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Exactly as described, a Service Manual complete with the schematics and PCB layout delivered in a timely manner. Many thanks for the great service.
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some of the writing is a bit blur but the part in the schmatic was great and i have fixed the machine thanks
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Well.. I'd searched for this manual and although I found many copies online I was pleased to find your website with a well balanced pricing system and easy to search and follow links. That together with the very quick response time was just what I was looking for.. being a very impatient tech.. ;-) I had the service manual in front of me within a short time.
Bookmarked.. and you can bet I will always come here first for my service & user manuals..
best regards
Ed(Tony) Foley
G7WHK
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I will definitely be back for more information when I need it.
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The service manual when downloaded and printed out was clear and easy to read. I would have liked to have been able to enlarge some details, but this was not possible as the file permissions did not allow this. The service was very good. The time taken from placing my order to downloading the document was only a few minutes.
2.2 SYSTEM BLOCK DIAGRAM A sample system block diagram for the MT1379 DVD player board design is shown in the following figure:
3. AUDIO OUTPUT
The ZR36768 supports two-channel to eight-channel analog audio output. This version has twochannel output. The ZR36768 also provides digital output in S/PDIF format. The board supports both optical and coaxial SPDIF outputs.
4. AUDIO DACS
The ZR36768 supports several variations of an I2S type bus. The I2S format uses four stereo data lines and three clock lines. The I2S data and clock lines can be connected directly to one or more audio DAC to generate analog audio output. The two-channel DAC is a Cirrus Logic CS4392. The DACs support up to 192kHz sampling rate. The outputs of the DACs are differential, not single ended so a buffering circuit is required. The buffer circuit use a National LM833 op-amp to perform the low-pass filtering and the buffering.
5 .VPU - VIDEO PROCESSING UNIT
The VPU is responsible for all video output processing and timing. It outputs 8 bit (CCIR 656 type) digital interlaced video and separate syncs. It can also output interlaced composite, S- or component analog video, or progressive components analog video. The VPU units have two operating modes: Interlaced when the output is interlaced and Progressive when the output is progressive. A two fields Deinterlacer can be used (as needed) for the decoded image. The VPU has a sync generator and output unit. The sync signals are used by the sync receiver unit to generate all video timing for all other VPU units and timing signals for the CPU and PDU.
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