Panasonic CY-PAD1003U User Manual

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 High level speaker input terminal (SPEAKERS 

INPUT) 

 

When connecting Head Unit without RCA output 
terminals.

 Power/protection indicator (PWR/PROTECT)
 

Lights green: When the Head Unit power is on. 

 Lights 

red: 

 

• When the speaker cords are short-circuited.

 

•  When the speaker output line comes contact with the 

car grounding wire.

 

•  When this unit fails and the speaker output generates 

a DC power source.

 

•  When the amplifi er internally creates a high-pitched 

sound.

 

•  When the connection of the Head Unit or this unit is 

not completed.

 Turn off the power supply before changing the 

 Stop to use the unit when the red indicator 

  If the red indicator lights up, this unit will 

automatically shut down. Confi rm the speaker and 
other audio system’s wiring. 

 BASS BOOST control knob
 

Turn this knob to boost the 45 Hz frequency sound. 

 

It enhances the low-pitched sound.

 

For some speakers, the sound may be distorted 
because of the excessive power input to them. In that 
case, turn down the bass level until the distortion 
stops.  

 

Setting range: 0 dB to 15 dB 

 GAIN control knob
 

In some instances, the acoustical output from each 
speaker may not be balanced properly depending upon 
the type of speakers or Head Unit being used. 

 

Up:  Turn up the knob when the sound volume is not 

satisfactory even though the volume of the Head 
Unit is increased.

 

Down:  Turn down the knob when the sound is 

distorted.

 Input select switch (LINE, SPEAKERS)
 

LINE: When using RCA INPUT connectors. 

 

SPEAKERS: When using SPEAKER INPUT connectors. 

 Channel A speaker output connector (SPEAKERS)
 

 Left Side (

) 

 

 Left Side (

) 

 

 Right Side (

) 

 

 Right Side (

)

 Fuses (FUSES) (35 A

2)

 Upper cover

 Channel B speaker output connector (SPEAKERS) 
 

 Left Side (

) 

 

 Left Side (

) 

 

 Right Side (

) 

 

 Right Side (

)

 Battery connector (

12 V)

 

To the car battery, continuous 

12 V DC. 

 Amplifi er control connector (CONT)  
 

To the head unit’s external amplifi er control power  
lead or to the car battery, continuous 

12 V DC.

 Ground connector (GND) 
 

To a clean, bare metallic part of the car chassis. 

 Crossover fi lter switch (LPF, OFF, HPF) 
 

LPF (Low Pass Filter): LPF cuts off the treble, and 
outputs only a low-pitched sound for the subwoofer.

 

OFF: All frequency bands are output without fi ltering. 
Select when a subwoofer is not connected.

 

HPF (High Pass Filter): Sound is output from the 
speakers for a high-pitched sound and midrange 
sound after deleting the low-pitched sound.

 Crossover frequency control knob (FREQUENCY)  
 

The frequency band of the treble and the bass played 
back on the front and rear speakers is adjusted.

 

Setting range: 50 Hz to 250 Hz 

 Speaker output terminals (For CH A)  
 

Equipped with RCA output for adding a power 
amplifi er. 

 

It is not a Speaker input terminal. 

 Channel A input terminals (LEFT, RIGHT)  

 Channel B input terminals (LEFT, RIGHT)  

 Speaker channel select switch (4CH, 2CH) 
 

4CH: When connecting Head Unit with 2 preout leads.

 

2CH: When connecting Head Unit with 1 preout lead.

The upper cover can be reinstalled along with the 
reinstallation of the main body of the unit, such that 
the cover is aligned with other devices for neat and 
better look.











 





 

 









For channel A (except 

)

For channel B (except 

)







 









How to dismount: 
Unscrew the terminal screw 
with Allen wrench 

.

Note: 
 Do not insert anything between the upper cover and 

this unit. Doing so will cause damage to this unit.