The basic steps of repairing radios and tape

 The basic steps of repairing radios and tape

Usually the radio is broken just a problem in the power supply or damage to a few ICs, transistor or resistor doang. Being the most degraded in mechanical tapenya ama ic-ic importance, other than that rare, most potentiometers audio've worn (the sound crackle-crackle bener right).Well steps:

    Check the power supplynya first, not broken fuse, there is not the output transformer, rectifier diodes keluaranya gak, if not there try in the dressing-related components, eg replace fuse, transformer, replace the diode, change or other regulators such as 7812.
    If you've bener transformer, a check, the output radio / tape are not, if not there, try to check the output from the radio if there is a small voice output, by way menghunungkan spekaer input to the output circuit (prior to the amps), if there is a check ampifiernya most ic / transistor / resistor is defective. Way of checking ic amplifier, attach the finger at the amps input, if the sound of rumbling drone means amplinya still good.
    If amplinya good, but his radio suspended animation, immediately check the receiver circuit, try to check ic receivers, usually the type of LA to FM and MW, just try changing, feeding you should have a stock of standard IC FM / MW, replaced if not influence, try to amplifier middle where tau is broken up into the output circuit to go into the input amplifier. If radio MW, puter puter tuh spool of red green yellow blue sky, where there is signal amplification tau. There may also be a resistor or capacitor that changes its value or dry, or there is a damaged transistor. Wrote a collection of various types of transistors not expensive anyway, most C945, or 9013/9014 well as the type of thing.
    If the tape, used to clean the wheels, make sure karentnya still good, usually mechanical crashed dusty, if it should be replaced, replace aja, kok mechanical tape sold many, if headnya already ugly, replace it wrote, let her voice sighed again.
    If you have a radio that can dikerjain tape, just try, the voltage measured at each kompoen still good, then you rusakin components / removed (eg IC or transistor or diode), then you measure and observe the damage, so learn from the observations .


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