Sharp/NEC NC2402ML RS-232 / IP control commands

Summary

Sharp/NEC NC2402ML projector control spec covering the binary protocol documented in the Projector Control Command Reference Manual (BDT140013 Rev 7.1). The device is controllable via an RS-232C serial port (PC CONTROL, D-SUB 9P) and over a wired/wireless LAN using TCP port 7142. Commands are framed hex bytes with a trailing additive checksum (low-order byte).

Transport

protocols:
  - serial
  - tcp
serial:
  baud_rate: [115200, 38400, 19200, 9600, 4800]  # source lists all as supported
  data_bits: 8
  parity: none
  stop_bits: 1
  flow_control: none  # source states Full duplex; RTS/CTS pins present on D-SUB 9P but no flow-control setting stated
addressing:
  port: 7142
auth:
  type: none  # inferred: no auth procedure in source

Traits

traits:
  - powerable      # inferred: POWER ON / POWER OFF commands present
  - queryable      # inferred: many *REQUEST commands return state
  - levelable      # inferred: PICTURE/VOLUME/LAMP adjust + gain parameter requests

Actions

# Frame legend (from source §2.1): each command is a hex byte stream with
# <ID1>=control ID, <ID2>=model code, <CKS>=additive checksum (low-order byte
# of the sum of all preceding bytes). Fixed command payloads reproduced verbatim.
# Parameterized commands show the variable DATA bytes as placeholders.

- id: error_status_request_009
  label: Error Status Request (009)
  kind: query
  command: "00h 88h 00h 00h 00h 88h"
  params: []

- id: power_on_015
  label: Power On (015)
  kind: action
  command: "02h 00h 00h 00h 00h 02h"
  params: []
  notes: While turning power on, no other command accepted.

- id: power_off_016
  label: Power Off (016)
  kind: action
  command: "02h 01h 00h 00h 00h 03h"
  params: []
  notes: While turning power off (incl. cooling time), no other command accepted.

- id: input_sw_change_018
  label: Input SW Change (018)
  kind: action
  command: "02h 03h 00h 00h 02h 01h <DATA01> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Input terminal value (e.g. 06h = video port). Full value list in appendix 'Supplementary Information by Command' - UNRESOLVED: appendix not in source excerpt."
  notes: "Example (video): 02h 03h 00h 00h 02h 01h 06h 0Eh"

- id: picture_mute_on_020
  label: Picture Mute On (020)
  kind: action
  command: "02h 10h 00h 00h 00h 12h"
  params: []

- id: picture_mute_off_021
  label: Picture Mute Off (021)
  kind: action
  command: "02h 11h 00h 00h 00h 13h"
  params: []

- id: sound_mute_on_022
  label: Sound Mute On (022)
  kind: action
  command: "02h 12h 00h 00h 00h 14h"
  params: []

- id: sound_mute_off_023
  label: Sound Mute Off (023)
  kind: action
  command: "02h 13h 00h 00h 00h 15h"
  params: []

- id: onscreen_mute_on_024
  label: Onscreen Mute On (024)
  kind: action
  command: "02h 14h 00h 00h 00h 16h"
  params: []

- id: onscreen_mute_off_025
  label: Onscreen Mute Off (025)
  kind: action
  command: "02h 15h 00h 00h 00h 17h"
  params: []

- id: picture_adjust_030_1
  label: Picture Adjust (030-1)
  kind: action
  command: "03h 10h 00h 00h 05h <DATA01> FFh <DATA02> - <DATA04> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Adjustment target (00h=Brightness, 01h=Contrast, 02h=Color, 03h=Hue, 04h=Sharpness)"
    - name: DATA02
      type: integer
      description: "Adjustment mode (00h=absolute, 01h=relative)"
    - name: DATA03
      type: integer
      description: Adjustment value (low-order 8 bits)
    - name: DATA04
      type: integer
      description: Adjustment value (high-order 8 bits)

- id: volume_adjust_030_2
  label: Volume Adjust (030-2)
  kind: action
  command: "03h 10h 00h 00h 05h 05h 00h <DATA01> - <DATA03> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Adjustment mode (00h=absolute, 01h=relative)"
    - name: DATA02
      type: integer
      description: Adjustment value (low-order 8 bits)
    - name: DATA03
      type: integer
      description: Adjustment value (high-order 8 bits)

- id: aspect_adjust_030_12
  label: Aspect Adjust (030-12)
  kind: action
  command: "03h 10h 00h 00h 05h 18h 00h 00h <DATA01> 00h <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Value set for the aspect - full list in appendix 'Supplementary Information by Command' (UNRESOLVED: appendix not in source excerpt)."

- id: other_adjust_030_15
  label: Other Adjust / Lamp-Light Adjust (030-15)
  kind: action
  command: "03h 10h 00h 00h 05h <DATA01> - <DATA05> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Target high byte - 96h when DATA02=FFh (LAMP ADJUST / LIGHT ADJUST)"
    - name: DATA02
      type: integer
      description: "Target low byte (FFh for LAMP/LIGHT ADJUST)"
    - name: DATA03
      type: integer
      description: "Adjustment mode (00h=absolute, 01h=relative)"
    - name: DATA04
      type: integer
      description: Adjustment value (low-order 8 bits)
    - name: DATA05
      type: integer
      description: Adjustment value (high-order 8 bits)

- id: information_request_037
  label: Information Request (037)
  kind: query
  command: "03h 8Ah 00h 00h 00h 8Dh"
  params: []
  notes: "Returns projector name (DATA01-49), lamp usage seconds (DATA83-86), filter usage seconds (DATA87-90). Updated at 1-minute intervals."

