Hamilton/Buhl Mark 4 Opus User manual

SING-A-LONG CD PLAYER
USER MANUAL
Kids CD30
HAMILTON BUHL
80 LITTLE FALLS
FAIRFIELD, NJ 07004
PHONE: [phone]
WWW.HAMILTONBUHL.COM
PLEASE READ THIS USER MANUAL COMPLETELY BEFORE OPERATING THIS UNIT
AND RETAIN THIS BOOKLET FOR FUTURE REFERENCE.

- 1 -
WARNING
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF
The lightning flash and
arrow head within the
triangle is a warning sign
alerting you of “dangerous
voltage” inside the product.
ELECTRIC SHOCK DO NOT
REMOVE COVER (ON BACK), NO
USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
The exclamation point
within the triangle is a
warning sign alerting you
of important instructions
accompanying the product.
The Caution Marking is located at the bottom enclosure of the apparatus.
IMPORTANT SAFETY INSTRUCTIONS
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT USE THIS PLUG WITH AN EXTEN-
SION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY
INSERTED TO PREVENT BLADE EXPOSURE. TO PREVENT FIRE OR SHOCK
HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Cleaning-Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners
or aerosol cleaners. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s
instructions.
8. Do not place this product on an unstable cart, stand, tripod, bracket, or
table. The product may fall, causing serious injury to a child or adult, and
serious damage to the product. Use only with a cart, stand, tripod, bracket,
or table recommended by the manufacturer, or sold with the product. Any
mounting of the product should follow the manufacturer’s instructions, and
should use a mounting accessory recommended by the manufacturer. A
product and cart combination should be moved with care-quick stops, excessive force and
uneven surfaces may cause the product and cart combination to overturn.
9. Do not install near any heat sources such as radiators, heat registers, stoves, or other
apparatus (including amplifiers) that product heat.
10. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug
has two blades with one wider than the other. A grounding type plug has two blades and a
third grounding prong. The wide blade or the third prong is provided for your safety. If the
provided plug does not fit into your outlet, consult an electrician for replacement of the
obsolete outlet.
11. Protect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles, and the point where they exit from the apparatus.
12. Only use attachments/accessories specified by the manufacturer.
13. Unplug this apparatus during lightning storms or when unused for a long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus
has been damaged in any way, such as power-supply cord or plug is damaged, liquid has
been spilled or objects have fallen into the apparatus, the apparatus has been exposed to
rain or moisture, does not operate normally, or has been dropped.

- 2 -
This symbol indicates that this product incorporates double
insulation between hazardous mains voltage and user
accessible parts.
SAVE THESE INSTRUCTION S
CAUTION
CLASS 11LASER PPRODUCT
CLASS 1 LASER PRODUCT
APPAREIL LASER DE CLASSE 1
PRODUCTO LASER DE CLASE 1
CAUTION INVIS IBLE LASER
RAD IAT IO N W HEN OPEN AND
INTERLO CKS
DEFEATED
AVOID EXPOSURE TO BEAM.
This product contains alow power laser device.
Follow the advice below for safe operations.
15. This appliance shall not be exposed to dripping or splashing water and that no object filled with
liquids such as vases shall be placed on the apparatus.
16. Do not overload wall outlet. Use only power source as indicated.
17. Use replacement part as specified by the manufacturer.
18. Upon completion of any service or repairs to this product, ask the service technician to
perform safety checks.
19. Power Sources - This product should be operated only from the type of power source
indicated on the marking label. If you are not sure of the type of power supply to your home,
consult your product dealer or local power company. For products intended to operate from
battery power, or other sources, refer to the operating instruction.
20. Object and Liquid Entry - Never push objects of any kind into this product through openings as
they may touch dangerous voltage points or short-out parts that could result in a fire or electric
shock. Never spill liquid of any kind on the product.
21. Damage Requiring Service - Unplug this product from the wall outlet and refer servicing to
qualified service personnel under the following conditions:
a) When the power-supply cord or plug is damaged,
b) If liquid has been spilled, or objects have fallen into the product, c) If the product has been
exposed to rain or water,
d) If the product does not operate normally by following the operating instructions. Adjust only
those controls that are covered by the operating instructions as an improper
adjustment of other controls may result in damage and will often require extensive work by
a qualified technician to restore the product to its normal operation.
e) If the product has been dropped or damaged in any way, and
f ) When the product exhibits a distinct change in performance - this indicates a need for
service.
ON PROTECTION AGAINST LASER ENERGY EXPOSURE
• As the laser beam used in this compact disc player is harmful to the eyes, do not attempt to
disassemble the casing.
• Stop operation immediately if any liquid or solid object should fall into the cabinet.
• Do not touch the lens or poke at it. If you do, you may damage the lens and the player may not
operate properly.

