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Sony MDS-JB920 - page 1
MICROFILM SERVICE MANUAL MINI DISC DECK US Model Canadian Model AEP Model UK Model SPECIFICA TIONS MDS-JB920 Model Name Using Similar Mechanism MDS-JE520 MD Mechanism T ype MDM-5A Optical Pick-up T ype KMS-260A/J1N System MiniDisc digital audio system Disc MiniDisc Laser Semiconductor laser ( λ =780nm) Emission duration: continuous Laser output Le ...
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Sony MDS-JB920 - page 2
– 2 – General P ow er requirements Where purchased Power requirements Continental Europe and UK 220 – 230 V A C, 50/60 Hz U.S.A and Canada 120 V A C, 60 Hz Power consumption 18 W Dimensions (approx.) (w/h/d) incl.projecting parts and controls 430 × 107.5 × 287 mm (17 × 4 1 / 4 × 11 3 / 8 in) Mass (approx.) 4.8 kg (10 lb 9 oz) Supplied acc ...
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Sony MDS-JB920 - page 3
– 3 – Items of Err or Histor y Mode Items and Contents Selecting the T est Mode Display Details of History E00 No error E01 Disc error . PTOC cannot be r ead (DISC ejected) E02 Disc error . UT OC error (DISC not ejected) E03 Loading error E04 Address cannot be read (Servo has deviated) T able of Error Codes Error Code Error Code Details of Erro ...
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Sony MDS-JB920 - page 4
– 4 – SECTION 1 SER VICING NO TES SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety check before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other e xposed metal parts for A C leakage. Check leakage as described below . LEAKA GE ...
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Sony MDS-JB920 - page 5
– 5 – Flexible Cir cuit Board Repairing • Keep the temperature of the soldering iron around 270 ˚C dur - ing repairing. • Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). • Be careful not to apply force on the conductor when soldering or unsoldering. Notes on chip component replacement • Neve ...
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Sony MDS-JB920 - page 6
– 6 – JIG FOR CHECKING BD BO ARD W A VEFORM The special jig (J-2501-149-A) is useful for checking the wa v eform of the BD board. The names of terminals and the checking items to be performed are shown as follows. GND : Ground I+3V : For measuring IOP (Check the deterioration of the optical pick-up laser) IOP : For measuring IOP (Check the dete ...
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Sony MDS-JB920 - page 7
– 7 – IOP Data Recording and Displa y When Pickup and Non-v olatile Memory (IC171 of BD boar d) are Replaced The IOP v alue labeled on the pick-up can be recorded in the non-volatile memory . By recording the v alue, it will eliminate the need to look at the v alue on the label of the optical pick-up. When replacing the pick-up or non-volatile ...
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Sony MDS-JB920 - page 8
– 8 – Chec ks Prior to Parts Replacement and Adjustments Before performing repairs, perform the following checks to determine the faulty locations up to a certain extent. Details of the procedures are described in “5 Electrical Adjustments”. • 0.9 mW power Specified value : 0.84 to 0.92 mW • 7.0 mW power Specified value : 6.8 to 7.2 mW ...
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Sony MDS-JB920 - page 9
– 9 – [] Retry Cause Display Mode • In this test mode, the causes for retry of the unit during recording can be displayed on the fluorescent indicator tube. During playback, the “track mode” for obtaining track information will be set. This is useful for locating the faulty part of the unit. • The following will be displa ...
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Sony MDS-JB920 - page 10
– 10 – Reading the Retry Cause Display 84218421 b7 b6 b5 b4 b3 b2 b1 b0 00000001 00000010 00000100 00001000 00010000 00100000 01000000 10000000 Hexa- decimal Details 01 02 04 08 10 20 40 80 Higher Bits Lower Bits Hexadecimal Bit Binary When 0 Emphasis OFF Monaural This is 2-bit display . Nor mally 01. 01:Normal audio. Others:Invalid Audio (Norm ...
