Sonic Alert SBS550BC — Skull Alarm Clock with Bone Crusher Manual

Overview

The Sonic Alert Skull Alarm Clock with Bone Crusher (Model SBS550BC) is a bed-shaker vibrating alarm clock designed for deep sleepers and users who are deaf or hard of hearing. It combines a loud adjustable buzzer, flashing LED skull eyes, a flashing light display, and a bed-shaker ("Bone Crusher") vibrating unit that goes under the mattress or pillow. It also includes an AUX-IN jack for playing music from an MP3 player, CD player, or radio.

Safety Warnings

• Use only the supplied AC adaptor to connect the unit.
• To prevent fire or shock hazard, do not expose this appliance to rain or moisture.
• Before connecting to mains power, confirm the power requirement on the unit (AC120V 60Hz or AC230V 50Hz) matches your outlet.
• Do not block ventilation openings with newspaper, tablecloths, curtains, etc.
• No naked flame sources (e.g. lit candles) should be placed on the unit.
• Do not expose to dripping/splashing liquids; do not place liquid-filled objects (vases, etc.) on the unit.
• Do not place in closed bookcases or racks without proper ventilation.
• The mains plug is the disconnect device — keep it unobstructed and easily accessible.
• Use only manufacturer-specified attachments/accessories.
• No user-serviceable parts inside — refer servicing to Sonic Alert.

Controls & Features

Installation

AC 9V Power Input

Attach the AC power supply to the side of the clock at AC9V IN (17), located next to the smaller VIBRATOR input (15) — do not confuse the two. The skull's eyes light up continuously once connected to power.

Bone Crusher / Vibrator

1. Attach the bed shaker jack to the back of the clock at the VIBRATOR input (15).
2. Place the Bone Crusher under the mattress (best) or under the pillow.

Battery Backup

Install one 9-volt alkaline battery under the battery cover (18) on the back of the clock. The LED display will not light during a power outage, but the clock keeps accurate time until power is restored. Replace the battery every 6–8 months for best results; remove it if the clock will be unused for an extended period, to avoid leakage.

Operation

Setting the Correct Time

1. Press and hold the Time Button (13), then press the Hour Button (11) to advance the hour, and the Minute Button (12) to advance the minutes, until correct.
2. A lit dot (2) in the upper left of the display indicates PM. No dot lit indicates AM.

Setting the Alarm Time

1. Follow the same steps as setting the time, but press the Alarm Set Button (10) instead of the Time Button.
2. Confirm the AM/PM dot (2) is correct. Release the HOUR and MIN buttons before releasing the ALARM button.

Waking to the Alarm

1. Set the Function Switch (3) to VIB, BUZZ, or VIB/BUZZ.
2. VIB drives the bed shaker only; BUZZ is sound only; VIB/BUZZ combines both.
3. Set the desired Volume (7) for the buzzer.
4. When the alarm sounds, the Flashing Light Display and the Skull LED eyes flash continuously until the alarm is stopped, in all three wake modes.

Shutting Off the Alarm

• Temporary (for today only): Press the Alarm Off button (14) once — the alarm shuts off for the day and returns tomorrow at the same time.
• Permanent: Slide the Function Switch (3) to the OFF position.

Snooze

Press the Skull Snooze button (5) to silence the alarm for 9 minutes. It will sound again after 9 minutes; repeat up to a total of 119 minutes.

Volume & Tone

Rotate the Volume Knob (7) to adjust buzzer loudness. Rotate the Tone Control Knob (9), just below the Volume Knob, to adjust tone. Tone only affects the alarm sound — it has no effect in AUX/MP3 mode.

Dimmer

The Dimmer Switch (4) sets LED display brightness to Hi or Low.

Hour Format & Power Cycle

Select the setting matching your region's power frequency, or the clock will keep incorrect time:

• USA: 12-hour / 60Hz
• Europe: 24-hour / 50Hz
• UK: 12-hour / 50Hz

Playing Music via AUX-IN

1. Plug the supplied line-in cable into the AUX-IN jack (16) on the back of the unit; connect the other end to the headphone/earphone jack of your music player (MP3 player, CD player, radio, etc. — not included).
2. Set the clock's volume knob to a comfortable level.
3. Play your music and adjust the player's own volume as needed.

Notes: The clock automatically switches to AUX mode once the line-in cable is plugged in. The Tone Knob does not function in AUX mode.

General Specifications

• Power: AC adaptor, 9V ~ 900mA
• UL-listed transformer (USA), CE-approved transformer (Europe)
• Battery backup: one 9V alkaline battery (not included)

Warranty

Sonic Alert warrants the SBS550BC against manufacturing defects in materials and workmanship for 1 year from the date of purchase. Within this period, Sonic Alert will repair or replace the unit (at their option) without charge for parts and labor. Send the unit postpaid, along with a copy of your sales receipt as proof of purchase, to: Sonic Alert Inc., 1050 E. Maple Road, Troy, MI 48083, USA.