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Home >> CASIO >> QW1644 (SM552) Service Manual
 
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CASIO QW1644 (SM552)
Service Manual


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

Description of CASIO QW1644 (SM552) 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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Excellent service manual includes everything is need to repair this radio-caseete, how to disassemble, wiring diagram, all , waiting time until the download was only a few hours. I'm going to buy service manuals from here, are cheap and very good.Thank you.
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Found this to be the manual included with the original packinging, was helpfull but did not give any detailed repair instructions.
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Complete service manual, was very helpful in repairing this tapedeck.Thanks.
 AVM930WH WHIRLPOOL Service Manual by Frans Godlewski;
The service manual was a copy of the original from Wirlpool. The quality was good, all neccecary information was available including the service-codenumbers, so I could order the right part to be replaced for repair. Downloding was no probem after the payment. Thanks for the service!

Text excerpt from page 10 (click to view)
6. PRECAUTIONS FOR REPAIR : QW-1619 / 1622 / 1644 6-1. AC (ALL CLEAR) AND REMOVING OF MODULE
1.Perform AC (ALL CLEAR) when inserting a new battery, or else the memories and/ or counters may give erratic displays. Touch the AC contact and the positive (+) side of the battery or main plate with the metalic tweezers. The contact should be made for about two seconds. For 2 seconds after the AC operation, do not make any button operations on these modules. 2.On removing of the module from the case, please insert the precision screw driver between the module and the case pointed by arrows.

Metallic tweezers

6-2. ACCURACY CHECKING
Check the accuracy of the module with the quartz timer after switching the module to "ACCURACY CHECKING MODE". The operations are shown below: A) SWITCHING TO "ACCURACY CHECKING MODE" Keep pushing the D button and continuously push the A , C buttons at the same time at the normal time keeping mode. Then all the segments are displayed and the LCD drive signals are changed to the static drive signal of "32 Hz" so that you can check the accuracy with the quartz timer. B) CANCELLATION OF THE "ACCURACY CHECKING MODE" Push any button except D . Then the display is returned to its original state. NOTE: The "ACCURACY CHECKING MODE" will automatically return to the regular mode in 1 ~ 2 hour(s) without any operation.
QW-1619 / 1644 QW-1622

-9-

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