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Sony MDS-JB920 - page 11
– 11 – SECTION 2 GENERAL LOCA TION OF CONTROLS • Front view 1 ST ANDBY indicator 2 1 / u (Po wer) button 3 TIMER switch 4 MEGA CONTR OL button 5 MEGA CONTR OL indicator 6 MUSIC SYNC button 7 SCR OLL/CLOCK SET button 8 DISPLA Y/CHAR button 9 Remote sensor 0 Fluoresent indicator tube !¡ MENU/NO button !™ ≠ AMS ± knob !£ YES button !¢ RE ...
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Sony MDS-JB920 - page 12
– 12 – ...
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Sony MDS-JB920 - page 13
– 13 – ...
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Sony MDS-JB920 - page 14
– 14 – CASE (4095269) Note: Follow the disassemb ly procedure in the numerical order given. SECTION 3 DISASSEMBL Y • This set can be disassembled in the order sho wn below . CASE (4095269) (P age 14) FR ONT P ANEL SECTION (P age 15) MAIN BOARD (P age 15) MECHANISM SECIT ON (MDM-5A) (P age 16) BASE UNIT (MBU-5A), BD BOARD (P age 17) SW BOARD , ...
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Sony MDS-JB920 - page 15
– 15 – FRONT P ANEL SECIT ON MAIN BO ARD 4 claw 3 five scre ws (BVTP3 × 8) 4 claw 5 front panel section 1 connector (CN790) 2 wire (flat type) (21 core) (MAIN-DISP) (CN800) 1 two connectors (CN801) 2 wire (flat type) (21 core) (MAIN-BD) (CN402) 2 wire (flat type) (23 core) (CN400) 4 MAIN board 2 wire (flat type) (21 core) (MAIN-DISP) (CN800) 1 ...
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Sony MDS-JB920 - page 16
– 16 – MECHANISM SECTION (MDM-5A) 3 four step scre ws (BVTTWH M3) 4 Remov e the mechanism deck (MDM-5A) to direction of the arrow . 1 connector (CN401) 2 wire (flat type) (21 core) (MAIN-BD) (CN402) 2 wire (flat type) (23 core) (CN400) SLIDER (CAM) 1 two screws (P2.6x6) 2 bracket (Guide L) 3 leaf spring 5 bracket (Guide R) 6 slider (Cam) 4 two ...
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Sony MDS-JB920 - page 17
– 17 – B ASE UNIT (MBU-5A), BD BO ARD 1 three screws (P2.6 × 6) 2 base unit (MBU-5A) 3 Remove the solder (Five portion). 4 screw (M1.7 × 4) 6 flexible board (CN101) 7 BD board 5 flexible board (CN104) SW BO ARD , LO ADING MO T OR (M103) 5 three screws (BTP2.6 × 6) 6 SW board 4 loading motor (M103) 3 two screws (PWH1.7 × 4) 1 screw (PTPWH M2 ...
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Sony MDS-JB920 - page 18
– 18 – SECTION 4 TEST MODE 1. PRECA UTIONS FOR USE OF TEST MODE • As loading related operations will be performed regardless of the test mode operations being performed, be sure to check that the disc is stopped before setting and removing it. Even if the [EJECT] button is pressed while the disc is rotating during continuous pl ...
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Sony MDS-JB920 - page 19
– 19 – 5. SELECTING THE TEST MODE There are 31 types of test modes as shown belo w . The groups can be switched by rotating the [AMS] knob . After selecting the group to be used, press the [YES] button. After setting a certain group, rotating the [AMS? ...
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Sony MDS-JB920 - page 20
– 20 – 5-1. Operating the Continuous Pla yback Mode 1. Entering the continuous playback mode (1) Set the disc in the unit. (Whichever recordable discs or discs for playback only are available.) (2) Rotate the [AMS] knob and displa y “CPLA Y MODE” (C30). (3) Press the [YES] b utton to change th ...
