Sony-TCSD1-tape-sm 电路图 维修手册.pdf

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1、TC-SD1 AEP Model UK Model E Model SERVICE MANUAL STEREO CASSETTE DECK MICROFILM Manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation. Model Name Using Similar MechanismTC-PX100 Tape Tran

2、sport Mechanism TypeTCM-ACLM572 SPECIFICATIONS RadioFans.CN 收音机爱 好者资料库 2 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 NU

3、MBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. TABLE OF CONTENTS 1. GENERAL 3 2. DISASSEMBLY 2-1.Case, Front Panel 4 2-2.Mechanism Deck (TCM-ACLM572) 5 2-3.Control Board, Dolby Board 5 2-4.Power Trans Board, AC Select SW Board, Power Board 6 2-5.Tray Assembly 6 2-6.Mechani

4、sm Chassis Block 7 2-7.Capstan Reel Motor (M902) 7 3. DIAGRAMS 3-1.Circuit Boards Location 8 3-2.Schematic diagram Display Section 9 3-3.Printed Wiring Board Display Section 11 3-4.Printed Wiring Board Main Section 16 3-5.Schematic Diagram Main Section 21 3-6.IC Block Diagrams 25 3-7.IC Pin Function

5、 Description 27 4. MECHANICAL ADJUSTMENT 29 5. ELECTRICAL ADJUSTMENT 29 6. EXPLODED VIEWS 6-1.Case, Front Panel Section 33 6-2.Chassis Section 34 6-3.Mechanism Deck Section-1 (TCM-ACLM572) 35 6-4.Mechanism Deck Section-2 (TCM-ACLM572) 36 6-5.Mechanism Deck Section-3 (TCM-ACLM572) 37 7. ELECTRICAL PA

6、RTS LIST 38 RadioFans.CN 收音机爱 好者资料库 3 SECTION 1 GENERAL This section is extracted from instruction manual. RadioFans.CN 收音机爱 好者资料库 4 SECTION 2 DISASSEMBLY Note :Follow the disassembly procedure in the numerical order given. 2-1.CASE, FRONT PANEL 2 Two screws, case stopper 8 Front panel 1 Two screws,

7、 case stopper 7 Two screws (+B 2.6 8) 6 Loading panel 5 Slide the tray. (Remove the connector from M901, supply the 6 V power from an external regulated power supply to pin-5 and pin-6 of CN05.) 4 Case 3 Screw (+B 2.6 8) CN05 M901 Pin-5? Pin-6? Regulated DC power supply Connector Connector Rear side

8、 Pin-1 Pin-6 CN05 1 6 + 5 2-2.MECHANISM DECK (TCM-ACLM572) 2-3.CONTROL BOARD, DOLBY BOARD 2 Connector 3 Connector 4 Connector 5 Mechanism deck (TCM-ACLM572) 1 Four screws (+B 3 10) 2 Two screws (+B 2.6 8) 1 Two connectors 4 CONTROL board 3 Two screws (+B 2.6 8) 7 DOLBY board 6 Four screws (+B 2.6 8)

9、5 Connector Harness Clamper Harness Precaution for assembling : Fix the harness with the clamper. 6 2-4.POWER TRANS BOARD, AC SELECT SW BOARD, POWER BOARD 2-5.TRAY ASSEMBLY 3 POWER TRANS board 8 POWER board 1 Connector 6 Screw (+B2.6 8) 2 Two screws (+PWH3 6) 4 Two screws (+B3 10) 7 Suport 5 Screw (

10、+B2.6 8) 1 Screw (1.7 8.2) 4 Arm (576) 2 Spring (B) 3 Boss Stainless ball (5 DIA) 5 Tray assembly Note : Be careful not to drop the stainless ball (5 DIA) when removing the tray assembly. 7 8 2-7.CAPSTAN REEL MOTOR (M902) 2-6.MECHANISM CHASSIS BLOCK 1 Four screws (+P 3 6) 2 Screw (+P 3 8) 3 Mechanis

11、m chassis 3 Claws (4 claws) 4 CONTROL board 2 Screw (stepped) 5 Remove soldering of the motor lead wire. 1 Remove soldering of the plunger solenoid 6 Three screws for motor Plunger solenoid 7 Hook the belt. 8 Capstan reel motor (M902) SECTION 3 DIAGRAMS 3-1. CIRCUIT BOARDS LOCATION 8 CONNECTION boar