- id: filter_usage_information_request_037_3
  label: Filter Usage Information Request (037-3)
  kind: query
  command: "03h 95h 00h 00h 00h 98h"
  params: []
  notes: "Returns filter usage seconds (DATA01-04) and filter alarm start seconds (DATA05-08). '-1' if undefined."

- id: lamp_information_request_3_037_4
  label: Lamp Information Request 3 (037-4)
  kind: query
  command: "03h 96h 00h 00h 02h <DATA01> <DATA02> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Lamp selector (00h=Lamp 1, 01h=Lamp 2 - Lamp 2 only on two-lamp models)"
    - name: DATA02
      type: integer
      description: "Content (01h=usage seconds, 04h=remaining life %)"

- id: carbon_savings_information_request_037_6
  label: Carbon Savings Information Request (037-6)
  kind: query
  command: "03h 9Ah 00h 00h 01h <DATA01> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "00h=Total Carbon Savings, 01h=Carbon Savings during operation"

- id: remote_key_code_050
  label: Remote Key Code (050)
  kind: action
  command: "02h 0Fh 00h 00h 02h <DATA01> <DATA02> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Key code low byte (see key code list in Notes)"
    - name: DATA02
      type: integer
      description: "Key code high byte (00h for all listed keys)"

- id: shutter_close_051
  label: Shutter Close (051)
  kind: action
  command: "02h 16h 00h 00h 00h 18h"
  params: []

- id: shutter_open_052
  label: Shutter Open (052)
  kind: action
  command: "02h 17h 00h 00h 00h 19h"
  params: []

- id: lens_control_053
  label: Lens Control (053)
  kind: action
  command: "02h 18h 00h 00h 02h <DATA01> <DATA02> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Lens target (06h=Periphery Focus)"
    - name: DATA02
      type: integer
      description: "Drive content (00h=Stop, 01h=+1s, 02h=+0.5s, 03h=+0.25s, 7Fh=plus, 81h=minus, FDh=-0.25s, FEh=-0.5s, FFh=-1s)"
  notes: After 7Fh/81h, send 00h to stop.

- id: lens_control_request_053_1
  label: Lens Control Request (053-1)
  kind: query
  command: "02h 1Ch 00h 00h 02h <DATA01> 00h <CKS>"
  params:
    - name: DATA01
      type: integer
      description: Lens target (same set as 053 LENS CONTROL)

- id: lens_control_2_053_2
  label: Lens Control 2 (053-2)
  kind: action
  command: "02h 1Dh 00h 00h 04h <DATA01> - <DATA04> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Lens target (FFh=Stop - when Stop, mode/value ignored)"
    - name: DATA02
      type: integer
      description: "Adjustment mode (00h=absolute, 02h=relative)"
    - name: DATA03
      type: integer
      description: Adjustment value (low-order 8 bits)
    - name: DATA04
      type: integer
      description: Adjustment value (high-order 8 bits)

- id: lens_memory_control_053_3
  label: Lens Memory Control (053-3)
  kind: action
  command: "02h 1Eh 00h 00h 01h <DATA01> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Operation (00h=MOVE, 01h=STORE, 02h=RESET)"

- id: reference_lens_memory_control_053_4
  label: Reference Lens Memory Control (053-4)
  kind: action
  command: "02h 1Fh 00h 00h 01h <DATA01> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Operation (00h=MOVE, 01h=STORE, 02h=RESET)"
  notes: Operates on the profile selected via 053-10 LENS PROFILE SET.

- id: lens_memory_option_request_053_5
  label: Lens Memory Option Request (053-5)
  kind: query
  command: "02h 20h 00h 00h 01h <DATA01> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Option (00h=LOAD BY SIGNAL, 01h=FORCED MUTE)"

- id: lens_memory_option_set_053_6
  label: Lens Memory Option Set (053-6)
  kind: action
  command: "02h 21h 00h 00h 02h <DATA01> <DATA02> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Option (00h=LOAD BY SIGNAL, 01h=FORCED MUTE)"
    - name: DATA02
      type: integer
      description: "Setting value (00h=OFF, 01h=ON)"

- id: lens_information_request_053_7
  label: Lens Information Request (053-7)
  kind: query
  command: "02h 22h 00h 00h 01h 00h 25h"
  params: []

- id: lens_profile_set_053_10
  label: Lens Profile Set (053-10)
  kind: action
  command: "02h 27h 00h 00h 01h <DATA01> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Profile number (00h=Profile 1, 01h=Profile 2)"

- id: lens_profile_request_053_11
  label: Lens Profile Request (053-11)
  kind: query
  command: "02h 28h 00h 00h 00h 2Ah"
  params: []

- id: gain_parameter_request_3_060_1
  label: Gain Parameter Request 3 (060-1)
  kind: query
  command: "03h 05h 00h 00h 03h <DATA01> 00h 00h <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Adjusted value name (00h=Brightness, 01h=Contrast, 02h=Color, 03h=Hue, 04h=Sharpness, 05h=Volume, 96h=Lamp/Light Adjust)"

- id: setting_request_078_1
  label: Setting Request (078-1)
  kind: query
  command: "00h 85h 00h 00h 01h 00h 86h"
  params: []

- id: running_status_request_078_2
  label: Running Status Request (078-2)
  kind: query
  command: "00h 85h 00h 00h 01h 01h 87h"
  params: []

- id: input_status_request_078_3
  label: Input Status Request (078-3)
  kind: query
  command: "00h 85h 00h 00h 01h 02h 88h"
  params: []

- id: mute_status_request_078_4
  label: Mute Status Request (078-4)
  kind: query
  command: "00h 85h 00h 00h 01h 03h 89h"
  params: []

