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SERVICE MANUAL
Ver 1.0 2002. 02
US and foreign patents licensed from Dolby
Laboratories.
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 objective lens surface on
the optical pick-up block with 7 mm aperture.
Revolutions
Approx. 300 rpm to 2,700 rpm
Error correction
ACIRC (Advanced Cross Interleave Reed
Solomon Code)
Sampling frequency
44.1 kHz
Coding
ATRAC (Adaptive TRansform Acoustic Coding)
ATRAC3: LP2/LP4
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 limits
Outputs
Headphones/earphones: stereo mini-jack,
maximum output level
5 mW + 5 mW load impedance 16 Ω
Sony Corporation
9-873-487-01
2002B0500-1
Personal Audio Company
C 2002.02
Published by Sony Engineering Corporation
Model Name Using Similar Mechanism
Mechanism Type
Optical Pick-up Name
SPECIFICATIONS
Power requirements
Player:
Nickel metal hydride rechargeable
battery
One NH-14WM(A) (supplied): 1.2V,
1,350 mAh
One LR6 (size AA) battery (not
supplied)
Battery charging stand:
AC power adaptor DC 3V, AC 100V,
50/60Hz
Dimensions
Approx. 74.5 × 81.0 × 17.6 mm (w/h/d)
(3 × 3
×
1
/
23
/
in.)
4
32
(not including projecting parts and controls)
Mass
Approx. 73 g (2.6 oz) (the player only)
Supplied accessories
Headphones/earphones (1)
Battery charging stand (1)
AC power adaptor (for the supplied battery
charging stand) (1)
Rechargeable battery (1)
Rechargeable battery carrying case (1)
Dry battery case (1)
Carrying pouch (1)
PORTABLE MINIDISC PLAYER
MZ-E505
NEW
MT-MZE505-176
LCX-4E
– Continued on next page –
E Model
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Summary of Contents for Sony MZ-E505
- Page 1 Below measurable limits Outputs Headphones/earphones: stereo mini-jack, maximum output level 5 mW + 5 mW load impedance 16 Ω – Continued on next page – PORTABLE MINIDISC PLAYER Sony Corporation 9-873-487-01 2002B0500-1 Personal Audio Company C 2002.02 Published by Sony Engineering Corporation...
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Page 2: Table Of Contents
MDW-series Mini-disc). 3-11. Optical Pick-up (LCX-4E) ..........11 With a fully charged battery When using a Sony LR6 (SG) “STAMINA” alkaline 3-12. DC SSM18B Motor (Spindle) (M901) ......11 dry battery (produced in Japan). 3-13. DC Motor (Sled) (M902) ..........12... -
Page 3: Servicing Notes
MZ-E505 SECTION 1 SERVICING NOTES ABOUT VIOLET-COLOR-TYPE NOTES ON HANDLING THE OPTICAL PICK-UP Not a whole set of the violet-color-type is colored violet, but only BLOCK OR BASE UNIT the ornamental belt and window (ornament) is violet, and the up-... -
Page 4: General
MZ-E505 SECTION 2 This section is extracted from instruction manual. GENERAL Parts and controls The earphones with a remote The Player control 1 ./ N>* button 2 VOL +*/– button 3 i (earphones) jack 4 OPEN switch 5 Battery compartment... -
Page 5: Disassembly
MZ-E505 SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW 3-2. BATTERY CASE LID (Page 6) 3-3. CASE (REAR) (Page 6) 3-4. MAIN BOARD 3-5. UPPER PANEL SECTION (Page 7) (Page 7) 3-7. -
Page 6: Battery Case Lid
MZ-E505 Note: Follow the disassembly procedure in the numerical order given. 3-2. BATTERY CASE LID 2 claw 1 Open the battery case lid. 3 battery case lid 3-3. CASE (REAR) 1 Close the battery terminal board assy. 2 screw (1.7) 3 two screws (M1.4) -
Page 7: Main Board
MZ-E505 3-4. MAIN BOARD 1 Remove solder of the battery terminal board assy. 4 boss 3 flexible board (switch board) (CN801) 2 five screws (M1.4 × 2) 8 main board 6 flexible board (optical pick-up) (CN501) 7 flexible board (motor) (CN551) 3-5. -
Page 8: Switch Board
