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Sony R501PC manual

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Table of contents for the manual

  • Page 1

    1 MZ-R501/R501PC SERVICE MANUAL Model Name Using Similar Mechanism MZ-R500 Mechanism T ype MT -MZR500-172 Optical Pick-up Name LCX-4R System Audio playing system MiniDisc digital audio system Laser diode properties Material: GaAlAs Wa v elength: λ = 790 nm Emission duration: continuous Laser output: less than 44.6 µ W (This output is the value me[...]

  • Page 2

    2 Flexible Cir cuit Board Repairing • Keep the temperature of the soldering iron around 270°C during 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 • Never reuse a di[...]

  • Page 3

    3 1. SERVICING NOTE ......................................................... 4 2. GENERAL Looking at the Controls ...................................................... 5 3. DISASSEMBL Y 3-1. Case (Lo wer) Assy .............................................................. 6 3-2. Case (Upper) Assy ..................................................[...]

  • Page 4

    4 MZ-R501/R501PC SECTION 1 SERVICING NOTE NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electro- static break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body . During repair , pay attention to electrostatic br[...]

  • Page 5

    5 MZ-R501/R501PC SECTION 2 GENERAL This section is extracted from instruction manual. Looking at the contr o ls S e e p a ge s in ( ) for more de t ails. The recor der A N bu tt o n (1 1) (13 ) (17) (2 5) B VOL + / – bu tt o n s (13) (2 6) C x butt on (11) (13) (27) D X bu tton (11) (13 ) ( 20 ) (26) (29) E HO L D s w itch (a t t he re a r) (9) ([...]

  • Page 6

    6 MZ-R501/R501PC 3-1. CASE (LOWER) ASSY (P age 6) 3-2. CASE (UPPER) ASSY (P age 6) 3-4. MAIN BOARD (P age 7) 3-5. MD MECHANISM DECK (P age 8) 3-6. SER VICE ASSY , OP (P age 8) 3-7. HOLDER ASSY (P age 9) SET 3-10. DC MO TOR (M601) (P age 10) 3-3. LCD MODULE (P age 7) 3-9. DC MO TOR (M602) (P age 10) 3-8. MO T OR FLEXIBLE BOARD (P age 9) DC MO TOR (M[...]

  • Page 7

    7 MZ-R501/R501PC 3-3. LCD MODULE 3-4. MAIN BOARD 1 screws (1.7x3), tapping 4 LCD module claws case (upper) ass y 2 screws (1.7x3), tapping 3 3 screws (M1.4x2), toothed lock 4 screws (M1.4x2), toothed lock 7 2 Remov e the solders 0 Remov e the solder 6 claw qs Remov e the solder qa terminal (+), batter y qd terminal (-), batter y 1 CN701 9 MAIN boar[...]

  • Page 8

    8 MZ-R501/R501PC 3-5. MD MECHANISM DECK 3-6. SER VICE ASSY , OP 1 screws (1.7), MI 2 chassis assy , se t boss 3 MD mechanism deck 4 spring (S), rack 6 spring, thrust detent 3 precision pan screw (M1.4) 5 precision pan screw (M1.4) 1 washer (0.8 - 2.5) 2 gear (SA) 8 Pull off the lead screw . 7 B A 9 Opening the ov er write head toward the direction [...]

  • Page 9

    9 MZ-R501/R501PC 3-7. HOLDER ASSY 3-8. MOTOR FLEXIBLE BOARD 4 Remov e the holder assy to direction of the arrow B . 1 Open the holder assy . A 2 B 3 boss 2 Remov e two solders of DC motor (ov er write head up/down) (M603). 1 Remov e four solders of DC motor (sled) (M602). 3 Remov e four solders of DC motor (spindle) (M601). 5 motor flexib le board [...]

