Sony (Hi-Fi) Service Bulletin free download

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5 Model: Symptom: (54) Solution: ® Hi-Fi Products CSA-13 Service Bulletin Sony Service Company - Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 DSC-88 (SERVICE JIG FOR DTC) No. 400 Subject: Countermeasure for noise from A/D converter Date: November 21, 1995 During the operation of Digital Signal Checker (DSC-88) noise is heard in the audio. Connect a 0.1 mf (1-136-165-51) between pin 19 on IC CS5326VP and ground of C65. Also connect 0.1mf capacitor between pin 25 on IC CS5326VP and ground of C56 as shown below. Reference: Technical news AU-94011 Autoflagged - NO PRINTED ON RECYCLED PAPER PRINTED IN USA Audio Products Service Bulletin No. xxx

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Hi-Fi Products CSA-13 Service Bulletin Sony Service Company - Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 Model: HCD-C50U No. 407 Subject: Extension Jig Available for CD Mechanism Symptom: (**) Solution: Date: September 8, 1994 It is difficult to take measurements on the BD board, or to test work performed on the Optical Pickup block assembly due to short cable length. Two extension jig wires are available to operate the pickup block Assembly while it is out of the Deck Mechanism. (See connecting diagram on back of Service Bulletin). Procedure: 1.) Disassemble the HCD-C50 to access the Deck Mechanism. 2.) Remove the 7 pin wire from the CD main board (CN403) and the main board (CN704). Replace this wire with the seven pin extension jig P/N J-2501-058-A. 3.) Disconnect the 15 pin wire from CD main board (CN404) and add the 15 pin extension jig P/N J-2501-009-A to the disconnected wire and CD main board. 4.) Remove the Plate, that the CD main board is mounted to, from the rear of the Mechanism Deck. Disconnect the 22 pin wire from CN402 of the CD main board and lift the retaining clip holding the 22 pin flat wire to the Deck mechanism. 5.) Remove the Optical pickup block assembly by removing the screw securing the Fulcrum(BU) which is holding the optical block assy in place. Remove the Optical Block assy, be careful not to damage the 22 pin wire. 6.) Re-insert the 22 pin wire into CN402. Place the Optical block assy on a flat nonconductive surface for testing. A chucking magnet is needed to secure a disc during testing. If one is available place it on the test disc, if not, remove the chucking assy from the HCD-C50U and use the magnet to secure the disc. 7.) When testing is completed remove the extension jig wires and reassemble the unit. (Continued) Reference: FPR-P Autoflagged - NO PRINTED ON RECYCLED PAPER PRINTED IN USA Audio Products Service Bulletin No.407 Filename: HFP0407.SB Directory: J:\SBDOC\SEP94 Template: C:\WINWORD\S_BULL.DOT Title: Extension jig available Subject: Connecting the jigs Author: Hoyt Wing Lee Keywords: Comments: Creation Date: 09/08/94 3:08 PM Revision Number: 2 Last Saved On: 09/08/94 3:08 PM Last Saved By: Hoyt Wing Lee Total Editing Time: 1 Minute Last Printed On: 04/01/96 10:52 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 305 (approx.) Number of Characters: 1,739 (approx.)

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Hi-Fi Products CSA-13 Service Bulletin Sony Service Company - Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 Model: HCD-C33 No. 408 Subject: An Extension Jig Available Symptom: (**) Date: September 7, 1994 An extension Jig is needed to connect the main board to the FL board when servicing this unit Solution: Description Cable, Extension Use the extension jig listed below when servicing this unit Part number J-2501-075-A Pins & Pitch 21P, 1mm Points Connected CN102-CN901 Reference: Technical News AU-94020 Autoflagged - NO PRINTED ON RECYCLED PAPER PRINTED IN USA Audio Products Service Bulletin No. xxx Filename: HFP0408.SB Directory: J:\SBDOC\SEP94 Template: C:\WINWORD\S_BULL.DOT Title: Extension cable Subject: Author: Hoyt Wing Lee Keywords: Comments: Creation Date: 09/07/94 2:14 PM Revision Number: 2 Last Saved On: 09/07/94 2:14 PM Last Saved By: Hoyt Wing Lee Total Editing Time: 1 Minute Last Printed On: 04/01/96 10:53 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 119 (approx.) Number of Characters: 680 (approx.)

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Hi-Fi Products CSA-13 Service Bulletin Sony Service Company - Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 Model: HCD-H550M No. 409 Subject: Extension Jigs Available Symptom: (**) Date: September 7, 1994 Extension jigs are needed to connect the main board to the switch board and display board while servicing this unit. Solution: Use the parts listed to connect the main board to the switch board and display board. Part Number J-2501-073-A J-2501-070-A No. of Pins 20P 22p Points Connected CN101-CN501 CN201-CN751 Desciption Display bd to main bd cable Switch bd to main bd cable Reference: Technical News AU-94015/6 Autoflagged - NO PRINTED ON RECYCLED PAPER PRINTED IN USA Audio Products Service Bulletin No. xxx Filename: HFP0409.SB Directory: J:\SBDOC\SEP94 Template: C:\WINWORD\S_BULL.DOT Title: Extension cables Subject: Author: Hoyt Wing Lee Keywords: Comments: Creation Date: 09/07/94 2:10 PM Revision Number: 2 Last Saved On: 09/07/94 2:10 PM Last Saved By: Hoyt Wing Lee Total Editing Time: 0 Minutes Last Printed On: 04/01/96 10:54 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 135 (approx.) Number of Characters: 775 (approx.)

