Summary
Sharp/NEC Ld D151 F is a projector controllable over RS-232C serial (PC CONTROL D-SUB 9P) and TCP/IP LAN (wired RJ-45 or wireless LAN unit, TCP port 7142). The protocol uses binary command frames in hexadecimal notation, terminated by a low-byte additive checksum (CKS). This spec enumerates all 53 commands documented in the Projector Control Command Reference Manual (BDT140013 Rev 7.1).
Transport
protocols:
- tcp
- serial
addressing:
port: 7142
serial:
baud_rate: 9600 # source lists 115200/38400/19200/9600/4800 as supported; default not stated
data_bits: 8
parity: none
stop_bits: 1
flow_control: none # source states "Full duplex" communication mode
auth:
type: none # inferred: no auth procedure in source
Traits
traits:
- powerable # inferred: POWER ON / POWER OFF commands present
- queryable # inferred: many request commands returning state present
- levelable # inferred: PICTURE / VOLUME / LAMP ADJUST commands present
- routable # inferred: INPUT SW CHANGE command present
Actions
actions:
- id: power_on
label: Power On
kind: action
command: "02h 00h 00h 00h 00h 02h"
params: []
notes: "While turning power on, no other command is accepted."
- id: power_off
label: Power Off
kind: action
command: "02h 01h 00h 00h 00h 03h"
params: []
notes: "During power-off (including cooling time), no other command is accepted."
- id: input_switch
label: Input SW Change
kind: action
command: "02h 03h 00h 00h 02h 01h {data01} {cks}"
params:
- name: data01
type: string
description: "Input terminal value (e.g. 06h = video port). Values listed in Appendix 'Supplementary Information by Command' (not in refined source)."
- name: cks
type: string
description: "Checksum: low-order byte of additive sum of all preceding bytes."
- id: picture_mute_on
label: Picture Mute On
kind: action
command: "02h 10h 00h 00h 00h 12h"
params: []
notes: "Cleared on input/video signal switch."
- 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: []
notes: "Cleared on input/video switch or volume adjustment."
- 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: []
notes: "Cleared on input/video signal switch."
- 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 additive 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 additive 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: "Aspect value. Values listed in Appendix 'Supplementary Information by Command' (not in refined source)."
- name: cks
type: string
description: "Checksum: low-order byte of additive 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. Source documents DATA01=96h, DATA02=FFh as LAMP ADJUST / LIGHT ADJUST."
- name: data02
type: string
description: "FFh for LAMP ADJUST / LIGHT ADJUST target."
- 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 additive 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 (WORD type). Source table: 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: string
description: "Key code high byte. Always 00h per source key code list."
- name: cks
type: string
description: "Checksum: low-order byte of additive 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: "Adjustment target. Source documents 06h=Periphery Focus."
- name: data02
type: string
description: "Content: 00h=Stop, 01h=drive 1s plus, 02h=drive 0.5s plus, 03h=drive 0.25s plus, 7Fh=drive plus, 81h=drive minus, FDh=drive 0.25s minus, FEh=drive 0.5s minus, FFh=drive 1s minus."
- name: cks
type: string
description: "Checksum: low-order byte of additive sum of all preceding bytes."
notes: "While lens driving, can re-issue same command to change direction without stop."
- 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: "Adjustment target. FFh=Stop (skips mode/value)."
- 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 additive 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 additive 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 additive sum of all preceding bytes."
notes: "Controls the profile number specified by LENS PROFILE SET (053-10)."
- 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 additive 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 additive 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 additive 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. Values listed in Appendix 'Supplementary Information by Command' (not in refined source)."
- name: cks
type: string
description: "Checksum: low-order byte of additive sum of all preceding bytes."
notes: "Sets 'Light mode' or 'Lamp mode' depending on projector."
- id: lan_projector_name_set
label: LAN Projector Name Set
kind: action
command: "03h B1h 00h 00h 12h 2Ch {data01-16} 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 additive 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. For MODE: 00h=PIP, 01h=PICTURE BY PICTURE. For START POSITION: 00h=TOP-LEFT, 01h=TOP-RIGHT, 02h=BOTTOM-LEFT, 03h=BOTTOM-RIGHT. Sub input values listed in Appendix (not in refined source)."
- name: cks
type: string
description: "Checksum: low-order byte of additive 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 additive 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. Values listed in Appendix 'Supplementary Information by Command' (not in refined source)."
- name: data02
type: string
description: "Setting value: 00h=the terminal specified in DATA01, 01h=BNC, 02h=COMPUTER."
- name: cks
type: string
description: "Checksum: low-order byte of additive sum of all preceding bytes."
