {data01} {data02} {cks}"
  params:
    - name: data01
      type: string
      description: "Lamp: 00h=Lamp 1, 01h=Lamp 2 (two-lamp models only)"
    - name: data02
      type: string
      description: "Content: 01h=lamp usage time (seconds), 04h=lamp remaining life (%)"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: carbon_savings_information_request
  label: Carbon Savings Information Request
  kind: query
  command: "03h 9Ah 00h 00h 01h {data01} {cks}"
  params:
    - name: data01
      type: string
      description: "00h=Total Carbon Savings, 01h=Carbon Savings during operation"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: lens_control_request
  label: Lens Control Request
  kind: query
  command: "02h 1Ch 00h 00h 02h {data01} 00h {cks}"
  params:
    - name: data01
      type: string
      description: Lens axis target (same values as Lens Control DATA01)
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: lens_memory_option_request
  label: Lens Memory Option Request
  kind: query
  command: "02h 20h 00h 00h 01h {data01} {cks}"
  params:
    - name: data01
      type: string
      description: "00h=LOAD BY SIGNAL, 01h=FORCED MUTE"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: lens_information_request
  label: Lens Information Request
  kind: query
  command: "02h 22h 00h 00h 01h 00h 25h"
  params: []

- id: lens_profile_request
  label: Lens Profile Request
  kind: query
  command: "02h 28h 00h 00h 00h 2Ah"
  params: []

- id: gain_parameter_request_3
  label: Gain Parameter Request 3
  kind: query
  command: "03h 05h 00h 00h 03h {data01} 00h 00h {cks}"
  params:
    - name: data01
      type: string
      description: "Adjusted value name: 00h=BRIGHTNESS, 01h=CONTRAST, 02h=COLOR, 03h=HUE, 04h=SHARPNESS, 05h=VOLUME, 96h=LAMP/LIGHT ADJUST"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: setting_request
  label: Setting Request
  kind: query
  command: "00h 85h 00h 00h 01h 00h 86h"
  params: []

- id: running_status_request
  label: Running Status Request
  kind: query
  command: "00h 85h 00h 00h 01h 01h 87h"
  params: []

- id: input_status_request
  label: Input Status Request
  kind: query
  command: "00h 85h 00h 00h 01h 02h 88h"
  params: []

- id: mute_status_request
  label: Mute Status Request
  kind: query
  command: "00h 85h 00h 00h 01h 03h 89h"
  params: []

- id: model_name_request
  label: Model Name Request
  kind: query
  command: "00h 85h 00h 00h 01h 04h 8Ah"
  params: []

- id: cover_status_request
  label: Cover Status Request
  kind: query
  command: "00h 85h 00h 00h 01h 05h 8Bh"
  params: []

- id: information_string_request
  label: Information String Request
  kind: query
  command: "00h D0h 00h 00h 03h 00h {data01} 01h {cks}"
  params:
    - name: data01
      type: string
      description: "Information type: 03h=Horizontal sync frequency, 04h=Vertical sync frequency"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: eco_mode_request
  label: Eco Mode Request
  kind: query
  command: "03h B0h 00h 00h 01h 07h BBh"
  params: []

- id: lan_projector_name_request
  label: LAN Projector Name Request
  kind: query
  command: "03h B0h 00h 00h 01h 2Ch E0h"
  params: []

- id: lan_mac_address_status_request2
  label: LAN MAC Address Status Request 2
  kind: query
  command: "03h B0h 00h 00h 02h 9Ah 00h 4Fh"
  params: []

- id: pip_picture_by_picture_request
  label: PIP/Picture by Picture Request
  kind: query
  command: "03h B0h 00h 00h 02h C5h {data01} {cks}"
  params:
    - name: data01
      type: string
      description: "Target: 00h=MODE, 01h=START POSITION, 02h=SUB INPUT/SUB INPUT 1, 09h=SUB INPUT 2, 0Ah=SUB INPUT 3"
    - name: cks
      type: string
      description: Checksum - low-order byte of sum of all preceding bytes

- id: edge_blending_mode_request
  label: Edge Blending Mode Request
  kind: query
  command: "03h B0h 00h 00h 02h DFh 00h 94h"
  params: []

- id: base_model_type_request
  label: Base Model Type Request
  kind: query
  command: "00h BFh 00h 00h 01h 00h C0h"
  params: []

- id: serial_number_request
  label: Serial Number Request
  kind: query
  command: "00h BFh 00h 00h 02h 01h 06h C8h"
  params: []

- id: basic_information_request
  label: Basic Information Request
  kind: query
  command: "00h BFh 00h 00h 01h 02h C2h"
  params: []

Feedbacks

- id: error_status
  type: bitmask
  description: 12-byte error status (DATA01-DATA12); bit=0 normal, bit=1 error. Covers cover, fan, temperature, power, lamp, mirror cover, interlock, and system errors.