  • Page 10

    10 MZ-R501/R501PC 3-9. DC MOT OR (M602) 3-10. DC MOTOR (M601), DC MOT OR (M603) 4 two precision pan screws (M1.4) 5 DC motor (sled) (M602) 1 Remov e four solders of motor flexib le board. 2 washer (0.8 - 2.5) 3 gear (SA) 1 Remov e six solders of motor flexib le board. 4 three precision pan screws (M1.4) qs DC motor (ov er write head up/down) (M603)[...]

  • Page 11

    11 MZ-R501/R501PC 2 In the normal mode, turn on the [HOLD] switch. While press- ing the [VOL - -] key press the following order: > t > t . t . t > t . t > t . t X t X SECTION 4 TEST MODE 4-3. Operation in Setting the T est Mode • When the test mode becomes active, first the display check mode is selected. • Other mode can be selecte[...]

  • Page 12

    12 MZ-R501/R501PC 4-5. Configuration of T est Mode 4-6. Manual Mode Mode to adjust or check the operation of the set by function. Normally , the adjustment in this mode is not executed. However , the Manual mode is used to clear the memory , power supply adjustment, and laser power check before performing automatic adjustments in the Overall Adjust[...]

  • Page 13

    13 MZ-R501/R501PC 4-8. Self-Diagnosis Result Display Mode This set uses the self-diagnostic function system in which if an error occurred during the recording or playing, the mechanism control block and the power supply control block in the microcomputer detect it and record its cause as history in the nonvolatile memory . By checking this history [...]

  • Page 14

    14 MZ-R501/R501PC • Description of Indication History History 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 4-9. Reset the error display code After servicing, reset the error display code. • Setting method of Reset the Error Display Code 1. Setti[...]

  • Page 15

    15 MZ-R501/R501PC 4-1 1. Key Check Mode This set can check if the set function normally . • Setting Method of Key Check Mode 1. Setting the test mode (see page 11). 2 . Press the [T.MARK] + X ke ys activ ates the key check mode. (At the last two digits, AD v alue of remote commander key line is displayed in hexadecimal) 3. When each key on the se[...]

  • Page 16

    16 MZ-R501/R501PC 4. When all the keys on the set and on the remote commander are considered as OK, the following displays are shown for 4 sec- onds. Example1: When the keys on the set are considered as OK: 5. When all keys were checked or if the upper panel is opened, the key check mode quits and the test mode (display check mode) comes back. This[...]

  • Page 17

    17 MZ-R501/R501PC • Setting method of NV reset 1. Select the manual mode of the test mode, and set item number 021NV Reset (see page 12). 2. Press the X key . 3. Press the X key once more. 4. Press the x key to quit the manual mode, and activate the test mode (display check mode). • Change of Adjusted V alues 1. Item numbers in which the adjust[...]

  • Page 18

    18 MZ-R501/R501PC • Setting method of power supply manual adjustment 1. Make sure that the power supply voltage is 3V . 2. Set the test mode (see page 11). 3. Press the . or [VOL- -] key to activate the overall adjustment mode. 4 . Press the [END SEARCH] ke y . (the [END SEARCH] key causes the item number to be switched to 762.) • Adjustment me[...]

  • Page 19

    19 MZ-R501/R501PC 3. Adjust with [VOL +] , [VOL - -] key so that the adjusted value (hexadecimal value) becomes the ambient temperature. (Initial value: 14h = 20 ° C, Adjusting range: 80h to 7fh ( – 128 ° C to +127 ° C) 4. Press the X key to write the adjusted value. 5-7. Laser Power Check Connection : Checking Method : 1. Select the manual mo[...]

  • Page 20

    20 MZ-R501/R501PC 8. Press the N key , and set the laser CD read adjustment mode (item number 012). 9. Press the [ENTER] key and set the address & adjusted value display (see page 13). 10. Check that the laser power meter reading is 0.97 ± 0.10 mW . 11. Check that the voltage both ends (TP (+) and TP ( – )) of resis- tor R501 at this time is[...]

