Yamaha YHT-196 Service Manual

Also see for HTR-2064: Owner's manual

Contents

A B C D E F G H I J123456774HTR-2064/NS-B20/NS-C20/NS-SWP20PJ24 PJ21 PJ22CB3CB2CB1CB21 CB22W1IC2 IC1OPTICAL(TV)MAIN (1) (Side A)POWER TRANSFORMERFRONT+/-SPEAKERS+/-LR+/-+/-LRCENTER SURROUNDSUBWOOFEROUTSUBWOOFERAUDIO2AUDIO1 AUDIO4AUDIO3 AUDIO6AUDIO5L/RL/RCOAXIAL(CD)COAXIALOPTICAL1 19+5DAU1_DAU2_DDGNDAU3_DAU4_DDGNDAGNDADLADRIPENCNCAGNDNCAGNDNCNCAUXEDA_FLDA_FRAGNDDA_CDA_SWAGNDDA_SLDA_SRAGNDNCNCAGNDF_MTC_MTS_MTNCNCTULTUESW_MTR2A_SCKDGNDI_PRTAMP_LMTN_HP_DETNCSPRY_FTHM3+12ANCAGND-12APS_PRT-VPHPLHPEHPRN_HP_DETTURNCR2A_MOSIDGNDDC_PRTAMP_OLVTRANS_RYHPRYSPRY_EXPS_PRTACHACHEEACLACLOPERATION (4)(CB192)OPERATION (4)(CB191)DIGITAL (CB222)OPERATION (2)(CB134)OPERATION (5)(CB166)1 195 k-ohms10 W5 k-ohms10 WRef no. LocationD1 D5D2 D5D3 H5D4 H6D12 I3D13 H3D14 G5D15 C5D16 G4D17 H3D18 G3D19 E5D20 F5D21 D5D22 F5D23 I2D24 H5D25 I3D201 E4• Semiconductor LocationRef no. LocationD202 E3IC1 G6IC2 D6Q1 I6Q2 H6Q3 H5Q4 I6Q5 I5Q6 H5Q7 F5Q8 C5Q9 D5Q10 B5Q11 E5Q12 G5Q13 E5Q22 I2Q23 F4Notes:Safety measures• Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures during servicing, suchas wearing insulating gloves.• Note that the capacitors indicated below are dangerous even after the power is turned off because an electric charge remains and ahigh voltage continues to exist there. Before starting any repair work, connect a discharging resistor (5 k-ohms/10 W) to the terminalsof each capacitor indicated below to discharge electricity. The time required for discharging is about 30 seconds per each.C55, C56 on MAIN (1) P.C.B.Power amplifier IC replacement• When the power amplifier IC (IC 1 or IC 2 on MAIN P.C.B.) requires to be replaced, be sure to refer to “POWER AMPLIFIER ICREPLACEMENT” before its replacement.