Instruction/ maintenance manual of the product NEW Sony
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MDS-JE440 SPECIFICA TIONS SERVICE MANUAL MINIDISC DECK Model Name Using Similar Mechanism NEW MD Mechanism T ype MDM-7A Optical Pick-up T ype KMS-260B/J1N US Model Canadian Model AEP Model UK Model E Model A ustr alian Model US and f oreign patents licensed form Dolby Laboratories Licensing Corporation.
2 SELF-DIA GNOSIS FUNCTION The self-diagnosis function consists of error codes for customers which are displayed automatically when er rors occur, and erro r codes which sho w the error history in the test mode during servicing. For details on ho w to view error codes for the customer , refer to the following box in the instruction manual.
3 1. While pressing the AMS knob and x b utton, connect the power plug to the outlet, and release the AMS knob and x button. When the test mode is set, “ [Check] ” will be displayed. 2. Rotate the AMS knob and when “ [Service] ” is displa yed, press the YES button.
4 Description T ABLE OF CONTENTS 1. SER VICING NO TES ............................................. 5 2. GENERAL ........................................................................ 11 3. DISASSEMBL Y 3-1. Upper Case (408226) .....................
5 SECTION 1 SER VICE NO TES This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PR ODUCT MARKING is located on the rear exterior . Laser component in this product is capable of emitting radiation exceeding the limit for Class 1.
6 JIG FOR CHECKING BD BO ARD W A VEFORM The special jig (J-2501-196-A) is useful for checking the wa veform of the BD board. The names of terminals and the checking ite ms to be performed are sho wn as follows.
7 Iop D A T A RECORDING AND DISPLA Y WHEN OPTICAL PICK-UP AND NON-V OLA TILE MEMOR Y (IC195 OF BD BO ARD) ARE REPLA CED The Iop value la beled on the optical pick-up can be recorded in the non-volatile memory . By recording the value, it will elimin ate the need to look at the value on the label of the optical pick-up.
8 CHECKS PRIOR TO PAR TS REPLA CEMENT AND ADJUSTMENTS Before performing repairs, perform the follo wing checks to determine the faulty locations up to a certain extent. Details of the procedures are described in “5 Electrical Adjustments”. • 5-6-2.
9 Fig. 2 Reading the T est Mode Displa y (During playbac k) @@####**$$ Fluorescent display tube display @@ : Parts No. (name of area named on TOC) ## : Cluster ** : Sector $$ : Trac k mode (Trac k inf.
10 He xadecimal Bit Binar y Higher Bits Lower Bits 84218421 b7 b6 b5 b4 b3 b2 b1 b0 00000001 00000010 00000100 00001000 00010000 00100000 01000000 10000000 He xa- decimal Details 01 02 04 08 10 20 40 80 Emphasis OFF Monaural This is 2-bit display . Normall y 01.
11 SECTION 2 GENERAL 1 ST ANDBY indicator 2 @/1 (power) b utton 3 SCR OLL button 4 MDLP indicator 5 A EJECT button 6 MENU/NO button 7 YES button 8 H b utton 9 S button q; s button qa z REC b utton qs .
12 SECTION 3 DISASSEMBL Y 3-1. UPPER CASE (408226) 3-2. FR ONT P ANEL SECTION Note : Follo w the disassembly procedure in the numerical order giv en. 1 two screws (CASE 3 TP2) 2 case (408226) 1 two sc.
13 3-3. MAIN BO ARD 3-4. PT BO ARD , V OL-SEL BO ARD 4 two screws (BVTP3 × 8) 6 screw (BVTP3 × 8) 5 screw (BVTP3 × 8) 3 connector (CN902) 2 wire (flat type) (23core) (CN400) 1 wire (flat type) (27c.
14 3-5. MECHANISM DECK SECTION (MDM-7A) 3-6. BD BO ARD 2 four step screws (BVTTWH M3) 1 harness 4 mechanism deck 3 M102 M101 M103 S102 2 Remove the solder (Two portion) 2 Remove the solder (Two portio.
15 Function name MENU/NO button YES button AMS Left or Right knob Push Function Cancel or mov e to top hierarchy Set Select Set submenu SECTION 4 TEST MODE 4-1.
16 Display A UTO CHECK Err Display TEMP ADJUS LDPWR ADJUS Iop Write Iop NV Sa ve EF MO ADJUS EF CD ADJUS FBIAS ADJUS A G Set (MO) A G Set (CD) TEMP CHECK LDPWR CHECK EF MO CHECK EF CD CHECK FBIAS CHEC.
