Summary
Sharp/NEC Xp M401H W projector control spec covering RS-232C serial and TCP/IP (wired/wireless LAN) control. Commands are binary hex frames with a trailing checksum byte. Covers power, input switching, mute, picture/volume/aspect adjust, lens control, lens memory, status queries, eco mode, PIP/PbP, edge blending, and information requests.
Transport
protocols:
- serial
- tcp
serial:
baud_rate: 115200 # source lists supported rates: 115200 / 38400 / 19200 / 9600 / 4800 bps
data_bits: 8
parity: none
stop_bits: 1
flow_control: null # UNRESOLVED: RTS/CTS pins present in pinout but flow control mode not explicitly stated
addressing:
port: 7142
auth:
type: none # inferred: no auth procedure in source
# Note: RS-232C cross cable on PC CONTROL (D-SUB 9P); TxD/RxD and RTS/CTS cross-connected.
# Communication mode: Full duplex. Checksum = low-order one byte of sum of all preceding bytes.
# TCP port 7142 used for LAN command send/receive.
Traits
- powerable # inferred from POWER ON / POWER OFF commands
- queryable # inferred from numerous status request commands
- levelable # inferred from PICTURE/VOLUME/LAMP adjust commands
- shutterable # inferred from SHUTTER CLOSE / OPEN commands
Actions
# All payloads are hex bytes, verbatim from source. <CKS> = checksum (low-order one byte of the
# sum of all preceding bytes). <DATA??> are variable parameter bytes. Command frame structure:
# [CmdHi] [CmdLo] 00h 00h [LEN] [DATA...] [CKS]. Response frames set high bit on CmdHi (e.g.
# 20h/21h/22h/23h for success, A0h/A1h/A2h/A3h for error).
- id: error_status_request
label: Error Status Request
kind: query
command: "00h 88h 00h 00h 00h 88h"
params: []
- id: power_on
label: Power On
kind: action
command: "02h 00h 00h 00h 00h 02h"
params: []
notes: While turning on power, no other command accepted.
- id: power_off
label: Power Off
kind: action
command: "02h 01h 00h 00h 00h 03h"
params: []
notes: While turning off (including cooling time), no other command accepted.
- id: input_sw_change
label: Input Switch Change
kind: action
command: "02h 03h 00h 00h 02h 01h {input} <CKS>"
params:
- name: input
type: integer
description: Input terminal (DATA01). Values defined in source Appendix "Supplementary Information by Command". Example 06h = video port.
notes: "Example to video port: 02h 03h 00h 00h 02h 01h 06h 0Eh"
- 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 {target} FFh {mode} {value_lo} {value_hi} <CKS>"
params:
- name: target
type: integer
description: "DATA01 adjustment target: 00h=Brightness, 01h=Contrast, 02h=Color, 03h=Hue, 04h=Sharpness"
- name: mode
type: integer
description: "DATA02 mode: 00h=absolute, 01h=relative"
- name: value_lo
type: integer
description: DATA03 adjustment value (low-order 8 bits)
- name: value_hi
type: integer
description: DATA04 adjustment value (high-order 8 bits)
notes: "Brightness=10 example: 03h 10h 00h 00h 05h 00h FFh 00h 0Ah 00h 21h"
- id: volume_adjust
label: Volume Adjust
kind: action
command: "03h 10h 00h 00h 05h 05h 00h {mode} {value_lo} {value_hi} <CKS>"
params:
- name: mode
type: integer
description: "DATA01 mode: 00h=absolute, 01h=relative"
- name: value_lo
type: integer
description: DATA02 adjustment value (low-order 8 bits)
- name: value_hi
type: integer
description: DATA03 adjustment value (high-order 8 bits)
notes: "Volume=10 example: 03h 10h 00h 00h 05h 05h 00h 00h 0Ah 00h 27h"
- id: aspect_adjust
label: Aspect Adjust
kind: action
command: "03h 10h 00h 00h 05h 18h 00h 00h {aspect} 00h <CKS>"
params:
- name: aspect
type: integer
description: DATA01 aspect value (see source Appendix "Supplementary Information by Command")
- id: other_adjust_lamp_light
label: Other Adjust (Lamp/Light Adjust)
kind: action
command: "03h 10h 00h 00h 05h {target_lo} {target_hi} {mode} {value_lo} {value_hi} <CKS>"
params:
- name: target_lo
type: integer
description: "DATA01: 96h for LAMP ADJUST / LIGHT ADJUST"
- name: target_hi
type: integer
description: "DATA02: FFh for LAMP ADJUST / LIGHT ADJUST"
- name: mode
type: integer
description: "DATA03 mode: 00h=absolute, 01h=relative"
- name: value_lo
type: integer
description: DATA04 adjustment value (low-order 8 bits)
- name: value_hi
type: integer
description: DATA05 adjustment value (high-order 8 bits)
- 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 at 1-minute 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 seconds (DATA01-04) and filter alarm start time seconds (DATA05-08). -1 if undefined.
