sony_MZ-E80_service_manual 维修电路图.pdf

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1、MICROFILM SERVICE MANUAL PORTABLE MINIDISC PLAYER E Model Tourist Model Model Name Using Similar MechanismMZ-E55 Mechanism TypeMT-MZE55-150 Optical Pick-Up NameODX-1B SPECIFICATIONS MZ-E80 US and foreign patents licensed from Dolby Laboratories Licensing Corporation. Photo: Silver Ver 1.1 2000. 05 W

2、ith SUPPLEMENT-1 (9-927-132-82) 收音机爱好者资料库 Ra d i o Fa n s .CN 2 TABLE OF CONTENTS 1.SERVICING NOTES.2 2.GENERAL.3 3.DISASSEMBLY.4 4.TEST MODE.6 5.ELECTRICAL ADJUSTMENTS. 10 6.DIAGRAMS 6-1.Block Diagram . 11 6-2.Printed Wiring Boards . 16 6-3.Schematic Diagram . 19 6-4.IC Pin Function Description . 2

3、8 7.EXPLODED VIEWS. 35 8.ELECTRICAL PARTS LIST. 37 Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C dur- ing 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

4、when soldering or unsoldering. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam- aged by heat. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIA

5、GRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may resu

6、lt in hazardous ra- diation exposure. SECTION 1 SERVICING NOTES This MiniDisc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the bottom exterior. Removing the mechanism deck causes this set to be disabled during a repair with the power supplied to the

7、set. Therefore, lock convex portion of open/close detect switch (S801) during a repair. Replacement of CXD2663GA (IC601) used in this set requires a special tool. Therefore, it cannot be replaced. Mechanism deck section Open/close detect switch (S801) 收音机爱好者资料库 Ra d i o Fa n s .CN 3 SECTION 2 GENERA

8、L 1OPERATE indicator 2HOLD switch 3DIGITAL MEGABASS switch 4AVLS switch 5Battery cover 6VOLUME +/ buttons 7MD operate buttons +/” ( FF PLAY ) = (REW ) p (STOP) 8External battery terminal (+/) 9OPEN switch ! 2 REMOTE jack 1Headphone 2MD operate switch ”/+ (PLAY FF) = (REW) 3VOL +/ buttons 4Display wi

9、ndow 5DISPLAY button 6PLAYMODE button 7P (PAUSE) button 8HOLD c switch 9p (STOP) button 8 7 6 5 4 3 2 1 0 9 8765 4 321 9 LOCATION OF CONTROLS Main Unit Remote commander with headphone 收音机爱好者资料库 Ra d i o Fa n s .CN 4 UPPER LID ASSY MECHANISM DECK SECTION (MT-MZE55-150) Note: Follow the disassembly pr

10、ocedure in the numerical order given. SECTION 3 DISASSEMBLY SetUpper lid assyMechanism deck section (MT-MZE55-150) SW boardMain Board, Audio board Optical pick-up section This set can be disassembled in the order shown below. 5two screws (M1.4 1.6) 6fulcrum plate (L) assy main section 7upper lid ass

11、y 1knob (open) 2 4screw (M1.4 1.3) 3lid (battery case) 1screw (B1.4 3) 1two screws (B1.4 2.3) 2Open slider assy main board main section 5mechanism deck section 4flexible board (CN501) 3flexible board (CN551) 5 MAIN BOARD, AUDIO BOARD OPTICAL PICK-UP SECTION 8main board 5bracket 4screw (B1.4 2.5) 4sc

12、rew (B1.4 2.3) 9audio board*1 1claw 2lid (battery case) 3 battery case 6screw (1.4 3) 7fulcrum plate (R) assy bottom panel assy 6screw (1.4 2) 3SW board 2flexible board 1caution label*2 battery case main board *1 Note: In removing the Audio board, raise the connector section uprightly. *2 Note: If t

13、he SW board or flexible board is removed, the caution label (4-213-092-01) on the flex- ible board will be defaced or deformed, and replace it with a new label. 2flexible board 4optical pick-up section 3screw (M1.4 2.5) chassis assy 1flexible board adhesive sheet SW BOARD 6 1 0 0 V 1 . 0 0 0 ROM ver