- id: model_name_request_078_5
  label: Model Name Request (078-5)
  kind: query
  command: "00h 85h 00h 00h 01h 04h 8Ah"
  params: []

- id: cover_status_request_078_6
  label: Cover Status Request (078-6)
  kind: query
  command: "00h 85h 00h 00h 01h 05h 8Bh"
  params: []

- id: freeze_control_079
  label: Freeze Control (079)
  kind: action
  command: "01h 98h 00h 00h 01h <DATA01> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "01h=Freeze on, 02h=Freeze off"

- id: information_string_request_084
  label: Information String Request (084)
  kind: query
  command: "00h D0h 00h 00h 03h 00h <DATA01> 01h <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Information type (03h=Horizontal sync frequency, 04h=Vertical sync frequency)"

- id: eco_mode_request_097_8
  label: Eco Mode Request (097-8)
  kind: query
  command: "03h B0h 00h 00h 01h 07h BBh"
  params: []

- id: lan_projector_name_request_097_45
  label: LAN Projector Name Request (097-45)
  kind: query
  command: "03h B0h 00h 00h 01h 2Ch E0h"
  params: []

- id: lan_mac_address_status_request_2_097_155
  label: LAN MAC Address Status Request 2 (097-155)
  kind: query
  command: "03h B0h 00h 00h 02h 9Ah 00h 4Fh"
  params: []

- id: pip_picture_by_picture_request_097_198
  label: PIP/Picture-by-Picture Request (097-198)
  kind: query
  command: "03h B0h 00h 00h 02h C5h <DATA01> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "00h=MODE, 01h=START POSITION, 02h=SUB INPUT/SUB INPUT 1, 09h=SUB INPUT 2, 0Ah=SUB INPUT 3"

- id: edge_blending_mode_request_097_243_1
  label: Edge Blending Mode Request (097-243-1)
  kind: query
  command: "03h B0h 00h 00h 02h DFh 00h 94h"
  params: []

- id: eco_mode_set_098_8
  label: Eco Mode Set (098-8)
  kind: action
  command: "03h B1h 00h 00h 02h 07h <DATA01> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Eco mode value - full enum in appendix 'Supplementary Information by Command' (UNRESOLVED: appendix not in source excerpt)."

- id: lan_projector_name_set_098_45
  label: LAN Projector Name Set (098-45)
  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)

- id: pip_picture_by_picture_set_098_198
  label: PIP/Picture-by-Picture Set (098-198)
  kind: action
  command: "03h B1h 00h 00h 03h C5h <DATA01> <DATA02> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "00h=MODE, 01h=START POSITION, 02h=SUB INPUT/SUB INPUT 1, 09h=SUB INPUT 2, 0Ah=SUB INPUT 3"
    - name: DATA02
      type: integer
      description: "Setting value (MODE: 00h=PIP,01h=PbP; START POSITION: 00h=TL,01h=TR,02h=BL,03h=BR; sub-input values in appendix - UNRESOLVED)."

- id: edge_blending_mode_set_098_243_1
  label: Edge Blending Mode Set (098-243-1)
  kind: action
  command: "03h B1h 00h 00h 03h DFh 00h <DATA01> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Setting value (00h=OFF, 01h=ON)"

- id: base_model_type_request_305_1
  label: Base Model Type Request (305-1)
  kind: query
  command: "00h BFh 00h 00h 01h 00h C0h"
  params: []

- id: serial_number_request_305_2
  label: Serial Number Request (305-2)
  kind: query
  command: "00h BFh 00h 00h 02h 01h 06h C8h"
  params: []

- id: basic_information_request_305_3
  label: Basic Information Request (305-3)
  kind: query
  command: "00h BFh 00h 00h 01h 02h C2h"
  params: []

- id: audio_select_set_319_10
  label: Audio Select Set (319-10)
  kind: action
  command: "03h C9h 00h 00h 03h 09h <DATA01> <DATA02> <CKS>"
  params:
    - name: DATA01
      type: integer
      description: "Input terminal - values in appendix 'Supplementary Information by Command' (UNRESOLVED: appendix not in source excerpt)."
    - name: DATA02
      type: integer
      description: "Setting value (00h=terminal in DATA01, 01h=BNC, 02h=COMPUTER)"

Feedbacks

# Query responses - observable state returned by the device.
- id: power_state
  type: enum
  values: [standby, power_on]
  source: 078-2 DATA03 (00h=Standby, 01h=Power on)

- id: cooling_status
  type: enum
  values: [not_executed, during_execution]
  source: 078-2 DATA04

- id: operation_status
  type: enum
  values: [standby_sleep, power_on, cooling, standby_error, standby_power_saving, network_standby]
  source: 078-2 DATA06 / 305-3 DATA01

- id: picture_mute_state
  type: enum
  values: [off, on]
  source: 078-4 DATA01

- id: sound_mute_state
  type: enum
  values: [off, on]
  source: 078-4 DATA02

- id: onscreen_mute_state
  type: enum
  values: [off, on]
  source: 078-4 DATA03

- id: cover_state
  type: enum
  values: [normal_opened, closed]
  source: 078-6 DATA01

- id: error_status
  type: bitmask
  source: 009 DATA01-12 (per-bit error flags; see Notes)

- id: lamp_usage_seconds
  type: integer
  source: 037 DATA83-86 / 037-4

- id: lamp_remaining_life_percent
  type: integer
  source: 037-4 (DATA02=04h); negative if past replacement deadline

- id: filter_usage_seconds
  type: integer
  source: 037-3 DATA01-04

- id: eco_mode_value
  type: raw
  source: 097-8 DATA01

- id: model_name
  type: string
  source: 078-5

- id: serial_number
  type: string
  source: 305-2

- id: mac_address
  type: string
  source: 097-155

- id: lens_profile_selected
  type: enum
  values: [profile_1, profile_2]
  source: 053-11

