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    Sanyo Model: MCD-510K CD Radio Cassette Recorder Schematic pls.

    Sirs, Can anyone help service manual for the double deck CD Cassette Radio Recorder for SANYO Model: MCD-510K please? CD player malfunctioning and nearly dead. It Optical lense gives up after a while 1 sec. or so. reads table of contents starts playing sometimes, if plays only for a second and...
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    Simple dB meter driver circuit.

    Sirs, I wish to have still more simpler db/audio peak level meter which can be interfaced just at the output of of pre-amplifier wired around BC148, which I had seen some years back, but I do not have the Circuit. Any idea pls.? However, I am very thankful to RDL2004, who has guided me...
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    Simple dB meter driver circuit.

    Sir, The reply posted by RDL2004 is the exact one which I wanted. A simple vu meter depicted therein by use of diodes is also fantastic. I wish to extend my sincere thanks to him for the efforts made to post me the same. Thanks again with regards, shamim_india. ===
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    Free download sites for Stereo Radio Cassette Recorder Schamatic diagrams.

    Sirs, Can anyone help me out finding out some sites where I can find a particular model of Japan origin schematic diagrams for stereo radio casset corder of different models. This is needed because, it is required since i am into the field of service & maintenance of these. regards...
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    Simple dB meter driver circuit.

    Sir, I hope I have not clarified properly. Now to be clear I state like this: Like in an analogue multimeter (the needle deflects, in terms of ohms measurement, voltage etc.). So, a dB meter or the so called vu meter is also like that, in which the needle deflects (dancing) in rythms in...
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    Converting CD-ROM Drive to Audio CD Player/MP3 player!!!

    Sir, First of all i express my gratitude for the interest so taken for converting CD-ROM drive into Audio player. But, I need it to convert to MP3, possibly VCD too. The problem is that can the MPEG card, which is readily available in the market be interfaced to CD-ROM's data cable output...
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    TLO74 applications in Graphic Equalizer/Mixer?

    Sirs, Can anyone has the schemetic complete circuit diagram using TLO74 used in Graphic Equalizer or Mic Mixer Circuit? If possible PCB layout is also highly appreciated. If not, at least use of TLO74 as Graphic Eq. or mic. mixer. regards, Shamim_india.
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    Simple dB meter driver circuit.

    Dear Audioguru, thanks for your immediate response. You have sent me the vu meter built around (LEDs). The circuit i need is different. I mean to say that after the pre-amplifier out, it should be connected and the vu meter  called db meter has the needle deflection, not LEDs. I hope you...
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    Converting CD-ROM Drive to Audio CD Player/MP3 player!!!

    Sirs, Any idea on how to convert externally (without having PC), a CD-ROM drive of (Samsung 52x) to audio CD player or possibly MP3 player. Simple Powersupply +12V,Gnd, +5V & Gnd. available? Can MPEG card be wired, if so how? Regards, Shamim-India. ====
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    Simple dB meter driver circuit.

    Sirs, Does anyone have complete schematic or part list required for a simple dB meter driver built around transistor/IC? Regards, Shamim-India. ====
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    Microphone Echo/delay IC datasheet.

    Sir, While thanking you for the reply, it is very cumbersome to get the IC in India and to make a pcb. Rather, I would prefer a simple circuit or complete schematic/pcb layout/component layout with IC datasheet. So, that i can make out a pcb for that and fit it unto my mic input (tape deck)...
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    Design of Stepdown transformer 3 Amp 12VDC from 230V AC mains.

    Sirs, Can anyone help me out finding the design parameters required for making a Stepdown transformer of a rated output of 3 Amp/12VDC from 220V AC mains (in India). viz. AC winding wire turns (swg.), DC winding wire turns (swg), CRGO core type (how to select laminates, which No.), Derive the...
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    Microphone Echo/delay IC datasheet.

    Sirs, Can anyone tell me with datasheet of the easily available Microphone delay/reverbing/echo IC. I need this to fit it unto my Tape Deck at the Mic input? Any suggestions on this front are welcome. Regards, Shamim ====
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    TLO74 ??? Dynamic Mic./Cond.Mic. amplifier.

    thanks a lot to you, Sir for guidance and for keeping updated. regards shamim ====
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    Circuit Diagram Schematic Sites.

    Sirs, I introduce myself as an electronic hobbyist and into the field of repair & maintenance of different branded (Sony, AIWA, Sharp, National) audio products. For this I need often the schematic diagrams of different brands to ease my sorting out problems and ease maintenance etc. Can...
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    Rising (Japan Make, Model: PC-007 Schematic Circuit Diagram

    thanks for the photo of Rising Model: PC007 But, I want the schematic diagram of it. Can you pls. help me out on this front pls.? regards, shamim ====
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    TLO74 ??? Dynamic Mic./Cond.Mic. amplifier.

    Sirs, Can any one guide me designing of a low noise, high gain amplifier used for Cassette Tape Head/Dynamic Mic. /Condenser Mic. amplifer? The complete circuit wired around easy to get (in terms of availability) is solicited. Will TLO74 will meet the above parameter requirements...
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    Difference between rms and PMPO

    Sir, Thanks for the guidance on the above.  Hope to get similar co-operation in future. regards, shamim ====
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    Difference between rms and PMPO

    Sirs, Can anyone clarify the difference between rms value and pmpo calculation, with respect to audio amplifier ICs. ICs datasheet shows 4.5w, whereas the pmpo is written as 40watt. Is it the 10x times of rms? regards, shamim ====
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    Dual Volument Control (Rotate type) B50K 7-legged

    Sir, No. It is not the ground terminal of any metal properties. Because, the circuitry inside the volume control shows some carbon connectivity, as if used as feed back purpose. Any idea on it pls.? regards, shamim
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