SonyメーカーMDS-NT1の使用説明書/サービス説明書
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SERVICE MANUAL MINIDISC DECK AEP Model UK Model E Model SPECIFICA TIONS MDS-NT1 US and foreign patents licensed from Dolby Laboratories Licensing Corporation. • Do not connect the supplied AC power adaptor to a switched AC outlet (e.g., on an amplifier).
2 MDS-NT1 SELF-DIA GNOSIS FUNCTION The self-diagnosis function consists of error codes for customers which are displayed automaticall y when errors occur, and error codes which show the err or history in the test mode during servicing. For details on ho w to view error codes for the customer , refer to the follo wing box in the instruction manual.
3 MDS-NT1 ITEMS OF ERROR HIST OR Y MODE ITEMS AND CONTENTS Selecting the T est Mode Displa y Details of Histor y op rec tm Cumulativ e recording time is displayed. When cumulati ve recording time is ov er 1 minute, the hour and minute are displayed as they are.
4 MDS-NT1 Error Code Details of Error 10 Loading failed 12 Loading switch combination is illegal 20 Head of PT OC could not be read within the specified time 21 Head of PTOC could be read b ut its con.
5 MDS-NT1 SELF-DIA GNOSIS FUNCTION ........................... 2 1. SER VICING NOTES ............................................... 7 2. GENERAL ................................................................... 12 3. DISASSEMBL Y 3-1. Disassembly Flow .
6 MDS-NT1 CA UTION Use of controls or adjustments or performance of procedures other than those specif ied herein may result in hazardous ra- diation exposure. Notes on chip component replacement • Nev er reuse a disconnected chip component. • Notice that the minus side of a tantalum capacitor may be dam- aged by heat.
7 MDS-NT1 SECTION 1 SER VICING NO TES The laser diode in the optical pick-up block may suf fer electro- static break-do wn because of the potential difference generated by the charged electrostatic load, etc.
8 MDS-NT1 I+3V Iop GND TE FE VC RF I+3V Iop GND TE FE VC RF 1 7 for MDM-7S2 B I+3V CN105 Iop TE VC GND FE RF JIG FOR CHECKING BD BO ARD W A VEFORM The special jig (J-2501-149-A) is useful for checking the wa vefor m of the BD board. The names of terminals and the checking items to be performed are shown as follo ws.
9 MDS-NT1 Iop DA T A RECORDING AND DISPLA Y WHEN OPTICAL PICK-UP AND NON-V OLA TILE MEMOR Y (IC195 OF BD BO ARD) ARE REPLACED The Iop v alue labeled on the optical pick-up can be recorded in the non-volatile memory . By recording the v alue, it will eliminate the need to look at the value on the optical pick-up label.
10 MDS-NT1 CHECKS PRIOR T O PARTS REPLA CEMENT AND ADJUSTMENTS IN MD Before performing repairs, perform the follo wing checks to determine the faulty locations up to a certain e xtent. Details of the procedures are described in “ 5. Electrical Adjustments ” .
11 MDS-NT1 SER VICE MODE Microcomputer V ersion Display Procedur e: 1. Press the [ ] b utton and [ ] button until the NetMD indicator turns of f (for more than 3 seconds). (During this step, the USB cable must be disconnected) 2. Connect the set to the PC with the attached USB cable.
12 MDS-NT1 SECTION 2 GENERAL This section is e xtracted from instruction manual. This chapter tells you about the location and function of the various buttons, controls on the MD deck. 13 2 5 4 6 1 N / > button Press while the unit is stopped to start playback.
13 MDS-NT1 SECTION 3 DISASSEMBL Y • This set can be disassembled in the order shown belo w . 3-1. DISASSEMBL Y FLO W Note: The process described in can be performed in any order. Note: Without completing the process described in , the next process can not be performed.
14 MDS-NT1 1 three screws (BVTP3 × 10) 1 three screws (BVTP3 × 10) 2 case (upper) wire (flat type) (7core) lead wire OK NG lead wire chassis lead wire chassis wire (flat type) (7 core) Note 1: Fold down the flat type wire (7 core) in the direction of the arrow at the first setout, then install the upper case.
