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Sony MZ-R55 Service Manual

Sony MZ-R55 Manual Online:

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Sony MZ-R55 User Manual
Sony MZ-R55 User Guide
Sony MZ-R55 Online Manual

Text of Sony MZ-R55 User Guide:

  • Sony MZ-R55, – 22 – Pin No. Pin name I/O Pin Description 56 AVSS — Ground terminal. 57 PDO — Not used (Open). 58 PCO O Decoder PLL master clock PLL phase comparison output. 59 FILI I Decoder PLL master clock PLL filter input. 60 FILO O Decoder PLL master clock PLL filter output. 61 CLTV I Decoder PLL master clock PLL VCO control voltage input. 62 PEAK I Inputs peak hold signal for light amount signal from RF amplifier (IC501). 63 BOTM I Inputs bottom hold signal for light amount signal from RF amplifier (IC501). 64 ABCD I Light amount signal from RF amplifier (IC501). 65 FE I Input focus error signal from RF amplifier (IC501). 66 AUX1 I Input of auxilia

  • Sony MZ-R55, – 20 – 2.65V ADJUSTMENT Connection : Adjustment Method : 1. Playback the test CD (TDYS-1). 2. Adjust RV901 so that the voltage between AP908 (2.65V) and AP906 (GND) is at 2.65 ± 0.03 Vdc. Adjustment Location : digital voltmete r MAIN board AP908 (2.65V) AP906 (GND) RV901 2.65V ADJUSTMENT AP906 (GND) AP908 (2.65V) IC802 CN801 – main board (side B) –

  • – 18 – LOW REFLECTION CD TRAVERSE ADJUSTMENT Connection : Adjustment Method : 1. Set the ser vo mode of the test mode (Mode : 000). 2. Press the ( ke y, and set the lo w reflection CD test adjustment mode (Mode : 040) using the VOLUME + or – ke y. 3. Inser t an y MO disk a vailab le on the market. 4. When the ( ke y is pressed, the lo w reflection CD FE balance adjustment mode

  • Sony MZ-R55, – 17 – SECTION 5 ELECTRICAL ADJUSTMENTS PRECAUTIONS FOR ADJUSTMENT 1) P erf orm all adjustments in the or der given in the test mode . After adjusting, e xit the test mode . 2) Use the f ollo wing tools and measuring instruments. • Test CD TDYS-1 (Par t No. : 4-963-646-01) • Recorded MO disk PTDM-1 (Par t No. : J-2501-054-A) • Laser po wer meter LPM-8001 (Par t No. : J-2501-046-A) • Oscilloscope (Frequenc y band abo ve 40 MHz. P erf orm the calibration of pr obe fir st bef ore measuring.) • Digital v oltmeter 3) Unless specified othe wis

  • Sony MZ-R55, – 62 – Sony Corporation Personal A&V Products Company 9-924-964-13 99B0492-1 Printed in Japan C1999. 2 Published by Quality Engineering Dept. (Shinagawa) MZ-R55 Ref. No. Part No. Description Remark R931 1-216-833-11 METAL CHIP 10K 5% 1/16W R933 1-216-789-11 METAL CHIP 2.2 5% 1/16W R934 1-216-789-11 METAL CHIP 2.2 5% 1/16W R935 1-216-827-11 METAL CHIP 3.3K 5% 1/16W R936 1-216-827-11 METAL CHIP 3.3K 5% 1/16W R937 1-216-827-11 METAL CHIP 3.3K 5% 1/16W R938 1-216-827-11 METAL CHIP 3.3K 5% 1/16W R939 1-216-837-11 METAL CHIP 22K 5% 1/16W R940 1-216-837-11 METAL CHIP 22K 5% 1/16W R941 1-216-817-11 METAL CHIP 470 5% 1/16W R942 1-216-817-1

  • Sony MZ-R55, – 12 – SECTION 4 TEST MODE 4-1. GENERAL This set pr ovides the Overall adjustment mode (Assy mode) that allo ws CD and MO disk to be automaticall y adjusted when in the test mode . In this Assy mode , the system discriminates between CD and MO disk and then automatically perform adjustments for them in sequence . If a fault is f ound, the system displa ys its loca- tion. Also, the Ser vo mode allo ws eac h individual adjustment to be automatically adjusted. 4-2. TEST MODE SETTING See page 5. 4-3. TEST MODE STRUCTURE Test mode 4-4. MANUAL MODE (1) Se