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Sony MDS-JB920 - page 21
– 21 – 6. FUNCTIONS OF O THER BUTT ONS 7. TEST MODE DISPLA YS Each time the [DISPLA Y/CHAR] button is pressed, the display changes in the follo wing order . 1. Mode display Displays “TEMP ADJUST”, “CPLA YMODE”, etc. 2. Error rate display Displays the error rate in the follo wing way . C = ππππ AD = ππππ C = Indicates the C1 erro ...
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Sony MDS-JB920 - page 22
– 22 – · P REC –SYNC A.SP A CE O VER B A- TRA CK DISC DA TE CLOCK When Off Contents Display When Lit During continuous playback (CL V : ON) Tracking serv o OFF Recording mode ON CL V low speed mode ABCD adjustment completed Tracking of fset cancel ON Tracking auto g ain OK Focus auto gain OK Pit High reflection CL V -S CL V LOCK STOP (CL V : ...
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Sony MDS-JB920 - page 23
– 23 – SECTION 5 ELECTRICAL ADJUSTMENTS 1. P ARTS REPLA CEMENT AND ADJUSTMENT • Check and adjust the MDM and MBU as follows. The procedure changes according to the part replaced • Abbreviation OP : Optical pick-up OWH : Overwrite head • Temperature compensation offset check • Laser power check • Traverse check • Focus bias check • ...
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Sony MDS-JB920 - page 24
– 24 – 2. PRECA UTIONS FOR CHECKING LASER DIODE EMISSINON T o check the emission of the laser diode during adjustments, nev er view directly from the top as this may lose your eye-sight. 3. PRECA UTIONS FOR USE OF OPTICAL PICK-UP (KMS-260A) As the laser diode in the optical pick-up is easily damaged by static electricity , solder the laser ta p ...
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Sony MDS-JB920 - page 25
– 25 – 6. CHECK PRIOR T O REP AIRS These checks are performed before replacing parts according to “approximate specifications” to determine the faulty locations. For details, refer to “Checks Prior to Parts Re placement and Adjust- ments” (See page 8). 6-1. T emperature Compensation Offset Chec k When performing adjustments, set the int ...
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Sony MDS-JB920 - page 26
– 26 – 9. Press the [YES] button display “EFB = MO-P”. Then, the optical pick-up moves to the pit area automatically and servo is imposed. 10. Observe the waveform of the oscilloscope, and check that the specified value is satisfied. Do not rotate the [AMS] knob. (T rav erse W a v ef orm) 11 . ...
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Sony MDS-JB920 - page 27
– 27 – 7. INITIAL SETTING OF ADJUSTMENT V ALUE Note: Mode which sets the adjustment results recorded in the non-volatile memory to the initial setting value. However the results of the tempera- ture compensation offset adjustment will not c hange to the initial setting value. If initial setting is performed, perform all adjustments again exclud ...
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Sony MDS-JB920 - page 28
– 28 – 7. Then, rotate the [AMS] knob and display “LDPWR CHECK” (C02). 8. Press the [YES] button once and display “LD 0.9 mW $ ”. Check that the reading of the laser power meter become 0.85 to 0.91 mW . 9. Press the [YES] button once more and display “LD 7.0 mW $ ”. Check that the read ...
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Sony MDS-JB920 - page 29
– 29 – ± ≠ ± ≠ 8. Rotate the [AMS] knob so that the waveform of the oscilloscope becomes the specified value. (When the [AMS] knob is rotated, the of “EFB- ” changes and the waveform changes.) In this adjustment, wa veform var ies at interv ...
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Sony MDS-JB920 - page 30
– 30 – 13. ERROR RA TE CHECK 13-1. CD Error Rate Check Checking Procedur e : 1. Load a check disc (MD) TD YS-1. 2. Rotate the [AMS] knob and display “CPLA Y MODE” (C30). 3. Press the [YES] b utton twice and display “CPLA Y MID”. 4. The display changes to “C = AD = ”. 5. Check that the ...
