Pioneer-XCIS21MD-cs-sm 电路图 维修手册.pdf

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1、ORDER NO. PIONEER ELECTRONIC 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 ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD

2、. 253 Allexandra Road, #04-01, Singapore 159936 ? ? ? ? ? ? PIONEER ELECTRONIC CORPORATION 1999c RRV2149 XC-IS21MD 1. SAFETY INFORMATION.2 2. EXPLODED VIEWS AND PARTS LIST . 3 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 14 4. PCB CONNECTION DIAGRAM.38 5. PCB PARTS LIST.52 6. ADJUSTMENT.57 7. GENERAL INFO

3、RMATION.68 CONTENTS 7.1DIAGNOSIS.68 7.1.1 SINGLE OPERATION METHOD.68 7.1.2 SEQUNCE AFTER THE POWER ON.70 7.1.3 DETAILS OF ERROR DISPLAY.71 7.1.4 DISASSEMBLY.74 7.1.5 PCB LOCATION.80 7.2 PARTS.81 7.2.1 IC.81 8. PANEL FACILITIES AND SPECIFICATIONS.96 T ZZY MAY 1999 Printed in Japan THIS MANUAL IS APPL

4、ICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). CD MD TUNER Remarks Type Model XC-IS21MD Power Requirement ZUCXJODC power supply from other system This product is a system(s) component. This product does not function properly when independent; to avoid malfunctions, be sure to connect it to the prescr

5、ibed system component(s), otherwise damage may result. CD MD TUNERXC-IS21MDRRV2149This service manual STEREO POWER AMPLIFIERM-IS21RRV2143 SPEAKER SYSTEMS-IS21RRV2141 System IS-21MD Component Service ManualRemarks RadioFans.CN 收音机爱 好者资料库 XC-IS21MD 2 1. SAFETY INFORMATION This service manual is intend

6、ed 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. Improperly performed repairs can advers

7、ely 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 product contains lead in solder

8、 and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. Health 1 : System bus communication P18 CLK P19 DATA P20 REQ 2 : Starts the LCD communication P47 LCDCLK P44 LCDCE P46 LCDDATA 3 : Transfer the Functi

9、on, Volume, BASS and TREBLE data to the volume IC. P13 VOLCE P15 VOLDATA P16 VOLCLK 4 : Initial setting of CD decoder IC P100 CDCLK P1 CDLAT P2 CDDATA 5 : Initialize the TUNER PLL IC P23 TXCE P24 TXODAT P25 TXCLK P26 TXIDAT 50 msec ? Release power down detection Power on POWER ON Power is ON. Transm

10、it the bus data. Close the CD door. Initialize the MD. Function : CD (4) Initial setting of CD decoder IC. P5 CDCONT : L Initialize the LCD Driver. DECK control IC starts the data transfer. Does CD door open ? Is P50 and P51 at H level ? Perform the following process after one second after the POWER

11、 ON. Transfer the Function, Volume, BASS and TREBLE data to the volume IC. (3) Perform the following process after 3.9 seconds after the POWER ON. Release the system MUTE. P22 SYSMUTE : H Perform the following process after 4.0 seconds after the POWER ON. Release the speaker relay. P21 SPCONT : H Fu

12、nction : TUNER (5) Initialize the TUNER PLL IC. P28 TXPOW : H Release the mechanism reset No 71 XC-IS21MD Details of Error DEFECT occurred 10 times continuously during REC-PLAY. Recordable cluster became 0 since DEFECT occurred during REC-PLAY. Address is unreadable. REC state can not be set for 20

13、seconds even after try again. Determined as follows according to the channel status of the signals input from D-IN during REC-PAUSE or REC-PLAY. 1. Other than audio 2. Other than consumer use 3. Copy NG due to inversion of COPY bit of CD The following occurred for digital signal input from D-IN duri

14、ng REC-PAUSE, REC-PLAY, or CD FUNC playback 1. Digital IN PLL unlocked. 2. Locked at other than FS = 32, 44.1 and 48 kHz. No area for registering music number and character information during REC-PLAY (music name, disc number, etc.) FTNO LTNO. FTNO 0 or 1. UTOC recorded on DISC could not be read. St

15、art address End address. Any one data of UTOC 0 to 4 has looped. Data not for audio is recorded for TNO track mode currently selected. Data called MINI of system ID written in ASCII codes in TOC is incorrect. Disc type written in TOC is not pre-mastered MD, recording MD, or hybrid MD. No recordable

16、space when attempted to set REC-PAUSE. Disc only for playback was loaded when attempted to set REC- PAUSE or edit. Attempted to record or edit even through REC-proof knob of disc for recording was in the REC-proof state. Attempted to edit track with write-protect according to information on UTOC. Ed

17、iting conditions were not satisfied for each editing function. Data read was incorrect or could not be read properly. Error occurred during music data recording and recording could not be performed correctly. Music data READ search time exceeded REC PAUSE shift abnormality (search time exceeded) SD