17 4-5-1. Operating the Continuous Playbac k Mode 1. Entering the continuous playback mode 1 Set the disc in the unit. (Whichev er recordable discs or discs for playback only are av ailable.) 2 Rotate the AMS knob and display “CPLA Y1 MODE”(C34). 3 Press the YES button to change the display to “CPLA Y1 MID”.
18 Function G x M m REC MODE PLA Y MODE LEVEL/DISPLA Y/CHAR A REPEA T Contents Sets continuous playback when pressed in the STOP state. When pressed during continuous playback, the tracking servo turns ON/OFF . Stops continuous playback and continuous recording.
19 Servo OFF T racking servo ON Recording mode OFF CL V normal mode T racking offset cancel OFF Groove Lo w reflection CL V A CL V UNLOCK Contents When Lit When Off Display Servo ON Tracking serv o OF.
20 SECTION 5 ELECTRICAL ADJUSTMENTS 5-1. PAR TS REPLACEMENT AND ADJUSTMENT If malfunctions caused by Optical pick-up such as sound skipping are suspected, follo w the following check. Chec k before replacement Other faults are suspected. Check the threading mechanism, etc.
21 5-6-4. Auto Check (See page 24) Start YES NO NO NO NO NO NO NO NO YES YES YES YES YES YES YES Replace IC195 Replace OP or IO195 Replace IC101, IC195, or D101 5-11.
22 5-7. Initial setting of adjustment v alues 5-8. Recording of Iop information 5-9. TEMP ADJUST 5-10. Laser po wer adjustment 5-11. Iop NV Sav e 5-12. Tra verse adjustment 5-13. Focus bias adjustment 5-16. Auto gain adjustment 5-6-4. A UTO CHECK 5-2.
23 5-6. CHECKS PRIOR TO REP AIRS These checks are performed before replacing parts according to “approximate specifications” to determine the faulty loca tions. For details, refer to “Checks Prior to Parts Replacement and Adjust- ments” (See page 8).
24 9. Press the YES button 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 specif ied value is satisfied . Do not rotate the AMS knob .
25 5-6-8. C PLA Y Check MO Error Rate Chec k Checking Procedur e : 1. Load a continuously recorded test disc (MD W -74/GA-1). (Refer to “5-5. Using the Continuously Recorded Disc”.) 2. Rotate the AMS knob and display “CPLA Y1 MODE”. 3. Press the YES button and display “CPLA Y1 MID”.
26 5-7. INITIAL SETTING OF ADJUSTMENT VALUE Note: Mode which sets the adjustment results recorded in the non-v ola- tile memory to the initial setting v alue. Howe ver the results of the temperature compensation offset adjustment will not c hange to the initial setting v alue.
27 KMS 260B 20101 H0576 Iop = 57.6 mA in this case Iop (mA) = Digital voltmeter reading (mV)/1 ( Ω ) 7. Then, rotate the AMS knob and displa y “LDPWR CHECK”. 8. Press the YES button once and display “LD 0.9 mW $ ”. Check that the reading of the laser po wer meter become 0.
28 11. Rotate the AMS knob until the wa veform of the oscilloscope moves closer to the specif ied value. In this adjustment, wav eform varies at interv als of approx. 2%. Adjust the wav eform so that the specified v alue is satisfied as much as possible.
29 5-14. ERROR RA TE CHECK 5-14-1. CD Error Rate Chec k Checking Procedur e : 1. Load a check disc (MD) TD YS-1. 2. Rotate the AMS knob and display “CPLA Y1 MODE”. 3. Press the YES button twice and display “CPLA Y1 MID”. 4. The display changes to “C1 = AD = ”.
30 NO TE: It is useful to use the jig. for checking the wavefor m. (Refer to Servicing Note on page 6.) [BD BO ARD] (SIDE B) D101 IC151 23 1 27 1 1 7 IC101 CN101 CN103 CN102 IC195 IC190 CN105 IC102 * NO TE 5-17.
31 31 SECTION 6 DIA GRAMS 6-1. CIRCUIT BOARDS LOCA TION THIS NO TE IS COMMON FOR PRINTED WIRING BO ARDS AND SCHEMA TIC DIA GRAMS. (In addition to this, the necessary note is printed in each bloc k.) For schematic diagrams. Note: • All capacitors are in µF unless otherwise noted.
MDS-JE440 32 32 6-2. BLOCK DIAGRAMS – BD 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 (KMS-260B/J1N) AUTOMATIC POWER CONTROL Q121, 122 APC PD APCREF AT AMP B.