  • – 59 – Ref. No. Part No. Description Remark MISCELLANEOUS *************** 3 1-803-307-11 SWITCH MODULE 106 1-418-079-11 PR UNIT 115 1-671-605-11 MD FLEXIBLE BOARD ! 122 X-4950-546-1 SERVICE ASSY, OP LCD1 1-803-308-11 LCD MODULE M1 1-763-011-11 MOTOR (SPINDLE) (INCLUDING TURNTABLE) M2 1-763-174-11 MOTOR, DC (LOADING) M3 A-3311-972-A MOTOR BLOCK ASSY, SLED ************

  • – 22 – Pin No. Pin name I/O Pin Description 56 AVSS — Ground terminal. 57 PDO — Not used (Open). 58 PCO O Decoder PLL master clock PLL phase comparison output. 59 FILI I Decoder PLL master clock PLL filter input. 60 FILO O Decoder PLL master clock PLL filter output. 61 CLTV I Decoder PLL master clock PLL VCO control voltage input. 62 PEAK I Inputs peak hold signal for light amount signal

  • Sony MZ-R55, – 5 – SECTION 2 SELF-DIAGNOSTIC 2-1. GENERAL This set uses the self-diagnostic system in which if an error occurs in playback/recording mode, the error is detected by the model control and power control blocks of the microprocessor and infor- mation on the cause is stored as history in EEPROM. By viewing this history in test mode, it helps you to analyze a fault and determine its location. 2-2. TEST MODE SETTING There are two different methods to set the test mode: 1 Short BP801 (TEST) on the main board with

  • – 52 – 7-2. CHASSIS SECTION Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 51 52 53 54 55 56 57 58 59 60 61 62 63 53 55 62 MT-MZR55-161 51 X-4950-398-1 BELT ASSY, ORNAMENTAL 52 4-212-844-01 BUTTON (OPEN) (GOLD) 52 4-212-844-11 BUTTON (OPEN) (SILVER) ... (for BLUE, YELLOW) 53 4-212-820-01 DAMPER 54 X-4950-396-1 CHASSIS (MAIN) ASSY 55 4-212-821-01 SCREW (MD), STEP

  • – 40 – – 41 – – 42 – MZ-R55 6-8. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) — • Refer to page 46 for IC Block Diagrams. (Page 39) (Page 39) (Page 39) (Page 44) (Page 39) (Page 39) (Page 44) 5 6 IC802 $º 2.3Vp-p VOLT/DIV : 0.1V AC TIME/DIV : 10µsec IC805 8 1.4Vp-p • Waveforms 12kHz 32kHz VOLT/DIV : 1V AC TIME/DIV : 20nsec (Page 45) Note: • All capacitors are in µF unless

  • Sony MZ-R55, – 21 – Pin No. Pin name I/O Pin Description 1 MNT 0 O Traverse count signal output. 2 MNT 1 O Track jump detect output. 3 MNT 2 — Not used (Open). 4 MNT 3 — Focus OK signal output. 5 SWDT I Inputs write data signal from system controller (IC802). 6 SCLK I Inputs serial clock signal from system controller (IC802). 7 XLAT I Inputs serial latch signal from system controller (IC802). 8 SRDT O Outputs write data signal to system controller (IC802). 9 SENS O Outputs internal status (SENS) to system controller (IC802). 10 XRST I Inputs reset signal from system controller (IC802). L : Reset 11 SQSY

  • Sony MZ-R55, OVER WRITE HEAD DRIVE Q601, 602 OVER WRITE HEAD 10 14 16 17 11 EFM LOGIC MODE1 MODE2 REC DRIVE IC602 RF AMP IC501 EFM/ ACIRC ENCODER/ DECODER SHOCK PROOF MEMORY CONTROL 4 5 21 22 6 • 11 • 14 | 19 2 • 3 • 22 • 23 XWE XRAS XCAS XOE D0-D3 SDTI LRCK BCK MCLK SDTO DIN XRST PWM COMP DRAM IC509 DIGITAL AUDIO IN 38 1 2 3 33 37 36 RF AGC/ EQ AUX SW ABCD AMP FOCUS ERROR AMP PEAK/ BOTTOM RF AMP 8 9 10 11 19 I-V CONV. APC I-V CONV. RF AUX PEAK BTM 26 28 16 17 18 12 20 TRACKING ERROR AMP TE SE SWDT SCLK XLAT APCREF FO CONT 34 FE 354 5 6 7 ABCD AI AMP 32 ADFG XSTB VCVC Q503 (1/2) Q503 (2/2) 74 73 82 81 80 83 79 FO C

