Sony-TCSP55-tape-sm 维修电路原理图.pdf

TC-SP55SERVICE MANUALTC-SP55 is the deck section in CMT-SP55TC,and TC-SP55 is sold in the option as a tapedeck of CMT-SP55MD.SPECIFICATIONSSTEREO CASSETTE DECKModel Name Using Similar MechanismNEWTape Transport Mechanism TypeCMAL2Z720AAEP ModelUK ModelE ModelRecording system4-track 2-channel stereoFrequency response(DOLBY NR OFF)40 14,000 Hz (3 dB)using Sony TYPE I cassettes40 15,000 Hz (3 dB),using Sony TYPE II cassettesGeneralDimensions (w/h/d) incl. projecting parts and controlsApprox. 202 x 101 x 283 mmMassApprox. 1.9 kgSupplied accessorySystem cable (1)Design and specifications are subject to change without notice.RadioFans.CN 收音机爱 好者资料库2MODEL IDENTIFICATION BACK PANEL TABLE OF CONTENTS1. SERVICING NOTE 32. GENERAL 53. DISASSEMBLY3-1.Case 63-2.Front Panel Assy 63-3.Mechanism Assy 73-4.Main Board 73-5.Pinch Roller BLK Assy, Belt 84. TEST MODE 95. MECHANICAL ADJUSTMENTS 116. ELECTRICAL ADJUSTMENTS 117. DIAGRAMS7-1.Block Diagram 157-2.Schematic Diagram Main Section 167-3.Printed Wiring Board Main Section 177-4.Schematic Diagram Panel Section 187-5.Printed Wiring Board Panel Section 187-6.IC Pin Functions 197-7.IC Block Diagrams 208. EXPLODED VIEW8-1.Case and Front Panel 219. ELECTRICAL PARTS LIST 22 AbbreviationAED: North European modelMY: Malaysia modelSP: Singapore modelMODELAEP, UK, AED modelsMY, SP modelsPARTS No.4-229-654-0s4-229-654-2sParts No.SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTEDLINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMSAND IN THE PARTS LIST ARE CRITICAL TO SAFEOPERATION. REPLACE THESE COMPONENTS WITHSONY PARTS WHOSE PART NUMBERS APPEAR ASSHOWN IN THIS MANUAL OR IN SUPPLEMENTSPUBLISHED BY SONY.RadioFans.CN 收音机爱 好者资料库3SECTION 1SERVICING NOTEThis unit cannot be repaired by itself.When repairing, connect the whole system except for the speaker.MC Test ModeProcedure :1. When the power ON, press the ?/1 button (TA) while pressing TUNING MODE button (ST) and REPEAT button (CDP) together.2. Frame of the MD mark and the CD mark flash, and “BASS/TRE FLAT” appears for a moment.3. When the VOLUME knob (TA) is turned clockwise, “VOLUME MAX” appears for a moment.4. When the VOLUME knob (TA) is turned counterclockwise, “VOLUME MIN” appears for a moment.5. Select the function “TAPE” using the FUNCTION knob (TA).Set the test tape AMS-110A or AMS-120.6. Press DIRECTION button (TC) to enter either “j” (loop) or “h” (two way).7. Press the CD SYNC REC button (TC) to start the AMS test.8. Number of AMS signals is counted during the AMS test and the message “EDG#” (# means a number) appears. When the test tapeeither AMS-110A or AMS-120 is used, the AMS signal is detected twice before shut off.9. When the AMS test ends, either “OK” or “NG” appears.10.To exit the MC test mode, either press the ?/1 button (TA) or perform the cold reset as described above.(FWD) REW(Shut off)(FWD) FF AMS(FWD) REW AMSEND(Shut off)(Shut off)Cold Reset When the AC cord is removed, COLD RESET is done with TC-SP55.ST Test ModeProcedure :1. When the power ON, press the ?/1 button (TA) while pressing the TUNING MODE button (ST) and PLAY MODE buttons (CDP)together.2. LCD are all turned on.3. Press TUNING MODE button (ST) to enter the model destination indecation mode. “SP55 CE2” or “SP55 ASIA2” appears.4. Every pressing of TUNING MODE button (ST) changes the display in the following order.MC Version t CD Version t ST Version t TC Version t TA Version t TM Version t model destination display.5. Press DISPLAY button (ST) and the date appears as “ 00615a ”Every pressing of DISPLAY button (ST) changes the display in the Version display and model destination display.6. Press TUNER/BAND button (ST) to enter the key check mode.7. In the key check mode, the fluorescent indicator tube displays “Key 0 Vol 0”. Each time a button is pressed, “Key” value increases.However, once a button is pressed, it is no longer taken into account.