MDS-JE440 33 33 – MAIN SECTION – 09 X550 45.1584MHz LED DRIVE Q751 ROTARY ENCODER FL DRIVE Q767 D751 STANDBY A/D, D/A CONVERTER IC500 SDTO ADDT DADT, BCK, LRCK SDTI (Page 32) A B LINE AMP IC350 MU.
34 34 • W A VEFORMS – MAIN Board – – DISPLA Y Board – – BD Board – 1 IC101 ek (RF) 2 IC101 ef (FE) (Play mode) 3 IC101 wh (TE) (Play mode) 4 IC151 qh (OSCI) 5 IC151 wj (LRCK) 6 IC151 wk (XBCK) 7 IC151 o; (FS4) 8 IC171 3 1.3Vp-p 0.2Vp-p 1.
MDS-JE440 35 35 6-3. PRINTED WIRING BO ARD – BD SECTION – Ref. No. Location D101 A-1 Q101 B-1 Q131 C-1 Q132 B-1 Q133 B-1 Q134 C-1 • Semiconductor Location Ref. No. Location D181 D-3 D183 D-3 IC101 A-3 IC102 B-3 IC141 C-1 IC151 C-2 IC153 C-3 IC171 D-2 • Semiconductor Location Ref.
MDS-JE440 36 36 6-4. SCHEMA TIC DIA GRAM – BD SECTION (1/2) – • See pa ge 34 for W avef orms. • See page 46 for IC Bloc k Diagrams. • See page 48 for IC Pin Functions.
MDS-JE440 37 37 6-5. SCHEMA TIC DIA GRAM – BD SECTION (2/2) – • See page 34 for W avef orms. • See page 46 for IC Block Dia grams. • See page 49 f or IC Pin Functions.
MDS-JE440 38 38 6-6. PRINTED WIRING BO ARD – MAIN SECTION (SIDE A) – Ref. No. Location D461 C-1 D462 C-1 D471 C-1 D472 D-1 D476 C-1 D477 C-1 D481 B-1 • Semiconductor Location Ref.
MDS-JE440 39 39 6-7. PRINTED WIRING BO ARD – MAIN SECTION (SIDE B) – Ref. No. Location D155 C-1 D156 C-1 D255 C-1 D256 C-1 D401 B-7 D402 B-7 D403 B-7 D404 B-7 D412 B-6 • Semiconductor Location Ref. No. Location D421 C-6 D422 C-6 D431 B-7 D432 B-7 D482 B-7 IC1 B-4 IC2 B-3 IC160 C-2 IC260 D-2 Ref.
MDS-JE440 40 40 6-8. SCHEMA TIC DIA GRAM – MAIN SECTION (1/3) – • See page 34 for W avef orms. • See page 52 for IC Pin Functions. PIN FUNCTION.
MDS-JE440 41 41 6-9. SCHEMA TIC DIA GRAM – MAIN SECTION (2/3) – • See page 34 for W aveforms. • See page 47 for IC Block Diagrams..
MDS-JE440 42 42 6-10. SCHEMA TIC DIA GRAM – MAIN SECTION (3/3) – • See page 47 for IC Bloc k Diagrams..
MDS-JE440 43 43 6-11. PRINTED WIRING BO ARD – PO WER SECTION –.
MDS-JE440 44 44 6-12. PRINTED WIRING BO ARD – DISPLA Y SECTION –.
MDS-JE440 45 45 6-13. SCHEMA TIC DIA GRAM – DISPLA Y SECTION – • See page 34 for W aveforms..
46 46 6-14. IC BLOCK DIA GRAMS IC101 CXA2523AR (BD BO ARD) – 1 – 2 + – IVR BB + – IVR AA + – IVR CC + – IVR DD + – IVR + – EE EE' EFB TESW PTGR 48 MORFO 47 MORFI 46 RFO 45 OPN 44 .
47 IC400 LA5643 (MAIN BO ARD) 12 11 10 13 1 23 4 8 7 6 5 9 - + - + DELA Y RESET CIRCUIT - + - + - + VREF1 VREF3 VREF2 DELA Y - + 1 2 3 4 5 6 7 8 9 10 GND MOTOR DRIVE NOISE FILTER CLAMP FWD.IN REV.IN VCC 1 VCC 2 NOISE FILTER MOTOR DRIVE MOTOR DRIVE MOTOR DRIVE T.
48 6-15. IC PIN FUNCTIONS • IC101 CXA2523AR RF Amplifier (BD BO ARD) Pin No . Pin Name I/O Function I J VC A to F PD APC APCREF GND TEMPI TEMPR SWDT SCLK XLA T XSTBY F0CNT VREF EQADJ 3T ADJ Vcc WBLA.
