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There are currently no product reviews.
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It's complete and helpful manual with good quality of scan. Thanks very much.
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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.
7)
Staple motor (FFSM) drive circuit
Staple motor (FFSM)
This circuit controls rotation/stop and the rotating direction of the staple motor (FFSM), and is composed of the CPU (IC10) and the FET (Q10, 11, 12, 13). The DC motor is controlled with the staple motor (FFSM) drive normal rotation signal, the reverse rotation signal, and the brake signal outputted from the CPU (IC10-5, 8, 9pin). To protect the motor and the mechanism, the current limit circuit is provided, which supplies the motor drive OFF signal when the current flowing through the detection resistors R78 and R79 exceeds 3.8A, restricting the current not to exceed 3.8A. 8) Tray motor (FTLM) drive circuit 9) Fan (FFAN) drive circuit
Tray motor (FTLM)
Fan (FFAN)
This circuit controls the tray motor (FTLM) rotation, stop, and rotating direction, and is composed of the CPU (IC10) and the DC motor driver IC (IC19). The CPU (IC10-69, 70pin) outputs the tray motor (FTLM) drive normal rotation signal, the reverse rotation signal, and the brake signal to control the DC motor. In addition, the current limiting circuit is formed with R129, R130, R131, and R132 for the current flowing through the motor not to exceed 0.65A.
This circuit controls the fan (FFAN) rotation, stop, and rotating direction, and is composed of the CPU (IC10) and the digital transistors (Q14, Q18). The DA converter (IC11-13pin) outputs the fan (FFAN) drive signal to drive the motor. The fan lock signal is inputted through the noise filter of R168 and C130 to the CPU (IC10-20pin) by the open drain output of the fan built-in circuit. The logic of the signal inputted to the CPU is H when locked.
MX-FNX1/MX-PNX1 ELECTRICAL SECTION 10 � 6
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