14、sion display SHUF LCD on remote commander SECTION 4 TEST MODE Outline In this set, overall adjustment mode is made available by enter- ing test mode to perform automatic adjustment of CD and MO. In the overall adjustment mode, the disc is determined whether it is CD or MO and adjustments are perform

15、ed in sequence. If a fault is found, the location of the fault is displayed. Also, in servo mode, each adjustment can be automatically made. Operation in the test mode is performed with the remote com- mander. A key having no particular description in the text, indi- cates a remote commander key. Se

16、tting the Test Mode To enter the test mode, two methods are available : 1.Entering method with key input. Turn on the HOLD switch on the set. While pressing the p key on the set, press the following remote commander keys in the following order : ”/+ n ”/+ n = n = n ”/+ n = n ”/+ n = n P n P 2.Enteri

17、ng method by shorting the test point Solder bridge the test point TAP805 (TEST) on the MAIN board (connect IC801 pin # to GND), and turn on the power. MAIN BOARD (Conductor side) Releasing the Test Mode A test mode releasing method varies depending on the test mode setting method. 1.When test mode w

18、as entered with key input, turn off the power. 2.When test mode was entered by shorting the test point, turn off the power and open the solder bridge of TAP805 (TEST MODE) on the MAIN board. Operation of Setting on Test Mode When the test mode is set, the LCD displays the following : The cycle - the

19、 above ROM version display n All lit n All off - is repeated. When the PLAYMODE key is pressed and hold down, the dis- play at that time is held so that display can be checked. Test mode Short: Test mode Open: Normal mode () ”/+ key ”/+ key p key p key p key p key VOL + key VOL key (044 Start?) Over

20、all adjustment mode (044 Auto?) Adjustment mode (044 Manu?) Servo mode 0 0 0 Audio mode 1 0 0 Power mode 3 0 0 VOL +/ keys VOL +/ keys Display when test mode is set VOL +/ keys Displays of the LCD on the remote commander are shown in parenthesis. Configuration of Test Mode The test mode has the conf

21、iguration given below. Servo Mode Set the test mode, press the VOL key and use the ”/+ key to set the servo mode. When the servo mode is set, use the +/” key and the = key on the set to move the optical pick-up to the outer circum- ference and to the inner circumference respectively. When entering a

22、nother mode, refer to the configuration of test mode. 1.Structure of Servo Mode Servo mode 0 0 0 Offset adjustment 0 1 0 Laser power adjustment 0 2 0 011 to 014? *1 021 to 024? *1 231 p key p key p key p key ”/+ key ”/+ key ”/+ key ”/+ key ”/+ key VOL +/ keys VOL +/ keys (See page 7.) *1 Repeatedly

23、press ”/+ key to change the mode. (Refer to the following list for a description of each mode.) 7 (See page 6.) p key p key p key p key MO adjustment 0 3 0 031 to 039? 03a to 03f? *1 p key p key CD adjustment 0 5 0 051 to 059? 05a to 05f *1 p key p key Sled movement 0 6 0 061 , 062? *1 ”/+ key 041 t

24、o 048? *1 ”/+ key Low reflection CD adjustment 0 4 0 p key p key p key p key VOL +/ keys VOL +/ keys VOL +/ keys VOL +/ keys VOL +/ keys VOL +/ keys NV relation 0 9 0 091 to 093? *1 ”/+ key ”/+ key ”/+ key ”/+ key ”/+ key ”/+ key ”/+ key 071 to 074? *1 ”/+ key Automatic adjustment 0 7 0 231 Retern t

25、he Offset adjustment (0 1 0) *1 : Repeatedly press ”/+ key to change the mode. (Refer to the following list for a description of each mode.) 2.Description of Each Mode 010 Offset adjustment ModeDescription 011VC offset, FE offset, ABCD offset 012Not used 013Not used 014Not used 020 Laser power adjus

26、tment ModeDescription 021MO power (GRV) 022MO power (LPIT) 023CD power (HPIT) 024Not used 030 MO adjustment ModeDescription 031MO EF balance 032MO tracking offset 033MO ABCD gain 034MO focus gain 035MO tracking gain 036MO focus bias 037 038 039 (03a) (03b) (03c) (03d)Not used (03e)Not used (03f)Not

