AV SURROUND RECEIVERR-V251SERVICE MANUAL© 1999-8/B51-5562-00 (K/K) 179270%Caution : No connection of ground line if disassemble the unit.Please connect the ground line on rear panel, PCBs, Chassis and someothers.* Refer to parts list on page 25ON/STANDBYPHONESINPUT TAPE 2(MONITOR)TA/NEWS/INFO. DISP. AUTO A.MEMO BANDPTYCLOCK MODETIMERSETTUNINGMODE MULTI CONTROLLEVELVOLUME CONTROLDOWN UPAV SURROUND RECEIVER R-V251R D SEONSYSTEMCONTROLFRONT SURROUND CENTERSUB WOOFERSUB WOOFERPRE OUTREAR FRONTCENTERSPEAKERS( 6-16Ω )UNSWITCHED TOTAL150W MAX.AC 230V 50HzANTENNAAMFM 75ΩGNDTAPE 2(MONITOR) TAPE1 / MDCD AUXINRECVCRPLAYREC PLAY REC PLAYRLLAUDIOVIDEOVCRREC OUTMONITOROUT DVDVCRPLAY INLRR L C1 31015 17 1912112 IN49 5 75 7DVD 6CH./2CH.INPUTR16 18 202243313339373534 3236 38 40Panel dressing(A21-3777-03) Window(B10-2367-02) Panel *(A60-)Knob(k29-6727-04)Button(R) *(K29-)Button(L)(K29-6816-02)Phono jack(4P)(E63-0186-08) Phono jack(6P)x2(E63-0187-08)Lock terminal board(E70-0120-08)Phono jack(E63-1137-08) Phono jack(6P)(E63-1136-08) AC outlet *(E03-)Lock terminal board(E70-0119-08) Power cord bushing(J42-0346-08)Metallic cabinet(A01-3750-08)Lock terminal board(E21-0034-08) Phono jack(4P)(E63-1152-08) Phone jack(E11-0188-05)AC power cord *(E30-)