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Philips d8444 radio recorder have no sound. Power is on, led ok, it seems to be problem with amps or preamplifier...Only one itegrated circuit on amp-cassete board, named TA 7658 P, description incatalog as tape recorder preamplifier - maybe is for amplifier for all pourposes; radio, casete, line in, out, ad if it is bad....no sound? Can it be replaced with TA 7658 or simmilar? Thanks.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Technics SH-AC300 Connection to Power Amp & Pre-Amp

Hi!
The problem is, that your SH-AC300 needs an amp with 5.1 input (but no decoder). For this purpose technics delivered SA-AX710.
So if you'd like to use your current equipment it would be impossible.
The only option is for you to buy 2 more Power Amps (SE-A900S), so that each of 3 amps would take care for one part of music. (one for FL, FR; one for RL, RR; and one for sub and center).
Another option is for you to buy SA-AX710. Then all the problems would be solved with it.

Posted on Feb 24, 2008

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marsrover
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SOURCE: My technics se hd 51

please bring a good contact cleaner from radio shack near you and apply the spray over the socket of the headphone(the place where you put your headphone jack)take headphone jack out and apply spray in and insert the jack in and out many times.-also check your system setup and confirm that all speaker are on- no mute button pressed-no cable is disconnected.

Posted on Jul 13, 2008

SOURCE: Crate Vintage club 212 60

I just bought the Vintage Club 60 and am loving it. $300..Pretty good deal huh! Plenty of bass...Have you tried the low boost and mid boost switches? they completely change the way the amp sounds. Also the stock speakers are **** so I'm dopping some Celestion Vintage 30s. Also is anyone getting some tube jingle with the VC60? I'll probably have to take it to someone...

Posted on Nov 04, 2008

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SOURCE: muffled sound from speakers when connected to laptop via amplifier

You need to buy an analog to digital converter box if you want to get superb sound quality from your computer.

Posted on Mar 10, 2009

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SOURCE: I have a Realistic STA-2100

Tandy Consumer Services (Radio Shack's repair shop) can fix it for you. You can ask for an estimate first, so you'll have a good idea of the repair costs. I have one of these units myself, and I used to work for Tandy. They have all of the schematics and parts that they'll need to repair it. You could probably have it done for less than $200.

Posted on May 04, 2009

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I have a Sharp 70" (LC-70LE632U) LED TV. When you turn it on, the front led is on, but no screen. After a few seconds, the front led starts 5 short and 2 longer blink and continue this way constantly.


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices
http://electro-medical.blogspot.com/

Blinking codes details of many popular brand TVs are given. Surf the site with patience. If blinks continue without any pause, the main board is faulty.
Counting of number of blinks to Philips TVs is entirely different to that of other brand TVs. It is not a direct count procedure. The site have details about how to count the number of LED blinks [Fault Codes] to Philips brand TVs are given; along with details of the faulty circuit location

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42 Philips tv won't turn on just blue light flashing


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience. If blinks continue without any pause, the main board is faulty.
Counting of number of blinks to Philips TVs is entirely different to that of other brand TVs. It is not a direct count procedure. The site have details about how to count the number of LED blinks [Fault Codes] to Philips brand TVs are given; along with details of the faulty circuit location.

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Philips record player


Hello
If use box trips out when you switch ON thie DVD player, the power supply regulator board inside the DVD player has some kind of Diret Short circuit with it. The set needs through checkup, sometimes the power regulator boad may need replacement. The components of philips power supply systems are ver difficult to get from open electronic spare part market. OK.

Nov 11, 2011 | Televison & Video

1 Answer

Philips HTS3010 not powering on and the power button LED keeps blinking and and click sound from DVD while power Led blinks Help me on solving it.


Hi,Even your DVD is newer version but would you please try the following solution that I provided for someone else....It may help..Because ,when a capacitor in the power circuit board fails, power led blinks and tray sticks too..So take care.
--------
it is a common problem on Philips DVP 630/642/37 series DVD players..As Power problem..A blinking red power button urges you that there is a malfunctioning capacitor in the circuit board.

This is actually surprisingly easy to fix. but it needs soldering iron before.any attempt. Here are the steps .The decision to try this is up to your own discretion and may be a last ditch effort before throwing the player away.
Unplug and take the metal cover out (plenty screws on side and on the back): Check the board to see if capacitor numbered as "C316 "is bulging-/leaking. If so, get a 1000u capacitor >=16V and replace it..
If you cant do it find a handy man nearby you and ask him to do it..It takes just 10 minutes but you must obtain the capacitor from Radio Shack (2.00 USD) before you begin..

Take care and do not forget to rate me too..Thanks

Dec 09, 2010 | Philips HTS3450 System

1 Answer

I bought a Behringer Eurorack UB2222FX-PRO at a garage sale. I am getting no signal at all through the channels and no levels appear on the LED VU meter. What could be wrong?


It is quite possible that you have bought a set that has a faulty preamplifier. The equaliser needs many such mixing preampflifer IC's mostly coupled together and it could be that there is a failure in one or several of the channels, the stages of the preamplifier. You must use a signal test to identify the faulty stage. You will need some help to go through these circuits and identify the op amps that are faulty. Try to check for voltage on the op amp stages and test with an audio signal for the section in fault. Hope you try. Good day.

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How do I record a CD from an album on a turntable?


Assuming you have a functioning turntable either self-pre-amplified or through a component (such as a receiver or integrated amp) with an internal Phono preamplifier just connect the self-preamplified TT directly to the analog inputs on the CD Recorder; or connect the CD Recorder to the receiver / integrated amp as if it is an analog tape deck (which it functionally is in this case).

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1 Answer

No Audio when disconnect from external amp and hook to speakers


In a radio like your Pioneer and all similar units there are always a pre-amp circuit that feeds a power amp circuit,In some players there are more than one pre-amp circiuts. It is possible and highly probable that the power amp circuit in your Pioneer is shorted, so you still get some audio output , but very little. I believe this is your problem and I suggest that you bring it to a repair shop for an estimate or replace the unit. Good luck and please rate this answer, Thanks.

Apr 12, 2009 | Pioneer Car Audio & Video

1 Answer

Plug in,time will goby then it goes blank off, trys restrting


Sounds like The main power supply regulator section circuit fault. Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electro-medical.blogspot.com/
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.
Counting of number of blinks to Philips TVs is entirely different to that of other brand TVs. It is not a direct count procedure. The site have details about how to count the number of LED blinks [Fault Codes] to Philips brand TVs are given; along with details of the faulty circuit location.

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2 Answers

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1 Answer

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Please out power amplipier section. Power driver Transistor may have been destroyed. Also chekc rectifier diodes.

Tell me if your problem has been solved.

Good luck

shadab_a4u@yahoo.com

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