Pioneer DEH-2050MP/XN/ES Service Manual
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Pioneer DEH-2050MP/XN/ES Service Manual

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3 7 63 1515 0
CD RECEIVER
DEH-2050MP
DEH-2050MPG
DEH-2050MPG
TE
L 13942296513
This service manual should be used together with the following manual(s):
Model No.
CX-3195
www
For details, refer to "Important Check Points for Good Servicing".
.
PIONEER CORPORATION
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
PIONEER CORPORATION 2007
http://www.xiaoyu163.com
Order No.
Mech.Module
CRT3815
S10.5COMP2
x
ao
y
i
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
http://www.xiaoyu163.com
8
DEH-2050MP/XN/ES
/XN/ES
/XN/ES1
Q Q
3
6 7
1 3
CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly
u163
.
2 9
9 4
2 8
1 5
0 5
8
2 9
9 4
Remarks
m
co
K-ZZU. OCT. 2007 Printed in Japan
9 9
ORDER NO.
CRT4044
/XN/ES
2 8
9 9

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Summary of Contents for Pioneer DEH-2050MP/XN/ES

  • Page 1 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 PIONEER CORPORATION 2007 K-ZZU.

  • Page 2: Safety Information

    2. During repair or tests, do not view laser beam for 10 seconds or longer. CAUTION Danger of explosion if battery is incorrectly replaced. Replaced only with the same or equivalent type recommended by the manufacture. Discord used batteries according to the manufacture's instructions. L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 3 To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be installed before shipment. Please be sure to follow this method especially if it is specified in this manual. u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 4: Table Of Contents

    10.3 CD MECHANISM MODULE(GUIDE PAGE) ..................40 10.4 WAVEFORMS ............................46 11. PCB CONNECTION DIAGRAM ........................48 11.1 TUNER AMP UNIT..........................48 11.2 KEYBOARD UNIT..........................52 11.3 CD CORE UNIT(S10.5COMP2)......................54 12. ELECTRICAL PARTS LIST .......................... 56 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 5: Service Precautions

    Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting temperatures (hard to melt/easy to harden). The following lead-free solders are available as service parts: Parts numbers of lead-free solder: GYP1006 1.0 in dia. GYP1007 0.6 in dia. GYP1008 0.3 in dia. u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 6: Specifications

    2. SPECIFICATIONS 2.1 SPECIFICATIONS 3 7 63 1515 0 Backup current ........2 mA or less L 13942296513 2.2 DISC/CONTENT FORMAT u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 7: Panel Facilities

    2.3 PANEL FACILITIES 3 7 63 1515 0 L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 8: Connection Diagram

    2.4 CONNECTION DIAGRAM 3 7 63 1515 0 - Connection Diagram L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 9: Basic Items For Service

    See the table below for the items to be checked regarding video and audio: Item to be checked regarding audio Distortion Noise Volume too low Volume too high Volume fluctuating Sound interrupted L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 10: Pcb Locations

    L 13942296513 Keyboard Unit Unit Number YWM5234 Unit Name Tuner Amp Unit Unit Number (2050MP/XN/ES) Unit Name Keyboard Unit Unit Number (2050MPG/XN/ES) Unit Number (2050MPG/XN/ES1) Unit Name Keyboard Unit Unit Number CWX3514 Unit Name CD Core Unit(S10.5COMP2) u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 11: Jigs List

    Before shipping out the product, be sure to clean the following portions by using the prescribed cleaning tools: Portions to be cleaned Cleaning tools CD pickup lenses Cleaning liquid : GEM1004 L 13942296513 Cleaning paper : GED-008 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 12: Block Diagram

