Audio Products Service Sbletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: CFD-250/260/580/757/758/767/768 No. 332R1 Subject: Precautions When Replacing Optical Pick Up Block Date: October 26, 1995 KSS-360A Symptom: (**) The new optical pick up block has a plug in type flex connector which does not fit onto the old solder in type translation board. Solution: When replacing the optical pick up block with the solder in type flex, order a new translation board, p/n A-4910-578-A to plug into the new optical pick up block. Reference: FPR-P2354 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Filename: Directory: Template: Title: Subject: Author: Keywords: Comments: Creation Date: Revision Number: Last Saved On: Last Saved By: Total Editing Time: Last Printed On: AUD0332.SB J:\SBDOC\OCT95 C:\WINWORD\S_BULL.DOT Hoyt Wing Lee 10/26/95 2:45 PM 2 10/26/95 2:45 PM Hoyt Wing Lee 1 Minute 04/01/96 10:35 AM As of Last Complete Printing Number of Pages: 1 Number of Words: 128 (approx.) Number of Characters: 733 (approx.) ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: D-211 No. 333 Subject: Low RF Output Level Date: October 5, 1994 Symptom: (62) RF ouput level is low Solution: On the Main Board, change the value of the resistors listed below by installing the parts contained in the Chip Resistor Kit (X-4945-161-1). REF DESCRIPTION MAIN BOARD SUFFIX, - 11 SUFFIX, -12 R564, CHIP RESISTOR 56K (SIZE 1608) CHANGE CHANGE 565, 567, 568 R554, 566, 569 CHIP RESISTOR 120K (SIZE 1608) CHANGE CHANGE CN501 PIN 18 PATTE CHIP RESISTOR 91 (SIZE 1608) RN CHANGE NO CHANGE JR510 CHIP RESISTOR 91 (SIZE 1608) NO CHANGE CHANGE (Continued) Reference: Tokyo fax No. GA-94013 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. 333 Audio Products Service Bulletin No. 333 Filename: Directory: Template: Title: Subject: Author: Keywords: Comments: Creation Date: Revision Number: Last Saved On: Last Saved By: Total Editing Time: Last Printed On: AUD0333.SB J:\SBDOC\OCT94 C:\WINWORD\S_BULL.DOT Hoyt Wing Lee 10/05/94 10:27 AM 2 10/05/94 10:27 AM Hoyt Wing Lee 2 Minutes 04/01/96 10:22 AM As of Last Complete Printing Number of Pages: 3 Number of Words: 153 (approx.) Number of Characters: 873 (approx.) ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: CFD-560 No. 334 Subject: Cassette Door (B) Will Not Stay Closed Date: October 5, 1994 Symptom: (62) Cassette Door (B) Will Not Stay Closed Solution: Replace cassette door (B) with an improved one (same part number). Applicable serial numbers: 526061 and lower Reference: FPR-P0865 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx Filename: Directory: Template: Title: Subject: Author: Keywords: Comments: Creation Date: Revision Number: Last Saved On: Last Saved By: Total Editing Time: Last Printed On: AUD0334.SB J:\SBDOC\OCT94 C:\WINWORD\S_BULL.DOT Hoyt Wing Lee 10/05/94 10:30 AM 2 10/05/94 10:30 AM Hoyt Wing Lee 0 Minutes 04/01/96 10:24 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 112 (approx.) Number of Characters: 639 (approx.) ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: D-35 No. 335 Subject: Caution When Replacing The Spindle Motor Date: October 5, 1994 Symptom: (**) The new CLV Motor Assy has a different torque value than the old motor. Solution: When installing the new CLV Motor Assy, also change the value of C537 on the Main board. REF DESCRIPTION PART NUMBER FORMER NEW M901 CLV MOTOR ASSY A-3133-398-A X-4945-128-1 C537 CHIP CAPACITOR 1-163-017-00 (0.0047 UF) 0.001 UF (INCLUDED WITH CLV MOTOR ASSY) Reference: Tokyo fax No. GA-94012 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx Filename: Directory: Template: Title: Subject: Author: Keywords: Comments: Creation Date: Revision Number: Last Saved On: Last Saved By: Total Editing Time: Last Printed On: AUD0335.SB J:\SBDOC\OCT94 C:\WINWORD\S_BULL.DOT Hoyt Wing Lee 10/05/94 10:05 AM 2 10/05/94 10:05 AM Hoyt Wing Lee 0 Minutes 04/01/96 10:25 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 131 (approx.) Number of Characters: 752 (approx.) ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: WM-EX SERIES, WM-FX SERIES No. 336 Subject: Correct Pin Layout For IC LA4582M and LA4582NM Date: October 5, 1994 Symptom: (**) The pin layout for amplifier IC's LA4582M and LA4582NM is incorrectly shown in the service manual. Solution: The correct pin layout for the amplifier IC's LA4582M (8-759-161-54) and LA4582NM (8-759-179-73) is shown below. Note that the clipped corner is pin 27/28, while a circle mark is present at pin 1/36. Reference: Europe fax No. TC01194 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx Filename: Directory: Template: Title: Subject: Author: Keywords: Comments: Creation Date: Revision Number: Last Saved On: Last Saved By: Total Editing Time: Last Printed On: AUD0336.SB J:\SBDOC\OCT94 C:\WINWORD\S_BULL.DOT Hoyt Wing Lee 10/05/94 10:13 AM 2 10/05/94 10:13 AM Hoyt Wing Lee 0 Minutes 04/01/96 10:25 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 130 (approx.) Number of Characters: 742 (approx.) ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: WM-EX55 No. 337 Subject: Part Number Correction - Reference No. 60, Date: October 5, 1994 SPRING (P-R) Symptom: (**) The part number listed on page 15 of the Service Manual for Ref # 60, SPRING (P-R), is incorrect. Solution: Please note the correct part number as shown below. REF DESCRIPTION PART NUMBER INCORRECT CORRECT 60 SPRING (P-R) 3-376-057-01 3-379-056-01 Reference: Europe fax No. GA00594 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx Filename: Directory: Template: Title: Subject: Author: Keywords: Comments: Creation Date: Revision Number: Last Saved On: Last Saved By: Total Editing Time: Last Printed On: AUD0337.SB J:\SBDOC\OCT94 C:\WINWORD\S_BULL.DOT Hoyt Wing Lee 10/05/94 10:09 AM 2 10/05/94 10:09 AM Hoyt Wing Lee 0 Minutes 04/01/96 10:26 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 120 (approx.) Number of Characters: 686 (approx.) ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-1/2P No. 338 Subject: Availability Of New Test Disc, Type TDYS-1. Date: November 11, 1994 Symptom: (**) There is a new pre-mastered test disc available, type TDYS-1. The previous test disc (type TGYS-1) is still acceptable for adjustments and troubleshooting. Solution: The new test disc can be ordered from the National Parts Center as folllows: Reference: Technical News 93020 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx Filename: Directory: Template: Title: Subject: Author: Keywords: Comments: Creation Date: Revision Number: Last Saved On: Last Saved By: Total Editing Time: Last Printed On: AUD0338.SB J:\SBDOC\NOV94 C:\WINWORD\S_BULL.DOT Hoyt Wing Lee 11/11/94 9:13 AM 2 11/11/94 9:13 AM Hoyt Wing Lee 0 Minutes 04/01/96 9:57 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 126 (approx.) Number of Characters: 719 (approx.) ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-R2 No. 339 Subject: Preventing Damage To DC-DC Converter Flex Date: November 11, 1994 Cable Symptom: (**) The flex cable on the DC-DC converter may be damaged if care is not taken during disassembly of the unit, especially on early production units. Solution: Handle the unit with care while troubleshooting the unit. Reference: Ogawa FAX PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx Filename: Directory: Template: Title: Subject: Author: Keywords: Comments: Creation Date: Revision Number: Last Saved On: Last Saved By: Total Editing Time: Last Printed On: AUD0339.SB J:\SBDOC\NOV94 C:\WINWORD\S_BULL.DOT Hoyt Wing Lee 11/11/94 9:08 AM 2 11/11/94 9:08 AM Hoyt Wing Lee 0 Minutes 04/01/96 9:57 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 110 (approx.) Number of Characters: 629 (approx.) ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-1 No. 340 Subject: Does Not Record Digital Input Signals Date: November 11, 1994 (Display Shows "IN Analog"). Symptom: (55) The unit may not record digital input signals. Under this condition, the display indicates "IN Analog", implying that the unit does not know that digital signals are being input. Solution: This problem may be caused by ferrite bead FB307 being open. If this is the case, replace FB307. Reference: Technical News GA-94032 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx Filename: Directory: Template: Title: Subject: Author: Keywords: Comments: Creation Date: Revision Number: Last Saved On: Last Saved By: Total Editing Time: Last Printed On: AUD0340.SB J:\SBDOC\NOV94 C:\WINWORD\S_BULL.DOT Hoyt Wing Lee 11/11/94 9:02 AM 2 11/11/94 9:02 AM Hoyt Wing Lee 0 Minutes 04/01/96 9:57 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 138 (approx.) Number of Characters: 788 (approx.) ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: D-421SP No. 341 Subject: Dry Batteries Would Be Charged Date: November 16, 1994 Symptom: (22) Dry batteries would be charged. Solution: 1. Affix the RUBBER CUSHION to the location as shown in the drawing below. 2. Insert batteries into the set, then check that "CHARGING" does not light in the display of the set. Reference: Tokyo fax No. GA-94040 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx Filename: Directory: Template: Title: Subject: Author: Keywords: Comments: Creation Date: Revision Number: Last Saved On: Last Saved By: Total Editing Time: Last Printed On: AUD0341.SB J:\SBDOC\NOV94 C:\WINWORD\S_BULL.DOT Hoyt Wing Lee 11/16/94 2:34 PM 2 11/16/94 2:34 PM Hoyt Wing Lee 0 Minutes 04/01/96 9:57 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 123 (approx.) Number of Characters: 705 (approx.) ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-R2 No. 342 Subject: Noisy Recordings When Recording From Date: November 16, 1994 Microphone Input. Symptom: (54) Noise is recorded on the disc when recording from the microphone input. Solution: If the customer complains of this problem, implement the following changes. Applicable units: Main boards with suffix "-13" and lower. STEP ACTION REF/DESCRIPTION PART NUMBER 1 REMOVE LF301 2 ADD R142/242 (0 OHM) 1-218-990-11 ADD 20 MM LEAD WIRE PROCURE LOCALLY ADD CUSHION, 135 MM X 205 MM 3-831-441-11 (CUT TO 6MM X 15MM) 3 ADD CUSHION 4-967-222-01 4 ADD SHIELD PLATE ASSY. X-4945-008-1 (Continued) Reference: SOCAN Bulletin No. TC-94-024 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. 342 Step 1. Remove LF301 Step 2. Add R142, R242 Connect a 20 mm lead wire between pin 4 of IC302 and the land on the microphone jack. Cover the lead wire with a 6 mm x 15 mm cushion. (Continued) Audio Products Service Bulletin No. 342 Step 3. Clean the area around the Sony logo and the silk screened number "1-651-014-**" with a cloth moistened in alcohol. Attach the cushion (part number 4-967-222-01) between the edges of C522 and the letter "S" of the Sony logo. Make sure that the cushion does not make contact with any of he surrounding chip components. Step 4. Clean the area around IC601, IC602, and IC603 with a cloth moistened in alcohol. Remove the backing paper from the shield plate assy. Attach the shield plate assy as shown. Audio Products Service Bulletin No. 342 Filename: Directory: Template: Title: Subject: Author: Keywords: Comments: Creation Date: Revision Number: Last Saved On: Last Saved By: Total Editing Time: Last Printed On: AUD0342.SB J:\SBDOC\NOV94 C:\WINWORD\S_BULL.DOT Hoyt Wing Lee 11/16/94 2:13 PM 2 11/16/94 2:13 PM Hoyt Wing Lee 1 Minute 04/01/96 9:57 AM As of Last Complete Printing Number of Pages: 4 Number of Words: 265 (approx.) Number of Characters: 1,514 (approx.) ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-R2 No. 343 Subject: No Play Or Record. Date: November 11, 1994 Symptom: (12) The unit may not play or record. This problem may be caused by an open coil (L509) which prevents the sled motor from running. Solution: If this problem is found to be caused by L509 being open, replace it with the part shown below. Reference: Technical News GA-94014 (revised) PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx Filename: Directory: Template: Title: Subject: Author: Keywords: Comments: Creation Date: Revision Number: Last Saved On: Last Saved By: Total Editing Time: Last Printed On: AUD0343.SB J:\SBDOC\NOV94 C:\WINWORD\S_BULL.DOT Hoyt Wing Lee 11/11/94 9:18 AM 2 11/11/94 9:18 AM Hoyt Wing Lee 1 Minute 04/01/96 9:58 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 122 (approx.) Number of Characters: 698 (approx.) ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-R2 No. 344 Subject: No Operation From AC Adapter Or External Battery Date: November 11, 1994 Pack. Symptom: (11) The unit does not operate from the AC adapter or the external battery pack because a fusible link on the DC-DC converter has opened. The unit operates normally from a charged internal battery, but the opened fusible link prevents the battery from being recharged from the AC adapter. Solution: If this problem occurs, replace the fusible link on the sub board of the DC-DC converter. Reference: Technical News GA-94007 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx Filename: Directory: Template: Title: Subject: Author: Keywords: Comments: Creation Date: Revision Number: Last Saved On: Last Saved By: Total Editing Time: Last Printed On: AUD0344.SB J:\SBDOC\NOV94 C:\WINWORD\S_BULL.DOT Hoyt Wing Lee 11/11/94 9:24 AM 2 11/11/94 9:24 AM Hoyt Wing Lee 0 Minutes 04/01/96 9:59 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 146 (approx.) Number of Characters: 837 (approx.) ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-E2/R2 No. 345 Subject: Does Not Read Discs And/Or Audio Is Distorted. Date: November 18, 1994 Symptom: (53) The unit may intermittently not read discs. In other instances, the unit may intermittently have distorted audio. These problems may be caused by the ATRAC decoder IC or Shock Proof Memory Controller IC (or both). Solution: If the customer complains of these problems, replace the ICs with higher reliability ICs. The higher reliability ICs have the same type numbers and part numbers as the originals, but can be identified by manufacturing codes printed on the ICs themselves. The National Parts Center will only stock the higher reliability ICs. REF DESCRIPTION PART NUMBER IC602 IC, CXD2526AR 8-752-363-57 IC603 IC, CXD2531BR 8-752-365-90 Identifying higher reliability ICs: IC602 (CXD2526AR) Manufacturing code 412A26E and higher. IC-603 (CXD2531BR) Manufacturing code 412A83E and higher. Reference: GA2 FAX NF-1303 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx Filename: Directory: Template: Title: Subject: Author: Keywords: Comments: Creation Date: Revision Number: Last Saved On: Last Saved By: Total Editing Time: Last Printed On: AUD0345.SB J:\SBDOC\NOV94 C:\WINWORD\S_BULL.DOT Hoyt Wing Lee 11/18/94 2:11 PM 2 11/18/94 2:11 PM Hoyt Wing Lee 0 Minutes 04/01/96 9:59 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 197 (approx.) Number of Characters: 1,124 (approx.) ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: TCM-77V No. 346 Subject: Erratic Tape Drive Date: November 16, 1994 Symptom: (62) The unit may exhibit erratic tape drive, such as entering FF or REW when Play or Stop is pressed. These problems may be caused by mis-alignment of the head-base detect switch S901 and/or the main drive belt. Solution: Replace the original drive belt with an improved type as shown below. Also, make sure that the headbase detect switch is properly aligned. REF FORMER NEW DESCRIPTION PART NUMBER DESCRIPTION PART NUMBER 154 BELT 3-360-526-01 BELT 3-360-526-03 Reference: Technical News GA-94039 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx Filename: Directory: Template: Title: Subject: Author: Keywords: Comments: Creation Date: Revision Number: Last Saved On: Last Saved By: Total Editing Time: Last Printed On: AUD0346.SB J:\SBDOC\NOV94 C:\WINWORD\S_BULL.DOT Hoyt Wing Lee 11/16/94 2:11 PM 2 11/16/94 2:11 PM Hoyt Wing Lee 0 Minutes 04/01/96 9:59 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 145 (approx.) Number of Characters: 832 (approx.) ************************************************************************ 5 Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: D-335, TCD-D7 No. 348 Subject: No Digital Recording Date: November 21, 1995 Symptom: (55) Digital recording is impossible when connecting D-335 to TCD-D7 using an optical connection cable. Solution: Apply the following changes on the Main Board of D-335. 1. Replace the Ceramic Oscillator X301 with a Crystal oscillator. 2. Add 2 capacitors. REF FORMER NEW DESCRIPTION PART NUMBER DESCRIPTION PART NUMBER X301 CERAMIC 1-760-404-11 CRYSTAL 1-567-908-11 OSCILLATOR OSCILLATOR C391/ C392 - - 15PF/50V CERAMIC CHIP CAPACITORS 1-162-917-11 Reference: Tokyo fax No. GA00994 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-R2 No. 349 Subject: Distortion When Using Line Input. Date: December 27, 1994 Symptom: (53) Distortion in the audio may occur when using the Line Input. The distortion can be heard while recording is being monitored, as well as on the recording itself. Solution: This problem may be caused by R327 or R328 being defective. If this is the case, replace R327 or R328 (or both) as needed, as shown below. Reference: Technical News GA-94045 