led@orstcs.UUCP (led) (07/31/85)
I have two questions to put forth. As I am new to the notes files, please pardon any mistreaks :-). 1) I am having a static problem with my Techniques SLQ-312 turntable. I have looked at the "static mats" that are sold in my local store, but I don't think that I can use them, as my tt uses holes in the mat to poke "fingers" through to find record-size. Any suggestions? (I clean the records before every play, by the time I flip them over, they are staticy again! ARRGGHHH!) 2) I purchased a CD player under the asumption that there was low noise/hum... after a while, I realized that there was a lot of hum involved with ANY disk I played (I thought that it was just the recordings that I was listening to). I went and purchased a new amp, (techniques SA-350), and upgraded other components, even going so far as to get an equalizer. I still hear noise! Does anyone know if the JVC XL-V1 CD player is just subject to noise, or am I just very unluckey with the CDs I purchase? (It is noise enough to be VERY audible at a volume setting of 2 or 3). Thanks in advance. ------------- Lee Damon {tektronics,hp-pcd}!orstcs!led --- UUCP 17/6 {SysOp,Lee Damon} --- FidoNet
ark@alice.UUCP (Andrew Koenig) (08/03/85)
> 2) I purchased a CD player under the asumption that there was > low noise/hum... after a while, I realized that there was a lot of > hum involved with ANY disk I played (I thought that it was just the > recordings that I was listening to). I went and purchased a new > amp, (techniques SA-350), and upgraded other components, even going > so far as to get an equalizer. I still hear noise! Does anyone know > if the JVC XL-V1 CD player is just subject to noise, or am I just > very unluckey with the CDs I purchase? (It is noise enough to be > VERY audible at a volume setting of 2 or 3). In general, you should not hear any hum; if you do, something is probably wrong. Try to isolate the source: 1. Disconnect the speakers. If you still hear it, it is mechanical, probably coming from a power transformer in one of your components. (don't laugh! my power amp hums loudly enough to hear when no music is playing, the refrigerator and furnace aren't running, and you sit near it) 2. If the hum level stays constand when you change the level of the volume control, it's coming from somewhere after the volume control. 3. If you get hum when you select the CD player but no disc is playing, the CD player may be at fault or it may be a ground loop. To find out, disconnect one channel. If the hum vanishes on the remaining channel, it's a ground loop. 4. If you get hum only when you select the CD player AND a disc is playing, it's almost surely the player. Try playing, say, the silent band from the Elektra test disc ("The Digital Domain"). If you hear anything at all, the player requires service (but make sure it's not a ground loop). 5. Oh yes: if you haven't done so, replace your connecting cables and make sure that doesn't cure it.