- id: power_status
  type: enum
  values: [standby, power_on, standby_error, standby_power_saving, network_standby, cooling]
  description: From RUNNING STATUS REQUEST DATA03/06

- id: mute_status
  type: enum
  description: From MUTE STATUS REQUEST - picture mute, sound mute, onscreen mute, forced onscreen mute

- id: input_status
  type: string
  description: From INPUT STATUS REQUEST - signal type, list number, content displayed

- id: cover_status
  type: enum
  values: [normal_open, closed]

- id: lens_operation_status
  type: bitmask
  description: From LENS INFORMATION REQUEST DATA01 - lens memory, zoom, focus, lens shift H/V operation flags

- id: lamp_usage_time
  type: integer
  unit: seconds
  description: From LAMP INFORMATION REQUEST 3, updated at 1-minute intervals

- id: lamp_remaining_life
  type: integer
  unit: percent
  description: From LAMP INFORMATION REQUEST 3; negative if replacement deadline exceeded

- id: filter_usage_time
  type: integer
  unit: seconds
  description: From FILTER USAGE INFORMATION REQUEST

- id: gain_parameter
  type: object
  description: From GAIN PARAMETER REQUEST 3 - upper/lower limits, default, current, wide/narrow adjustment widths

Variables

- id: volume
  type: integer
  description: Sound volume; set via VOLUME ADJUST, read via GAIN PARAMETER REQUEST 3 (DATA01=05h)

- id: brightness
  type: integer
  description: Picture brightness; set via PICTURE ADJUST (DATA01=00h), read via GAIN PARAMETER REQUEST 3 (DATA01=00h)

- id: contrast
  type: integer
  description: Picture contrast; set via PICTURE ADJUST (DATA01=01h), read via GAIN PARAMETER REQUEST 3 (DATA01=01h)

- id: color
  type: integer
  description: Picture color; set via PICTURE ADJUST (DATA01=02h), read via GAIN PARAMETER REQUEST 3 (DATA01=02h)

- id: hue
  type: integer
  description: Picture hue; set via PICTURE ADJUST (DATA01=03h), read via GAIN PARAMETER REQUEST 3 (DATA01=03h)

- id: sharpness
  type: integer
  description: Picture sharpness; set via PICTURE ADJUST (DATA01=04h), read via GAIN PARAMETER REQUEST 3 (DATA01=04h)

- id: lamp_light_adjust
  type: integer
  description: Lamp/Light adjust; set via OTHER ADJUST (DATA01=96h), read via GAIN PARAMETER REQUEST 3 (DATA01=96h)

- id: projector_name
  type: string
  maxLength: 16
  description: LAN projector name; set via LAN PROJECTOR NAME SET, read via LAN PROJECTOR NAME REQUEST

- id: eco_mode
  type: string
  description: Eco/Light/Lamp mode; set via ECO MODE SET, read via ECO MODE REQUEST
  # UNRESOLVED: exact enum values not in source body - referenced to appendix "Supplementary Information by Command"

Events

# UNRESOLVED: no unsolicited notification events documented in source

Macros

# UNRESOLVED: no multi-step sequences documented in source

Safety

confirmation_required_for: []
interlocks:
  - description: "POWER ON: while turning on, no other command accepted"
  - description: "POWER OFF: while turning off (including cooling time), no other command accepted"
# UNRESOLVED: no explicit safety warnings or power-on sequencing procedures beyond command-acceptance notes

Notes

• Binary hex protocol. Every command/response is a framed byte sequence with a trailing checksum (CKS).
• Checksum = low-order byte (8 bits) of the sum of all preceding bytes.
• Command frame format: <LeadByte> <CommandByte> <ID1> <ID2> <LEN> <DATA...> <CKS>. Lead byte distinguishes direction/type (e.g. 02h/03h = command, 22h/23h/20h = success response, A2h/A3h/A0h = error response).
• ID1 = control ID set on projector; ID2 = model code (varies by model).
• Response errors use ERR1/ERR2 byte pair (see source section 2.4 for full error code table).
• Serial supports baud rates 115200/38400/19200/9600/4800, 8 data bits, no parity, 1 stop bit, full duplex.
• TCP port 7142 for LAN command send/receive.
• Lamp/filter usage time returned in seconds, updated at 1-minute intervals.
• Several commands reference an appendix ("Supplementary Information by Command") not included in the refined source for exact enum values (input terminal codes, aspect values, eco mode values, sub input values).

Provenance

source_domains:
  - sharpdisplays.eu
source_urls:
  - https://www.sharpdisplays.eu/p/download/cp/Products/Projectors/Shared/CommandLists/NEC-ExternalControlManual-english.pdf
retrieved_at: 2026-06-16T15:48:08.716Z
last_checked_at: 2026-06-17T19:43:26.001Z

Verification Summary

verdict: verified
checked_at: 2026-06-17T19:43:26.001Z
matched_actions: 53
action_count: 53
confidence: medium
summary: "All 53 spec actions map exactly to source protocol commands with correct opcodes; transport parameters (port, baud rates, frame format) all verified verbatim. (9 unresolved item(s) noted in Known Gaps.)"

Known Gaps

- "manual is generic \"Projector Control Command Reference Manual\" (BDT140013 Rev 7.1); E498 model identification supplied by operator, not stated verbatim in source text. Firmware version compatibility not stated."
- "flow control not stated in source (communication mode is \"Full duplex\")"
- "exact enum values not in source body - referenced to appendix \"Supplementary Information by Command\""
- "no unsolicited notification events documented in source"
- "no multi-step sequences documented in source"
- "no explicit safety warnings or power-on sequencing procedures beyond command-acceptance notes"
- "appendix \"Supplementary Information by Command\" not in source — input terminal, aspect, eco mode, and sub input enum values incomplete."
- "firmware version compatibility not stated."
- "flow_control not stated (full-duplex communication mode stated, but no RTS/CTS or XON/XOFF mention)."

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