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-1/2P No. 350 Subject: Display Shows "Disc Error". Date: December 27, 1994 Symptom: (13) The display shows "Loading", then shows"Disc Error" immediately after inserting a disc. (In normal operation, the display should show "Loading", then "TOC Reading", then the disc name and number of tracks). Solution: This problem may be caused by poor contact of limit switch S703 on the CLV board. If this is the case, replace S703 as shown below. Reference: Technical News GA-94038 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-R2 No. 351 Subject: Unusual Displays Date: December 27, 1994 Symptom: (13) Unusual characters may appear on the LCD display. This may be the result of he unit having been left in the factory test mode. Solution: There are two different methods to be applied, depending on how the display responds to the VOL + or VOL - buttons. If after pressing VOL + or VOL - the display changes from one unusual character set to another (see illustration), follow procedure 1. If the normal VOL + or VOL - display appears, follow procedure 2. Procedure 1 Press VOL + or VOL - until display A appears. While pressing the PLAY button, slide the REC switch. Press the STOP button, remove the AC adapter (if connected), and the rechargeable battery. (Cont.) Reference: SEC Ref. GA00894; Technical News GA-94036 (Revised) PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No.351 Connect the AC adapter or install the rechargeable battery and confirm that the displays are normal. Procedure 2 Press the PLAY button, and while keeping the PLAY button depressed, press the following buttons exactly in the sequence shown: AMS + (press 2 times) AMS - (press 2 times) VOL + VOL -VOL + VOL -PAUSE REC (slide REC switch and release) HOLD (move the HOLD switch to the HOLD position and leave it there). Release the PLAY button (from this point forward the VOL + and VOL - buttons can be used to select the various displays (see the illustration). Select display B. Pressing the PLAY button will alternately cause "ON" or "OFF" to appear in the display. Make sure that "OFF" appears. Repeat the previous step for displays C, D, G, H, and I. They all have to be set in the OFF mode. Press the VOL+ button until display A appears (the actual numbers and letters on the display may be somewhat different than those shown in the drawing, but it will be the display that appears after display J (DiscErase). Press the PLAY button while holding the REC switch in the REC position. Press the STOP button, then remove the AC adapter and/or rechargeable battery. Move the HOLD switch to the normal position. Connect the AC adapter or install the rechargeable battery and confirm that the displays are normal. Audio Products Service Bulletin No.351 ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-R2 No. 352 Subject: Distorted Audio. Date: December 27, 1994 Symptom: (53) The unit may have distorted audio. Solution: This problem may be caused by R329 or R330 being defective, which results in mis­operation of the reference amplifier IC316. If this is the case, replace R329 or R330 (or both) as needed. Reference: Technical News GA-94044 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-R2 No. 353 Subject: Unit Does Not Record. Date: December 27, 1994 Symptom: (55) The unit does not record (playback is O.K.) Solution: This problem may be caused by R5107 or R5108 being defective. If this is the case, replace R5107 or R5108 (or both) as needed. Reference: Technical News GA-94041 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-R2 No. 354 Subject: No Record From LINE Input (MIC Input Remains Date: December 27, 1994 Selected). Symptom: (55) The unit may not record from the LINE input. When recording is started, the display will indicate "MIC" even though an audio cable is connected to the LINE input. Solution: This problem may be caused by R307 being defective. If this is the case, replace R307 as shown below. Reference: Technical News GA-94042 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-R2 No. 355 Subject: No Output From Headphone Jack. Date: December 27, 1994 Symptom: (51) There is no output from the headphone jack. Solution: This problem may be caused by mis-operation of the mute circuit, which is in turn due to mis-operation