Service manual

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PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS (USA) 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, #04-01, Singapore 159936

C PIONEER CORPORATION 2002

K-ZZA. OCT. 2002 Printed in Japan

ORDER NO.

CRT2983

MULTI-CD CONTROL HIGH POWER CD PLAYER WITH FM/AM TUNER

DEH-P2550XM/ES, XN/ES

Service

Manual

DEH-P2550/XM/ES

- This service manual should be used together with the following manual(s):

Model No. Order No. Mech. Module Remarks

CX-3026 CRT2944 S10 CD Mech. Module:Circuit Description, Mech.Description, Disassembly

For details, refer to "Important symbols for good services".

Summary of content (59 pages)

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Service Manual ORDER NO. DEH-P2550/XM/ES CRT2983 MULTI-CD CONTROL HIGH POWER CD PLAYER WITH FM/AM TUNER DEH-P2550 XM/ES, XN/ES - This service manual should be used together with the following manual(s): Model No. CX-3026 Order No. CRT2944 Mech. Module Remarks S10 CD Mech. Module:Circuit Description, Mech.Description, Disassembly For details, refer to "Important symbols for good services". PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) INC. P.O.
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1 A 2 3 4 SAFETY INFORMATION 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. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.
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5 6 7 8 CONTENTS A SAFETY INFORMATION ............................................................................................................................................2 1. SPECIFICATIONS .......................................................................................................................................................4 2. EXPLODED VIEWS AND PARTS LIST.......................................................................................................................5 2.
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1 A 2 3 4 3 4 1.
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6 5 8 7 2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKING A B C NOTE: - Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List. - Screws adjacent to ∇ mark on the product are used for disassembly. - For the applying amount of lubricants or glue, follow the instructions in this manual. (In the case of no amount instructions, apply as you think it appropriate.) D - PACKING SECTION PARTS LIST Mark No. Description * * Part No. Mark No.
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1 2 3 4 3 4 2.
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6 5 8 7 - EXTERIOR SECTION PARTS LIST Mark No. Description A Part No. Mark No. Description Part No.
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1 2 3 4 3 4 2.
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6 5 8 7 - CD MECHANISM MODULE SECTION PARTS LIST Mark No. Description Mark No. Description Part No.
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1 2 3 4 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM A A TUNER AMP UNIT VDD IC 3 EEPROM 5.0V 5V OSC B ANTENNA NC NC NC 18 19 20 21 DO NC 14 NC 11 CE1 DI SL 10 9 8 CK 5 ROM_VDD CE2 WC 13 IC 5 3.3V ← 7 6 FM/AM TUNER UNIT LPF CN401 AM ANT 1 1 FMRF ATT Rch 2 3 IC 1 3.3V FM ANT ATT FMRF ANT adj 24 IC 2 2.5V Lch MIXER, IF AMP 23 DET, FM MPX RF adj T51 CF52 AUDIOGND NC 15 22 16 VDD_3.3 DGND 12 VCC OSCGND 2 4 3.3V IC 4 3.3V 2.5V 2.
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6 5 8 7 A RESET 1 2 IC 651 BD4834G VDD CN351 11 RL RL reset 4 CE2 32 CE1 99 DO 94 PRE OUT RL Q351 TUNPCE2 DI 98 CK 97 TUNPCE1 TUNPDI TUNPDO VDD REGULATOR TUNPCK Q901 74 SL VDD B Q902 SYSTEM CONTROLLER IC 601(1/2) PE5341C DALMON 10 CN981 BACKUP SENSE asens BU 93 Q931 92 FUSE 16 BACK UP 14 14 ACC 15 15 GND 16 BU bsens 10A ACC ACC SENSE C TUN L +L -L 3 IN2-L 5 IN4+L 6 IN4-L 4 BU ELECTRONIC VOLUME/ SOURCE SELECTOR POWER AMP 20 IC 301 PAL007A FL+ 2