- id: lamp_information_request_3
label: Lamp Information Request 3
kind: query
command: "03h 96h 00h 00h 02h {lamp} {content} <CKS>"
params:
- name: lamp
type: integer
description: "DATA01: 00h=Lamp 1, 01h=Lamp 2 (two-lamp models only)"
- name: content
type: integer
description: "DATA02: 01h=lamp usage time (seconds), 04h=lamp remaining life (%)"
notes: Values reflect eco mode if enabled. Negative remaining life if replacement deadline exceeded.
- id: carbon_savings_information_request
label: Carbon Savings Information Request
kind: query
command: "03h 9Ah 00h 00h 01h {type} <CKS>"
params:
- name: type
type: integer
description: "DATA01: 00h=Total Carbon Savings, 01h=Carbon Savings during operation"
- id: remote_key_code
label: Remote Key Code
kind: action
command: "02h 0Fh 00h 00h 02h {key_lo} {key_hi} <CKS>"
params:
- name: key_lo
type: integer
description: "DATA01 key code low byte (e.g. 05h=AUTO, 06h=MENU, 07h=UP, 4Bh=COMPUTER1, 8Ah=FREEZE)"
- name: key_hi
type: integer
description: DATA02 key code high byte (00h for all listed keys)
notes: "AUTO example: 02h 0Fh 00h 00h 02h 05h 00h 18h"
- 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 {target} {content} <CKS>"
params:
- name: target
type: integer
description: "DATA01: 06h=Periphery Focus"
- name: content
type: integer
description: "DATA02: 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"
notes: After 7Fh/81h, send 00h to stop. Lens can be controlled without stop while driving by re-issuing same command.
- id: lens_control_request
label: Lens Control Request
kind: query
command: "02h 1Ch 00h 00h 02h {target} 00h <CKS>"
params:
- name: target
type: integer
description: DATA01 lens target
notes: Returns upper/lower limits and current value (16-bit each).
- id: lens_control_2
label: Lens Control 2
kind: action
command: "02h 1Dh 00h 00h 04h {target} {mode} {value_lo} {value_hi} <CKS>"
params:
- name: target
type: integer
description: "DATA01: FFh=Stop"
- name: mode
type: integer
description: "DATA02: 00h=absolute, 02h=relative"
- name: value_lo
type: integer
description: DATA03 adjustment value (low-order 8 bits)
- name: value_hi
type: integer
description: DATA04 adjustment value (high-order 8 bits)
notes: If Stop specified, mode/value not referenced.
- id: lens_memory_control
label: Lens Memory Control
kind: action
command: "02h 1Eh 00h 00h 01h {operation} <CKS>"
params:
- name: operation
type: integer
description: "DATA01: 00h=MOVE, 01h=STORE, 02h=RESET"
- id: reference_lens_memory_control
label: Reference Lens Memory Control
kind: action
command: "02h 1Fh 00h 00h 01h {operation} <CKS>"
params:
- name: operation
type: integer
description: "DATA01: 00h=MOVE, 01h=STORE, 02h=RESET"
notes: Controls profile number specified in LENS PROFILE SET.