15 MDS-NT1 3-3. MAIN BOARD 4 MAIN board 3 screw (BVTP3 × 8) 3 screw (BVTP3 × 8) 1 wire (flat type) (7 core) (CN104) 1 wire (flat type) (23 core) (CN102) 1 wire (flat type) (27 core) (CN101) 2 screw (BVTT3 × 8) 3 MD mechanism deck (MDM-7S2B) 2 four screws (BVTTWH M3) 1 wire (flat type) (23 core) (CN102) 1 wire (flat type) (27 core ) (CN101) 3-4.
16 MDS-NT1 3-5. FRONT P ANEL SECTION 3-6. BD BO ARD, O VER WRITE HEAD (HR901) 6 2 screw (P1.7 × 6) 3 ov er write head (HR901) Note: By means of removing 1 connector (CN104), BD board can be remov ed without removing the ov er write head (HR901). Note: The ov er write head (HR901) should be handled with care as it is damaged easily .
17 MDS-NT1 3-7. HOLDER ASSY 3-8. LOADING MO T OR ASSY (M103) 3 5 6 holder assy 4 boss 1 tension spring (holder) 4 boss 2 claw 2 two screws (PWH1.7 × 2.
18 MDS-NT1 3-9. SLED MOT OR ASSY (M102) 3-10. OPTICAL PICK-UP (KMS-262E) 3 A 4 slider (EJ) 6 slider 2 guide (L) 1 two screws (B2 × 6) 7 lev er (CHG) 5 With holding the claw , slide the slider fully in the direction of arrow A . 8 lev er (head) 9 two screws (PWH1.
19 MDS-NT1 3-11. SPINDLE MO T OR ASSY (M101) 2 spindle motor assy (M101) 1 three screws (M1.7).
20 MDS-NT1 Note 1: T he test mode and recording of this set are controlled by a personal computer, thus requiring the set to be connected to the PC . Prepare the personal computer in which necessary software is already installed. • Attached software “ OpenMG Jukebox ” (necessary for recording (check in, check out)) (Part No.
21 MDS-NT1 4-5. SELECTING THE TEST MODE There are 26 types of test modes as shown belo w . The groups can be switched by clicking the [JOG UP] or [JOG DOWN] . After selecting the group to be used, click the [ENTER/YES] . After setting a certain group, click the [JOG UP] or [JOG DOWN] switches between these modes.
22 MDS-NT1 4-5-1. Operating the Continuous Playbac k Mode 1. Entering the continuous playback mode (1) Set the disc in the unit. (Whiche ver recordable discs or discs for playback only are av ailable) (2) Click the [JOG UP] or [JOG DOWN] and display “ CPLA Y2MODE ” (C36).
23 MDS-NT1 4-6. AUT OMA TIC SELF-DIA GNOSIS FUNCTION This test mode performs CREC and CPLA Y automatically for mainly checking the characteristics of the optical pick-up. T o perf orm this test mode, the laser power must first be c hec ked. Perform A UTO CHECK after the laser po wer check and Iop check.
24 MDS-NT1 SECTION 5 ELECTRICAL ADJUSTMENTS Other faults are suspected. Check the mechanism (sled motor , etc). Star t NG NG NG OK OK OK Laser P ower Check 5-7-2.
25 MDS-NT1 5-7-4. Auto Check (See page 29) Star t NO NO NO NO NO NO NO YES YES YES YES YES YES YES Replace OP or IC195 * Replace IC101, IC195 * , or D101 5-12.
26 MDS-NT1 5-2. PRECA UTIONS FOR CHECKING LASER DIODE EMISSION T o c heck the emission of the laser diode during adjustments, ne ver vie w directly from the top as this may lose your eye-sight.
27 MDS-NT1 7. Initial setting of adjustment value 8. Recording of Iop information 9 . T emperature compensation offset adjustment 10. Laser po wer adjustment 11. Iop NV Sa ve 12. T raverse adjustment 13. Focus bias adjustment 16. Auto gain adjustment 6-4.
28 MDS-NT1 5-7. CHECKS PRIOR TO REP AIRS These checks are performed before replacing parts according to “ approximate specif ications ” to determine the faulty locations. For details, refer to “ Checks Prior to Parts Replacement and Adjust- ments ” (see page 10).
29 MDS-NT1 5-7-4. Auto Chec k This test mode performs CREC and CPLA Y automatically for mainly checking the characteristics of the optical pick-up. T o perform this test mode, the laser po wer must first be checked. Perform Auto Check after the laser po wer check and Iop compare.
30 MDS-NT1 9. Click the [ENTER/YES] to display “ EFB = MO-P ” . Then, the optical pick-up mov es to the pit area automatically and servo is imposed. 10. Observe the wa veform of the oscilloscope, and check that the specified v alue is satisfied. Do not click the [JOG UP] o r [JOG DOWN] .
