Benutzeranleitung / Produktwartung MZ-N505 des Produzenten Sony
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SERVICE MANUAL POR T ABLE MINIDISC RECORDER US Model Canadian Model AEP Model UK Model SPECIFICA TIONS MZ-N505 US and f oreign patents licensed from Dolby Laboratories. – Continued on ne xt page – Model Name Using Similar Mechanism MZ-N707 Mechanism T ype MT -MZN707-177 Optical Pick-up Name LCX-5R V er 1.
2 MZ-N505 General P ower requirements Sony A C Power Adaptor (suppl ie d) con nect ed at the DC IN 3 V jack (country model in parentheses) : 120 V AC, 60 Hz (USA, Canada) 230 V A C, 50 /60 Hz ( Contin.
3 MZ-N505 T ABLE OF CONTENTS 1. SER VICING NO TES ............................................... 4 2. GENERAL ................................................................... 5 3. DISASSEMBL Y 3-1. Disassembly Flow ................................
4 MZ-N505 NO TES ON HANDLING THE OPTICAL PICK-UP BLOCK OR B ASE UNIT 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. on clothing and the human body .
5 MZ-N505 SECTION 2 GENERAL This section is e xtracted from instruction manual. 10 Lookingat the contr ols The recorder A OPEN button B END SEARCH button C X (pause ) button D DC IN 3V jack E V OL +/– b utton The VOL + button has a tacti le dot . F N (play) button The N button has a tact ile dot.
6 MZ-N505 SECTION 3 DISASSEMBL Y • This set can be disassembled in the order sho wn below . 3-1. DISASSEMBL Y FLO W 3-2. CASE (LOWER) (P age 7) 3-3. CASE (UPPER) SECTION (P age 7) 3-4. LCD MODULE, CASE (UPPER) SUB ASSY (P age 8) 3-5. MECHANISM DECK (MT -MZN707-177) (P age 8) 3-6.
7 MZ-N505 Note: Follo w the disassembly procedure in the numerical order given. 3-2. CASE (LO WER) 3-3. CASE (UPPER) SECTION 1 two screws (M1.4) 1 two screws (M1.4) 2 Remov e the case (lower) in the direction of the arrow . 6 case (upper) section 1 flexib le board (CN801) 3 two screws (M1.
8 MZ-N505 3-4. LCD MODULE, CASE (UPPER) SUB ASSY 1 four scre ws (1.7 × 2.5) 3 button (control) 4 case (upper) sub assy knob (hold) 2 LCD module switch Note: On installation, adjust the position of both switch and knob (hold).
9 MZ-N505 3-6. SET CHASSIS (5188) ASSY 3-7. MAIN BO ARD 2 two screws (1.7 × 2.5) 3 set chassis (5188) ass y 1 four scre ws (M1.4 × 2) 3 battery case 4 main board 2 battery ter minal (–) 1 battery .
10 MZ-N505 3-8. OP SER VICE ASSY (LCX-5R) 4 rack spring 3 screw (M1.4) 1 washer (0.8-2.5) 2 gear (SA) 5 screw (M1.4) 6 thrust detent spring 8 Pull off lead screw. 7 over write head section OP service assy (LCX-5R) 9 Opening the over write head toward the direction A , remove the OP service assy (LCX-5R) toward the direction B .
11 MZ-N505 3-9. HOLDER ASSY 3-10. DC MO T OR (SLED) (M602) 4 holder ass y 3 boss 3 boss 1 convex portion 2 Open the holder assy 2 washer (0.8-2.5) 5 DC motor (sled) (M602) 4 two screws (M1.4) 3 gear (SA) 1 Remove six solders of the motor flexible board.
12 MZ-N505 3-11. DC SSM18B MO T OR (SPINDLE) (M601), DC MO T OR (O VER WRITE HEAD UP/DO WN) (M603) 9 DC SSM18B motor (spindle) (M601) 8 three tapping screws 2 tapping screw 3 motor cover 6 gear (HA) 4 gear (HB) 5 gear (HC) DC motor (over write head up/down) (M603) 3.
13 MZ-N505 OPERA TION IN SETTING THE TEST MODE • When the test mode becomes activ e, first the display check mode is selected. • Other mode can be selected from the display check mode. • When the test mode is set, the LCD repeats the following dis- play .
14 MZ-N505 CONFIGURA TION OF TEST MODE MANU AL MODE Mode to adjust or check the operation of the set by function. Normally , the adjustment in this mode is not executed. Ho wev er, the Manual mode is used to clear the memor y , power supply adjustment, and laser po wer check before performing automatic adjustments in the Ov erall Adjustment mode.
