Summary

Projector control spec for the Sharp/NEC UN552 (BDT140013 command reference, Rev 7.1). Covers RS-232C serial control and wired/wireless LAN control via TCP port 7142 using a binary hex-frame protocol with checksums. Includes power, input switching, mute, picture/volume/aspect/lens adjustment, shutter, freeze, eco mode, edge blending, PIP/PbP, and a large set of status queries.

Transport

protocols:
  - serial
  - tcp
serial:
  baud_rate: 115200  # source lists 115200/38400/19200/9600/4800 bps; 115200 is the highest documented rate
  data_bits: 8
  parity: none
  stop_bits: 1
  flow_control: none  # UNRESOLVED: flow control not stated in source; "Full duplex" communication mode 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 status request commands return values
  - levelable      # inferred: PICTURE ADJUST / VOLUME ADJUST / LAMP ADJUST present

Actions

# Binary hex-frame protocol. Each command's literal bytes are shown verbatim from source.
# Frame layout: <op> <cmd> 00h 00h <LEN> <DATA...> <CKS>. CKS = low byte of sum of all preceding bytes.
# Parameterized commands show <DATAxx> placeholders. ID1/ID2 inserted by responder frame only.

- id: error_status_request_009
  label: "009. ERROR STATUS REQUEST"
  kind: query
  command: "00h 88h 00h 00h 00h 88h"
  params: []

- id: power_on_015
  label: "015. POWER ON"
  kind: action
  command: "02h 00h 00h 00h 00h 02h"
  params: []

- id: power_off_016
  label: "016. POWER OFF"
  kind: action
  command: "02h 01h 00h 00h 00h 03h"
  params: []

- id: input_sw_change_018
  label: "018. INPUT SW CHANGE"
  kind: action
  command: "02h 03h 00h 00h 02h 01h <DATA01> <CKS>"
  params:
    - name: data01
      type: integer
      description: "Input terminal (see Appendix 'Supplementary Information by Command'; example 06h = Video)"

- id: picture_mute_on_020
  label: "020. PICTURE MUTE ON"
  kind: action
  command: "02h 10h 00h 00h 00h 12h"
  params: []

- id: picture_mute_off_021
  label: "021. PICTURE MUTE OFF"
  kind: action
  command: "02h 11h 00h 00h 00h 13h"
  params: []

- id: sound_mute_on_022
  label: "022. SOUND MUTE ON"
  kind: action
  command: "02h 12h 00h 00h 00h 14h"
  params: []

- id: sound_mute_off_023
  label: "023. SOUND MUTE OFF"
  kind: action
  command: "02h 13h 00h 00h 00h 15h"
  params: []

- id: onscreen_mute_on_024
  label: "024. ONSCREEN MUTE ON"
  kind: action
  command: "02h 14h 00h 00h 00h 16h"
  params: []

- id: onscreen_mute_off_025
  label: "025. ONSCREEN MUTE OFF"
  kind: action
  command: "02h 15h 00h 00h 00h 17h"
  params: []

- id: picture_adjust_030_1
  label: "030-1. PICTURE ADJUST"
  kind: action
  command: "03h 10h 00h 00h 05h <DATA01> FFh <DATA02> <DATA03> <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: "030-2. VOLUME ADJUST"
  kind: action
  command: "03h 10h 00h 00h 05h 05h 00h <DATA01> <DATA02> <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: "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 (see Appendix 'Supplementary Information by Command')"

- id: other_adjust_030_15
  label: "030-15. OTHER ADJUST"
  kind: action
  command: "03h 10h 00h 00h 05h <DATA01> <DATA02> <DATA03> <DATA04> <DATA05> <CKS>"
  params:
    - name: data01
      type: integer
      description: "Adjustment target: 96h=LAMP ADJUST / LIGHT ADJUST"
    - name: data02
      type: integer
      description: "Sub-target (FFh documented)"
    - 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: "037. INFORMATION REQUEST"
  kind: query
  command: "03h 8Ah 00h 00h 00h 8Dh"
  params: []

- id: filter_usage_information_request_037_3
  label: "037-3. FILTER USAGE INFORMATION REQUEST"
  kind: query
  command: "03h 95h 00h 00h 00h 98h"
  params: []

- id: lamp_information_request_037_4
  label: "037-4. LAMP INFORMATION REQUEST 3"
  kind: query
  command: "03h 96h 00h 00h 02h <DATA01> <DATA02> <CKS>"
  params:
    - name: data01
      type: integer
      description: "Lamp: 00h=Lamp 1, 01h=Lamp 2 (two-lamp models only)"
    - name: data02
      type: integer
      description: "Content: 01h=Lamp usage time (seconds), 04h=Lamp remaining life (%)"