31 MDS-NT1 5-8. INITIAL SETTING OF ADJUSTMENT V ALUE Note: Mode which sets the adjustment results recorded in the non-volatile memory to the initial setting value. Ho we ver the results of the tempera- ture compensation offset adjustment will not change to the initial setting value.
32 MDS-NT1 6. Click the [JOG UP] or [JOG DOWN] so that the reading of the laser power meter becomes specif ied value , click the [ENTER/YES] to save it. Specif ied V alue: Laser po wer meter reading: 8.2 to 8.6 mW (KMS-262A) 8.5 to 8.8 mW (KMS-262E) Note: Do not perform the emission with 8.
33 MDS-NT1 8. Click the [JOG UP] or [JOG DOWN] so that the wav eform of the oscilloscope becomes the specified v alue. (When the [JOG UP] or [JOG DOWN] is clicked, the of “ EFB= ” changes and the wav ef orm changes.) In this ad- justment, wav eform v aries at intervals of approx.
34 MDS-NT1 5-15. ERR OR RA TE CHECK 5-15-1. CD Error Rate Check Checking Procedur e: 1. Load the check disc (MD) TD YS-1. 2. Click the [JOG UP] or [JOG DOWN] to display “ CPLA Y2 MODE ” (C36). 3. Click the [ENTER/YES] twice and display “ CPLA Y2MID ” .
35 35 MDS-NT1 Adjustment and Checking Loacation: – BD BO ARD (Component Side) – – BD BO ARD (Conductor Side) – D101 CN101 IC101 IC201 IC933 CN105 1 1. I+3V 2. Iop 3. GND 4. TE 5. FE 6. VC 7. RF 7 Note: It is useful to use the jig for checking the wav eform.
36 36 MDS-NT1 SECTION 6 DIA GRAMS 6-1. BLOCK DIA GRAM – SER V O Section – F C B D A E I J J I B A C D E F DETECTOR J I A B C D E F LD PD LASER DIODE ILCC PD OPTICAL PICK-UP BLOCK (KMS-262E) AUTOMATIC POWER CONTROL Q202, 203 APC PD APCREF AT AMP B.
37 37 MDS-NT1 6-2. BLOCK DIA GRAM – MAIN Section – 11 10 7 3 2 4 8 7 6 5 39 40 42 35 1 NET MD SECURITY, DIGITAL SIGNAL PROCESSOR, USB INTERFACE IC901 USB CN4 A B C 5 12 11 10 9 CN200 57 56 51 53 5.
38 38 MDS-NT1 6-3. NOTE FOR PRINTED WIRING BO ARDS AND SCHEMA TIC DIA GRAMS Note on Schematic Diagram: • All capacitors are in µ F unless otherwise noted. pF: µµ F 50 WV or less are not indicated except f or electrolytics and tantalums. • All resistors are in Ω and 1 / 4 W or less unless otherwise specified.
39 39 MDS-NT1 6-4. PRINTED WIRING BO ARD – BD Board – (SLED) M – + IC101 IC701 IC201 IC401 IC152 IC181 BD BOARD (COMPONENT SIDE) BD BOARD (CONDUCTOR SIDE) (REC) (PLAY) (OUT) (LIMIT IN) E E 2B 1B.
40 40 MDS-NT1 6-5. SCHEMA TIC DIA GRAM – BD Board (1/2) –• See page 38 for W aveforms. • See page 48 for IC Block Diagrams. C410 TP616 TP615 TP614 TP613 TP612 TP611 TP609 TP608 TP607 TP606 TP6.
41 41 MDS-NT1 6-6. SCHEMA TIC DIA GRAM – BD Board (2/2) –• See page 38 for Wa veforms. TP160 TP161 TP162 TP165 TP144 C233 TP942 TP941 TP940 TP939 TP938 TP937 TP936 TP934 TP933 TP932 TP930 TP929 .
42 42 MDS-NT1 6-7. PRINTED WIRING BO ARD – MAIN Board (Component Side) – MAIN BOARD (COMPONENT SIDE) 1-682-708- 12 (12) IC400 IC402 IC401 IC901 IC301 IC420 IC503 IC501 IC505 1 4 8 5 IC550 IC451 B .
