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Aiwa CS-880 H, Руководство по обслуживанию

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AIWA 

J

CS-880H,HG,U,UC

D ISA SSEM BLY  INSTRUCTIONS

Removing the Main  Case

1) 

Remove 11  screws on the rear lid shown by arrows <

- Q

© o ________ j—

-----

-r

O§"©On-

-°v=Cj 

-

—

Ö 1

-

©<=  ”

-“□

Installing the Main  Case

1) 

Check  that  the fibre apper of the  REC/PB  PC  Board  (pattern 
die) is fixed properly.

Firm ly  fix  the  fibre  paper  using  two-sided  tape, etc. 

because  it  is  likely  to  lift  up  when  it  is  peeled  off 
once.

2) 

Lower all the lever switches in the direction of the arrow.

2) 

Remove 9 knobs.

5 0 3 ) 

Be  sure to  install  in  the  order (1)  — (3). Be careful: when 
it  is  mounted  incorrectly,  it  may  damage  the  dial  plate 

and the display PC Boards, etc.

S g 3 ) 

Open the cassette lid.

(It is not required to remove the cassette lid)

4) 

Match  the  knobs  while  performing  item  3)  and  tapping  the 

side.

3

Содержание CS-880 H

Страница 1: ...eparation 22 3 dB at 1 kHz Auto stop level FM 22 10 dB at 98 MHz AM 60 10 dB at 1 008 kHz TAPE RECORDER SECTION Tape speed 4 8 cm s 3 Recording system Erasing system Record bias frequency Distortion F...

Страница 2: ...RTS To avoid troubles when disassembling or replacing the main parts follow the chart diagram as below Radio chassis Including radio chassis tuning display MS A f pattern side PC Boards Tuning circuit...

Страница 3: ...fix the fibre paper using two sided tape etc because it is likely to lift up when it is peeled off once 2 Lower all the lever switches in the direction of the arrow 2 Remove 9 knobs 5 0 3 Be sure to...

Страница 4: ...o prevent the pointer of the level meter from being damaged Installing the radio chassis 1 Hook the jack plate to the tab of the rear lid while paying attention not to pinch the wire Compress the radi...

Страница 5: ...AIWA I CS 880H HG U UC Removing Mechanism 1 Loosen the screw and remove the hook of the rod 2 Remove 4 screws 5...

Страница 6: ...ttention to the springs and levers etc shown in the figure below the lever REC driver Be sure to hook the T spring PLA Y lever to the cam of the gear when installing the gear PLA Y Hook it from the in...

Страница 7: ...w 2 the boss A of the gear PLA Y touches the trigger lever PLA Y and the gear stops rotating When the gear PLA Y rotates the lever PLA Y moves in the direction of the arrow 3 along the cam groove on t...

Страница 8: ...r wheel to rotate in the direction of the arrow 2 the boss A touches the boss of the trigger lever FF and the gear FR cam stops The FR lever B moves in the direction of the arrow 3 along the groove of...

Страница 9: ...e gear FR engages with the gear fly wheel rotates in the direction of the arrow 3 boss B touches the trigger lever FF and rotation stops The FR gear B is moved in the dirSfction the arrow 4 by means o...

Страница 10: ...ss B touches the trigger PAUSE and rotation stops The PAUSE lever moves in the direction of the arrow 3 along the cam groove of the PAUSE g e at that time The PLA Y idler lever and the pinch lever ass...

Страница 11: ...ed from the R t ever driver and on y the the trigger lever REC moves in the direction of the arrow 1 REC operation is released The PLA Y operation is performed simultaneously at that time so the REC l...

Страница 12: ...e up reel disc ass y is rotating so the boss of the lever auto A moves along the cam A groove of the gear auto kick When the reel discs S T sides stop the lever auto A stops in the condition being mov...

Страница 13: ...AIWA J CS 880H HG U UC SPRING APPLICATION POSITION 13...

Страница 14: ...CS 880H HG U UC j AIWA EXPLODED VIEW 1 1 I 2 3 I 4 I 5 7 B H 14...

Страница 15: ...ack cover ass y H HG model only 1 1 13b 09 017 842 01 Back cover ass y U UC model only f t 1 8 2 5 8 7 038 01 Back cover ass y H HG m od el on ly 1 8 2 5 8 7 0 4 2 0 1 Back cover ass y U U C m odel on...

Страница 16: ...CS 880H HG u j u EXPLODED VIEW 2 1 I 2 B H 16...

Страница 17: ...D R500 H U UC 4 HG 3 2 15 82 588 634 01 Earth REC CS 770 1 2 16a 82 587 008 01 Dial plate Silver H U UC model only 1 2 16b 82 587 061 01 Dial plate Blue H HG model only 1 2 16c 82 587 062 01 Dial pla...

Страница 18: ...CS 880H HG U UC J AIWA E X P L O D E D V IE W 3 1 I 2 B U 0 2 I2 H PW I 7 3 5 0 2 5 P W I 7 3 5 0 25 PW I 7 3 5 0 25 18...

Страница 19: ...1 T spring Center shift 1 3 15 82 585 312 01 E spring Brake R 1 3 16 82 585 253 01 Lever Brake R 1 3 17 82 585 286 01 Rubber cushion Brake 3 18 82 585 252 01 Lever Brake L 1 3 19 82 585 265 01 REV lev...

