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Figure 12 CABINET 

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Содержание QT-50Z

Страница 1: ...and only parts identical to those pacified be used f Page SPECIFICATIONS 2 NAMES OF PARTS 2 DISASSEMBLY 3 VOLTAGE SELECTION 3 STRINGING OF DIAL CORD 4 MECHANICAL ADJUSTMENT 4 CIRCUIT ADJUSTMENT 5 6 SCHEMATIC DIAGRAM 7 8 NOTES ON SCHEMATIC DIAGRAM 9 WIRING SIDE OF P W BOARD 9 IO EXPLODED VIEW 11 12 REPLACEMENT PARTS LIST 13 16 INDEX TO CONTENTS T SHARP CORPORATION ...

Страница 2: ...s RADIO Frequency range AM 526 5 kHz 1606 5 kHz SW 2 3 MHz 7 3 MHz SW 7 3 MHz 22 MHz FM 87 6 MHz 108 MHz SPEAKERS Speakers 9 cm 3 l 2 x 2 Specifications for this model are subject to change without prior notice 1 Volume Control 2 Balance Control 3 Tone Control 4 Function Selector Switch 5 Pause Button 6 Stop Eject Button 7 Fast Forward Button 8 Rewind Button 9 Play Button 10 Record Button 11 FM Mo...

Страница 3: ... integrated circuits and other circuits when servicing STEP REMOVAL PROCEDURE 1 Front cabinet 1 Battery compart ment lid A x 1 ZScrew B x6 3 Open the cassette holder C 4 Open the 2 3 Mechanism block 1 Tape counter drive Main P W Board cabinet D 5 Socket E x 1 belt F x 1 2 Screw IG x 2 3 Socket HI x 2 l Screw 11x8 2 Tip J x 2 I 3 2 3 3 3 4 Set the mechanism in such a way as that the record play bac...

Страница 4: ...ADPHONES FRECXJENCY HEAD lAtiK PLAY BACK COUNTER M Azimuth Tape spa TEST TAPE m r 1 11 Figure 4 4 TAPE SPEED TEST TAPES 1 TORQUE METER FOR COMPACT CASSETTE COMPACT CASSETTE TYPE TITLE FLUTTER MODEL FREQUENCY LEVEL APPLICATION Tape speed MTT 111 3 kHr 10 10 Wow and flutter check MODEL MEASUREMENT RANGE APPLICATION TW 2111 lo 16Ogcm Normal Playback torque 1 5 log cm Normal Back tension TW 2121 lo 1O...

Страница 5: ...NT TUNER SECTION IIGNAL GENERATDR 400 Hr 30 AM modulated FRE D I A L AD TEf SyAyE QUE POINTER JUST REMARKS N C Y SElTlNG MENT 4M IF AM RF SWt RF SWz RF Figure 5 l PLAYBACK AMPLIFIER SENSITIVITY Lowest 7 2 25 L7 Band MHZ frequency coverage 8 7 4 MHz Highest frequency TC4 Adjust for maximal output 9 2 6 MHz 2 6 MHz L4 Tracking 10 6 0 MHz 6 0 MHz TC3 11 Repeat steps 7 B 9 and 10 until no further impr...

Страница 6: ...or maximal output Figure 6 2 FM IF CURVE Figure 6 3 FM S CURVE 88 MHz 108 MHz 8 IRepeat steps 4 5 and 6 7 until no further Improvement can be made I I O 1 GND GNO VCO FREQUENCY ADJUSTMENT Figure 6 4 FM RF SIGNAL GENERATOR 400 Hz 30 FM unmodulated mono signal DIAL FREQUENCY POINTER ADJUST MENT REMARKS SETrING FM IC3 SlGNAL GENERATOR FREO UENCY COUNTER 52 See c e 6 Figure 6 5 FM STEREO FM mono posit...

Страница 7: ...1 I 2 I 3 I 4 I 5 I 6 MAIN P W B CIRCUIT TX p iMYl oz CC 1T l NOTES ON SCHEMATIC DIAGRAM can be found on page 9 1 I 2 I 3 I 4 I 5 I 6 Figure 7 SCt 7 ...

Страница 8: ...m B I I I i I I ...

