Pioneer sic 692 a service manual
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Extracted text from pioneer sic 692 a service manual (Ocr-read)
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2 S-IC691A 1234 CD F A B E 1 23 4 1. REASSEMBLY AND DISASSEMBLY PRECAUTIONS To remove the speaker from the ceiling, remove the grill first. (The grill is press-fit into the frame, with pieces of butyl tape used together.) To remove the grill, hook the special tool for removing the grill to the holes located at the periphery of the grill, pull the tool down so that the grill is displaced from the frame, then remove the grill. While one person is holding the speaker, loosen the 6 screws that secure the speaker to the ceiling until the fixation claws fall inwards. If a screw is completely removed, it can be returned to its original position. If the fixation claws get stuck and do not fall inwards, waggle the speaker as if turning it, by holding its frame, then remove it from the ceiling. As the speaker is retained to a beam, etc. with a safety belt, remove it. Be sure to note the combination of colors of the speaker cables and input terminals so that the cables can be connected to the proper terminals during reattachment. Disconnect the speaker cables from the input terminals. (For removal, while pushing the button of an input terminal, pull out the speaker cable.) Be sure to note the location of the Pioneer logo for confirmation of the orientation of the speaker for later reattachment. Ensure that the entire periphery of the grill is pulled down evenly with the same force. If you pull only a certain location forcibly, the grill may be deformed. If butyl tape trails down from the frame, detach it from the frame, crumple it into a ball, and attach it to the place with a marking inside the raised part of the grill. Note : Be sure to carefully remove the speaker with two people, as the speaker may fall. The speaker weighs 4.7 kg. Item Grille removal tool Model No. GGP1135 Purpose To remove the grille out Safety belt (not supplied) Eye bolt Grille removal tool Grille removal tool Rotating clamp Speaker frame Screw Stud/beam 1.1 REMOVAL FROM THE CEILING
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3 S-IC691A 57 6 8 5 6 7 8 C D F A B E Reattach the safety belt as it originally was attached. Connect the speaker cables to the speaker. At this stage, check that sound is properly output. With the fixation claws fallen inwards, insert the speaker into the ceiling, then lightly tighten the 6 screws for fixation claws. Lightly pull down the speaker to ensure that the 6 fixation claws have been raised outwards to secure the speaker to the ceiling. Tighten the 6 screws. If a new grill is to be attached, attach 6 pieces of butyl tape, as shown in the figure below, then remove the paper liner. Insert the grill into the frame, with the cutout in the raised part of the back of the grill facing the centerline of the speakers. Be sure to push the periphery of the grill until it stops. If you push on the center of the grill, it may be deformed. The LPF Network Assy with a fastener and packing attached is attached to the frame with two screws. To remove the LPF Network Assy, disconnect the cables of the HPF Network Assy then remove the two screws that secure the LPF Network Assy to the frame. To replace the LPF Network Assy, first remove the screws and nuts that secure the fastener. Then attach a new LPF Network Assy, using the removed screws and nuts, then reinforce the screws and nuts with rubber-based adhesive. Adhere the packing to the PCB board. The HPF Network Assy is attached to the inside of the CST chamber with two screws (CST subframe, fastener, and frame secured together). To remove the HPF Network Assy, first remove the CST speaker (midrange/tweeter), CST subframe, and acoustic absorbents, then remove the LPF Network Assy from the frame. Then disconnect the cables from the LPF Network Assy, remove the model label, then pull out the cables toward the inside. To replace the HPF Network Assy, first remove the screws and nuts that secure the fastener. Then attach a new HPF Network Assy, using the removed screws and nuts, then reinforce the screws and nuts with rubber-based adhesive. Adhere the packing to the PCB board and cables. When reassembling the HPF Network Assy, reinforce the sealing packing for cables and the frame with rubber- based adhesive. The CST speaker (midrange/tweeter) is attached with 4 screws from the outside. The CST subframe is attached with 2 screws from the inside and 5 screws from the outside. As three types of screws are used, be careful when reassembling. The Level Control Assy is attached to the CST subframe. To remove the Assy, remove the CST speaker and CST subframe first. The Woofer is attached with 6 screws from the outside. To remove it, first remove the CST speaker. If it is difficult to remove the cables connected to the Woofer, remove the LPF Network Assy first, then remove the cables connected to the Woofer. When reattaching the Woofer, place the Woofer so that the terminal board faces the inside. Be sure to reconnect the cables as they were originally connected, paying attention to the combination of colors of the cables and the input terminals. After connection, lightly pull the cables to ensure that they are securely connected. Make sure that the wires of a cable do not protrude from the terminal and come into contact with other wires. Adjust the speaker position so that the Pioneer logo is located as it originally was. When using an electric screwdriver, gradually increase the torque setting from the minimum value until a value with which a screw starts rotating is reached, then tighten the screw. Tolerable maximum torque: 1.0 N·m Make sure that no screw is loose and that there is no gap between the ceiling and the frame. Butyl tape Mark Cutout 1.2 REATTACHMENT TO THE CEILING 1.3 REPLACEMENT OF PARTS