I am currently sporting an old Hitachi HA-1800 Stereo Amplifier connected up to a radio tuner, turntable, and headphone jack for ipod/laptop playback that I bought at a car boot sale over the summer. It played fine up until a few weeks ago, now I'm only getting sound through the left channel, I swapped around the speakers and tried some speakers on the B speaker system and speakers will only play through the left channel. I currently have one speaker connected to left channel A and one connected to B to give me a mock version of stereo. I'm handy with a soldering iron, but don't really know what to look for if I open it up.
If the problem is too great I'll just dump it and pick up another, I only spent £3 on it, but the great bargain almost makes me want it to work more.
In old stereos the first things I look at are output transistors, solder joints and electrolytic capacitors. If you know how to solder, bad solder joints are pretty obvious. If you need a tutorial on how to spot bad solder joints, look here.
As for bad caps, look here. The info is aimed at computer motherboards but still helpful.
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This device does not have an internal tuner. It is simply an amplifier. The buttons on the front labeled TUNER - TAPE - PHONO - DAT/VCR 1 - VCR 2/TV are selector buttons for additional components that hook up to the respective connectors at the rear of the unit. If you want to play a radio with this device, you must buy a tuner and attach it to the tuner inputs in the rear of the unit.
The manual for the amplifier and all the other units are here. Use the search feature in the top right with just the model number 'AT-5210'. Getting the items in the right order helps. The turntable obviously goes on top. The Amplifier goes in the middle and all the other units connect to the amp.
Most stereo receivers (that is, units with radio tuner and amplifier) have rear audio inputs to connect a CD, DVD, turntable, set-top box, even a TV if that has audio outputs. This is commonly done via RCA connectors like these
If you are trying to connect a ribbon cable tuner to a conventional RCA input terminal amplifier, it won't work because the ribbon cable carries the signal output as well as the data for frequency synthesis which is determined by the processor located in the amplifier ( that is supposed to work with that type of tuner), and the data buss for the buttons on the front of the tuner.
For the time and effort to put into a workaround, it is cheaper by far to get a tuner that will work with your amp. If cosmetics are not an issue, brand of tuner will not matter as their outputs are "Line Level" or nominally 1 volt peak to peak..
To what kinde of AMPLIFIER is the table connected to?? does the AMP have a PHONO input??? if not what input you are using on your amplifier??? or is this an all in one (cabinet) system??? can't google the model I guess it's to old even for a 43 year old tech. like me ha! (I was only 6 in 1974)
Hi Lo Adapters Hi/Low adapters are devices that installers use to convert a speaker level stereo to RCA levels so it can be hooked to an external car stereo amplifier. You can cut the speaker wires and hook the hi/lo adapter right up or you can tap onto existing speaker wires without cutting them so the speakers still play while the tap gives you a connection to the hi/lo device for adding something like a subwoofer amp to the existing speakers.... We have hi lo converters in TWO CHANNEL and FOUR CHANNEL configurations and we have them WITH and WITHOUT adjustments.. The adjustable hi/lo converters allow you to fine tune the hi/lo device to match other levels in the car or to make sure the match between your stereo and amplifier is a good match.. The adjustable line converters are the most popular.. We also have some specialty hi lo converters that have special radio plugs on them that may plug right into your factory stereo. Now you can install an amplifier with your factory radio or install a new radio with your factory amplifier!
what to remember is pre-amp is before the amplifier then the amplifier to the speakers, go this route, Tuner for radio? from the radio tuner out go to the pre-amp tuner input, then from the pre-amp OUT go to the AMPLIFIER IN, tuner, cd, dvd, tv, any source, if you are using a 2 channel amp and pre-amp this is relatively easy, a little more detailed for multi-channel pre-amps and amps but follow the same path, sound source signal ie. tuner to pre-amp, pre-amp out to amplifier and speaker hookup to amp channels,
check volume balance between right and left-then change inter connection between sound source and amplifier with new cabel(i prefer gold plated type connectors)(see radio shack). after that if the problem excit your fault in output transistors or output stereo ic depend on circuit design.
for audio system always you have left and right channels. get the output (left&right) from tuner---go to equalizer input left&right.---from equalizer output go to amplifier inputs.and certainly from amplifier output to speaker.