49 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 to 34 35 36 to 40 41 42 43 44 45 46 47 • IC151 CXD2662R Digital Signal Processor , Digital Serv o Signal Processor (BD BO ARD) Function Pin No .
50 Function Pin No . Pin Name I/O 48 49 50, 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 D1 D0 D2, D3 MVCI ASY O ASYI A VDD BIAS RFI A VSS P.
51 Function Pin No . Pin Name I/O 86 87 88 89 90 91 92 93 94 95 96 to 98 99 100 TFDR D VDD FFDR FRDR FS4 SRDR SFDR SPRD SPFD FGIN TEST1 to TEST3 D VSS EFMO O — O O O O O O O I (S) I — O Trac king servo dri ve PWM output (+) +3V power suppl y (Digital) Focus serv o driv e PWM output (+) Focus servo dr iv e PWM output (–) 176.
52 1 D A T A(FL) O Serial data signal output to the display dri ver . 2 CLK(FL) O Serial clock signal output to the display dri ver . L: Acti ve 3 A1-IN I A1 Control input. (Fixed at L) 4 SIRCS I Remote control input. 5 to 7 NC — Not used. 8 MUTE O Line out muting output.
53 55 HLD A/ALE O Microprocessor mode output. (Not used.) 56 MNT2 (XBUSY) I In the state of ex ecutive command from the CXD2662R 57 VSS — Ground. 58 (MNT1) SHCK I Track jump signal input from the CXD2662R 59 VCC — Po wer supply . (+3.3V) 60 EEP-WP O EEP-ROM write pr otect signal output.
54 7-1. CHASSIS SECTION 1 X-4947-208-1 FOOT ASSY (F50150S) 2 4-977-358-11 CUSHION 3 A-4725-161-A MAIN BOARD, COMPLETE (US,CND) 3 A-4725-165-A MAIN BOARD, COMPLETE (AEP ,UK,CIS,HK,AUS) 3 A-4725-169-A M.
55 7-2. FRONT P ANEL SECTION Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 51 X-4952-921-1 PANEL ASSY , FRONT (AEP ,UK,CIS,SP ,MY ,HK,AUS) 51 X-4952-922-1 PANEL ASSY , FR.
56 7-3. MECHANISM SECTION-1 (MDM-7A) 204 205 206 202 201 207 205 202 211 212 210 209 214 213 215 216 218 203 217 208 220 219 not supplied not supplied Ref.
57 7-4. MECHANISM SECTION-2 (MDM-7A) The components identified by mark 0 or dotted line with mark 0 are critical for saf ety . Replace only with par t n umber specified. Les composants identifi é s par une marque 0 sont critiques pour la s é curit é .
58 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks SECTION 8 ELECTRICAL P ARTS LIST A-4725-054-A BD BOARD, COMPLETE ******************* < CAP ACITOR > C101 1-135-259-11 T ANT AL. CHIP 10uF 20% 6.3V C102 1-135-259-11 T ANT AL.
59 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks IC153 8-759-671-27 IC MSM51V4400E-70TS-K IC171 8-759-096-87 IC TC7WU04FU(TE12R) IC181 8-759-481-17 IC MC74ACT08DTR2 IC190.
60 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < SWITCH > S101 1-762-596-21 SWITCH, PUSH (1 KEY) (LIMIT SW) S103 1-771-956-21 SWITCH, PUSH (1 KEY) (OUT SW) S104 1.
61 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks MAIN A-4725-161-A MAIN BOARD, COMPLETE (US,CND) ********************* A-4725-165-A MAIN BOARD, COMPLETE (AEP ,UK,CIS,HK,A.
62 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks D432 8-719-016-74 DIODE 1SS352-TPH3 D461 8-719-200-82 DIODE 11ES2-TB5 D462 8-719-200-82 DIODE 11ES2-TB5 D471 8-719-200-82.
63 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 0 R301 1-219-786-11 FUSIBLE 22 5% 1/4W 0 R306 1-219-786-11 FUSIBLE 22 5% 1/4W R356 1-216-815-11 METAL CHIP 330 5% 1/16W R357 1-216-822-11 METAL CHIP 1.
64 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks MISCELLANEOUS *************** 8 1-792-812-11 WIRE (FLA T TYPE) (27 CORE) 9 1-792-811-11 WIRE (FLA T TYPE) (23 CORE) 0 13 .
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