Summary
Sharp/NEC NC2043ML projector control spec. Binary command protocol over RS-232C serial (D-SUB 9P, PC CONTROL port) and wired/wireless LAN (TCP). Manual reference BDT140013 Rev 7.1 covers 53 commands: power, input switch, mutes, picture/volume/aspect/lens adjust, shutter, lens memory, info/status queries, eco mode, edge blending, PIP/PbP, audio select.
Transport
protocols:
- serial
- tcp
serial:
baud_rate: null # source lists 115200/38400/19200/9600/4800 bps as selectable; single value not fixed
data_bits: 8
parity: none
stop_bits: 1
flow_control: none # UNRESOLVED: source states "Full duplex" communication mode; flow_control hardware/software not specified
addressing:
port: 7142
auth:
type: none # inferred: no auth procedure in source
Traits
# - powerable # inferred from power on/off commands
# - queryable # inferred from extensive status query commands
# - routable # inferred from input switch command
# - levelable # inferred from volume/picture/aspect adjust commands
traits:
- powerable # inferred from 015/016 power on/off
- queryable # inferred from 009/037/053-1/060-1/078-*/084/097-* request commands
- routable # inferred from 018 input switch
- levelable # inferred from 030-1/030-2/030-12/030-15/053 lens adjust commands
Actions
# Command framing: every command/response is a hex byte frame, format documented as
# 20h 88h <ID1> <ID2> 0Ch <DATA01> - <DATA12> <CKS>
# where ID1 = control ID (projector-set), ID2 = model code (model-dependent),
# CKS = checksum = low-order byte of sum of all preceding bytes.
# Error responses share frame: A?h <CMD> <ID1> <ID2> 02h <ERR1> <ERR2> <CKS>
# Bytes below copied verbatim (incl. "h" hex suffix and double-space separators) from source.
- id: error_status_request
label: 009. Error Status Request
kind: query
command: "00h 88h 00h 00h 00h 88h"
params: []
notes: Response DATA01-DATA12 carry bit-field error info (cover/fan/temp/lamp/formatter/etc).
- id: power_on
label: 015. Power On
kind: action
command: "02h 00h 00h 00h 00h 02h"
params: []
notes: While turning on, no other command accepted.
- id: power_off
label: 016. Power Off
kind: action
command: "02h 01h 00h 00h 00h 03h"
params: []
notes: During power-off incl. cooling time, no other command accepted.
- id: input_sw_change
label: 018. Input SW Change
kind: action
command: "02h 03h 00h 00h 02h 01h <DATA01> <CKS>"
params:
- name: data01
type: integer
description: "Input terminal code (e.g. 06h = video port). Full list UNRESOLVED - deferred to Appendix 'Supplementary Information by Command'."
notes: "Example (video port): 02h 03h 00h 00h 02h 01h 06h 0Eh"
- id: picture_mute_on
label: 020. Picture Mute On
kind: action
command: "02h 10h 00h 00h 00h 12h"
params: []
- id: picture_mute_off
label: 021. Picture Mute Off
kind: action
command: "02h 11h 00h 00h 00h 13h"
params: []
- id: sound_mute_on
label: 022. Sound Mute On
kind: action
command: "02h 12h 00h 00h 00h 14h"
params: []
- id: sound_mute_off
label: 023. Sound Mute Off
kind: action
command: "02h 13h 00h 00h 00h 15h"
params: []
- id: onscreen_mute_on
label: 024. Onscreen Mute On
kind: action
command: "02h 14h 00h 00h 00h 16h"
params: []
- id: onscreen_mute_off
label: 025. Onscreen Mute Off
kind: action
command: "02h 15h 00h 00h 00h 17h"
params: []
- id: picture_adjust
label: 030-1. Picture Adjust
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)
notes: "Example brightness=10: 03h 10h 00h 00h 05h 00h FFh 00h 0Ah 00h 21h"
- id: volume_adjust
label: 030-2. Volume Adjust
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)
notes: "Example volume=10: 03h 10h 00h 00h 05h 05h 00h 00h 0Ah 00h 27h"
- id: aspect_adjust
label: 030-12. Aspect Adjust
kind: action
command: "03h 10h 00h 00h 05h 18h 00h 00h <DATA01> 00h <CKS>"
params:
- name: data01
type: integer
description: "Aspect value. UNRESOLVED - list deferred to Appendix 'Supplementary Information by Command'."
