Brand: acer
Category: Other
Document Type: Manual
Language: EN
Manual for H7550ST/E155S/HE-815ST/H1P1403/H7550STz/H7550BD/E155D/HE-815J/H1P1406/H7550BDz
Uploaded: April 20, 2026, 7:55 p.m.
Manual Publish Date: 2014-11-01
Warranty Information
Refer to Acer's marketing documentation for warranty information.
- Turning the product off before cleaning: Unplug from wall outlet. Use a damp cloth for cleaning.
- Caution for plug as disconnecting device: Install power supply unit before connecting power cord. Unplug power cord before removing power supply unit. Disconnect power from system by unplugging all power cords if multiple sources exist.
- Caution for Accessibility: Ensure power outlet is easily accessible. Unplug power cord from electrical outlet when needed.
- Warnings: Do not use near water. Do not place on unstable surfaces. Ensure ventilation openings are not blocked. Do not place near heat sources. Do not insert objects into slots. Never spill liquid. Avoid vibrating surfaces.
- Using electrical power: Operate from indicated power type. Do not allow anything to rest on power cord. Do not overload outlets. Use grounded outlets.
- Product servicing: Refer servicing to qualified personnel. Unplug before servicing if cord is damaged, liquid spilled, exposed to rain/water, dropped, case damaged, or operating abnormally.
- Additional safety information: Do not look into lens when lamp is on. Turn on projector first, then signal sources. Avoid certain environments (poor ventilation, high temps, dust, smoke, fire alarms, high altitude). Unplug immediately if smoke, strange noise, or odor.
Troubleshooting and error codes
| # | Function | Description |
|---|---|---|
| 1 | LAMP | Lamp Indicator LED. |
| 2 | POWER indicator LED | Refer to the "Turning the Projector On/Off" section. |
| 3 | Keystone | Adjusts image distortion caused by tilting projection (±40 degrees). |
| 4 | RESYNC | Automatically synchronizes the projector to the input source. |
| 5 | MENU | Launches the Onscreen Display (OSD) menu, returns to the previous step for the OSD menu operation or exits the OSD menu. |
| 6 | Power key | Refer to the "Turning the Projector On/Off" section. |
| 7 | TEMP | Temp Indicator LED. |
| 8 | SOURCE | Chooses RGB, component video, S-Video, composite video, HDMI (MHL) or HDTV source. |
| 9 | Four directional selection keys | Selects items or makes adjustments to your selection |
| 10 | MODE | Chooses a display mode. |