43 43 MDS-NT1 6-8. PRINTED WIRING BO ARD – MAIN Board (Conductor Side) – MAIN BOARD (CONDUCTOR SIDE) 1-682-708- 12 (12) IC450 IC440 USB CN4 2 3 4 1 1 2 CN4 (FRONT VIEW) J400 – + DC IN 9V SHORT SOCKET 8 1 1 2 3 (CHASSIS) PHONE LEVEL RV301 ANALOG OUT CN200 PHONES J180 1 2 3 4 5 6 7 8 9 10 11 A B C D E F G H I – 1 – 2 Ref.
44 44 MDS-NT1 6-9. SCHEMA TIC DIA GRAM – MAIN Board (1/2) –• See page 38 for Wa veforms. • See page 48 for IC Block Diagrams. FB1 R10 LF1 FB2 FB3 R320 R321 R329 R323 R324 R325 C320 C319 C313 C.
45 45 MDS-NT1 6-10. SCHEMA TIC DIA GRAM – MAIN Board (2/2) – • See page 38 for W aveforms. • See page 48 for IC Block Diagrams. EP550 C177 R178 C277 R281 R181 C282 C182 R280 R180 C456 C451 C45.
46 46 MDS-NT1 1-682-709- 12 (12) PANEL BOARD (CONDUCTOR SIDE) PANEL BOARD (COMPONENT SIDE) 1-682-709- 12 (12) KA KA C MAIN BOARD CN104 A B C D 1 2 3 4 5 6 K A D731, 751 (REC) (PLAY) N / > x / Z (CHASSIS) Net MD Ref. No . Location D731 A-6 D732 C-4 D751 A-1 Q731 B-5 Q732 B-3 Q751 B-1 • Semiconductor Location 6-11.
47 MDS-NT1 6-12. SCHEMA TIC DIA GRAM – P ANEL Boar d – CN704 R726 R702 R731 C748 R751 R732 D751 D732 TP701 S726 S702 7P 4.7k 2.2k 150 0.1 150 150 SML-010MT-T87 SEL5820A-TP15 KEY0 LED1 LED2 PANEL.
48 MDS-NT1 • IC Block Diagrams – BD Board – IC101 CXA2523AR – 1 – 2 + – IVR BB + – IVR AA + – IVR CC + – IVR DD + – IVR + – EE EE' EFB TESW PTGR 48 MORFO 47 MORFI 46 RFO 45 .
49 MDS-NT1 IC401 BH6519FS-E2 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 123456789 10 11 12 13 14 15 16 GND VG IN4R IN4F VM4 OUT4F PGND4 OUT4R VM34 OUT3R PGND3 OUT3F VM3 IN3F IN3R PSB CAPA – CAPA+ IN2R IN2F VM2 OUT2F PGND2 OUT2R VM12 OUT1R PGND1 OUT1F VM1 IN1F IN1R V DD CHARGE PUMP.
50 MDS-NT1 IC505 CXD9627A-E2 IC451 XC6351A120MR IC440 M54641L REG. CONTROL INPUT AMP INPUT AMP POWER AMP POWER AMP 1 VCC 2 OUT2 3 IN1 4 GND 5 REFERENCE 6 IN2 7 OUT1 8 VCC 1 2 OSCILLATOR CHIP ENABLE BU.
51 MDS-NT1 6-13. IC PIN FUNCTION DESCRIPTION • BD BOARD IC101 CXA2523AR (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. Pin Name I/O Description 1I I I-V converted RF signal I input from the optical pick-up block detector 2J I I-V converted RF signal J input from the optical pick-up block detector 3V C O Middle point voltage (+1.
52 MDS-NT1 • BD BOARD IC201 CXD2664R Pin No. Pin Name I/O Description 1 MNT0 (FOK) O Focus OK signal output terminal “ H ” is output when focus is on ( “ L ” : NG) Not used 2 MNT1 (SHCK) O T.
53 MDS-NT1 Pin No. Pin Name I/O Description 41 A11 O Address signal output to the external D-RAM Not used 42 to 45 D0 to D3 I/O Two-way data bus with the D-RAM 46 XCAS O Column address strobe signal o.
54 MDS-NT1 Pin No. Pin Name I/O Description 100 APC O Reference PWM signal output to the RF amplifier for the laser automatic power control 101 LDDR O PWM signal output terminal for laser digital auto.
