JVC RX-F31S Service Manual

Also see for RX-F31S: Instructions Instructions Service manual

(No.MB449)1-73.1.4 Removing the tuner(See Fig.6)• Remove the top cover.(1) From the top side of the main body, disconnect the cardwire from the connector CN1 on the tuner.(2) From the back side of the main body, remove the twoscrews E attaching the tuner to the rear panel and take outthe tuner.3.1.5 Removing the DSP board(See Fig.6)• Remove the top cover.(1) From the back side of the main body, remove the fivescrews E attaching the DSP board to the rear panel.(2) From the top side of the main body, disconnect the DSPboard from the vol IC board while releasing the claw c ofthe connector CN601 on the DSP board.Note:When releasing the claw c, take care not to break it.(3) Take out the DSP board and disconnect the card wire fromthe connector CN602 on the forward side of the DSPboard.Reference:When attaching the DSP board, align the section d of thespeaker relay board in hole on the DSP board.Fig.63.1.6 Removing the master clock board(See Fig.7)• Remove the top cover.(1) From the top side of the main body, remove the screw F.Reference:When attaching the screw F, attach the holder with it asbefore.(2) Disconnect the connector CN771 on the master clockboard from the main amplifier board in an upward direction.3.1.7 Removing the gate drive-2 board(See Fig.7)• Remove the top cover.From the top side of the main body, disconnect the connectorCN311 on the gate drive-2 board from the main amplifier boardin an upward direction.3.1.8 Removing the S.S. setup board(See Fig.7)• Remove the top cover.(1) From the top side of the main body, remove the tie band fix-ing the wire.Reference:After reassembling, fix the wire with a new tie band asbefore.(2) Disconnect the wire from the connector CN725 on the S.S.setup board.(3) Disconnect the S.S. setup board from the main amplifierboard while releasing the claw e of the connector CN727on the main amplifier board.Note:When releasing the claw e, take care not to break it.Fig.7TunerCN1 CN601CN602DSP boardSpeaker relay boarddRear panel E Rear panel ECN601DSP boardVol ICboardcCN771 CN311CN725Gate drive-2 boardS.S. setup boardHolderMain amplifier boardMaster clock boardTie bandFCN727Speaker terminal boardS.S. setupboard eAll manuals and user guides at all-guides.com