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Sony TC-KB820S, Руководство по обслуживанию

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– 23 –

– 24 –

TC-KB820S

5-6.

SCHEMATIC  DIAGRAM  – MAIN Section – (2/3)

•

 See page 27 for Waveforms.

(Page 22)

(Page 22)

(Page 18)

(Page 25)

(Page 25)

Содержание TC-KB820S

Страница 1: ...rt Mechanism Type TCM 190VB12CSS SPECIFICATIONS TC KB820S Dolby noise reduction and HX Pro headroom ex tension manufactured under license from Dolby Laboratories Licensing Corporation HX Pro origi nated by Bang Olufsen DOLBY the double D symbol a and HX PRO are trademarks of Dolby Laboratories Licensing Cor poration Continued on next page ...

Страница 2: ...cement Never reuse a disconnected chip component Notice that the minus side of a tantalum capacitor may be dam aged by heat SAFETY RELATED COMPONENT WARNING COMPONENTS IDENTIFIED BY MARK OR DOTTED LINE WITH MARK ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS ...

Страница 3: ...ram MD Section 17 5 4 Printed Wiring Board MAIN Section 19 5 5 Schematic Diagram MAIN Section 1 3 21 5 6 Schematic Diagram MAIN Section 2 3 23 5 7 Schematic Diagram MAIN Section 3 3 25 5 8 Printed Wiring Board DOLBY S Section 29 5 9 Schematic Diagram DOLBY S Section 29 5 10 Printed Wiring Boards PANEL Section 31 5 11 Schematic Diagram PANEL Section 33 5 12 IC Pin Function Description 35 6 EXPLODED...

Страница 4: ...ape operation buttons AMS 0 button button AMS button p button P PAUSE button R REC MUTING button r REC button 6 Tape counter 7 Counter buttons RESET button MEMORY button 8 Cassette holder 9 EJECT button º AUTO CAL button DOLBY NR switch BALANCE control REC LEVEL control AMS is an abbreviation for Automatic Music Sensor ...

Страница 5: ...e case 1 flat cable CN801 3 screw BVTP3 8 5 four screws BVTP3 8 7 two connectors CNP31 33 5 screw BVTP3 8 6 claw 6 claw 1 flat cable CN504 4 two earth lugs 2 connector CN704 1 flat cable CN81 2 connector CN506 8 front panel section 4 two screws BVTT2 6 8 6 Remove the MD ass y section to direction of arrow A 5 two screws BVTP2 6 8 2 two claws 1 push the eject button 2 two claws 3 cassette lid ass y...

Страница 6: ... 6 MAIN BOARD CASSETTE HOLDER R ASS Y 4 two screws BVTP3 8 2 screw BV ring 5 MAIN board 1 connector CN701 4 screw BV ring 3 bracket TR 2 boss 3 shaft 1 torsion spring 4 cassette holder R ass y ...

Страница 7: ...ing pull the FR belt and put around the claws as shown below 1 connector CNP32 3 fitting base block Note When installing pull the capstan belt and put around the claws as shown below 2 screw B2 10 1 connector CNP32 4 azimuth screw 5 record playback head 6 compression spring 3 erase head ...

Страница 8: ... 8 MOTOR 5 two screws B2 6 3 7 two screws P2 6 2 8 2 flexible board CNP72 1 connector CNP71 3 claw 3 claw 3 two claws 6 capstan motor º ground plate 4 audio board 8 reel motor 9 FR belt ...

Страница 9: ...approach for the erase head 3 Do not use a magnetized screwdriver for the adjustment 4 After the adjustments apply suitable locking compound to the parts adjusted 5 The adjustments should be performed with the rated power supply voltage unless otherwise noted Torque Measurement Mode Torque Meter Meter Reading Forward CQ 102C 30 to 60 g cm 0 42 to 0 83 oz inch Forward back CQ 102C 2 to 7 g cm tensi...

Страница 10: ... short circuit plug into TP801 2P and turn ON the power switch Earth pin ª of IC801 and turn ON the power switch At first all the fluorescent tubes light up then the system re turns to normal display However 00 00 is not displayed on the counter 2 To release the test mode remove the short plug and turn off the power switch 3 Remove the short plug after completion of adjustment set 47 k Ω LINE OUT ...