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Sony MDS-JB920 - page 31
– 31 – 16. ADJUSTING POINTS AND CONNECTING POINTS [BD BO ARD] (SIDE A) CN110 NO TE D101 I+3V IOP TE RF VC GND IC171 IC121 IC101 IC192 CN101 Note: It is useful to use the jig. for checking the waveform. (Refer to Servicing Notes on page 6.) [BD BO ARD] (SIDE B) ...
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Sony MDS-JB920 - page 32
– 32 – 6-1. IC PIN FUNCTION DESCRIPTION SECTION 6 DIA GRAMS • BD BOARD IC101 CXA2523AR (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. Pin Name I/O Function 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 (+1.65V) g ...
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Sony MDS-JB920 - page 33
– 33 – • BD BOARD IC121 CXD2654R Pin No. Pin Name I/O Function 1 MNT0 (FOK) O Focus OK signal output to the system controller (IC800) “H” is output when focus is on (“L”: NG) 2 MNT1 (SHOCK) O Track jump detection signal output to the system controller (IC800) 3 MNT2 (XBUSY) O Busy monitor signal output to the system controller (IC800) ...
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Sony MDS-JB920 - page 34
– 34 – Pin No. Pin Name I/O Function 45 A09 O Address signal output to the D-RAM (IC124) 46 XRAS O Row address strobe signal output to the D-RAM (IC124) “L” active 47 XWE O Write enable signal output to the D-RAM (IC124) “L” active 48 D1 I/O 49 D0 I/O 50 D2 I/O 51 D3 I/O 52 MVCI I (S) Digital in PLL oscillation input from the external V ...
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Sony MDS-JB920 - page 35
– 35 – Pin No. Pin Name I/O Function 91 SRDR O Sled servo drive PWM signal (–) output to the BH6511FS (IC152) 92 SFDR O Sled servo drive PWM signal (+) output to the BH6511FS (IC152) 93 SPRD O Spindle servo drive PWM signal (–) output to the BH6511FS (IC152) 94 SPFD O Spindle servo drive PWM signal (+) output to the BH6511FS (IC152) 95 FGIN ...
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Sony MDS-JB920 - page 36
– 36 – • MAIN BOARD IC100 CXD8607N (A/D CONVERTER) Pin No. Pin Name I/O Function 1 INRP I R-ch analog signal (–) input terminal 2 INRM I R-ch analog signal (+) input terminal 3 REFI I Reference voltage (+3.3V) input terminal (for A/D converter section) 4 AVDD — Power supply terminal (+5V) (for A/D converter section, analog system) 5 AVSS ...
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Sony MDS-JB920 - page 37
– 37 – Pin No. Pin Name I/O Function 40 AVDDL — Power supply terminal (+5V) (for L-ch side D/A converter section, analog system) Not used (open) 41 L1 O L-ch PLM signal 1 output terminal Not used (open) 42 VDD2 — Power supply terminal (+5V) (for L-ch side D/A converter section, digital system) Not used (open) 43, 44 VDD1 — Power supply te ...
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Sony MDS-JB920 - page 38
– 38 – • MAIN BOARD IC800 M30610MCA-264FP (SYSTEM CONTROLLER) Pin No. Pin Name I/O Function 1 JOG1 I JOG dial pulse input from the rotary encoder (S713 ≠ AMS ± ) 2 JOG0 I JOG dial pulse input from the rotary encoder (S713 ≠ AMS ± ) 3C 1 O Monitor output terminal for the test C1 error rate is output when test mode 4 ADER O Monitor output ...
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Sony MDS-JB920 - page 39
MDS-JB920 – 39 – – 40 – Pin No. Pin Name I/O Function 59 WR-PWR O Laser power select signal output to the CXD2654R (IC121) and HF module switch circuit “H”: recording mode, “L”: playback mode 60 MNT3 (SLOCK) I Spindle servo lock status monitor signal input from the CXD2654R (IC121) 61 SDA I/O Two-way data bus with the EEPROM (IC171) ...