MZ-E505 3-6. SWITCH BOARD 2 convex portion 2 convex portion 3 switch board 1 four screws (1.7 × 2.5) 3-7. HOLDER ASSY (Z) 1 convex portion 4 holder assy (Z) 1 convex portion 3 two bosses... -
Page 9: Mechanism Deck (Mt-Mze505-176)
MZ-E505 3-8. MECHANISM DECK (MT-MZE505-176) 1 step screw (L) 5 Lift up the mechanism deck in the direction of the arrow. 3 claw 4 convex portion 2 nut (M1.4) 8 mechanism deck (MT-MZE505-176) 7 flexible board (motor) (CN551) 6 flexible board (optical pick-up) -
Page 10: Bracket (L) Assy
MZ-E505 3-9. BRACKET (L) ASSY 3 bracket (L) assy 2 convex portion 2 convex portion 1 two claws 3-10. BRACKET (R) ASSY 3 bracket (R) assy Note: On installation, adjust the position of knob (open) and open slider. open slider... -
Page 11: Optical Pick-Up (Lcx-4E)
MZ-E505 3-11. OPTICAL PICK-UP (LCX-4E) 1 washer 3 screw (M1.4) 2 gear (SA) 4 thrust detent spring 5 optical pick-up (LCX-4E) 3-12. DC SSM18B MOTOR (SPINDLE) (M901) 2 Remove the flexible board. 1 Remove the four solders. 3 three tapping screws... -
Page 12: Dc Motor (Sled) (M902)
MZ-E505 3-13. DC MOTOR (SLED) (M902) 4 two screws (M1.4) 5 DC motor (sled) (M902) 1 Remove the four solders. 2 washer (0.8-2.5) 3 gear (SA) -
Page 13: Test Mode
MZ-E505 SECTION 4 TEST MODE 4-1. GENERAL Remote control LCD • When entered in the TEST MODE, this set provides the Overall Adjustment mode which allows CD and MO discs to be auto- matically adjusted. In the Overall Adjustment mode, the system... - Page 14 MZ-E505 4-3. TEST MODE STRUCTURE 3. Each test item is assigned with a three-digit item number. The 100th place is a major item, 10th place is a middle item, and unit place is a minor item. Test Mode (Display Check Mode)
- Page 15 MZ-E505 5. To terminate the Manual mode and return to the TEST MODE, press x key. 4-5. OVERALL ADJUSTMENT MODE 4-5-1. Outline of the function This mode is designed to adjust the servo system automatically by going through all the adjustment items.
- Page 16 MZ-E505 • Description of the error display codes Simplified Contents of fault Display code Meaning of code Description contents No error No error – – – – No error Access target address illegally specified Adrs An attempt to access an abnormal address.
- Page 17 MZ-E505 4-8. KEY CHECK MODE 4-7. SOUND SKIP CHECK RESULT DISPLAY MODE This set can display and check the error count occurring during 4-8-1. Outline of the function play. This mode is used to check to make sure that each of the keys •...
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Page 18: Electrical Adjustments
MZ-E505 SECTION 5 ELECTRICAL ADJUSTMENTS 5-1. GENERAL 5-4. MANUAL POWER ADJUSTMENTS In this set, CD and MO discs can be automatically adjusted by set- 5-4-1. Adjustment sequence ting the Overall Adjustment mode within the TEST MODE, The adjustments should be always performed in the following se-... - Page 19 MZ-E505 5-4-3. VI PWM Duty adjustment 5-5. OVERALL ADJUSTMENT MODE 5-5-1. Overall adjustment mode structure Connection: digital TEST MODE voltmeter (Display Check Mode) MAIN board TP904 (VL) Overall Adjustment TP921 (GND) Title Display(ASSY**) Procedure: CD overall Adjustment > N 1. Set the Manual mode and set the item No. to 764.
- Page 20 MZ-E505 6. If NG in the overall MO adjustments, return to Reset NV and 5-5-5. Overall CD and MO adjustment items perform the adjustment again. 1. Overall offset adjustment Item No. Contents LCD display GRV setting • Sarvo OFF • Head UP...
- Page 21 MZ-E505 5-6. LED VOLTAGE ADJUSTMENTS Item No. Contents Tracking servo ON 5-6-1. LED voltage check ABCD gain adjustment Connection: KF gain adjustment digital RF gain adjustment voltmeter FCS gain adjustment MAIN board TRK gain adjustment TP902 (VCOUT) READ GRV adjustment 1...
