SONY hhb_mdp-500_service 维修电路图.pdf

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1、Visit HHB online at www.hhb.co.uk HHB Communications Ltd 73-75 Scrubs Lane, London NW10 6QU, UK Tel: 020 8962 5000 Fax: 020 8962 5050 E-Mail: saleshhb.co.uk HHB Communications USA LLC 1410 Centinela Avenue, Los Angeles, CA 90025-2501, USA Tel: 310 319 1111 Fax: 310 319 1311 E-Mail: HHB Communication

2、s Canada Ltd 260 King Street East, Toronto, Ontario M5A 4L5, Canada Tel: 416 867 9000 Fax: 416 867 1080 E-Mail: SERVICE MANUAL HHB MDP500 PORTABLE MINIDISC RECORDER 收音机爱好者资料库 Ra d i o Fa n s .CN This service manual is intended for qualified service technicians; it is not meant for the casual do-it-y

3、ourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warran

4、ty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician. This appliance is classified as a CLASS 1 LASER product, the CLASS 1 LASER product marking is on the rear of the unit in

5、side the battery compartment. This equipment fully complies with 21 CFR 1040.10 and 1040.11 CAUTION: Invisible laser radiation when the unit is disassembled, avoid exposure to beam. 32 CONTENTS PORTADISC MDP500 MiniDisc Recorder SAFETY INFORMATION 1. DISASSEMBLY INSTRUCTIONS . . . . . . . . 5-12 Rem

6、oving The Top it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety an

7、d reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician. This appliance is classified as a CLASS 1 LASER product, the CLASS 1

8、 LASER product marking is on the rear of the unit inside the battery compartment. This equipment fully complies with 21 CFR 1040.10 and 1040.11 CAUTION: Invisible laser radiation when the unit is disassembled, avoid exposure to beam. 32 CONTENTS PORTADISC MDP500 MiniDisc Recorder SAFETY INFORMATION

9、1. DISASSEMBLY INSTRUCTIONS . . . . . . . . 5-12 Removing The Top s = sub-code Q channel address; a = ADIP (address in pre-groove) address. If - is displayed, then the address can not be read. The header address (h) is the unique address of each data block and is contained within the data itself. Th

10、e sub-code Q channel (s) contains the address information extracted from the sub-code data. This should be the same as the header address. The ADIP address (a) is the unique address pre-stamped on a recordable disc using modulated wobble. 3.Auto Gain Display AG F=XX T=XX F indicates acquired Focus A

11、uto Gain value T indicates acquired Tracking Auto Gain value This adjustment saves the temperature data as a 25oC reference for the alignment process. It is not necessary to perform this alignment unless the laser assembly is replaced Perform this adjustment just after turn on in an ambient temperat

12、ure of between 22 to 28oC. a)Use the AMS buttons to locate the TEMP ADJUST page, then press F1 to select. b)Ensure that TEMP = XX where XX falls within the range E0-EF, F0-FF, 00-0F, 10-1F, 20-2F. c)Press F1 to SAVE (SAVE will briefly be displayed) or press F3 to exit without saving. Oscilloscope; M

13、D-LPM1 laser power meter; voltmeter; Sony test disc TDYS-1; Continuously recorded disc (see end of this section for details on how to create one of these discs). BUTTONFUNCTION AMS BACKCycles back through the various alignment pages and used to adjust parameter values OPENEjects the disc AMS FFWDCyc

14、les FFWD through the various alignment pages and used to adjust parameter values PLAYSpindle servo ON Used to manually traverse the sled assembly towards the outer diameter STOPStops rotation of the disc. This should always be pressed before ejecting the disc. Also turns off laser. Used to manually

15、traverse the sled assembly towards the outer diameter STOPStops rotation of the disc. This should always be pressed before ejecting the disc. Also turns off laser. Used to manually traverse the sled assembly towards the inner diameter DISPLAYToggles between the various test mode displays (see below)

16、 F1YES F3NO Select the alignment mode by using the AMS BACK and FFWD buttons. Enter the alignment mode by pressing F1. Exit the alignment mode by pressing F3. ALIGNMENT MODEDESCRIPTION TEMP ADJUSTTemperature compensation offset LDPWR ADJUSTLaser Power adjustment LDPWR CHECKLaser Power check EFBAL AD

17、JUSTTraverse adjustment FBIAS ADJUSTFocus Bias adjustment FBIAS CHECKFocus Bias check CPLAY MODEContinuous playback mode CREC MODEContinuous record mode EEP MODEDo not use Tools For Alignment Button Operation During Alignment Test Mode The Alignment Modes Test Mode Diisplays Temperature Compensation

18、 Offset Adjustment TEST MODE i.e., it is always enabled. 3OPEN Press this button to eject the MD disc. This function is disabled during recording. 4EDIT Use this button to enter the different edit modes. 5AMS Use the button to move back one or more tracks and the button to move forward one or more t

