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CD RECEIVER
DEH-2050MPA
DEH-2050MPG
DEH-2090MP
This service manual should be used together with the following manual(s):
Model No.
Order No.
CX-3195
CRT3815
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
Mech.Module
S10.5COMP2
CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
DEH-2050MPA/XN/EC
/XN/EC
/XN/ID
Remarks
ORDER NO.
CRT4045
/XN/EC
K-ZZU. OCT. 2007 Printed in Japan
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Table of Contents
Related Manuals for Pioneer DEH-2050MPA
Summary of Contents for Pioneer DEH-2050MPA
- 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.
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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. DEH-2050MPA/XN/EC... - 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. DEH-2050MPA/XN/EC...
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Page 4: Table Of Contents
10.2 KEYBOARD UNIT..........................38 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 DEH-2050MPA/XN/EC... -
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. DEH-2050MPA/XN/EC... -
Page 6: Specifications
2. SPECIFICATIONS 2.1 SPECIFICATIONS Backup current ........2 mA or less 2.2 DISC/CONTENT FORMAT DEH-2050MPA/XN/EC... -
Page 7: Panel Facilities
2.3 PANEL FACILITIES DEH-2050MPA/XN/EC... -
Page 8: Panel Facilities
2.4 PANEL FACILITIES - Connection Diagram DEH-2050MPA/XN/EC... -
Page 9: Basic Items For Service
No scratches or dirt on its appearance after receiving it 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 DEH-2050MPA/XN/EC... -
Page 10: Pcb Locations
3.2 PCB LOCATIONS CD Core Unit(S10.5) Tuner Amp Unit Keyboard Unit Unit Number YWM5238(EC) Unit Number YWM5234(ID) Unit Name Tuner Amp Unit Unit Number Unit Name Keyboard Unit Unit Number CWX3514 Unit Name CD Core Unit(S10.5COMP2) DEH-2050MPA/XN/EC... -
Page 11: Jigs List
GEM1045 CD Mechanism Module 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 Cleaning paper : GED-008 DEH-2050MPA/XN/EC... -
Page 12: Block Diagram
DVDD4 /PUEN SPINDLE MOTOR RESET /RESET CDRESET /RESET LOEJ LOEJ CLCONT CLCONT LCOP LOAD/ CARRIAGE BRST,BRXEN,BSRQ,BDATA,BSCK BRST,BRXEN,BSRQ MOTOR LCOM CONT CONT BDATA,BSCK Q991 CD VD B.UP Q992 12EJ DSCSNS HOME PDL3 S904 S905 S901 12EJ HOME S903 DSCSNS VDSENS DEH-2050MPA/XN/EC... - Page 13 Q822 ILMPW SWVDD SWD5V SWVDD S1830 KEY MATRIX PDL3 SOURCE SOURCE S1831 ROT1 ROT1 ROT0 ROT0 KEY DATA VOLUME X1801 5MHz DPDT DPDT DPDT DPDT/SELF LCD DRIVER/ KYDT KEY CONTROLLER KYDT KEYDT/SELF KYDT IC 1801 SWVDD VLCD PD6340A LCD1801 DEH-2050MPA/XN/EC...
- Page 14 Chip enable for FE_IC "High" active 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.) DEH-2050MPA/XN/EC...
- Page 15 - LCD(CAW1930) DEH-2050MPA/XN/EC...
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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.) DEH-2050MPA/XN/EC... -
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. DEH-2050MPA/XN/EC... -
Page 18: Connector Function Description
5.3 CONNECTOR FUNCTION DESCRIPTION Pin No. Pin No. B. UP B.REM DEH-2050MPA/XN/EC... -
Page 19: Service Mode
1k ohms in series. • 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. DEH-2050MPA/XN/EC... - 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-2050MPA/XN/EC...
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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 Reloading the disc changes the clamp position and may decrease the "wobble". DEH-2050MPA/XN/EC... - Page 22 Ech → Xch 20 mV/div, AC Grating waveform Fch → Ych 20 mV/div, AC 0 degrees 30 degrees 45 degrees 60 degrees 75 degrees 90 degrees DEH-2050MPA/XN/EC...