- id: other_adjust
label: 030-15. Other Adjust (Lamp/Light Adjust)
kind: action
command: "03h 10h 00h 00h 05h <DATA01> - <DATA05> <CKS>"
params:
- name: data01
type: integer
description: "Adjustment target: 96h = LAMP ADJUST / LIGHT ADJUST"
- name: data02
type: integer
description: "FFh fixed per source"
- 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
label: 037. Information Request
kind: query
command: "03h 8Ah 00h 00h 00h 8Dh"
params: []
notes: "Response DATA01-49 = projector name, DATA83-86 = lamp usage time (sec), DATA87-90 = filter usage time (sec)."
- id: filter_usage_information_request
label: 037-3. Filter Usage Information Request
kind: query
command: "03h 95h 00h 00h 00h 98h"
params: []
notes: "Response DATA01-04 = filter usage time (sec), DATA05-08 = filter alarm start time (sec). '-1' if undefined."
- id: lamp_information_request_3
label: 037-4. Lamp Information Request 3
kind: query
command: "03h 96h 00h 00h 02h <DATA01> <DATA02> <CKS>"
params:
- name: data01
type: integer
description: "00h=Lamp 1, 01h=Lamp 2 (two-lamp models only)"
- name: data02
type: integer
description: "Content: 01h=lamp usage time (sec), 04h=lamp remaining life (%)"
notes: "Example (lamp 1 usage): 03h 96h 00h 00h 02h 00h 01h 9Ch"
- id: carbon_savings_information_request
label: 037-6. Carbon Savings Information Request
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"
notes: "Response: DATA02-05 kg (max 99999), DATA06-09 mg (max 999999)."
- id: remote_key_code
label: 050. Remote Key Code
kind: action
command: "02h 0Fh 00h 00h 02h <DATA01> <DATA02> <CKS>"
params:
- name: data01
type: integer
description: "Key code WORD low byte. Examples: 02h=POWER ON, 03h=POWER OFF, 05h=AUTO, 06h=MENU, 07h=UP, 08h=DOWN, 09h=RIGHT, 0Ah=LEFT, 0Bh=ENTER, 0Ch=EXIT, 0Dh=HELP, 0Fh=MAGNIFY UP, 10h=MAGNIFY DOWN, 13h=MUTE, 29h=PICTURE, 4Bh=COMPUTER1, 4Ch=COMPUTER2, 4Fh=VIDEO1, 51h=S-VIDEO1, 84h=VOLUME UP, 85h=VOLUME DOWN, 8Ah=FREEZE, A3h=ASPECT, D7h=SOURCE, EEh=LAMP MODE/ECO"
- name: data02
type: integer
description: Key code WORD high byte (00h for all listed keys)
notes: "Example (AUTO): 02h 0Fh 00h 00h 02h 05h 00h 18h"
- id: shutter_close
label: 051. Shutter Close
kind: action
command: "02h 16h 00h 00h 00h 18h"
params: []
- id: shutter_open
label: 052. Shutter Open
kind: action
command: "02h 17h 00h 00h 00h 19h"
params: []
- id: lens_control
label: 053. Lens Control
kind: action
command: "02h 18h 00h 00h 02h <DATA01> <DATA02> <CKS>"
params:
- name: data01
type: integer
description: "Adjustment target. 06h = Periphery Focus. (Others UNRESOLVED - source only lists 06h explicitly in this row.)"
- name: data02
type: integer
description: "Content: 00h=Stop, 01h=drive 1s plus, 02h=drive 0.5s plus, 03h=drive 0.25s plus, 7Fh=drive plus (continuous), 81h=drive minus (continuous), FDh=drive 0.25s minus, FEh=drive 0.5s minus, FFh=drive 1s minus"
- id: lens_control_request
label: 053-1. Lens Control Request
kind: query
command: "02h 1Ch 00h 00h 02h <DATA01> 00h <CKS>"
params:
- name: data01
type: integer
description: "Adjustment target (same target codes as 053 LENS CONTROL)"
notes: "Response DATA02-03 = upper limit, DATA04-05 = lower limit, DATA06-07 = current value (16-bit)."