“Vol” Value increases like “1, 2, 3 .” if rotating VOLUME knob (TA) in the clockwise direction, or decreases like “0, 9, 8 .” if rotatingin the counterclockwise diretion. (The TC-SP55 is not count.)8. To exit from this mode, disconnect the power cord.4Aging Mode Mode for repeating operations of the CD player and TC deck automatically.When errors occur:Aging stops and a message indicating that an error has occurred such as “CD MEC ERR” is displayed.(For details of errors, refer to “Error History Display Mode”.)When no errors occur:Aging is repeatedly performed.Procedure:1. Load any CD and a tape.2. Select the function “CD” using the FUNCTION knob (TA).3. While pressing the TUNING MODE button (ST) and H button (CDP), press the ?/1 button (TA).4. “AGING” is displayed on the LCD briefly.5. Operations are performed in the following sequence during aging.Every pressing of DISPLAY button (ST) changes the display in the CD display and TAPE display.Reading of TOCPlayback of first track (3sec.)Playback of last track (3sec.)CD tray openCD tray closeCD :Cassette :REW(Shut off)TAPE AG-1PLAYFFREV PLAYREW(20 sec)TAPE AG-2(20 sec)TAPE AG-3(20 sec)TAPE AG-4(20 sec)TAPE AG-5FF searchREW searchOPENCLOSE(20 sec)TAPE AG-6(20 sec)TAPE AG-7TAPE AG-8TAPE AG-96. To end aging, execute the cold reset.Error History Display ModeMode for checking the history of errors which have occurred in the CD player.Execute this mode after ending the aging mode.Procedure:1. Select the function “CD” using the FUNCTION knob (TA).2. While pressing the TUNING MODE button (ST) and S button (CDP), press the ?/1 button (TA).3. “EMCEDC*” id displayed.: Number of mechanism errors (Last 3 errors)*: Number of errors (NO DISC ERROR) which occurred after chucking (Last 3 errors)4. To end, press the ?/1 button (TA) and turn OFF the power.5. To erase the error history, perform cold reset.(While pressing the TUNING MODE button (ST) and M L button (CDP), press the ?/1 button.)5SECTION 2GENERAL1CD SYNC REC button2CD SYNC REC indicator3z REC button4z REC indicator5h indicator6H indicator7S indicator8A button142567890qaqsqdqfqgqh39M L buttonq;l m buttonqas buttonqsS buttonqdH buttonqfh buttonqgDIRECTION buttonqhDOLBY NR button63-1. CASE3-2. FRONT PANEL ASSYNote: Follow the disassembly procedure in the numerical order given.SECTION 3DISASSEMBLYSetCaseFront Panel AssyMechanism Assy (Page 7)Main Board (Page 7)Pinch Roller BLK Assy, Belt (Page 8)1 two screws (case 3 TP2)4 case1 two screws (case 3 TP2)2231 connector (CN702)4 screw (BVTP 3x8)5 front panel assy2 two screws (BVTP 3x12)3 two foot assysclawsclaws73-3. MECHANISM ASSY3-4. MAIN BOARD2 two screws (BVTP 3x10)3 mechanism assy2 two screws (BVTP 3x10)1 connector (CN601)1 connector (CN602)1 connector (CN101)2 claw2 claw1 three screws (BVTP 3x8)4 three screws (BVTP 3x8)35 main board83-5. PINCH ROLLER BLK ASSY, BELT1 two screwsbelt mainF/R belt2 mechanism deck3 claw4 pinch roller BLK R assy6 pinch roller BLK L assy5 claw1 two screws7 belt main8 F/R belt94-1-4. TC REC START POINTProcedure:1. Set the test mode, and press the REC button (TC) and then the H button (TC) to set the recording state.2. Pressing the CD SYNC REC button (TC) returns to the starting point of recording.SECTION 4TEST MODE4-1.TEST MODE FOR NOT CONNECTING THE WHOLE SYSTEM(When connecting TA-SP55,ST-SP55,TC-SP55)4-1-1. SETTING THE TEST MODEProcedure:1. When the power ON, press the ?/1 button (TA) while pressing the s button (TC) and CD SYNC REC buttons (TC) together.2. When the test mode is set, the PAUSE LED will light up for 0.1 seconds at intervals of 3.2 seconds.3. To exit the test mode, either press the ?