Страница 11: ...ated several times Adjustment Location AUDIO board See page 12 set LINE OUT frequency counter test tape WS 48B 3 kHz 0 dB 47 k Ω set LINE OUT 47 k Ω test tape P 4 L300 315 Hz 0 dB level meter Bias Consumption Current Adjustment Procedure 1 Set RV81 L CH and RV91 R CH to mechanical center and turn the set recording mode 2 Connect digital voltmeter as shown by the following table 3 Adjust the follow...

Страница 12: ...ts the adjustment limits below Adjustment Limits 3 8 0 5 dB 0 47 to 0 53 V Adjustment Location MAIN board AUDIO BOARD SIDE A set AF OSC Attenuator 600 Ω 10 k Ω CS 123 blank tape LINE IN 315 Hz 0 5 V 3 8 dB set LINE OUT 47 k Ω recorded portion level meter Adjustment Location MAIN BOARD COMPONENT SIDE DOLBY S BOARD RV211 RV111 J501 CN831 CN833 TP801 RV72 RV71 RV21 RV11 T81 T91 RV81 IC31 TP81 RV91 ...

Страница 13: ...oltages are taken with aVOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms Signal path E PB a REC Note The components identified by mark or dotted line with mark are critical for safety Replace only with part num...

Страница 14: ... PRINTED WIRING BOARDS MD Section See page 13 for Circuit Boards Location Semiconductor Location Ref No Location D31 C 1 IC31 C 2 IC81 B 3 IC81 G 4 Q51 B 2 Q52 B 2 Q53 B 2 Q71 C 4 Note LEAF SW BOARD Page 20 Page 19 Page 19 ...

Страница 15: ...TC KB820S 18 17 5 3 SCHEMATIC DIAGRAM MD Section See page 27 for Waveforms Page 21 Page 21 Page 23 ...

Страница 16: ...3 E 1 D714 E 3 D715 F 4 D801 D 2 D802 D 2 IC501 C 9 IC502 F 9 IC503 D 6 IC504 C 5 IC505 D 5 IC506 A 9 IC507 C 7 IC508 B 4 IC509 C 4 IC510 B 6 IC511 F 10 IC512 D 9 IC601 A 3 IC701 G 4 IC801 B 2 IC802 D 2 Q101 A 8 Q102 B 8 Q103 E 8 Q121 F 6 Q122 D 7 Q201 A 8 Q202 B 10 Q203 E 9 Q221 F 6 Q222 D 7 Q503 E 8 Q511 B 6 Q512 B 7 Q521 F 7 Q531 B 5 Q532 B 5 Q551 A 5 Q572 F 7 Q573 C 7 Q601 B 3 Q701 G 6 Q702 G ...

Страница 17: ...5 5 SCHEMATIC DIAGRAM MAIN Section 1 3 Page 30 Page 34 Page 18 Page 18 Page 30 Page 23 Page 23 The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified ...

Страница 18: ... 23 24 TC KB820S 5 6 SCHEMATIC DIAGRAM MAIN Section 2 3 See page 27 for Waveforms Page 22 Page 22 Page 18 Page 25 Page 25 ...

Страница 19: ...ATIC DIAGRAM MAIN Section 3 3 See page 28 for IC Block Diagrams The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified Page 33 Page 33 Page 34 Page 24 Page 24 ...

Страница 20: ...3 TCL2 ZL2 5 9 8 7 6 TCL1 SCINH TCS1H ZL1 HLSMP MCTC 10 11 12 13 VCT 14 VEE 15 24 25 26 27 28 29 30 20 21 22 23 19 17 18 16 TCS2H TCF2H FBOH TCF1H ANTSAT FLVCR SLVCR FHVCR LFICG LFVCR LFDET SHVCR SLDET SLICG SHICG SHDET FLDET FHDET FLICG FHICG V TO I CONV H V TO I CONV H VREF IREF MC4 MC3DS MC3DT MC2 MC1 MC4 MC3 MC1 MC IC1 CXA1917AM T6 DOLBY S BOARD IC502 CXA1579P MAIN BOARD 2 1 MUTE R CAL G CAL I...

Страница 21: ... 30 29 TC KB820S 5 9 SCHEMATIC DIAGRAM DOLBY S Section See page 28 for IC Block Diagrams 5 8 PRINTED WIRING BOARD DOLBY S Section See page 13 for Circuit Boards Location Page 21 Page 20 ...

Страница 22: ... 31 32 TC KB820S 5 10 PRINTED WIRING BOARDS PANEL Section See page 13 for Circuit Boards Location Page 19 Page 19 Page 32 Page 32 Page 19 Page 20 ...

