Question about Audio Players & Recorders
Hi, I have a technics stereo which is 7 years old. It is the silver stack system with surround sound speakers (5 in total) It was working fine until 2 days ago, the fault is that the red standby light is showing when plugged in, but to press the actual power on button, it doesnt turn on. Usually, a faint 'click' can be heard when I press the on button. Remote control wont get it to work either. The on button on integrated into the tuner/amplifier section of the stack system. The model no. on it is SA-EH770. Please help, i'm missing it!! Samantha.
The click you hear is the power relay. Normally that would be followed by amother click of the speaker relay. In this case, the output section is in protect mode because of a fault detected. This will prevent the speaker relay from turning on the speakers. This amp will require repair. I don't recall your specific model, but if it has discrete transistors, expect a parts cost in the $20 range. If it has a single output amp pac, then the part could be in the $65 range. Add in the local labor rate for the complete repair cost.
Posted on Apr 02, 2008
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Posted on Jan 02, 2017
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GETTING FAMILIAR WITH VEHICLE SPEAKERS
The car speakers are located within the vehicle. An observation of the passenger side doors should make accessibility to speakers. The remainng speakers would be locatable at the rear area of a sedan car closest to the wind shield area. The category of the vehicle may determine the positioning of speakers within interior either different with sedans, SUVs or single cabin trucks. However, tuning on the vehicle stereo should ascertain the location areas of sound speakers within the vehicle. The speakers may total four for most dual cabin vehicles, or two speakers for single cabin pickup trucks. Unless the vehicle original speakers were malfunctioning alternate procedures are least required. For example, a damaged speaker may require changing for an alternate acquirable at retail. However, speakers are sold in pairs to achieve coordination of sound requiring for the technician to request for purchase parts in pairs.
GETTING FAMILIAR WITH SPEAKER TECHNICAL REQUIREMENTS
The stereo speakers have an entrapment space at each area within the vehicle next to passenger's doors. Acquiring accessibility to the speaker coil requires unfastening the plastic covers or interior insulation. Once unfastening cover, the speaker is exposed requiring unfastening also to dismantle from docking station within the door lodging. The speaker comes loose making possible observation for repairs or replacement parts. The area a vehicle speaker is situated may require an alternate arrangement to achieve accessibility. For example, a sedan car rear speaker is accessible at the luggage truck. Single cabin trucks may have stereo speakers at dashboard corners next to the windshield and air space window spaces at doors. An observation of the speaker area within the vehicle should acquire the tools, and compartments that have to be unfastened before speaker come loose.
ACQUIRING PARTS FOR STEREO REPAIRS
Damage in the stereo setup may require replacement parts. Ascertain the damage from the vehicle prior to acquiring parts. For example, a malfunctioning stereo is physically observed as damaged or least capable of achieving operationally. The stereo speaker's least producing audio sound with proper functioning of the stereo is indication of damage. Once the vehicle damages are ascertained, several additional parts compliment the restoration process. Acquiring a new stereo player would require harnesses, wiring kits, and fasteners also acquirable. A damaged speaker requires dual speakers as replacement to attain sound distribution within vehicle and also as compatibility requirements. Once vehicle parts are acquired for restoration functionalities, tools capable of complimenting the process is required also.
The restoration of damages on the vehicle requires tools to achieve success. However tools have various purposes requiring keen observation of the type of components involved to assemble a tool kit to the task. Observing the broken components would provide details of kinds usually as fastening, unfastening or mending, gripping proposes. Car stereo repairs involve electrical circuits requiring tool separate than the mechanical tools for loosening screws or compartments.
PERFORMING THE REPLACEMENT
The vehicle requires workshop environments to achieve successful technical restorations. Unless any technical malfunctions were observed complementary to the stereo system speaker repairs, the procedures involve removing and replacing component parts to attain regular functionality. Usually, the process of restoring damaged components requires caution to attain success without compromising the integrity of delicate components.
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