Ngày 26/07/2010 05:29:59 / Lượt xem: 4386 / Người đăng: biendt
MKĐ âm thanh 50W
1) Sơ đồ khuếch đại
Linh kiện :
R1=4.7 ohm 1/4W R23-25=0.33 ohm / 4W Q8=BD240C
R2-16=47 Kohm 1/4W TR1=5 Kohm T Q10=2N3906
R3=10 Kohm 1/4W C1=330pF NPO Capacitor Q11=BD249C
R4-5=47 ohm 1/4W C2-3-6-7-12-13=100nF 100V MKT Q12=BD250C[separator]
R6=3.3 Kohm 1/4W C4-5-8-14=100uF 63V D1-2=12V 0.5W ZENER
R7-8=2.2 Kohm 0.5W C9=47pF NPO Capacitor D3-4-5=1N4002
R9-15=1 Kohm 1/4W C10-11=100uF 16V D6-7-8-9-10=1N4148
R10=6.8 Kohm 1/4W Q1-2-3=BC550C J1=3pin connector with 2.54mm step
R11-17=1.1 Kohm 1/4W Q4=MPSA56 J2=5pin connector with screws
R12-18-19-20-21-22=220 ohm 1/4W Q5-9=2N3904 F1-2=Fuse2A Fast
R13=330 ohm 1/4W Q6=MPSA06
R14=22 Kohm 1/4W Q7=BD239C
2) Sơ đồ nguồn
+ Linh kiện
TR1=220VAC/2X28V 6A C1=33nF 630V C9-10=15000uF 63V
F1=Fuse 1A Slow C2-3=22nF 100V MKT C8-11=100nF 100V MKT
S1=2X10A SW C4-5=22nF 100V MKT D1-4= rectifier bridge 400V 35A
JF1=3P Connector 3.96mm step C6-7=15000uF 63V