Sony-TC-SP55-Service-Manual电路原理图.pdf

TC-SP55 SERVICE MANUAL TC-SP55 is the deck section in CMT-SP55TC, and TC-SP55 is sold in the option as a tape deck of CMT-SP55MD. SPECIFICATIONS STEREO CASSETTE DECK Model Name Using Similar MechanismNEW Tape Transport Mechanism TypeCMAL2Z720A AEP Model UK Model E Model Recording system4-track 2-channel stereo Frequency response(DOLBY NR OFF) 40 14,000 Hz (3 dB) using Sony TYPE I cassettes 40 15,000 Hz (3 dB), using Sony TYPE II cassettes General Dimensions (w/h/d) incl. projecting parts and controls Approx. 202 x 101 x 283 mm MassApprox. 1.9 kg Supplied accessorySystem cable (1) Design and specifications are subject to change without notice. RadioFans.CN 收音机爱 好者资料库 2 MODEL IDENTIFICATION BACK PANEL TABLE OF CONTENTS 1. SERVICING NOTE 3 2. GENERAL 5 3. DISASSEMBLY 3-1.Case 6 3-2.Front Panel Assy 6 3-3.Mechanism Assy 7 3-4.Main Board 7 3-5.Pinch Roller BLK Assy, Belt 8 4. TEST MODE 9 5. MECHANICAL ADJUSTMENTS 11 6. ELECTRICAL ADJUSTMENTS 11 7. DIAGRAMS 7-1.Block Diagram 15 7-2.Schematic Diagram Main Section 16 7-3.Printed Wiring Board Main Section 17 7-4.Schematic Diagram Panel Section 18 7-5.Printed Wiring Board Panel Section 18 7-6.IC Pin Functions 19 7-7.IC Block Diagrams 20 8. EXPLODED VIEW 8-1.Case and Front Panel 21 9. ELECTRICAL PARTS LIST 22 Abbreviation AED: North European model MY: Malaysia model SP: Singapore model MODEL AEP, UK, AED models MY, SP models PARTS No. 4-229-654-0s 4-229-654-2s Parts No. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 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 PUBLISHED BY SONY. RadioFans.CN 收音机爱 好者资料库 3 SECTION 1 SERVICING NOTE This unit cannot be repaired by itself. When repairing, connect the whole system except for the speaker. MC Test Mode Procedure : 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 tape either 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 AMS END (Shut off) (Shut off) Cold Reset When the AC cord is removed, COLD RESET is done with TC-SP55. ST Test Mode Procedure : 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 rotating in the counterclockwise diretion. (The TC-SP55 is not count.) 8. To exit from this mode, disconnect the power cord. 4 Aging 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 TOC Playback of first track (3sec.) Playback of last track (3sec.) CD tray open CD tray close CD :Cassette : REW(Shut off)TAPE AG-1 PLAY FF REV PLAY REW (20 sec)TAPE AG-2 (20 sec)TAPE AG-3 (20 sec)TAPE AG-4 (20 sec)TAPE AG-5 FF search REW search OPEN CLOSE (20 sec)TAPE AG-6 (20 sec)TAPE AG-7 TAPE AG-8 TAPE AG-9 6. To end aging, execute the cold reset. Error History Display Mode Mode 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.) 5 SECTION 2 GENERAL 1CD SYNC REC button 2CD SYNC REC indicator 3z REC button 4z REC indicator 5h indicator 6H indicator 7S indicator 8A button 1425678 9 0 qaqsqdqfqgqh 3 9M L button q;l m button qas button qsS button qdH button qfh button qgDIRECTION button qhDOLBY NR button 6 3-1. CASE 3-2. FRONT PANEL ASSY Note: Follow the disassembly procedure in the numerical order given. SECTION 3 DISASSEMBLY SetCaseFront Panel AssyMechanism Assy (Page 7) Main Board (Page 7)Pinch Roller BLK Assy, Belt (Page 8) 1 two screws (case 3 TP2) 4 case 1 two screws (case 3 TP2) 2 2 3 1 connector (CN702) 4 screw (BVTP 3x8) 5 front panel assy 2 two screws (BVTP 3x12) 3 two foot assys claws claws 7 3-3. MECHANISM ASSY 3-4. MAIN BOARD 2 two screws (BVTP 3x10) 3 mechanism assy 2 two screws (BVTP 3x10) 1 connector (CN601) 1 connector (CN602) 1 connector (CN101) 2 claw 2 claw 1 three screws (BVTP 3x8) 4 three screws (BVTP 3x8) 3 5 main board 8 3-5. PINCH ROLLER BLK ASSY, BELT 1 two screws belt main F/R belt 2 mechanism deck 3 claw 4 pinch roller BLK R assy 6 pinch roller BLK L assy 5 claw 1 two screws 7 belt main 8 F/R belt 9 4-1-4. TC REC START POINT Procedure: 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 4 TEST MODE 4-1.TEST MODE FOR NOT CONNECTING THE WHOLE SYSTEM (When connecting TA-SP55,ST-SP55,TC-SP55) 4-1-1. SETTING THE TEST MODE Procedure: 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 MODE Procedure: 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-1 FWD FF REV REW (20 sec)TAPE AG-2 (20 sec)TAPE AG-3 (20 sec)TAPE AG-4 (20 sec) (20 sec) (20 sec) TAPE AG-5 FF search REW search OPEN CLOSE TAPE AG-6 TAPE AG-7 TAPE AG-8 TAPE AG-9 4-1-3. TC AMS CHECK Procedure: 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. 