| Subject | Text |
| 120 cycle hum of death! | I'm working on Kyocera receiver that is giving a nasty 120 Hz hum. It plays fine and sounds good onc |
| Speakers and wiring are good. The distortion is there regardless of input - whether internal (tuner) |
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| Rotel RA980BX distortion | At the moment Im unfortunately working without a circuit diagram, but I do have the benefit of one c |
| Ok. So if it's the preamp, I'm thinking it would probably be something like a capacitor that was the |
| New here, amp repair? | Hi people,
I'm not exactly well versed in electronics. I know how to be safe, I can solder and |
| Channel imbalance was in fact down to damaged speaker cable but nonetheless unit now back to factory |
| YAMAHA RX-V2500 PA Problem | Hi All
I hope someone can help with this:
I have a RX-V2500 on the bench with what I believe |
| Sony WM-D6c | Disassembled to fix no FF, No rew problem and replaced the belt and a needed Mic jack. After re-ass |
| I look for U. and Serv. manual: Marantz 2265, I can exchange | I look for User and Service manual:
Marantz 2265-
Superscope by Marantz R1240,
Sony STR-V5,
Ai |
| If anyone has some info on this amp please post a reply here
i also have one Prinzsound SA-5001
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| Service manual/help for TASCAM US-122 usb audio card | Hello to all
I have in repair a tascam us-122 audio card
The left channel is not working I have |
| Which transistor blew? Was it a main output transistor or smaller one in the pre-amp stages? Why did |
| My manual says 'preamp' in exploded views and 'processor' in schematics. |
| onkyo TX-DS575X AV Receiver | This is a common problem with Onkyos. There are about 10 muting transistors located on the preamp bo |
| Thanks for the very good suggestions torbjorn.
Wish I could scope out some waveforms but my old s |
| modifying headsets/earbuds possible? | My telephone has a 2.5 mm headset/headphone jack. It will output stereo to my standard stereo earbud |
| [quote:483830b19d="Anonymous"]Do all of the powersupplies test within specifications? What do the ou |
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| Sub-woofer hum | I have a pair of Atlantic Technology 352 PBM powered sub-woofers. They both developed the same prob |
| Recording from a mixer to a laptop | Hi all,
Just a short question. Is it possible to record from an audio mixer (from the headphone s |
| HELP stero repair | my first post, thanks for reading. i am repairing my bosses (i know!)vintage receiver, pioneer sx95 |
| Telefunken stereo green sensor button problem | Can anyone point me to a repair shop capable of repairing a Telefunken "electronic center 6001 |
| Re: onkyo TX-DS575X AV Receiver | [quote:847b137c3e="Lurker"]This is a common problem with Onkyos. There are about 10 muting transisto |
| Had the same problem, but AN 5270, dont seem to work as replacements, if you get one from a similar |
| It worked! =D | Quick update guys...
I've replaced IC302 (MC14052) - 4-ch multiplex and it worked! This IC functi |
| Guitar amp problem | Hi folks, don't know if anyone can help me but my problem is this:
I've got a Sessionette 75 guit |
| Here is a couple of schematics.
The yellow is the pcb for the lamps and all you need is two wires d |
| First off, sorry about all the double and triple posts. I've justmade another interesting find. Thee |
| No sound from a Sony MDP-V9K | I have an old Sony MDP-V9K Lazerdisk player with no sound, power and picture work fine.
It was bein |
| [quote:9df6dae0d3="vtech"]There should be no hum whatsoever when you turn counter- clockwise all the |
| [quote:fcb0f223cd="fongs"]Then u could be having a bad transistor, dying up capacitor or bad groundi |