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Hi-Fi Products CSA-13 Service Bulletin Sony Service Company - Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 Model: TC-WR80ES/WR820A/WR87ES/WR775/ WR590/WR535/WR545/WR635S/ WR670/WR690/WR701ES/WR720A/ WR720/WR801ES/WR790 No. 410 Subject: New Spring for Replacement Head Base Assembly Symptom: (**) Date: September 7, 1994 There are two types of head base assemblies and head base springs. Use the new type of head base spring (listed below) when the new type head base assembly is used Solution: FORMER DESCRIPTION HEAD BASE SPRING PART NUMBER 3-359-455-01 NEW DESCRIPTION HEAD BASE SPRING PART NUMBER 3-907-362-01 Reference: Technical News AU-94017 Autoflagged - NO PRINTED ON RECYCLED PAPER PRINTED IN USA Audio Products Service Bulletin No. xxx Filename: HFP0410.SB Directory: J:\SBDOC\SEP94 Template: C:\WINWORD\S_BULL.DOT Title: New Head spring Subject: Author: Hoyt Wing Lee Keywords: Comments: Creation Date: 09/07/94 2:06 PM Revision Number: 2 Last Saved On: 09/07/94 2:06 PM Last Saved By: Hoyt Wing Lee Total Editing Time: 1 Minute Last Printed On: 04/01/96 10:54 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 140 (approx.) Number of Characters: 800 (approx.)

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Hi-Fi Products CSA-13 Service Bulletin Sony Service Company - Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 Model: DTC-57ES/59ES/60ES/670/690/750 No. 411 Subject: Test Modes Symptom: (**) Date: September 28, 1994 How to enter test modes using a remote commander. Solution: Use the following procedure: 1. MECHANICAL OPERATION SERVICE MODE (DTC-57ES and DTC-670 only!) Mechanism operation without a cassette inserted. · · Set the TIMER switch to PLAY. While you press and hold the SKIP ID WRITE and START ID WRITE buttons, press POWER ON. 2. TEST MODE 1 Use a Modified RM-D55 (DTC-75ES/700 remote commander) P/N 1-465-312-11. Press the test button once (refer to : HOW TO MODIFY THE REMOTE FOR TESTING section). (Continued) Reference: Canada HiFi-94-032 Autoflagged - NO PRINTED ON RECYCLED PAPER PRINTED IN USA Hi-Fi Products Service Bulletin No. 411 (Continued) Hi-Fi Products Service Bulletin No. 411 3. TEST MODE 2 With a cassette inserted, Press'8' + '0...9' + TEST button on the modified remote commander. *NOTE DTC-690 does not have the 10 H segment, therefore it is not possible to see the position of encoder switches SW1 and SW2. Also, the drum rotation time indication is limited to 999 H 59M Instead of 9999 H 59 M. HOW TO MODIFY THE REMOTE FOR TESTING · · · · · Remove the battery cover and batteries. On the back cover, pry the claws at the arrows outward and up. Remove the board and keypad. Drill a hole in the front panel between the RESET and A-B buttons to access the TEST button Reassemble the remote. DISPLAY OF MECHANICAL OPERATION MODE Filename: HFP0411.SB Directory: J:\SBDOC\SEP94 Template: C:\WINWORD\S_BULL.DOT Title: DTC Modification Subject: Author: Hoyt Wing Lee Keywords: Comments: Creation Date: 09/28/94 11:50 AM Revision Number: 2 Last Saved On: 09/28/94 11:50 AM Last Saved By: Hoyt Wing Lee Total Editing Time: 1 Minute Last Printed On: 04/01/96 10:55 AM As of Last Complete Printing Number of Pages: 3 Number of Words: 287 (approx.) Number of Characters: 1,641 (approx.)

File name HFP0412.PDF

Hi-Fi Products CSA-13 Service Bulletin Sony Service Company - Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 Model: HCD-C55 No. 412 Subject: Extension Jig Cable Available Symptom: (**) Date: September 28, 1994 Extension jig cables are needed for operation/testing while servicing this unit. Solution: POINTS CONNECTED FL BD, (CN 901) TO MAIN BD, (CN108) FL BD, (CN902) TO MAIN BD, (CN103) MAIN BD, (CN101) TO CD BD, (CN106) DESCRIPTION CABLE, EXTENSION CABLE, EXTENSION CABLE, EXTENSION PART NUMBER J-2501-075-A J-2501-058-A J-2501-011-B Reference: Tokyo Fax Ref # AF402081 Autoflagged - NO PRINTED ON RECYCLED PAPER PRINTED IN USA Audio Products Service Bulletin No. xxx Filename: HFP0412.SB Directory: J:\SBDOC\SEP94 Template: C:\WINWORD\S_BULL.DOT Title: hcdc55 Subject: extension cables Author: Hoyt Wing Lee Keywords: Comments: Creation Date: 09/28/94 11:19 AM Revision Number: 2 Last Saved On: 09/28/94 11:19 AM Last Saved By: Hoyt Wing Lee Total Editing Time: 0 Minutes Last Printed On: 04/01/96 10:56 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 129 (approx.) Number of Characters: 737 (approx.)