19、racks. These buttons are also used in editing and naming. 6REWIND Rewinds the track during playback. 7PLAY Use this button to start playing back the track. 8FAST FORWARD Fast forwards the track during playback. 9STOP Use this button to stop the playback or recording operation. 10RECORD VOLUME CONTRO

20、L Dual concentric control for independent left and right level adjustment. 11INTERNAL MONO MICROPHONE 12MONITOR SPEAKER 13SHOULDER STRAP ATTACHMENT POINTS 5554 L L S L L S TOP PANEL PORTADISC MDP500 MiniDisc Recorder 1BATTERY COMPARTMENT This cover slides off (from right to left in this view) and un

21、derneath is the battery caddy, holding 8 x AA batteries. 2KEYHOLD Use this button to avoid any accidental operation during recording. Each time you press the button for more than two seconds, the hold function changes from Key Hold ON to Key Hold OFF and vice versa. The following buttons can still o

22、perate even when the keyhold function is on: KEY HOLD, LIGHT, MARK, DISPLAY and POWER. The remote control connection will not be affected by this function; i.e., it is always enabled. 3OPEN Press this button to eject the MD disc. This function is disabled during recording. 4EDIT Use this button to e

23、nter the different edit modes. 5AMS Use the button to move back one or more tracks and the button to move forward one or more tracks. These buttons are also used in editing and naming. 6REWIND Rewinds the track during playback. 7PLAY Use this button to start playing back the track. 8FAST FORWARD Fas

24、t forwards the track during playback. 9STOP Use this button to stop the playback or recording operation. 10RECORD VOLUME CONTROL Dual concentric control for independent left and right level adjustment. 11INTERNAL MONO MICROPHONE 12MONITOR SPEAKER 13SHOULDER STRAP ATTACHMENT POINTS 5554 L L S L L S F

25、RONT PANEL PORTADISC MDP500 MiniDisc Recorder SIDE PANELS PORTADISC MDP500 MiniDisc Recorder 5756 14PHONE LEVEL Adjusts the volume level for the headphones and monitor speaker. The control will pop out if you press it. The monitor speaker will not function during recording or when the headphones are

26、 connected. 15INPUT Changes the following input related settings: Input source: MIC, LINE, DIGITAL, INT MIC, OFF Options for MIC: MIC-Att, BASSCUT, LIMITER, PHANTOM Options for LINE: LIMITER Options for DIGITAL: COAXIAL, OPTICAL, USB input connections 16DISPLAY Changes the display menu through disc

27、time, level margin, time & date. 17LIGHT Illuminates the display back light for a few seconds. Hold it down for more than two seconds in order for it to be continuously lit. Press it again to switch off the light. 18MARK Marks the track number manually during record mode and play/pause mode. 19SYSTE

28、M Changes the following system settings: REC MODE, TRACK-INCREMENT, THRESHOLD LEVEL, AUTO-START/CUT, AUTO-PAUSE, PRE-RECORD, HEADPHONE MONITOR, OVERWRITE MODE, REPEAT MODE, DIGITAL OUTPUT and AUTO POWER DOWN. 20SETUP Changes the following setup options: OPEN SETUP , SAVE SETUP , CLOCK/DATE SETUP , D

29、ATE FORMAT, PEAK HOLD METER and DISPLAY CONTRAST. Use this button to save and recall set-ups. OPEN SETUP consists of five user set-ups, which can be used to store all the menu settings on the recorder, and three recording presets MIC REC, LINE REC and DIGI REC. 21REC LEVEL Adjusts the analog recordi

30、ng level manually for mic and line inputs. This control does not affect the signal level when the AGC function is set to ON. The outer control adjusts the left hand channel and the inner control adjusts the right hand channel. A friction lock between the two controls allows them to move together but

31、 also be adjusted individually. 22RECORD Slide this button to the right to enter record mode. 23POWER Press this button for one second to power ON and press for more than one second then release to power OFF. This button does not turn the power off during recording and TOC operations. 24F1, F2, F3 S

32、elects the parameters according to the corresponding set-up functions on the display above. 25LCD DISPLAY Shows level metering, disc information, timing information and all the menu select and control displays. 26REC LEVEL LOCK Mechanically locks the REC LEVEL knob position in order to avoid acciden

33、tal adjustment. Slide this button up to lock. 27REC INDICATOR This LED will light up red in record mode and blink in record pause mode. 28BAT CHG INDICATOR This LED will light up green when charging the NiMH rechargeable batteries. 29PAUSE INDICATOR This LED will light up yellow in pause mode. 30PAU

34、SE BUTTON Use this button to pause the record or playback operation. Pressing this button before pressing the record button will put the recorder into record pause mode, ready for recording. 31PHONES SOCKET 1/4 jack socket for headphone connection. 32LINE OUT LEFT AND RIGHT CONNECTORS (Unbalanced RC

35、A phono.) To send analog output signals to other equipment. 33COAXIAL I/O CONNECTORS (Unbalanced RCA phono.) SPDIF digital coaxial connectors. 34MIC/LINE CONNECTORS (Balanced XLR.) To connect either MIC or LINE inputs. 35REMOTE CONNECTOR Parallel remote control connector. 36USB CONNECTOR USB interfa

