Onkyo T-33 Service Manual

Onkyo T-33 Service Manual covers following topics:

  • How to repair Onkyo T-33 Synthesized FM Stereo/ AM Tuner?
  • How to maintain and fix your Onkyo T-33 Synthesized FM Stereo/ AM Tuner?
  • Specifications, Service procedures, Stringing diagram,
  • Exploded view, Parts list, Block diagram of IC, Packing view,
  • Adjustment procedures, PC board view from component side,
  • Schematic diagram, Printed circuit board-parts list, Block diagram
Onkyo T-33 Synthesized FM Stereo/ AM Tuner Service Manual
Onkyo T-33 Synthesized FM Stereo/ AM Tuner Service Manual
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Onkyo T-33 Service Manual

(Book ID=38413 Added on August 21, 2012) Onkyo T-33 Service Manual covers Repair Guide, Troubleshooting, Parts List, Exploded diagram, Wiring Diagram, Schematics, Assembly and dissembly of equipment. Using Onkyo T-33 Service Manual, you will be able to get answer of common questions regarding equipment  like:
  • How to open and clean Onkyo T-33 Service?
  • How to fix broken Onkyo T-33 Service?
  • How to solve various error codes?
  • How to repair broken parts and various part numbers?
  • What is the meaning of various buttons and indicators on device?
  • How to carry out alignment and routine servicing of your device?
Onkyo T-33 Service Manual by SRmanuals is scanned from original paperback copy of the Onkyo T-33 Service Manual and are guaranteed for high quality scans. We have tried utmost care to make sure completeness of manual. This is the one used by company people for their internal use and hence many of them are copyrighted by respective companies. In real world we hardly see Onkyo T-33 Service Manual in paperback or softcopy and hence we have created this website which will give you access of such a huge collection of service manuals at a rock bottom price. We are slowly increasing availability of service manuals on this website and if you can not find what you are looking for, please contact us and we will be happy to provide you if we can get hold of it. Many people ask us from where do we get all these manuals. Just to clarify, we are a big service provider for almost all electronic items and hence we have server access to majority of company website. These server access are the main resource of our library. We are also looking for any opportunity to exchange both server access and service manuals and anyone interested can contact us. Enjoy your

Onkyo T-33 Service Manual

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Below is example of common troubleshooting you can do using this service manual

PLL tuned circuit of the Onkyo T-33

Operation during MW reception
The reception frequency is applied to the programmable divider where it is divided to 1/N and output as fv. This is applied to the phase comparator where it is comparated with frequency reference fr (10kHz or 9kHz). If fr and fv differ, Eo equal to the difference in frequency is output. Since error output Eo is a pulse waveform, it is passed through the low pass filter to change it into DC voltage VD, which is applied to the variable capacitor diode in the front end to change the reception frequency. This continues until fv and fr are the same and Eo = 0.

Operation during FM reception
The pulse swallow method is used in the prescaler of the T-33. T-33L and T-300. In this type of prescaler. a supplementary number (changed according to the program code input) and the divided reception frequency from the prescaler are combined in the control counter and the prescaler’s division factor is switched 1/30 or 1/32 according to external control (1/32 when the PSC terminal is “H”and 1/30 when it is *’L”).
The station oscillator frequency is applied ot the programmable divider, but the programmable divider has en upper frequency limit of only 30MHz. so the pulse swallow-type prescaler. which can be used up to 150 MHz, is inserted for division to 1/Np;
The signal is applied to the programmable divided and divided to 1/N. The result is compared with a 25kHz frequency reference in the phase detector and the error is output as lio until a match is obtained as in MW operation.

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