Clarion VRX755VD Car DVD Player Logo
carlos gonzalez Posted on Aug 05, 2007

VRX755VD "triggered audio mute for cellular telephones"

I accidently grounded the wire for the "triggereed audio mute for cellular telephones" thinking that it was the parking brake wire. i disconnected the wire but now no sound will come out of the speakers. The system powers up and appears to be playing the cd or on the radio, but still no sound. I believe that it is still stuck on mute due to the triggered audio mute. Any suggestions how i can fix this? I already hit the reset button on the unit, but still nothing. thanks...

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  • Posted on Aug 09, 2007
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Joined: Aug 09, 2007
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Well, it sounds like you need a new output IC, which is what produces sound to the speakers.

  • Anonymous Apr 02, 2012

    What is output IC? Where do you get part? And howl do u replace it?

  • Anonymous Apr 03, 2012

    svrider01 If your problem is concerning the Clarion VZ400 that is in your "problems" under your profile, try disconnecting the phone interrupt cable and see of that fixes it. Let me know if that helps.

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I have an 04 Saturn Vue. My radio turns has power, CD player works but I cannot get any sound. Other day when I was driving the speakers got all staticky and then sound went out. I check the 3 fuses and...

What system does it have ? Base or up level ,does it have a amp ? Do you know what a RPO code is ? Without testing no one could say for sure what the issue is . First off would need to know what system we are dealing with .
RPO Options
The entertainment system on this vehicle is configured with either a base or uplevel audio system. Both the base and uplevel audio systems contain a radio, antenna, and speakers.
The following shows the Enteratinment RPOs that are available for this vehicle:
• (UM7) AM/FM Stereo
• (U1C) AM/FM Stereo CD
• (US8) AM/FM Stereo, CD, MP3, RDS, EQ
• (US9) AM/FM Stereo, 6-Disc CD, MP3, RDS, EQ
• (UXQ4) Base Four Speaker
• (U79) Uplevel Four Speaker
• (WBM) Premium Audio
• (U2K) Digital Radio

Circuit Operation
Radio Power: The main radio power is supplied by the 10A RADIO (BATT1) fuse in the body control module (BCM). Radio switch-on power, 12 volts in ACC, RUN or RAP, is supplied by the 10A RADIO (ACC.) in the BCM.
Radio Grounds: The main radio ground provides a ground for the radio circuits. An additional braided ground strap provides a shielding radio case ground to reduce EMI noise. Both grounds are connected together inside the radio.
Radio Speaker Outputs: At zero volume, the plus (+) and minus (-) speaker outputs are both approximately 5-6 volts, measured to vehicle ground. If a plus or minus for any speaker output is shorted to ground or voltage, the radio circuitry will turn OFF all 4 speaker outputs for component protection. Above zero volume, the plus and minus change to create a voltage difference between each other, to drive the voice coil of the speaker.
Radio Park Lamp Input: The radio park lamp input allows the radio to sense when the vehicle parking lamps are ON. When the parking lamps are ON, this circuit goes to battery voltage, and the radio display back-lighting switches from full bright to the brightness level determined by the I/P illumination input.
Radio I/P Illumination Input: A pulse width modulated (PWM) voltage for instrument panel (I/P) illumination is provided to the radio I/P illumination input. The Radio uses this input to directly illuminate the radio buttons and adjust the radio display back-lighting when the park lamp input is ON.
Amplifier Power: The main amplifier power is provided by the 20A PREM AUDIO fuse in the instrument panel fuse block..
Amplifier Radio Speaker Inputs (WBM only): The radio speaker outputs, at a reduced output level for amplified systems, are the amplifier inputs. The amplifier boosts these inputs and outputs them to the vehicle speakers. Speaker plus and minus circuits from the radio change to create a voltage difference between each other. If one speaker plus or minus is open between the radio and the amplifier, the input to the amplifier is approximately half because only one of the circuits is changing. The speaker for that channel then operates at approximately only half the normal volume.
Amplifier Speaker Outputs (WBM only): At zero volume, the plus (+) and minus (-) speaker outputs are both approximately 5-6 volts, measured to vehicle ground. If a plus or minus for any speaker output is shorted to ground or voltage, the amplifier circuitry will turn OFF either the front outputs or rear outputs for component protection. Above zero volume, the plus and minus change to create a voltage difference between each other, to drive the voice coil of the speaker.
Amplifier Radio-On (WBM only): When the radio is ON, this circuit is pulled to 12 volts by the radio. The amplifier switches ON when this circuit is 12 volts and switches OFF when this signal is 0 volts.
Remote Radio Audio Signal Inputs (UE1 only): Audio output from the OnStar® communications module connects to the remote audio signal inputs of the radio. When the cellular telephone mute signal goes to 0 volts, the radio over-rides any other audio signal and uses these inputs as the source for output to the speakers.
Cellular Telephone Mute (UE1 only): The OnStar® communications module uses the cellular telephone mute signal circuit to over-ride the radio for OnStar® communication. When cellular telephone mute is not active, this circuit is held at 2 volts by the radio. When the cellular telephone mute signal is pulled to ground, the radio over-rides any other audio signal and uses the remote audio signals as the source for output to the speakers. If the radio was OFF when this circuit is pulled low, the radio will turn ON. Additionally, the radio fades the speakers to full front, adjusts the volume to an initial audible level, and sets an AutoTone designed for optimal use with OnStar®. When the mute signal is no longer pulled to ground, the radio returns to the mode it was in previously.

