Belcat OPUS-4PH User manual

- The jack should be pluged for proper Preamp working.
(TUNER will works regardless pluging jack)
- There is no output sound, please check if tuner or mute is turned on.
- When LCD screen is dim or no display, please check battery life.
- To prevent battery loss, please unplug jack when preamp is not in use.
- Do not disassemble for repair.
Return to your dealer for service or repair.
- Do not use too much force when operating the control.
3 4
12
Functions
OPUS-4PH PREAMP USER’S MANUAL
123
5 6 7
1. Bass
2. Middle
3. Treble
4. Presence
5. Low Batt.
6. Phase Button
7. Volume Knob
8. Battery Box
4Band EQ with Phase
8
Specification Caution
4
1. Bass EQ TONE CONTROL (for bass tones)
2. Middle EQ TONE CONTROL (for middle tones)
3. Treble EQ TONE CONTROL (for high tones)
4. Presence EQ TONE CONTROL (for very high tones)
The BASS, MIDDLE, TREBLE, and PRESENCE controls are a 4-band equalizer
for controlling tone . The BASS, TREBLE and PRESENCE tone controls are
normal boost / cut shelving controls . The MIDDLE (midrange) tone control is
a normal boost / cut tone filter. The center detent on these tone controls yields
a flat tone response. “+12” boosts the tone; “-12” cuts the tone.
5. Low Batt. (Low Battery LED Light)
The LED will light when the battery has lost power. Replace the
battery when this light is on.
This LED light will flash when a cable is connected to the output
jack of the pickup system. This shows the battery is good.
6. Phase
7. Volume Knob
The VOLUME controls the output volume. Turned fully counter-clockwise it is
completely OFF. Turned fully clockwise it is LOUD!
8. Battery
A 9-volt battery powers the OPUS-4PH preamp. Before connecting the
instrument to an amplifier or mixer please check that a fully charged 9-volt
battery is connected.
Features : 4Band EQ with Phase
Input Impedance : 20MΩ
Frequency Response : 20Hz~20KHz
Control Range :
Bass :【±12dB at 80Hz】
Middle :【±12dB at 800Hz】
Treble :【±12dB at 3KHz】
Presence :【±12dB at 15KHz】
Battery Life : Over 700Hours
Power Supply : 9V Alkaline Battery
Low Battery Check LED
Function : Phase S/W for Anti Feedback
Pick-up : OMEGA-II (Piezo cable pick-up)
Output Jack : 6.35mm (1/4”)
Dimension : W 58mm X H 96 mm
(2.3” X 3.8”)

INSTALLATION MANUAL
1. Electric Drill
2. Drill Bit
(2.3mm or 3mm and 12mm )
3. Phillips Screwdriver
4. Router and Grinder
(cutting-edge 3mm)
5. Round File
6. Masking Tape
Masking
apeT
1. Preamp
3. Pick-Up
4. Clip
7. Fix wire with clip.
5. Screw
1. Contents
2. Tool 2.Drilling hole for pick-up
1. Cut out the hole with template
Cutting
Template
1) When there is no sound or sound is stopped,
- Check guitar cable, amp or Mixer
- Check if there is batter or not. When it happens noise or distortion,
please exchange battery.
- Check if the pickup and battery connector is connected correctly
or not.
- Check if out put jack is connected correctly.
2) When there is hum-noise,
- Check the pickup is connected well or not.
- Check if the connectors are connected to correct position well
or not.
3) Some causes of the balance problem
- When the bottom of saddle or the groove of saddle is not flat.
- When saddle is installed to the groove of saddle loosly.
- When the connection is not good between the bottom of saddle
and the groove of saddle.
- When Saddle is very short
- When there is grounds on the groove of saddle.
- When Saddle is declined toward front or back.
- When the top of guitar is bended.
- When the pickup is installed to only a part of the groove of saddle.
Solution
Pick-up
Wire
Clip
EQ Out put jack
Cable
Out put
Jack
(back page)
Preamp
Masking
apeT
12mm
3. Insert EQ and battery box into hole of guitar.
4. Fasten screws properly.
5. Put plugs
into jacks.
6.Installing the pick-up
Pick-up
wire
Out put Jack
2. Output Jack