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Page 23: Disassembly
Fig.1 Grille Assy 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 Fig.2 DEH-2050MPA/XN/EC... - Page 24 Upper Frame. 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. Damper Damper Carriage Mechanism Lower Frame DEH-2050MPA/XN/EC...
- 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. Poly Washer Change Arm Pickup Lock Arm Inner Holder Feed Screw Planet Gear Pickup Rack Chassis Pickup DEH-2050MPA/XN/EC...
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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 DEH-2050MPA/XN/EC... - Page 27 Screw Assy(2050MPA,2090MP) CEA3849 Screw(2050MPA,2090MP) CBA1650 Protector(ID) YHP5040 Owner's Manual(ID) YRB5047 Polyethylene Bag(2050MPA,2090MP)CEG-127 Case Assy YXB5009 Screw(2050MPA,2090MP) CRZ50P090FTC Battery CEX1065 Screw(2050MPA,2090MP) TRZ50P080FTC Polyethylene Bag(ID) CEG1160 Handle(ID) CND3707 Remote Control Assy CXC5719 Bush(2050MPA,2090MP) CNV3930 Owner's Manual,Installation Manual Part No. Language YRB5047 English DEH-2050MPA/XN/EC...
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Page 28: Exterior
9.2 EXTERIOR DEH-2050MPA/XN/EC... - Page 29 CND3466 Terminal(CN402) VNF1084 Terminal(CN601) VNF1084 Button(DETACH) CAC4836 Spring CBH2367 Spring CBH2961 Spring CBH2962 Cover CNN1665 Panel CNS9206 CNV9311 CNV9312 Chassis Unit YXA7391 CD Mechanism Module(S10.5) CXK5763 Screw ISS26P055FTC Transistor(Q991) 2SD2396 IC(IC301) PAL007C IC(IC911) BA4918-V12 Detachable Assy(2050MPA/XN/EC)YXA5315 Grille Assy(2050MPG/XN/EC) YXA5376 DEH-2050MPA/XN/EC...
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Page 30: Cd Mechanism Module
9.3 CD MECHANISM MODULE DEH-2050MPA/XN/EC... - Page 31 Bracket CND2583 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 Guide CNV7361 Gear CNV7595 Guide CNV7799 CNV7805 DEH-2050MPA/XN/EC...
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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-2050MPA/XN/EC... - Page 33 TUNER AMP UNIT CD:+0.5dBs FM:-14.33dBs AM: -25.5dBs > > CEK1208 B.UP B.REM DEH-2050MPA/XN/EC...
- Page 34 DEH-2050MPA/XN/EC...
- Page 35 DEH-2050MPA/XN/EC...
- Page 36 DEH-2050MPA/XN/EC...
- Page 37 DEH-2050MPA/XN/EC...
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Page 38: Keyboard Unit
10.2 KEYBOARD UNIT GP1UX51RK 2050M SML-3 D1803-D1821 R1803-R1805 R1806,R1807 DEH-2050MPA/XN/EC... - Page 39 KEYBOARD UNIT CN831 2050MPA/XN/EC 2050MPG/XN/EC 2090MP/XN/ID CL-195PG-CD CL-195SR-CD SML-310YT(KL) -D1821 (PURE GREEN) (SUPER RED) (AMBER) 3-R1805 ,R1807 DEH-2050MPA/XN/EC...
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Page 40: Cd Mechanism Module(Guide Page)
10.3 CD MECHANISM MODULE(GUIDE PAGE) PICKUP UNIT(P10.5)(SERVICE) 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 DEH-2050MPA/XN/EC... - Page 41 CD CORE UNIT(S10.5COMP2) SIGNAL LINE FOCUS SERVO LINE TRACKING SERVO LINE CARRIAGE SERVO LINE SPINDLE SERVO LINE CN651 & DEH-2050MPA/XN/EC...
- Page 42 DEH-2050MPA/XN/EC...
- Page 43 DEH-2050MPA/XN/EC...
- Page 44 DEH-2050MPA/XN/EC...
- Page 45 DEH-2050MPA/XN/EC...