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Sony MDS-JB920 - page 40
MDS-JB920 – 41 – – 42 – 6-2. BLOCK DIA GRAM – SER V O Section – F C B D A E I J J I B A C D E F DETECTOR 1 2 J I 4 5 6 7 A B C D 8 9 E F LD PD LASER DIODE ILCC PD OPTICAL PICK-UP (KMS-260A/J1N) AUTOMATIC POWER CONTROL Q162, 163 LASER ON SWITCH Q101 OVER WRITE HEAD DRIVE IC181, Q181, 182 HF MODULE SWITCH IC103, Q102 – 104 11 10 APC PD ...
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Sony MDS-JB920 - page 41
MDS-JB920 – 43 – – 44 – 6-3. BLOCK DIA GRAM – MAIN Section – 05 X200 45MHz LED DRIVE Q756 ROTARY ENCODER FL DRIVE Q781, 782 D756 STANDBY D758 MEGA CONTROL LED DRIVE Q758 72 74 A/D CONVERTER IC100 BUFFER IC101 11 15 16 10 ADDT ADDT DADT, BCK, LRCK INLP VREF VREFL R-CH R-CH R-CH BCK1 MCKI LRCK1 DPD 12 AOUTL– 13 AOUTL+ 12 INLM INRP INRM ...
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Sony MDS-JB920 - page 42
– 45 – – 46 – • Cir cuit Boards Location AC board SW board BAT board MAIN board VOL board DISP board BD board PSW board HP board Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. • All resistors are in Ω and 1 / 4 W or less ...
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Sony MDS-JB920 - page 43
– 47 – – 48 – 6-5. PRINTED WIRING BO ARDS – BD Section – • See page 45 for Cir cuit Boards Location. • Semiconductor Location Ref. No. Location D101 A-1 D181 D-3 D183 D-3 IC103 B-1 IC171 D-1 Q102 B-1 Q103 B-1 Q104 B-1 • Semiconductor Location Ref. No. Location IC101 A-3 IC121 C-3 IC123 D-2 IC124 C-3 IC152 B-1 IC181 C-1 IC192 D-1 Q ...
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Sony MDS-JB920 - page 44
MDS-JB920 – 49 – – 50 – 6-6. SCHEMA TIC DIA GRAM – BD Section (1/2) – • See pa ge 53 for Wa veforms. • See pa ge 70 and 71 for IC Block Diagrams. (P age 51) (Page 51) (Page 51) (P age 52) (P age 52) (P age 52) (P age 52) ...
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Sony MDS-JB920 - page 45
MDS-JB920 – 51 – – 52 – 6-7. SCHEMA TIC DIA GRAM – BD Section (2/2) – • See page 53 for Wa veforms. • See pa ge 70 and 71 for IC Block Diagrams. Note: • V oltages and w av eforms are dc with respect to ground in playback mode. no mark : Stop ( ) : PB < > : REC ∗ : Impossible to measure The components identified by mark ! o ...
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Sony MDS-JB920 - page 46
MDS-JB920 – 53 – – 54 – • W aveforms – BD board – 1 IC101 1 , 2 (I, J) (Play mode) 5 IC121 @¶ (LRCK) 2 IC101 4 (A) (Play mode) 3 IC101 8 , 9 (E, F) (Play mode) 4 IC121 !§ (OSI) 6 IC121 @• (XBCK) 7 IC121 @ª (FS256) 8 IC121 (º (FS4) 2 IC200 4 (LRCK) 3 IC200 @• (XOUT) 4 IC200 $£ (256FSO) 0.46 Vp-p 0.1 Vp-p 0.06Vp-p 3.2 Vp-p 44.1 ...
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Sony MDS-JB920 - page 47
MDS-JB920 – 55 – – 56 – 6-8. SCHEMA TIC DIA GRAM – MAIN Section (1/3) – • See pa ge 54 for W a veforms. • See page 72 and 73 f or IC Block Diagrams. (P age 69) (P age 51) (P age 68) (P age 59) (P age 68) (P age 57) ...