Страница 20: ...CS 880H HG uuc I AIWA B H EXPLODED VIEW 4 ___ ___ I ___ L V 3 I2 f V T T 2 6 5 PW2 1 3 5 0 25 32 20...

Страница 21: ...AUSE 1 4 31 82 585 246 01 Gear PAUSE 1 4 32 82 585 247 01 Gear Auto kick 1 4 33 82 585 249 01 PLAY lever 1 4 34 82 585 250 01 Lever REC drive 1 4 35 82 585 307 01 T spring REC lever 1 4 36 82 585 266...

Страница 22: ...Fig 2 2 1 Operation During FM Reception The pulse swallow system is first outlined The relationship between fosc and fref is expressed as osc N re f 1 If N is assumed to be P notation fosc ni Pn2 P2n3...

Страница 23: ...ince signals are fed out during AM FM re ception one or other is connected to LPF 3 CE High Normal operation Low Memory held operation stops 4 PSC Feeds out frequency division ratio switch ing signal...

Страница 24: ...28 30 29 47 48 50 43 44 46 45 12 13 11 3 51 42 34 41 SEGM ENTOUT A1 B1 C1 D1 E1 F1 G1 A2 B2 C2 D2 E2 F2 G2 A5 B5 C5 D5 E5 F5 G5 AA BA CA DA EA FA GA F1 F2 DP1 DP2 DP3 DP4 DP5 CH LCD segment output pi...

Страница 25: ...g no output appears at point C and when there is an output at pin 15 point F is set to a low level and no signal is fed out to point C A trigger pulse is produced at point G by the above two AND circu...

Страница 26: ...its attack time and recovery time are extremely short Because of the boosted level the output must be not distorted When a signal exceeding a certain fixed level is fed out it is taken out by the Q49...

Страница 27: ...8 87 051 171 11 Poly vinyl sack for instruction 1 9 87 056 009 41 Distributors list H HG UC model only 1 10a 87 056 059 01 Guarantee card G HG model only 1 10b 87 056 045 01 Guarantee card U U model o...

Страница 28: ...81 0525 1 Z i A I W A c o l t d...

Страница 29: ...5H VR5 87 021 667 01 Volume 20ki2 A VOLUME CF2 87 008 235 01 Ceramic filter 10 7 S1 87 031 621 01 Lever switch FUNCTION U UC model only S2 82 588 622 11 Slide switch REC PB CF3 87 008 225 01 AM cerami...

Страница 30: ...027 365 01 87 027 332 01 87 027 097 01 87 027 716 01 87 027 228 01 87 031 496 01 87 021 624 01 87 015 318 01 87 015 425 01 MS circuit board H HG model only MS circuit board U UC model only IC TC9138P...

Страница 31: ...ransistor 2SC2240 GR Transistor 2SC1815 Y Pin 4P REC M UTE C IRC U IT BOARD SECTION PCB H 0 7 2 D1 S9 MS C IRC U IT BOARD SECTIO N 82 587 642 21 89 110 154 01 87 027 097 01 82 587 642 01 REC mute circ...

Страница 32: ...symbol This symbol is given to important parts which serve to maintain the safety of the product and which are made to conform to special safety specifications Therefore when replacing a component wit...

Страница 33: ...rmance s t i e FUNCTION TAPE S I2 MS B SW S 2 3 P R E S E T CH A N N EL 4 S2 M 4 REC PB P B S I3 P U S E SW O FF S 24 P R E S E T C H A N N EL 3 S3 l 6 TAPE SELECTORfLH S 14 SY N C iO F F S 2 5 P R E...

Страница 34: ...AIWA J SCHEMATIC DIAGRAM 2 10 1 2 1 3 1 4 1 5 1 6 B PIN PIN PIN 2 8 1 Q TUN ER C B PIN PIN PIN 2 9 10 H TUN ER C B...

Страница 35: ...10 1 2 13 14 15 16 17 18 1 9 JTUNER C B C2 CONTROL C B H CONTROL C B J S32 P U P L 2 lUGHTI J LIG H f SWITCH C B PIN I l H TUNER C B PIN PIN PIN I2 8 ffi l E STUNER C B PIN PIN PIN 2 9 10 0 TUNER C B...

Страница 36: ...B S S Others pattern 2 The voltage is the reference value measured with a tester 20 K ohms V DC when there are no signals An asterisk indicates that the value was measured with a vacuum tube voltmeter...

Страница 37: ...TP3 4 is 56 mV 560pA Ratings L H 38 mV 380 xA M ETAL 82 mV 1820 uAI B pattern of bias OSC circuit I Bias OSC Frequency Test Point 8 Bias Frequency Adjustment Settings Recording mode Test point TP5 OS...

Страница 38: ...Others pattern J2 The voltage is the reference value measured with a tester 20 K ohms V DC when there are no signals But is with AM reception 4 I 5 I 6 I 7 I 8 I 9 I 10 I 1 1 1 2 1 3 14 1 5 1 6 H PO W...

Страница 39: ...andling precaution The C MOS JC s construction makes this part susceptible t damage by static electricity and so take sufficient care ii regard to following articles 1 Need to be put on conductive she...

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