  • Page 21

    21 MZ-R501/R501PC 8. If OK through the overall MO adjustments, press the x key to return to the test mode and terminate the Overall Adjustment mode. 6. Insert MO disc in the set, and press the > key to set the Overall MO Adjustment mode. Automatic adjustments are made. 7. In case of MO overall adjustment NG, reset the NV (see page 17), then read[...]

  • Page 22

    22 MZ-R501/R501PC • Overall CD and MO adjustment items 1. Overall CD adjustment items Item No. Description 312 313 CD electrical offset adjustment 314 321 CD tracking error gain adjustment 328 CD TWPP gain adjustment 324 CD tracking error of fset adjustment 332 336 CD ABCD gain adjustment 344 CD focus gain adjustment 345 CD tracking gain adjustme[...]

  • Page 23

    23 MZ-R501/R501PC 2. Adjust with the [VOL+] key (adjusted value up) or [VOL- -] key (adjusted value down) so that the adjusted value becomes S67. 3. Press the X key . 4. Set item number 868 (see page 12). 5. Adjust with the [VOL+] key (adjusted value up) or [VOL- -] key (adjusted value down) so that the adjusted value becomes S01. 6. Press the X ke[...]

  • Page 24

    24 MZ-R501/R501PC SECTION 6 DIAGRAMS 6-1. IC PIN FUNCTION DESCRIPTION • IC501 SN761057DBT (RF AMP , FOCUS/TRA CKING ERROR AMP) Pin No. Pin Name I/O Description 1T EO Tr acking error signal output to the system controller (IC801) 2 REXT — Connect terminal to the external resistor for ADIP amp control 3 WPPLPF — Connect terminal to the external[...]

  • Page 25

    25 MZ-R501/R501PC • IC801 CXD2671-204GA (SYSTEM CONTROLLER, DIGIT AL SIGNAL PROCESSOR, 16M BIT D-RAM) Pin No. Pin Name I/O Description 1P A USE KEY I Set key input terminal ( X key input) 2 (MIC SENSE) O Control signal output to the microphone amp “H”: HIGH, “L”: LO W , normally: “H” Not used (open) 3 XTEST I Input terminal for the te[...]

  • Page 26

    26 MZ-R501/R501PC Pin No . Pin Name I/O Descr iption 52 A VD2 — Po wer supply terminal (for the analog) (+2.4 V) 53 A VS2 — Ground terminal (for the analog) 54 ADRB I A/D converter the lower limit voltage input (fixed at “L” in this set) 55 SE I Sled error signal input terminal Not used (fixed at “L”) 56 TE I Trac king error signal inpu[...]

  • Page 27

    27 MZ-R501/R501PC Pin No. Pin Name I/O Description 99 SLDW O Sled motor dri ve signal output (W) to the motor dri ver (IC701)/driv e control signal output (2+) 100 SLCU I Spindle motor driv e comparison signal input (U) from the motor driv er (IC701) 101 SLCV I Spindle motor driv e comparison signal input (V) from the motor driv er (IC701) 102 SLCW[...]

  • Page 28

    28 MZ-R501/R501PC Pin No. Pin Name I/O Description 169 CLK SEL O System clock select signal output to the power control (IC901) 170 OPEN CLOSE SW I Open/close detection switch (S806) of the upper panel input terminal (A/D input) “L”: when upper panel close 171 GND SW O Control signal output to the ground (GND) changeov er switch 172 SET CODE0 O[...]

  • Page 29

    MZ-R501/R501PC 29 29 Pin No. Pin Name I/O Descr iption 223 SPDL MON I Spindle servo monitor signal input 224 to 226 (XA VLS), (SOUND 1, 2) I Not used (open) 227 XHOLD SW I HOLD switch (SW801) input terminal “L”: hold ON, “H”: hold OFF 228 (SYCN REC) I SYNCHRO REC switch input terminal “L”: OFF , “H”: ON Not used (open) 229 (SYNC LEV[...]