10 4-2.TEST MODE FOR CONNECTING THE WHOLE SYSTEM 4-2-1. 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 TOC Playback of first track (3sec.) Playback of last track (3sec.) CD tray open CD tray close CD :Cassette : REW(Shut off)“TAPE AG-1” PLAY FF REV PLAY REW (20 sec)“TAPE AG-2” (20 sec)“TAPE AG-3” (20 sec)“TAPE AG-4” (20 sec)“TAPE AG-5” FF search REW search OPEN CLOSE (20 sec)“TAPE AG-6” (20 sec)“TAPE AG-7” TAPE AG-8 TAPE AG-9 6. To end aging, execute the cold reset. 11 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) 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-102C CQ-102C CQ-102RC CQ-102RC CQ-201B CQ-403A CQ-403R Precaution 1. Clean the following parts with a denatured alcohol-moistened swab: record/playback headspinch rollers erase headrubber belts capstanidlers 2. 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 the parts adjusted. 5. The adjustments should be performed with the rated power sup- ply voltage unless otherwise noted. Torque Measurement SECTION 5 MECHANICAL ADJUSTMENTS Mode FWD FWD back tension REV REV back tension FF/REW FWD tension REV tension Torque meter Meter reading SECTION 6 ELECTRICAL ADJUSTMENTS 2. Turn the adjustment screw and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1 dB of peak. Record/Playback Head Azimuth Adjustment Procedure: 1. Mode : FWD playback TapeSignalUsed for P-4-A100 WS-48B P-4-L300 10 kHz, 10 dB 3 kHz, 0 dB 315 Hz, 0 dB Azimuth Adjustment Tape Speed Adjustment Level Adjustment tast tape P-4-A100 (10kHz, 10dB) set AUX OUT (on ST-SP55) 47k level meter L-CH peak R-CH peak screw position output level within 1 dB L-CH peak R-CH peak screw position within 1dB 0 DB=0.775V Note:Before starting the adjustment, measure performance of the machine. Perform adjustment only when the measured performances 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 the parts adjusted. 4. The adjustments should be performed with the rated power supply voltage unless otherwise noted. completed before performing recording circuit adjustment.) 5. The adjustments 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 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 otherwise specified. 12 3. Phase check Model: FWD playback test tape P-4-A100 (10kHz, 10dB) R-CH L-CH set 47kW 47kW oscilloscope AUX OUT (on ST-SP55) VH 4. Perform steps 1 to 3 in the FWD playback mode. 5. Confirm that phase error between L-ch and R-ch is in the range of same phase to 90 degrees. 6. After the adjustments, apply suitable locking compound to the parts adjusted. Adjustment Location: Waveform of oscilloscope in phase4590135180 goodwrong Tape Speed Adjustment Procedure: 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 the frequency counter becomes 3000 90 Hz. Adjustment Location: MAIN board Sample Value of Wow and flutter W.RMS (JIS) less than 0.3% (test tape: WS-48B) test tape WS-48B (3kHz, 0dB) set AUX OUT (on ST-SP55) level meter Adjust RV211 (L-CH) and RV261 (R-CH), so that adjustment within the 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 dB Confirm that the AUX OUT level does not change even though play and stop are repeated. Playback Level Adjustment Procedure: Mode: FWD playback test tape P-4-L300 (315Hz, 0dB) set AUX OUT (on ST-SP55) level meter Record Bias Adjustment Procedure: 1. Record mode. AF OSC AUX IN (on ST-SP55) 1) 315 Hz 2) 10 kHz blank tape CS-123 set attenuator 600 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 adjustment 4. 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 adjust 315 Hz reference should be 0 dB 0.5 dB. recorded position set AUX OUT (on ST-SP55) level meter Adjustment scerw (FWD mode) Adjustment scerw (REV mode) 13 Record Level Adjustment Procedure: 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 board AF OSC AUX IN (on ST-SP55) 315Hz 50 mV (23.8 dB) blank tape CS-123 set attenuator 600 recorded position set AUX OUT (on ST-SP55) level meter RV311 (L-CH), RV361 (R-CH) RECORD BIAS RV211 (L-CH), RV261 (R-CH) PB LEVEL RV401 (L-CH), RV451 (R-CH) REC LEVEL TAPE SPEED RV362 RV311 RV361 RV211 RV261 RV451 RV401 14 SECTION 7 DIAGRAMS THIS