SONY mz-e33 维修电路图.pdf

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1、MZ-E33 SERVICE MANUAL PORTABLE MINIDISC PLAYER SPECIFICATIONS US Model Canadian Model AEP Model E Model Model Name Using Similar MechanismMZ-E55 MD Mechanism TypeMT-MZE55-150 Optical Pick-up Mechanism TypeODX-1A/1B US and foreign patents licensed from Dolby Laboratories Licensing Corporation. System

2、 Audio playing system MiniDisc digital audio system Laser diode properties Material : GaAlAs Wavelength : =790 nm Emission duration : continuous Laser output : less than 44.6 W* * This output is the value measured at a distance of 200 mm from the objective lens surface on the optical pick-up block w

3、ith 7 mm aperture. Revolutions 400 rpm to 900 rpm (CLV) Error correction Advanced Cross Interleave Reed Solomon Code (ACIRC) Sampling frequency 44.1kHz Coding Adaptive TRansform Acoustic Coding (ATRAC) Modulation system EFM (Eight to Fourteen Modulation) Number of channels 2 stereo channels 1 monaur

4、al channel Frequency response 20 to 20,000 Hz 3 dB Wow and Flutter Below measurable limit Outputs Headphones : stereo mini-jack, maximum output level 5mW+5mW, load impedance 16 ohm General Power requirements One LR6 (size AA) alkaline battery (not supplied) Ni-MH rechargeable battery NH-9WM/NH-14WM

5、(not supplied) R-6 sized Ni-MH rechargeable battery NH-MDAA (supplied) Sony AC Power Adaptor AC-MZR55 (supplied) connected at the DC IN 3V jack Battery operation time BatteriesPlayback LR6 (SG) (size AA)Approx. 9.5 hours Sony alkaline battery R-6 sized Ni-MHApprox. 8 hours rechargeable battery NH-MD

6、AA Chewing gum typeApprox. 7 hours Ni-MH rechargeable battery NH-14WM Chewing gum typeApprox. 6.5 hours Ni-MH rechargeable battery NH-9WM (N) Dimensions Approx. 80 17.3 92 mm (w/h/d) (3 1/4 11/16 3 5/8 in.) not including projecting parts and controls MICROFILM Continued on next page Ver 1.1 1999. 01

7、 收音机爱好者资料库 Ra d i o Fa n s .CN 2 1.SERVICING NOTE. 3 2.GENERAL. 4 3.DISASSEMBLY 3-1. Bottom Panel Assy . 5 3-2. Upper Panel Assy . 5 3-3. Main Board . 6 3-4. MD Assy . 6 3-5. OP Service Assy. 6 4.TEST MODE. 7 5.ELECTRICAL ADJUSTMENTS. 11 6.DIAGRAMS 6-1. IC Pin Description. 13 6-2. Block Diagram . 15

8、 6-3. Printed Wiring Board . 18 6-4. Schematic Diagram . 21 7.EXPLODED VIEWS 7-1. Panel Section . 29 7-2. Main Board Section . 30 7-3. Mechanism Deck Section. 31 8.ELECTRICAL PARTS LIST. 32 TABLE OF CONTENTS Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270C duri

9、ng 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 disconnected chip component. Notice that the minus side of a tant

10、alum capacitor may be dam- aged by heat. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY DIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY NATURE, OR LOSSES O

11、R EXPENSES RESULTING FROM ANY DEFECTIVE PRODUCT OR THE USE OF ANY PRODUCT. “MD WALKMAN” is a trademark of Sony Corporation. This MiniDisc player is classi- fied as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the bottom exterior. Mass Approx. 113 g (4.0 oz.) the player only

12、 Approx. 155 g (5.5 oz.) incl. a premastered MD and a Sony alkaline LR6 (SG) battery Supplied accessories AC power adaptor AC-MZR55 (1) R-6 sized Ni-MH rechargeable battery NH-MDAA (1) Rechargeable battery carrying case (1) Headphones with a remote control MDR-A34SP + RM-MZE33 (1) (US model) MDR-E80

13、5SP + RM-MZE33 (1) (Canadian, AEP, E model) MDR-E838SP + RM-MZE33 (1) (Hong Kong model) Carrying pouch (1) Design and specifications are subject to change without notice. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE

14、 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 PUBLISHED BY SONY. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHMATIQUES ET LA L

15、ISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. 收音机爱好者资料库 Ra d i o Fa n s .CN 3 SECTION 1 SERVICING NOTE 1. When repairing this device with the power o

16、n, if you remo ve the main board, this de vice stops working. In this case, you w ork without the device stopping by fastening the hook of the DOOR OPEN/CLOSE switch (S801) with tape. S801 2. The electrical components differ accor ding to the version of the system control IC (IC801). When replacing