27、used 040 Lower reflection CD adjustment ModeDescription 041Lower reflection CD EF balance 042Lower reflection CD tracking offset 043Lower reflection CD ABCD gain 044Lower reflection CD focus gain 045Lower reflection CD tracking gain 046Lower reflection CD focus bias 047 048Not used 8 050 CD adjustme

28、nt ModeDescription 051CD EF balance 052CD tracking offset 053CD ABCD gain 054CD focus gain 055CD tracking gain 056CD focus bias 057 058 059 (05a) (05b) (05c) (05d)Not used (05e)Not used (05f)Nor used 060 Sled movement ModeDescription 061Sled in 062Sled out 070 Automatic adjustment ModeDescription 07

29、1Focus search 072Access 32 073Not used 074Not used 090 NV relation ModeDescription 091NV clear 092Power OFF 093Function code change Note: The parenthesizal mode numbers in table are not displayed on the LCD of remote commander. Audio Mode Enter the test mode and press the VOL key. Then, press the ”/

30、+ key and the VOL + key in this turn to enter audio mode. When entering another mode, refer to the configuration of test mode. 1.Structure of Audio Mode Audio mode 1 0 0 Audio playback test 1 1 0 3 kHz Beep sound 1 1 1 p key p key ”/+ key ”/+ key ”/+ key 9 Power mode 3 0 0 UNREG check 31 0 Power OFF

31、 3 1 1 p key p key ”/+ key ”/+ key ”/+ key 044Auto? Start ? CD automatic adjustment MO automatic adjustment OK NG OK NG Overall adjustment mode Auto? Adjustment mode Manu ? p key p key p key p key ”/+ key (to discriminate between CD and MO) ”/+ key Power Mode Enter the test mode and press the VOL ke

32、y. Then, press the ”/ + key and the VOL key in this turn to enter power mode. When entering another mode, refer to the configuration of test mode. 1.Structure of Power Mode Overall Adjustment Mode Enter the test mode and press the VOL + key to enter overall adjustment mode. When entering another mod

33、e, refer to the configuration of test mode. When the overall adjustment mode is entered, the LCD on the remote commander display the following : 1.Structure of Overall Adjustment Mode 10 SECTION 5 ELECTRICAL ADJUSTMENTS Notes for Adjustment In this set, automatic adjustment of CD and MO can be per-

34、formed by entering the test mode. (See page 6) Adjustments are performed in the overall adjustment mode. If an item is determined as NG, the item is readjusted in servo mode. Adjustment Method in Overall Adjustment Mode 1.Enter the test mode and press the VOL + key to enter overall adjustment mode.

35、2.Insert the CD test disc TDYS-1 (Parts No. 4-963-646-01) or SONY MO disc (recorded) commercially available. 3.Press the ”/+ key. The disc is determined whether it is CD or MO and each adjustment mode is set. Automatic adjust- ments are performed in the order of the items listed below. In CD Automat

36、ic adjustment Mode No.ModeDescription 1061Sled in 2062Sled out 3071Focus search 4051CD EF balance 5053CD ABCD gain 6051CD EF balance 7052CD tracking offset 8054CD focus gain 9055CD tracking gain 10056CD focus bias In MO Automatic adjustment Mode No.ModeDescription 1061Sled in 2062Sled out 3071Focus

37、search 4031MO EF balance 5033MO ABCD gain 6031MO EF balance 7032MO tracking offset 8034MO focus gain 9035MO tracking gain 10036MO focus bias * Remote commander display during automatic adjustment 4.If result of automatic adjustment is OK, the following display appears. 5.If result of automatic adjus

38、tment is NG, the following display appears. * If NG, enter servo mode to perform automatic adjustment of the item determined as NG. Adjustment in Servo Mode Method 1.When each adjustment mode is set according to the structure of servo mode, the lower two digits of the mode No. and the adjustment val

39、ue written in EEPROM are displayed and lit on the LCD on the remote commander. (See page 6) 2.When the P key is pressed, the following display appears and the automatic adjustment is performed. Note: Although the VOL +/ keys can be used to change the adjust- ment value to any value, they should not

40、be used whenever possible. 3.When the automatic adjustment is completed, the flashing ad- justment value is lit. 055? Adjustment value (flashing) Mode No. under adjustment 056? End-OK ? 052 ? NG ? Error code NG mode No. 052? Adjustment value (lit) Mode No. 052? Adjustment value (flashing) 052? Adjus

