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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.
CTV990503 TELEVISION TECHNICAL BULLETIN
Month of Issue: May 1999 Classification: White Page 1 of 1
MODELS
66AS05H
DV5940H
DV6632H
Common faults on the 4BS-C Chassis
Fault Intermittent tripping Cramping Tripping every five seconds Reason Poor line drive Vertical stage tollerance changes Teletext processor supply pin leaky Possible Cause Q606 C513 open circuit Teletext processor (note that removing the teletext PWB will also result in tripping every five seconds) Dry joints on the scanning coils connections (both ends)
Intermittent failure of the line output transistor
Line stage problems
Disabling of protection circuit To disable the protection circuit, you can remove the opto coupler IC702. However, do be aware that this may cause failure of components if there is a catastrophic fault on the receiver. If you have a fault to add to the above list, please do no hesitate to contact Sharp Technical Support via the Hot Line telephone number.
Sharp Electronics (UK) Limited
Reference AVW280499/3 Revision 1 White � Carry out as required, Yellow � Carry out as required and whenever the unit comes in for service, Red � Carry out on all units
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