Dragster DAD 1201 Service Manual Download

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MODEL: DAD 1201

SPECIFICATIONS

class “D” technology

input voltage 11-14.4 VOC

frequency response 15Hz~150Hz

S/N ratio [A-weight] >95dB

input level 0.17V~8V

T.H.D. 0.05%

input impedance 10K ohm

low pass crossover variable frequency 50Hz~150Hz

crossover slope 12dB/oct

variable bass boost 0-18dB@45Hz

variable subsonic filter 10~40Hz 12dB/oct

remote subwoofer level control included

phase 0~180

quiet ON/OFF

lit logo Dragster

fuse rating 40A×4

overall dimensions 186×490×56 mm

DAD 1201 CLASS D Power Amplifier

Service Manual

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Summary of Contents for DAD 1201

Page 1: ... 05 input impedance 10K ohm low pass crossover variable frequency 50Hz 150Hz crossover slope 12dB oct variable bass boost 0 18dB 45Hz variable subsonic filter 10 40Hz 12dB oct remote subwoofer level control included phase 0 180 quiet ON OFF lit logo Dragster fuse rating 40A 4 overall dimensions 186 490 56 mm DAD 1201 CLASS D Power Amplifier Service Manual 1 ...

Page 2: ...l be with the repairing company 5 Cautions regarding chips Do not reuse removed chips even when no abnormality is observed in their appearance Always replace them with new ones The chip parts include resistors capacitors diodes transistors etc The negative pole of tantalum capacitors is highly susceptible to heat so use special care when replacing them and check the operation afterwards 6 Cautions...

Page 3: ...EXPLODED VIEW 3 ...

Page 4: ...CIRCUIT DIAGRAM 1 DAD 1201 4 ...

Page 5: ...CIRCUIT DIAGRAM 2 DAD 1201 5 ...

Page 6: ...CIRCUIT DIAGRAM 3 DAD 1201 6 ...

Page 7: ... 7 PRINTED CIRCUIT BOARD 1 ...

Page 8: ... 8 PRINTED CIRCUIT BOARD 2 ...

Page 9: ... 9 PRINTED CIRCUIT BOARD 3 ...

Page 10: ... 10 PRINTED CIRCUIT BOARD 4 ...

Page 11: ... 11 PRINTED CIRCUIT BOARD 5 ...

Page 12: ... 12 PRINTED CIRCUIT BOARD 6 ...

Page 13: ...Q F P T A Y 6 6 2 1 A T K r o t s i s n a r T X X X Y 6 6 2 1 A K A P Q 1 5 9 3 7 3 Q 2 1 1 1 Q P Y 7 2 0 1 C T K r o t s i s n a r T X X X Y 7 2 0 1 C K A N Q 1 4 1 3 0 3 Q 4 1 Q 2 Q J P T A Y 8 9 1 3 C T K r o t s i s n a r T X X X Y 8 9 1 3 C K A N Q 1 1 5 1 Q 2 8 8 D T K r o t s i s n a r T 1 1 0 2 Q 2 9 O D 9 5 4 5 N 2 t e f s o M 8 7 2 4 2 Q 8 5 Q F B P E 0 1 0 1 F R I t e f s o M X X E 0 1 ...

Page 14: ...5 6 5 4 C R J C I X 8 0 2 D 5 6 5 4 C R J I 1 1 4 U 2 9 O T 1 3 4 A I K C I X 3 0 1 X X 1 3 4 A I K I 1 1 7 U 0 2 2 O T V C 5 1 8 7 L C I X 3 0 1 X V C 5 1 8 7 L I 1 1 5 1 U 0 2 2 O T V C 5 1 9 7 L C I X 3 0 1 X V C 5 1 9 7 L I 1 2 6 5 U 2 1 2 5 P L T C I X 8 0 2 X X 1 2 5 P L T I 1 1 1 D E L n e e r g 3 Ø D E L 1 2 D E L d e r 3 Ø D E L X X 8 2 5 2 0 7 Q S 2 O E 1 1R LA000105B12A Resistor 0 01Ω 2...

Page 15: ...R 1 2 2 9 1 R 8 1 R W 8 1 K 9 3 r o t s i s e R X X X B 5 0 X 3 9 3 A O R 1 1 1 2 R W 8 1 K 0 0 3 r o t s i s e R X X X B 5 0 X 4 0 3 A O R 1 6 N I A M 6 1 2 R 9 5 1 R 9 9 R 5 2 R 3 2 R W 8 1 K 7 4 r o t s i s e R X X X B 5 0 X 2 7 4 A O R 1 1R OA470X05BXXX Resistor 47Ω 7 1 0 1 R 5 7 1 8 6 1 R 0 5 1 R 7 5 4 5 R 3 1 1 1 R W 8 1 1R OA431X05BXXX Resistor 430Ω 1 8 0 1 R W 8 1 1R OA471X05BXXX Resistor ...

Page 16: ...4 2 2 S 1 1 1 W S T 2 P 4 h c t i w S 6 1 H 7 0 T 1 2 4 9 2 4 S 1 1 3 L H u 0 4 e c n a t c u d n I 4 2 2 3 3 H R D 1 M A A L 1 2 2 1 L H u 0 5 e c n a t c u d n I 2 2 2 3 3 H C 1 1 M A A L 1 1 2 T r e m r o f s n a r T 8 5 1 5 4 H D E 9 M A A T 1 1 1 T r e m r o f s n a r T A 5 1 5 4 H D E 9 M A A T 1 3 M E R 6 R V 3 1 R V K 0 2 B R V X 6 H 0 1 T 3 0 2 2 9 0 V 1 2 8 R V 4 R V K 0 5 B R V X 6 H 0 ...

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