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1 2 3 4 3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. A-a A A-a A-a A-a A-b A-b A-b Large size SCH diagram Guide page Detailed page FM:-31.0dBs AM:-31.0dBs IP-BUS:+2.2dBs CD:0dBs R4721 0R0 B CD:0dBs D CN701 IP-BUS:+2.2dBs IP-BUS C R9101 0R0 PE5 FM(30%):-30.0dBs AM(30%):-30.
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6 5 8 7 A-b A A TUNER AMP UNIT FM:-6.66dBs AM:-6.66dBs IP-BUS:+9.54dBs CD:+9.34dBs FM:-5.9dBs AM:-5.9dBs IP-BUS:+10.3dBs CD:+10.1dBs B REAR R CH REAR L CH C 5341C > FUSE 10A CEK1208 600µH BACKUP D GND ACC B.REM RL— FL— RL+ FL+ RR— FR— RR+ FR+ FM:+30dBs AM:+20dBs IP-BUS:+36dBs CD:+36dBs E NOTE : Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors. Symbol indicates a capacitor.
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1 F A-a IP-BUS E 14 2 D CN701 3 1 DEH-P2550/XM/ES 3 4 0R0 R9101 D 2 IP-BUS:+2.2dBs CD:0dBs B FM:-31.0dBs AM:-31.0dBs IP-BUS:+2.
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FM(30%):-30.0dBs AM(30%):-30.
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E F FM:-5.9dBs AM:-5.9dBs IP-BUS:+10.3dBs CD:+10.1dBs A-a A-b B A TUNER AMP UNIT A A-b 16 1 2 REAR L CH REAR R CH FM:-6.66dBs AM:-6.66dBs IP-BUS:+9.54dBs CD:+9.
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1C 5 Decimal points for resistor and capacitor fixed values are expressed as : 2.2 ← 2R2 0.022 ← R022 6 FR+ RR+ FR— RR— FL+ RL+ FL— RL— B.RE A G BACK 7 3 4 7 A-a A-b > FUSE 10A CEK1208 6 The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. NOTE : Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors.
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1 A 2 3 4 3 4 3.
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5 6 7 CEL1651 CEL1651 B CN1951 6 150 150 150 150 SML-310PT x12 5 7 8 A B C D E F C DEH-P2550/XM/ES 8 19
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1 2 3 4 3.4 CD MECHANISM MODULE Pickup Unit(Service)(P10) A # F B F T T T T F F T T F T T F F F F F T T ! C 0 1 9 D MOTOR DRIVER @ S T SPINDLE MOTOR LOADING/CARRIAGE MOTOR M2 CXB8933 E 7 S M1 CXB6007 5 C F S 8 6 C 3 C C C F F T S S T 3.
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6 5 8 7 A F TRACKING SERVO LINE C CARRIAGE SERVO LINE S SPINDLE SERVO LINE F T C S T SIGNAL LINE FOCUS SERVO LINE B SWITCHES: CD CORE UNIT S901 : HOME SWITCH.....ON-OFF S902 : CLAMP SWITCH....ON-OFF S903 : DSCSNS SWITCH....ON-OFF S904 : 12EJ SWITCH....ON-OFF S905 : 8EJ SWITCH....ON-OFF The underlined indicates the switch position.
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1 2 - Waveforms A 1 DSCSNS 2 CLCONT 3 LOEJ 4 VD B 5V/div 5V/div 5V/div 10V/div 3 4 Note : 1. The encircled numbers denote measuring points in the circuit diagram. 2. Reference voltage REFO1(1.65V) 500ms/div 1 DSCSNS 2 CLCONT 3 LOEJ 4 VD 5V/div 5V/div 5V/div 10V/div 500ms/div 5 SIN 6 CIN 7 TIN 1V/div 2s/div 500mV/div 500mV/div When loading a 12cm CD When loading an 8cm CD When setting up after loading a 12cm CD-DA disc Ref.: GND Ref.: GND Ref.
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6 5 8 7 A # RFAGC 0 TE 7 TIN 1V/div 500ms/div # RFAGC 500mV/div 0 TE 500mV/div 7 TIN 1V/div 5ms/div 500mV/div 500mV/div # RFAGC 7 TIN 0 TE 8 FIN 1V/div 1V/div 1V/div 1V/div 500µs/div 32 Track Jump 100(32x3) Track Jump When reproducing black dots(1mm) Ref.: REFO Ref.: REFO Ref.
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1 2 3 4 4. PCB CONNECTION DIAGRAM 4.1 TUNER AMP UNIT A NOTE FOR PCB DIAGRAMS 1.The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram. 2.Viewpoint of PCB diagrams Connector A TUNER AMP UNIT CORD ASSY WIRED REMOTE Capacitor IP-BUS SIDE A B P.C.
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5 6 8 7 A SIDE A IC,Q PRE OUT B ANTENNA FM/AM TUNER UNIT R9403 R9405 C D E B CN1950 F FRONT A 25 DEH-P2550/XM/ES 5 6 7 8
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1 A A 2 3 4 3 4 TUNER AMP UNIT IC,Q B C D E F A 26 DEH-P2550/XM/ES 1 2
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5 6 7 8 A SIDE B B C D E F A 27 DEH-P2550/XM/ES 5 6 7 8
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1 2 3 4 4.
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6 5 7 8 4.
