Sony MZ-R501 Service Manual
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MZ-R501/R501PC
SERVICE MANUAL
Ver 1.1 2002. 03
Ver 1.0 2001. 01
US and foreign patents licensed from Dolby
Laboratories.
System
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: λ = 790 nm
Emission duration: continuous
Laser output: less than 44.6 µW
(This output is the value measured at a
distance of 200 mm from the lens surface
on the optical pick-up block with 7 mm
aperture.)
Recording and playback time
When using MDW-80
Maximum 160 min. in monaural
Maximum 320 min. in stereo
Revolutions
350 rpm to 2,800 rpm (CLV)
Error correction
ACIRC (Advanced Cross Interleave Reed
Solomon Code)
Sampling frequency
44.1 kHz
Sampling rate converter
Input: 32 kHz/44.1 kHz/48 kHz
Coding
ATRAC (Adaptive TRansform Acoustic
Coding)
ATRAC3-LP2
ATRAC3-LP4
Sony Corporation
9-873-408-02
2002C0400-1
Personal Audio Company
© 2002. 03
Published by Sony Engineering Corporation
Photo: Silver
Model Name Using Similar Mechanism
Mechanism Type
Optical Pick-up Name
SPECIFICATIONS
Modulation system
EFM (Eight to Fourteen Modulation)
Number of channels
2 stereo channels
1 monaural channel
Frequency response
20 to 20,000 Hz ± 3 dB
Wow and Flutter
Below measurable limit
Inputs
Line in: stereo mini-jack, minimum input
level 49 mV
Optical (Digital) in: optical (digital) mini-
jack
Outputs
i: stereo mini-jack, maximum output level
5 mW + 5 mW, load impedance 16 ohm
PORTABLE MINIDISC RECORDER
US Model
Canadian Model
AEP Model
UK Model
Chinese Model
E Model
East European Model
MZ-R501/R501PC
MZ-R500
MT-MZR500-172
LCX-4R
General
Power requirements
Sony AC Power adaptor connected at the
DC IN 3 V jack
120 V AC, 60 Hz (US, Canadian model)
230 V AC, 50/60 Hz (AEP model)
230 – 240 V AC, 50 Hz (UK model)
100 – 240 V AC, 50/60 Hz (E model)
220 V AC, 50 Hz (Chinese, Argentina
model)
One LR6 (size AA) alkaline dry battery (not
supplied)
– Continued on next page –
MZ-R501
1
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Table of Contents
Related Manuals for Sony MZ-R501
Summary of Contents for Sony MZ-R501
- Page 1 Audio playing system EFM (Eight to Fourteen Modulation) Power requirements Number of channels MiniDisc digital audio system Sony AC Power adaptor connected at the Laser diode properties 2 stereo channels DC IN 3 V jack Material: GaAlAs 1 monaural channel...
- Page 2 Measured value by the standard of JEITA (Japan Electronics and Information Technology Industries Association). Notes on chip component replacement When using a Sony LR6 (SG) “STAMINA” alkaline dry battery • Never reuse a disconnected chip component. (produced in Japan). • Notice that the minus side of a tantalum capacitor may be To prevent interrupted recording due to drained battery, use new damaged by heat.