12、d REAR PANEL board CONTROL board POWER TRANS board POWER board DOLBY board O/C SW board VR board FRONT board MODE CONTROL board TC-SD1 3-2. SCHEMATIC DIAGRAM DISPLAY SECTION 9 10 Note on Schematic Diagram: All resistors are in and 1/4 W or less unless otherwise specified. C : panel designation. U :

13、B+ Line. Note: The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. TC-SD1 3-3. PRINTED WIRING BOARD DISPLAY SECTION COMPONENT SIDECONDUCTOR SIDE Refer to page 8 for Circuit Boards Location. Refer to page 24 for MODE CONTROL

14、 board Schematic Diagram. Note on Printed Wiring Board: Y : parts extracted from the conductor side. b : Pattern of the rear side. 15 14 13 12 11 TC-SD1 COMPONENT SIDECONDUCTOR SIDE 3-4. PRINTED WIRING BOARD MAIN SECTION Refer to page 8 for Circuit Boards Location. Note on Printed Wiring Board: Y :

15、parts extracted from the conductor side. b : Pattern of the rear side. 16 17 18 19 20 TC-SD1 3-5. SCHEMATIC DIAGRAM MAIN SECTION Note on Schematic Diagram: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are

16、in and 1/4 W or less unless otherwise specified. C : panel designation. U : B+ Line. V : B Line. H : adjustment for repair. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : REC/PB () : REC : PB : STOP Voltages are taken with a VOM (Input impedance

17、10 M). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. Circled numbers refer to waveforms. Signal path. E: PB a: REC Refer to page 25 for IC Block Diagrams. Refer to pag

18、e 27 for IC Pin Function Description. Refer to page 15 for MODE CONTROL board Printed Wiring Board. 21 22 23 24 Ref. No.Location D01F-5 D02B-1 D03B-7 D04B-7 D05E-9 D06E-10 D07D-12 D12F-14 D13C-1 D14A-1 D15C-3 D16B-3 D17E-12 D19B-3 D20C-3 D22E-14 D23E-14 D24E-12 D25E-12 D28D-2 D36F-14 D37F-15 IC01F-5

19、 IC02F-9 IC03F-1 IC04G-13 IC05C-6 IC06C-1 IC07D-5 IC08C-2 IC10G-14 IC11E-15 Q01F-7 Q02G-7 Q03E-9 Q04E-8 Q05G-10 Q05AH-15 Q06G-9 Semiconductor Location Ref. No.Location Q06AG-14 Q07G-5 Q08G-4 Q09F-3 Q10G-4 Q11G-4 Q12G-3 Q12AG-3 Q13F-3 Q13AG-3 Q14E-1 Q15F-1 Q16G-2 Q17G-2 Q18G-2 Q19B-2 Q20D-11 Q21B-3 Q

20、22C-2 Q23C-2 Q24C-2 Q25D-2 Q26C-3 Q27D-3 Q29C-7 Q30C-7 Q31C-7 Q32C-7 Q33C-7 Q34D-7 Q35C-6 Q36C-6 Q37B-12 Q38C-7 Q39G-12 Q40G-12 Q41H-13 Q42B-12 Q43C-13 Q44E-14 Q45G-10 Note: The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specifie

21、d. 25 3-6.IC BLOCK DIAGRAMS IC02CXA1561S 1234567891011 2221201918171615141312 IREF IREF PBIN2 LINEIN2 MPXIN2 MPXOUT2 LINEOUT2 TCH2 TCL2 RECOUT2 NRSW MOA MOA HLS SSK HDETLDETLLS VEE VEE VCC HLSHDETLDETLLS REC AMP SSK REC AMP Mode Control VCC MODE RECOUT1 TCL1 TCH1 LINEOUT1 MPXOUT1 MPXIN1 LINEIN1 PBIN

22、1 VCT IC01PC4570HA 123456789 OUT1 IN1 +IN1 VEE +IN2 IN2 OUT2 VCC VCC IC03CXA1598S GHCAL GPCAL GL GH GP RECCAL NC REC IN REF BOOST VCC REC OUT VEE REC OUT 202122232419 18 17 16 15 14 13 1211 F/Q FQ FM FPCAL DGND MUTE NC REC IN GND BOOST 123456789 10 PARA METER CTRL 26 ON/OFF CURRENT LIMITER START CIR

