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There are currently no product reviews.
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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.
3. PickUp Head Initial Postion
PickUp Head Initial Postion 1. Move Pick Up Head to inner diretion until pin5 of MJ4="L" 2. If pin5 of MJ4="L", then move Pick Up Head to outer diretion for a short time. 3. Ture On the Laser of Pick Up Head to judge that disc is presence or not.
3
Does Pick Up Move to inner direction?
N
Is pulse of 2.5 +-2.5V developed at pin3,4 of MJ4?
Y
Check connection between PCB and MECHA
N Y Check peripheral circuit of DU3 and MU9 Check BUS line between DU3 and DU5 Check connection between PCB and MECHA
Is pulse of 2.5 +-2.5V developed at pin13 of DU3?
Y
N
Does Pick Up Move to out direction again? Y Does Laser Turn On? N
N
Is pin5 of MJ4 = "L" appeared? Y
Check line between DU3 and MJ4
N
OK
Check voltage at pin17 of RCN1 is about 2.5V? N
Check BUS line between RU1 and DU3,DU3 and DU5
Y
Replace Pick Up Head
Samsung Electronics
9-11
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