# --- Queries ---
- id: error_status_request
label: Error Status Request
kind: query
command: "00h 88h 00h 00h 00h 88h"
params: []
notes: "Returns DATA01-DATA12, bitfield error info (cover, fan, temp, lamp, etc.)."
- id: information_request
label: Information Request
kind: query
command: "03h 8Ah 00h 00h 00h 8Dh"
params: []
notes: "Returns projector name (DATA01-49), lamp usage time seconds (DATA83-86), filter usage time seconds (DATA87-90). Updated 1-min intervals."
- id: filter_usage_information_request
label: Filter Usage Information Request
kind: query
command: "03h 95h 00h 00h 00h 98h"
params: []
notes: "Returns filter usage time (DATA01-04) and filter alarm start time (DATA05-08) in seconds. -1 if undefined."
- 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 selector: 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 additive sum of all preceding bytes."
notes: "Negative remaining life (%) returned if replacement deadline exceeded."
- 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 additive 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: "Adjustment target (e.g. 06h=Periphery Focus)."
- name: cks
type: string
description: "Checksum: low-order byte of additive sum of all preceding bytes."
notes: "Returns upper/lower adjustment limits and current value."
- 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 additive sum of all preceding bytes."
- id: lens_information_request
label: Lens Information Request
kind: query
command: "02h 22h 00h 00h 01h 00h 25h"
params: []
notes: "Returns bitfield lens operation status (lens memory, zoom, focus, lens shift H/V)."
- id: lens_profile_request
label: Lens Profile Request
kind: query
command: "02h 28h 00h 00h 00h 2Ah"
params: []
notes: "Returns selected profile number (00h=Profile 1, 01h=Profile 2)."
- 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 ADJUST / LIGHT ADJUST."
- name: cks
type: string
description: "Checksum: low-order byte of additive sum of all preceding bytes."
- id: setting_request
label: Setting Request
kind: query
command: "00h 85h 00h 00h 01h 00h 86h"
params: []
notes: "Returns base model type (DATA01-03), sound function availability (DATA04), profile/clock function (DATA05)."
- id: running_status_request
label: Running Status Request
kind: query
command: "00h 85h 00h 00h 01h 01h 87h"
params: []
notes: "Returns power status, cooling process, power on/off process, operation status."
- id: input_status_request
label: Input Status Request
kind: query
command: "00h 85h 00h 00h 01h 02h 88h"
params: []
notes: "Returns signal switch process, signal list number, selection signal type 1/2, signal list type, test pattern, content displayed."
- id: mute_status_request
label: Mute Status Request
kind: query
command: "00h 85h 00h 00h 01h 03h 89h"
params: []
notes: "Returns picture mute, sound mute, onscreen mute, forced onscreen mute, onscreen display states."
- 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: []
notes: "Returns mirror/lens cover status: 00h=Normal (opened), 01h=Cover closed."
- 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 additive sum of all preceding bytes."
- id: eco_mode_request
label: Eco Mode Request
kind: query
command: "03h B0h 00h 00h 01h 07h BBh"
params: []
notes: "Returns eco mode / light mode / lamp mode value. Values listed in Appendix (not in refined source)."
- 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_request_2
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 additive 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: []
notes: "Returns base model type and model name. Type values listed in Appendix (not in refined source)."
- 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: []
notes: "Returns operation status, content displayed, signal types, mute states, freeze status."
Feedbacks
feedbacks:
- id: error_status
type: bitfield
description: "DATA01-DATA12 error bits (cover, fan, temperature, lamp off/replacement, formatter, FPGA, mirror cover, ballast comms, iris calibration, lens install, interlock switch open, system errors)."
- id: power_state
type: enum
values: [standby, power_on, cooling, standby_error, standby_power_saving, network_standby]
description: "From RUNNING STATUS REQUEST DATA03-DATA06 and BASIC INFORMATION REQUEST DATA01."
- id: mute_state
type: composite
description: "From MUTE STATUS REQUEST: picture mute, sound mute, onscreen mute, forced onscreen mute, onscreen display."
- id: cover_state
type: enum
values: [normal_opened, cover_closed]
- id: lens_operation_state
type: bitfield
description: "From LENS INFORMATION REQUEST DATA01: lens memory, zoom, focus, lens shift H, lens shift V (stop / during operation)."
- id: input_signal_state
type: composite
description: "From INPUT STATUS REQUEST: signal list number, signal type, content displayed, test pattern state."
Variables
variables:
- id: lamp_usage_time
type: integer
unit: seconds
description: "From INFORMATION REQUEST DATA83-86 or LAMP INFORMATION REQUEST 3. Updated 1-min intervals."
