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 |
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| 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 |
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Not all speakers | Incorrect splices or | Check all splices and connections |
operate | connections |
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| Speaker wires shorting to | Check splices, insulate all bare wires |
| chassis ground or to each |
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| other |
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Blows fuses | Power wire shorting to | Make sure wire is not pinched |
| ground |
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| Speaker wires shorting to | Make sure wire is not pinched |
| ground |
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| Incorrect fuse/fuse too small | Install fuse of correct rating |
Mechanism error | Press RESET, insert disc and try | |
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| again |
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Servo error | Press RESET, insert disc and try | |
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| again |
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CD skips too much | Receiver mount is not solid | Check mounting and backstrap, |
| or backstrap is not secure | tighten if needed |
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Reset
After removing the front panel, use a pencil tip (or any
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
Frequency Response. . . . . . . . . . . . . . . . 20Hz to 20kHz
CD Player
Signal to Noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >90 dB Frequency Response. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Hz to 20kHz,
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,
AM Tuner
Tuning Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530kHz – 1710kHz AM Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30uV Frequency Response. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30Hz to 2kHz,
Auxiliary Input
Input Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400mV RMS for 1 watt RMS into
General
Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 – 16 VDC, negative ground Fuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 amp fast blow ATO Wire Harness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications subject to change without notice.
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