  • Sony MZ-R55, – 1 – MICROFILM MZ-R55 SERVICE MANUAL PORTABLE MINIDISC RECORDER SPECIFICATIONS E Model Tourist Model Model Name Using Similar Mechanism NEW MD Mechanism Type MT-MZR55-161 Optical Pick-up Type KMS-280A US and foreign parts licensed Dolby Laboratories Licensing Corporation. System Audio playing system MiniDisc digital audio system Laser diode properties Material: GaAlAs Wavelength: λ = 780 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 sur

  • Sony MZ-R55, – 43 – – 44 – – 45 – MZ-R55 6-9. SCHEMATIC DIAGRAM — MAIN SECTION (3/3) — • Refer to page 46 for IC Block Diagrams. (Page 39) (Page 42) (Page 40) (Page 42)(Page 39) (Page 39) Note: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. • All resistors are in Ω and 1 / 4 W or less unless otherwise specified. • % : indicates tolerance. • C : panel designation. • A : B+ Line. • Power voltage is dc 3 V and fed

  • Sony MZ-R55, – 10 – 3-7. CHASSIS (MAIN) ASSY 3-8. OP BLOCK ASSY 1 step screw (MD) 2 step screw (MD) 4 chassis (MAIN) assy 3 1 M1.4x3.0 over head block assy lens 2 main shaft 4 OP block assy 3 flexible board

  • Sony MZ-R55, – 60 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MAINMAIN Q503 8-729-930-13 TRANSISTOR UMH2 Q601 8-729-046-43 TRANSISTOR HAT2051T-EL Q602 8-729-046-42 TRANSISTOR HAT2050T-EL Q701 8-729-028-91 TRANSISTOR DTA144EUA-T106 Q801 8-729-028-91 TRANSISTOR DTA144EUA-T106 Q802 8-729-041-51 TRANSISTOR FMMT617TA Q803 8-729-905-35 TRANSISTOR 2SC4081-R Q804 8-729-046-48 TRANSISTOR FDV303N Q901 8-729-046-49 TRANSISTOR FDV304P Q902 8-729-905-35 TRANSISTOR 2SC4081-R Q903 8-729-047-10 TRANSISTOR FZT688BTC Q904 8-729-046-50 TRANSISTOR NDH8303N Q906 8-729-046-45 T

  • Sony MZ-R55, – 16 – * For the mode n umber s of 039 and 057, if the f ocus bias v alue is NG, the f ollo wing displa y is repeated: CDmode NG 55 30 Focus bias value Mode No. CDmode NG 77 01 Error code (01 to 04) Meaning of focus bias While P ke y is being depressed * For the mode n umber s of 039 and 061, if the At err or rate is NG, the f ollo wing displa y is repeated: CDmode NG 39 03 At error value Mode No. (lower two digits) 7. If NG, set the ser vo mode . P erf orm automatic adjustment f or the

  • Sony MZ-R55, – 15 – • Clock Operation Check 1. For the mode No. of 221, operation c hec k is perf ormed. It is determined as OK if at 11 years, 11 months, 11 days, 11 hour s, 11 min utes and 11 seconds or not the default v alue . 2. For the mode No. of 221, pressing P ke y will c lear the resume data stored in EEPR OM and initializ e the c loc k data. Note) The c loc k should be set when the o verall adjustment mode is completed as OK. The write data is to be at 11 y ear s, No vember 11 da ys, 11 hour s, 11 min utes and 11 seconds. (4) Power Mode M

  • Sony MZ-R55, – 16 – * For the mode n umber s of 039 and 057, if the f ocus bias v alue is NG, the f ollo wing displa y is repeated: CDmode NG 55 30 Focus bias value Mode No. CDmode NG 77 01 Error code (01 to 04) Meaning of focus bias While P ke y is being depressed * For the mode n umber s of 039 and 061, if the At err or rate is NG, the f ollo wing displa y is repeated: CDmode NG 39 03 At error value Mode No. (lower two digits) 7. If NG, set the ser vo mode . P erf orm automatic adjustment f or the items not accepted (see the ser vo mode). 8. Insert a MO disk. 9. Press ( ke y. The system discriminates between CD and MO and p