15 MZ-N505 5 . The display changes a shown belo w each time the [MENU/ENTER] key . Howe ver in the po wer mode (item number 700 ’ s), only the item is displayed. 6. Quit the manual mode, and press the x ke y to return to the test mode (display check mode).
16 MZ-N505 • Description of Indication History Histor y code number Description 1 The first error N The last error N1 One error before the last. N2 T wo errors before the last. R_ T otal recording time RESET THE ERROR DISPLA Y CODE After servicing, reset the error display code.
17 MZ-N505 SOUND SKIP CHECK RESUL T DISPLA Y MODE This set can display the count of errors that occurred during the recording/playing for checking. • Setting Method of Sound Skip Check Result Displa y Mode 1.
18 MZ-N505 4. When all the ke ys on the set and on the remote commander are considered as OK, the follo wing displays are shown for 4 sec- onds. Example1: W hen the keys on the set are considered as OK: Example2: W hen the keys on the remote commander are con- sidered as OK: 5.
19 MZ-N505 SECTION 5 ELECTRICAL ADJUSTMENTS OUTLINE • In this set, automatic adjustment of CD and MO can be per- formed by entering the test mode. Howe ver , before starting automatic adjustment, the memory clear , po wer supply adjustment, and laser po wer check m ust be performed in the manual mode.
20 MZ-N505 • Change of NV Adjusted V alues (ver sion 1.100) Caution: Change the NV adjustment v alues according to the mi- crocomputer version. In this set, some adjusted values w ere set in the manual mode at the shipment, b ut these will be cleared when the NV is reset.
21 MZ-N505 23) Adjust with the [VOL +] key (adjusted v alue up) or [VOL - - ] key (adjusted v alue down) so tha t the adjusted v alue becomes 5B. 24) Press the X key to write the adjusted v alue. 25) Select manual mode of the test mode, and set item number 777 (see page 14).
22 MZ-N505 PO WER SUPPL Y MANU AL ADJUSTMENT • Adjustment Sequence Adjustment must be done with the follo wing steps. 1. Vc PWM Duty (L) adjustment (item number: 762) r 2. Vc PWM Duty (H) adjustment (item number: 763) r 3. Vl PWM Duty (L) adjustment (item number: 764) r 4.
23 MZ-N505 2. Press the X ke y to write the adjusted value. Adjustment and Connection Location: MAIN board (See page 25) • Adjustment Method of Vl PWM Duty (L) (item number: 764) 1.
24 MZ-N505 011 ###S** Set LCD displa y ### : Address ** : Adjusted value 012 ###S** Set LCD display ### : Address ** : Adjusted value 013 ###S** Set LCD display ### : Address ** : Adjusted value LASER PO WER CHECK • Connection • Checking Method 1.
25 MZ-N505 C914 C513 C527 C514 C523 C910 C909 C915 C917 R946 C912 R920 R615 R906 R626 R604 R605 C506 C507 R505 R517 C504 C530 R916 R921 R948 R908 R907 C924 C928 R927 C515 C516 R911 R624 859 C824 C805 .
26 MZ-N505 O VERALL ADJUSTMENT MODE • Configuration of Overall Adjustment Mode • Overall adjustment mode (title display) : (Disc mark) At end of power supply adjustment: Outside lit At end of electrical offset adj.
27 MZ-N505 • CD and MO Overall Adjustment Items 1. CD overall adjustment items Item No. Description 312 313 CD electrical offset adjustment 314 321 CD tracking error gain adjustment 328 CD TWPP gain.
28 MZ-N505 RESUME CLEAR Perform the Resume clear when all adjustments completed. • Resume Clear Setting Method 1. Select the manual mode of the test mode, and set item number 043 (see page 14). 2. Press the X key . 3. Press the x key to return to the test mode (display check mode).
29 MZ-N505 REWRITING THE P A TCH D A T A A T REPLACEMENT OF MAIN BO ARD OR NONV OLA TILE MEMOR Y (IC804) This set requires the patch data in the non volatile memory (IC804) to be re written using the application, when the MAIN board o r non volatile memory (IC804) was r e placed.
30 MZ-N505 5. Confirm that the model and version indicated on the title bar coincide with the codes displayed in the De vice Name block and the V ersion block in the window .
MZ-N505 31 31 8. Click the [Usb Disconnect] button. 9. Confirm that the windo w becomes as shown belo w where the [Write + V erify] button and [Read] button are inacti ve.
MZ-N505 32 32 SECTION 6 DIA GRAMS 6-1. BLOCK DIA GRAM – SER V O/USB Section – 33 29 28 41 42 1 44 21 31 25 43 24 23 4 8 9 10 11 12 14 5 6 13 7 18 19 JX JY JX IX IY IY IX JX JY A B C D MON IX A B C.