- id: carbon_savings_information_request_037_6
  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"

- id: remote_key_code_050
  label: "050. REMOTE KEY CODE"
  kind: action
  command: "02h 0Fh 00h 00h 02h <DATA01> <DATA02> <CKS>"
  params:
    - name: data01
      type: integer
      description: "Key code low byte (WORD type). Examples: 02h=POWER ON, 05h=AUTO, 06h=MENU, 4Bh=COMPUTER1, 84h=VOLUME UP, EEh=LAMP MODE/ECO"
    - name: data02
      type: integer
      description: "Key code high byte (00h for all documented codes)"

- id: shutter_close_051
  label: "051. SHUTTER CLOSE"
  kind: action
  command: "02h 16h 00h 00h 00h 18h"
  params: []

- id: shutter_open_052
  label: "052. SHUTTER OPEN"
  kind: action
  command: "02h 17h 00h 00h 00h 19h"
  params: []

- id: lens_control_053
  label: "053. LENS CONTROL"
  kind: action
  command: "02h 18h 00h 00h 02h <DATA01> <DATA02> <CKS>"
  params:
    - name: data01
      type: integer
      description: "Lens target (06h=Periphery Focus documented)"
    - name: data02
      type: integer
      description: "Drive content: 00h=Stop, 01h/02h/03h=plus 1s/0.5s/0.25s, 7Fh=plus continuous, 81h=minus continuous, FDh/FEh/FFh=minus 0.25s/0.5s/1s"

- id: lens_control_request_053_1
  label: "053-1. LENS CONTROL REQUEST"
  kind: query
  command: "02h 1Ch 00h 00h 02h <DATA01> 00h <CKS>"
  params:
    - name: data01
      type: integer
      description: "Lens target (same values as 053 LENS CONTROL)"

- id: lens_control_2_053_2
  label: "053-2. LENS CONTROL 2"
  kind: action
  command: "02h 1Dh 00h 00h 04h <DATA01> <DATA02> <DATA03> <DATA04> <CKS>"
  params:
    - name: data01
      type: integer
      description: "Lens target (FFh=Stop)"
    - 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: "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_053_4
  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 (operates on profile set via 053-10)"

- id: lens_memory_option_request_053_5
  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_053_6
  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_053_7
  label: "053-7. LENS INFORMATION REQUEST"
  kind: query
  command: "02h 22h 00h 00h 01h 00h 25h"
  params: []

- id: lens_profile_set_053_10
  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_053_11
  label: "053-11. LENS PROFILE REQUEST"
  kind: query
  command: "02h 28h 00h 00h 00h 2Ah"
  params: []

- id: gain_parameter_request_3_060_1
  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"

- id: setting_request_078_1
  label: "078-1. SETTING REQUEST"
  kind: query
  command: "00h 85h 00h 00h 01h 00h 86h"
  params: []

- id: running_status_request_078_2
  label: "078-2. RUNNING STATUS REQUEST"
  kind: query
  command: "00h 85h 00h 00h 01h 01h 87h"
  params: []

- id: input_status_request_078_3
  label: "078-3. INPUT STATUS REQUEST"
  kind: query
  command: "00h 85h 00h 00h 01h 02h 88h"
  params: []

- id: mute_status_request_078_4
  label: "078-4. MUTE STATUS REQUEST"
  kind: query
  command: "00h 85h 00h 00h 01h 03h 89h"
  params: []

- id: model_name_request_078_5
  label: "078-5. MODEL NAME REQUEST"
  kind: query
  command: "00h 85h 00h 00h 01h 04h 8Ah"
  params: []

- id: cover_status_request_078_6
  label: "078-6. COVER STATUS REQUEST"
  kind: query
  command: "00h 85h 00h 00h 01h 05h 8Bh"
  params: []

- id: freeze_control_079
  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_084
  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_097_8
  label: "097-8. ECO MODE REQUEST"
  kind: query
  command: "03h B0h 00h 00h 01h 07h BBh"
  params: []

- id: lan_projector_name_request_097_45
  label: "097-45. LAN PROJECTOR NAME REQUEST"
  kind: query
  command: "03h B0h 00h 00h 01h 2Ch E0h"
  params: []

- id: lan_mac_address_status_request_097_155
  label: "097-155. LAN MAC ADDRESS STATUS REQUEST2"
  kind: query
  command: "03h B0h 00h 00h 02h 9Ah 00h 4Fh"
  params: []

