Sharp GF-777 Disassembly Instructions Manual Download Page 6

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Almost there. To the far right of the boombox, there is another connector by one of the woofers.
Disconnect this plug.

Now, I cannot stress this enough - VERY CAREFULLY!!! - lift and remove the complete bracket
housing from the inside of the boombox. Do not force anything at this point. If something is caught,
find out what it is before continuing.

Summary of Contents for GF-777

Page 1: ... RE BELTING REPAIR OF NON FUNCTIONAL FF REW INSTRUCTIONS PHOTOS BY BOBBY JENKINS AKA FATDOG www stereo2go com Except where noted Note Some of the pictures didn t turn out great but they should be good enough to get you through the process ...

Page 2: ...ne them up in the order I took them off of the boombox Turn the boombox around and remove the screws holding the boombox together If you do this part right all of the screws will stay in their respective holes Just in case the threads are slightly different for each screw you lessen the possibility of wearing out the threaded posts ...

Page 3: ...First there are two wires for the antennas that need to be disconnected Take note of the colors of the wires and which post the wires went to At the bottom of the case there is a plug for the power lead Disconnect this plug You can now CAREFULLY remove the back of the boombox completely and set aside ...

Page 4: ... by the arrows Remove the far right screw It will be a long screw with a washer Remove the screw located at the top of the boombox where the arrow is pointing Finally remove the screw at the bottom of the vertical black speaker connector block Also remove the metal bar that holds the headphone and mic boards in place ...

Page 5: ... the back Remove the screws for the metal plate and the power switch Back on the vertical black speaker connector block there are some plugs on the left underside Disconnect the plugs as indicated by the arrows One should have blue and purple wires The other should have yellow and black wires ...

Page 6: ...ector by one of the woofers Disconnect this plug Now I cannot stress this enough VERY CAREFULLY lift and remove the complete bracket housing from the inside of the boombox Do not force anything at this point If something is caught find out what it is before continuing ...

Page 7: ...d be an excellent time to clean out some dust bunnies and general nastiness from the front cover There are five screws holding the tape deck mechanism to the plastic housing Four of the screws are rather obvious ...

Page 8: ...st screw holding the tape deck mechanism There is also a plug not pictured directly underneath the input connector block Disconnect the plug after removing the screws for the block Next disconnect the plugs as indicated by the blue arrows in the picture below Also it might help to loosen the square PC board above the plugs by GENTLY prying back the catching posts as indicated by the purple arrows ...

Page 9: ...his example I ve already replaced that belt So in order to keep tension on the belt I decided to loop it onto one of the front switches Believe me this will definitely help Now that the tape counter belt is disconnected you can lift out the actual tape deck mechanism BE VERY CAREFUL There is an extension that is hooked onto a black plastic arm underneath the dial faceplate You will have to work th...

Page 10: ... the tape decks are out flip them over and remove the screws as indicated in the picture below The three screws on the right side of the picture might not have to be removed but it made things easier for me ...

Page 11: ...We finally reach the belts Remove all the old belts and CAREFULLY turn the tape decks over You will need to remove the flywheels without losing the little washer that slides over the posts ...

Page 12: ...y attention to that on reassembly Now that the flywheels are removed clean the small idler wheels that were hidden There are two idler wheels for each tape deck It probably wouldn t hurt to clean the plastic on the flywheel too Once the idlers are clean inspect the entire tape deck mechanism for dust dirt and general grime Clean it now before reassembly ...

Page 13: ... sure that the square belts are not twisted Reattach the tape deck plate with the motors and use a small hook to release the flat belt off the plastic posts and onto the motor spindles Be very careful and don t scratch the PC board Photo courtesy of Frank Jiang aka FYJ2972 Continue reassembling the boombox by retracing the steps outlined in this tutorial reverse order of course Double check all pl...

Page 14: ...player at the same time until the tracks were matched as closely as possible When you have an extremely slow phasing effect when the two sources seem to cancel each other out you ve got a tape speed that will be very close to true To adjust the azimuth for the play head first remove the faceplates from the cassette doors You will notice under the tape door there are a couple of small holes maybe t...

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Sharp GF-777, Disassembly Instructions Manual

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