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Page 3: Table Of Contents
MZ-R501/R501PC TABLE OF CONTENTS 1. SERVICING NOTE 5. ELECTRICAL ADJUSTMENTS ............4 5-1. Outline ................17 5-2. Precautions for Adjustment ..........17 2. GENERAL 5-3. Adjustment Sequence ............17 Looking at the Controls ............5 5-4. NV Reset ................17 5-5. -
Page 4: Servicing Note
MZ-R501/R501PC SECTION 1 SERVICING NOTE • In performing the repair with the power supplied to the set, NOTES ON HANDLING THE OPTICAL PICK-UP removing the MAIN board causes the set to be disabled. BLOCK OR BASE UNIT In such a case, fix a convex part of the open/close detect switch The laser diode in the optical pick-up block may suffer electro- (S806 on MAIN board) with a tape in advance. -
Page 5: General
MZ-R501/R501PC SECTION 2 GENERAL This section is extracted from instruction manual. Looking at the controls See pages in ( ) for more details. The recorder A N button (11) (13) (17) (25) B VOL +/– buttons (13) (26) C x button (11) (13) (27) -
Page 6: Disassembly
MZ-R501/R501PC SECTION 3 DISASSEMBLY Note : This set can be disassemble according to the following sequence. 3-4. MAIN BOARD 3-9. DC MOTOR (M602) (Page 7) (Page 10) 3-1. CASE (LOWER) ASSY (Page 6) 3-5. MD MECHANISM DECK 3-10. DC MOTOR (M601) -
Page 7: Lcd Module
MZ-R501/R501PC 3-3. LCD MODULE 2 screws (1.7x3), tapping 1 screws (1.7x3), tapping claws 4 LCD module case (upper) assy 3-4. MAIN BOARD 4 screws (M1.4x2), toothed lock 2 Remove the solders 3 screws (M1.4x2), 8 CN501 toothed lock qs Remove the solder... -
Page 8: Md Mechanism Deck
MZ-R501/R501PC 3-5. MD MECHANISM DECK 3 MD mechanism deck boss 2 chassis assy, set 1 screws (1.7), MI 3-6. SERVICE ASSY, OP 1 washer (0.8 - 2.5) 5 precision pan screw 3 precision pan screw (M1.4) 2 gear (SA) (M1.4) -
Page 9: Holder Assy
MZ-R501/R501PC 3-7. HOLDER ASSY 4 Remove the holder assy to direction of the arrow B. 1 Open the holder assy. 3 boss 3-8. MOTOR FLEXIBLE BOARD 1 Remove four solders of 5 motor flexible board DC motor (sled) (M602). 2 Remove two solders of DC motor (over write head up/down) (M603). -
Page 10: Dc Motor (M602)
MZ-R501/R501PC 3-9. DC MOTOR (M602) 1 Remove four solders of motor flexible board. 2 washer (0.8 - 2.5) 4 two precision pan screws (M1.4) 3 gear (SA) 5 DC motor (sled) (M602) 3-10. DC MOTOR (M601), DC MOTOR (M603) Note: Press-fit the gear (HA) up to the... -
Page 11: Test Mode
MZ-R501/R501PC SECTION 4 TEST MODE 4-1. Outline 4-3. Operation in Setting the Test Mode • This set provides the Overall adjustment mode that allows CD • When the test mode becomes active, first the display check mode and MO discs to be automatically adjusted when in the test mode. -
Page 12: Configuration Of Test Mode
MZ-R501/R501PC 4-5. Configuration of Test Mode VOL + key: 100th Place of item number Major item switching increase. Test mode (Display Check Mode) VOL – key: 100th Place of item number Press the > or VOL + decrease. N key... -
Page 13: Overall Adjustment Mode
MZ-R501/R501PC 5. The display changes a shown below each time the 4-8. Self-Diagnosis Result Display Mode [ENTER] key on the set is pressed. This set uses the self-diagnostic function system in which if an error occurred during the recording or playing, the mechanism... -
Page 14: Reset The Error Display Code
MZ-R501/R501PC • Description of Error Indication Codes Problem Indication code Meaning of code Simple display Description No error No error No error Illegal access target Adrs Attempt to access an abnormal address address was specified Servo system error High temperature... -
Page 15: Sound Skip Check Result Display Mode
MZ-R501/R501PC 4-10. Sound Skip Check Result Display Mode • Cause of Sound Skip Error This set can display the count of errors that occurred during the Cause of error Description of error recording/playing for checking. Sound error correction error • Setting method of sound skip check result display... - Page 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: This set LCD display...