23、CUIT VREF OVER HEAT PROTECT ON/OFF CURRENT LIMITER 12345678910 VCC VMUTEVCC VREF ERROR AMP VREF ERROR AMP VO1 VCC CN1 EN EN DISPLAY GND NC CN2 VEE VO2 _1.8V _140uA COMPARATER 12345678910 GND MOTOR DRIVE NOISE FILTER CLAMP FWD.IN REV.IN VCC 1 VCC 2 NOISE FILTER MOTOR DRIVE MOTOR DRIVE MOTOR DRIVE T.S

24、.DO.C.P FWD/REV/STOP CONTROL LOGIC IC04LA5617 IC06LB1641 27 Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 I/O O I I I I O O O O I I I I I I/O I/O I I I O O O O I I I I I I I I I/O O O O O O Description System gro

25、und terminal System clock output (8 MHz) System clock input (8 MHz) Reset input No used No used Test terminal Primary power supply ON/OFF input Mechanism. AU power supply ON/OFF output Type 4 recording bias selector output Type 2 recording bias selector output Type 1 recording bias selector output T

26、ape type 2 input Tape type 4 input Record safety tab input of side A Record safety tab input of side A Head sensor input 12C clock input/output 12C data input/output Loader open switch input Loader close switch input TEST input Solenoid output Capstan motor output Loader open (motor) output Loader c

27、lose (motor) output Panel switch input Option TC version input No used AD ground terminal AD reference voltage System power input Key 1 input Key 2 input Half switch input AMS input Pulse input Meter L-CH input I2C BUSY input/output No used REC/PB selector output RELAY selector output Bias selector

28、output LINE mute selector output Record mute selector output Pin Name VSS OSC-OUT OSC-IN RESET NC NC TEST POWER-IN POWER-OUT TYPE4 TYPE2 TYPE1 CHROM-SW METAL-SW REC.FWD-SW REC.REW-SW MODE-SW I2C-CLOCK I2C-DATA OPEN-SW CLOSE-SW TEST SOLENOIDE CAPSTAN OPEN-M CLOSE-M PANEL-SW OP-VERSION NC AD-GND AD-RE

29、F VCC KEY1 KEY2 HALF-SW AMS-IN PULSE METER-L/R I2C-BUSY SYS REC/PB RELAY BIAS LINE MUTE REC MUTE 3-7.IC PIN FUNCTION DESCRIPTION CONTROL BOARD IC05 TMP87CH48DF (SYSTEM CONTROL) 28 Pin No. 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 I/O O O O O O O O O O O O O O O O O O O O Description P

30、layback mute selector output Dolby ON/OFF output Dolby B/C output No used Power ON LED (green) output Panel LED (blue) output Level meter 1 (minimum dB) LED (green) output Level meter 2 LED (green) output Level meter 3 LED (green) output Level meter 4 LED (red) output Level meter 5 (maximum dB) LED

31、(red) output Tape indicator LED (amber) output CD synchro LED (red) output REC LED (red) output PAUSE LED (orange) output REW LED (amber) output FF LED (amber) output REV LED (green) output FWD LED (green) output Pin Name PB MUTE DOLBY ON/OFF DOLBY B/C STB-R-LED STB-G-LED PANEL-LED LEBEL1-LED LEVEL2

32、-LED LEVEL3-LED LEVEL4-LED LEVEL5-LED TAPE-LED CDSYNC-LED REC-LED PAUSE-LED REW-LED FF-LED REV-LED FWD-LED 29 SECTION 4 MECHANICAL ADJUSTMENT SECTION 5 ELECTRICAL ADJUSTMENT Torque Measurement Tape Tension Precaution 1.Clean the following parts with a denatured alcohol-moistened swab: record/playbac

33、k headspinch rollers erase headrubber belts capstanidlers 2.Do not use a magnetized screwdriver for the adjustments. 3.After the adjustments, apply suitable locking compound to the parts adjusted. 4.The adjustments should be performed with the rated power supply voltage unless otherwise noted. 31 to

34、 61 g cm 2 to 6 g cm 36 to 61 g cm 2 to 6 g cm 61 to 143 g cm Mode FWD FWD back tension REV REV back tension FF/REW Torque meter CQ-102C CQ-102RC CQ-201B Meter reading FWD tension REV tension CQ-403A CQ-403R 100 g or more 100 g or more Precaution 1.Perform adjusting on the test mode. 2.Demagnetize t

35、he record/playback head with a head demagnetizer. 3.Do not use a magnetized screwdriver for the adjustments. 4.After the adjustments, apply suitable locking compound to the parts adjust. 5.The adjustments should be performed with the rated power supply voltage unless otherwise noted. 6.The adjustmen