  • Page 30

    MZ-R501/R501PC 30 30 33 24 81 35 25 80 TRACKING COIL DRIVE 10 19 82 8 18 83 FOCUS COIL DRIVE 14 17 42 16 233 98 SLED VOLTAGE MONITER SPINDLE SERVO DRIVE SWITCH IC805 41 12 20 97 29 26 99 MAIN BOARD (1/3) MOTOR FLEXIBLE BOARD AUTOMATIC POWER CONTROL Q501 2 19 11 12 5 8 18 14 9 10 15 16 17 7 6 1 3 4 1 2 JX JY JX IX IY Iy HR601 OVER WRITE HEAD MD MECH[...]

  • Page 31

    MZ-R501/R501PC 31 31 9 1 3 2 71 AUDIO I/F CONTROLLER AUDIO I/F CONTROLLER CLOCK DIVIDER OPT CONTROL SWITCH Q302 A/D CONVERTER & HPF IP GAIN AMP 29 30 215 192 191 218 240 142 22 21 15 2 4 24 23 13 11 69 2 3 4 1 219 24 25 70 17 18 MUTING BEEP STANDBY REFERENCE VOLTAGE SWITCHING Q301 10 179 180 181 SYSTEM CONTROL /POWER SECTION RMC KEY 4 SYSTEM CO[...]

  • Page 32

    MZ-R501/R501PC 32 32 187 206 205 1 13 14 227 170 230 3 48 10 20 86 10 25 169 236 235 234 17 18 19 S805 (HALF LOCK) 15 21 141 164 165 8 11 39 36 12 34 32 50 33 4 7 56 54 52 55 1 3 2 5 53 14 13 10 11 4 5 12 7 8 6 3 1 2 9 MAIN BOARD (3/3) SYSTEM CONTROL/POWER SECTION SDO0 SCK0 AUDIO SECTION 3 RMC KEY AUDIO SECTION 4 CLK VREF SERVO SECTION 2 RESET SWIT[...]

  • Page 33

    MZ-R501/R501PC 33 33 Common note on Printed Wiring Board: • Y : par ts extr acted from the conductor side. • : Pattern from the side which enables seeing. (The other lay er’ s patter ns are not indicated.) surface Lead layout of conventional IC CSP (chip size package) Caution: P atter n face side: P ar ts on the pattern face side seen from th[...]

  • Page 34

    MZ-R501/R501PC 34 34 1 A B C D E F G H I J 23456789 1 0 11 12 13 14 MAIN BOARD (SIDE A) R843 R823 R827 C824 R834 R808 C803 R804 C805 C826 C851 R603 C713 R925 C922 C306 C106 C206 R108 R109 R208 R209 C907 R906 C917 C855 C856 C853 C854 C825 C918 R920 R922 D904 C310 C914 R616 R809 C819 C820 R825 R826 C804 C822 C818 C711 C712 R852 R602 R832 R829 R821 R8[...]

  • Page 35

    MZ-R501/R501PC 35 35 1 A B C D E F G H I J 2 3 4 5 6 7 8 9 10 11 12 13 14 L904 D201 D906 1 2 3 5 4 1-680-275- J901 DC IN 3V ! i MAIN BOARD (SIDE B) C828 R833 C514 C806 R806 R807 C505 R510 C513 C521 R813 C812 R812 R105 R805 R502 R811 C808 R810 R830 C802 C807 R831 FB803 R508 R504 C829 R506 C516 C519 C515 C529 C518 C522 C517 C814 R814 C811 C813 FB801 [...]