- id: lens_control_2
label: 053-2. Lens Control 2
kind: action
command: "02h 1Dh 00h 00h 04h <DATA01> - <DATA04> <CKS>"
params:
- name: data01
type: integer
description: "Adjustment target. FFh = 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
label: 053-3. Lens Memory Control
kind: action
command: "02h 1Eh 00h 00h 01h <DATA01> <CKS>"
params:
- name: data01
type: integer
description: "00h=MOVE, 01h=STORE, 02h=RESET"
- id: reference_lens_memory_control
label: 053-4. Reference Lens Memory Control
kind: action
command: "02h 1Fh 00h 00h 01h <DATA01> <CKS>"
params:
- name: data01
type: integer
description: "00h=MOVE, 01h=STORE, 02h=RESET"
notes: Controls profile selected by 053-10 LENS PROFILE SET.
- id: lens_memory_option_request
label: 053-5. Lens Memory Option Request
kind: query
command: "02h 20h 00h 00h 01h <DATA01> <CKS>"
params:
- name: data01
type: integer
description: "00h=LOAD BY SIGNAL, 01h=FORCED MUTE"
- id: lens_memory_option_set
label: 053-6. Lens Memory Option Set
kind: action
command: "02h 21h 00h 00h 02h <DATA01> <DATA02> <CKS>"
params:
- name: data01
type: integer
description: "00h=LOAD BY SIGNAL, 01h=FORCED MUTE"
- name: data02
type: integer
description: "Setting value: 00h=OFF, 01h=ON"
- id: lens_information_request
label: 053-7. Lens Information Request
kind: query
command: "02h 22h 00h 00h 01h 00h 25h"
params: []
notes: "Response DATA01 bit0=Lens memory, bit1=Zoom, bit2=Focus, bit3=Lens Shift (H), bit4=Lens Shift (V) - 0=Stop, 1=During operation."
- id: lens_profile_set
label: 053-10. Lens Profile Set
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
label: 053-11. Lens Profile Request
kind: query
command: "02h 28h 00h 00h 00h 2Ah"
params: []
- id: gain_parameter_request_3
label: 060-1. Gain Parameter Request 3
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"
notes: "Example (brightness): 03h 05h 00h 00h 03h 00h 00h 00h 0Bh"
- id: setting_request
label: 078-1. Setting Request
kind: query
command: "00h 85h 00h 00h 01h 00h 86h"
params: []
notes: "Response DATA01-03 = base model type, DATA04 = sound function (00h/01h), DATA05 = profile number."
- id: running_status_request
label: 078-2. Running Status Request
kind: query
command: "00h 85h 00h 00h 01h 01h 87h"
params: []
notes: "Response DATA03 = power status (00h=Standby, 01h=Power on), DATA04 = cooling process, DATA05 = power on/off process, DATA06 = operation status."
- id: input_status_request
label: 078-3. Input Status Request
kind: query
command: "00h 85h 00h 00h 01h 02h 88h"
params: []
- id: mute_status_request
label: 078-4. Mute Status Request
kind: query
command: "00h 85h 00h 00h 01h 03h 89h"
params: []
notes: "Response DATA01=Picture mute, DATA02=Sound mute, DATA03=Onscreen mute, DATA04=Forced onscreen mute, DATA05=Onscreen display."
- id: model_name_request
label: 078-5. Model Name Request
kind: query
command: "00h 85h 00h 00h 01h 04h 8Ah"
params: []
- id: cover_status_request
label: 078-6. Cover Status Request
kind: query
command: "00h 85h 00h 00h 01h 05h 8Bh"
params: []
notes: "Response DATA01: 00h=Normal (cover opened), 01h=Cover closed."
- id: freeze_control
label: 079. Freeze Control
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
label: 084. Information String Request
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
label: 097-8. Eco Mode Request
kind: query
command: "03h B0h 00h 00h 01h 07h BBh"
params: []
notes: Returns "Light mode" or "Lamp mode" depending on projector. Value list UNRESOLVED - Appendix.