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Sony MDS-JB920 - page 48
MDS-JB920 – 57 – – 58 – Note: • V oltages and w av eforms are dc with respect to ground in playback mode. no mark : PB ∗ : Impossible to measure The components identified by mark ! or dotted line with mark ! are critical for saf ety . Replace only with part number specified. Les composants identifiés par une marque ! sont critiques pou ...
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Sony MDS-JB920 - page 49
MDS-JB920 – 59 – – 60 – 6-10. SCHEMA TIC DIA GRAM – MAIN Section (3/3) – • See pa g e 53 and 54 f or Wa veforms. • See page 72 and 73 f or IC Block Diagrams. Note: • V oltages and w av eforms are dc with respect to ground in playback mode. no mark : PB ∗ : Impossible to measure (P age 68) (P age 68) (P age 58) (P age 56) ...
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Sony MDS-JB920 - page 50
MDS-JB920 – 61 – – 62 – 6-11. PRINTED WIRING BO ARD – MAIN Boar d (side A) – • See page 45 for Cir cuit Boards Location. ...
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Sony MDS-JB920 - page 51
MDS-JB920 – 63 – – 64 – Ref. No. Location • Semiconductor Location D100 J-4 D101 J-4 D102 I-3 D103 I-3 D400 F-6 D700 E-9 D701 E-9 D703 E-5 D704 E-5 D705 A-3 D706 B-4 D707 C-3 D708 C-3 D709 B-4 D710 B-4 D711 B-4 D712 B-5 D713 D-2 D714 D-3 D715 A-1 D716 A-1 D717 A-2 D718 A-2 D719 D-2 D720 B-5 D721 B-4 D800 F-1 L201 H-6 L206 H-5 IC100 J-6 IC ...
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Sony MDS-JB920 - page 52
MDS-JB920 – 65 – – 66 – 6-13. PRINTED WIRING BO ARDS – P ANEL Section – • See pa g e 45 for Circuit Boar ds Location. US, CND US, CND (P age 63) (Page 64) (Page 63) (P age 64) (P age 66) (Page 65) ...
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Sony MDS-JB920 - page 53
MDS-JB920 – 67 – – 68 – 6-14. SCHEMA TIC DIA GRAM – P ANEL Section – • See page 54 for Wa veforms. Note: • V oltages and w av eforms are dc with respect to ground in playback mode. no mark : Stop (P age 60) (P age 56) (P age 60) (Page 55) ...
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Sony MDS-JB920 - page 54
MDS-JB920 – 69 – – 70 – 6-15. SCHEMA TIC DIA GRAM – BD SWITCH Section – 6-16. PRINTED WIRING BO ARD – BD SWITCH Section – • See page 45 for Cir cuit Boards Location. MAIN BOARD (1/3) CN401 (Page 55) • IC Block Dia grams – BD Board – IC101 CXA2523AR –1 –2 + – IVR BB + – IVR AA + – IVR CC + – IVR DD + – IVR + – ...
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Sony MDS-JB920 - page 55
– 71 – IC121 CXD2654R 100 99 98 97 96 95 94 93 EFMO DVSS TEST3 TEST2 TEST1 FGIN SPFD SPRD 92 SFDR 91 SRDR 90 FS4 89 FRDR 88 FFDR 87 DVDD 86 TFDR 85 TRDR 84 LDDR 83 APCREF 82 DTRF 81 CKRF 80 XLRF 79 F0CNT 78 ADFG 77 APC 76 DCHG 75 TE 74 SE 73 AVSS 72 ADRB 71 ADRT 70 AVDD 69 ADIO 62 CLTV 61 FILO 60 FILI 59 PCO 57 RFI 58 AVSS 56 BIAS 55 AVDD 54 AS ...
