Pioneer-DV444-cd-sm维修电路原理图.pdf

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1、ORDER NO. PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-

2、01, Singapore 159936 PIONEER CORPORATION 2001c DV-444 RRV2490 T ZZE JULY 2001 Printed in Japan DVD PLAYER THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). Type Model Power RequirementRegion No.Remarks DV-444DV-440 KUXQAC120V1 KCXQAC120V1 KUXJAC120V1 KCXJAC120V1 DV-440 1. SAFETY INFOR

3、MATION.2 2. EXPLODED VIEWS AND PARTS LIST . 3 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM.10 4. PCB CONNECTION DIAGRAM.33 5. PCB PARTS LIST.43 6. ADJUSTMENT.48 CONTENTS 7. GENERAL INFORMATION . 54 7.1 DIAGNOSIS.54 7.1.1 SELF-DIAGNOSTIC FUNCTION OF PICKUP DEFECTIVE.54 7.1.2 TEST POINTS LOCATION.55 7.1.3 T

4、EST MODE SCREEN DISPLAY.56 7.1.4 TROUBLE SHOOTING . 60 7.1.5 ERROR CODE . 61 7.1.6 DISASSEMBLY.65 7.2 PARTS.71 7.2.1 IC.71 7.2.2 FL DISPLAY . 93 8. PANEL FACILITIES AND SPECIFICATIONS.94 87 4 1STANDBY/ON 0 3 DVD PLA YER FL DIMMER DV-444 RadioFans.CN 收音机爱 好者资料库 2 DV-444, DV-440 1. SAFETY INFORMATION

5、This service manual is intended for qualified service technicians ; 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. Improper

6、ly performed repairs can adversely affect the safety and 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. WARNING This

7、product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. Health Location of the display: At the two digits of center of the FL display To display the error history: ESC + DISPL

8、AY + One shot; Location of the display: TV screen FL Description of Error Causes if with a DVDCauses if with a CDOperation of the Unit 11Search timeout Search could not be complete within 7 seconds. Search could not be complete within 7 seconds, and it could not enter the target area within 7 second

9、s by VCD scan. CD : Stops, DVD : Continues operation 12 Search retry error A search could not be completed after 3 retries, search backup was executed 4 times, or in a case of timeout (6 seconds) while the unit was tracing 11 tracks or more beyond the target while the search operation was converging

10、. Backup against slider skip was executed 4 times during a search, or slider skip twice resulted in starting from the read-in point. CD : Stops, DVD : Continues operation 19 Tracing timeout while converging Timeout (10.5 seconds) while tracing at the stage of convergence of a search. Stop 1B Index 0

11、 search error During Track (Index) Search, the search for the beginning of a program could not be completed within 3 seconds (20 seconds in the case of Index Search) after positioning based on the TOC data was completed. Stop 1C Wobble distinction error Distinguished RW disc without wobble.Read the

12、RW control data. 22 Timeout of slider inner circumference Inside switch could not ON within 3 seconds.Stop 23 Timeout of slider outer circumference Inside switch could not OFF within 2 seconds.Stop 62 DV-444, DV-440 FL Description of Error Causes if with a DVDCauses if with a CD Operation of the Uni

13、t 39 SGC converge timeout SGC could not converge during detects the peakOpen 41Spindle timeoutThe unit did not enter Stop mode within 10 seconds of issuance of a Stop command.Stop 48 Spindle FG transition timeout The spindle could not converge into within 12% of the target FG rotation speed within 1

14、0 seconds after spindle kick. The first time after startup (the first time after disc distinction), it doesnt become the number of the target rotation within five seconds. The first time after startup, detects the abnormal rotation number of high-speed continuously 3 loops. DVD: 5 to 9 mS , CD: 40 t

15、o 60 mS Stops. (FG timeout) 49 Spindle PLL transition timeout After the second times after startup, it doesnt become the number of the target rotation within five seconds. Detects the abnormal high-speed or low-speed rotations. DVD: 5 to 9 mS , CD: 40 to 60 mS Stops. (73 is displayed during starting

16、 process.) 4ASpindle lock timeoutSpindle could not lock more than 1.5 seconds before start the AFB. Stops. (73 is displayed during starting process.) 51 Auto sequence timeout of peak detection ABUSY did not return within 1 second after the DDTCT (peak detection) command was sent. Stop 52 Auto sequen

17、ce timeout of focus jump down ABUSY did not return within 30 mS after the FJMPD (Focus jump 1 to 0) command was sent. Stop 53 Auto sequence timeout of focus jump up ABUSY did not return within 30 mS after the FJMPU (Focus jump 0 to 1) command was sent. Stop 54 Auto sequence timeout of play AGC ABUSY

