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SONY BKP-7934
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of SONY BKP-7934 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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I would not plug this machine in without finding a manual like this. In addition to setup and normal operating instructions, it has troubleshooting flowcharts, diagrammed mechanical adjustments, and schematics to beat the band. The tech I hand it to would be thrilled to find solder side PCB diagrams with component outlines superimposed, pinouts for every IC chip, and line drawings of transistors, with labeled legs. As for printing quality, this may be a copy of a copy, but even the finest print when enlarged is very legible. There is a bit of grayed print over a few pages, as if a wet page were placed over it, but the print is still very legible. If you could borrow an original manual and get it printed and bound for 4 to 6 times the cost, you could get better quality. In that case you wouldn't be here. For price, utility, and availability I am rating this manual highly.

Text excerpt from page 16 (click to view)
2-4. Replacing the Backup Battery 2-5. Notes on Repair Parts

2-4. Replacing the Backup Battery
n When replacing the lithium battery, ensure that the marks + and _ are correctly oriented. If connected incorrectly, injuries and damage to objects in the periphery may result from tears and leakage of fluid. The unit is equipped with a battery for data backup (BT1) on the CPU-293 board. When replacing, be sure to use the following specified part. Replacement Part: Part Description: Part No.: BT1/CPU-293 board (E4) CR-2450 (lithium battery) 1-528-229-41

The CPU-293 board incorporates a clock for recording the time and date at which the reference files and scene files were stored in the IC memory card. The backup battery maintains the time of the clock when the power is OFF. Therefore, when data is stored on the IC memory card with worn out battery, the correct time and date will not be recorded. When writing the data in the IC memory card with battery starting to run out, an alarm message will be displayed on the EL display. Replace the battery when this alarm message is displayed. After replacement, set the time and date. (Refer to the operation manual.) Even if the battery runs out, the correct time and date can be recorded by setting the time of the unit before writing the data on the IC memory card.

2-5. Notes on Repair Parts
1. Safety Related Components Warning w Components marked ! are critical to safe operation. Therefore, specified parts should be used in the case of replacement. 2. Standardization of Parts Some repair parts supplied by Sony differ from those used for the unit. These are because of parts commonality and improvement. Parts list has the present standardized repair parts. 3. Stock of Parts Parts marked with �o� at SP (Supply Code) column of the spare parts list may not be stocked. Therefore, the delivery date will be delayed. 4. Units Representation The following represented units are changed or omitted in writing.
Units Capacitance Inductance Resistance uF uH Z Representation uF uH Abbreviation

2-6 (E)

BKP-7934 IMM

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