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Sony MDS-JB920 - page 56
– 72 – – MAIN Boar d – IC100 CXD8607N 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 INRP INRM REFI AVDD AVSS APD NU NU TEST1 LRCK1 BCK1 ADDT V35A VSS1 (LF) MCKI DPD VSS2(LF) INIT MODE SHIFT LATCH 256CK V35D VSS2 512CK BCK2 DADT LRCK2 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 3 ...
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Sony MDS-JB920 - page 57
– 73 – IC200 CXD8767N 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 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 INVI 128FsO TEST DINIT MUTEL OVFLAG MUTER MCKIN DVSS1 DVDD1 64FSI NU XIN XVSS AVDDR2 AVSSR2 AVDDR1 64FSO DVSS2 L VCKO CKVdd 256FSO DVDD2 R1(–) R1(+) R2(+) R2(–) ...
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Sony MDS-JB920 - page 58
– 74 – IC300 SN74HC153ANS 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 2G 2C3 2C2 2C1 2C0 2Y VCC 2C3 2C2 2C1 2C0 STROBE 2G OUTPUT 2Y A SELECT DATA INPUTS BB AA BB AA 1G 1C3 1C2 1C1 1C0 1Y STROBE 1G B SELECT 1C3 1C2 1C1 1C0 OUTPUT 1Y GND DATA INPUTS IC301, 704 SN74HCU04ANS-E20 14 13 12 11 10 9 8 1 2 3 4 5 6 7 VCC GND IC700 LA5632 1 – + 12 DELAY CIRC ...
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Sony MDS-JB920 - page 59
– 75 – SECTION 7 EXPLODED VIEWS Les composants identifiés par une marque ! sont critiquens pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié. The components identified by mark ! or dotted line with mark ! are critical for safety . Replace only with part number specified. • Items marked “*” are not stoc ...
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Sony MDS-JB920 - page 60
– 76 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark (2) FR ONT P ANEL SECTION 51 4-998-590-01 PANEL, FRONT (BLACK) 51 4-998-590-31 PANEL, FRONT (SIL VER) 52 4-942-568-41 EMBLEM (NO.5), SONY 53 4-998-607-01 INDICA TOR (POWER) 54 4-998-606-01 INDICA TOR (MEGA) 55 4-950-189-01 KNOB (A) (VOL) 56 4-998-598-01 WINDOW (DIS ...
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Sony MDS-JB920 - page 61
– 77 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 201 1-668-111-11 SW BOARD * 202 4-996-217-01 CHASSIS 203 4-996-223-01 INSULA TOR (F) (BLACK) * 204 4-996-218-01 BRACKET (GUIDE R) 205 4-996-277-01 SPRING (O/C), TENSION 206 4-996-226-01 LEVER (O/C) 207 4-999-347-01 INSULA TOR (R) (GREEN) * 208 4-996-225-01 BRACKE ...
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Sony MDS-JB920 - page 62
– 78 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 251 A-4699-893-A BD BOARD, COMPLETE 252 3-372-761-01 SCREW (M1.7), T APPING * 253 4-996-267-01 BASE (BU-D) * 254 4-996-255-01 BASE (BU-C) 255 4-900-590-01 SCREW , PRECISION SMALL 256 4-996-258-01 SPRING, COMPRESSION 257 4-996-262-01 GEAR (SL-C) 258 1-667-954-11 F ...
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Sony MDS-JB920 - page 63
– 79 – SECTION 8 ELECTRICAL P ARTS LIST NO TE: • Due to standardization, replacements in the parts list may be dif ferent from the parts speci- fied in the diagrams or the components used on the set. • -XX and -X mean standardized parts, so they may hav e some difference from the original one. • RESISTORS All resistors are in ohms. MET AL ...
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Sony MDS-JB920 - page 64
– 80 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark BD C168 1-163-038-00 CERAMIC CHIP 0.1uF 25V C169 1-125-822-21 T ANT ALUM 10uF 20% 10V C171 1-163-038-00 CERAMIC CHIP 0.1uF 25V C181 1-104-913-11 TANT AL. CHIP 100uF 20% 16V C183 1-163-038-00 CERAMIC CHIP 0.1uF 25V C184 1-117-970-11 ELECT CHIP 22uF 20% 10V C185 1-16 ...
