Cayin-A55-int-sch维修电路图 手册.pdf

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1、12345678 A B C D 87654321 D C B A Title NumberRevisionSize A2 Date:23-Mar-2016Sheet of File:H:?A-50T-VER3.0.DdbDrawn By: R1 1M R2 1K R4 2W100K C1 630V0.1UF R3 1.2K R5 1M C2 630V.1UF GA R6 5W22K R7 33K GA GA C101 630V0.22UF C102 630V0.22UF R8 39K R101 120K R102 120K R401 2W10R R402 2W10R R13 2W470R R

2、14 2W470R R201 1K R202 1K GA C5 100pF 12VOV N1 115V N2 115V I1 4A I2 4A 1/0V 2/6.5V 16/0V 17/6.5V 11 9 Y/G I3 2A 15/12.6V 13/0V R17 5W62K C12 450V22UF GA R18 220R R19 220R GA A-55T SW1 4A/80A250V C6275V103 GA R20 1W180K I4 100mA 4/14V 5/0V V1:12AX7/ECC83 V2:12AU7/ECC82 A1,A2,A3,A4:KT88 S1 TR/UL 381V

3、 GA GA ZD1 200V C1 C2 R26 2W47K R27 2W47K R28 5W2K C16 500V330uF T1 280mA C17 450V470uF AC 1 AC 2 + 3 - 4 D9 BR310 R29 180K C18 100V100uF R30 33KC9 630V0.47uF C19 450V22uF R31 2W3K R301 22K C20 160V100uF 60V D7 FR107 VR101 22K LC1 100V100uF GA VR102 22K R301 22K VR101 22K VR102 22K 100mA 15/60V 13/0

4、V C1C2C3C4 0V 360V 348V GA Lin Rin GND GA 440V TP0.4V TP0.4V + - + BIAS TEST POINT BIAS ADJ. 431V Lch BIAS.PCBRch BIAS.PCB Rch BIAS.PCB 3 5 8 4 2 7 A3 3 5 8 4 27 A4 R4a 1/2W5.6k 1 2 3 6 8 7 V3A 12AX7 R1 1M R2 1K R4 2W100K C1 630V0.1UF R3 1.2K R5 1M C2 630V.1UF GA R6 5W22K R7 2W33K GA GA C101 630V0.2

5、2UF C102 630V0.22UF R8 2W39K R101 120K R102 120K R401 2W10R R402 2W10R R13 2W470R R14 2W470R R201 1K R202 1K GA C5 100pF 12VOV R20 1W180K S1 TR/UL GA GA C1 C2 R26 2W47K R27 2W47K TP0.4V TP0.4V + - + BIAS TEST POINT Rch BIAS.PCB 3 5 8 4 2 7 A1 3 5 8 4 27 A2 R4a 1/2W5.6k 1 2 3 6 8 7 V1A 12AX7 L N E L

6、AC IN 230V FUSE1 T3.15A250V P1 G1 B+ G2 P2 8 4 0 T2 OUTPUT TRANS1 P1 G1 B+ G2 P2 8 4 0 T3 OUTPUT TRANS1 1 2 3 V2A 12AU7 1 2 3 V4A 12AU7 6 7 8 V2B 12AU7 6 7 8 V4B 12AU7 F1 KR600-180 F2 KR600-180 4 9 5 V1C 12AX7 4 9 5 V3C 12AX7 4 9 5 V2C 12AU7 4 9 5 V4C 12AU7 Cayin 3.0 V3.0 20160323 I7 150mA 8/17V 150

7、mA 7/0V 6/17V Power Amp GND OUT +5V GND R37 10K EC BQ1 A1015 R38 4.7K GND C24 104 L1 4.7uH L2 4.7uH GND L3 1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 20RST RXD/P3.0 TXD/P3.1 XTAL1 XTAL2 INT0/P3.2 INT1/P3.3 T0/P3.4 T1/P3.5 GND Vcc P1.7 P1.6 P1.5 P1.4 P1.3 P1.2 P1.1/AIN1 P1.0/AIN0 P3.7 IC1 89C2051

8、A XTALI1 12MHz C2530pF C2630pF GND 1 2 3 4 8 7 6 5 IC2 LB1639 GND R39 47K R40 47K R41 4.7K R42 4.7K MOT+ MOT- C27 104 GND GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 IN1 IN2 IN3 IN4 IN5 IN6 IN7 GND OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 COM IC3 ULN2003 LED2LED3LED4LED5 R43 1K A-50T-CPU.PCB CD(LINE1) LINE

9、2(TUNER) LINE3(AUX1) LINE4(AUX2) +12V R444.7K GND 1 2 3 DSE1 SPS-440-1 R45 10K C28 104 1 2 3 4 5 6 J4a FROM INPUT GND GND Vin 1 GND 2 Vout 3 U1 7805 C13 100uF/25V C7 473 C8 473 k1 k2 selector GND B CE Q2 9014 Q3 9014 R21 1.5K R22 1.5K R23 3.3K R24 10K GND VR1 100KA VR2 100KA 1 2 3 J1 GND1 1 2 3 4 5

10、6 7 J5a FROM MCU MUTE +12V GND LED M+ M- Lout Rout GND A-50T-SEL.PCBA-50T-VOL.PCB up dow C21 10uF/25V C22 10uF/25V redyel R46 220K R47 220K GND C12 100uF/25V A 1 K 2 D7 1N4001 A 1 K 2 D8 1N4001 1 2 3 4 8 7 6 5 IC4 AT24C04 L4 5V C19 10uF C20 104 SDA SCL SCL SDA C5 103 C6 103 R28 100R R26 1KR27 100K 1

11、 2 3 LED1 TR/UL 1 2 3 4 5 6 78 RY103 LINE4(AUX2) 1 2 3 4 5 6 78 RY102 LINE3(AUX1) LINE3 R131R 100R 1 2 3 4 5 6 78 RY101 LINE2(TUNER) LINE2 1 2 3 4 5 6 78 RY100 CD(LINE1) LINE4 12V CD 1 2 3 CN102 TO VR 0V Vin 1 GND 2 Vout 3 U103 7812 C123 25V1000uF R131L 100R 14V C122 1000uF/25V AC 1 AC 2 + 3 - 4 D10

12、1 DB101 R132R 100R R132L 100R R133R 100R R133L 100R R136R 100R R136L 100R L R J6 L_out J8 GND J7 R_out 1 2 3 4 5 6 78 RY104 MUTE 7 6 5 4 3 2 1 J5B TO VOL MUTE LED MUTE LED 5Vcc LED+ LED+ GND 12V 12V MUTE(RY104) MUTE(RY104) 12V GND LINE1(CD) LINE2 LINE3 LINE4 1 2 3 J3 TO KEY 12 3 4 5 6 7 8 9 RS1 1/6W

13、10K9 C29 25V10uF A 1 K 2 D9 1N4001 5V C15 100uF/25V J9 GND J10 LINE1R J11 LINE1L J12 CD R J13 CD L J14 AUX1 R J15 AUX1 L J16 AUX2 R J17 AUX2 L J19 GND C3 600V0.1uF C4 600V0.1uF GND C2 104 C1 104 5Vcc 5Vcc 6 5 4 3 2 1 CN100 TO MCU 1 2 J2B TR/UL 1 2 CN101B AC IN M + -M1 MOTOR SERVO Rout-PH GND Lout-PH L5 180mA4H 1 2 CON101A 14V 1 2 3 J4A CON3 7 120 FUSE1 THERMAL FUSE RadioFans.CN