36、ts should be performed in the order given in this service manual. (As a general rule, playback circuit adjustment should be completed before performing recording circuit adjustment.) 7.The adjustments should be performed for both L-CH and R- CH. 8.Switches should be set as follows. DOLBY NR.OFF DIRE

37、CTION .A Standard Recording Position Adjust the REC LEVEL (VR02) control so that the standard input/ output signal level is obtained in the following connection. Record Mode Standard Input Level Input terminalLINE IN source impedance10k input signal level0.5V (3.8dB) Standard Output Level Output ter

38、minalLINE OUT load impedance47kW output signal level0.5V (3.8dB) 0dB = 0.775 V Test Mode Turn OFF the main power and insert the shorting plug to the test point CN13 (2P) on the CONTROL board (setting IC05 pin 22 to “L”). Then turn ON the main power which activate the TEST mode. All displays flash on

39、ce. If a recording is performed in the TEST mode, the REC MEMORY mode becomes active at the moment of recording so that the tape is rewound by the amount of recording when a tape is rewound after recording. After adjustment, be sure to remove the shorting plug from the test point CN13 (2P). Test Tap

40、e TypeSignalUsed for P-4-A10010 kHz, 10 dBAzimuth Adjustment WS-48B3 kHz, 0 dBTape Speed Adjustment P-4-L300315 Hz, 0 dBPB Level Adjustment 10k 47k 600 audio oscillator attenuator LINE INLINE OUT level meter set 30 L-CH peak L-CH peak R-CH peak R-CH peak screw position output level within 1dBwithin

41、1dB angle of adjustment screw 4.Enter the FWD mode and perform steps 1 to 3. 5.Check that the phase difference between L-CH and R-CH is in the range of in-phase to 90. 6.After adjustment, lock the screw with locking compound. Adjustment Location: Tape Speed Adjustment Procedure : Mode : FWD playback

42、 1.Enter the FWD playback mode, and play back test tape. 2.Adjust the adjustment control (variable resistor) of the motor (M902) until the frequency counter reading becomes 3,000 Hz 90 Hz. 3.Confirm that the tape speed deviation between tape top and tape end is within 3%. Adjustment location : test

43、tape P-4-A100 (10kHz, 10dB) set LINE OUT 47k level meter Record/Playback Head Azimuth Adjustment Note: Perform this adjustment after the head is turned around. (If the head is positioned in the FWD direction, turn around the head and start adjustment from the REV mode as described below.) * When the

44、 azimuth adjustment is performed, the azimuth adjustment screw must end up with rotation of tightening direction (i.e. clockwise direction). Adjustment procedure : 1.Mode: REV playback 2.Turn the azimuth adjustment screw for the maximum output level of L-CH and R-CH. If the peak levels do not match

45、for L-CH and R-CH, turn the adjustment screw until both of output levels match together within 1 dB of peak. 3.Phase Check Mode: REV playback test tape P-4-A100 (10kHz, 10dB) L-CH R-CH set 47k 47k oscilloscope LINE OUT VH Oscilloscope Lissajous waveform in phase45 90 180 135 GoodWrong Adjustment scr

46、ew (FWD side)Adjustment screw (REV side) test tape WS-48B (3kHz, 0dB) set L- or R-CH of LINE OUT 47k frequency counter M902 adjustment control (variable resistor) Sample Value of Wow and flutter W. RMS (JIS) within 0.3% (test tape: WS-48B) 31 Playback Level Adjustment Procedure : 1.Mode : FWD playba

47、ck Adjust SFR01 (L-CH) and SFR02 (R-CH) so that the reading on level meter meets the adjustment limits below. Adjustment Limits : LINE OUT level : -7.7 0.5 dB (301.5 to 338.5 mV) Level difference between channels : within 0.5 dB Check that the LINE OUT level does not change even if Playback and Stop

48、 operations are repeated several times. Adjustment Location : DOLBY board (Refer to page 32.) Record BIAS Adjustment Setting : The REC LEVEL control must be positioned at the standard record level position. (Refer to page 29.) Procedure : 1.Mode: Record 2.Playback 3.Reproduce the portion of tape which is recorded in step 1. Confirm that the playback level stays within the specified range of the Adjustment Level. 4.If the playback level is outside the specified range, adjust the SFR03 (L-CH) and SFR04 (R-CH), and repeat steps 1 to 3 until the