- id: edge_blending_mode
  type: enum
  values: [off, on]
  source: 097-243-1

Variables

# Settable parameters exposed via dedicated gain-parameter request (060-1)
# with upper/lower/default/current bounds returned by the device.
- id: brightness
  type: integer
  source: 060-1 DATA01=00h / 030-1 DATA01=00h
- id: contrast
  type: integer
  source: 060-1 DATA01=01h / 030-1 DATA01=01h
- id: color
  type: integer
  source: 060-1 DATA01=02h / 030-1 DATA01=02h
- id: hue
  type: integer
  source: 060-1 DATA01=03h / 030-1 DATA01=03h
- id: sharpness
  type: integer
  source: 060-1 DATA01=04h / 030-1 DATA01=04h
- id: volume
  type: integer
  source: 060-1 DATA01=05h / 030-2
- id: lamp_light_adjust
  type: integer
  source: 060-1 DATA01=96h / 030-15
- id: aspect
  type: enum
  source: 030-12 (enum values UNRESOLVED - in appendix)
- id: eco_mode
  type: enum
  source: 098-8 (enum values UNRESOLVED - in appendix)
- id: lan_projector_name
  type: string
  max_length: 16
  source: 098-45

Events

# Source documents no unsolicited notifications - device only replies to commands.
# UNRESOLVED: no event/notification mechanism documented.

Macros

# Source documents no multi-step command sequences.
# UNRESOLVED: no macros documented in source.

Safety

confirmation_required_for: []
interlocks: []
# UNRESOLVED: source contains no explicit safety warnings, interlock procedures,
# or power-on sequencing requirements beyond the note that POWER ON / POWER OFF
# block other commands during execution. Error-status bit 03 (interlock switch
# open) and cover-status (078-6) are reported but no interlock sequence is
# prescribed in the source excerpt.

Notes

Checksum (CKS): additive — sum all preceding bytes, take low-order 8 bits. Example from source: 20h+81h+01h+60h+01h+00h = 103h → CKS=03h.
Power-on/off blocking: while POWER ON is executing, or POWER OFF is executing (incl. cooling), no other command is accepted.
Picture/Sound/Onscreen mute auto-reset: input-terminal switch, video-signal switch (and volume adjust for sound mute) cancel the respective mute.
Lens drive: after sending continuous-drive bytes (7Fh plus / 81h minus), a 00h (Stop) must be sent to halt. While the lens is driven, re-issuing the same command continues motion without stopping.
Lamp/usage-time granularity: usage seconds are stored in 1-second units but refreshed at 1-minute intervals.
Two-lamp models: DATA01=01h (Lamp 2) is only valid on two-lamp projectors.

Key code list (050 REMOTE KEY CODE):

Key	DATA01 DATA02	Name
2	02h 00h	POWER ON
3	03h 00h	POWER OFF
5	05h 00h	AUTO
6	06h 00h	MENU
7	07h 00h	UP
8	08h 00h	DOWN
9	09h 00h	RIGHT
10	0Ah 00h	LEFT
11	0Bh 00h	ENTER
12	0Ch 00h	EXIT
13	0Dh 00h	HELP
15	0Fh 00h	MAGNIFY UP
16	10h 00h	MAGNIFY DOWN
19	13h 00h	MUTE
41	29h 00h	PICTURE
75	4Bh 00h	COMPUTER1
76	4Ch 00h	COMPUTER2
79	4Fh 00h	VIDEO1
81	51h 00h	S-VIDEO1
132	84h 00h	VOLUME UP
133	85h 00h	VOLUME DOWN
138	8Ah 00h	FREEZE
163	A3h 00h	ASPECT
215	D7h 00h	SOURCE
238	EEh 00h	LAMP MODE/ECO

Error code list (ERR1/ERR2): see source §2.4; combinations span unrecognized command (00h/00h), unsupported (00h/01h), invalid value (01h/00h), invalid input terminal (01h/01h), power-off rejection (02h/0Dh), no authority (02h/0Fh), etc.
Source manual revision: BDT140013 Rev 7.1.


Spec above. Caveman: 52 commands done, hex verbatim, checksum kept. Both transports in (serial + TCP 7142). Appendix enums marked UNRESOLVED — not in refined excerpt.

## 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: 2026-06-16T11:53:56.082Z
last_checked_at: 2026-06-18T08:33:27.178Z
```

## Verification Summary

```yaml
verdict: verified
checked_at: 2026-06-18T08:33:27.178Z
matched_actions: 53
action_count: 53
confidence: medium
summary: "All 53 spec actions matched verbatim against source command reference; transport parameters verified; complete bidirectional coverage. (14 unresolved item(s) noted in Known Gaps.)"
```

## Known Gaps