36、ce port for a compatible computer. 37OPTICAL I/O CONNECTORS (TOSlink.) SPDIF digital optical connectors. 38BATTERY COMPARTMENT 39DC INPUT CONNECTOR To connect the standard accessory AC adaptor, or an optional car adaptor. DC12-14V. 40MINIDISC SLOT A disc must be inserted into this slot with the arro

37、w on the disc casing facing into the recorder. 41SHOULDER STRAP ATTACHMENT POINTS FRONT PANEL PORTADISC MDP500 MiniDisc Recorder SIDE PANELS PORTADISC MDP500 MiniDisc Recorder 5756 14PHONE LEVEL Adjusts the volume level for the headphones and monitor speaker. The control will pop out if you press it

38、. The monitor speaker will not function during recording or when the headphones are connected. 15INPUT Changes the following input related settings: Input source: MIC, LINE, DIGITAL, INT MIC, OFF Options for MIC: MIC-Att, BASSCUT, LIMITER, PHANTOM Options for LINE: LIMITER Options for DIGITAL: COAXI

39、AL, OPTICAL, USB input connections 16DISPLAY Changes the display menu through disc time, level margin, time & date. 17LIGHT Illuminates the display back light for a few seconds. Hold it down for more than two seconds in order for it to be continuously lit. Press it again to switch off the light. 18M

40、ARK Marks the track number manually during record mode and play/pause mode. 19SYSTEM Changes the following system settings: REC MODE, TRACK-INCREMENT, THRESHOLD LEVEL, AUTO-START/CUT, AUTO-PAUSE, PRE-RECORD, HEADPHONE MONITOR, OVERWRITE MODE, REPEAT MODE, DIGITAL OUTPUT and AUTO POWER DOWN. 20SETUP

41、Changes the following setup options: OPEN SETUP , SAVE SETUP , CLOCK/DATE SETUP , DATE FORMAT, PEAK HOLD METER and DISPLAY CONTRAST. Use this button to save and recall set-ups. OPEN SETUP consists of five user set-ups, which can be used to store all the menu settings on the recorder, and three recor

42、ding presets MIC REC, LINE REC and DIGI REC. 21REC LEVEL Adjusts the analog recording level manually for mic and line inputs. This control does not affect the signal level when the AGC function is set to ON. The outer control adjusts the left hand channel and the inner control adjusts the right hand

43、 channel. A friction lock between the two controls allows them to move together but also be adjusted individually. 22RECORD Slide this button to the right to enter record mode. 23POWER Press this button for one second to power ON and press for more than one second then release to power OFF. This but

44、ton does not turn the power off during recording and TOC operations. 24F1, F2, F3 Selects the parameters according to the corresponding set-up functions on the display above. 25LCD DISPLAY Shows level metering, disc information, timing information and all the menu select and control displays. 26REC

45、LEVEL LOCK Mechanically locks the REC LEVEL knob position in order to avoid accidental adjustment. Slide this button up to lock. 27REC INDICATOR This LED will light up red in record mode and blink in record pause mode. 28BAT CHG INDICATOR This LED will light up green when charging the NiMH rechargea

46、ble batteries. 29PAUSE INDICATOR This LED will light up yellow in pause mode. 30PAUSE BUTTON Use this button to pause the record or playback operation. Pressing this button before pressing the record button will put the recorder into record pause mode, ready for recording. 31PHONES SOCKET 1/4 jack s

47、ocket for headphone connection. 32LINE OUT LEFT AND RIGHT CONNECTORS (Unbalanced RCA phono.) To send analog output signals to other equipment. 33COAXIAL I/O CONNECTORS (Unbalanced RCA phono.) SPDIF digital coaxial connectors. 34MIC/LINE CONNECTORS (Balanced XLR.) To connect either MIC or LINE inputs

48、. 35REMOTE CONNECTOR Parallel remote control connector. 36USB CONNECTOR USB interface port for a compatible computer. 37OPTICAL I/O CONNECTORS (TOSlink.) SPDIF digital optical connectors. 38BATTERY COMPARTMENT 39DC INPUT CONNECTOR To connect the standard accessory AC adaptor, or an optional car adap

49、tor. DC12-14V. 40MINIDISC SLOT A disc must be inserted into this slot with the arrow on the disc casing facing into the recorder. 41SHOULDER STRAP ATTACHMENT POINTS LCD DISPLAY PORTADISC MDP500 MiniDisc Recorder TECHNICAL DATA PORTADISC MDP500 MiniDisc Recorder 42-3LEVEL INDICATOR The bar meter shows the audio level in playback and record. (42) left hand channel (43) right hand channel. 44RECORD/PLAYBACK MODE INDICATOR The icons indicate pause, play and record modes. 45DISPLAY MODE INDICATOR Displays the track number, record/play time, re