  • Page 36

    MZ-R501/R501PC 36 36 IC B/D IC B/D IC B/D C523 C516 IC501 L502 Q603 IC601 C621 L501 TP TP L601 CN501 AP501 AP502 AP503 AP504 AP522 L602 TP512 Q501 TP603 TP602 AP506 TP511 TP518 TP519 TP520 C501 C502 R501 C504 C505 R502 R510 AP505 C506 C509 C510 C507 C526 C525 C511 R505 AP532 TP535 AP525 AP531 AP530 C519 C515 AP529 C517 C522 C518 C529 C521 AP524 C51[...]

  • Page 37

    MZ-R501/R501PC 37 37 IC B/D (EXCEPT US, CND MODEL) (US, CND MODEL) S806 X801 D903 C814 C801 C823 C812 C813 C802 L802 C820 C819 C810 C811 S803 L801 C818 C822 C821 FB803 S805 C809 IC901 C803 IC805 D901 D902 C815 AP860 AP833 C826 R804 R801 TP806 AP830 R808 AP832 AP831 AP829 AP828 R809 C805 T AP802 AP824 AP826 AP825 R833 AP823 AP822 AP821 AP820 AP819 A[...]

  • Page 38

    MZ-R501/R501PC 38 38 IC B/D IC B/D J301 IC302 C320 R306 R207 R107 C315 R203 R103 C316 R106 R206 C314 R303 FB303 R307 L301 C202 C102 R202 R102 C312 FB302 FB304 C311 R105 R205 Q302 IC301 D101 D201 TP308 TP309 TP310 TP311 TP312 TP313 TP314 TP320 C323 R314 R312 R308 C324 C325 TP913 C206 C106 R109 R209 R208 C105 C205 R108 C308 C310 C306 C304 C334 R317 A[...]

  • Page 39

    39 MZ-R501/R501PC • IC BLOCK DIAGRAMS IC501 SN761057DBT 1 TE REXT Wpp LPF VREF C D D-C Iy Ix Jx Jy A A-C B ADIP-IN FE ABCD OFC-1 OFC-2 PS LP EQ AGND RF OUT CCSL2 VC XRST SCK SBUS VREF075 PEAK BOTM DGND OFTRK S-MON TON-C CIG CDN ADIP DVDD PD-I PD-NI PD-O 43 44 TWpp PK/BTM Aw CSLO VREF075 A-C D-C Malfa Mij AwBPF Dw DwBPF 42 39 AVCC 38 37 36 35 34 3[...]

  • Page 40

    40 MZ-R501/R501PC IC701 SC111257FCR2 43 PRE DRIVER PRE DRIVER + – 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 3PHASE CONTROL 35 34 33 36 31 30 29 32 8 9 10 7 12 13 14 15 11 H-BRIDGE CONTROL PRE DRIVER H-BRIDGE CONTROL 26 27 28 24 23 22 21 20 25 17 16 18 19 VC VC VG VG VC VC VC H-BRIDGE CONTROL H-BR[...]

  • Page 41

    41 MZ-R501/R501PC 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 26 27 28 VB BATM CHGSW RS INP2 INM2 RF2 DCIN CHGMON SVREF GAIN CHG DREG GND SW RECON OE CLK RI FI EFM VIO VC V RECO1 LI 1 PGND1 PGND1 LI 2 VRECO2 VREC DTC INP1 INM1 RF1 DW TP DW BT C[...]

  • Page 42

    42 MZ-R501/R501PC 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 TCMT VCC IN R IN L OUTB OUTA +B OUT L PW GND OUT R DET AGC IN BST NF2 LPF2 NF1 LPF1 VREF VREF IN GND BEEP BST SW MUTE STB BEEP BEEP 1 13 2 5 VCON VA SDTO BCLK MCLK LRCK CDTI CCLK CSN PDN VA RIN2 RIN1 LIN2 LI[...]

  • Page 43

    43 MZ-R501/R501PC SECTION 7 EXPLODED VIEWS NOTE: • The mechanical parts with no reference number in the exploded views are not supplied. • Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. •A bb re viation CND : Canadian model CH : Chinese model[...]