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Page 17: Electrical Adjustments
0 2 1 • Test CD disc TDYS-1 (Part No. : 4-963-646-01) 3. Press the key once more. • SONY MO disc available on the market • Digital voltmeter This set LCD display • Laser power meter LPM-8001 (Part No. : J-2501-046-A) •... -
Page 18: Power Supply Manual Adjustment
MZ-R501/R501PC [VOL+] [VOL--] 5) Adjust with the key (adjusted value up) or • Setting method of power supply manual adjustment key (adjusted value down) so that the adjusted value becomes 1. Make sure that the power supply voltage is 3V. -
Page 19: Temperature Correction
MZ-R501/R501PC [VOL +] [VOL --] 2. Connect a digital voltmeter to the TP902 (VC) on the MAIN 3. Adjust with key so that the adjusted value [VOL +] [VOL --] board, and adjust key (voltage up) or (hexadecimal value) becomes the ambient temperature. -
Page 20: Overall Adjustment Mode
MZ-R501/R501PC 8. Press the key, and set the laser CD read adjustment 5-8. Overall Adjustment Mode mode (item number 012). • Configuration of overall adjustment This set LCD display . key Overall adjustment mode (Title display) HrefPw 0 1 2... - Page 21 MZ-R501/R501PC • Overall Adjustment Mode (Title Display) • Adjustment Method of Overall CD and MO Adjustment Mode This set LCD display 1. Setting the test mode (see page 11). [VOL --] 2. Press the key activates the overall adjust- ment mode.
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Page 22: Mode Settings
MZ-R501/R501PC • Overall CD and MO adjustment items 5-9. Mode Settings 1. Overall CD adjustment items After CD overall and MO overall adjustments are made, the fol- lowing two modes should be set in the manual mode: Item No. Description •... -
Page 23: Resume Clear
MZ-R501/R501PC [VOL+] [VOL--] 2. Adjust with the key (adjusted value up) or key (adjusted value down) so that the adjusted value becomes S67. This set LCD display ***S67 8 6 7 3. Press the key. 4. Set item number 868 (see page 12). -
Page 24: Diagrams
MZ-R501/R501PC SECTION 6 DIAGRAMS 6-1. IC PIN FUNCTION DESCRIPTION • IC501 SN761057DBT (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. Pin Name Description Tracking error signal output to the system controller (IC801) REXT — Connect terminal to the external resistor for ADIP amp control WPPLPF —... - Page 25 MZ-R501/R501PC • IC801 CXD2671-204GA (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM) Pin No. Pin Name Description PAUSE KEY Set key input terminal (X key input) Control signal output to the microphone amp (MIC SENSE) “H”: HIGH, “L”: LOW, normally: “H”...
- Page 26 MZ-R501/R501PC Pin No. Pin Name Description AVD2 — Power supply terminal (for the analog) (+2.4 V) AVS2 — Ground terminal (for the analog) ADRB A/D converter the lower limit voltage input (fixed at “L” in this set) Sled error signal input terminal Not used (fixed at “L”)
- Page 27 MZ-R501/R501PC Pin No. Pin Name Description Sled motor drive signal output (W) to the motor driver (IC701)/drive control signal SLDW output (2+) SLCU Spindle motor drive comparison signal input (U) from the motor driver (IC701) SLCV Spindle motor drive comparison signal input (V) from the motor driver (IC701)
- Page 28 MZ-R501/R501PC Pin No. Pin Name Description CLK SEL System clock select signal output to the power control (IC901) Open/close detection switch (S806) of the upper panel input terminal (A/D input) OPEN CLOSE SW “L”: when upper panel close GND SW...