/1 button (TA) and turn OFF the power.4-1-2. TC AGING MODEProcedure:1. After setting the test mode, press the H button (TC).2. Operations are performed in the following sequence during aging.REW(Shut off)TAPE AG-1FWDFFREVREW(20 sec)TAPE AG-2(20 sec)TAPE AG-3(20 sec)TAPE AG-4(20 sec)(20 sec)(20 sec)TAPE AG-5FF searchREW searchOPENCLOSETAPE AG-6TAPE AG-7TAPE AG-8TAPE AG-94-1-3. TC AMS CHECKProcedure:1. After setting the test mode, pressing the s button (TC) and then the CD SYNC REC button (TC) will start REW operations.2. After rewinding to the tape top,FF search in the FWD direction starts.“TAPE EDG*” will be displayed.(*: Arbitrary number)3. After FF searching to the tape end, the tape will be automatically stopped, and “TAPE OK” or “TAPE NG” will be displayed.104-2.TEST MODE FOR CONNECTING THE WHOLE SYSTEM4-2-1. TC Aging Mode (Connecting The Whole System) Mode for repeating operations of the CD player and TC deck automatically.When errors occur:Aging stops and a message indicating that an error has occurred such as “CD MEC ERR” is displayed.(For details of errors, refer to “Error History Display Mode”.)When no errors occur:Aging is repeatedly performed.Procedure:1. Load any CD and a tape.2. Select the function “CD” using the FUNCTION knob(TA) .3. While pressing the TUNING MODE button (ST) and H button (CDP), press the ?/1 button (TA).4. “AGING” is displayed on the fluorescent display tube briefly.5. Operations are performed in the following sequence during aging.Every pressing of DISPLAY button (ST) changes the display in the CD display and TAPE display.Reading of TOCPlayback of first track (3sec.)Playback of last track (3sec.)CD tray openCD tray closeCD :Cassette :REW(Shut off)“TAPE AG-1”PLAYFFREV PLAYREW(20 sec)“TAPE AG-2”(20 sec)“TAPE AG-3”(20 sec)“TAPE AG-4”(20 sec)“TAPE AG-5”FF searchREW searchOPENCLOSE(20 sec)“TAPE AG-6”(20 sec)“TAPE AG-7”TAPE AG-8TAPE AG-96. To end aging, execute the cold reset.113.04 6.96 N m(31 to 71 g cm)(0.43 0.98 oz inch)0.20 0.58 N m(2 to 6 g cm)(0.02 0.08 oz inch)3.04 6.96 N m(31 to 71 g cm)(0.43 0.98 oz inch)0.20 0.58 N m(2 to 6 g cm)(0.02 0.08 oz inch)6.97 14.02 N m(71 to 143 g cm)(0.98 1.99 oz inch)0.98 N m or more(100 g or more)(3.53 oz or more)0.98 N m or more(100 g or more)(3.53 oz or more)CQ-102CCQ-102CCQ-102RCCQ-102RCCQ-201BCQ-403ACQ-403RPrecaution1. Clean the following parts with a denatured alcohol-moistenedswab:record/playback headspinch rollerserase headrubber beltscapstanidlers2. Demagnetize the record/playback head with a head demagne-tizer.3. Do not use a magnetized screwdriver for the adjustments.4. After the adjustments, apply suitable locking compound to theparts adjusted.5. The adjustments should be performed with the rated power sup-ply voltage unless otherwise noted.Torque MeasurementSECTION 5MECHANICAL ADJUSTMENTSModeFWDFWDback tensionREVREVback tensionFF/REWFWD tensionREV tensionTorque meterMeter readingSECTION 6ELECTRICAL ADJUSTMENTS2. Turn the adjustment screw and check output peaks. If the peaksdo not match for L-CH and R-CH, turn the adjustment screw sothat outputs match within 1 dB of peak.Record/Playback Head Azimuth AdjustmentProcedure:1. Mode : FWD playbackTapeSignalUsed forP-4-A100WS-48BP-4-L30010 kHz, 10 dB3 kHz, 0 dB315 Hz, 0 dBAzimuth AdjustmentTape Speed AdjustmentLevel Adjustmenttast tapeP-4-A100(10kHz, 10dB)setAUX OUT(on ST-SP55)47klevel meterL-CHpeakR-CHpeakscrewpositionoutputlevelwithin1 dBL-CHpeakR-CHpeakscrewpositionwithin 1dB0 DB=0.775VNote:Before starting the adjustment, measure performance of themachine. Perform adjustment only when the measuredperformances do not satisfy the specifications.1. Demagnetize the record/playback head with a head demagnetizer.2. Do not use a magnetized