Страница 9: ...to electrolytic capacitor the expression capacitance withstand voltage is used l The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chassis with no signal given 1 AM mode Marking except for 1 FM mode l Schematic diagram and Wiring Side of P W Board for this model are subject to change for improvement without prior notice Parts marked with...

Страница 10: ...I 7 I 8 I 9 I 10 I 11 I 12 0 r o II the r this main parts I per I 7 I 8 I 9 I 10 I 11 I 12 G SIDE OF P W BOARD lO ...

Страница 11: ...A 85 86 75 m 79 B 1 I 2 I 3 I 4 I 5 I 58 E 9 96 9 57 I lb F c 1 1 2 I 3 I 4 I 5 1 Figure 11 MECHANISM EXPLODED VIEW ll ...

Страница 12: ...A B c D E F G H 1 I 2 I 3 I 4 I 5 I 6 2 0 4 201 243 242 L 1 a I Figure 12 CABINET EXPLODED VIEW I Y I VJ 12 ...

Страница 13: ...Z Ceramic FM IF 10 7MHz RFILA0085AFZZ Ceramic AM IF 455kHz AC AE REF NO PART NO DESCRIPTION CONTROLS CODE vc1 2 vc3 4 TC1 2 TC3 4 TC5 RVC R0083 AFZZ Variable Capacitors Tuning AN RTO H1072AFZZ AC TC6 RTO H1072AFZZ AC TC7 RTO H1072AFZZ TC8 RTO HI 072AFZZ vc5 VRl VRI 01 VR102 VRI 03 RVC Z0062AFZZ RVR M0390AFZZ RVR ZO178AFZZ with Trimmers Trimmer AM Antenna Trimmer Trimmer AM Oscillation Trimmer Trim...

Страница 14: ...V f30 S C A A VCTYMFI HV472N 0 0047 ELF 5OV 30 SC AA VCTYMFI HV272K 0 0027 LF 5OV flO S C A A VCTYMFl HV272K 0 0027 pF 5OV flO S C A A RC QZA154AFYK 0 1 5 pF 25V flO M L A C RC QZA154AFYK 0 1 5 pF 25V flO M L A C VC WMFJC f223N 0 022 pF 16V 309 a S C A A VCKYMFl HBI 81 K 180 pF 5OV It1 0 C M AA VCKYMFl HB181 K 180 pF 5OV lO C M A A REF NO PART NO DESCRIPTION CODE Cl67 VCTYPAlEX473M 0 0 4 7 pF 25V ...

Страница 15: ...504 20 94R18000635 21 94R18000608 22 94Rl8000609 24 94R18000610 26 94R180007317 27 94R180000726 28 94R12000906 29 94R18000707 31 94 R180005303 32 94R18000508 34 94R180005302 35 94R18000507 37 94R18001005 39 94R18001010 40 94R5880910 41 94R12001201 43 94R5630902 46 94R18001114A 47 94R18001123 48 94R18001103 50 94R18000934 51 94R18000935 52 94R180009501 53 94 RI 8000909 54 94R18000941 55 94R18000942...

Страница 16: ...25 226 227 228 229 230 231 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 248 600 601 602 603 604 605 606 607 PART NO DESCRIPTION CODE LX JZ0004AFFD Taptite Screw l0mm Dia AA X 13mm MLIFP0034AFZZ Damper AC MSPRC0479AFFW Spting Battery Terminal AC I MSPRC0480AFFW Spring Battery TerminaL AC MSPRDO611 AFFJ Spring Cassette Holder AA MSPRD0592AFFJ Spring Record Playback AB Selector NBL...

Страница 17: ...ombined Assemblv I 201 2 HDALM044lAFSA AF 201 3 HDECS0055AFSA AF 202 GCABB1916AFSA AV 204 IGFTA 0013AFSA 1 AM 204 l IGFTAC1399AFSA AK 1204 2 HPNLH1073AFSA A C 205 GFTAB1159AFSA AE 206 HiNDP1049AFSA A C 231 QANTR0140AFSA A M 1 PACKING PART CCAB 1315AFo9 AT Same as 5OZ W Same as 5OZ W GCABB1916AFSE AV GFTA 0013AFSE AM GFTAC1399AFSE AK Same as 5OZ W GFTAB1159AFSE AE HiNDP1550AFSA A C QANTR0140AFSB A ...

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