55 MDS-NT1 • MAIN BOARD IC301 M30835FJGP-01 (SYSTEM CONTROLLER) Pin No. Pin Name I/O Description 1N C — Not used 2R M C I Remote control signal input terminal Not used 3 NETMD_SO O Serial data out.
56 MDS-NT1 Pin No. Pin Name I/O Description 50 PLAY-SW I Detection input from the playback position detect switch “ L ” : active 51 XLATCH O Serial data latch pulse signal output to the mechanism .
57 MDS-NT1 • MAIN BOARD IC301 CXD1873R (NET MD SECURITY, DIGITAL SIGNAL PROCESSOR, USB INTERFACE) Pin No. Pin Name I/O Description 1 VDEA0 — Power supply terminal (+3.
58 MDS-NT1 Pin No. Pin Name I/O Description 46 EXTAL I System clock input terminal (12 MHz) 47 XTAL O System clock output terminal (12 MHz) 48 PLLVSS — Ground terminal (for OSC) 49 VDEC0 — Power supply terminal (+3.
59 MDS-NT1 7-1. CASE SECTION SECTION 7 EXPLODED VIEWS • Items marked “ * ” are not stocked since the y are seldom required for routine service. Some delay should be anticipated when ordering these items. • The mechanical parts with no reference num- ber in the exploded vie ws are not supplied.
60 MDS-NT1 7-2. FR ONT P ANEL SECTION 52 51 53 54 not supplied 55 56 56 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 51 X-4954-600-3 PANEL ASSY , FRONT 52 4-236-730-01 BUT.
61 MDS-NT1 7-3. CASE (B) SECTION #4 #4 #5 # 4 #4 105 105 104 101 102 not supplied 103 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 101 A-4727-708-A MAIN BOARD, COMPLETE (S.
62 MDS-NT1 7-4. MD MECHANISM DECK SECTION-1 (MDM-7S2B) 304 306 302 301 307 305 320 302 311 319 not supplied 310 314 313 315 316 318 303 317 308 not supplied not supplied MD mechanism deck section-2 Ref. No. Part No. Description Remark Ref. No. Part No.
63 MDS-NT1 7-5. MD MECHANISM DECK SECTION-2 (MDM-7S2B) 359 358 357 355 354 356 360 359 362 352 353 353 351 363 352 353 362 HR901 S102 M101 M103 not supplied not supplied M102 #11 #11 353 361 364 367 365 368 366 A A Ref. No. Part No. Description Remark Ref.
64 MDS-NT1 SECTION 8 ELECTRICAL P AR TS LIST BD Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark NO TE: • Due to standardization, replacements in the parts list may be different from the parts speci- fied in the diagrams or the components used on the set.
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 65 MDS-NT1 BD < CONNECTOR > CN101 1-766-833-21 CONNECTOR, FFC/FPC (ZIF) 21P CN102 1-784-835-21 CONNECTOR, FFC (LIF (NON-.
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 66 MDS-NT1 BD MAIN R707 1-218-863-11 MET AL CHIP 4.7K 0.5% 1/10W R708 1-218-863-11 MET AL CHIP 4.7K 0.5% 1/10W R709 1-218-855-11 MET AL CHIP 2.2K 0.5% 1/10W R710 1-218-887-11 MET AL CHIP 47K 0.
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 67 MDS-NT1 MAIN C917 1-164-156-11 CERAMIC CHIP 0.1uF 25V C918 1-162-919-11 CERAMIC CHIP 22PF 5% 50V C920 1-216-864-11 MET AL CHIP 0 5% 1/10W C922 1-164-156-11 CERAMIC CHIP 0.
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 68 MDS-NT1 MAIN P ANEL R314 1-216-833-11 MET AL CHIP 10K 5% 1/10W R320 1-216-833-11 MET AL CHIP 10K 5% 1/10W R321 1-216-833-11.
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 69 MDS-NT1 M103 A-4672-975-A MOTOR ASSY , LOADING S102 1-771-957-11 SWITCH, PUSH (2 KEY) (REFLECT RA TE DETECT , PROTECT DETEC.
MDS-NT1 REVISION HIST OR Y Clicking the ver sion allows you to jump to the re vised page. Also, clicking the v ersion at the upper right on the re vised page allows you to jump to the ne xt re vised page.
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Sony MDS-NT1をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはSony MDS-NT1の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Sony MDS-NT1の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Sony MDS-NT1で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Sony MDS-NT1を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はSony MDS-NT1の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Sony MDS-NT1に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちSony MDS-NT1デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
