Radio, export audio, it s all normal, but what s the matter with no sound on the tape?

The normal sound is that there is a problem with the ** part of the tape, the tape is demagnetized, the head is blocked, the recording and playback switch is broken, and the recording and playback circuit is faulty, etc., which will make the tape unable to play sound. In addition, when playing the tape, the audio should be adjusted to the tape ** mode, otherwise the tape will not be able to play sound. Then there's the tape recorder.

If it is placed for too long, the recording and playback switch inside will cause no sound or a large clicking sound due to poor oxidation contact, which must be powered off and repeatedly press the recording switch to grind off the oxide layer of the inner contact before it can be used normally.

Recorder recording and playback switch.

The first reason is that the magnetic head is broken and there is no sound to receive, the second reason is that the tape is demagnetized, so that the sound can not be released, and the third reason is that the power amplifier circuit of the decoder board is faulty, so there is no sound to release the fourth reason for the horn and horn line.

Actual solution, after checking various reasons, replace the potentiometer, in the case of power-on, press the playback button, use a small magnet, rub back and forth on the head, and hear the horn with the stinging sound of the magnet moving, which is equivalent to magnetizing the head, resetting the playback button, loading the tape, opening it again, and the playback is normal, in addition, if the sound becomes thick and feels that the playback is slow, there is a high probability that the rubber belt inside the cabin is loose or the motor speed is slow, and there is a position on the motherboard to adjust the motor speed, Adjust the motor a little faster to play the sound normally, the sound is normal, play more tapes, drain the moisture of the circuit board electrical components, and the machine will slowly return to its original state.

Summary. 1.To determine whether it is a head fault, carefully disassemble the back cover of the machine, and then touch the head signal input of the playback integrated circuit (TA2002) with tweezers, there is sound in the earphone, so it can be concluded that the fault is at the head end.

Radio, export audio, it's all normal, but what's the matter with no sound on the tape?

Dear, this is caused by the failure of the playback head.

1.Carefully disassemble the back cover of the machine, and then use tweezers to touch the signal input end of the head of the playback integrated circuit (TA2002), there is sound in the earphone, so it can be concluded that the fault is at the head end.

2.The circuit board and tape running mechanism were inspected, and it was found that the magnetic head signal was absolutely connected by the soft printed circuit, and then connected to the input end of the integrated electric lead macro loss circuit with the cable, and the ground wire (black) of the cable was broken.

3.Re-ground the wire, install the tape running mechanism, play the tape sound normally, troubleshooting.

That's all about tapes being silent

What's the deal with the cassette tape playing no sound? The tape recorder will not turn when the playback button rings.

Maybe the head is broken, or the recording and playback switch is in poor contact, it is recommended that you check it, the method is, open the hatch, do not put the tape, turn up the sound, press the playback button, rub the center of the head with a metal object (such as a screwdriver, etc.), listen to the speaker if there is any sound, if the sound is larger, it means that there is no problem, if there is no sound file sound, it means that the head is broken, and there is, if there is a recording button, press and hold the playback and recording button, do not press the recording button to the head, Then press the recording button repeatedly, if there is a noise accompanied by noise, the recording playback switch (internal) has poor contact, and there is a listen, in the absence of a tape, press the playback button, listen to whether there is obvious noise.

Summary. Maybe the head is broken, or the recording and playback switch is in poor contact, it is recommended that you check it, the method is, open the hatch, do not put the tape, turn up the sound, press the playback button, rub the center of the head with a metal object (such as a screwdriver, etc.), listen to the speaker if there is any sound, if the sound is louder, it means that there is no problem, if there is no sound, it means that the head is broken, and there is, if there is a recording button, press and hold the playback and recording button, do not press the recording button to the end, Then press the recording button repeatedly, if there is a noise accompanied by noise, the recording playback switch (internal) has poor contact, and there is a listen, in the absence of tape, press the playback button, listen to whether there is any obvious noise.

Hello has sorted it out for you as follows based on your questions

Maybe the head is broken, or the recording and playback switch is not in good contact, it is recommended that you check it, the method is, open the hatch, do not put the tape, turn up the sound, press the playback button roughly, rub the center of the head with a metal object (such as a screwdriver, etc.), listen to the speaker if there is any sound, if the sound is louder, it means that there is no problem, if there is no sound, it means that the head is broken, and the rock ridge shirt is, if there is a recording button, press and hold the playback and recording button, do not press the recording button to the head, Then press the recording button repeatedly, if there is a noise accompanied by a noise, the recording playback switch (internal) has poor contact, and there is a listen, in the absence of a tape, press the playback button, and listen to the wild mill to see if there is any obvious noise.