CD3720XM

Troubleshooting

Problem

Cause

Corrective Action

Does not operate

No power to yellow wire; no

Check connection with test light;

(display does not light)

power to red wire

check vehicle fuse with test light

 

 

 

 

Inline fuse blown

Replace fuse

No power to unit

Inline fuse blown

Check/replace fuse

No speakers operate

Speaker harness not

Connect speaker harness; check

(display lights normally)

connected

speaker wires

 

 

 

Not all speakers

Incorrect splices or

Check all splices and connections

operate

connections

 

 

 

 

 

Speaker wires shorting to

Check splices, insulate all bare wires

 

chassis ground or to each

 

 

other

 

 

 

 

Blows fuses

Power wire shorting to

Make sure wire is not pinched

 

ground

 

 

 

 

 

Speaker wires shorting to

Make sure wire is not pinched

 

ground

 

 

 

 

 

Incorrect fuse/fuse too small

Install fuse of correct rating

Error-1 (CD Player)

Mechanism error

Press RESET, insert disc and try

 

 

again

 

 

 

Error-2 (CD Player)

Servo error

Press RESET, insert disc and try

 

 

again

 

 

 

CD skips too much

Receiver mount is not solid

Check mounting and backstrap,

 

or backstrap is not secure

tighten if needed

 

 

 

Reset

After removing the front panel, use a pencil tip (or any non-metallic object) to press RESET (20).

Remove Radio From Dash

To remove the radio from the dash, detach the front panel and remove the trim ring by gently pulling up in the middle to release the plastic snaps. Insert removal keys between the radio chassis and sleeve to depress locking springs. Pull the radio out of the dash.

Specifications

CEA Power Ratings

Power Output. . . . . . . . . . . . . . . . . . . . . . . . . . . 16 watts RMS X 4 channels into 4-ohms @ < 1% THD+N Signal to Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . 70dBA below reference. (Reference: 1 watt, 4-ohms)

Frequency Response. . . . . . . . . . . . . . . . 20Hz to 20kHz (-3dB), Auxiliary input used as source reference Reference Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.4VDC

CD Player

Signal to Noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >90 dB Frequency Response. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Hz to 20kHz, -3 dB Channel Separation @ 1kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >55 dB D/A Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Bit/CH

FM Tuner

Tuning Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87.5MHz – 107.9MHz FM Mono Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 dBf 50 dB Quieting Sensitivity (stereo) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 dBf Stereo Separation @ 1kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >35 dB Frequency Response. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30Hz to 12kHz, -3dB

AM Tuner

Tuning Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530kHz – 1710kHz AM Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30uV Frequency Response. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30Hz to 2kHz, -3dB

Auxiliary Input

Input Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400mV RMS for 1 watt RMS into 4-ohms Frequency Response. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20Hz to 20kHz, -3dB Input Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10k-ohms

General

Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 – 16 VDC, negative ground Fuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 amp fast blow ATO Wire Harness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-pin quick-disconnect Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7" x 7" x 2" (178mm x 178mm x 51mm)

Specifications subject to change without notice.

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Jensen owner manual CD3720XM Troubleshooting, Specifications, Reset, Remove Radio From Dash