- id: lan_projector_name_request
label: 097-45. LAN Projector Name Request
kind: query
command: "03h B0h 00h 00h 01h 2Ch E0h"
params: []
- id: lan_mac_address_status_request_2
label: 097-155. 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: 097-198. PIP/Picture By Picture Request
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
label: 097-243-1. Edge Blending Mode Request
kind: query
command: "03h B0h 00h 00h 02h DFh 00h 94h"
params: []
- id: eco_mode_set
label: 098-8. Eco Mode Set
kind: action
command: "03h B1h 00h 00h 02h 07h <DATA01> <CKS>"
params:
- name: data01
type: integer
description: "Eco mode value. UNRESOLVED - list deferred to Appendix 'Supplementary Information by Command'."
notes: Sets "Light mode" or "Lamp mode" depending on projector.
- id: lan_projector_name_set
label: 098-45. LAN Projector Name Set
kind: action
command: "03h B1h 00h 00h 12h 2Ch <DATA01> - <DATA16> 00h <CKS>"
params:
- name: name
type: string
description: "Projector name (up to 16 bytes), DATA01-16."
- id: pip_picture_by_picture_set
label: 098-198. PIP/Picture By Picture Set
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=TOP-LEFT, 01h=TOP-RIGHT, 02h=BOTTOM-LEFT, 03h=BOTTOM-RIGHT. Sub input values UNRESOLVED - Appendix."
- id: edge_blending_mode_set
label: 098-243-1. Edge Blending Mode Set
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
label: 305-1. Base Model Type Request
kind: query
command: "00h BFh 00h 00h 01h 00h C0h"
params: []
- id: serial_number_request
label: 305-2. Serial Number Request
kind: query
command: "00h BFh 00h 00h 02h 01h 06h C8h"
params: []
- id: basic_information_request
label: 305-3. Basic Information Request
kind: query
command: "00h BFh 00h 00h 01h 02h C2h"
params: []
notes: "Response DATA01=operation status, DATA02=content displayed, DATA03-05=signal types, DATA06-09=mutes/freeze."
- id: audio_select_set
label: 319-10. Audio Select Set
kind: action
command: "03h C9h 00h 00h 03h 09h <DATA01> <DATA02> <CKS>"
params:
- name: data01
type: integer
description: "Input terminal code. UNRESOLVED - list deferred to Appendix."
- name: data02
type: integer
description: "Setting value: 00h=terminal in DATA01, 01h=BNC, 02h=COMPUTER"
Feedbacks
# One entry per observable state or query response. Most queries above return
# structured binary responses; observable state values documented below.
- id: power_state
type: enum
values: [standby, power_on, cooling]
source: "078-2 DATA03: 00h=Standby, 01h=Power on; DATA06: 05h=Cooling"
- 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: freeze_state
type: enum
values: [off, on]
source: "305-3 DATA09"
- id: cover_state
type: enum
values: [normal_opened, closed]
source: "078-6 DATA01"
- id: lamp_remaining_life_percent
type: number
source: "037-4 DATA02=04h, DATA03-06. Negative if past replacement deadline."
- id: error_flags
type: bitmask
source: "009 response DATA01-DATA12 - cover/fan/temp/lamp/formatter/interlock bits"