18、WRITE (search time exceeded) Error Display Cant REC Cant COPY DIN UNLOCK TOC FULL UTOCER T S R UTOCER A UTOCER L 0 1 2 4 NOT AUDIO ? DISC DISC FULL Playback MD PROTECTED Can t EDIT DISC ER DISC ER R DISC ER S DISC ER W 7.1.3 DETAILS OF ERROR DISPLAY Measure Check if there are scratches, dusts, finge

19、rprints, or black spots on disc. Check if disc fluctuates eccentrically or moves up and down largely. Check if CD is copy-proof. (Example: CD-R, etc.) Check if D-IN signal line is normal. Replace with recording/playback disc with space for registering UTOC. Replace with other discs to check if UTOC

20、data is normal. Replace with other discs to check if UTOC data is normal. Replace with other discs to check if UTOC data is normal. Select other TNO or replace with other discs. Disc is outside specifications. Replace with different disc and check. Replace with different disc with recording space. D

21、isc is for playback only. Replace with disc for recording. Track attempted to be edited is write-protected. Try again with different track. Restore the REC-proof knob and try again. Operating method is wrong. Try again using correct method. Faulty TOC or UTOC data or scratch on disc. Replaced with o

22、ther discs. 72 XC-IS21MD Error Display ? DISC UTOCER W FOCUS ERR MEM. FULL BLANK DISC DEFECT UTOCER W EEPROM ER MECH ER 3E 3M 3L 3D 2E 2M 2L 2D 1E 1M 1L 1D SIO ERROR Details of Error TOC read was incorrect or could not be read properly. Fault occurred during rewriting of UTOC rewriting, and rewritin

23、g could not be performed correctly. Inserted a disc but could not bring in FOCUS. The DRAM has become filled with music data, but they can not be written (to the disc). After reading UTOC, total number of TNO and NAME characters was 0. Focus execution error, etc. occurred due to shock during REC- PL

24、AY. UTOC read was correct but could not be rewrite it. The EEPROM data are incorrect. Never completes EJECT. Never moves HEAD UP. Never moves HEAD DOWN. The set microcomputer and MD mechanism microcomputer are not communicating properly. It cant communicate with system control IC and MD mechanism co

25、ntrol IC. Measure The TOC data recorded on the disc do not comply with MD Standards, so try using another disc. The disc may be scratched or damaged, so try using another disc. Scratch on disc. Replaced with other discs. Check if there are scratches, dusts, fingerprints, or black spots on disc. Chec

26、k if disc fluctuates eccentrically or moves up and down largely. Check if there are scratches, dusts, fingerprints, or black spots on disc. Check if disc fluctuates eccentrically or moves up and down largely. Record and check if disc is recordable. Check if there are scratches, dusts, fingerprints,

27、or black spots on disc. Check if disc fluctuates eccentrically or moves up and down largely. Check to see if the recording head contact is correct or if there are any disconnections between the board and the recording head. Try doing a Preliminary Adjustment and a normal Adjustment. If the problem s

28、till persists, replace the EEPROM. Check if communication line with the MD mechanism assy and connector is normal. 73 XC-IS21MD Front Panel Assy 1 1 1 8 8 1 1 5 2 3 9 4 1 2 2 12 2 2 2 Rear Cover Note : Flexible cables are not removed in the case of the adjustment, but remove the Flexible cables to a

29、pply in the case of the exchange or repair. Front Panel Assy Flexible Cable Clamper Caution : Style the Flexible Cables as before so that cables may not be put in the Rear Cover when assembling it. CN7 Cutting Pliers Earth Lead Wire Unhook Front Side Bottom View Earth Lead Wire PC Support AFAssy 1 6

30、6 7 4 7.1.4 DISASSEMBLY 74 XC-IS21MD CD Mechanism Assy 2 Shield Plate CD Mechanism Assy CD Assy CD Assy CD Mechanism Assy Caution : When the CD Assy is pulled out, it is careful of the breaking down of the Flexible Cable. Exchange 2 1 2 55 5 6 3 3 4 3 75 XC-IS21MD CD Door Drive Block Remove the CD D

31、oor CD Door Drive Block CD Door Exchange 1 3 2 4 CN7 OPEN/CLOSE CD Door AF Assy FM/AM TUNER Module Remove solder (bottom side) Remove solder (top side) CD Door OPEN/CLOSE When a connector CN7 of AF Assy is removed for the touch sensor system, sensor does not work and CD Door cant open and close. CD

32、Door can open when the land of CN7 at the foil side is short-circuited with the finger. FM/AM TUNER Module for European model Shield Case is being soldered in the European model. Remove solder in the case such as exchange. Note 1 2 76 XC-IS21MD Shield Cover MD MD Assy MD Mechanism Assy 5 3 7 4 9 10

33、6 8 5 MD Mechanism Assy U-COM Assy AF Assy Independent power supply point Test Point for TEST MODE (MD) GND +5.6V +15V +8V 2 2 1 1 4 2 43 3 77 XC-IS21MD How to Diagnose the MD Mechanism Assy Diagnose the MD Mechanism Assy as shown below. MD Mechanism Assy MD Mechanism Assy (bottom view) MD Assy U-CO