    SPINDLE MOTOR RESET /RESET CDRESET /RESET LOEJ LOEJ CLCONT CLCONT LCOP LOAD/ CARRIAGE BRST,BRXEN,BSRQ BRST,BRXEN,BSRQ,BDATA,BSCK MOTOR LCOM CONT CONT BDATA,BSCK Q991 CD VD B.UP Q992 12EJ DSCSNS HOME PDL3 S904 S905 S901 12EJ HOME S903 DSCSNS VDSENS u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 13 SWVDD SWD5V SWVDD S1830 KEY MATRIX PDL3 SOURCE SOURCE S1831 ROT1 ROT1 u163 ROT0 ROT0 KEY DATA VOLUME X1801 5MHz DPDT DPDT DPDT/SELF DPDT LCD DRIVER/ KEY CONTROLLER KYDT KYDT KYDT KEYDT/SELF IC 1801 SWVDD VLCD LCD1801 PD6340A DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 14 18 DO Data Out Data output 19 CE2 Chip Enable-2 Chip enable for EEPROM "Low" active. in power ON/OFF, please turn CE2 into "High" (= VDD). 20 SLOUT Signal Level Output Output of FM/AM signals level (D.C.) u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 15 - LCD(CAW1930) 3 7 63 1515 0 L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 16: Diagnosis

    In case of the above signal, the communication Source keys with Grille microcomputer may fail. operative If the time interval is not 300 msec, the oscillator may be defective. Source ON SYSPW H Pin 15 Completes power-on operation.(After that, proceed to each source operation.) u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 17: Error Code List

    Remarks: Mechanical errors are not displayed (because a CD is turned off in these errors). Unreadable TOC does not constitute an error. An intended operation continues in this case. Upper digits of an error code are subdivided as shown below: 1x: Setup relevant errors, 3x: Search relevant errors, Ax: Other errors. u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 18: Connector Function Description

    5.3 CONNECTOR FUNCTION DESCRIPTION 3 7 63 1515 0 Pin No. Pin No. B. UP L 13942296513 B.REM u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 19: Service Mode

    • The load and eject operation is not guarantied with the mechanism upside down. If the mechanism is blocked due to mistaken eject operation, reset the product or turn off and on the ACC to restore it. u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 20 • When the power is turned on/off the jump mode is reset to the Single TR (91) while the gain of the RFAMP is reset to 0 dB. At the same time all the self-adjusting values shall return to the default setting. DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 21: Checking The Grating After Changing The Pickup Unit

    Because of eccentricity in the disc and a slight misalignment of the clamping center the grating waveform may be seen to "wobble" ( the phase difference changes as the disc rotates). The angle specified above indicates the average angle. Hint u163 Reloading the disc changes the clamp position and may decrease the "wobble". DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 22 3 7 63 1515 0 Ech → Xch 20 mV/div, AC Grating waveform Fch → Ych 20 mV/div, AC 0 degrees 30 degrees 45 degrees 60 degrees L 13942296513 75 degrees 90 degrees u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 23: Disassembly

    L 13942296513 Removing the Tuner Amp Unit (Fig.2) Remove the two screws. Remove the two screws. Straighten the tabs at two locations indicated. Remove the two screws and then remove the Tuner Amp Unit. Tuner Amp Unit u163 Fig.2 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 24 3. While lifting the Carriage Mechanism, remove it from the three Dampers. Caution: When assembling, be sure to apply some alcohol to the Dampers and assemble the mechanism in a clamped state. L 13942296513 Damper Damper Carriage Mechanism Lower Frame u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 25 Assemble the sub unit side of the Pickup, taking the plate (Chassis) in-between. When treating the leads of the Load Carriage Motor Assy, do not make them loose over the Feed Screw. L 13942296513 Poly Washer Change Arm Pickup Lock Arm Inner Holder Feed Screw Planet Gear Pickup Rack Chassis Pickup u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 26: Each Setting And Adjustment

    Screw 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.) 9.1 PACKING L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 27 17-5 Service Network(2050MPG/XN/ES1) CRY1251 Polyethylene Bag CEG1373 Case Assy YXB5009 Unit Box(2050MP/XN/ES) YHG5313 Battery CEX1065 Unit Box(2050MPG/XN/ES) YHG5314 Remote Control Assy CXC5719 Unit Box(2050MPG/XN/ES1) YHG5336 Owner's Manual,Installation Manual Part No. Language YRD5145, English, Spanish, Portuguese(B), Traditional Chinese YRD5147 L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 28: Exterior