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Page 46: Waveforms
500 mV/div 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 Mode: Mode: Mode: TEST TEST TEST DEH-2050MPA/XN/EC... - Page 47 4LOEJ 312SNS 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 DEH-2050MPA/XN/EC...
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Page 48: Pcb Connection Diagram
For further information for WIRED REMOTE INPUT(EC) CORD ASSY respective destinations, be sure to check with the schematic dia- gram. 2.Viewpoint of PCB diagrams Capacitor Connector SIDE A SIDE B P.C.Board Chip Part CN701 CN1801 DEH-2050MPA/XN/EC... - Page 49 SIDE A ASSY RCA OUTPUT ANTENNA FRONT DEH-2050MPA/XN/EC...
- Page 50 TUNER AMP UNIT SCET TESTIN DEH-2050MPA/XN/EC...
- Page 51 SIDE B DEH-2050MPA/XN/EC...
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Page 52: Keyboard Unit
11.2 KEYBOARD UNIT KEYBOARD UNIT SIDE A DEH-2050MPA/XN/EC... - Page 53 KEYBOARD UNIT SIDE B CN831 DEH-2050MPA/XN/EC...
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Page 54: Cd Core Unit(S10.5Comp2)
11.3 CD CORE UNIT(S10.5COMP2) CD CORE UNIT(S10.5COMP2) SIDE A CN651 PICKUP UNIT(P10.5)(SERVICE) LOADING /CARRIAGE MOTOR SPINDLE MOTOR DEH-2050MPA/XN/EC... - Page 55 CD CORE UNIT(S10.5COMP2) SIDE B DEH-2050MPA/XN/EC...
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Page 56: Electrical Parts List
R 151 (B,89,95) RAB4C102J R 156 (B,91,88) RS1/16S681J D 832 (B,75,8) Diode FTZ6R8E R 157 (B,94,88) RS1/16S681J D 851 (B,59,102) Diode(EC) MC2848-11 R 162 (B,139,101) RS1/16S102J D 901 (A,49,110) Diode MPG06G-6415G3 R 163 (B,106,106) RS1/16S102J D 902 (A,49,107) Diode MPG06G-6415G3 DEH-2050MPA/XN/EC... - Page 57 R 672 (B,110,46) RS1/16S104J C 353 (A,145,119) CEJQ2R2M50 C 354 (A,143,112) CEJQ2R2M50 R 673 (B,137,27) RAB4C104J C 359 (B,164,137) CCSQCH471J50 R 674 (B,132,27) RS1/16S104J C 402 (B,142,100) CKSRYB103K50 R 675 (B,94,59) RS1/16S473J C 404 (A,150,97) CEJQ101M10 R 677 (B,122,22) RS1/16S104J DEH-2050MPA/XN/EC...
- Page 58 (A,52,114) 3 300 µF/16 V CCH1732 RESISTORS C 911 (A,59,62) CEJQ100M16 C 912 (A,48,66) CEAT102M16 R 1801 (B,29,89) RS1/16S222J C 913 (B,28,71) CKSRYB104K16 R 1802 (B,27,93) RS1/16S222J C 914 (A,52,62) CEAT221M10 R 1803 (B,19,68) RS1/4SA681J C 915 (A,46,55) CEJQ100M16 DEH-2050MPA/XN/EC...
- Page 59 R 1803 (B,19,68) RS1/4SA821J R 234 (B,30,61) RS1/16SS473J R 1804 (B,24,68) RS1/4SA821J R 1805 (B,36,96) RS1/4SA821J R 235 (A,25,63) RS1/16SS473J R 239 (B,26,48) RS1/16SS473J R 1806 (B,36,100) RS1/4SA681J R 240 (B,10,31) RS1/16SS473J R 1807 (B,22,68) RS1/4SA681J R 241 (B,9,32) RS1/16SS103J DEH-2050MPA/XN/EC...
- Page 60 C 303 (A,35,19) CKSSYB472K25 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 Pickup Unit(P10.5)(Service) CXX1942 Motor Unit(SPINDLE) CXC7134 Motor Unit(LOADING/CARRIAGE) CXC4026 DEH-2050MPA/XN/EC...