- id: lens_memory_option_request
label: Lens Memory Option Request
kind: query
command: "02h 20h 00h 00h 01h {option} <CKS>"
params:
- name: option
type: integer
description: "DATA01: 00h=LOAD BY SIGNAL, 01h=FORCED MUTE"
- id: lens_memory_option_set
label: Lens Memory Option Set
kind: action
command: "02h 21h 00h 00h 02h {option} {value} <CKS>"
params:
- name: option
type: integer
description: "DATA01: 00h=LOAD BY SIGNAL, 01h=FORCED MUTE"
- name: value
type: integer
description: "DATA02: 00h=OFF, 01h=ON"
- id: lens_information_request
label: Lens Information Request
kind: query
command: "02h 22h 00h 00h 01h 00h 25h"
params: []
notes: Returns DATA01 bitfield: 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: Lens Profile Set
kind: action
command: "02h 27h 00h 00h 01h {profile} <CKS>"
params:
- name: profile
type: integer
description: "DATA01: 00h=Profile 1, 01h=Profile 2"
- id: lens_profile_request
label: Lens Profile Request
kind: query
command: "02h 28h 00h 00h 00h 2Ah"
params: []
notes: Returns DATA01 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 {name} 00h 00h <CKS>"
params:
- name: name
type: integer
description: "DATA01 adjusted value name: 00h=BRIGHTNESS, 01h=CONTRAST, 02h=COLOR, 03h=HUE, 04h=SHARPNESS, 05h=VOLUME, 96h=LAMP/LIGHT ADJUST"
notes: Returns status, limits, default, current value, wide/narrow adjustment widths.
- 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 (DATA04), profile/clock/sleep (DATA05).
- id: running_status_request
label: Running Status Request
kind: query
command: "00h 85h 00h 00h 01h 01h 87h"
params: []
notes: Returns power status (DATA03), cooling process (DATA04), power on/off process (DATA05), operation status (DATA06).
- 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 types, 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/sound/onscreen/forced-onscreen mute and OSD display flags.
- id: model_name_request
label: Model Name Request
kind: query
command: "00h 85h 00h 00h 01h 04h 8Ah"
params: []
notes: Returns model name string (DATA01-32, NUL terminated).
- id: cover_status_request
label: Cover Status Request
kind: query
command: "00h 85h 00h 00h 01h 05h 8Bh"
params: []
notes: "Returns DATA01: 00h=Normal (cover opened), 01h=Cover closed."
- id: freeze_control
label: Freeze Control
kind: action
command: "01h 98h 00h 00h 01h {state} <CKS>"
params:
- name: state
type: integer
description: "DATA01: 01h=freeze on, 02h=freeze off"
- id: information_string_request
label: Information String Request
kind: query
command: "00h D0h 00h 00h 03h 00h {type} 01h <CKS>"
params:
- name: type
type: integer
description: "DATA01: 03h=Horizontal synchronous frequency, 04h=Vertical synchronous frequency"
- id: eco_mode_request
label: Eco Mode Request
kind: query
command: "03h B0h 00h 00h 01h 07h BBh"
params: []
notes: Returns Light mode / Lamp mode value (see source Appendix).
- id: lan_projector_name_request
label: LAN Projector Name Request
kind: query
command: "03h B0h 00h 00h 01h 2Ch E0h"
params: []
notes: Returns projector name string (DATA01-17, NUL terminated).
- id: lan_mac_address_request_2
label: LAN MAC Address Status Request 2
kind: query
command: "03h B0h 00h 00h 02h 9Ah 00h 4Fh"
params: []
notes: Returns MAC address (DATA01-06).
- id: pip_pbp_request
label: PIP/Picture By Picture Request
kind: query
command: "03h B0h 00h 00h 02h C5h {item} <CKS>"
params:
- name: item
type: integer
description: "DATA01: 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: Edge Blending Mode Request
kind: query
command: "03h B0h 00h 00h 02h DFh 00h 94h"
params: []
notes: "Returns DATA01: 00h=OFF, 01h=ON."
- id: eco_mode_set
label: Eco Mode Set
kind: action
command: "03h B1h 00h 00h 02h 07h {value} <CKS>"
params:
- name: value
type: integer
description: DATA01 eco mode value (see source Appendix "Supplementary Information by Command")
- id: lan_projector_name_set
label: LAN Projector Name Set
kind: action
command: "03h B1h 00h 00h 12h 2Ch {name01} - {name16} 00h <CKS>"
params:
- name: name
type: string
description: Projector name (up to 16 bytes, DATA01-16)
notes: Sets projector name; NUL-terminated.
