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.
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 :)
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.
Text excerpt from page 6 (click to view)
HTP-120 IDLING ADJUSTMENT
Adjustment of Idling current
1). Cancel the Auto standby ON mode. P604 is short. 2). Connect the DC volt meter to P531. 3). At the no load and no input signal condition. 4). Turn on the power switch. And adjust 0.25mV by trimmer (R544) on Main PC board. 5). After heat run for about 5 minutes, and set 4mV by R544 again.
D911 C912
Printed circuit board view from component side
C911
NCAF-7455
Trimmer
P604
Q623
R544
Q514
Q513
P623
P531
Q516 Q952 Q515
Q951
Q541
DC Volt meter
Setting position of shipping
Output level ---------------------- MIN
