Question about Sony ICF-SW1000T AM/FM/SW Radio

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FM distortion Changing IF filters for more narrow type (230kHz bandwidth) the set is having slightly distorted sound on exact frequency (on medium to weak signal strength), but no distortion when moved 0.05MHz (one step) up. The best sensitivity is on the exact tuned frequency and now I can not decide if it is due to PLL oscillator frequency alignment or FM tracking alignment problem (stereo comes O.K.).

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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kb8dns
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SOURCE: My sw77 has distortion on fm stations when there

A bit late on this..... Sounds like a fault with the electrolytic capacitors. This can be repaired, please email me.... Rod (poikaa@yahoo.com )

Posted on Jul 16, 2010

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kb8dns
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SOURCE: Sony ICF ICF 77 Receiver has intermittent Low

Usual problem of these receivers is faulty capacitors. Recommend replacement of all surface mount capacitors and alignment. Contact me .... poikaa(at)yahoo(dot)com

Posted on Feb 06, 2012

SOURCE: Sony ICF ICF 77 Receiver has intermittent Low

send to a service of sony repairs mail: (medina604@gmail.com) in north Spain

Posted on May 06, 2017

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1 Answer

DIGITAL S METER READING TOO HIGH WHAT VR POT TO ADJUST


please follow this steps and fix it. GOD BLESS you

    • 1
Turn on all of the devices in your sound system. Turn off any auto-equalizers on your sound system to gain fullest control over frequencies. This switch might be found on the receiver or the equalizer itself.
    • 2
Play a test song on repeat. Choose a song with both extremely high and extremely low instruments so that you have a wide frequency range to listen for.

    • 3
Listen for any obvious distortions in the highs and lows of the songs. Lower the knob on your equalizer for any distorted frequencies until the distortion disappears. Try at first to find the highest setting possible without distortion.
    • 4
Adjust all frequency ranges in relation to each other to find a pleasing blend for your room, trying not to let any one frequency range dominate the others. Use the highest non-distorting settings found in Step 3 as maximum settings, but don't be afraid to lower a booming bass or a screeching flute that disrupts the overall blend of the music.
    • 5
Play a song from a different genre to test how the EQ works for different types of music. A hip hop song will have louder lows than a string quartet, for example, so make sure your bass frequencies sound crisp on both types of music.

Nov 07, 2013 | Magnum DeltaForce CB Radio

6 Answers

DEH-P7900 BT US model. Isthere any way I could change the tuner frequency to european one. Thanks.


The DEH-P7900BT is almost identical to the DEH-P85BT sold in Europe.

This is a US model and will tune most AM/FM stations in the UK/Europe. The FM broadcast band is 87.8 to 108.0 MHz. so it will not pick up any FM stations outside this range. Also, the tuning is in odd increments (such as 96.1, 96.3, 96.5, etc.) so some stations with even frequencies will be slightly distorted, depending on the power of the signal the station generates.


I found this bit of info for you but ill keep looking and let you know what i find out.
Also have you tried it in europe to see if it does work or not let me know ok

Mar 30, 2008 | Audio Players & Recorders

2 Answers

Sony ICF ICF 77 Receiver has intermittent Low Frequency distortion burst when tune exactly to the center of an FM frequency, say 102.5 mHz. When radio is tuned .5 mHz. + or - of the main channel frequency...


Usual problem of these receivers is faulty capacitors. Recommend replacement of all surface mount capacitors and alignment. Contact me .... poikaa(at)yahoo(dot)com

Jan 13, 2011 | Sony ICF-SW77 AM/FM/SW Radio

1 Answer

Short static burst


I don't know a whole lot about microphones, but if it's wireless, then it has to accept interference according to the FCC. Wireless microphones normally connect using RF transmitters/receivers which can normally be tuned to specific short-range broadcast frequencies, which can be interfered with by passing waves of other frequencies. Even if the broadcasted radio waves aren't the same frequency, or within the same bandwidth, the harmonic distortion radiates at multiples of the fundamental (broadcasted) frequency.
If you can, try changing channels and see if that clears things up. If not, then perhaps contacting the manufacture can help.

Jun 03, 2010 | Sennheiser (EW165G2A) Professional...

2 Answers

I have a pioneer gm-x 304 amp. I want to know what are the lpf-off-hpf switches for< and what sdhould I set the input levels to?


Hello packs6,

The lpf-off-hpf switches control the "low pass" and "high pass" filters. When driving full-range or component speakers the filters are usually operated in the "off" position to send all frequencies to the speakers. When driving a subwoofer, the best position is "lpf". If you have a separate amp to power a subwoofer, this amp can be used just for the high frequencies by putting the switches in "hpf".