- Page 29 MZ-R501/R501PC Pin No. Pin Name Description SPDL MON Spindle servo monitor signal input 224 to 226 (XAVLS), (SOUND 1, 2) Not used (open) XHOLD SW HOLD switch (SW801) input terminal “L”: hold ON, “H”: hold OFF (SYCN REC) SYNCHRO REC switch input terminal “L”: OFF, “H”: ON Not used (open)
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Page 30: Block Diagram - Servo Section
MZ-R501/R501PC 6-2. BLOCK DIAGRAM — SERVO SECTION — MAIN BOARD (1/3) SERVO SECTION MOTOR FLEXIBLE MECHANISM (1/2) BOARD (1/2) OVER WRITE HEAD DRIVE HD DRV+ M603 IC601(1/2) Signal path HD DRV– OVER WRITE HEAD CN701(1/2) : PLAYBACK UP/DOWN : REC(ANALOG IN) -
Page 31: Block Diagram - Audio Section
MZ-R501/R501PC 6-3. BLOCK DIAGRAM — AUDIO SECTION — MAIN BOARD (2/3)AUDIO SECTION OPTICAL RECEIVER OPT CONTROL VIF B+ SWITCH Q302 DIN1 J301 LINE IN (OPTICAL) SERVO (LINE IN JACK) SECTION (Page 30) LIN2 LIN1 SDTO CONVERTER GAIN ADDT RIN2 &... -
Page 32: Block Diagram - System Control/Power Section
MZ-R501/R501PC 6-4. BLOCK DIAGRAM — SYSTEM CONTROL / POWER SECTION — MAIN BOARD (3/3) SYSTEM CONTROL/POWER SECTION AUDIO RMC KEY SECTION (Page 31) VRMC XWK3 RMC KEY CLK SEL CLK SEL FFCLR FFCLR SLEEP SYSTEM SLEEP VLON CONTROL VLON XWK1... - Page 33 MZ-R501/R501PC Ver 1.1 Common note on Printed Wiring Board: Common note on Schematic Diagram: • Waveforms • Y : parts extracted from the conductor side. • All capacitors are in µF unless otherwise noted. pF: µµF • : Pattern from the side which enables seeing.
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Page 34: Printed Wiring Board - Main Section
MZ-R501/R501PC Ver 1.1 6-5. PRINTED WIRING BOARD — MAIN SECTION — • Refer to page 33 for Note. • Semiconductor Location (SIDE A) Ref. No. Location D601 D802 D901 H-10 D902 D904 H-11 D905 D908 S805 (HALF LOCK) IC804 MAIN BOARD... - Page 35 MZ-R501/R501PC • Semiconductor Location (SIDE B) Ref. No. Location D101 B-11 S803 D201 D-11 (PROTECT DETECT) D301 D-11 D602 TP803 D603 TP914 DRY BATTERY D604 SIZE " AA " D903 H-11 (IEC DESIGNATION R6) D101 TP805 D906 H-11 1PC,1.5V IC301...
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Page 36: Schematic Diagram - Main Section (1/3)
MZ-R501/R501PC 6-6. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — • Refer to page 33 for Waveforms. Refer to page 39 for IC Block Diagrams. Refer to page 33 for Note. TP603 TP602 TP601 TAP501 C513 AP526 AP533 C505 R510 C618... -
Page 37: Schematic Diagram - Main Section (2/3)
MZ-R501/R501PC Ver 1.1 6-7. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) — • Refer to page 33 for Waveforms. Refer to page 41 for IC Block Diagrams. Refer to page 33 for Note. R827 C804 IC804 C823 TAP802 AP830 R804 D802... -
Page 38: Schematic Diagram - Main Section (3/3)
MZ-R501/R501PC Ver 1.1 6-8. SCHEMATIC DIAGRAM — MAIN SECTION (3/3) — • Refer to page 42 for IC Block Diagrams. Refer to page 33 for Note. R313 C320 C318 R304 R207 R112 R306 C316 C319 R212 R107 Q301 C315 L303... -
Page 39: Ic Block Diagrams
MZ-R501/R501PC • IC BLOCK DIAGRAMS IC501 SN761057DBT ADIP-IN S-MON A+B+C+D TWpp PK/BTM CSLO REXT VREF075 Wpp LPF Aw+Dw S-MONITOR TON Peak VREF TON Botm Malfa ADIP AwBPF TEMP DwBPF Tpp/Wpp ABCD OFC-1 OFC-2 AVCC AGND RF OUT CCSL2 ABCD VREF075... - Page 40 MZ-R501/R501PC IC701 SC111257FCR2 42 41 – VC VG – PRE DRIVER PRE DRIVER PGNDW H-BRIDGE H-BRIDGE CONTROL CONTROL VMVW PGNDUV GND2 GND1 BIAS CPWI – PWM24 CPVI – CPUI – H-BRIDGE H-BRIDGE CPWO CONTROL CONTROL CPVO VC VG PRE DRIVER...