- id: pip_picture_by_picture_request_097_198
  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_097_243_1
  label: "097-243-1. EDGE BLENDING MODE REQUEST"
  kind: query
  command: "03h B0h 00h 00h 02h DFh 00h 94h"
  params: []

- id: eco_mode_set_098_8
  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 (see Appendix 'Supplementary Information by Command')"

- id: lan_projector_name_set_098_45
  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), placed in DATA01-DATA16"

- id: pip_picture_by_picture_set_098_198
  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=TL, 01h=TR, 02h=BL, 03h=BR; SUB INPUT values per Appendix)"

- id: edge_blending_mode_set_098_243_1
  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_305_1
  label: "305-1. BASE MODEL TYPE REQUEST"
  kind: query
  command: "00h BFh 00h 00h 01h 00h C0h"
  params: []

- id: serial_number_request_305_2
  label: "305-2. SERIAL NUMBER REQUEST"
  kind: query
  command: "00h BFh 00h 00h 02h 01h 06h C8h"
  params: []

- id: basic_information_request_305_3
  label: "305-3. BASIC INFORMATION REQUEST"
  kind: query
  command: "00h BFh 00h 00h 01h 02h C2h"
  params: []

- id: audio_select_set_319_10
  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 (see Appendix 'Supplementary Information by Command')"
    - name: data02
      type: integer
      description: "Setting value: 00h=terminal specified in DATA01, 01h=BNC, 02h=COMPUTER"

Feedbacks

# Response frame format: A<x>h <cmd> <ID1> <ID2> 02h <ERR1> <ERR2> <CKS> (error) or 2<x>h/2xh... (success)
# Success frames carry DATA echoes; error frames carry ERR1/ERR2 per error code list.

- id: command_ack
  type: enum
  values: [success, error]
  description: "Success response has no error bytes; error response carries ERR1/ERR2 codes"

- id: error_status
  type: bitmask
  description: "12-byte error bitmask returned by 009. ERROR STATUS REQUEST (cover, fan, temp, lamp, mirror cover, foreign matter, ballast, iris, lens, interlock, system errors)"

- id: running_status
  type: enum
  values: [standby_sleep, power_on, cooling, standby_error, standby_power_saving, network_standby]
  description: "DATA06 of 078-2 RUNNING STATUS REQUEST"

- id: power_status
  type: enum
  values: [standby, power_on]
  description: "DATA03 of 078-2 RUNNING STATUS REQUEST"

- id: mute_status
  type: object
  description: "078-4 MUTE STATUS REQUEST returns picture/sound/onscreen/forced-onscreen mute and OSD display flags"

- id: cover_status
  type: enum
  values: [normal_open, closed]
  description: "078-6 COVER STATUS REQUEST (mirror/lens cover)"

- id: lens_operation_status
  type: bitmask
  description: "053-7 LENS INFORMATION REQUEST: bits for lens memory, zoom, focus, lens shift H/V (stop/during operation)"

Variables

- id: brightness
  type: integer
  description: "PICTURE/BRIGHTNESS gain; readable via 060-1 (DATA01=00h), writable via 030-1"

- id: contrast
  type: integer
  description: "PICTURE/CONTRAST gain; readable via 060-1 (DATA01=01h), writable via 030-1"

- id: color
  type: integer
  description: "PICTURE/COLOR gain; readable via 060-1 (DATA01=02h), writable via 030-1"

- id: hue
  type: integer
  description: "PICTURE/HUE gain; readable via 060-1 (DATA01=03h), writable via 030-1"

- id: sharpness
  type: integer
  description: "PICTURE/SHARPNESS gain; readable via 060-1 (DATA01=04h), writable via 030-1"

- id: volume
  type: integer
  description: "VOLUME; readable via 060-1 (DATA01=05h), writable via 030-2"

- id: lamp_light_adjust
  type: integer
  description: "LAMP/LIGHT ADJUST; readable via 060-1 (DATA01=96h), writable via 030-15"

- id: lamp_usage_time_seconds
  type: integer
  description: "Returned by 037 and 037-4 (DATA01=00h, DATA02=01h); updated at 1-minute intervals"

- id: lamp_remaining_life_percent
  type: integer
  description: "Returned by 037-4 (DATA01=00h, DATA02=04h); negative if replacement deadline exceeded"

- id: filter_usage_time_seconds
  type: integer
  description: "Returned by 037-3 DATA01-04"

- id: filter_alarm_start_time_seconds
  type: integer
  description: "Returned by 037-3 DATA05-08; -1 if undefined"

- id: eco_mode
  type: integer
  description: "Eco/Light/Lamp mode; set via 098-8, read via 097-8"

- id: projector_name
  type: string
  description: "Up to 16 bytes; set via 098-45, read via 097-45"

- id: mac_address
  type: string
  description: "6-byte MAC; read via 097-155"

- id: lens_profile
  type: enum
  values: [profile_1, profile_2]
  description: "Reference lens memory profile; set via 053-10, read via 053-11"

- id: edge_blending_mode
  type: enum
  values: [off, on]
  description: "Set via 098-243-1, read via 097-243-1"

Events

# Source documents no unsolicited notifications. Device only responds to commands.
# UNRESOLVED: no event/notification mechanism described in source.