18、 did not return within 50 mS after the GSUMON (play-AGC-measuring) command was sent. Stop 55 Auto sequence timeout of disc-type- sensing ABUSY did not return within 2 seconds after the DJSRT (disc-sensing) command was sent. Stop 56 Auto sequence timeout of ATB2 ABUSY did not return within 1 second a

19、fter the TBLOFS (Internal ATB after the completion of external ATB) command was sent. Stop 57 Auto sequence timeout of tracking servo ON ABUSY did not return within 500 mS after the TSON (tracking servo ON) command was sent. Stop 58 Auto sequence timeout of ATB1 ABUSY did not return within 200 mS af

20、ter the TBL (external ATB) command was sent. Stop 59 Auto sequence timeout of focus gain adjustment ABUSY did not return within 2 seconds after the FGN (focus gain adjustment) command was sent. Stop 5A Auto sequence timeout of tracking gain adjustment ABUSY did not return within 2 seconds after TGN

21、(tracking gain adjustment) command was sent. Stop 5B Auto sequence timeout of offset adjustment ABUSY did not return within 1 second after the CMDAVE (offset adjustment) command was sent. Stop 33 No FOK pulse during playback CLVA When the focus was deviated continuously 20 times. Adjusts focus at th

22、e innermost circumference and tries to return to its position where the error was generated (for 3 times),then opens. If the same error persists after one retry, the tray opens. (No FOK pulse) 38 Disc-type- sensing error If normal starting was impossible in the following three cases, disc-type sensi

23、ng will be retried if other errors occure excepting C5 error. However, when the focus error 33 was occured continuously 3 times, it is finished as 38 error at the moment: (1) startup with the first disc-type-sensing result, (2) forced startup with another disc by designating the disc type, (3) force

24、d startup with the original disc by designating the disc type. Open 63 DV-444, DV-440 71 ID can not read during tracing FL Description of Error Causes if with a DVDCauses if with a CD Operation of the Unit An ID could not be read for 1 second or more.Stop 72 Subcode check failure during playback No

25、frame could be read for 3 seconds or more. Stop 73 ID can not read at the startup An ID could not be read within 1 second after the AFB adjustment had been finished. Opens (ID readout failure) 74 Subcode check failure during startup No subcode could be read within 3 seconds after AFB adjustment had

26、been finished. Opens (Subcode readout failure). 81 Timeout for reading TOC of the mechanism controller TOC readout took 30 seconds or more. Stop 82 Timeout for reading TOC of the system controller Reading TOC of the system controller took 30 seconds or more. Stop A1 Communication timeout of DSP comm

27、and A command could not be issued to DSP because Command Busy (XCBUSY) was in force (XCBUSY = L) for a specified time (about 200 mS). Open A2 Communication timeout for reading DSP coefficient Command Busy (XCBUSY) was in force for a specified time (about 200 mS) before and after a coefficient read c

28、ommand was issued to DSP, or the address echo-back after command issuance did not match the setup address. Open A3 Communication timeout for writing DSP coefficient Command Busy (XCBUSY) was in force for a specified time (about 1024 mS) before and after the coefficient write command was issued to DS

29、P. Open A4 Communication timeout for continuously writing DSP coefficient Command Busy (XCBUSY) was in force for 200 S during continuous coefficient writing, or before and after a continuous write command was issued to DSP. Open B1 Timeout error for backup In the tracing state during the backup sequ

30、ence, codes could not be read for 1 second or more. In the backup sequence, tracking ON sequence of the servo DSP could not be completed even if more than 500 mS after the tracking ON command was issued. Stops B2 Retry error for backup Tracing impossible after retring the tracking ON for 3 times in

31、the backup sequence.Stops B3Retry error for trace During tracing, runaway was detected after three iterations of backup operations for detecting runaway. Stops C3 Detection of tracking overcurrent During playback, the overcurrent detection port was at L for 300 ms or more continuously. Stops (the me

32、chanical controller operates independently). (C5) Short-circuit test corresponding error While the power was on, the overcurrent detection port was at L for 40 ms or more continuously. Turns off the power instantly (No indication on the FL display and no writing to flash memory) E3 Violation against

33、 digital copy guard Stops 5C Auto sequence timeout of modulation factor measurement ABUSY did not return within 200 mS after the ADJMIR (modulation factor measurement) command was sent. Stop 5D Auto sequence timeout of auto focus bias ABUSY did not return within 2 seconds after the AFB (auto focus b

34、ias) command was sent. Stop 5F Auto sequence already busy A command could not be sent because ABUSY was low. ABUSY did not return within 200 mS after TLV command was sent. Stop 62Pause retry error Pause mode could not be restored within three retries after it had been released. Continues operation 6