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1 2 3 4 4.
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6 5 D 8 7 SIDE B CD CORE UNIT(S10) A 8EJ 12EJ DSCSNS CLAMP B C D E F D 31 DEH-P2550/XM/ES 5 6 7 8
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1 A 2 3 4 5. ELECTRICAL PARTS LIST NOTES: - Parts whose parts numbers are omitted are subject to being not supplied. - The part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS.....) CKS....., CCS....., CSZS..... B =====Circuit Symbol and No.===Part Name --- ----------------------------------------------- A Part No.
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5 6 7 8 =====Circuit Symbol and No.===Part Name --- ----------------------------------------------- Part No. ------------------------- =====Circuit Symbol and No.===Part Name --- ----------------------------------------------- Part No.
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1 A C 3 Part No. ------------------------- =====Circuit Symbol and No.
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5 6 7 =====Circuit Symbol and No.===Part Name --- ----------------------------------------------- Part No.
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1 2 3 4 6. ADJUSTMENT 6.1 CD ADJUSTMENT A B 1) Cautions on adjustments • In this product the single voltage (3.3V) is used for the regulator. The reference voltage is the REFO1 (1.65V) instead of the GND. If you should mistakenly short the REFO1 with the GND during adjustment, accurate voltage will not be obtained, and the servo’s misoperation will apply excessive shock to the pickup. To avoid such problems: a.
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6 5 8 7 - Flow Chart A [4]+[6]+Reset [KEY] Test Mode In Contents Display [CD]or[SOURCE] Source On TRK MIN [BAND] [3] Power On (T.Offset is adjusted) (T.
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1 2 3 4 6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT A • Note : The grating angle of the PU unit cannot be adjusted after the PU unit is changed. The PU unit in the CD mechanism module is adjusted on the production line to match the CD mechanism module and is thus the best adjusted PU unit for the CD mechanism module. Changing the PU unit is thus best considered as a last resort. However, if the PU unit must be changed, the grating should be checked using the procedure below.
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5 6 7 8 Ech → Xch 20mV/div, AC Fch → Ych 20mV/div, AC Grating waveform 0° A 30° B 45° 60° C D 75° 90° E F 39 DEH-P2550/XM/ES 5 6 7 8
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1 2 3 4 6.3 ERROR MODE - Error Messages A If a CD is not operative or stopped during operation due to an error, the error mode is turned on and cause(s) of the error is indicated with a corresponding number. This arrangement is intended at reducing nonsense calls from the users and also for facilitating trouble analysis and repair work in servicing.
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5 6 8 7 7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 DISASSEMBLY A - Removing the Case (not shown) 1. Remove the Case. - Removing the CD Mechanism Module (Fig.1) 1 CD Mechanism Module Remove the four screws. B Disconnect the connector and then remove the CD Mechanism Module. 1 1 - Removing the Grille Assy (Fig.1) 2 Remove the two screws and then remove the Grille Assy. 1 C 1 2 2 Grille Assy Fig.1 - Removing the Tuner Amp Unit (Fig.2) 1 Remove the screw. 2 2 2 Remove the three screws.
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1 2 3 4 - How to hold the Mechanical Unit 1. Hold the top and bottom frame. 2. Do not squeeze top frame's front portion too tight, because it is fragile. A B Do not squeeze. - Removing the Upper and Lower Frames C 1. With a disc clamped, remove the four springs (A), the two springs (B), the two springs (C), and the four screws. 2. To remove the upper frame, open it on the fulcrum A. 3. While lifting the carriage mechanism, remove the three dampers. 4.