```yaml
- "manufacturer entity/bootstrap token not verified against Convex"
- "appendix \"Supplementary Information by Command\" (input terminal values, aspect values, eco-mode values, base-model-type values, sub-input values) was not included in the refined source excerpt — several DATA value enumerations referenced but not listed inline"
- "appendix not in source excerpt.\""
- "appendix not in source excerpt).\""
- "no event/notification mechanism documented."
- "no macros documented in source."
- "source contains no explicit safety warnings, interlock procedures,"
- "input terminal value list (used by 018, 319-10) lives in appendix \"Supplementary Information by Command\" not present in the refined excerpt"
- "aspect value list (030-12) lives in the same appendix"
- "eco-mode value list (097-8 / 098-8) lives in the same appendix"
- "base-model-type values (078-1 / 305-1) and sub-input setting values (097-198 / 098-198) live in the same appendix"
- "firmware version compatibility not stated in source"
- "flow_control not explicitly named (Full-duplex stated; RTS/CTS pins wired on D-SUB 9P)"
- "default baud rate not stated — source lists five supported rates without indicating the default"
```

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

Summary

Transport

protocols: - serial - tcp serial: baud_rate: [115200, 38400, 19200, 9600, 4800] # source lists all as supported data_bits: 8 parity: none stop_bits: 1 flow_control: none # source states Full duplex; RTS/CTS pins present on D-SUB 9P but no flow-control setting stated addressing: port: 7142 auth: type: none # inferred: no auth procedure in source

traits: - powerable # inferred: POWER ON / POWER OFF commands present - queryable # inferred: many *REQUEST commands return state - levelable # inferred: PICTURE/VOLUME/LAMP adjust + gain parameter requests

Actions

# Frame legend (from source §2.1): each command is a hex byte stream with # <ID1>=control ID, <ID2>=model code, <CKS>=additive checksum (low-order byte # of the sum of all preceding bytes). Fixed command payloads reproduced verbatim. # Parameterized commands show the variable DATA bytes as placeholders. - id: error_status_request_009 label: Error Status Request (009) kind: query command: "00h 88h 00h 00h 00h 88h" params: [] - id: power_on_015 label: Power On (015) kind: action command: "02h 00h 00h 00h 00h 02h" params: [] notes: While turning power on, no other command accepted. - id: power_off_016 label: Power Off (016) kind: action command: "02h 01h 00h 00h 00h 03h" params: [] notes: While turning power off (incl. cooling time), no other command accepted. - id: input_sw_change_018 label: Input SW Change (018) kind: action command: "02h 03h 00h 00h 02h 01h <DATA01> <CKS>" params: - name: DATA01 type: integer description: "Input terminal value (e.g. 06h = video port). Full value list in appendix 'Supplementary Information by Command' - UNRESOLVED: appendix not in source excerpt." notes: "Example (video): 02h 03h 00h 00h 02h 01h 06h 0Eh" - id: picture_mute_on_020 label: Picture Mute On (020) kind: action command: "02h 10h 00h 00h 00h 12h" params: [] - id: picture_mute_off_021 label: Picture Mute Off (021) kind: action command: "02h 11h 00h 00h 00h 13h" params: [] - id: sound_mute_on_022 label: Sound Mute On (022) kind: action command: "02h 12h 00h 00h 00h 14h" params: [] - id: sound_mute_off_023 label: Sound Mute Off (023) kind: action command: "02h 13h 00h 00h 00h 15h" params: [] - id: onscreen_mute_on_024 label: Onscreen Mute On (024) kind: action command: "02h 14h 00h 00h 00h 16h" params: [] - id: onscreen_mute_off_025 label: Onscreen Mute Off (025) kind: action command: "02h 15h 00h 00h 00h 17h" params: [] - id: picture_adjust_030_1 label: Picture Adjust (030-1) kind: action command: "03h 10h 00h 00h 05h <DATA01> FFh <DATA02> - <DATA04> <CKS>" params: - name: DATA01 type: integer description: "Adjustment target (00h=Brightness, 01h=Contrast, 02h=Color, 03h=Hue, 04h=Sharpness)" - name: DATA02 type: integer description: "Adjustment mode (00h=absolute, 01h=relative)" - name: DATA03 type: integer description: Adjustment value (low-order 8 bits) - name: DATA04 type: integer description: Adjustment value (high-order 8 bits) - id: volume_adjust_030_2 label: Volume Adjust (030-2) kind: action command: "03h 10h 00h 00h 05h 05h 00h <DATA01> - <DATA03> <CKS>" params: - name: DATA01 type: integer description: "Adjustment mode (00h=absolute, 01h=relative)" - name: DATA02 type: integer description: Adjustment value (low-order 8 bits) - name: DATA03 type: integer description: Adjustment value (high-order 8 bits) - id: aspect_adjust_030_12 label: Aspect Adjust (030-12) kind: action command: "03h 10h 00h 00h 05h 18h 00h 00h <DATA01> 00h <CKS>" params: - name: DATA01 type: integer description: "Value set for the aspect - full list in appendix 'Supplementary Information by Command' (UNRESOLVED: appendix not in source excerpt)." - id: other_adjust_030_15 label: Other Adjust / Lamp-Light Adjust (030-15) kind: action command: "03h 10h 00h 00h 05h <DATA01> - <DATA05> <CKS>" params: - name: DATA01 type: integer description: "Target high byte - 96h when DATA02=FFh (LAMP ADJUST / LIGHT ADJUST)" - name: DATA02 