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The device that controls the volume (6 prong switch) that attaches to the volume knob has worn out, one channel works the other doesn't unless firmly pressed IN... I visited my local radio shack, and as many switches (Potentiometers) they have, none match the one located on the receiver.
Please help, would like to fix this myself (am capable) just can NOT locate the part.
Technics SA R330 Receiver.
Go to Fry's Electronics - Pyle wall mount Rotary Volume
controller. Price $21.50. Good Luck.
Posted on Jul 06, 2017
Sorry we have no parts locator service here at this website.
Posted on Jul 06, 2017
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Posted on Jan 02, 2017
SOURCE: Technics SA-R330 recevier/amp
It seems the amplifier of your receiver is wearing out or the power.If the output of your amp usually short circuits you should conclude so.if not you should recheck the power supply whether it has a "slow short circuit" especially on the ceramics. In the meantime install a fan for cooling.
Posted on Aug 13, 2008
this problem can be solve by opening the receiver and check for dry soldering on the audio section of the printed circuit board, resolder if found any.
Also check for electrolyte capacitor if they are faulty by using an ohmmeter to read the faulty.
Posted on May 26, 2010
Tips for a great answer:
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Dismantling Altec Lansing VS 2221 speakers to clean the switch/volume control
Tools: a medium Phillips screwdriver, a craft knife & a can of CO contact cleaner & extension.
1. Remove switch/volume control knob by pulling it off
2. Pull out the base for the stand if attached
3. Unscrew the 2 screws beside the wires
4. Remove the front gauze by prising it out from one of the bottom corners. Keep the gauze straight as it will need to be put back from the bottom to the top.
5. Remove the 2 screws at the top and the 4 long screws holding the speaker. The back will come apart from the front and sides. If it has been glued then use the craft knife to carefully cut the back away from the sides and/or prise it away with a little pressure on the sides.
6. Attach the extension to the can of contact cleaner.
7. Lift the circuit board out and squirt only the switch/volume control. Ensure you squirt the shaft and the internal parts of the switch/volume control. Turn the shaft a few times.
8. Allow the contact cleaner at least 1 hour to dry.
9. Test the speakers. If the noise is still there then repeat steps 6-9.
10. To assemble the speaker do the steps 1-5 in the opposite order.
I hope this is helpful
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