Страница 23: ...KB820S 34 33 5 11 SCHEMATIC DIAGRAM PANEL Section The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified Page 21 Page 26 Page 26 Page 26 ...

Страница 24: ...ec after power on then it changes to H 31 XO O System clock output terminal 6 MHz 32 XI I System clock input terminal 6 MHz 33 VSS Ground terminal 34 BIAS CAL 0 O 35 BIAS CAL 1 O 36 BIAS CAL 2 O 37 BIAS CAL 3 O 38 CAP M ON OFF O Capstan motor M902 on off control signal output terminal H motor on 39 OSC H L O Calibration tone frequency high low control signal output terminal L frequency high 40 OSC...

Страница 25: ... Color Cabinet s Color Ref No Part No Description Remark Ref No Part No Description Remark 1 CASE CHASSIS SECTION rA TRANSFORMER board 2 3 2 2 4 5 including rA rE 1 1 T901 rA 1 1 1 not supplied 2 2 FRONT PANEL SECTION 11 11 6 2 1 9 1 not supplied not supplied not supplied not supplied UK AEP Australian 7 7 7 A A 11 10 1 X 4949 523 1 FOOT ASSY F50180S 2 3 710 901 11 SCREW TAPPING 3 3 021 377 01 CAS...

Страница 26: ...POWER 58 4 951 620 01 SCREW 2 6X8 BVTP 59 1 696 456 11 WIRE FLAT TYPE 31 CORE 60 1 590 486 11 WIRE FLAT TYPE 7 CORE 61 3 020 975 01 BUTTON CONTROL 62 3 020 977 01 BUTTON AUTO CAL 63 3 933 299 01 KNOB DIA 12 64 X 3375 506 1 BASE KB820S ASSY PANEL 65 3 937 169 01 SPRING TENSION 66 3 020 976 01 BUTTON EJECT 67 3 354 981 11 SPRING SUS RING 2 FRONT PANEL SECTION rB AC POWER SW board rC HP board rD PANE...

Страница 27: ...57 01 JOINT LOCK LEVER 105 3 354 954 01 LEVER LOCK LEVER R 106 3 354 962 01 SPRING EJ SAFTY SPRING R 107 3 354 956 01 LEVER EJ SAFTY LEVER R 108 3 354 960 01 SPRING LOADING R TORSION Ref No Part No Description Remark Ref No Part No Description Remark 13 MD ASS Y SECTION 102 5 TCM 190VB12CSS 103 104 105 106 108 101 107 ...

Страница 28: ... No Part No Description Remark Ref No Part No Description Remark 164 1 638 020 11 LEAF SW BOARD 165 3 359 430 01 SPRING CASSETTE RETAINER LEAF 166 3 575 321 00 RETAINER THRUST CAPSTAN 167 3 359 424 01 GEAR REV GEAR 168 X 3366 971 1 TABLE ASSY B REEL 169 3 362 308 01 CAP REEL 170 3 356 713 01 WASHER 171 X 3366 970 1 TABLE ASSY REEL 172 X 3366 047 1 LEVER PINCH F ASSY HE901 1 543 673 11 HEAD MAGNETI...

Страница 29: ...ER SPRING TORSION 207 X 3366 569 1 ARM ASSY FR Ref No Part No Description Remark Ref No Part No Description Remark 208 3 359 419 11 GEAR FR GEAR 209 3 359 421 01 CLUTCH REEL DISK 210 3 359 418 01 PULLEY FR PULLEY 211 3 924 185 11 SPRING FR ARM TORSION 212 3 936 483 01 GEAR CAM GEAR 213 3 359 448 01 GEAR TRIGGER 5 MECHANISM DECK SECTION 2 TCM 190VB12CSS 201 202 203 204 205 206 207 208 209 210 211 2...

Страница 30: ...82 11 CERAMIC CHIP 0 0033uF 10 50V C53 1 163 020 00 CERAMIC CHIP 0 0082uF 10 50V C54 1 136 601 11 FILM 0 01uF 5 630V C56 1 164 505 11 CERAMIC CHIP 2 2uF 16V C57 1 164 346 11 CERAMIC CHIP 1uF 16V C71 1 164 346 11 CERAMIC CHIP 1uF 16V C80 1 124 234 00 ELECT 22uF 20 16V C81 1 164 232 11 CERAMIC CHIP 0 01uF 50V C82 1 136 157 00 FILM 0 022uF 5 50V C83 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V C84 1 136 43...

