Sunday 7 October 2018

Sony DVD receiver DAV-DZ77T – Power amplifier and SMPS circuit diagram – Brazilian model


Using ICS - CXD 9883M, CXD9788AR, LC890561W, MR4020-7103 (SMPS control)
This system incorporates the matrix surround sound decoder adaptive Dolby * Digital and Dolby Pro Logic (II) and DTS ** Digital Surround System. In some cases, CD-R / CD-RW / DVD-R / DVD-RW / DVD + R / DVD + RW discs can not be played on this system due to the quality of the recording or the physical condition of the disc, or characteristics of the recording device and the authoring program.  Also, the disc will not play if it is not finalized correctly. For more information, refer to the operating instructions of the recording device.  Note that some playback functions may not work with some DVD + RWs / DVD + Rs, even though they have been finalized correctly. In this case, watch the contents of the disc using playback. Also, some DATA CDs / DATA DVDs created in Packet Write format can be played back. This system is designed to play discs that conform to the standard of discs compact discs (CD). Recently, several music discs encoded with rights are being marketed by some manufacturers. However, it should be noted that, between these types of discs, there are those that do not conform to the CD standard, and are not possible to reproduce in this system.
• This system can play Multi Session CDs when an MP3 file is recorded in the first session. Any other MP3 file recorded in subsequent sessions can also be played back. • This system can play Multi Session CDs when a JPEG image file is recorded in the first session. Any other JPEG image file recorded in the can be played back.
• If MP3 files and JPEG image files in the music CD or video CD format recorded in the first session, only the first session will be played back.
This system plays DVDs from REGION 4 according to the indication located on the back of the the appliance.  DVD VIDEOs with the indication can also be played on this system. If you DVD VIDEOs with other region codes, the [Playback prohibited by area limitations.] will appear on the the TV screen. Some DVD VIDEOs may not display the region code, even if their reproduction is prohibited by area limits.
SMPS Schematic and PWB

Power amplifier schematic

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