| Subject | Text |
| SONY STR-DG720 Preamp Section Problem | This is a real puzzle -
I have a Sony DG720 with some out of whack voltages on the UPC2581 pream |
| Subwoofer preamp | Hi guys,
I've recently upgraded my stereo to a digital setup, however I'm not sure what to do wit |
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| Technics ST-K808 (tuner+preamp) service manual | Hello.
I am looking for a schematics for the Technics ST-K808 tuner/preamp. Symptom is loss of vo |
| electrohome pa400 tube amp schematic for electric guitar | Hi there.....I am looking for the electrohome PA400 Amp schematic diagram. This was used as a Electr |
| LR Baggs Venue acoustic preamp repair | I did a bad thing and plugged my LR Baggs Venue into a wall wart with the wrong polarity. The preamp |
| Re: electrohome pa400 tube amp schematic for electric guitar | [quote:3d9b2811a9="mccadgs"]Hi there.....I am looking for the electrohome PA400 Amp schematic diagra |
| IC PREAMP for Kenwood KRC 210 | I Have Car Stereo for Kenwood KRC 210 but....
I Dont Have the type for IC Preamp
Can Anyone help m |
| Carver C-20v a/v preamp schematic needed | Hi, If you have a service manual or schematic it would be appreciated. Thanks! |
| Sansui C-77 preamp OWNERS manual... | looking for above, NOT the service manual or schematics.
Thanks, much, Tom |
| Searching for schematics: SONY TA-E 1000 ESD preamp | The title line tells it all - to be more specific: the device looses it's memory when removed for th |
| SANSUI pre-amp C-77 | Please help me to an servicemanual or schematics of a Sansui C-77
Thanks |
| NAD 1020B Preamp service manual | Hello all,
I am looking for a NAD 1020b service manual. If you have one you could share I would gre |
| Old toshiba amp and pre-amp only outputting high freq. | My stereo (old toshiba/aurex components) is only outputting higher frequencies. It doesn't sound muf |
| Re: HELP stero repair | [quote:2890bb5678="tim in pa"]my first post, thanks for reading. i am repairing my bosses (i know!) |
| teac receiver- protect mode, all output transistors are ok. | like the title says, TEAC AG-V8500, I cant seem to figure out why this receiver is going into protec |
| Testing the circuit is to be done with the power off!!
Do not apply power until you are sure you ha |
| [quote:e6a73c2eac="opal"]Thanks for the Info,
i have to addmit, im not into Musik really, so i dont |
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| There could be many things...
I used to work with various Yamaha receivers & to the best of my |
| DIY Disasters | This is a common problem with Onkyos. There are about 10 muting transistors located on the preamp bo |
| New "findings" | OK, no one seems to care about this thread, but I'll post my latest thoughts about the red-level iss |
| Help on RPTV Sound | I have a Hitachi 61SWX10B about 3 1/2 years old. Recently the sound has been crackling and gets wors |
| ..did not know it had a mechanical volume control. As kenray suggested, try cleaning it with a clean |
| 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) |
| 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 |
| 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 |