type: integer description: "Target low byte (FFh for LAMP/LIGHT ADJUST)" - name: DATA03 type: integer description: "Adjustment mode (00h=absolute, 01h=relative)" - name: DATA04 type: integer description: Adjustment value (low-order 8 bits) - name: DATA05 type: integer description: Adjustment value (high-order 8 bits) - id: information_request_037 label: Information Request (037) kind: query command: "03h 8Ah 00h 00h 00h 8Dh" params: [] notes: "Returns projector name (DATA01-49), lamp usage seconds (DATA83-86), filter usage seconds (DATA87-90). Updated at 1-minute intervals." - id: filter_usage_information_request_037_3 label: Filter Usage Information Request (037-3) kind: query command: "03h 95h 00h 00h 00h 98h" params: [] notes: "Returns filter usage seconds (DATA01-04) and filter alarm start seconds (DATA05-08). '-1' if undefined." - id: lamp_information_request_3_037_4 label: Lamp Information Request 3 (037-4) kind: query command: "03h 96h 00h 00h 02h <DATA01> <DATA02> <CKS>" params: - name: DATA01 type: integer description: "Lamp selector (00h=Lamp 1, 01h=Lamp 2 - Lamp 2 only on two-lamp models)" - name: DATA02 type: integer description: "Content (01h=usage seconds, 04h=remaining life %)" - id: carbon_savings_information_request_037_6 label: Carbon Savings Information Request (037-6) kind: query command: "03h 9Ah 00h 00h 01h <DATA01> <CKS>" params: - name: DATA01 type: integer description: "00h=Total Carbon Savings, 01h=Carbon Savings during operation" - id: remote_key_code_050 label: Remote Key Code (050) kind: action command: "02h 0Fh 00h 00h 02h <DATA01> <DATA02> <CKS>" params: - name: DATA01 type: integer description: "Key code low byte (see key code list in Notes)" - name: DATA02 type: integer description: "Key code high byte (00h for all listed keys)" - id: shutter_close_051 label: Shutter Close (051) kind: action command: "02h 16h 00h 00h 00h 18h" params: [] - id: shutter_open_052 label: Shutter Open (052) kind: action command: "02h 17h 00h 00h 00h 19h" params: [] - id: lens_control_053 label: Lens Control (053) kind: action command: "02h 18h 00h 00h 02h <DATA01> <DATA02> <CKS>" params: - name: DATA01 type: integer description: "Lens target (06h=Periphery Focus)" - name: DATA02 type: integer description: "Drive content (00h=Stop, 01h=+1s, 02h=+0.5s, 03h=+0.25s, 7Fh=plus, 81h=minus, FDh=-0.25s, FEh=-0.5s, FFh=-1s)" notes: After 7Fh/81h, send 00h to stop. - id: lens_control_request_053_1 label: Lens Control Request (053-1) kind: query command: "02h 1Ch 00h 00h 02h <DATA01> 00h <CKS>" params: - name: DATA01 type: integer description: Lens target (same set as 053 LENS CONTROL) - id: lens_control_2_053_2 label: Lens Control 2 (053-2) kind: action command: "02h 1Dh 00h 00h 04h <DATA01> - <DATA04> <CKS>" params: - name: DATA01 type: integer description: "Lens target (FFh=Stop - when Stop, mode/value ignored)" - name: DATA02 type: integer description: "Adjustment mode (00h=absolute, 02h=relative)" - name: DATA03 type: integer description: Adjustment value (low-order 8 bits) - name: DATA04 type: integer description: Adjustment value (high-order 8 bits) - id: lens_memory_control_053_3 label: Lens Memory Control (053-3) kind: action command: "02h 1Eh 00h 00h 01h <DATA01> <CKS>" params: - name: DATA01 type: integer description: "Operation (00h=MOVE, 01h=STORE, 02h=RESET)" - id: reference_lens_memory_control_053_4 label: Reference Lens Memory Control (053-4) kind: action command: "02h 1Fh 00h 00h 01h <DATA01> <CKS>" params: - name: DATA01 type: integer description: "Operation (00h=MOVE, 01h=STORE, 02h=RESET)" notes: Operates on the profile selected via 053-10 LENS PROFILE SET. - id: lens_memory_option_request_053_5 label: Lens Memory Option Request (053-5) kind: query command: "02h 20h 00h 00h 01h <DATA01> <CKS>" params: - name: DATA01 type: integer description: "Option (00h=LOAD BY SIGNAL, 01h=FORCED MUTE)" - id: lens_memory_option_set_053_6 label: Lens Memory Option Set (053-6) kind: action command: "02h 21h 00h 00h 02h <DATA01> <DATA02> <CKS>" params: - name: DATA01 type: integer description: "Option (00h=LOAD BY SIGNAL, 01h=FORCED MUTE)" - name: DATA02 type: integer description: "Setting value (00h=OFF, 01h=ON)" - id: lens_information_request_053_7 label: Lens Information Request (053-7) kind: query command: "02h 22h 00h 00h 01h 00h 25h" params: [] - id: lens_profile_set_053_10 label: Lens Profile Set (053-10) kind: action command: "02h 27h 00h 00h 01h <DATA01> <CKS>" params: - name: DATA01 type: integer description: "Profile number (00h=Profile 1, 01h=Profile 2)" - id: lens_profile_request_053_11 label: Lens Profile Request (053-11) kind: query command: "02h 28h 00h 00h 00h 2Ah" params: [] - id: gain_parameter_request_3_060_1 label: Gain Parameter Request 3 (060-1) kind: query command: "03h 05h 00h 00h 03h <DATA01> 00h 00h <CKS>" params: - name: DATA01 type: integer description: "Adjusted value name (00h=Brightness, 01h=Contrast, 02h=Color, 03h=Hue, 04h=Sharpness, 05h=Volume, 96h=Lamp/Light Adjust)" - id: setting_request_078_1 label: Setting Request (078-1) kind: query command: "00h 85h 00h 00h 01h 00h 86h" params: [] - id: running_status_request_078_2 label: Running Status Request (078-2) kind: query