Input levels should be adjusted to match your receiver output. You don't want the levels so high that distortion results. But you want it high enough for the amp to be able to produce maximum output. Start at about midrange and adjust the receiver volume to a little higher than a comfortable listening level. Adjust the amp gain (level) counterclockwise until you begin to hear the speakers distort. The turn the control slightly clockwise until the distortion disappears. That's the best setting.

Hope this helps.

Sep 02, 2009 | Pioneer Car Audio & Video

1 Answer

Not gettin enough bass


Hello saini_jatt_2, On the JBL3501 700 watt monoblock, you have adjustments for low pass and a setting for boost marked DBO, allowing you to select and boost the frequencies sent to the subs. If your amp is not the 3501, but a different JBL amp, the settings may be different. Set the LP to either the white dot (about 100Hz) or slightly below to about 80Hz. Set the HP to about midscale or slightly higher. Set the boost to wherever the bass sounds best. One other setting that will affect bass volume is the "input level" or gain control. It should have been properly set by your installer, but you can "tweak" it for best performance. Turning it up increases the sensitivity and matches it with the output from your head unit. Too high will cause distortion. Too low will result in less bass. So you want to set it just to the point that you begin to hear the distortion and then back it off slightly until the distortion disappears. Hope this helps.

Jun 05, 2009 | JBL GTO1202D Car Subwoofer

1 Answer

Pioneer GEX-FM903XM, system works great, however it often drops out and has just static. The signal indicator is strong. I think there is a bad connection into the radio. Where should I start...


It may be possible that the FM frequency chosen during setup, is in use in your area by a strong signal from a local station. Change to another frequency and see if the situation improves.


The following is from the Operation's Manual:


FM Modulator Setting
You can adjust FM Modulator frequency and output level.
7 Frequency
If output from the FM Modulator is hard to hear due to interference from a strong broadcast
station transmission, you can switch to another frequency.
You can adjust frequency between 87.9 and 90.1MHz.
7 Level
If the output sound is too quiet, too loud or distorted, you can adjust FM Modulator output
level.
You can adjust level between “LEVEL–1” and “LEVEL–7”.
1. Press the POWER button for 2 seconds to enter the FM Modulator Setting
mode.


2. Select the desired frequency
with the left/right arrow buttons.


3. Increase or decrease the Level
with the up/down arrows (buttons).




4. To cancel the FM Modulator Setting mode, press the POWER button again
for 2 seconds.
Note:
• After entering the FM Modulator Setting mode, if you do not perform an operation within about 8 seconds, the FM Modulator Setting is automatically canceled.




Nov 29, 2008 | Pioneer Car Audio & Video

1 Answer

Sound Distortion


somekind of hardware side failure or bad drivers.
I hear sounds from my audio output if i connect my headphones there directly but when I connect it to my speaker system they filter the distortion.

Apr 13, 2008 | ASUS M2N-E SLi Motherboard

1 Answer

Alpine pdx 1.1000 amp


These subs are dual voice coil I'm sure...make sure they are putting a 2 ohm load on the amp total, and also set your gain and frequency setting right. Set the frequency around 85 or 90, make sure the lo pass filter is on. Turn the gain ALL the way down and turn your stereo to the point right before your speakers distort....then slowly increase the gain until the subs are playing at full volume. This should not even be close to all the way up, and the subs should sound accurate and bold. Turning them past this point will cause distortion, in which case you should back off the gain a bit. Distortion causes power to cycle through the amp very rapidly and can cause blown subs and blown fuses. If you do not know how to wire both subs for a combined load of 2 ohms, please let me know what type of subs you have.

Aug 05, 2007 | Alpine PDX-1.1000 1000W x 1 Car Amplifier...

1 Answer

Samsung VP-D10 Mini DV Digital Camcorder


hi, I wish you wouldve given us more details regarding the kind of distortion you get on the LCD screen. if objects kinda fuzz out, it can be related to worn headdrum, i.e. worn heads. The heads are tuned with the input-capacitance of the PB-amplifier on the white-frequency of the recorded RF(is in FM with high frequencies on white) . The wear of the heads will decrease their inductance so the tuned frequency is going up.The video-amplifier and demodulator circuits can`t compensate it. Another reason can be a misaligned FM modulator( frequencies for black and white are not set correctly). Finally the AVC of the camera itself can be faulty. The guiding posts will never cause such problem but their setscrews tends to get loose. Tighten them carefully. Good luck

Mar 27, 2006 | Samsung VP-D10 Mini DV Digital Camcorder

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