Sony MZ-300 manual

V er 1.2 2001.12 MZ-E300 SERVICE MANUAL POR T ABLE MINIDISC PLA YER SPECIFICA TIONS US Model Canadian Model AEP Model E Model Chinese Model Model Name Using Similar Mechanism NEW MD Mechanism T ype MT -MZE300-176 Optical Pick-up Mechanism T ype LCX-4E US and f oreign patents licensed from Dolby Laboratories Licensing Cor poration System Audio playi[...]

2 MZ-E300 Specifications ........................................................................... 1 1. SER VICING NOTE ...................................................... 2 2. GENERAL Preparing a Power Source .................................................. 3 T o Connect the Headphones/Earphones ............................ 3 Playing an MD [...]

3 MZ-E300 SECTION 2 GENERAL This section is extr acted from instruction manual.[...]

4 MZ-E300 SECTION 3 DISASSEMBL Y Note : Follow the disassembly procedure in the numerical order given. 3-1. “LID ASSY , UPPER”, HOLDER ASSY 3-2. MECHANISM DECK • The equipment can be r emoved using the following procedure. 1 Screws (1.4),MI Case ASSY 3 Lid ASSY , Upper 5 Holder ASSY Holder ASSY Reinforcement Spring (POP/L) 4 Move it away from[...]

5 MZ-E300 3-3. MAIN BO ARD 3-4. OPTICAL PICK-UP ASSY 1 Screws, tapping (1.7) 2 Claw 3 Main boar d Knob (HOLD) 3 Screw (MI 1.4) 4 Spring, thrust deten t 1 Washer 2 Gear (SA) 5 Optical pick-up ASSY (LCX-4E) Note : On installation of main board, adjust the position of both switch (S809) and knob (HOLD).[...]

6 MZ-E300 3 In the normal mode, operate the keys on the set and those on the remote control as specified below: T urn on HOLD switch on the set. Holding down x (ST OP) key on the set, press the keys on the remote control in the following sequence: > N t > N t . t . t > N t . t > N t . t X t X R_VDD R_DATA R_KEY R_GND TP804 TP803 TP802 T[...]

7 MZ-E300 888:88 130 u F 1SHUFF AVLS BASS All on All off Microprocessor version display 888 u 008 V1.300 F 1SHUFF PGM SOUND 1 2 BASS 1 2 All on All off Microprocessor version display The remote control display v aries with the type of remote control unit used. (Example shown: RM-MC10L) 4-2-2. Operations when the TEST MODE is set When the TEST MODE [...]

8 MZ-E300 Note: In the Power mode, the item title display is only displayed. 5. T o terminate the Manual mode and return to the TEST MODE, press x key . 4. During each test mode, the display is changed from one to another each time DISPLA Y key is pressed (Remote control only). 4-5. O VERALL ADJUSTMENT MODE 4-5-1. Outline of the function This mode [...]

9 MZ-E300 4-6-1. Electrical offset adjustment method Note: Doing adjustment by the state that a disc does not enter . 1. Confirm the po wer voltage is 1.5V . 2. Set to the test mode. 3. Press the – key of main unit activates the overall adjustment mode. Main unit LCD display 4. Press the + ke y . Main unit LCD display 5. Press the + ke y once mor[...]

10 MZ-E300 5 Rewriting of the adjustment value. 1.After CD overall adjustment, switch to manual mode No. 321 in the condition the disc is in. 2.Press – key on the remote control unit to set 1 step down the adjustment value of No. 321, and press the pause key on the remote control unit to write this value to NV . 3.Press the >B key on the remot[...]

11 MZ-E300 6. If NG in the overall MO adjustments, return to Reset NV and perform the adjustment again. The NG item and “ng” alternately flash on the main unit LCD display . XXX: NG item No. YY : Adjustment V alue 7. If OK through the overall MO adjustments, press x key to return to the TEST MODE and terminate the Overall Adjust- ment mode. Mai[...]

12 MZ-E300 3. MO overall adjustment Item No . Description 100h GR V setting ser vo off 112h ALF A offset adjustment 113h IJ offset adjustment 114h FE offset adjustment 118h A W_D W_OFFSET 200h LPIT setting ser v o off 571h CL V ST ART 561h Mov e to inside of SLED perimeter 220h Focus on 223h TE offset adjustment 221h TE gain adjustment 223h TE offs[...]

13 MZ-E300 Pin No. Pin name I/O Description 1 FR I Connected to Bias resistor for VTEC oscillating frequency 2 ISET I Connected to Bias resistor for VTEC current char ge pump 3 VCVDD — Power supply for VTEC 4 PDD O VTEC current charge pump output 5 TEST3 I Input for test 6 TEST2 I Input for test 7 SLCO O Slice level output for HF signal 8 SLCIST [...]

