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IV. AMP1000 Stereo assembly 
 

 

 
 
 
 

Summary of Contents for P1000

Page 1: ...1 P1000 AMP stereo and mono SERVICE MANUAL Rev 1 0 For more information on YBA products please visit www yba fr For support on YBA products service or spare parts please contact service yba fr...

Page 2: ...TS 1 Schematic of the amplifier PCB p 3 2 Layout of the amplifier PCB p 4 3 Assembly of the amplifier PCB p 6 4 AMP1000 Stereo assembly p 8 5 AMP1000 Mono assembly p 9 6 Bias setting p 10 7 Known issu...

Page 3: ...3 I Schematic of the amplifier PCB...

Page 4: ...4 II Layout of the amplifier PCB Part list Capacitor 150pF x3 R SETA 0 56W x16 R SETA 10W x2...

Page 5: ...0 F 100V x3 Capacitor 0 1 F x1 Capacitor 0 33 F x7 Capacitor 100 F 100V x5 Capacitor 470 F 63V x2 Notes Output transistors should be matched in gain before replacement Good matching makes bias and off...

Page 6: ...l grease as shown in the previous image 3 join both aluminium and brass plates 4 insert transistor isolation plates on each sides 5 fix the amplifier PCB on the upper side using the 4 screw holes 6 in...

Page 7: ...e of the supply board connect 2 white wires from IN_GND pad to the GND side of the supply board middle point of the transformer connect 4 red wires from Speaker output pads to the output inductance pr...

Page 8: ...8 IV AMP1000 Stereo assembly...

Page 9: ...9 V AMP1000 Mono assembly...

Page 10: ...10 VI Bias setting...

Page 11: ...ed between approx 500 and 900 If the value is not stable then one or more output transistor need to be changed To determine which transistor need to be changed you need to 1 remove T7 T9 and T10 2 tes...

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