- Page 22 MZ-E505 5. Judge LED voltage value is OK or NG by using the voltage value confirmed at step 3 and 4. IN case of jadgment result is NG, adjust the LED voltage (See page 23). flow chart of judging LED voltage is OK or NG: Vred: High luminosity RED voltage value (item No.
- Page 23 MZ-E505 5-6-2. LED voltage adjustment Connecting Location: Note: This adjustment performed only when the judgment result – MAIN BOARD (Component Side) – of judging LED voltage value is OK or NG is NG (See page 22). IC301 Connection: digital TP901...
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Page 24: Diagrams
MZ-E505 SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM RF AMP,FOCUS/TRACKING ERROR AMP IC501 HEADPHONE AMP IC301 VREF IN L OUT L RF OUT AOUTL J301 PEAK PEAK PEAK IN R RF AMP, BOTM OUT R /BOTM BOTM AOUTR JX JY JX... -
Page 25: Note For Printed Wiring Boards And Schematic Diagrams
MZ-E505 • Waveforms 6-2. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS qa IC601 th (TE) 1 IC501 1 (TE) 6 IC501 ed (RF OUT) 200 mV/DIV, 1 µs/DIV 200 mV/DIV, 1 µs/DIV 500 mV/DIV, 500 ns/DIV Note on Printed Wiring Board: Note on Schematic Diagram: •... -
Page 26: Main Board (Component Side)
MZ-E505 6-3. PRINTED WIRING BOARD – MAIN board (Component Side) – • Semiconductor Location Ref. No. Location RECHARGEABLE BATTERY NH-14WM D855 C-10 MAIN BOARD (COMPONENT SIDE) 1.2V 1350mAh D901 D902 D903 Q301 C527 C504 C503 IC301 B-10 R517 C304 IC501... -
Page 27: Main Board (Conductor Side)
MZ-E505 6-4. PRINTED WIRING BOARD – MAIN board (Conductor Side) – • Semiconductor Location Ref. No. Location D101 MAIN BOARD (CONDUCTOR SIDE) D201 IC551 D201 IC903 H-10 C952 Q501 R817 C999 C529 Q501 R521 J301 C524 R203 L503 IC551 D101... -
Page 28: Schematic Diagram - Main Board (1/3)
MZ-E505 6-5. SCHEMATIC DIAGRAM – MAIN Board (1/3) – • • See page 25 for Waveform. See page 31 for IC Block Diagrams. (1/3) C620 XCS NV R525 C508 TAP601 1500p (TEST) R827 C808 XBUSY RF AMP, CN501 R503 C501... -
Page 29: Schematic Diagram - Main Board (2/3)
MZ-E505 6-6. SCHEMATIC DIAGRAM – MAIN Board (2/3) – • • See page 25 for Waveform. See page 31 for IC Block Diagrams. (Page 28) (2/3) M901 (SPINDLE) FLEXIBLE BOARD CN551 CLVN C922 C901 R948 150k CLVU 6.3V 6.3V R946... -
Page 30: Schematic Diagram - Main Board (3/3)
MZ-E505 6-7. SCHEMATIC DIAGRAM – MAIN Board (3/3) – • • See page 25 for Waveform. See page 31 for IC Block Diagrams. (Page 28) (3/3) TP815 CN801 R811 (LED ADJ) LEDVDD LED R PWM LED R PWM LED G PWM... -
Page 31: Ic Block Diagrams
MZ-E505 • IC Block Diagrams IC301 TA2131FL (EL) BEEP V REF VREF LPF1 MT TC VCC1 BST NF1 BST1 LPF2 BEEP BST2 BST NF2 OUTB BST OUT BEEP OUTA IC501 SN761057ADBT ADIP-IN S-MON A+B+C+D TWpp PK/BTM CSLO REXT VREF075 Aw+Dw... - Page 32 MZ-E505 IC551 SC111258FCR2 42 41 35 34 31 30 29 PWM2 3PHASE CONTROL 3PHASE H-BRIDGE H-BRIDGE PRE DRIVER PRE DRIVER CONTROL VC LOW VOLTAGE DETECTOR COM2 CPUI2 – CPUO2 CPVO2 – CPVI2 CPWO2 – CPWI2 BIAS GND2 VC VG GND1 –...