MZ-N505 33 33 6-2. BLOCK DIA GRAM – A UDIO Section – VC B+ F801 F RMC KEY RVDD DTCK KEY -R RGND (LINE IN JACK) OPTICAL RECEIVER J302 i J301 LINE IN (OPTICAL) • SIGNAL PATH : PLAYBACK : REC (ANAL.
MZ-N505 34 34 6-3. BLOCK DIA GRAM – DISPLA Y/KEY CONTR OL/POWER SUPPL Y Section – 7 4 56 52 54 55 1 2 3 5 116 211 64 89 88 85 113 114 115 10 49 24 25 39 44 38 42 40 41 35 22 23 26 46 47 50 28 32 3.
MZ-N505 35 35 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.
MZ-N505 36 36 6-5. PRINTED WIRING BO ARD – MAIN Board (Component Side) – :Uses unleaded solder . • Semiconductor Location Ref. No. Location D601 I-7 D603 I-5 D607 I-3 D803 G-3 D804 H-2 D904 H-5 .
MZ-N505 37 37 D101 G-4 D201 H-3 D301 G-2 D602 I-4 D606 H-10 D608 I-10 D701 D-4 D703 D-5 D901 H-5 D902 G-4 D903 H-5 IC301 E-5 IC302 G-3 IC501 F-6 IC601 H-9 IC702 D-5 IC801 F-9 IC901 H-5 IC902 G-4 Q301 G-4 Q602 H-7 Q604 I-10 Q605 I-10 Q701 D-4 Q703 D-4 Q704 D-5 Q705 E-6 Q706 D-5 Q801 G-9 Q901 G-5 Q902 G-5 Q903 G-4 Q904 H-6 6-6.
MZ-N505 38 38 (Page 40) (Page 39) 6-7. SCHEMA TIC DIA GRAM – MAIN Boar d (1/4) – • See page 42 for Wavef orms. • See page 43 f or IC Block Diagrams. (Page 41) The components identified by mark 0 or dotted line with mark 0 are critical for saf ety .
MZ-N505 39 39 6-8. SCHEMA TIC DIA GRAM – MAIN Boar d (2/4) – • See page 42 for W aveform. • See page 43 for IC Bloc k Diagrams. (Page 38) (Page 40) R905 C922 C906 C921 C908 C905 R903 R902 R941.
MZ-N505 40 40 L802 R 8 4 4 R 8 4 6 R 8 4 5 C841 C820 C819 C840 C801 C834 D804 R839 R815 R816 R831 FB802 FB803 FB804 FB806 C833 C 8 3 2 X 8 0 2 S L 8 0 1 C806 C821 C822 C808 C809 C 8 2 8 C 8 2 9 C 8 1 .
MZ-N505 41 41 C203 C202 C103 C102 C826 L301 C306 C305 R304 R305 C308 R211 R111 R212 R112 C211 C111 C340 C321 R302 C330 R307 R317 R830 IC804 R849 R850 R851 FB805 R810 R863 R855 R853 R309 C312 C334 C206.
MZ-N505 42 42 100 mVp-p 1 Vp-p • W avef orms 1 IC501 1 (TE) 200 mVp-p 4 IC501 rs (FE) 6 IC601 4 (CLK) 1 Vp-p 5.67 ns 720 mVp-p 10 µ s 5 IC702 5 (EXT) (USB mode) 7 IC901 th (CLK) 8 IC801 <zc, (UOSCO) (USB mode) 1.9 Vp-p 20.8 ns 1 Vp-p 5.67 ns 9 IC801 <zbz (OSCO) 3 Vp-p 22.
43 MZ-N505 • IC Block Dia grams IC301 AK5354VT -E2 8 7 6 5 ADC CONTROL REGISTER I/F AUDIO I/F CONTROLLER HPF CLOCK DIVIDER VD VA AGND VCOM 1 2 3 4 LIN1 LIN2 RIN1 RIN2 16 PDN 15 CSN 14 CCLK 13 CDTI 1.
44 MZ-N505 IC501 SN761057A 1 TE REXT Wpp LPF VREF C D D-C Iy Ix Jx Jy A A-C B ADIP-IN FE ABCD OFC-C1 OFC-C2 PS LP EQ AGND RF CCSL2 VC RESET SCK SBUS VREF075 PEAK BOTM DGND OFTRK S-MON TON-C CIG CDN AD.
45 MZ-N505 IC551 SC111258FCR2 VC VG VC 43 48 47 44 45 46 49 50 51 52 53 54 55 56 1 2 3 4 5 42 41 39 37 38 40 6 35 34 33 36 31 30 29 32 8 9 10 7 12 13 14 15 11 26 27 28 24 23 22 21 20 25 17 16 18 19 UI.
