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Onkyo TA-2048 Service Manual

Onkyo TA-2048 Service Manual covers following topics:

  • How to repair Onkyo TA-2048 Stereo Cassette Tape Deck?
  • How to maintain and fix your Onkyo TA-2048 Stereo Cassette Tape Deck?
  • Specifications, Service procedures, Mechanism operation, Alignment procedures,
  • Exploded view, Mechanism-exploded view, Printed circuit board view,
  • Schematic diagram, Printed circuit board-parts list, Block diagram,
  • Circuit description, Component location, Packing procedures
Onkyo TA-2048 Stereo Cassette Tape Deck Service Manual
Onkyo TA-2048 Stereo Cassette Tape Deck Service Manual
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Onkyo TA-2048 Service Manual

(Book ID=38551 Added on August 24, 2012) Onkyo TA-2048 Service Manual covers Repair Guide, Troubleshooting, Parts List, Exploded diagram, Wiring Diagram, Schematics, Assembly and dissembly of equipment. Using Onkyo TA-2048 Service Manual, you will be able to get answer of common questions regarding equipment  like:
  • How to open and clean Onkyo TA-2048 Serv?
  • How to fix broken Onkyo TA-2048 Serv?
  • 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 TA-2048 Service Manual by SRmanuals is scanned from original paperback copy of the Onkyo TA-2048 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 TA-2048 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 TA-2048 Service Manual

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

Input Port Expander IC of the Onkyo TA-2048

The equivalent circuit of the LC7800 used to expand input ports is shown in Figure 1. This IC includes four 4-bit input ports, one 4-bit output port, and one 4 bit selector input port. When BA of the selector input is set to LOW and the other bits to HIGH, the AO” Al” A2″ A3 input port is connected to the DO” Di” D2″ D3 output port. And if only the BB bit is set to LOW, the BO” Bi” B2″ B3 input is selected. Hence, a LOW level signal is applied to the selector port bits in cyclic order, and the operation indicator LEDs are switched on and off dynamically in combination with the #13, #14, and #15 LED output ports while input port data is being read out.

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