of IC320 caused by either R357 or R358 being defective. If this is the case, replace R357 or R358 (or both) as needed. REF DESCRIPTION PART NUMBER R357 RESISTOR, METAL FILM, 39 K, 1-208-721-11 0.5% R358 RESISTOR, METAL FILM, 33K. 1-208-719-11 0.5% Reference: Technical News GA-94043 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx Audio Products Service Bulletin No. xxx ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-R2 No. 356 Subject: "Cracking" Noise Heard From Headphones. Date: December 27, 1994 Symptom: (54) A "cracking' noise may be heard when listening through headphones while the bass boost feature is active. Solution: Change C345 on the Main board as shown below. REF FORMER NEW DESCRIPTION PART NUMBER DESCRIPTION PART NUMBER C345 CAPACITOR, TANTALUM, 3.3 uF 1-135-180-21 CAPACITOR, TANTALUM, 0.47 uF/35V 1-135-145-11 Reference: GA-94030 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: MZ-R2 No. 357 Subject: Audio Dropouts Occur During Digital Recording, And Date: December 27, 1994 Track Numbers Increment Erratically. Symptom: (57) When recording from the digital input, dropouts may occur in the recording, and individual tracks may be erratically broken up into multiple track numbers. Solution: This problem may be caused by L603's actual value (allowed by its 20% tolerance) causing the digital-in PLL to unlock. If this is the case, replace L603 with a different part having 5% tolerance. Reference: GA-94033 PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: GEN-MZ No. 358 Subject: Laser Power Measurement Correction Factors. Date: December 27, 1994 Symptom: (**) Laser power measurements made with the LPM-8001 laser power meter (part number J-2501-046-A) will actually be somewhat lower than the actual laser power, and therefore must be corrected to reflect the true power level. The amount of correction is dependant upon which which laser mode is being measured at the time. Solution: CD Read Power and MO Read Power: Multiply the power specification shown in the service manual by 0.94, and then adjust the laser power so that the re-calculated power level is read on the power meter. MO Write Power: Multiply the power specification shown in the service manual by 0.92, and then adjust the laser power so that the re-calculated power level is read on the power meter. EXAMPLE: MO write power spec. shown in manual = 6.8 mW 6.8 mW x 0.92 = 6.26 mW Adjust MO write power so that 6.26 mW is read in the laser power meter. Reference: Technical News GA-94037 PRINTED IN USA Autoflagged - YES PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: CFD-8 No. 359 Subject: Unit does not work with Energizer batteries- Bend Date: February 3, 1995 positive battery terminals Symptom: (11) When the unit is running on batteries, It will not operate when using Energizer batteries but works fine with other types. Solution: Bend the positive terminal out toward the battery compartment to allow the battery to make better contact. Do not allow the terminal to stick out past the plastic supports. Reference: FPR-P PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx ************************************************************************ Audio Products Service Bulletin Sony Service Company -Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 CSA-11 Model: D-335 No. 360 Subject: Sound Skipping in ESP Mode Date: February 1, 1995 Symptom: (257) Audio skipping in ESP mode, but unit sounds fine otherwise Solution: Add an RF Equalizing circuit and make the component changes listed below: REF FORMER NEW DESCRIPTION PART NUMBER DESCRIPTION PART NUMBER C508 15PF CERAMIC CHIP CAPACITOR 1-162-917-11 1PF CERAMIC CHIP CAPACITOR 1-162-905-11 R511 10K .5% CHIP RESISTOR 1-218-716-11 15K .5% CHIP RESISTOR 1-218-720-11 R513 10K .5% CHIP RESISTOR 1-218-716-11 6.8K .5% CHIP RESISTOR 1-218-867-11 ESP ASSEMBLY A-3303-517-A CUSHION (B) 3-831-441-11 Attach the ESP assembly to the top of IC501 using double-sided tape. Solder the five leads of the assembly as shown in the diagram Reference: FPR-P PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Audio Products Service Bulletin No. xxx Attach the orange lead using the Cushion (B) Audio Products Service Bulletin No. xxx ************************************************************************