Variables
# Settable parameters that are not discrete actions.
- id: projector_name
type: string
max_length: 16
set_via: "098-45 LAN PROJECTOR NAME SET"
get_via: "097-45 LAN PROJECTOR NAME REQUEST"
- id: eco_mode
type: enum
set_via: "098-8 ECO MODE SET"
get_via: "097-8 ECO MODE REQUEST"
values: null # UNRESOLVED - value list deferred to Appendix
- id: edge_blending_mode
type: enum
values: [off, on]
set_via: "098-243-1 EDGE BLENDING MODE SET"
get_via: "097-243-1 EDGE BLENDING MODE REQUEST"
- id: brightness
type: integer
set_via: "030-1 PICTURE ADJUST (DATA01=00h)"
get_via: "060-1 GAIN PARAMETER REQUEST 3 (DATA01=00h)"
- id: contrast
type: integer
set_via: "030-1 PICTURE ADJUST (DATA01=01h)"
get_via: "060-1 GAIN PARAMETER REQUEST 3 (DATA01=01h)"
- id: color
type: integer
set_via: "030-1 PICTURE ADJUST (DATA01=02h)"
get_via: "060-1 GAIN PARAMETER REQUEST 3 (DATA01=02h)"
- id: hue
type: integer
set_via: "030-1 PICTURE ADJUST (DATA01=03h)"
get_via: "060-1 GAIN PARAMETER REQUEST 3 (DATA01=03h)"
- id: sharpness
type: integer
set_via: "030-1 PICTURE ADJUST (DATA01=04h)"
get_via: "060-1 GAIN PARAMETER REQUEST 3 (DATA01=04h)"
- id: volume
type: integer
set_via: "030-2 VOLUME ADJUST"
get_via: "060-1 GAIN PARAMETER REQUEST 3 (DATA01=05h)"
- id: lamp_light_adjust
type: integer
set_via: "030-15 OTHER ADJUST (DATA01=96h)"
get_via: "060-1 GAIN PARAMETER REQUEST 3 (DATA01=96h)"
Events
# No unsolicited notifications documented. All responses are command-acknowledgement.
# UNRESOLVED: device may push async status - not stated in source.
Macros
# No multi-step sequences described explicitly in source.
Safety
confirmation_required_for: []
interlocks:
- "Power ON (015): while turning on, no other command accepted."
- "Power OFF (016): during power-off incl. cooling time, no other command accepted."
- "Error code 02h 0Dh: command rejected when power is off."
# UNRESOLVED: no explicit safety warnings, power-on sequencing procedures, or
# hardware interlocks (other than command-rejection interlocks listed) stated in source.
Notes
- Manual reference: BDT140013 Revision 7.1.
- Two transport options documented: RS-232C serial (D-SUB 9P cross cable) and LAN (wired RJ-45 10/100 or wireless LAN unit). TCP port 7142 for LAN.
- Serial cable pinout documented (RxD/TxD/GND/RTS/CTS) — see source connection section.
- Command framing: leading bytes set message class (00h–03h = request, 20h–23h = success response, A0h–A3h = error response). Second byte = command opcode. Followed by
<ID1> <ID2>, length byte, data, checksum. - Checksum: low-order byte of sum of all preceding bytes.
- Lamp/filter usage time returned in seconds, updated at 1-minute intervals.
- Many value lists (input terminal codes, aspect values, eco mode values, base model types, sub-input settings) are deferred by the source to an Appendix "Supplementary Information by Command" not contained in this refined document.
Spec built. 53 actions enumerate all source rows. Serial+TCP both populated (port 7142 stated). Baud left unresolved (5 selectable, no default). Appendix-deferred value lists marked UNRESOLVED throughout. Checksum framing preserved verbatim.
## 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: 2026-06-16T15:11:28.923Z
last_checked_at: 2026-06-18T08:33:25.510Z
```
## Verification Summary
```yaml
verdict: verified
checked_at: 2026-06-18T08:33:25.510Z
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. (12 unresolved item(s) noted in Known Gaps.)"
```
## Known Gaps
```yaml
- "input terminal value list (DATA01 codes) referenced as Appendix \"Supplementary Information by Command\" — not in this refined doc. Eco mode values, base model type values, aspect values also deferred to that appendix."
- "source states \"Full duplex\" communication mode; flow_control hardware/software not specified"
- "device may push async status - not stated in source."
- "no explicit safety warnings, power-on sequencing procedures, or"
- "firmware version compatibility not stated in source"
- "input terminal DATA01 code list — deferred to Appendix"
- "aspect value list — deferred to Appendix"
- "eco mode value list — deferred to Appendix"
- "base model type value list — deferred to Appendix"
- "PIP/PbP sub-input setting value list — deferred to Appendix"
- "serial flow_control (hardware/software) — source only states \"Full duplex\" mode"
- "single fixed baud rate — source lists 5 selectable rates, no default stated"
```
---
From the AI4AV catalog (https://ai4av.net) · ODbL-1.0