JVC RX-F31S Service Manual

Also see for RX-F31S: Instructions Instructions Service manual

(No.MB449)1-133.1.21 Removing the regulator connect board(See Fig.17)• Remove the top cover, tuner, DSP board, master clock board,gate drive-2 board, S.S. setup board, gate drive-1 board, vol ICboard and main amplifier board.(1) From the forward side of the main amplifier board, discon-nect the parallel wire from the connector CN705 on the reg-ulator board.(2) Disconnect the regulator connect board from the main am-plifier board while releasing the claws (n, p) of the connec-tors (CN703, CN704) on the main amplifier board.Note:When releasing the claws (n, p), take care not to break them.Fig.173.1.22 Removing the regulator board(See Fig.18)• Remove the top cover, tuner, DSP board, master clock board,gate drive-2 board, S.S. setup board, gate drive-1 board, vol ICboard, main amplifier board and regulator connect board.(1) From the forward side of the main amplifier board, removethe tie band fixing the wire.Reference:After reassembling, fix the wire with a new tie band asbefore.(2) From the front side of the main amplifier board, remove thetwo screws S attaching the TR bracket to the heat sink.Fig.183.1.23 Removing the regulator connect board(See Fig.19)• Remove the top cover, tuner, DSP board, master clock board,gate drive-2 board, S.S. setup board, gate drive-1 board, vol ICboard, main amplifier board, regulator connect board and reg-ulator board.(1) From the back side of the main amplifier board, remove thefour screws T attaching the FET bracket to the heat sink.(2) Remove the cooling rubbers on the heat sink from the FETbracket and remove the heat sink from the main amplifierboard in the direction of the arrow.Fig.19CN705 Regulator boardMain amplifier boardRegulator connect boardCN704 CN703Main amplifier board Main amplifier boardRegulatorconnect boardRegulatorconnect boardp nTR bracketHeat sink Tie bandRegulator boardSSFET bracketHeat sinkCooling rubbersMain amplifier boardTTCooling rubberAll manuals and user guides at all-guides.com