    9.2 EXTERIOR 3 7 63 1515 0 L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 29 Panel CNS9206 CNV9311 CNV9312 Chassis Unit CXC7391 CD Mechanism Module(S10.5) CXK5763 Screw ISS26P055FTC Transistor(Q991) 2SD2396 IC(IC301) PAL007C IC(IC911) BA4918-V12 Grille Assy(2050MP/XN/ES) YXA5374 Grille Assy(2050MPG/XN/ES) YXA5367 u163 Grille Assy(2050MPG/XN/ES1) YXA5367 Grille Unit(2050MP/XN/ES) YXA5334 Grille Unit(2050MPG/XN/ES) YXA5336 Grille Unit(2050MPG/XN/ES1) YXA5336 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 30: Cd Mechanism Module

    9.3 CD MECHANISM MODULE 3 7 63 1515 0 L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 31 CND2584 Lever CND2585 CND2586 Bracket CND2587 CND2588 Lever CND2589 Holder CNV7201 Gear CNV7207 Gear CNV7208 Gear CNV7209 Gear CNV7210 Gear CNV7211 Gear CNV7212 Rack CNV7214 CNV7216 Roller CNV7218 Gear CNV7219 u163 Guide CNV7361 Gear CNV7595 Guide CNV7799 CNV7805 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 32: Schematic Diagram

    No differentiation is made between chip capacitors and 0.022 R022 discrete capacitors. 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. DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 33 3 7 63 1515 0 TUNER AMP UNIT N701 CD:+0.5dBs FM:-14.33dBs AM: -25.5dBs > L 13942296513 > CEK1208 B.UP B.REM u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 34 3 7 63 1515 0 L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 35 3 7 63 1515 0 L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 36 3 7 63 1515 0 L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 37 3 7 63 1515 0 L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 38: Keyboard Unit

    10.2 KEYBOARD UNIT 3 7 63 1515 0 GP1UX51RK L 13942296513 D1803-D1821 R1803-R1805 u163 R1806,R1807 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 39 3 7 63 1515 0 KEYBOARD UNIT CN831 L 13942296513 2050MPG/XN/ES 2050MP/XN/ES 2050MPG/XN/ES1 CL-195SR-CD CL-195PG-CD D1803-D1821 (SUPER RED) (PURE GREEN) R1803-R1805 u163 R1806,R1807 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 40: Cd Mechanism Module(Guide Page)

    3 7 63 1515 0 PICKUP UNIT(P10.5)(SERVICE) L 13942296513 SWITCHES: CD CORE UNIT(S10.5COMP2) S901:HOME SWITCH..ON-OFF S903:DSCSNS SWITCH..ON-OFF S904:12EJ SWITCH.....ON-OFF S905:8EJ SWITCH....ON-OFF The underlined indicates the switch position. M1 CXC7134 SPINDLE MOTOR M2 CXC4026 LOADING/CARRIAGE MOTOR CD DRIVER u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 41 3 7 63 1515 0 CD CORE UNIT(S10.5COMP2) SIGNAL LINE FOCUS SERVO LINE TRACKING SERVO LINE CARRIAGE SERVO LINE SPINDLE SERVO LINE L 13942296513 CN651 & u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 42 3 7 63 1515 0 L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 43 3 7 63 1515 0 L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 44 3 7 63 1515 0 L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 45 3 7 63 1515 0 L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 46: Waveforms

    2 ms/div 1 V/div s/div µ %RFAGC 500 mV/div 500 mV/div 500 mV/div 9TIN 500 mV/div Focus Search waveform Track Open waveform 1 Track Jump waveform Ref.: Ref.: Ref.: REFO REFO REFO u163 Mode: Mode: Mode: TEST TEST TEST DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 47 5 V/div 5 V/div 1 V/div 4LOEJ 0FIN 5 V/div 1 V/div 12 cm CD Eject operation 8 cm CD Eject operation Black dot(800 µm) during play Ref.: Ref.: Ref.: REFO Mode: Mode: Mode: Normal Normal Normal u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 48: Pcb Connection Diagram

