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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.
SJ-25P
(4) As a reference to determine the causes of trouble, malfunction and phenomena are described below. Refer to the following when repairing. 1. Disconnection of Defrost heater As off-cycle defrosting is performed, the defrosting time is extremely prolonged. Each time defrosting is started, the freezer temperature rises and a portion of ice and stored foods are melted. 2. Melted Thermo. fuse or opened-circuit due to the defect of Defrost thermostat. When the above mentioned trouble occurs in cooling operation, the timer motor does not run, defrosting will not take place, and consequently freezing is caused. In the above mentioned condition, when the timer shaft is turned by hand to defrost, the timer motor runs during the operation time. However, the motor stops from the time when the contact is changed, and freezing causes. NOTE: As Thermo. fuse assembly is intended to prevent dangers, do not use it under shorted condition even for a short period. 3. When Defrost thermostat failure causes the circuit to remain closed. The thermostat assembly connected with Thermo. fuse in the same way. A portion of ice or stored foods are melted when Thermo. fuse is worked.
3. DEW PREVENTION The hot pipe, namely D.P.-condenser, is arranged around the flange part of cabinet and the C-partition plate, preventing dew from being generated on the cabinet. NOTE: D.P.-condenser pipe may be felt hot if touched by hand while the compressor is in operation. If you are asked about this, please explain that the hot pipe serves to prevent the dew generation.
Hot pipe
Fig. F-7 4. INSPECTION OF INITIAL STARTING (1) Inspection of cooling unit 1. Set the temperature control knob to "MAX" and check that the compressor starts to operate. 2. Depress the door switch to run the fan and check that cool air is blown out of the cold air outer of the freezer and the refrigerator. 3. When the compressor does not work, check that the timer is not set to "defrost" position. 4. It takes about an hour and a half or 2 hours to put food in the refrigerator after starting operation. NOTE: After return the temperature control knob to "MED" position. When the refrigerator is operated initially after installed,the compressor may vibrate excessively for 1 to 2 min. However, vibration becomes normal if it is continuously operated. (2) Inspection of defrost device Operate the refrigerator for 20 to 30 min. and then check the defrost device in the following procedures : Allow 5 min. to restart the compressor since immediate starting after stopping will cause unsmooth operation. 1. Turn the timer shaft clockwise with a screw driver. At this time, make certains the timer clinks and the compressor stops. 2. After more than 5 min., turn the shaft further to operate. Make certain cooling operation is started again.
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