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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.
GM-X922, GM-X1022
22
Three-channel mode, two-way system Connecting the Speaker
wires Output Terminals
The speaker output mode can be two-chan-
1. Expose end of the speaker wires Mid-high (Left) nel (stereo), one-channel (mono), or threeC1
speaker leads suit the mode according to nippers or a cutter. figures on the following pages.
Twist � When connecting to the speaker input, do not connect the RCA output. C1 Mid-high (Right) � When connecting to the RCA input, do not
by about 10 mm and twist using channel (stereo + mono). Connect the
L1 Woofer (Mono)
10 mm connect the speaker input.
Fig.
Two-channel mode (stereo) Three-channel mode, three-way system 2. Attach lugs to speaker wire ends.
Fig. 22 16
Lugs not supplied. High/mid-high
L2 C2
� Use pliers, etc., crimp lugs to wires. C1 (Left) (Left) Woofer/sub-woofer wire Speaker (Mono) (Right)
Lug Mid/mid-bass (Left)
L1
Fig. 17 C2 Mid/mid-bass L2 Fig. 20 (Right)
3. Connect speaker wires to the
High/mid-high
speaker output terminals. (Right) Fig. 23 � Fix speaker wires securely with the termi� Inductors (L1 and L2 in the diagrams) � After pass through the terminal cover, conact as low-pass filters. Capacitors (C1 nect the terminal and C2 in the diagrams) act as high-pass woofer/sub-woofer, and capacitors (C)
Speaker (Mono) are used for the high/mid-high.
One-channel mode (mono)
nal screws.
Terminal screw filters. Inductors (L) are used for the
� Remember when bridging an amplifier it will see only half of the original speaker Terminal cover Fig. 21
wire Speaker impedance. Therefore, you must use
output speakers that have ratings of 4 ohms or terminal higher. If you use speakers that have
Three-channel mode (stereo + mono) damage to the amplifier.
lower impedance ratings it may cause
4. Cover the terminals. but three channels can be achieved by solder them so they cannot be pulled
Fig. 18 channel/one-channel bridgeable amplifier, connected to the speaker wires, secure or
The power amplifier is basically a two� When the inductors and capacitors are
combining the stereo and mono modes loose. Tape or use heat shrink on the using inductors and capacitors. joints to prevent short circuits.
Fig. 19
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