17、the IC801, chec k its model name and add or remo ve D1001 and/or R1001 as shown belo w. For detailed information, see the Printed Wiring Boar d on pa ge 18 and the Schematic Diagram on page 21. RU6815MF-0004 (V er. 3.0) . Add D1001 and R1001 RU6815MF-0005 (V er. 3.2) and later . Remo ve D1001 and R1

18、001 收音机爱好者资料库 Ra d i o Fa n s .CN 4 SECTION 2 GENERAL This section is extracted from instruction manual. 5 SECTION 3 DISASSEMBLY 3-1. BOTTOM PANEL ASSY Note : When installing, fit the knobs and switches. 3-2. UPPER PANEL ASSY The equipment can be removed using the following procedure. Bottom panel a

19、ssyMain board Upper panel assyMain boardMD assyOP service assy Note : Follow the disassembly procedure in the numerical order given. 1 precision pan screw (M1.4) 2 precision pan screw (M1.4) 3 precision pan screw (M1.4) 4 bottom panel assy knobs switches 2 precision pan screw (M1.4) 4 upper panel as

20、sy 3 precision pan screw (M1.4) 1 button (OPEN) 6 3-5. OP SERVICE ASSY3-4. MD ASSY 1 claw 2 claw 3 MD assy 1 precision screw 3 main shaft 2 OP service assy 3-3. MAIN BOARD 5 toothed lock screw 3 precision pan screw (M1.4) 4 step screw (MD) 2 precision pan screw (M1.4) 1 battery case lid 9 MAIN board

21、 6 7 CN501 8 CN551 7 Servo mode 0 0 0 Offset adjustment 0 1 0 Laser power adjustment 0 2 0 011 to 013? *1 021 to 024? *1 231 p key p key p key p key ” key ” key ” key ” key ” key +, keys+, keys (See page 8) *1 Repeatedly press ” key to change the mode. (Refer to the following list for a description

22、of each mode.) ” key ” key p key p key p key p key VOL + key VOL key (Start ?) Overall adjustment mode (Auto?) Adjustment mode (Manu ?) Servo mode 0 0 0 Audio mode 1 0 0 Servo mode 3 0 0 +, keys +, keys +, keys Display when test mode is set Displays of the LCD on the remote commander are shown in pa

23、rentheses. V 1 . 0 0 0 ROM version display LCD on remote commander SECTION 4 TEST MODE Outline In this set, overall adjustment mode is made availab le 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

24、and adjustments are performed in sequence. If a fault is f ound, the location of the fault is displayed. Also, in ser vo mode, each adjustment can be automatically made. Setting the Test Mode To enter the test mode, two methods are availab le : 1. Entering method with key input. Turn off the HOLD sw

25、itch on the set. While holding down 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. Entering method by shorting the test point Solder bridge the test point TAP801 (TEST) on the main board (connect IC801 pin # to GND),

26、and turn on the POWER. Releasing the Test Mode 1. When test mode was entered with key input, turn off the POWER. 2. When test mode was entered by shor ting the test point, turn off the PO WER and open the solder bridge of TAP801 (TEST MODE) on the main board. Operation of Setting on Test Mode When t

27、he test mode is set, the LCD displays the following : The c ycle - the abo ve ROM version display n All lit n All off - is repeated. (The ROM version is constantly displayed.) When the PLA Y MODE key is pressed and hold down, the dis- play at that time is held so that display can be checked. Configu

28、ration of Test Mode The test mode has the configuration given below. Servo Mode Set the test mode, press the VOL ke y and use the ” key to set the ser vo mode . When the servo mode is set, use the + key and the = key to move the optical pick-up to the outer circumference and to the inner cir cumf er

29、ence respectively. When entering another mode, refer to the configuration of test mode. 1. Structure of Servo Mode IC801 TAP801 RB801 TP808 Test mode Short : Test mode Open : Normal mode TP819 TP911 C805 C807 C806R810 R811 R808 8 (See page 7.) p key p key p key p key +, keys MO adjustment 0 3 0 031

30、to 039? *1 ” key p key p key +, keys CD adjustment 0 5 0 051 to 058? *1 ” key p key p key +, keys Sled movement 0 6 0 061 , 062? *1 ” key +, keys 041 to 048? *1 ” key Low reflection CD adjustment 0 4 0 p key p key p key p key +, keys NV relation 0 9 0 091, 092, 093? *1 ” key ” key ” key ” key ” key

31、” key ” key +, keys 071, 072, 073, 074? *1 ” key Automatic adjustment 0 7 0 231 Retern the 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 011FE o