- Page 33 MZ-E505 IC901 XPC18A32FCR2 36 35 34 33 32 31 30 29 OUTPUT OUTPUT SW SERIES PASS SERIES PASS SERIES PASS OUTPUT SW REGULATOR VA REGULATOR VD REGULATOR VIF POWER – SWITCH 1 INM1 STEP-UP PRE DRIVER DTC1 XRST OUTPUT SW...
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Page 34: Ic Pin Function Description
MZ-E505 6-8. IC PIN FUNCTION DESCRIPTION • IC501 SN761057ADBT (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. Pin Name Description Tracking error signal output to the system controller REXT — Connect terminal to the external resistor for ADIP amp control WPP-LPF —... - Page 35 MZ-E505 • IC801 CXD2671-210GA (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM) Pin No. Description Pin Name — SCS1 Not used — Not used — Not used SCK1 — Not used — 78 DD CTL Not used — MCUVDD0 Power supply terminal (for microcomputer block) (+1.5V) —...
- Page 36 MZ-E505 Pin No. Pin Name Description BOTM Bottom hold signal input of the light amount signal (RF/ABCD) from RF amp ABCD Light amount signal (ABCD) input from RF amp Focus error signal input from RF amp AUX1 Support signal (I signal/temperature signal) input terminal (A/D input) Not used Middle point voltage (+1.2V) input terminal...
- Page 37 MZ-E505 Pin No. Pin Name Description SPDW Spindle motor drive control signal output (W) to the motor driver — DSPVDD2 Power supply terminal (for DSP block) (+1.5V) — DSPVSS1 Ground terminal (for DSP block) SPCU Spindle motor drive comparison signal input (U) from the motor driver...
- Page 38 MZ-E505 Pin No. Pin Name Description 156, 157 TEST1, TEST0 Input terminal for the main test (normally fixed at “L”) EVA/FLASH chip discrimination terminal “L”: FLASH chip, “H”: EVA chip — Not used SSB DATA Input/output of SSB data with RF amp...
- Page 39 MZ-E505 Pin No. Pin Name Description XPD ADA Power supply control signal output terminal Not used XCS LCD Chip select signal output terminal Not used LCD STB Strobe signal output terminal Not used OPR LED G H Not used REC OPR LED...
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Page 40: Exploded Views
MZ-E505 SECTION 7 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they The components identified by mark 0 or dotted line with mark may have some difference from the original are seldom required for routine service. -
Page 41: Ornamental Belt Section
MZ-E505 7-2. ORNAMENTAL BELT SECTION MT-MZE505-176 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-335-797-01 SCREW (M1.4X2), TOOTHED LOCK 3-231-313-01 SCREW (L), STEP * 52 A-3021-679-A MAIN BOARD, COMPLETE X-3380-986-1 HOLDER ASSY (Z) 3-235-193-01 KNOB (OPEN) -
Page 42: Mechanism Deck Section (Mt-Mze505-176)
MZ-E505 7-3. MECHANISM DECK SECTION (MT-MZE505-176) M902 not supplied M901 The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Ref. No. Part No. Description Remark Ref. No. -
Page 43: Electrical Parts List
MZ-E505 SECTION 8 ELECTRICAL PARTS LIST MAIN NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they The components identified by 0 or dotted line with mark mark parts list may be different from the parts speci- are seldom required for routine service. - Page 44 MZ-E505 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C922 1-119-750-11 TANTALUM CHIP 22uF 6.3V R204 1-208-635-11 RES-CHIP 1/16W C952 1-128-964-11 TANTALUM CHIP 100uF 6.3V R205 1-218-977-11 RES-CHIP 100K 1/16W C994 1-164-931-11 CERAMIC CHIP 100PF...
- Page 45 MZ-E505 MAIN SWITCH Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < COMPOSITION CIRCUIT BLOCK > RB301 1-233-970-21 RES, NETWORK (CHIP TYPE) 33K RB553 1-233-967-11 RES, NETWORK (CHIP TYPE) 10K RB554 1-233-964-21 RES, NETWORK (CHIP TYPE) 3.3K <...
- Page 46 MZ-E505 REVISION HISTORY 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. Ver. Date Description of Revision...