Pioneer sic 871 a service manual
This is the 6 pages manual for pioneer sic 871 a service manual.
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Page 1
2 S-IC871A 1234 CD F A B E 1 23 4 1. REASSEMBLY AND DISASSEMBLY PRECAUTIONS 1.1 REMOVAL FROM THE CEILING 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 4 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. Item Grille removal tool Model No. GGP1135 Purpose To remove the grille out Safety belt (not supplied) Fixing bracket Grille removal tool Grille removal tool Rotating clamp Speaker frame Screw Stud/beam
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3 S-IC871A 567 8 5 6 7 8 C D F A B E 1.2 REATTACHMENT TO THE CEILING 1.3 REPLACEMENT OF PARTS 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 4 screws for fixation claws. Lightly pull down the speaker to ensure that the 4 fixation claws have been raised outwards to secure the speaker to the ceiling. Tighten the 4 screws. If a new grill is to be attached, attach 8 pieces of butyl tape, as shown in the figure below, then remove the paper liner. Insert the grill into the frame, by aligning the cutout in the raised part of the back of the grill with the Pioneer logo of the baffle. 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 Network Assy is attached to the frame from the rear of the speaker with 4 screws. To remove it, first disconnect the speaker cables from it then remove the screws. The Speaker Unit is attached with 4 screws. To remove it, first remove the Network Assy then remove the 4 screws. When reattaching, place the Speaker Unit as shown in the photo then attach it. 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