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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.
X-VH7
CIRCUIT DESCRIPTION
2. DEFAULT STATES
2-1 Main unit default states
ITEM POWER DOLBY R/P REC MUTE LINE MUTE BIAS ERASE REC LEVEL(E. VOL) SOL CPM DIRECTION REVERSE MODE STATE OFF OFF PLAY ON ON OFF OFF -15dB OFF ON(500ms) î OFF FORWARD ENDLESS MODE
3-5 Set inspection test mode
3-5-1 REC/PB inspection Press the REC key: 1REC(4sec.)î 2REVERSE(4sec.) î 3Start PLAY automatically. But press the REC key with recording again, the recording time be extended for 4 sec per one press. 3-5-2 Test mode initializing condition Press the STOP key,then be stopped the mechanism movement. (But no change of the system IC/IC2 setting up) And LEDs display normal with the leaf SW. 3-5-3 REC level changeover Press the CRLS key, changeover REC level. â�¢ LEVEL display: -15dB(LED CRLS blinking)Ãî0dB(LED REV.MODE blinking)
3. TEST MODE
3-1 Setting method
While pressing the FWD key, plug the power cord to the AC wall outlet.(Setting up: MUTE ON) Set up REC level : -15dB All LED lighting, then be cancelled to press a key and insert a tape. Insert a tape or press the STOP key, then LEDs display the leaf SW movement of the mechanism. (ON:LED lighting, OFF:No LED lighting) DOLBY-B: Mistake REC FWD DOLBY-C: Mistake REC REV REV-MODE: PACK DETECT SW CRLS: CrO2 DETECT SW
3-2 Initializing method
While pressing the EJECT key, plug the power cord to the AC wall outlet. Jump out a tape compulsion, then LED STANDBY be blinked and lighted .
3-3 Cancel test mode
1) AC power OFF: initialize and cancel the test mode. 2) Press the PAUSE key ,then be stopped the mechanism and be cancelled the test mode on POWER ON. (No jump out a tape compulsion)
3-4 TEST MODE specifications
1) The keys are activated normal except the test mode indicating key . 2) No mute control by the mode changeover. But mute on by POWER ON/OFF.
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