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ANTENNA JACK REAR OUTPUT 1. FR+ 2. RR3. FR4. RR+ 5. FL+ 6. RL+ 7. FL8. RL- 10A 5 6 9. NC 10. NC 11. B.REM 12. NC 13. NC 14. ACC 15. GND 16. BACK UP 1 3 5 7 9 11 13 15 2 4 6 8 10 12 14 16 1. BUS+ 2. GND 3. GND 4. NC 5. BUS6. GND 7. BUS L+ INPUT 8. ASENB 9. BUS R+ INPUT 10. BUS R- INPUT 11. BUS L- INPUT 1 2 3 4 7 8 9 10 11 5 6 5 6 7 7 8 7.1.
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1 2 3 4 7.2 PARTS 7.2.1 IC A B C D E F - Pin Functions(PE5341C) Pin No.
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6 5 Pin No.
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1 A 2 3 4 PAL007A sw_vcc Protector; Over voltage 1 TAB Reference amp_vcc 6 OUT1- 7 12 13 IN4 14 IN3 15 AC-GND 16 OUT3+ 17 P-GND3 18 OUT3- 19 VCC OUT4+ 20 21 MUTE 22 OUT4- 23 P-GND4 24 25 SWITCH amp_vcc S-GND Protector; Short circuit Offset Detection Offset Detection -+ 11 IN2 +- 10 IN1 -+ 9 SVR +- 8 OUT1+ Offset Detection -+ P-GND1 Protector; Thermal +- 5 VCC Offset Detection -+ OUT2+ Stand-by Circuit +- STBY 4 D OUT2- 3 C 2 B P-GND2
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6 5 8 7 - Pin Functions (PD6340A) Pin No.
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1 2 3 4 - Pin Functions(UPD63712GC) A B C D E F Pin No.
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6 5 Pin No.
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1 2 3 4 - Pin Functions(BA5996FP) A B C Pin No.
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6 5 8 7 - FM/AM Tuner Unit 5V OSC AM ANT 1 A NC NC NC 18 19 20 21 NC 14 DO NC 11 CE1 DI SL IC 3 EEPROM 5.0V 10 9 8 CK 5 ROM_VDD CE2 WC 13 IC 5 3.3V ← 7 6 LPF FMRF ATT Rch 3 IC 1 3.3V FM ANT ATT FMRF ANT adj 24 IC 2 2.5V B Lch MIXER, IF AMP 23 DET, FM MPX RF adj T51 CF52 AUDIOGND NC 15 22 16 4 VDD_3.3 DGND 12 VCC OSCGND 2 3.3V IC 4 3.3V 2.5V 2.5V ← RFGND CF51 17 C No.
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1 2 3 4 3 4 DEH-P2550/XM/ES 52 SEG39 COMMON SEGMENT SEG38 SEG37 SEG36 F COM3 COM3 COM2 COM2 COM1 COM1 COM0 COM0 SEG35 SEG34 SEG33 E SEG32 SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 D SEG24 SEG23 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 C SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 B SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0 A - LCD(CAW1759) 7.2.
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6 5 7 8 7.3 OPERATIONAL FLOW CHART A Power ON VDD=5V Pin 41 bsens Pin 93 B bsens=L asens Pin 92 asens=L dsens Pin 90 C dsens=L ASENBO←H Pin 71 CSENS Pin 77 - CSENS < = 2V, 3V < = CSENS Last source returns. CD loading functions are available. Keys except for EJECT key are not available. 2V < CSENS < 3V Starts communication with Grille microcomputer. 300ms swvdd←H Pin 1 Source keys operative D 300ms In case of the above signal, the communication with Grille microcomputer may fail.
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1 2 3 4 3 4 7.
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5 6 7 8 8.
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1 2 1 2 3 4 3 4 A B C D E F 56 DEH-P2550/XM/ES
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5 6 7 8 A B C D E F 57 DEH-P2550/XM/ES 5 6 7 8
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F D E 1 CXX1644 CXX1645 Fixing screw CXX1646 Holder 2 58 2 4. Fix the front panel to the unit using fixing screws. 3. Flip the holders into upright positions. 2. Replace the front panel to the unit. Holder 1. Attach the holders to both sides of the front panel. If you do not operate the Detaching and Replacing the Front Panel Function, use the supplied fixing screws and fix the front panel to this unit.
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5 10. Fuse 6 7 9. Black (ground) To vehicle (metal) body. 27. Rear speaker 22. Rear speaker 20. Left 15. Front speaker 24. Green/black 23. Green 17. White/black 16. White 26. Violet/black 25. Violet 19. Gray/black 18. Gray 27. Rear speaker 22. Rear speaker 21. Right 15. Front speaker 14. System remote control 12. Power amp (sold separately) 7 29. Perform these connections when using the optional amplfier. 28.