- Page 41 MZ-R501/R501PC IC601 XPC18A22FCR2 VC2 VG OUTPUT SW OUTPUT SW CHARGE CHARGE PUMP 1 PUMP 2 VC VG DC IN HI-BRIDGE CHARGE PRE DRIVER PRE DRIVER MONITOR VREF VREF X2/X4 BATM BUFFER DC IN CVREF CONTROL CONTROL CHARGE CHGSW DW BT...
- Page 42 MZ-R501/R501PC IC301 AK5354VT CONTROL REGISTER CCLK CDTI LRCK MCLK CLOCK DIVIDER LIN1 BCLK IPGA AUDIO I/F SDTO CONTROLLER RIN1 LIN2 RIN2 VCON VCON AGND IC302 TA2131FL BEEP V REF VREF LPF1 TCMT IN R BST1 IN L LPF2 OUTB BST2...
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Page 43: Exploded Views
MZ-R501/R501PC Ver 1.1 SECTION 7 EXPLODED VIEWS NOTE: • The mechanical parts with no reference • -XX and -X mean standardized parts, so The components identified by number in the exploded views are not supplied. they may have some difference from the mark 0 or dotted line with mark •... -
Page 44: Chassis Section
MZ-R501/R501PC Ver 1.1 7-2. CHASSIS SECTION MT-MZR500-172 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-3379-969-1 CHASSIS ASSY 3-225-631-01 TERMINAL (–), BATTERY 3-318-382-01 SCREW (1.7X3), TAPPING 3-225-632-01 SPRING (LIMITER), COMPRESSION 4-218-233-11 SCREW (1.7), MI 3-225-633-01 SPRING (OPEN), TENSION... -
Page 45: Md Mechanism Deck Section
MZ-R501/R501PC Ver 1.1 7-3. MD MECHANISM DECK SECTION (MT-MZR500-172) M603 M602 M601 The components identified by Les composants identifiés par une mark 0 or dotted line with mark marque 0 sont critiques pour la 0 are critical for safety. sécurité. -
Page 46: Electrical Parts List
MZ-R501/R501PC Ver 1.1 SECTION 8 MAIN ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since The components identified by mark 0 or dotted line with mark the parts list may be different from the they are seldom required for routine service. - Page 47 MZ-R501/R501PC Ver 1.1 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C705 1-135-211-11 TANTAL. CHIP 6.8uF 6.3V C910 1-115-169-11 TANTALUM 10uF 6.3V C706 1-135-211-11 TANTAL. CHIP 6.8uF 6.3V C911 1-164-941-11 CERAMIC CHIP 0.0047uF 10% C707 1-104-912-11 TANTAL.
- Page 48 MZ-R501/R501PC Ver 1.1 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark FB801 1-414-226-21 INDUCTOR, FERRITE BEAD (US,CND) < RESISTOR > FB802 1-216-864-11 METAL CHIP 1/16W FB803 1-216-864-11 METAL CHIP 1/16W R102 1-218-990-11 SHORT FB804 1-216-864-11 METAL CHIP...
- Page 49 MZ-R501/R501PC Ver 1.1 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R801 1-218-990-11 SHORT R931 1-218-990-11 SHORT R804 1-218-990-11 SHORT R933 1-218-990-11 SHORT R805 1-218-981-11 RES-CHIP 220K 1/16W R936 1-218-990-11 SHORT R806 1-208-927-11 METAL CHIP 0.5%...
- Page 50 MZ-R501/R501PC Ver 1.1 Ref. No. Part No. Description Remark ACCESSORIES ************ 1-418-784-11 ADAPTOR, AC (AC-MZR55) (CH) 1-476-857-11 ADAPTOR, AC (AC-ES305) (AEP,FR,EE) 1-476-858-11 ADAPTOR, AC (AC-ES305) (UK) 1-476-861-11 ADAPTOR, AC (AC-ES305) (AR) 1-779-504-11 CONNECTOR, OPTICAL (EXCEPT R501:US,E) 1-796-016-21 MD-PORT, AN-1 (R501PC)
- Page 51 MZ-R501/R501PC MEMO...
- Page 52 MZ-R501/R501PC REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2001. 11 2002.