35、4 DV-444, DV-440 Error codes that are displayed on the FL display by using the remote control unit (Device error) To display : ESC + DISPLAY + DISPLAY ; Location of the display : At the two digits of left of the FL display FLDescription of ErrorCauses if with a DVDCauses if with a CDOperation of the

36、 Unit bit3=1 08 etc. AV1 access error (read, write NG) No operation or it becomes debugging indication if the power is able to ON.bit2=1 04 etc. MY CHIP access error bit1=1 01 etc. SRAM access error F5Tray being pushed The tray switch that had been Open mode was forcibly changed to a mode other than

37、 Open by an external force. Closes F8Loading timeout Loading, unloading or clamping could not be completed within a specified time (about 5 seconds). Reverses the loading direction. It timeout is repeated upon retry, the unit stops. FCFocus The following error occured eight times. (1) Focus ON seque

38、nce could not be completed even if more than two seconds after the focus ON command (to the servo DSP) was sent. (2) Focus IN sequence was finished, actually focus IN was not completed. Stops wherever possible then opens (stops in the case of side B). FL Description of Error Causes if with a DVDCaus

39、es if with a CDOperation of the Unit 65 DV-444, DV-440 2 3 3 2 4 1 3 2 1 3 1 3 Bonnet and Tray Panel1 7.1.6 DISASSEMBLY Note When diagnosing the unit, be sure to use two connection cables for service. (Part No. : GGD1222) DIAGNOSIS OF PCBs 1Remove the Bonnet (Screws 6) 2Power ON 3Tray open (0) 4Remo

40、ve the Tray Panel Tray Tray Panel 1Set the Test Disc 2Tray close (0) Clamp the Test Disc 3Power OFF 4Pull out the Power Cord from the outlet Test Disc Set2 Test Disc In the reverse state, pass a small screwdriver through a slit and slide a protruding portion of the Drive Gear of the Loading Mechanis

41、m Assy to the direction of arrow. If the Tray moved toward the front about 2 or 3 cm, pull out the Tray by hands. How to Open the Tray by Manual Operating Slit Small Square-bar Screwdriver Small Square-bar Screwdriver Drive Gear Loading Mechanism Assy Protruding portion 1Unhook (6) 2Remove the Front

42、 Panel Front Panel Assy3 Front Panel Assy 66 DV-444, DV-440 JACB ASSYD POWER SUPPLY UNIT H DVDM ASSY B SSIB ASSYC LOAB ASSY A FLKB ASSYF KEYB ASSYG Loading Mechanism Assy DVDM Assy DVDM Assy Loading Mechanism Assy 1 4 JACB Assy 1 2 2 2 4 3 3 2 7 5 PCB Location Loading Mechanism Assy4 1 Remove four s

43、crews. 2 Remove the Loading Mechanism Assy. Caution in installation: Excess length of 4P Flexible Cable of the stepping motor performs styling not to hold it under the JACB Assy. JACB Assy Performs styling on the JACB Assy. SSIB Assy Diagnosis of DVDM Assy5 1 Remove two screws. 2 Remove two PCB Supp

44、ort. 3 Remove two Flexible Cable. 4 Remove the DVDM Assy. 5 Connect two Connection Cables for Service (GGD1222) between DVDM Assy and JACB Assy. 6 7 Reverse the Loading Mechanism Assy and DVDM Assy, and arrange as figure below. Put in spacers under the Loading Mechanism Assy not to rub the Clamper.

45、Spacer Connection Cable for Service (GGD1222) 8Playback with a test disc, and diagnose the DVDM Assy. 67 DV-444, DV-440 Diagnosis of JACB Assy6 1 Remove the Rear Panel (Screws 7). 2 Remove the JACB Assy, MJKB Assy and the POWER SUPPLY Unit (Screws 10)(PCB Support 1). 3 4 5 Short-circuit W284 (GND of

46、 audio and video) on the JACB Assy as shown in the right figure. (Audio does not come out from output terminal that does not short-circuit.) Note: If diagnosis was completed, be sure to remove a wire. 6 POWER SUPPLY Unit JACB Assy MJKB Assy DVDM Assy Connection Cable for Service (GGD1222) 3 Loading

47、Mechanism Assy 4 Short point of the JACB Assy SIDE B Short-circuit W284 W284W284W284 4 Connect two Connection Cables for Service (GGD1222) between DVDM Assy and JACB Assy. Reverse the JACB Assy and POWER SUPPLY Unit, and arrange as figure below. Playback with a test disc, and diagnose the JACB Assy. 68 DV-444, DV-440 4 5 Turn the Short SW to Short side. 6 In the Tray insertion, insert it after matching a triangle mark of the Loading Base and a position of pin of the Drive Cam. 8 Remove a screw. 7 Remove the Loading Mechanism Assy (Screws 4). When Removing The Traverse