46 MZ-N505 IC601 XPC18A22AFCR2 IC702 XC6367A361MR 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 54 55 56 1 53 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 24 23 25 .
47 MZ-N505 IC901 XPC18A32FCR2 42 41 40 39 38 36 35 34 33 32 31 30 29 37 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 56 55 54 53 52 51 50 49 48 47 46 45 44 43 + – + –.
48 MZ-N505 6-11. IC PIN FUNCTION DESCRIPTION • IC501 SN761057A (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. Pin Name I/O Description 1 TE O Tracking error signal output to the system controller 2 REXT.
49 MZ-N505 • IC801 CXD2677-202GA (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM) Pin No. Pin Name I/O Description 1 NC O Load address strobe signal output terminal for D-RAM Not used 2 .
50 MZ-N505 Pin No. Pin Name I/O Description 56 KDI I Data input terminal Not used 57 TRST I Input terminal for the test mode set (normally fixed at “ L ” ) 58 XOPT CTL O Power supply ON/OFF contro.
51 MZ-N505 Pin No. Pin Name I/O Description 103 XMUTE O Analog muting control signal output terminal “ L ” : muting ON Not used 104 XRST I System reset signal input from the power control “ L .
52 MZ-N505 Pin No. Pin Name I/O Description 152 VSIOSC — Ground terminal (for the OSC cell) 153 DAVDD — Power supply terminal (for the built-in D/A converter) (+2.
53 MZ-N505 Pin No. Pin Name I/O Description 199 NC I Ground terminal Clock signal input from the external VCO Not used 200 DVSS3 — Ground terminal (for the DSP block) 201 DVDD3 — Power supply terminal (for the DSP block) (+1.5V) 202 ADFG I ADIP duplex FM signal (20.
54 MZ-N505 Pin No. Pin Name I/O Description 246 EVA I EVA/FLASH chip discrimination input terminal “ L ” : FLASH chip, “ H ” : EVA chip (fixed at “ L ” in this set) 247 FLASHVDD — Power supply terminal (for the built-in flash memory) (+2.
55 MZ-N505 7-1. CASE SECTION SECTION 7 EXPLODED VIEWS • Items marked “*” are not stocked since they 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.
56 MZ-N505 7-2. CHASSIS SECTION Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 51 3-237-072-01 SCREW (MD), STEP 52 3-238-127-01 SPACER (HOLDER) 53 X-3381-385-1 CHASSIS (5188) ASSY , SET 54 3-237-083-01 SPRING (POP UP-R), TORSION 55 3-237-075-01 SPRING (POP UP-L), TORSION 57 3-318-382-91 SCREW (1.
57 MZ-N505 7-3. MAIN BO ARD SECTION Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 101 3-237-079-01 CASE, BA TTERY (for BLUE, GOLD, SIL VER) 101 3-237-079-11 CASE, BA TTERY .
58 MZ-N505 7-4. MECHANISM DECK SECTION-1 (MT -MZN707-177) The components identified by mark 0 or dotted line with mark 0 are critical for safety . Replace only with part num- ber specified. Les composants identifiés par une marque 0 sont critiques pour la sécurité.
59 MZ-N505 7-5. MECHANISM DECK SECTION-2 (MT -MZN707-177) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 351 3-225-278-11 SCREW , T APPING 352 3-235-838-01 COVER, MOTOR 353 .
60 MZ-N505 SECTION 8 ELECTRICAL P ARTS LIST MAIN 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 61 MZ-N505 C604 1-164-943-11 CERAMIC CHIP 0.01uF 10% 16V C605 1-164-937-11 CERAMIC CHIP 0.001uF 10% 50V C606 1-164-874-11 CERAMIC CHIP 100PF 5% 50V C607 1-164-874-11 CERAMIC CHIP 100PF 5% 50V C608 1-125-777-11 CERAMIC CHIP 0.
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 62 MZ-N505 MAIN @ Replacement of CXD2677-202GA (IC801) used in this set requires a special tool.
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 63 MZ-N505 R315 1-218-965-11 RES-CHIP 10K 5% 1/16W R316 1-218-977-11 RES-CHIP 100K 5% 1/16W R317 1-218-941-11 RES-CHIP 100 5% .
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 64 MZ-N505 R908 1-218-977-11 RES-CHIP 100K 5% 1/16W R909 1-218-965-11 RES-CHIP 10K 5% 1/16W R910 1-218-965-11 RES-CHIP 10K 5% 1/16W R911 1-218-949-11 RES-CHIP 470 5% 1/16W R914 1-218-941-11 RES-CHIP 100 5% 1/16W R915 1-208-691-11 MET AL CHIP 2.
MZ-N505 65 MEMO.
MZ-N505 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 revised page.
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