Aiwa AD-R450 - service Service Manual Download Page 15

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Summary of Contents for AD-R450 - service

Page 1: ...dB METAL tape DOLBY C NR ON According to DIN 45 500 0 1 0 04 WRMS 4 8 cm sec 1 7 8 tps 70 sec C 60 70 sec C 60 Recording system Erase system Motor Head Inputs Outputs Dimensions Weight Accessories AC...

Page 2: ...ge selector switch Set the Voltage Selector Switch to 240V 220V or 120V According to your Local Voltage 5 A fter repaired the insulation resistance or leakage current shall be measured w ith 500 5V D...

Page 3: ...O T O S E N S O R N J L 5 1 4 1 E A 703 705 809 810 P E A K P R O G R A M M E T E R DG01 602 82 596 799 D I O D E I N 4 0 0 2 H HU H J 811 812 B T Y P E N O R M A L T E R M I N A L C I R C U I T 603...

Page 4: ...rately If this becomes necessary please order the entire circuit board Combination circuit board 82 135 601 PCB A 82 135 602 PCB B 82 135 603 PCB C 82 135 604 PCB D 82 135 605 PCB E 82 135 606 PCB F 8...

Page 5: ...T D I N O U T Z only Less than 2 5 N O R M A L Less than 3 OmV N O R M A L 1 2 0 iS D O L B Y N R O F F More than 4 5 dB N O R M A L D O L B Y N R O F F More than 4 5 dB N O R M A L D O L B Y N R O F...

Page 6: ...SCHEMATIC DIAGRAM 1 AD R450 HB HUB HJB CB EB KB GB Z models 1 I 2 3 4 5 I 6 10 11 12 13 14 15 16 Om a in c e KEY BOARD C B C0N8...

Page 7: ...c strength of less than 50WV 6 The only capacitor tolerance indicated are 5 J and 10 K 7 Ceramic capacitor symbols l For temperature compensation SL I h r High dielectric constant system YY II High di...

Page 8: ...R ON OFF S502 DOLBY NR B C SELECTOR NOTES 1 2 H m Earth pattern i f f l j j Printed resistor pattern H M O thers pattern The voltage is the reference value measured with a tester 20 K ohms V DC when t...

Page 9: ...V RWD F F M902 M901 S90I REC ENA FWD H HU HJ MODELS ONLY RPH90J EH90I R P E HEAD VOLTAGE SELECTOR CAPSTAN I MOTOR f REEL im o t o r 20 240V C0N9 E SWITCH C B 120V S907 PLAY L J S0L902 PLAY S906 PAUSE...

Page 10: ...SCHEMATIC DIAGRAM 2 AD R450 HB HUB HJB CB EB KB GB Z models _____ 1 I 2_______ I________2_______ ________ 4_____ J ________ 5_______ 1 6 A 10 11 12 17 18...

Page 11: ...for 40 mV output then play back the recorded tape and adjust so that the output difference between 1 kHz and 10 kHz is 0 5 0 5 d B or less 5 R E C P B G ain Adjustment Se ttin g s Test t a p e T T A...

Page 12: ...M E M O 21...

Page 13: ...EXPLODED VIEW 1 1 I 2 1 3 B H 22...

Page 14: ...I D E L E D Si 1 1 2 2 87 081 903 S T O P P E R R I N G C S 2 1 1 2 3 82 135 209 C S P R I NG E J E C T 1 1 2 4 82 135 008 E J E C T K N O B 1 1 2 5 82 683 212 H O L D E R O I L D A M P 1 1 2 6 82 175...

Page 15: ...2 4...

Page 16: ...L I G H T E S P R I N G A C T U A T I N G C H A S S I S A C T U A T I N G C H A S S I S Ass y 1 1 1 1 1 2 2 1 2 2 2 2 2 3 2 2 4 2 2 5 81 507 224 81 506 348 81 506 219 81 506 237 81 506 319 P S P R I N...

Page 17: ...3 1 I 2 I 3 Ref No Part No Description A 87 261 075 21 V 2 6 1 0 B 87 351 034 21 V T 2 5 C 81 505 341 01 V P T 2 6 3 1 5 D 87 512 074 21 V F T 2 6 8 E 87 351 034 21 PW 2 6 8 0 1 3 F 82 416 358 01 P W...

Page 18: ...A T E 1 3 15 81 505 271 T S P R I N G T R I G G E R L E V E R 1 3 1 6 81 505 204 M E C H A N I S M C H A S S I S B 1 3 17 81 505 282 T S P R I N G F R I D L E R 1 3 18 81 505 254 I D L E R L E V E R...

Page 19: ...n C o m m o n Model Q ty 1 82 135 901 B O O K L E T I N S T R U C T I O N 1 2 87 049 137 S I E M E N S P L U G H H J only 1 3 87 034 978 C O N N E C T I O N C O R D CW 2 5 4 B S K 2 4 82 135 851 B O X...

Page 20: ...M E M O 2a...

Page 21: ...840925 1 Z AIWA Co Ltd Tokyo Japan Printed in Japan...

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