34、M Assy FM/AM TUNER MODULE AF Assy CD Assy FRONT PANEL Assy Removal of the Servo Mechanism Assy 1 Remove the screw A and screw B. 2 Disconnect the connectors (CN102, CN103, CN105), open the hook of part A, and tilt the upper side of the CORE MAIN ASSY to the front. 3 Disconnect the connector (CN101)

35、at the rear of the CORE MAIN ASSY and remove the CORE MAIN ASSY. 4 After the Carrier has been pushed in, move the Upper Slider to the rear and stop it at the position where the Under Slider starts to move. 5 Shift part B to the position shown in the figure while raising the Under Slider. (At the sam

36、e time, the Upper Slider moves to the front.) 6 Remove the Lock Plate. (One screw C) CN101 CORE MAIN ASSY CN103 CN105 CN102 1 1 3 2 2 2 Screw A Screw B Part A MD Mechanism Unit5 6 4 Under Slider Upper Slider Lock Plate Part B Screw C 5 78 XC-IS21MD 7 Remove the Servo Mechanism Assy. Caution for the

37、time of installation of the servo mechanism assy Move the MD Pick-up to the innermost circumference. The servo mechanism assembly is not installed other than the innermost circumference. 1 Remove the MD Head. (One screw A) 2 Remove the Screw Guide at the lower side of the MD Pick-up. (One screw B) 3

38、 Remove the S. H. Spring. (One screw C) 4 Remove the hook of the S. H. Spring as shown in the figure on the right. 5 Remove the Safety Screw. 6 Raise the left side of the Guide Shaft and pull it out to the left. 7 Remove the MD Pick-up. (With the front facing down, remove it to the front. At this ti

39、me, the MD Pick-up can be removed more easily when the Reference Plate is removed.) Removal of the MD Pick-up 7 Servo Mechanism Assy Safety Screw Screw B? (M1.4 2) MD Head S. H. Spring Screw A (M1.7 4) Screw C? (M1.7 3) 1 2 3 5 4 Screw Guide Servo Mechanism Assy Remove the hook after the screw has b

40、een removed. 6 7 Reference Plate Hook Guide Shaft MD Pickup 79 XC-IS21MD MD Pick-up Installation Perform installation in reverse order of the removal. (Please use care as the MD Head mounting screw can be crushed easily. MD Head mounting screw tightening torque: 1.1 kg cm S. H. Spring Installation W

41、hen the Reference Plate has been removed, confirm that the hook is engaged with the shaft of the spindle motor. (Take care that the mounting reference boss does not ride up.) Removal of the Head Lifter Head Lifter Installation 1 Remove the Lifter SP. 2 Tilt the Head Lifter to the rear and push part

42、A to disengage it. 1 Install part A in the Servo Base with the Head Lifter tilted to the back. 2 Match the Head Lifter and the Servo Base as shown in the figure, and then engage part B. 3 While holding part B with your hand, tilt the Head Lifter to the front and install the Lifter SP. 1 3 2 S. H. Sp

43、ring Insert Push in while changing the point. Press in with a screwdriver or similar until the hook becomes engaged. Confirm from the rear that the tip of the hook is engaged sufficiently. 1 3 2 Head Lifter Servo Base Head Lifter Part A Push Part B Part B Matching Position 1 2 Head Lifter Lifter SP

44、Push Part A 80 XC-IS21MD 7.1.5 PCB LOCATION AF ASSY U-COM ASSY R-TERMINAL ASSY TUNER MODULE TX CONECT ASSY MD ASSY F-TERMINAL ASSY FRONT PANEL ASSY CD CLOSE SW ASSY CD MOTOR ASSY CD OPEN SW ASSY CD ASSY LIGHT-L ASSY LCD ASSY REAR N M D F P G O I MD FLAP ASSY Q E H C L B A 81 XC-IS21MD 7.2 PARTS The

45、information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams. M5M4V4400CTP-7 (CORE MAIN ASSY : IC103) DRAM Pin Assignment (Top View) 7.2.1 IC List of IC M5M4V4400CTP-7, M56758FP, PD5523A, LR376487, BD7910FV, BR93LC56F, IR3R55M, AK4520A, CX

46、A1821M, CXD2587Q, PDG241. Pin Function 13 12 11 10 9 5 4 3 2 1DQ1 DQ2 W RAS A9 A0 A1 A2 A3 VCC VSS DQ4 DQ3 CAS OE A8 A7 A6 A5 A4 14 15 16 17 18 22 23 24 25 26 No.Name Description 1DQ1 Data Input/Output 2DQ2 3WWrite control input 4RASLine address strobe input 5A9Address input 6 | 8 9A0 |Address input

47、 12A3 13VccPower supply voltage (+3.3 V) No.Name Description 14A4 |Address input 18A8 19 | 21 22OEOutput-enable input 23CASColumn address strobe input 24DQ3 Data Input/Output 25DQ4 26VssGround (0 V) Block Diagram 4 3 10 23 14 15 12 11 16 17 18 Clock Generation Circuit Memory Cell (4194304bits) Sense Reflesh Amp. Input/Output Control Circuit Addre