screwdriver for the adjustments.3. After the adjustments, apply suitable locking compound to theparts adjusted.4. The adjustments should be performed with the rated power supplyvoltage unless otherwise pleted before performing recording circuit adjustment.)5. The adjustments should be performed in the order given in thisservice manual. (As a general rule, playback circuit adjustmentshould be completed before performing recording circuit adjust-ment.)6. The adjustments should be performed for both L-CH and R-CH.7. Switches and controls should be set as follows unless otherwisespecified.123. Phase checkModel: FWD playbacktest tapeP-4-A100(10kHz, 10dB)R-CHL-CHset47kW47kWoscilloscopeAUX OUT(on ST-SP55)VH4. Perform steps 1 to 3 in the FWD playback mode.5. Confirm that phase error between L-ch and R-ch is in the rangeof same phase to 90 degrees.6. After the adjustments, apply suitable locking compound to theparts adjusted.Adjustment Location:Waveform of oscilloscopein phase4590135180goodwrongTape Speed AdjustmentProcedure:1. Insert the WS-48B into deck.2. Press the H button of deck.3. Adjust RV362 of the MAIN board so that the reading of thefrequency counter becomes 3000 90 Hz.Adjustment Location: MAIN boardSample Value of Wow and flutterW.RMS (JIS) less than 0.3%(test tape: WS-48B)test tapeWS-48B(3kHz, 0dB)setAUX OUT(on ST-SP55)level meterAdjust RV211 (L-CH) and RV261 (R-CH), so that adjustment withinthe following adjustment level.Adjustment level:AUX OUT level: 8.2 0.5 dB (285 to 319 mV)Level difference between the channels: within 1.0 dBConfirm that the AUX OUT level does not change even thoughplay and stop are repeated.Playback Level AdjustmentProcedure:Mode: FWD playbacktest tapeP-4-L300(315Hz, 0dB)setAUX OUT(on ST-SP55)level meterRecord Bias AdjustmentProcedure:1. Record mode.AF OSCAUX IN (on ST-SP55)1) 315 Hz2) 10 kHzblank tapeCS-123setattenuator600 50 mV (23.8 dB)2. Playback mode.3. Confirm playback the signal recorded in step 1 become adjust-ment level as follows.Note:You had better to refer “4-1-4. TC REC START POINT”See page 9) when this adjustment4. If these levels do not adjustment level, adjust the RV311 (L-CH)and RV361 (R-CH), to repeat steps 1 to 3.Adjustment level:The playback outpout of 10 kHz level difference adjust315 Hz reference should be 0 dB 0.5 dB.recordedpositionsetAUX OUT(on ST-SP55)level meterAdjustment scerw(FWD mode)Adjustment scerw(REV mode)13Record Level AdjustmentProcedure:1. Record mode.2. Playback mode.3. Confirm playback the signal recorded in step 1 become adjust-ment level as follows.4. If these levels do not adjustment level, adjust the RV401 (L-CH)and RV451 (R-CH), on the MAIN board to repeat steps 1 to 3.Adjustment level:LINE OUT level: 21.8 dB 0.5 dB (59.5 to 66.7 mV)Adjustment Location: MAIN boardAF OSCAUX IN (on ST-SP55)315Hz 50 mV (23.8 dB)blank tapeCS-123setattenuator600 recordedpositionsetAUX OUT(on ST-SP55)level meterRV311 (L-CH),RV361 (R-CH)RECORD BIASRV211 (L-CH),RV261 (R-CH)PB LEVELRV401 (L-CH),RV451 (R-CH)REC LEVELTAPE SPEEDRV362RV311RV361RV211RV261RV451 RV40114SECTION 7DIAGRAMSTHIS NOTE IS COMMON FOR PRINTED WIRINGBOARDS AND SCHEMATIC DIAGRAMS.(In addition to this, the necessary note is printedin each block.)For schematic diagrams.Note: All capacitors are in F unless otherwise noted. pF: F50 WV or less are not indicated except for electrolyticsand tantalums. All resistors are in and 1/4 W or less unless otherwisespecified.f: internal component. 2 : nonflammable resistor. 5 : fusible resistor. C : panel designation.For printed wiring boards.Note: X : parts extracted from the component side. Y : parts extracted from the conductor side. b : Pattern from the side which enables seeing.(The other layers patterns are not indicated.) U : B+ Line. V : B L