    For further information for CORD ASSY respective destinations, be sure to check with the schematic dia- gram. 2.Viewpoint of PCB diagrams Capacitor Connector SIDE A SIDE B Chip Part P.C.Board L 13942296513 CN701 CN1801 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 49 3 7 63 1515 0 SIDE A ASSY RCA OUTPUT ANTENNA L 13942296513 u163 FRONT DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 50 3 7 63 1515 0 TUNER AMP UNIT L 13942296513 SCET TESTIN u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 51 3 7 63 1515 0 SIDE B L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 52: Keyboard Unit

    11.2 KEYBOARD UNIT 3 7 63 1515 0 KEYBOARD UNIT SIDE A L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 53 3 7 63 1515 0 KEYBOARD UNIT SIDE B L 13942296513 CN831 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 54: Cd Core Unit(S10.5Comp2)

    11.3 CD CORE UNIT(S10.5COMP2) 3 7 63 1515 0 CD CORE UNIT(S10.5COMP2) SIDE A CN651 PICKUP UNIT(P10.5)(SERVICE) L 13942296513 LOADING /CARRIAGE MOTOR SPINDLE MOTOR u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 55 3 7 63 1515 0 CD CORE UNIT(S10.5COMP2) SIDE B L 13942296513 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

  • Page 56: Electrical Parts List

    (B,94,88) RS1/16S681J D 302 (A,54,124) Diode MPG06G-6415G3 R 162 (B,139,101) RS1/16S102J D 832 (B,75,8) Diode FTZ6R8E R 163 (B,106,106) RS1/16S102J D 901 (A,49,110) Diode MPG06G-6415G3 R 201 (B,125,130) RS1/16S103J D 902 (A,49,107) Diode MPG06G-6415G3 R 202 (B,132,134) RS1/16S153J DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 57 (B,161,45) CCSRCH100D50 R 673 (B,137,27) RAB4C104J C 601 (B,120,27) CKSRYB105K10 R 674 (B,132,27) RS1/16S104J C 602 (B,121,30) CKSRYB103K50 R 675 (B,94,59) RS1/16S473J R 677 (B,122,22) RS1/16S104J C 603 (B,123,28) CKSRYB103K50 R 803 (B,86,18) RS1/16S222J C 605 (B,108,74) CKSRYB104K16 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 58 CKSRYB104K16 Unit Number : (2050MPG/XN/ES) C 991 (B,11,108) CKSRYB473K25 u163 Unit Number : (2050MPG/XN/ES1) C 992 (A,12,97) CEJQ101M10 Unit Name : Keyboard Unit MISCELLANEOUS Unit Number : (2050MP/XN/ES) Unit Name : Keyboard Unit IC 1801 (B,26,121) IC PD6340A DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 59 CEVW220M6R3 C 210 (B,29,42) CKSSYB104K10 IC 201 (A,34,46) IC PE5547A C 211 (A,27,34) CKSSYB104K10 IC 301 (A,27,14) IC BA5839FP Q 101 (B,56,72) Transistor 2SA1577 C 212 (B,29,32) CKSRYB104K16 Q 102 (B,47,57) Chip Transistor 2SB1689 C 213 (A,44,37) CKSSYB104K10 DEH-2050MP/XN/ES http://www.xiaoyu163.com...
  • Page 60 C 304 (A,34,21) CKSSYB223K16 C 307 (B,25,9) CKSRYB104K16 C 308 (B,10,27) CKSRYB105K10 C 703 (B,11,37) CCSSCH101J50 C 704 (B,8,36) CKSSYB102K50 C 711 (A,25,26) CKSSYB104K10 Miscellaneous Parts List L 13942296513 Pickup Unit(P10.5)(Service) CXX1942 Motor Unit(SPINDLE) CXC7134 Motor Unit(LOADING/CARRIAGE) CXC4026 u163 DEH-2050MP/XN/ES http://www.xiaoyu163.com...

This manual is also suitable for:

Deh-2050mpg/xn/esDeh-2050mpg/xn/es1

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