- id: pip_pbp_set
label: PIP/Picture By Picture Set
kind: action
command: "03h B1h 00h 00h 03h C5h {item} {value} <CKS>"
params:
- name: item
type: integer
description: "DATA01: 00h=MODE, 01h=START POSITION, 02h=SUB INPUT/SUB INPUT 1, 09h=SUB INPUT 2, 0Ah=SUB INPUT 3"
- name: value
type: integer
description: "DATA02 setting value (MODE: 00h=PIP/01h=PICTURE BY PICTURE; START POSITION: 00h=TOP-LEFT..03h=BOTTOM-RIGHT; sub input values see Appendix)"
- id: edge_blending_mode_set
label: Edge Blending Mode Set
kind: action
command: "03h B1h 00h 00h 03h DFh 00h {value} <CKS>"
params:
- name: value
type: integer
description: "DATA01: 00h=OFF, 01h=ON"
- 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 (DATA01-02, DATA12-13) and model name (DATA03-11).
- id: serial_number_request
label: Serial Number Request
kind: query
command: "00h BFh 00h 00h 02h 01h 06h C8h"
params: []
notes: Returns serial number string (DATA01-16, NUL terminated).
- 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, selection signal types, signal type, video/sound/onscreen mute, freeze status.
- id: audio_select_set
label: Audio Select Set
kind: action
command: "03h C9h 00h 00h 03h 09h {input} {setting} <CKS>"
params:
- name: input
type: integer
description: DATA01 input terminal (see source Appendix "Supplementary Information by Command")
- name: setting
type: integer
description: "DATA02: 00h=terminal specified in DATA01, 01h=BNC, 02h=COMPUTER"
Feedbacks
# Responses to queries; success response sets high bit on CmdHi (20h/23h), error uses A0h/A3h with ERR1/ERR2.
- id: power_state
type: enum
values: [standby, power_on, cooling, standby_error, standby_power_saving, network_standby]
source: running_status_request DATA06; basic_information_request DATA01
- id: error_status
type: bitmask
description: 12-byte error information bitfield (DATA01-12). Bit=1 indicates error.
fields:
- DATA01 bit0: cover error
- DATA01 bit3: fan error
- DATA01 bit4: fan error
- DATA01 bit5: power error
- DATA01 bit6: lamp off / backlight off
- DATA01 bit7: lamp replacement moratorium
- DATA02 bit0: lamp usage time exceeded
- DATA02 bit1: formatter error
- DATA02 bit2: lamp 2 off
- DATA03 bit1: FPGA error
- DATA03 bit2: temperature error (sensor)
- DATA03 bit3: lamp not present
- DATA03 bit4: lamp data error
- DATA03 bit5: mirror cover error
- DATA03 bit6: lamp 2 replacement moratorium
- DATA03 bit7: lamp 2 usage time exceeded
- DATA04 bit0: lamp 2 not present
- DATA04 bit1: lamp 2 data error
- DATA04 bit2: temperature error due to dust
- DATA04 bit3: foreign matter sensor error
- DATA04 bit5: ballast communication error
- DATA04 bit6: iris calibration error
- DATA04 bit7: lens not installed properly
- DATA09 bit1: interlock switch open
- DATA09 bit2: system error (Slave CPU)
- DATA09 bit3: system error (Formatter)
- id: lamp_usage_time
type: integer
unit: seconds
source: information_request DATA83-86; lamp_information_request_3 (DATA01=00h content=01h)
- id: lamp_remaining_life
type: integer
unit: percent
source: lamp_information_request_3 (content=04h)
- id: filter_usage_time
type: integer
unit: seconds
source: filter_usage_information_request DATA01-04
- id: mute_status
type: object
fields: [picture_mute, sound_mute, onscreen_mute, forced_onscreen_mute, osd_display]
source: mute_status_request
- id: cover_status
type: enum
values: [normal_opened, cover_closed]
source: cover_status_request DATA01
- id: eco_mode
type: integer
source: eco_mode_request DATA01
- id: edge_blending_mode
type: enum
values: [off, on]
source: edge_blending_mode_request DATA01
- id: model_name
type: string
source: model_name_request
- id: serial_number
type: string
source: serial_number_request
- id: mac_address
type: string
source: lan_mac_address_request_2 DATA01-06
- id: projector_name
type: string
source: lan_projector_name_request
- id: lens_operation_status
type: bitmask
description: bit0=lens memory, bit1=zoom, bit2=focus, bit3=lens shift H, bit4=lens shift V (0=stop,1=operating)
source: lens_information_request DATA01
Variables
- id: volume
type: integer
description: Sound volume level
read: gain_parameter_request_3 (name=05h)
write: volume_adjust
- id: brightness
type: integer
description: Picture brightness
read: gain_parameter_request_3 (name=00h)
write: picture_adjust (target=00h)
- id: contrast
type: integer
read: gain_parameter_request_3 (name=01h)
write: picture_adjust (target=01h)
- id: color
type: integer
read: gain_parameter_request_3 (name=02h)
write: picture_adjust (target=02h)
- id: hue
type: integer
read: gain_parameter_request_3 (name=03h)
write: picture_adjust (target=03h)
- id: sharpness
type: integer
read: gain_parameter_request_3 (name=04h)
write: picture_adjust (target=04h)
- id: lamp_light_adjust
type: integer
read: gain_parameter_request_3 (name=96h)