- 3 -
COMPLIANCE WITH FCC REGULATIONS
PROTECT YOUR FURNITURE!!
• Do not put anything in the safety slot. If you do, the laser diode will be ON when the CD door is
still open.
• If the unit is not to be used for a long period of time, make sure that all power sources are
disconnected from the unit. Remove all batteries from the battery compartment, and unplug the
AC cord from the wall outlet. Make it a practice to remove the AC cord by grasp ing the main body
and not by pulling the cord.
• This unit employs a laser. The use of controls or adjustment or performance of procedures
other than those specified here may result in exposure to hazardous radiation.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause
undesired operation.
NOTE : This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates
uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guaran-
tee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
- Consult the dealer or an experienced radio/TV technician for help.
WARNING: Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This system is equipped with non-skid rubber ‘feet’ to prevent the product from moving when you
operate the controls. These ‘feet’ are made from non-migrating rubber material specially formulated
to avoid leaving any marks or stains on your furniture. However certain types of oil based furniture
polishes, wood preservatives, or cleaning sprays may cause the rubber ‘feet’ to soften, and leave
marks or a rubber residue on the furniture.
To prevent any damage to your furniture we strongly recommend that you purchase small self-
adhesive felt pads, available at hardware stores and home improvement centers everywhere, and
apply these pads to the bottom of the rubber ‘feet’ before you place the product on fine wooden
furniture.
Should any trouble occur, remove the power source and refer servicing to qualified personnel.

- 4 -
LOCATION OF CONTROLS
1
2
3
4
5
6
7
8
FRON
PHONE MIC
TVIEW
TOP VIEW
REAR VIEW
9
10
11
12
13
14
15
16
17
18
19
20
21
22
2
1. Carrying Handle 13. Repeat Indicator
2. FM Antenna 14. Power Indicator
3. CD Door 15. Headphone Jack
4. Function Selector 16. LED Display
5 Volume Control 17. Skip Backward Button
6 Dial Scale 18. Play/Pause Button
7 Band Selector 19. Skip Forward Button
8 Tuning Knob 20. Play/Pause Indicator
9 Program Button 21. FM Stereo Indicator
10 Stop Button 22. MIC Jack
11. Repeat Button 23. AC Power Socket
12. Program Indicator 24. Battery Compartment

- 5 -
AC Outlet
Polarized AC Plug
RADIO RECEPTION
POWER SOURCE
The unip operates on 8 X ‘C' size (UM-2) batteries (Not included) or from AC120V ~ 60Hz line
power.
A. BATTERY OPERATION
For best performance and longer operating time, we
recommend the use of alkaline batteries.
1. Remove the Battery Door.
2. Following the polarity (+ and -) diagram as shown inside
the battery compartment, insert 8 ‘C’ size (UM-2) batteries.
3. Replace the Battery Door.
BATTERY WARNING
1. Be sure that the batteries are installed correctly. Wrong polarity may damage the unit.
2. (a) Do not mix old and new batteries.
(b) Do not mix alkaline, standard (carbon-zinc) or rechargeable (nickel-cadmium) batteries.
3. If the unit is not to be used for an extended period of time, remove the batteries. Old or leaking
batteries can cause damage to the unit and may void the warranty.
4. Do not dispose of batteries in fire, batteries may explode or leak.
B. AC POWER CONNECTION
1. Insert one end of power cord to the AC Socket on the back of the unip
2. Insert the power cord to the AC Socket (#23).
3. Connect the power cord to AC power source.
4. When the unit is operated from AC power source, the
internal battery source will automatically be disconnected.
CAUTION:
TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE
OF PLUG TO WIDE SLOT. FULLY INSERT.
1. Set the Function Selector (# 4) to "RADIO".
2. Set the Band Selector (# 7) to "AM" or "FM" for the desired radio band.
3. Turn the Tuning Knob (# 8) to select the desired radio station.
4. Adjust the Volume Control (# 5) to obtain the desired sound level from the Built-in Speakers.
5. To turn the Radio off, set the Function Selector (# 4) to the “OFF” position.
TIPS FOR BEST RADIO RECEPTION
1. To insure maximum FM tuner reception, the Telescopic Antenna (#2 ) should be fully
extended and rotated to obtain the best possible station reception.
2. The AM antenna is built into the unit. When tuning in AM reception, be sure to place the unit in
a vertical position. To insure best AM reception, try repositioning the unit until the best station
reception is obtained.