14 MZ-E300 46 MAD2 O* Address output to DRAM (NC) 47 SLPWMR O* Sled PWM output 48 MAD1 O* Address output to DRAM (NC) 49 FOPWMF O* Focus PWM output 50 MAD0 O* Address output to DRAM (NC) 51 FOPWMR O* Focus PWM output 52 TRPWMF O* T racking PWM output 53 TRPWMR O* T racking PWM output 54 MAD10 O* Address output to DRAM (NC) 55 A VDD — Power supply[...]

15 MZ-E300 95 MD2 I/O Data input/output to/from DRAM 96 SHOCK O* SHOCK/RFNG output 97 MCASB O* CAS signal output to DRAM (NC) 98 PCK O VTEC system clock signal output 99 MOEB O* OE signal output to DRAM (NC) 100 VCVSS — Ground for VTEC * : I/O on the test mode. Pin No. Pin name I/O Description[...]

16 MZ-E300 Pin No. Pin name I/O Description 1 UNREG_MON I UNREG voltage monitor input (A/D input) 2 RF_VCMON I Reference voltage (1.2V) for adjusting po wer supply voltage input (A/D input) 3 RMC_KEY I Remote commander with phones k ey input (A/D input) 4 SET_KEY I K ey on the set itself input (A/D input) S801-807 (STOP , FF/PB, REW/PB, V OL+, VOL-[...]

17 17 MZ-E300 Pin No. Pin name I/O Description 46 CL V_W_CON O Spindle servo (W) driv e signal output to SC111257FCR2 (IC551) 47 SLED_1R_CON O Sled motor control signal output to SC111257FCR2 (IC551) 48 SLED_1F_CON O Sled motor control signal output to SC111257FCR2 (IC551) 49 SLED_2R_CON O Sled motor control signal output to SC111257FCR2 (IC551) 50[...]

18 18 MZ-E300 5-2. BLOCK DIA GRAMS • Signal path. F : Analog J : Digital 12 2 RFVC MON HFL 5 2 CLK INM2 INM1 RF2 RF1 VRMC XWK3 VSTB XWK1 XWK4 VD XRST 10 44 VLO 19 VG 18 LG 9 VL 11 VL 16 12 L2 L2 50 VB 28 L1 32 L1 33 VC OUT 7 26 27 22 23 56 4 6 XWK2 3 SLEEP 55 FFCLR 54 46 VC 36 VC 34 VC2 45 21 1 20 13 4 24 23 BEEP STB MUTE BEEP OUT A BEEP OUT B OU[...]

19 19 MZ-E300 5-3. PRINTED WIRING BO ARDS – MAIN SECTION (1/2) – z Refer to page 24 f or Notes. 2 3 4 5 6 7 8 9 A 1 B C D E F MAIN BOARD (SIDE B) 11 (11) 1-679-460- C910 R905 C906 R910 R810 R820 C555 C951 D903 C907 C553 C554 C551 C552 L553 L554 L552 L551 1 5 10 14 15 20 25 28 29 30 35 40 42 43 45 C810 C801 C511 C509 C508 C504 C503 C505 C302 R30[...]

20 20 MZ-E300 5-4. PRINTED WIRING BO ARDS – MAIN SECTION (2/2) – z Refer to page 24 f or Notes. S809 HOLD . 2 3 4 5 6 7 8 A 1 B C D E F L904 S804 S805 VOL– S806 PLAY MODE DISPLAY(2SEC) S807 DIGITAL MEGABASS AVLS(2SEC) L901 L902 L502 L905 L903 R901 R906 R936 R814 R947 R903 R946 R815 R816 R948 C913 C915 C953 C921 C917 R826 R516 R827 R603 R106 R[...]

21 21 MZ-E300 5-5. SCHEMA TIC DIA GRAM – MAIN SECTION (1/3) – z Refer to page 24 f or Notes. z Refer to page 26 – 28 for IC Bloc k Diagrams. z Refer to page 25 f or W aveforms. IC B/D[...]

22 22 MZ-E300 5-6. SCHEMA TIC DIA GRAM – MAIN SECTION (2/3) – z Refer to page 24 f or Notes. z Refer to page 26 – 28 for IC Bloc k Diagrams. z Refer to page 25 f or W aveforms. IC B/D IC B/D[...]

23 23 MZ-E300 5-7. SCHEMA TIC DIA GRAM – MAIN SECTION (3/3) – z Refer to pa g e 24 f or Notes. z Refer to page 26 – 28 for IC Bloc k Diagrams. z Refer to page 25 f or Wavef orms. IC B/D[...]

24 24 MZ-E300 Note on Schematic Dia gram: MAIN SECTION • 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. • f : internal component. Note: The components identified by mark 0 or dotted[...]

