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There are currently no product reviews.
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The service was quick and simple, finding the service manual easy and it appears to be the original with colour schematics. It contained the info I was after and so sorted the problem.
I have copied it to CD and attached the envelope to the inside back cover of the owners manual. Good manual and excelent service. Robin Wood, Wood Electronics, New Zealand.
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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 :)
Purity and convergence procedure
Adjustment is necessary only if the CRT or the deflection yoke is replaced or if the setting was disturbed. The complete procedure consists of: 1. Vertical raster shift adjustment. (Only for models with purity/convergence assembly with 4 pairs of rings). 2. Initial static convergence. 3. Setting the purity. 4. Final static convergence.
Vertical raster shift adjustment
(only for models with purity/convergence assembly with 4 pairs of rings). Apply a green pattern with a horizontal line, adjust the deflection yoke so that has no tilt, then secure it. Adjust center line of the pattern with the mechanical center of the CRT, this center is determined by two marks at the side edges of the screen. To adjust the line, once the vertical raster shift tabs are place at 3 o�clock to reduce its magnetic field effect (see Fig. 9 and Fig. 10) open the tabs the same angle from the center, until the center line of the pattern becomes a straight line, centered with the marks of the CRT. (see Fig. 11)
Center line from pattern
When the CRT or the yoke is replaced
Place the yoke on the CRT neck (do not tighten the clamp). Place the vertical raster shift tabs at 3 o�clock (90o from the purity and convergence tabs)
R&B Convergence Rings R&B&G Convergence Rings Purity Rings Centered Over G3/G4 Gap
G3
G4
Mechanical Center Marks
Open the same angle from center
Vertical raster shift tabs
Vertical Raster Shift Ring
Figure 9.
Positioning of purity/convergence assembly (4 pairs of rings)
Figure 11.
Vertical raster shift adjustment (4 pairs of rings assembly)
R&B&G Convergence rings R&B Convergence rings
90o
Vertical raster shift rings
Purity rings
Figure 10.
Positioning of purity/convergence assembly (4 pairs of rings)
Turn the receiver ON. Operate the receiver for 60 minutes using the first purity check field (white screen) to stabilize the CRT. Fully degauss the receiver by using an external degaussing coil. Slide the deflection yoke back and forth on the neck of the CRT until it produces a near white, uniform raster.
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