41、tment value (lit) MZ-E80 BRUSHLESS MOTOR CONTROL F CB DA E IJ J I B A C D E F DETECTOR 1 2 J I 4 5 6 7 A B C D 8 9 E F LDPD LASER DIODE ILCC PD OPTICAL PICK-UP (ODX-1B) AUTOMATIC POWER CONTROL Q502 LASER ON SWITCH Q501, 503 11 10 APC PD LD/PD AMP APCREF I-V AMP I-V AMP AT AMP B.P.F.2930 WBL ADFMADIN

42、 32 ADFG ABCD AMP FOCUS ERROR AMP TRACKING ERROR AMP 35 34 26 28 ABCD FE TE SE V-I CONVERTER 20 F0CNT WBL 3T EQ SERIAL/ PARALLEL CONVERTER, DECODER COMMAND 171618 SWDT SCLK XLAT RF AMP B.P.F. 46 RFO 40 RF AGC & EQ AGCI EQ 38 RF RF AMP, FOCUS/TRACKING ERROR AMP IC501 TEMP 4847 MORFO MORFI 3T PEAK & B

43、OTTOM WBL 33 AUX 37 PEAK 36 BOTM PLL FILTER 81 80 83 82 FILI PCO CLTV FILO 74 75 78 ASYO ASYI RFI ADIP DEMODULATOR/ DECODER 99 ADFG SUBCODE PROCESSOR D/A CONVERTER LOW-PASS FILTER DIGITAL AUDIO INTERFACE DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF

44、 MEMORY CONTROLLER, ATRAC ENCODER/DECODER, D/A CONVERTER, /16M BIT D-RAM IC601 INTERNAL BUS D-RAM CPU INTERFACE MONITOR CONTROL 13 SQSY 16 XINT 11 10678 SENS SRDT SWDT SCLK XLAT 2345 MNT0 MNT1 MNT2 MNT3 64 - 6747 52, 55 59, 70 D0 D3A00 A11 71 72 60 63 XOE XWE XRAS XCAS 12 SIGNAL PATH : PLAYBACK COMP

45、A- RATOR EFM/ACIRC ENCODER/DECODER SHOCK PROOF MEMORY CONTROLLER ATRAC ENCODER/DECODER SLED MOTOR CONTROL Q551,552 UNREG B+ 30 P02 28 P01 DC/DC DRIVE DC/DC DRIVE 33 32 P12 P11 24205240 VM4 VM2 VD VD2 TRACKING COIL DRIVE 43 45 60 59 F13 R13 FOCUS COIL DRIVE 49 47 57 58 F11 R11 SLED MOTOR DRIVE1 53 51

46、 55 56 F12 R12 SLED MOTOR DRIVE2 39 41 62 61 F14 R14 2-AXIS DEVICE (TRACKING) (FOCUS) TRK FCS+ FCS SPINDLE MOTOR DRIVE 21 23 25 36 35 HIU HIV 34 HIW SLEEP UP/DOWN /POWER SW DECODER 71 63 72 1NOTE 18 17 16 OE PWM D1 HOW HOV HOU R04 F04 R02 F02 R01 F01 R03 F03 FOCUS/TRACKING COIL DRIVE, SPINDLE/SLED M

47、OTOR DRIVE IC551 88 84 85 86 87 96 95 ANALOG MUX A/D CONVERTER 103 104 105 102 117 118 106 110 109 111 112 114 115 142 141 124 133 134 135 140 AUTO SEQUENCOR SPINDLE SERVO PWM GENERATOR 127 128 129 130 131 132 138 139 DIGITAL SERVO SIGNAL PROCESS 113 45 46 47 38 39 42 24 37 1 BGR 19 TRACKING VOLTAGE MONITOR IC502 27 28 52 6566 64 6756 57 58 69 EEPROM IC802 976 75 74 73 71234 PE CS BK DI DO 20 19OSCILLATOR CELL 27 24 34 38 45 43 46 42 33312351293017 168 S804-808 44 69 6 68 34 63 7 71 70 60 21 22 15BEEP 24 23 2 4 17 1813 HEADPHONE AMP IC301 INB INA BEEP IN