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Sony MDS-JB920 - page 65
– 81 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark BD DISP HP R173 1-216-121-00 RES,CHIP 1M 5% 1/10W R175 1-216-065-00 RES,CHIP 4.7K 5% 1/10W R177 1-216-061-00 METAL CHIP 3.3K 5% 1/10W R179 1-216-085-00 METAL CHIP 33K 5% 1/10W R180 1-216-073-00 METAL CHIP 10K 5% 1/10W R182 1-216-089-00 RES,CHIP 47K 5% 1/10W R183 1- ...
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Sony MDS-JB920 - page 66
– 82 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark HP MAIN C796 1-162-294-31 CERAMIC 0.001uF 10% 50V C797 1-164-159-11 CERAMIC 0.1uF 50V C798 1-164-159-11 CERAMIC 0.1uF 50V < CONNECTOR > * CN790 1-564-708-11 PIN, CONNECTOR (SMALL TYPE) 6P < IC > IC790 8-759-634-50 IC M5218AL < JACK > J790 1-770-90 ...
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Sony MDS-JB920 - page 67
– 83 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MAIN C244 1-126-023-11 ELECT 100uF 20% 25V C245 1-126-023-11 ELECT 100uF 20% 25V C246 1-126-023-11 ELECT 100uF 20% 25V C247 1-136-154-00 FILM 0.012uF 5% 50V C248 1-136-154-00 FILM 0.012uF 5% 50V C249 1-136-154-00 FILM 0.012uF 5% 50V C250 1-136-154-00 FILM 0.012uF 5 ...
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Sony MDS-JB920 - page 68
– 84 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MAIN CN700 1-564-513-11 PLUG, CONNECTOR 10P CN800 1-770-649-11 CONNECTOR, FFC/FPC 21P CN801 1-691-765-11 PLUG (MICRO CONNECTOR) 3P < DIODE > D100 8-719-911-19 DIODE 1SS119 D101 8-719-911-19 DIODE 1SS119 D102 8-719-911-19 DIODE 1SS119 D103 8-719-911-19 DIODE 1 ...
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Sony MDS-JB920 - page 69
– 85 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R108 1-259-476-11 CARBON 100K 5% 1/6W R109 1-259-460-11 CARBON 22K 5% 1/6W R110 1-259-460-11 CARBON 22K 5% 1/6W R111 1-259-500-11 CARBON 1M 5% 1/6W R112 1-259-500-11 CARBON 1M 5% 1/6W R113 1-259-500-11 CARBON 1M 5% 1/6W R114 1-259-500-11 CARBON 1M 5% 1/6W R115 1-25 ...
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Sony MDS-JB920 - page 70
– 86 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R714 1-247-891-00 CARBON 330K 5% 1/4W R715 1-249-433-11 CARBON 22K 5% 1/4W R800 1-249-429-11 CARBON 10K 5% 1/4W R801 1-249-429-11 CARBON 10K 5% 1/4W R802 1-249-429-11 CARBON 10K 5% 1/4W R803 1-249-429-11 CARBON 10K 5% 1/4W (AEP , UK) R804 1-249-429-11 CARBON 10K 5% ...
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Sony MDS-JB920 - page 71
– 87 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark S603 1-771-264-11 SWITCH, PUSH (CHUCKING IN) S604 1-771-264-11 SWITCH, PUSH (PB POSITION) ************************************************************** * 1-669-997-11 VOL BOARD ********** < CAP ACITOR > C765 1-162-294-31 CERAMIC 0.001uF 10% 50V C766 1-162-29 ...
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Sony MDS-JB920 - page 72
– 88 – MDS-JB920 Sony Corporation Home A&V Products Compan y 9-922-869-11 98E0572-1 Printed in Japan © 1998. 5 Published by Quality Assurance Dept. (Shibaura) ...
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