Страница 31: ...uF 10 50V C4 1 164 222 11 CERAMIC CHIP 0 22uF 25V C5 1 136 165 00 FILM 0 1uF 5 50V C6 1 136 165 00 FILM 0 1uF 5 50V C7 1 137 372 11 FILM 0 022uF 5 50V C8 1 164 222 11 CERAMIC CHIP 0 22uF 25V C9 1 126 301 11 ELECT 1uF 20 50V C10 1 137 442 11 FILM 0 039uF 5 50V C11 1 163 007 11 CERAMIC CHIP 680PF 10 50V C12 1 164 717 11 CERAMIC CHIP 0 0082uF 5 50V C13 1 163 038 00 CERAMIC CHIP 0 1uF 25V C14 1 124 46...

Страница 32: ...V C205 1 136 165 00 FILM 0 1uF 5 50V C206 1 136 163 00 FILM 0 068uF 5 50V C207 1 126 965 11 ELECT 22uF 20 50V C208 1 126 964 11 ELECT 10uF 20 50V C209 1 126 964 11 ELECT 10uF 20 50V C210 1 126 963 11 ELECT 4 7uF 20 50V C211 1 126 962 11 ELECT 3 3uF 20 50V C212 1 126 959 11 ELECT 0 47uF 20 50V C213 1 126 963 11 ELECT 4 7uF 20 50V C214 1 137 436 11 FILM 0 0039uF 5 50V C215 1 137 366 11 FILM 0 0022uF...

Страница 33: ... 8 759 634 51 IC M5218AP IC512 8 759 634 51 IC M5218AP IC601 8 759 803 42 IC LA6500 FA IC701 8 759 634 51 IC M5218AP IC801 8 752 856 27 IC CXP82612 022Q IC802 8 759 165 82 IC PST600E T JACK J501 1 784 430 11 JACK PIN 4P LINE IN OUT FILTER LPF101 1 233 271 11 FILTER LOW PASS LPF201 1 233 271 11 FILTER LOW PASS TRANSISTOR Q101 8 729 900 89 TRANSISTOR DTC144ES Q102 8 729 900 80 TRANSISTOR DTC114ES Q1...

Страница 34: ...N 100K 5 1 4W R515 1 249 436 11 CARBON 39K 5 1 4W R516 1 249 425 11 CARBON 4 7K 5 1 4W R517 1 249 433 11 CARBON 22K 5 1 4W R518 1 249 425 11 CARBON 4 7K 5 1 4W R521 1 249 426 11 CARBON 5 6K 5 1 4W R522 1 249 426 11 CARBON 5 6K 5 1 4W R523 1 247 858 11 CARBON 13K 5 1 4W R524 1 247 852 11 CARBON 7 5K 5 1 4W R525 1 247 854 11 CARBON 9 1K 5 1 4W R526 1 247 854 11 CARBON 9 1K 5 1 4W R527 1 249 426 11 C...

Страница 35: ...765 11 RES ADJ CARBON 22K RV211 1 241 765 11 RES ADJ CARBON 22K TEST PIN TP801 1 560 060 00 PIN CONNECTOR 2P TEST TERMINAL VIBRATOR X801 1 577 360 11 VIBRATOR CERAMIC 6MHz PANEL BOARD Included in MAIN BOARD COMPLETE 3 377 337 11 HOLDER FL CAPACITOR C901 1 104 665 11 ELECT 100uF 20 10V CONNECTOR CN901 1 568 845 11 SOCKET CONNECTOR 31P FILTER FL901 1 517 374 11 INDICATOR TUBE FLUORESCENT IC IC901 8 ...

Страница 36: ... M901 X 3363 501 2 MOTOR ASSY REEL M902 X 3374 302 1 MOTOR ASSY CAPSTAN T901 1 427 751 11 TRANSFORMER POWER HARDWARE LIST 1 7 685 646 79 SCREW BVTP 3X8 TYPE2 N S 2 7 685 885 09 SCREW BVTT 4X16 S 3 7 685 863 09 SCREW BVTT 2 6X8 S 4 7 685 134 19 SCREW PTPWH 2 6X8 TYPE2 5 7 685 862 09 SCREW BVTT 2 6X6 S 6 7 621 772 58 SCREW B 2X10 7 7 621 775 00 SCREW B 2 6X3 8 7 627 556 08 SCREW P 2 6X2 8 ACCESSORIE...

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