Question about Alpine TDM-7574 Cassette Player

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No sound from tuner

Hi connected unit into car and getting sound from cd multichanger and cassette deck but nothing from tuner. reception is very good any ideas

Posted by Anonymous on

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Posted on Jan 02, 2017

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SOURCE: No sound from front speakers during CD operation.

I think you are using an external amplifier,if this is the case,you may be using the wrong remote wire for the amp.
Alpine use two blue wires,BLUE (only) this wire is for the pwr antenna and every time you insert a cd, this pwr line cut out.
BLUE/WHITE STRIPE this is the remote wire that you need to connect the remote of the amplifier.

thanks for rating

Posted on Feb 12, 2008

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SOURCE: No sound coming from deck

check the remote wire(the blue with white) is it giving 12 volts to the factory amp? some ford have amps that needs to turn on when the radio turns on.

Posted on May 28, 2008

  • 2 Answers

SOURCE: No Sound from CD but I do get sound from tuner

you have the blue, power antenna, wire hooked...
(blue/white is remote for amp)

Posted on Sep 25, 2009

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I would have thought that it should go from the amp to the tuner,then the tape deck and finally the CD deck.

I'm suspecting that your tuner is faulty and thats whats causing the system to shut down

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It could be that IC's that control the AM/FM radio have failed and need replacing. On the circuit diagram it has two numbered LA1240 and LA1230. Though it's unlikely both would fail at the same time. Unless you were not using the AM radio and that failed first and then the FM one went. However there is a 7 pin device which is called the Front End. This is located connected to the tuning gang. The metal thing with flanges that in-twine. Both the AM and FM aerial leads go into this before reaching the IC's. It contains a FET and some transistors. It has 12 volts on pin 4. And there is a 300ohm output on pin 3, where both FM and AM signals come out. So you can check that out. If it's not showing 12 volts on that pin there is something wrong or the 300 ohms on 3.
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1 Answer

Vol problem


Here is the entire troubleshooting section from the manual.

Your problem is presumed to be a shorted speaker wire. I assume you're not getting the failure ONLY at extremely high volume levels.

Care and maintenance
Occasional care and maintenance of the unit and the software
are needed to optimize the performance of your unit.
To clean the cabinet
Use a soft and dry cloth. If the unit surfaces are extremely
dirty, use a soft cloth lightly moistened with mild detergent
solution. Do not use strong solvents such as alcohol, benzine
or thinner.
To clean the tape heads
Dirty tape heads cause sound deterioration. After every 10
hours of use, clean the tape heads with a head cleaning
cassette. Refer to the instructions of the cleaning cassette.
To demagnetize the tape heads
Use a demagnetizing cassette after every 20 to 30 hours of
use. Refer to the instructions of the demagnetizing cassette.
Care of CDs
When a CD becomes dirty, wipe it from the center out with a
cleaning cloth. After playing a CD, store it in its case. Do
not keep it in hot or humid places.
Care of tapes
Store tapes in their cases after use. Do not leave tapes near
magnets, motors, television sets, or any source of
magnetism. Do not expose tapes to direct sunlight, or leave
them in a car parked in direct sunlight.

REFERENCE
Troubleshooting
If your unit fails to perform properly, check the following guide
and the relevant sections of the Operating Instructions.
There is no sound.
•Are the speakers and AC power cord connected properly?
The unit shut off suddenly.
•Possibly a short circuit in the speaker terminals.
Disconnect the AC power cord from the AC power outlet
and re-connect the speaker cords correctly.
The unit blacks out when the unit is turned off.
•Is ECO mode set to on?
Erroneous display.
•Reset the unit.
Poor radio reception.
•Check antenna connection. Adjust the antenna to find the
best reception.
•Move unit and antenna away from other electric appliances
and cords.
The tape does not run.
•Is the deck in pause?
Poor tape sound.
•Check for dirty heads. Clean them if needed.
•Use type I (normal) tapes.
Cannot record.
•Is the erasure prevention tab of the tape broken off? If so,
cover the detection slot with adhesive tape.
The CD player works poorly.
•Is the disc correctly loaded?
•Is the disc dirty?
•Is the lens affected by condensation? If so, wait
approximately one hour and try again.
Resetting the unit
If an unusual condition occurs in the display window or the
cassette deck, reset the unit as follows:
1 Press POWER to turn off the power.
If the power cannot be turned off, disconnect the AC power
cord, then plug it in again.
2 Hold down s and press POWER.
Everything stored in memory after purchase is cleared.

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4 Answers

No sound coming from deck


check the remote wire(the blue with white) is it giving 12 volts to the factory amp? some ford have amps that needs to turn on when the radio turns on.

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It will only accept audio from the bus in conections when a multi changer is connected and selected.

This is how I connect my mp3 player to my sony.

Swap multichanger audio outputs at the rear of the stereo for my mp3 player, press source to select multichanger.

Remember as I said, if there is not a control cable connected to your multichanger it wont wotk!

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