write: other_adjust_lamp_light
Events
# UNRESOLVED: source does not document unsolicited notifications; all responses are to commands.
Macros
# UNRESOLVED: no multi-step sequences described in source.
Safety
confirmation_required_for:
- power_off # projector locks out commands during power-off cooling cycle
interlocks:
- "During POWER ON, no other command is accepted."
- "During POWER OFF (including cooling time), no other command is accepted."
- "Picture/sound/onscreen mute auto-clear on input terminal switch or video signal switch."
- "Error DATA09 bit1: interlock switch open (portrait cover side)."
# UNRESOLVED: no power-on sequencing voltage/current specs stated in source.
Notes
- Command frame is binary hex:
[CmdHi] [CmdLo] 00h 00h [LEN] [DATA...] [CKS]. The final byte is a checksum = low-order one byte of the sum of all preceding bytes. Example:20h 81h 01h 60h 01h 00hsums to 103h → checksum 03h. - Success responses set the high bit of the leading byte (20h/21h/22h/23h); error responses use A0h/A1h/A2h/A3h and carry ERR1/ERR2 error codes (see source §2.4). Notable error codes: 02h 0Dh = "command cannot be accepted because the power is off"; 02h 0Fh = "no authority for the operation"; 00h 01h = "command not supported by the model in use".
- Usage-time fields update at 1-minute intervals though stored in 1-second units.
- Lens drive plus/minus continuous (7Fh/81h) must be stopped explicitly by sending 00h; same command can be re-issued during drive to continue motion.
- Serial: RS-232C cross cable on PC CONTROL (D-SUB 9P). LAN: TCP port 7142, 10/100 Mbps auto-switchable wired (IEEE 802.3/802.3u) or optional wireless LAN unit.
- Several DATA fields reference a source Appendix ("Supplementary Information by Command") not included in this refined extract — input terminal values, aspect values, eco mode values, sub-input values, and base model type codes are defined there.
Provenance
source_domains:
- sharpdisplays.eu
source_urls:
- https://www.sharpdisplays.eu/p/download/cp/Products/Projectors/Shared/CommandLists/NEC-ExternalControlManual-english.pdf
retrieved_at: 2026-06-16T11:13:00.289Z
last_checked_at: 2026-06-19T07:49:46.757Z
Verification Summary
verdict: verified
checked_at: 2026-06-19T07:49:46.757Z
matched_actions: 53
action_count: 53
confidence: medium
summary: "All 53 spec commands match source RS-232/TCP protocol documentation with exact hex opcodes. Transport parameters (115200 baud, port 7142) confirmed. Complete coverage. (9 unresolved item(s) noted in Known Gaps.)"
Known Gaps
- "firmware version compatibility, exact model code (ID2) value, flow control mode, and wireless LAN unit specifics not stated in source."
- "RTS/CTS pins present in pinout but flow control mode not explicitly stated"
- "source does not document unsolicited notifications; all responses are to commands."
- "no multi-step sequences described in source."
- "no power-on sequencing voltage/current specs stated in source."
- "firmware version compatibility range not stated."
- "model code (ID2) value for Xp M401H W not stated."
- "flow_control mode (RTS/CTS wiring present but enablement not stated)."
- "Appendix \"Supplementary Information by Command\" not present in source extract — several enum value tables undefined."
From the AI4AV catalog (https://ai4av.net) · ODbL-1.0