Service Manual
Page 1
..., or establish a principle-agent relationship of this buss). WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may result in the unit (heavy gauge black wires connect to this manual to perform as specified. This ... and safety procedures when servicing this product may have therefore not been restated. STEREO AMPLIFIER A-S2000 SERVICE MANUAL A-S2000 IMPORTANT NOTICE This manual has been provided for the use of YAMAHA are subject to retrofit. WARNING: Failure to exist, please contact the distributor's Service...
..., or establish a principle-agent relationship of this buss). WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may result in the unit (heavy gauge black wires connect to this manual to perform as specified. This ... and safety procedures when servicing this product may have therefore not been restated. STEREO AMPLIFIER A-S2000 SERVICE MANUAL A-S2000 IMPORTANT NOTICE This manual has been provided for the use of YAMAHA are subject to retrofit. WARNING: Failure to exist, please contact the distributor's Service...
Service Manual
Page 2
... the lead free solder is imperative to cause cancer, or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER ...181;F. When soldering, do not inhale solder fumes or expose eyes to those originally installed. 2. I TO SERVICE PERSONNEL 1. A-S2000 I FRONT PANEL A-S2000 (U, C, R, T, K, A, B, G, L, J models) A-S2000 2 About lead free solder All of the lead solder, be sure to use one of lead free solder currently available, it...
... the lead free solder is imperative to cause cancer, or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! WALL OUTLET EQUIPMENT UNDER TEST AC LEAKAGE TESTER ...181;F. When soldering, do not inhale solder fumes or expose eyes to those originally installed. 2. I TO SERVICE PERSONNEL 1. A-S2000 I FRONT PANEL A-S2000 (U, C, R, T, K, A, B, G, L, J models) A-S2000 2 About lead free solder All of the lead solder, be sure to use one of lead free solder currently available, it...
Service Manual
Page 9
... B 70 JHʣ C 4 JHʣ D 5 JHʣ E 6 JHʣ F ʠ108&30/0 0/ʹ͠·͢ɻ G ʠ1)0/0 H JHʣ A-S2000 * When installing the knob unit, it is turned off because an electric charge remains and a high voltage continues to remove the knob VOL unit. (Fig. 1) b. The time required for removal of Front...
... B 70 JHʣ C 4 JHʣ D 5 JHʣ E 6 JHʣ F ʠ108&30/0 0/ʹ͠·͢ɻ G ʠ1)0/0 H JHʣ A-S2000 * When installing the knob unit, it is turned off because an electric charge remains and a high voltage continues to remove the knob VOL unit. (Fig. 1) b. The time required for removal of Front...
Service Manual
Page 50
...+33V AGND -33V 60GND FRONT (11) (CB34) Vioret White Vioret Blue Brown Black Red POWER TRANSFORMER POWER TRANSFORMER • Semiconductor Location Ref no . A B A-S2000 1 MAIN (3) P.C.B. (Side A) 2 3 POWER TRANSFORMER Blue Brown Black Red RED Black RED 4 POWER TRANSFORMER 5 HP GND HP GND HP GND MAIN (2) (...and are dangerous even after the power is about 30 seconds. 1. The time required for discharging is turned off because an electric charge remains and a high voltage continues to exist there. Before starting any repair work, perform discharge by connecting a discharge resistor...
...+33V AGND -33V 60GND FRONT (11) (CB34) Vioret White Vioret Blue Brown Black Red POWER TRANSFORMER POWER TRANSFORMER • Semiconductor Location Ref no . A B A-S2000 1 MAIN (3) P.C.B. (Side A) 2 3 POWER TRANSFORMER Blue Brown Black Red RED Black RED 4 POWER TRANSFORMER 5 HP GND HP GND HP GND MAIN (2) (...and are dangerous even after the power is about 30 seconds. 1. The time required for discharging is turned off because an electric charge remains and a high voltage continues to exist there. Before starting any repair work, perform discharge by connecting a discharge resistor...
Service Manual
Page 63
... DC offset -0.5 -1.0 -20.9 0 -21.8 -53.1 -53.1 -53.1 -53.1 CB77 CB78 0.5 -45.0 -45.6 -1.0 -45.0 -45.5 -21.8 -39.8 -45.0 -57.2 9 MAIN (2) K L M N A-S2000 To POWER TRANSFORMER To POWER TRANSFORMER CB24 W317 W103 CB21 AC89.5 -61.0 61.1 CB22 AC48.5 W104 -32.2 32.2 To POWER TRANSFORMER AC38.5 AC38.5 AC38.5 CB26...wearing insulating gloves. • Note that positions indicated below are dangerous even after the power is turned off because an electric charge remains and a high voltage continues to MAIN (3)_W315 Note) Those parts marked with "#" are not included in this...
... DC offset -0.5 -1.0 -20.9 0 -21.8 -53.1 -53.1 -53.1 -53.1 CB77 CB78 0.5 -45.0 -45.6 -1.0 -45.0 -45.5 -21.8 -39.8 -45.0 -57.2 9 MAIN (2) K L M N A-S2000 To POWER TRANSFORMER To POWER TRANSFORMER CB24 W317 W103 CB21 AC89.5 -61.0 61.1 CB22 AC48.5 W104 -32.2 32.2 To POWER TRANSFORMER AC38.5 AC38.5 AC38.5 CB26...wearing insulating gloves. • Note that positions indicated below are dangerous even after the power is turned off because an electric charge remains and a high voltage continues to MAIN (3)_W315 Note) Those parts marked with "#" are not included in this...
Service Manual
Page 67
....MTR : POTENTIOMETER WITH MOTOR VR.SW : POTENTIOMETER WITH ROTARY SW VR.SLIDE : SLIDE POTENTIOMETER VR.TRIM : TRIMMER POTENTIOMETER 67 A-S2000 AAX60720: CHIP RESISTOR SAMPLE BOOK ˔ s 9$)*13&4*45034".1-�, ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS: C.A.EL.CHP : CHIP...CUP : CUP TIGHT SCREW SCR.TERM : SCREW TERMINAL SCR.TR : SCREW,TRANSISTOR SUPRT.PCB : SUPPORT,P.C.B. A-S2000 I REPLACEMENT PARTS LIST • ELECTRICAL COMPONENT PARTS WARNING G Components having special characteristics are marked s and must be replaced with parts having specifications ...
....MTR : POTENTIOMETER WITH MOTOR VR.SW : POTENTIOMETER WITH ROTARY SW VR.SLIDE : SLIDE POTENTIOMETER VR.TRIM : TRIMMER POTENTIOMETER 67 A-S2000 AAX60720: CHIP RESISTOR SAMPLE BOOK ˔ s 9$)*13&4*45034".1-�, ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS: C.A.EL.CHP : CHIP...CUP : CUP TIGHT SCREW SCR.TERM : SCREW TERMINAL SCR.TR : SCREW,TRANSISTOR SUPRT.PCB : SUPPORT,P.C.B. A-S2000 I REPLACEMENT PARTS LIST • ELECTRICAL COMPONENT PARTS WARNING G Components having special characteristics are marked s and must be replaced with parts having specifications ...