JBL SUB6
Manual de Servicio

Powered Subwoofer

SUB 6/10

SUB6/10 DISASSEMBLY PROCEDURE
1. 2. 3. 4. 5. Unplug all external connecting cables. Place the subwoofer on a padded surface so that the controls are facing upwards. Remove (2) ¾� Philips screws (S4) holding the control panel in place. Remove (6) ½� Philips screws (S4) holding the heatsink/amplifier in place. Remove both assemblies partially out of the cabinet and rest them on the cabinet surface; no additional connectors need to be removed as this should be sufficient for most servicing, although driver damage may result from using the woofer for a load during testing. Following Page 4 (Driver Function) Step 1 to remove woofer and replace with a 4 ohm 100W Resistor if necessary. For further disassembly - Remove the three remaining molex connectors CN301 or CN301A, CN306 & CN902A from the board(s), cutting the tie wraps holding the cables in place. Remove board assemblies. Turn the subwoofer over so that the input connectors face upward; remove the (8) 1� Philips screws (S2) on the input plate; remove the (2) ½� Philips screws on both sides of the High Level Input Connectors. Pull plate away from the cup and cabinet, exposing components. 9. Removal of power transformer: Remove the ½� plated screws holding the small oval cover inside the input cup; remove cover.

10. Cut the cable tie and remove/cut the wires nuts attaching the transformer wires to the power cord. 11. Pull on entire input assembly, including cup, away from cabinet - there may be enough slack in the wires to expose the inner cabinet and connectors. If not, you must enter through the woofer opening; cut the tie wrap to the gray cable and unplug molex connector CN305B. 12. Unplug molex connector CN901 attaching transformer output wires to inner connector board. 13. Remove (4) Philips machine bolts (S7) holding the transformer to the cabinet; each bolt has a nut (N1) on the inside of the cabinet that should be held with a 5/16� nut driver or wrench. 14. Remove power transformer from cabinet.

6.

7.

Reassembly - follow disassembly procedures in reverse
order, replacing cables ties where cut, and wire nuts when removed.

Sub10 only - when the heatsink/amplifier and control
board is installed, there is a notch in the plastic baffle for the connecting cables between the two surfaces; make sure the connecting cables are routed through this notch or the control panel will not seat properly in its bezel.

8.

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