CD PLAYER OPERATION
Note: This CD player will not only play commercial CDs, but also self-compiled CD-R/RW discs.
Do not attempt to play CD-ROM, CDI, VCD, DVD or computer CDs.
Notes on CD-R/RW Discs
• Because of non-standardized format definition/production of CD-R/RW, playback quality and
performance are not guaranteed.
• Manufacturer is not responsible for the playability of CD-R/RW due to recording conditions
such as PC performance, writing software, media ability, etc.
• Do not attach a label or seal to either side of the CD-R/RW disc. It may cause a malfunction.
PLAYING A CD
1. Open the CD Door (# 3) by pressing down where the OPEN/CLOSE is indicated on the CD
Door (# 3).
2. Carefully place an audio CD with its label side upward in the CD compartment and close the
CD Door by pressing on the CD Door (# 3) where OPEN/CLOSE is indicated on the CD Door
(# 3).
3. Set the Function Selector (# 4) to the "CD" position. The POWER Indicator (# 14) will light. The
LED Display (# 16) will briefly display flashing “- -”and then the total number of tracks on the
CD will appear in the LED Display (# 16) after a few seconds.
4. Press the CD Play/Pause Button (#18). The Play/Pause Indicator (# 20) will light steadily
and the CD will start playing from the first track.
5. Adjust the Volume Control (# 5) to obtain the desired sound level from the Built-in Speakers.
6. To pause playback, press the CD Play/Pause Button (#18). The Play/Pause Indicator
(#20) will flash. To resume playing, press the CD Play/Pause Button (# 18) again.
7. You can choose to play your favorite track directly by pressing either the Skip Forward
Button (# 19) or Skip Backward Button (# 17). The LED Display (# 18) will indicate the
correct track number selected.
8. To locate a particular section within a track, press and hold the CD Search Forward
Button (# 19) or CD Search Backward Button (# 17) until the section is found. Release
the button to continue playing your selection.
9. To repeat a particular track, press the CD Repeat Button (#11) until the CD Repeat Indicator (#
13) flashes.
10. To repeat the entire CD, press the CD Repeat Button (#11) until the CD Repeat Indicator (#13)
light steadily.
11. To stop playing, press the CD Stop Button (#10).
12. When you wish to turn off the CD Player, set the Function Selector (# 4) to the "OFF"
position. The Power Indicator (# 14) will go off.
CD PROGRAMMED PLAY
This function allows the tracks to be played in a programmed sequence. NOTE:
Program can only be set in STOP mode.
1. In CD stop mode, press the Program Button (# 9) once. Program No. “01” will
appear and blink in the LED Display (#16).
2. Press the CD Skip Forward Button (# 19) or CD Skip Backward
Button (# 17) to select the song to be programmed. For example track 5
is selected.
3. Press the Program Button (#9) again to store selection. The LED Display (#16)
will go to “02” and blink to prompt for input.
4. Press the CD Skip Forward Button (# 19) or CD Skip Backward
button (# 17) to select the next song to be programmed and press the CD
Program Button (# 9) to store the second selection.
- 6 -
1
19
5
02
01