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Hi-Fi Products CSA-13 Service Bulletin Sony Service Company - Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 Model: SEQ-711 No. 413 Subject: Correction of IC421 Block Diagram Symptom: (**) Date: September 28, 1994 The block diagram of IC421 (MC14001BCP) is shown incorrectly on page 13 of the Service Manual. Solution: The correct block diagram is shown below. Reference: Canada S/B HiFi-94-049 Autoflagged - NO PRINTED ON RECYCLED PAPER PRINTED IN USA Audio Products Service Bulletin No. xxx Filename: HFP0413.SB Directory: J:\SBDOC\SEP94 Template: C:\WINWORD\S_BULL.DOT Title: Correction of IC421 Subject: Author: Hoyt Wing Lee Keywords: Comments: Creation Date: 09/28/94 1:11 PM Revision Number: 2 Last Saved On: 09/28/94 1:11 PM Last Saved By: Hoyt Wing Lee Total Editing Time: 0 Minutes Last Printed On: 04/01/96 10:56 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 102 (approx.) Number of Characters: 585 (approx.)

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Hi-Fi Products CSA-13 Service Bulletin Sony Service Company - Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 Model: DTC-57ES/59ES/60ES/670/690/750 No. 414 Subject: Correction of Exploded View Symptom: (**) Date: September 28, 1994 The references for the T/S load levers and T/S load gears are shown incorrectly in the exploded view. Solution: Correct as follows. REF INCORRECT 314 319 319 315 316 CORRECT 319 315 316 317 318 SHAFT (LOAD LEVER JOINT) T LOAD LEVER S LOAD LEVER T LOAD GEAR S LOAD GEAR 3-368-415-01 3-368-427-01 3-368-427-01 3-368-444-01 3-368-443-01 DESCRIPTION PART NUMBER Reference: Canada S/B HiFi-94-033 Autoflagged - NO PRINTED ON RECYCLED PAPER PRINTED IN USA Audio Products Service Bulletin No. xxx Filename: HFP0414.SB Directory: J:\SBDOC\SEP94 Template: C:\WINWORD\S_BULL.DOT Title: Correction of exploded view Subject: Author: Hoyt Wing Lee Keywords: Comments: Creation Date: 09/28/94 11:41 AM Revision Number: 2 Last Saved On: 09/28/94 11:41 AM Last Saved By: Hoyt Wing Lee Total Editing Time: 0 Minutes Last Printed On: 04/01/96 10:56 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 137 (approx.) Number of Characters: 781 (approx.)

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Hi-Fi Products CSA-13 Service Bulletin Sony Service Company - Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 Model: MDS501 No. 415 Subject: The unit won't play a Minidisc Symptom: (51) Date: October 13, 1994 The MDS501 won't play a disc due to a defective ATRAC decoder and/or defective Shockproof memory controller IC. Solution: Improved ATRAC decoders and Shock proof Memory Contoller IC's are available. The improved ICs can be identified by the date/lot number information printed on the IC. The information takes the form of a code which uses the year/week/"A"/lot#/"E". A code that is read 407A51E would mean the IC was manufactured in 1994, in the 07th week. The "A" has no special meaning. The 51 after the "A" is the lot number. Like the "A", the "E" has no special meaning in this code structure, these letters can be found in all different versions of these IC's. For IC101, the ATRAC Decoder IC type CXD2531/AR/BR, the improved ICs have date/lot codes of "412A83E" and later. For IC110, the Shock proof Memory Controller IC, type CXD2526AR, the improved ICs have date/lot codes of "412A26E" and later. Reference: Info from AU-QE group Autoflagged - NO PRINTED ON RECYCLED PAPER PRINTED IN USA Audio Products Service Bulletin No. xxx Filename: HFP0415.SB Directory: J:\SBDOC\OCT94 Template: C:\WINWORD\S_BULL.DOT Title: MDS501 Subject: The unit won't play a Minidisc Author: Hoyt Wing Lee Keywords: Comments: Creation Date: 10/13/94 9:26 AM Revision Number: 2 Last Saved On: 10/13/94 9:26 AM Last Saved By: Hoyt Wing Lee Total Editing Time: 0 Minutes Last Printed On: 04/01/96 10:28 AM As of Last Complete Printing Number of Pages: 2 Number of Words: 211 (approx.) Number of Characters: 1,206 (approx.)