  • Page 44

    44 MZ-R501/R501PC 7-2. CHASSIS SECTION Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 51 52 53 54 55 57 55 56 58 59 60 61 62 63 64 MT -MZR500-172 51 X-3379-969-1 CHASSIS ASSY 52 3-318-382-01 SCREW (1.7X3), T APPING 53 4-218-233-11 SCREW (1.7), MI * 54 A-3021-481-A MAIN BOARD, COMPLETE (US) * 54 A-3021-482-A MAIN BOARD, CO[...]

  • Page 45

    45 MZ-R501/R501PC 7-3. MD MECHANISM DECK SECTION (MT -MZR500-172) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark M603 M601 M602 101 102 105 106 107 108 109 115 121 120 119 118 118 117 103 104 110 122 111 109 112 103 109 114 113 115 109 116 103 A A B B 101 X-3379-515-2 HOLDER ASSY 102 3-224-779-02 SPRING, THRUST DETENT 103[...]

  • Page 46

    46 MZ-R501/R501PC SECTION 8 ELECTRICAL P AR TS LIST NOTE: • 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 and -X mean standardized parts, so they may hav e some difference from the original one. • RESISTORS All resistors are in ohms. ME[...]

  • Page 47

    47 MZ-R501/R501PC Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MAIN C705 1-135-211-11 T ANT AL. CHIP 6.8uF 20% 6.3V C706 1-135-211-11 T ANT AL. CHIP 6.8uF 20% 6.3V C707 1-104-912-11 T ANT AL. CHIP 3.3uF 20% 6.3V C708 1-119-749-11 T ANT AL. CHIP 33uF 20% 4V C709 1-104-912-11 T ANT AL. CHIP 3.3uF 20% 6.3V C710 1-125-777-1[...]

  • Page 48

    48 MZ-R501/R501PC Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MAIN @ Replacement of CXD2671-204GA (IC801) used in this set requires a special tool. Therefore, it cannot be replaced. FB801 1-414-226-21 INDUCTOR, FERRITE BEAD (US,CND) FB802 1-216-864-11 MET AL CHIP 0 5% 1/16W FB803 1-216-864-11 MET AL CHIP 0 5% 1/16W FB8[...]

  • Page 49

    49 MZ-R501/R501PC Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MAIN R801 1-218-990-11 SHORT 0 R804 1-218-990-11 SHORT 0 R805 1-218-981-11 RES-CHIP 220K 5% 1/16W R806 1-208-927-11 MET AL CHIP 47K 0.5% 1/16W R807 1-208-927-11 MET AL CHIP 47K 0.5% 1/16W R808 1-218-959-11 RES-CHIP 3.3K 5% 1/16W R809 1-218-959-11 RES-CHIP 3.[...]

  • Page 50

    50 MZ-R501/R501PC Ref. No. Part No. Description Remark ACCESSORIES ************ 0 1-418-784-11 ADAPTOR, AC (AC-MZR55) (CH) 0 1-476-857-11 ADAPTOR, AC (AC-ES305) (AEP ,FR,EE) 0 1-476-858-11 ADAPTOR, AC (AC-ES305) (UK) 0 1-476-861-11 ADAPTOR, AC (AC-ES305) (AR) 1-779-504-11 CONNECTOR, OPTICAL (EXCEPT R501:US,E) 1-796-016-21 MD-POR T , AN-1 (R501PC) 3[...]

  • Page 51

    51 MZ-R501/R501PC MEMO[...]

  • Page 52

    52 MZ-R501/R501PC REVISION HIST OR Y Clicking the ver sion allows y ou to jump to the re vised page. Also, clicking the v ersion at the upper on the revised pa ge allo ws you to jump to the next re vised page. Ve r. Date Description of Revision 1.0 2001. 11 Ne w 1.1 2002. 03 Addition of Destination (R501: Canadian, Chinese, French, Argentina model,[...]