  • Sony MZ-R55, – 12 – SECTION 4 TEST MODE 4-1. GENERAL This set provides the Overall adjustment mode (Assy mode) that allows CD and MO disk to be automatically adjusted when in the test mode. In this Assy mode, the system discriminates between CD and MO disk and then automatically perform adjustments for them in sequence. If a fault is found, the system displays its loca- tion. Also, the Servo mode allows each individual adjustment to be automatically adjusted. 4-2. TEST MODE SETTING See page 5. 4-3. TEST MODE STRUCTURE Test mode 4-4. MANUAL MODE (1) Servo Mode • Ho

  • Sony MZ-R55, – 27 – – 28 – MZ-R55 6-3. BLOCK DIAGRAM — AUDIO SECTION — (Page 29) AUDIO I/F CONTROL ADC DAC RCH RCH CDTI CDTO CLOCK KCS PD 4 2 3 5 1 46 15 14 13 12 47 29 25 26 44 A/D, D/A CONVERTER IC301 41 7 5 6 MIC AMP IC302 2 MIC AMP IC304 MIC ATT Q301 MIC 2.5V HIGH LOW S301 MIC SENS 17 16 21 23 LINE/HP AMP IC303 9 4 6 3 5 MIC2.5V 2.7V R-CH R-CH R-CH MUTE VCOM 81 93 94 66 67 68 24 91 11 49 RVCC (+2.8V) Q804 SYSCON SECTION B KEYRMC OPT CONT AMUTE BEEP XJACK DET OPT DET XMIC DET XLINE DET KEY ONCLK CS XCSNV SDO2 SDI2 SCK 2 XCS ADA XPD ADA DTCK KEY RMC 90 89 7 5 6 96 1 SYSTEM CONTROL IC802 1 3 4 2 CS DO DI SCK NV RAM I

  • Sony MZ-R55, – 14 – Unit LCD display AUDIO XX XX Adjustment value (the data can be changed/ written when flashing.) Mode No. (The lower two digits are indicated. Three digits are indicated on the remote controller LCD. ) 3. Press the ke ys belo w to c hang e the mode n umber . ( : Increases the one place. p : Sets the one place to 0. This ke y brings the ten place to 0 if the one place is 0. VOLUME + : Increases the ten place by 10 if the one place is 0. Increases the adjustment v alue if the one place is non-zero. VOLUME – : Decreases the ten place by 10 if the one place is 0. Decreases the adjustment v alue if the one place is non-zero. • How to Adjust in the Audio Mode 1. When

  • Sony MZ-R55, – 23 – – 24 – Pin No. Pin name I/O Pin Description 1 CLKCS O Chip select output to real time clock (IC805). 2 XRST O Reset output. L : Reset 3 WRPWR O Laser power switching signal output. 4 TX O Write data transfer timing output. 5 SDI2 I Serial data input. 6 SDO2 O Serial data output. 7 SCK2 O Serial clock output. 8 XRF-STBY O Power control output to RF amplifier (IC501). 9 SSB I/O SSB data signal input and output. 10 SSB SCK I/O SSB clock signal input and output. (Not used (Open).) 11 DTCK I/O Remote control data signal input/output. 12 SPCK — Not used (Open). 13 WP I Wake-up signal input from remote control key and this unit key. 14 OPEN I Detecting switch for open

  • Sony MZ-R55, – 23 – – 24 – Pin No. Pin name I/O Pin Description 1 CLKCS O Chip select output to real time clock (IC805). 2 XRST O Reset output. L : Reset 3 WRPWR O Laser power switching signal output. 4 TX O Write data transfer timing output. 5 SDI2 I Serial data input. 6 SDO2 O Serial data output. 7 SCK2 O Serial clock output. 8 XRF-STBY O Power control output to RF amplifier (IC501). 9 SSB I/O SSB data signal input and output. 10 SSB SCK I/O SSB clock signal input and output. (Not used (Open).) 11 DTCK I/O Remote control data signa

  • Sony MZ-R55, – 16 – * For the mode numbers of 039 and 057, if the focus bias value is NG, the following display is repeated: CDmode NG 55 30 Focus bias value Mode No. CDmode NG 77 01 Error code (01 to 04) Meaning of focus bias While P key is being depressed * For the mode numbers of 039 and 061, if the At error rate is NG, the following display is repeated: CDmode NG 39 03 At error value Mode No. (lower two digits) 7. If NG, set the servo mode. Perform automatic adjustment for the items not accepted (see the servo mode). 8. Insert a MO disk. 9. Press ( key. The system discriminates between CD and MO and performs automatic adjustment for the MO disk

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