command: "00h 85h 00h 00h 01h 01h 87h" params: [] - id: input_status_request_078_3 label: Input Status Request (078-3) kind: query command: "00h 85h 00h 00h 01h 02h 88h" params: [] - id: mute_status_request_078_4 label: Mute Status Request (078-4) kind: query command: "00h 85h 00h 00h 01h 03h 89h" params: [] - id: model_name_request_078_5 label: Model Name Request (078-5) kind: query command: "00h 85h 00h 00h 01h 04h 8Ah" params: [] - id: cover_status_request_078_6 label: Cover Status Request (078-6) kind: query command: "00h 85h 00h 00h 01h 05h 8Bh" params: [] - id: freeze_control_079 label: Freeze Control (079) kind: action command: "01h 98h 00h 00h 01h <DATA01> <CKS>" params: - name: DATA01 type: integer description: "01h=Freeze on, 02h=Freeze off" - id: information_string_request_084 label: Information String Request (084) kind: query command: "00h D0h 00h 00h 03h 00h <DATA01> 01h <CKS>" params: - name: DATA01 type: integer description: "Information type (03h=Horizontal sync frequency, 04h=Vertical sync frequency)" - id: eco_mode_request_097_8 label: Eco Mode Request (097-8) kind: query command: "03h B0h 00h 00h 01h 07h BBh" params: [] - id: lan_projector_name_request_097_45 label: LAN Projector Name Request (097-45) kind: query command: "03h B0h 00h 00h 01h 2Ch E0h" params: [] - id: lan_mac_address_status_request_2_097_155 label: LAN MAC Address Status Request 2 (097-155) kind: query command: "03h B0h 00h 00h 02h 9Ah 00h 4Fh" params: [] - id: pip_picture_by_picture_request_097_198 label: PIP/Picture-by-Picture Request (097-198) kind: query command: "03h B0h 00h 00h 02h C5h <DATA01> <CKS>" params: - name: DATA01 type: integer description: "00h=MODE, 01h=START POSITION, 02h=SUB INPUT/SUB INPUT 1, 09h=SUB INPUT 2, 0Ah=SUB INPUT 3" - id: edge_blending_mode_request_097_243_1 label: Edge Blending Mode Request (097-243-1) kind: query command: "03h B0h 00h 00h 02h DFh 00h 94h" params: [] - id: eco_mode_set_098_8 label: Eco Mode Set (098-8) kind: action command: "03h B1h 00h 00h 02h 07h <DATA01> <CKS>" params: - name: DATA01 type: integer description: "Eco mode value - full enum in appendix 'Supplementary Information by Command' (UNRESOLVED: appendix not in source excerpt)." - id: lan_projector_name_set_098_45 label: LAN Projector Name Set (098-45) 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) - id: pip_picture_by_picture_set_098_198 label: PIP/Picture-by-Picture Set (098-198) kind: action command: "03h B1h 00h 00h 03h C5h <DATA01> <DATA02> <CKS>" params: - name: DATA01 type: integer description: "00h=MODE, 01h=START POSITION, 02h=SUB INPUT/SUB INPUT 1, 09h=SUB INPUT 2, 0Ah=SUB INPUT 3" - name: DATA02 type: integer description: "Setting value (MODE: 00h=PIP,01h=PbP; START POSITION: 00h=TL,01h=TR,02h=BL,03h=BR; sub-input values in appendix - UNRESOLVED)." - id: edge_blending_mode_set_098_243_1 label: Edge Blending Mode Set (098-243-1) kind: action command: "03h B1h 00h 00h 03h DFh 00h <DATA01> <CKS>" params: - name: DATA01 type: integer description: "Setting value (00h=OFF, 01h=ON)" - id: base_model_type_request_305_1 label: Base Model Type Request (305-1) kind: query command: "00h BFh 00h 00h 01h 00h C0h" params: [] - id: serial_number_request_305_2 label: Serial Number Request (305-2) kind: query command: "00h BFh 00h 00h 02h 01h 06h C8h" params: [] - id: basic_information_request_305_3 label: Basic Information Request (305-3) kind: query command: "00h BFh 00h 00h 01h 02h C2h" params: [] - id: audio_select_set_319_10 label: Audio Select Set (319-10) kind: action command: "03h C9h 00h 00h 03h 09h <DATA01> <DATA02> <CKS>" params: - name: DATA01 type: integer description: "Input terminal - values in appendix 'Supplementary Information by Command' (UNRESOLVED: appendix not in source excerpt)." - name: DATA02 type: integer description: "Setting value (00h=terminal in DATA01, 01h=BNC, 02h=COMPUTER)"

Feedbacks

# Query responses - observable state returned by the device. - id: power_state type: enum values: [standby, power_on] source: 078-2 DATA03 (00h=Standby, 01h=Power on) - id: cooling_status type: enum values: [not_executed, during_execution] source: 078-2 DATA04 - id: operation_status type: enum values: [standby_sleep, power_on, cooling, standby_error, standby_power_saving, network_standby] source: 078-2 DATA06 / 305-3 DATA01 - id: picture_mute_state type: enum values: [off, on] source: 078-4 DATA01 - id: sound_mute_state type: enum values: [off, on] source: 078-4 DATA02 - id: onscreen_mute_state type: enum values: [off, on] source: 078-4 DATA03 - id: cover_state type: enum values: [normal_opened, closed] source: 078-6 DATA01 - id: error_status type: bitmask source: 009 DATA01-12 (per-bit error flags; see Notes) - id: lamp_usage_seconds type: integer source: 037 DATA83-86 / 037-4 - id: lamp_remaining_life_percent type: integer source: 037-4 (DATA02=04h); negative if past replacement deadline - id: filter_usage_seconds type: integer source: 037-3 DATA01-04 - id: eco_mode_value type: raw source: 097-8 DATA01 - id: model_name type: string source: 078-5 - id: serial_number type: string source: 305-2 - id: mac_address type: string source: 097-155 - id: lens_profile_selected type: enum values: [profile_1, profile_2] source: 053-11 - id: edge_blending_mode type: enum values: [off, on] source: 097-243-1

Variables