- 7 -
USING HEADPHONES (NOT INCLUDED)
USING MICROPHONE AND SING-ALONG FEATURE
5. You can repeat steps #2 - #4 to program up to 20 tracks. The programmed tracks will be shown
in the LED Display (#16) one by one in the programmed sequence after the 20 th selection has
been stored.
6. To check the programmed tracks, press the Program Button (#9 ) repeatedly until the last
Program No. appears and flashes in the Display and then press the Program Button (# 9) once
again. The programmed tracks will be displayed one by one in the programmed sequence.
7. Press the CD Play/Pause Button (#18) to start playing in the programmed sequence. The
Program Indicator (#14) will light steadily. To stop programmed play, press the CD Stop
Button (#10).
• After all the programmed tracks have been played the player stops but the program remains in
the memory.
• Press the Play/Pause Button (#18) to begin programmed playback again.
8. Normally all the programmed tracks will be played through once and then stop. However, you
can use the Repeat function to repeatedly play a certain track (Repeat 1) or all tracks in the
program (Repeat All). You can also tap the CD Skip Forward Button (#19) to go directly to
other tracks ahead or use CD Skip Backward Button (#17) to go back to previous track(s)
during program play.
9. To review/edit the programmed tracks during play, press the CD Stop Button (#10) and then the
CD Program Button (#9), “01” will show in the LED DISPLAY (#16) and Program Indicator
(#12) will both flash. If you do not want to change any track in the program, press CD Stop
Button (#10).
10. To edit a programmed track, use the CD Skip Forward Button (#19) or CD Skip
Backward Button (#17) to select a new track and press CD Program Button (#9) to
confirm. To skip forward, press CD Program Button (#9) until you reach the program
number of the track you want to change.
11. To cancel program play, press the CD Stop Button (#10) twice while program playback is
running or open the CD Door (#3) in stop mode. The Program Indicator (#12) will go off.
Inserting the plug of your headphones into the Stereo Headphone Jack (#15) will enable you to
listen to the CD or Radio music in private. When using headphones, the Built-in Speakers will be
disconnected.
READ THIS IMPORTANT INFORMATION BEFORE USING YOUR HEADPHONES
1. Avoid extended play at very high volume as it may impair your hearing.
2. If you experience ringing in your ears, reduce the volume or shut off your unit.
3. Do not use while driving a motorized vehicle. This is dangerous and also illegal in some states.
4. Keep the volume at a reasonable level even if your headset is an open-air type designed to
allow you to hear outside sounds. Please note excessive high volume may still block outside
sounds.
1. Plug the Dynamic microphone (Included) into the MIC jack (#22) on the front side of your unit.
Their output is mixed with playback from Radio or CD.
2. On the microphone, there is an ON/OFF switch. Ensure that you set the switch to ON
position during the usage.
3. Adjust the master Volume control to obtain the desired volume level.
4. You can start to sing-along with the music playback.

- 8 -
CARE AND MAINTENANCE
TROUBLESHOOTING GUIDE
Symptom
Noise or sound
distorted on AM or
FM broadcast
Station not tuned properly for AM
or FM.
FM: Telescopic antenna is not fully
extended.
AM: Internal antenna is not
positioned correctly
AM or FM no sound
CD player will not
play
CD skips while
playing
Intermittent sound
from CD Player
No sound from Mic
Dirty or defective disc.
Dirty pick up lens.
Player is subject to excessive
shock or vibration
Volume control is set to minimum.
Mic is off
Adjust the volume to MAX, and
then re-adjust to a comfortable
level.
Turn on the mic with the ON/OFF
switch located on the mic.
Clean or replace the defective
disc.
Use a CD-lens cleaning disc to
clean the lens.
Relocate the player away from
shock or vibration
Disc is dirty or scratched. Wipe CD with clean cloth or use
another disc.
Unit not in CD function mode.
CD is installed incorrectly.
If the CD is self-compiled, the
media used may not be compatible
with the player.
Select CD function mode. Insert
CD with label side up. Use better
quality blank media and retest.
Unit not in Tuner mode, AM or FM
band.
Volume at minimum
Slide function selector to select
AM or FM. Increase Volume
SPECIFIC A TIONS
Power Requirement: AC120V 60Hz 14W
Battery (Not included): DC1.5V ’C’ (UM2) x 8
Frequency Range: FM: 88-108MHz
AM: 530-1710KHz
Microphone: 600 Ohm Impedance w/3.5mm Dynamic microphone
1. Clean your unit with a damp (never wet) cloth. Solvent or detergent should never be used.
2. Avoid leaving your unit in direct sunlight or in hot, humid or dusty places.
3. Keep your unit away from heating appliances and sources of electrical noise such as
fluorescent lamps or motors.
4. If drop-outs or interruptions occur in the music during CD play, or if the
CD fails to play at all, its bottom surface may require cleaning. Before
playing, wipe the disc from the center outwards with a good soft cleaning
cloth.
Possible Cause Solution
Fine tune the AM or FM
broadcast station.
FM: Fully extend the FM
Telescopic antenna.
AM: Reposition the unit until the
best reception is obtained.

- 9 -

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