- id: filter_usage_time
type: integer
unit: seconds
description: "From INFORMATION REQUEST DATA87-90 or FILTER USAGE INFORMATION REQUEST DATA01-04."
- id: lamp_remaining_life
type: integer
unit: percent
description: "From LAMP INFORMATION REQUEST 3 (content 04h). Negative if deadline exceeded."
- id: carbon_savings
type: composite
unit: "kg + mg"
description: "From CARBON SAVINGS INFORMATION REQUEST. Max 99999 kg + 999999 mg."
- id: picture_brightness
type: integer
description: "Adjustment range and current value from GAIN PARAMETER REQUEST 3 (00h)."
- id: picture_contrast
type: integer
description: "From GAIN PARAMETER REQUEST 3 (01h)."
- id: picture_color
type: integer
description: "From GAIN PARAMETER REQUEST 3 (02h)."
- id: picture_hue
type: integer
description: "From GAIN PARAMETER REQUEST 3 (03h)."
- id: picture_sharpness
type: integer
description: "From GAIN PARAMETER REQUEST 3 (04h)."
- id: volume
type: integer
description: "From GAIN PARAMETER REQUEST 3 (05h)."
- id: lamp_light_adjust
type: integer
description: "From GAIN PARAMETER REQUEST 3 (96h)."
Events
# UNRESOLVED: source describes no unsolicited notifications / push events.
# All data is obtained via explicit request commands.
Macros
# UNRESOLVED: source describes no multi-step macro sequences.
Safety
confirmation_required_for: []
interlocks:
- command: power_on
note: "While powering on, no other command is accepted."
- command: power_off
note: "During power-off (including cooling time), no other command is accepted."
- command: "*"
note: "Commands return ERR1=02h ERR2=0Dh when power is off ('The command cannot be accepted because the power is off')."
# UNRESOLVED: no power-on sequencing interlocks beyond command-acceptance notes above.
Notes
- Frame format: Commands are binary hex frames. Format documented as
<header> <cmd byte> <ID1> <ID2> <LEN> <DATA...> <CKS>. Response headers:2xh=success (no data),2xhwith DATA=success (with data),Axh=error with ERR1/ERR2. - Checksum (CKS): Low-order one byte (8 bits) of additive sum of all preceding bytes. Example:
20h+81h+01h+60h+01h+00h = 103h → CKS = 03h. - ID1 (Control ID): Value of "control ID" set on projector.
- ID2 (Model code): Varies by model.
- Serial: RS-232C cross cable, D-SUB 9P PC CONTROL port. Pin assignment: 2=RxD, 3=TxD, 5=GND, 7=RTS, 8=CTS.
- LAN: TCP port 7142. Wired RJ-45 (10/100 Mbps auto) or wireless LAN unit.
- Error codes: Full ERR1/ERR2 table documented in source section 2.4 (00h-03h ranges covering unrecognized command, unsupported model, invalid value, invalid input, memory errors, no signal, power off, no authority, gain errors, etc.).
- Appendix "Supplementary Information by Command" referenced for: input terminal values, aspect values, base model types, sub input values, eco mode 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: 2026-06-16T18:44:48.150Z
last_checked_at: 2026-06-17T19:59:52.711Z
Verification Summary
verdict: verified
checked_at: 2026-06-17T19:59:52.711Z
matched_actions: 53
action_count: 53
confidence: medium
summary: "All 53 spec action commands match verbatim with source protocol documentation; transport parameters confirmed in source; full bidirectional coverage. (17 unresolved item(s) noted in Known Gaps.)"
Known Gaps
- "firmware version compatibility not stated in source"
- "model code (ID2) value for Ld D151 F not stated in source — varies by model"
- "control ID (ID1) default value not stated in source"
- "appendix \"Supplementary Information by Command\" (input terminal values, aspect values, base model types, sub input values, eco mode values) not present in refined source"
- "source describes no unsolicited notifications / push events."
- "source describes no multi-step macro sequences."
- "no power-on sequencing interlocks beyond command-acceptance notes above."
- "default value not stated"
- "Ld D151 F model code not stated"
- "appendix not present in refined source"
- "ID1 (control ID) default value not stated"
- "ID2 (model code) for Ld D151 F not stated"
- "input terminal DATA01 value enumeration (referenced appendix missing)"
- "aspect value enumeration (referenced appendix missing)"
- "base model type value enumeration (referenced appendix missing)"
- "eco mode value enumeration (referenced appendix missing)"
- "PIP/PbP sub input setting value enumeration (referenced appendix missing)"
From the AI4AV catalog (https://ai4av.net) · ODbL-1.0