# Settable parameters exposed via dedicated gain-parameter request (060-1) # with upper/lower/default/current bounds returned by the device. - id: brightness type: integer source: 060-1 DATA01=00h / 030-1 DATA01=00h - id: contrast type: integer source: 060-1 DATA01=01h / 030-1 DATA01=01h - id: color type: integer source: 060-1 DATA01=02h / 030-1 DATA01=02h - id: hue type: integer source: 060-1 DATA01=03h / 030-1 DATA01=03h - id: sharpness type: integer source: 060-1 DATA01=04h / 030-1 DATA01=04h - id: volume type: integer source: 060-1 DATA01=05h / 030-2 - id: lamp_light_adjust type: integer source: 060-1 DATA01=96h / 030-15 - id: aspect type: enum source: 030-12 (enum values UNRESOLVED - in appendix) - id: eco_mode type: enum source: 098-8 (enum values UNRESOLVED - in appendix) - id: lan_projector_name type: string max_length: 16 source: 098-45

Safety

confirmation_required_for: [] interlocks: [] # UNRESOLVED: source contains no explicit safety warnings, interlock procedures, # or power-on sequencing requirements beyond the note that POWER ON / POWER OFF # block other commands during execution. Error-status bit 03 (interlock switch # open) and cover-status (078-6) are reported but no interlock sequence is # prescribed in the source excerpt.

Notes

Checksum (CKS): additive — sum all preceding bytes, take low-order 8 bits. Example from source: 20h+81h+01h+60h+01h+00h = 103h → CKS=03h.

Power-on/off blocking: while POWER ON is executing, or POWER OFF is executing (incl. cooling), no other command is accepted.

Picture/Sound/Onscreen mute auto-reset: input-terminal switch, video-signal switch (and volume adjust for sound mute) cancel the respective mute.

Lens drive: after sending continuous-drive bytes (7Fh plus / 81h minus), a 00h (Stop) must be sent to halt. While the lens is driven, re-issuing the same command continues motion without stopping.

Lamp/usage-time granularity: usage seconds are stored in 1-second units but refreshed at 1-minute intervals.

Two-lamp models: DATA01=01h (Lamp 2) is only valid on two-lamp projectors.

Key code list (050 REMOTE KEY CODE):

Key	DATA01 DATA02	Name
2	02h 00h	POWER ON
3	03h 00h	POWER OFF
5	05h 00h	AUTO
6	06h 00h	MENU
7	07h 00h	UP
8	08h 00h	DOWN
9	09h 00h	RIGHT
10	0Ah 00h	LEFT
11	0Bh 00h	ENTER
12	0Ch 00h	EXIT
13	0Dh 00h	HELP
15	0Fh 00h	MAGNIFY UP
16	10h 00h	MAGNIFY DOWN
19	13h 00h	MUTE
41	29h 00h	PICTURE
75	4Bh 00h	COMPUTER1
76	4Ch 00h	COMPUTER2
79	4Fh 00h	VIDEO1
81	51h 00h	S-VIDEO1
132	84h 00h	VOLUME UP
133	85h 00h	VOLUME DOWN
138	8Ah 00h	FREEZE
163	A3h 00h	ASPECT
215	D7h 00h	SOURCE
238	EEh 00h	LAMP MODE/ECO

Error code list (ERR1/ERR2): see source §2.4; combinations span unrecognized command (00h/00h), unsupported (00h/01h), invalid value (01h/00h), invalid input terminal (01h/01h), power-off rejection (02h/0Dh), no authority (02h/0Fh), etc.

Source manual revision: BDT140013 Rev 7.1.

Spec above. Caveman: 52 commands done, hex verbatim, checksum kept. Both transports in (serial + TCP 7142). Appendix enums marked UNRESOLVED — not in refined excerpt. ## 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: 2026-06-16T11:53:56.082Z last_checked_at: 2026-06-18T08:33:27.178Z ``` ## Verification Summary ```yaml verdict: verified checked_at: 2026-06-18T08:33:27.178Z matched_actions: 53 action_count: 53 confidence: medium summary: "All 53 spec actions matched verbatim against source command reference; transport parameters verified; complete bidirectional coverage. (14 unresolved item(s) noted in Known Gaps.)" ``` ## Known Gaps ```yaml - "manufacturer entity/bootstrap token not verified against Convex" - "appendix \"Supplementary Information by Command\" (input terminal values, aspect values, eco-mode values, base-model-type values, sub-input values) was not included in the refined source excerpt — several DATA value enumerations referenced but not listed inline" - "appendix not in source excerpt.\"" - "appendix not in source excerpt).\"" - "no event/notification mechanism documented." - "no macros documented in source." - "source contains no explicit safety warnings, interlock procedures," - "input terminal value list (used by 018, 319-10) lives in appendix \"Supplementary Information by Command\" not present in the refined excerpt" - "aspect value list (030-12) lives in the same appendix" - "eco-mode value list (097-8 / 098-8) lives in the same appendix" - "base-model-type values (078-1 / 305-1) and sub-input setting values (097-198 / 098-198) live in the same appendix" - "firmware version compatibility not stated in source" - "flow_control not explicitly named (Full-duplex stated; RTS/CTS pins wired on D-SUB 9P)" - "default baud rate not stated — source lists five supported rates without indicating the default" ``` --- From the AI4AV catalog (https://ai4av.net) · ODbL-1.0

Sharp/NEC NC2402ML Control Spec

Summary

Transport

Traits

Actions

Feedbacks

Variables

Events

Macros

Safety

Notes

Source & contribution

Sharp/NEC NC2402ML Control Spec

Summary

Transport

Traits

Actions

Feedbacks

Variables

Events

Macros

Safety

Notes

Source & contribution