32、ffset 012TE offset 013All servo ON 020 Laser power adjustment ModeDescription 021MO power A 022MO power E 023CDL power 024CD power 030 MO adjustment ModeDescription 031MO FE balance 032MO FE gain 033MO ABCD gain 034MO focus gain 035MO tracking gain 036MO RF gain 037MO ADIP gain 038MO focus bias E 03

33、9CD focus bias A 040 Lower reflection CD adjustment ModeDescription 041Lower reflection CD FE balance 042Lower reflection CD FE gain 043Lower reflection CD ABCD gain 044Lower reflection CD focus gain 045Lower reflection CD tracking gain 046Lower reflection CD RF offset 047Lower reflection CD RF gain

34、 048Lower reflection CD focus bias 050 CD adjustment ModeDescription 051CD FE balance 052CD FE gain 053CD ABCD gain 054CD focus gain 055CD tracking gain 056CD RF offset 057CD RF gain 058CD focus bias 9 Audio mode 1 0 0 Audio playback test 1 1 0 1kHz 0dB L/R 1 1 1 Infinity Zero 1 1 2 12dB 12dB 12dB 2

35、0dB 20dB 20dB 20dB 40dB 1kHz 0dB L 1 1 3 1kHz 0dB R 1 1 4 1kHz 20dB L/R 1 1 5 20Hz 20dB L/R 1 1 6 20kHz 20dB L/R 1 1 7 16kHz De-Emphasis L/R 1 1 8 100Hz 0dB L/R 1 1 9 headphones output p key p key ” key ” key ” key p key ” key p key ” key p key ” key p key ” key p key ” key p key ” key p key ” key p

36、 key ” key 060 Sled movement ModeDescription 061Sled in 062Sled out 5 070 Automatic adjustment ModeDescription 071Focus search 072Access 32 073ADER check 074Tracking sensitivity adjust 090 NV relation ModeDescription 091NV clear 092Power OFF 093Function code change Audio Mode Enter the test mode and

37、 press the VOL ke y. Then, press the ” key and the VOL + ke y in this turn to enter audio mode. When entering another mode, refer to the configuration of test mode. 1. Structure of Audio Mode The mode No. 111 is f or S/N and cr osstalk. The mode No. 115 is for distor tion factor and frequency charac

38、teristics. When the VOL +/ ke ys is pressed in any mode , the v olume of the headphones is changed (increased/decreased) in units of one step. When the + / = keys is pressed, the v olume of the headphones is maximized/minimized. For the volume value, any changed value remains as it is basi- cally. H

39、owever, when the v olume is s witched fr om 114 to 115 or 118 to 119, it returns the default value . 10 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 040

40、Auto? Power Mode Enter the test mode and press the VOL ke 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. Power Mode Structure Overall Adjustment Mode Enter the test mode and press the VOL + ke y to e

41、nter overall adjustment mode. When entering another mode, 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 Power mode 3 0 0 UNREG check 31 0 Power off 3 1 1 Supply DET

42、 3 1 2 Charge start 3 2 1 Charge test 3 2 0 +, key p key p key p key ” key ” key ” key ” key ” key p key Press the P key to disconnect the power in mode No. 311. To displa y po wer inf ormation in mode No. 312. 312 XX XX Charge status code Input voltage value (hex) *) *) Input v olta ge value = Disp

43、la y volta ge value (he x) divided b y 256 and multiplied by 9.016 Example : With displa y of 50 (he x), 50 (he x) = 80 (dec) Input v olta ge = 80 divided by 256 and m ultiplied b y 9.016 = 2.8175 V Char ge status code (second digit) CodeDescription 0 Unable to charge (No adaptor attached, or no pow

44、er if present) 8Chargeable *1) AServo system stopped/chargeable *1) *1) Char geab le : AC adaptor attached and AA battery availab le, or AC adaptor attached and gum type battery availab le. Char ge status code (first digit) CodeDescription 1 Gum type battery not detected (AA battery available or no

45、battery) 2Description Gum type battery detected 4AC adaptor detected 5Gum type battery not detected/AC adaptor detected 6Gum type battery detected/AC adaptor detected When in mode No. 321, the system automatically tries to detect the AC adaptor and the battery. If chargeab le, it star ts c harging.

46、(No charge displa y and no LED flashing during this mode.) 321 XX XX Voltage value (hex) *) at battery terminal Charge status code *) Batter y terminal v olta ge = Displa y volta ge value (he x) divided by 256 and multiplied by 2.8 Example : With displa y of A0 (he x), A0 (he x) = 160 (dec) Terminal v olta ge = 160 divided by 256 and m ultiplied b y 2.8 = 1.75 V 11 SEC