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Exactly what was needed to assess the product - excellent value and great service
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Nice to have the service manual for the Sony DCR-TRV345E now. The document is of excellent quality.
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MACKIE HR824 26 pages English-only Service Manual contains:
1) HR824 technical overview with the description of front and rear panel switches.
2) HR824 specs
3) Block Diagram
4) Wiring Diagram
5) Packaging management
6) Spare part & final assembly list (for PCB rev A and B) + exploded view
7) Test Procedures (where, how to measure voltage...) including Test Point diagram on the PCB.
8) IC and Transistor charts.
Excellent guide: very clear, good scan quality enabling us to print readable diagram :-)
Note:
Mackie HR824 make extensive use of surface mount devices (SMD). Service on the HR824 must
only be undertaken by experienced service technicians with the right tools, experience and patience to perform surface mount rework when needed.
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This Service manual is very well scanned and its clean to read, no any anti-theft words that un-english could understand. I got my CCD600 working with this manual and it´s clear shematics :)
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I was very pleased with the service provided and was surprised at how good the quality was of the manual. I thought it may be a third generation copy or so, but it is as good as the websites that charge 3 times this much. I repair some electronics for family and friends without charge, so this is perfect for me. Thank you very much.
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7.1.6 OUTLINE OF THE WAVEFORMS RECEIVED BY THE DSP SECTION
A
The illustrated signal waveform is an example of the signal waveform when a Dolby Digital (Fs = 48 kHz) signal is received. It must be noted that a frequency (waveform period) other than that of the Master clock supplied to the DSP section changes depending on the format of input signals or mode of the unit. It must also be noted that the waveform being observed changes depending on the environment of the measurement system (high-frequency characteristics of an oscilloscope or a probe, grounding method, etc.). (The numbers 1-9 of the waveform names correspond to those of the waveform data and those in the clock flowchart.)
S/PDIF signal waveforms
� Flow indicated with " " in the clock flowchart Aperiodic rectangular-wave signal 1 COAXIAL or demodulator input: Amplitude of approx. 5 Vp-p (when the signal is input to IC101) 2 OPTICAL input: Amplitude of approx. 4 Vp-p (when the signal is input to IC101) 3 OPTICAL output: Amplitude of approx. 3.3 Vp-p (when the signal is output from IC101) In the following waveforms, the amplitude of all clocks is approx. 3.3 Vp-p.
B
Audio data waveform
� Flow indicated with " " in the clock flowchart Aperiodic rectangular-wave signal 4 Audio data waveform
Audio bit clock waveform
C
� Flow indicated with " " in the clock flowchart Aperiodic rectangular-wave signal 5 Bit clock waveform
Audio L/R clock waveform
� Flow indicated with " " in the clock flowchart Aperiodic rectangular-wave signal 6 L/R clock waveform (except 2nd DPS) Waveforms of the lines other than those supplied to the second DSP 7 L/R clock waveform (2nd DPS) Waveforms generated in the block that supplies signals to the second DSP
Audio master clock waveform
D
� Flow indicated with " " in the clock flowchart Aperiodic rectangular-wave signal 8 Master clock waveform (for Audio signal)
DSP master clock waveform
� Flow indicated with " " in the clock flowchart Aperiodic rectangular-wave signal 9 Master clock waveform (for DSP) Only this clock operates on a fixed frequency: 12.5 MHz (80 ns).
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VSX-59TXi
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