25 MZ-E300 Approx. 396 mVp-p Approx. 540 mVp-p Approx. 1.1 Vp-p Approx. 416 mVp-p 1.1 Vp-p 16.34MHZ 3 Vp-p 5.3 µ s 2.8 Vp-p 11.1 ms 2.8 Vp-p 11.8 ms • W avef orms 1 IC501 1 (TE), IC601 w; (TE) (PLA Y Mode) 200 mV/DIV , 1 µ s/DIV 2 IC501 8 , 9 , 0 , qa (IY , IX, JX,JY) (PLA Y Mode) 200 mV/DIV , 500 ns/DIV 3 IC501 ed (RF), IC601 9 (EFMIN) (PLA Y [...]

26 MZ-E300 • IC BLOCK DIA GRAMS IC301 T A2131FL-EL V REF MT SW BST SW BEEP 19 20 21 22 23 24 18 17 16 15 14 13 PW SW 12 11 10 8 7 BST1 9 BST2 6 5 4 3 2 1 BST AGC PW B PW A ADD TC MT VCC INR INL BEEP OUTB BEEP OUTA +B OUTL PWR GND OUTR DET AGC IN BST OUT BST NF2 LPF2 BST NF1 LPF1 VREF VREF IN GND BEEP IN BST SW MUTE STB IC501 SN761057DBT 1 TE REXT[...]

27 MZ-E300 IC551 SC111257FCR2 56 55 42 41 40 CPUO W1 V1 U1 PWM OE 7 VM1 RO1 8 FO1 9 10 VM12 PGND1 11 RO2 12 PGND2 13 FO2 CPAIP CPAIM CPBIP CPBIM CPAO CPB0 VM3 RO3 FO3 VM34 PGND3 RO4 PGND4 FO4 14 15 16 17 18 19 20 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 1 2 3 4 5 6 54 53 52 51 50 49 48 47 46 45 44 43 VM4 R14 F14 R13 F13 VG VC GND1 P[...]

28 MZ-E300 IC901 XPC18A32FCR2 56 55 42 41 40 VLON XWK1 XWK2 XWK3 XWK4 VSTV 7 VRMC GND 8 VL VLO 9 10 VL 11 L2 12 PGND2 13 PGND2 VIF VA VAFB VDFB VIFFB GND VC VCO VCOUT L1 VC NC PGND1 PGND1 14 15 16 17 18 19 20 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 1 2 3 4 5 6 54 53 52 51 50 49 48 47 46 45 44 43 L1 RF1 INM1 DTC1 DTC2 RF2 INM2 PWM1 [...]

29 MZ-E300 The components identified by mark 0 or dotted line with mark 0 are critical for safety . Replace only with part number specified. SECTION 6 EXPLODED VIEWS NO TE : • -XX, -X mean standardized parts, so they may have some difference from the original one. • Color indication of Appearance Parts Example : KNOB, BALANCE (WHITE) ••• [...]

30 MZ-E300 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 51 1-679-187-11 MOTOR FLEXIBLE BOARD 52 3-222-392-01 SCREW (M1.4), T APPING 53 3-223-833-01 CHASSIS 54 3-224-779-01 SPRING, THRUST DETENT 55 4-222-216-01 GEAR (SA) 56 3-338-645-51 WASHER 57 4-218-233-13 SCREW (1.7), MI 58 4-218-233-01 SCREW (1.4), MI 59 4-222-208-0[...]

31 MZ-E300 NO TE : • Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. • -XX, -X mean standardized parts, so they may have some difference from the original one. • RESISTORS All resistors are in ohms MET AL : Metal-film resistor MET AL OXIDE :Met[...]

32 MZ-E300 C903 1-104-752-11 T ANT AL. CHIP 33uF 20% 6.3V C904 1-119-749-11 T ANT AL. CHIP 33uF 20% 4V C905 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C906 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C907 1-109-982-11 CERAMIC CHIP 1uF 10% 10V C908 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C909 1-109-982-11 CERAMIC CHIP 1uF 10% 10V C910 1-162-964-11 CERAMIC[...]

33 MZ-E300 R822 1-216-821-11 MET AL CHIP 1K 5% 1/16W R824 1-216-845-11 MET AL CHIP 100K 5% 1/16W R826 1-216-864-91 SHORT 0 R827 1-216-857-11 MET AL CHIP 1M 5% 1/16W R830 1-216-833-11 MET AL CHIP 10K 5% 1/16W R901 1-218-871-11 MET AL CHIP 10K 0.5% 1/16W R903 1-216-825-11 MET AL CHIP 2.2K 5% 1/16W R905 1-216-825-11 MET AL CHIP 2.2K 5% 1/16W R906 1-21[...]

REVISION HIST OR Y Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. V er . Date Description of Revision 1.2 2001.12 Change of microprocessor (IC801 : V er 1.3). (SPM-01052) 1.1 2001.03 Correction of Overall Adjustment Mode. Cor[...]