Hooking up a professional or factory scan tool that can read radio codes would be one of the first test's to do .
DTC B1025, B1035, B1045, or B1055 (w/out RPO WBM)
DTC B1025, B1035, B1045, or B1055 (w/ RPO WBM)
DTC B1030, B1040, B1050, or B1060 (w/ out RPO WBM)
DTC B1030, B1040, B1050, or B1060 (w/ RPO WBM)
DTC B1259
The following conditions are present for 250 ms or longer:
B1025 - B1055 01
One of the speaker positive output circuits is shorted to battery.
B1025 - B1055 02
The speaker positive output circuit is shorted to ground.
B1025 - B1055 04
The speaker positive output circuit is open.

Your best bet , take it to a qualified repair shop .
5helpful
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I need a wiring diagram for my clarion vrx755vd

yellow battery
red accessory
black ground
purple right rear + speaker
purple/black right rear -
green left rear +
green/black left rear -
white fr left +
white/black fr left -
grey fr right +
grey/black fr right -
blue auto antenna
blue/white rem amp
brown phone mute
orange/white illumination
grass green handbrake but if u want to play dvd's
whilst u drive connect this to earth

pls rate people arnt rating hope this helps
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I have a pioneer super tuner3d it has a mute wire where does it hook up to

This is directly from the installation manual from pioneer website for model DEH-P6600

(Yellow/black
If you use a cellular telephone, connect it via the
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keep the Audio Mute lead free of any connections.)

Basically, you don't hook it up unles you have a cellular telephone in your vehicle, not a personal cell phone.
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YOU WILL HAVE TO TRACE THE WIRES OUT, DO U HAVE A SEPERATE AMPLFIER? MANY OF THESE VANS DO, IF SO THAT IS THE PROBLEM.
HERE IS THE WIRING COLOR DIAGRAM FOR YOUR VAN
1998 Dodge Caravan Car Radio Stereo Audio Wiring Diagram
Car Radio Constant 12v+ Wire: Pink
Car Radio Switched 12v+ Wire: Red/White
Car Radio Ground Wire: Chassis
Car Radio Illumination Wire: Black/Yellow
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Green
Left Front Speaker Negative Wire (-): Brown/Red
Right Front Speaker Positive Wire (+): Violet
Right Front Speaker Negative Wire (-): Blue/Red
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown/Yellow
Left Rear Speaker Negative Wire (-): Brown/Light Blue
Right Rear Speaker Positive Wire (+): Blue/Orange
Right Rear Speaker Negative Wire (-): Blue/White
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if the radio is constantly on mute then it could be the telephone mute wire on the radio harness. The mute function works when the mute wire is sent to ground so it could be that the cable insulation has rubbed off and now touching a ground (cars body etc)
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that is where its suppose to be connected it that you dont have it grounded properly
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Kenwood Car music system Tel Mute problem

Hi,

To my knowledge, some Kenwood head units have a wire specifically for this purpose, to mute the stereo in the event of an incoming mobile call. This would be the brown wire. Normally when not connected to a mobile phone, this wire is shielded/covered. It it was inadvertently exposed and touches any metal part, then it would enable the muting. If the wire is covered and not grounding, then an internal fault exists and most likely the trigger inside where the brown wire leads to.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.
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AVIC-D3 ipod connect&dvd

Maybe you telephone mute wire is accidently touched with the frame(grounded). It's the yellow wire with black stripe, check see if it make contact with a ground point. If it does simply tape it up with some electrical tape. Let me know if that help.
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Wiring problem

Yellow/black
If you use a cellular telephone, connect it via the
Audio Mute lead on the cellular telephone. If not,
keep the Audio Mute lead free of any connections.

Orange/white
To lighting switch terminal.

Blue/white
To system control terminal of the power amp or
Auto-antenna relay control terminal (max. 300
mA 12 V DC).
Not finding what you are looking for?

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