Macros

# UNRESOLVED: source documents no named multi-step sequences.

Safety

confirmation_required_for:
  - power_off  # source: "While this command is turning off the power (including the cooling time), no other command can be accepted."
  - power_on   # source: "While this command is turning on the power, no other command can be accepted."
interlocks:
  - "Power-off includes a cooling period during which the projector rejects all other commands."
  - "Error code 02h 0Dh: command rejected because power is off."
  - "Error code 02h 0Fh: no authority for the operation."
  - "053 LENS CONTROL: after issuing 7Fh (plus continuous) or 81h (minus continuous), must send 00h to stop the lens."
# UNRESOLVED: no explicit power-on sequencing procedure stated in source beyond the cooling/lockout notes above.

Notes

  • Manual revision: BDT140013 Rev 7.1.
  • Checksum rule (CKS): sum all preceding bytes, take the low-order 8 bits. Example: 20h+81h+01h+60h+01h+00h = 103h → CKS=03h.
  • Frame direction prefix bytes: 0xh/1xh/2xh/3xh opcodes; success responses echo with 2xh, error responses use Axh. The literal command bytes shown in Actions are the PC→projector form (no ID1/ID2); the responder injects ID1 (control ID) and ID2 (model code) in replies.
  • Serial cable must be a cross cable wired to the PC CONTROL D-SUB 9P port per the documented pin table (pin 2 RxD↔TxD, pin 3 TxD↔RxD, pin 7 RTS↔CTS, pin 8 CTS↔RTS, pin 5 GND↔GND).
  • LAN cable type (straight vs cross) is left to the network administrator per source.
  • Error code table (ERR1/ERR2) documents 26 combinations covering unrecognized commands, unsupported features, invalid values, memory errors, forced mute, viewer errors, no-signal, power-off rejections, authority failures, and gain/adjustment failures.
  • 050 REMOTE KEY CODE list documents 28 named keys (POWER ON/OFF, AUTO, MENU, UP/DOWN/LEFT/RIGHT, ENTER, EXIT, HELP, MAGNIFY UP/DOWN, MUTE, PICTURE, COMPUTER1/2, VIDEO1, S-VIDEO1, VOLUME UP/DOWN, FREEZE, ASPECT, SOURCE, LAMP MODE/ECO).

Spec ready. 53 actions, full hex payloads verbatim, both transport modes, no fabricated values. UNRESOLVED markers on all gaps.

## 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: 2026-06-19T01:22:50.034Z
last_checked_at: 2026-06-19T07:43:56.548Z

Verification Summary

verdict: verified
checked_at: 2026-06-19T07:43:56.548Z
matched_actions: 53
action_count: 53
confidence: medium
summary: "All 53 spec actions match source hex sequences verbatim; transport (serial 115200 baud, TCP port 7142) verified in source; bidirectional coverage complete. (11 unresolved item(s) noted in Known Gaps.)"

Known Gaps

- "model-name string returned by device at runtime not stated; UN552 used per task input. Appendix \"Supplementary Information by Command\" (input terminal values, base model types, eco mode values, sub input values, aspect values) is referenced but not present in the refined source — many enum tables are therefore incomplete."
- "flow control not stated in source; \"Full duplex\" communication mode stated"
- "no event/notification mechanism described in source."
- "source documents no named multi-step sequences."
- "no explicit power-on sequencing procedure stated in source beyond the cooling/lockout notes above."
- "flow_control not stated (only \"Full duplex\" communication mode)."
- "Appendix \"Supplementary Information by Command\" referenced for input terminal values, base model types, eco mode values, sub input values, aspect values, and selection signal types — not present in refined source; several enum params are therefore only partially documented."
- "firmware version compatibility not stated in source."
- "protocol version number not stated in source."
- "ID2 model code value for UN552 not stated in source."
- "no power-on sequence / warm-up delay timing stated (only that no other command is accepted during power-on transition)."

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