Pioneer DEH-2500UI/XNUC Service Manual
Pioneer DEH-2500UI/XNUC Service Manual

Pioneer DEH-2500UI/XNUC Service Manual

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CD RDS RECEIVER
DEH-2500UI
DEH-2500UI
DEH-2500UI
DEH-2550UI
DEH-2550UI
DEH-2550UI
DEH-2590UI
This service manual should be used together with the following manual(s):
Model No.
Order No.
CRT4759
CX-3287
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 2012
Mech. Module
S11.6STD
CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly
1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, Japan
DEH-2500UI/XNUC
/XNEW5
/XMEW5
/XNES
/XMES
/XMES1
/XNID
Remarks
ORDER NO.
CRT5056
/XNUC
K-ZZZ JULY 2012 Printed in Japan

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Summary of Contents for Pioneer DEH-2500UI/XNUC

  • Page 1 PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, 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...
  • Page 2: Safety Information

    The AEL (accessible emission level )of the laser power output is less than CLASS 1 but the laser component is capable of emitting radiation exceeding the limit for CLASS 1. A specially instructed person should do servicing operation of the apparatus. DEH-2500UI/XNUC...
  • Page 3 CAUTION Danger of explosion if battery is incorrectly replaced. Replaced only with the same or equivalent type recommended by the manufacturer. Discord used batteries according to the manufacturer's instructions. DEH-2500UI/XNUC...
  • Page 4: Table Of Contents

    10.2 KEYBOARD UNIT..........................44 10.3 CD CORE UNIT (S11.6STD) ......................... 46 10.4 WAVEFORMS ............................48 11. PCB CONNECTION DIAGRAM........................50 11.1 TUNER AMP UNIT..........................50 11.2 KEYBOARD UNIT ..........................54 11.3 CD CORE UNIT (S11.6STD)........................56 12. ELECTRICAL PARTS LIST .......................... 58 DEH-2500UI/XNUC...
  • 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-2500UI/XNUC...
  • Page 6: Specifications

    2. SPECIFICATIONS 2.1 SPECIFICATIONS DEH-2500UI/XNUC CD player General System........Compact disc audio system Power source......14.4 V DC (10.8 V to 15.1 V allowable) Usable discs .......Compact disc Grounding system ....Negative type Signal-to-noise ratio....94 dB (1 kHz) (IHF-A network) Maximum current consumption Number of channels ...2 (stereo)
  • Page 7 Signal-to-noise ratio....62 dB (IEC-A network) Gain ......+6 dB to –24 dB Phase......Normal/Reverse LW tuner Frequency range ....153 kHz to 281 kHz Usable sensitivity....28 µV (S/N: 20 dB) Signal-to-noise ratio....62 dB (IEC-A network) Note Specifications and the design are subject to modifications without notice. DEH-2500UI/XNUC...
  • Page 8 Specifications and the design are subject to MP3 decoding format ..MPEG-1 & 2 Audio Layer 3 modifications without notice. WMA decoding format ..Ver. 7, 7.1, 8, 9, 10, 11, 12 (2 ch audio) (Windows Media Player) WAV signal format....Linear PCM & MS ADPCM (Non-compressed) DEH-2500UI/XNUC...
  • Page 9: Disc/Content Format

    MP3 decoding format ..MPEG-1 & 2 Audio Layer 3 modifications without notice. WMA decoding format ..Ver. 7, 7.1, 8, 9, 10, 11, 12 (2 ch audio) (Windows Media Player) WAV signal format....Linear PCM & MS ADPCM (Non-compressed) 2.2 DISC/CONTENT FORMAT DEH-2500UI/XNUC...
  • Page 10: Basic Items For Service

    Item to be checked regarding audio Distortion Noise Volume too low Volume too high Volume fluctuating Sound interrupted 3.2 PCB LOCATIONS CD Core Unit (S11.6STD) Tuner Amp Unit Keyboard Unit A:DEH-2500UI/XNUC B:DEH-2500UI/XNEW5 C:DEH-2500UI/XMEW5 D:DEH-2550UI/XNES E:DEH-2550UI/XMES F:DEH-2550UI/XMES1 G:DEH-2590UI/XNID Unit Number QWM3458(A) Unit Number QWM3457(B,C)
  • Page 11: Jigs List

    CD Mechanism Module 3.4 CLEANING 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-2500UI/XNUC...
  • Page 12: Block Diagram

    BD9876EFJ B.UP FLASH ROM IC552 IC681 SYNC SYNC BD2232G-G Q601 :PEB047A8 ASEN VOUT USB5V DDON :PEB046A8 E F G :DEH-2500UI/XNUC :DEH-2550UI/XMES USBCTL :DEH-2500UI/XNEW5 :DEH-2550UI/XMES1 USBFLG :DEH-2500UI/XMEW5 :DEH-2590UI/XNID :DEH-2550UI/XNES SSEN REGULATOR IC IC911 PICKUP UNIT BA49183-V12 CD CORE UNIT(S11.6 STD) (P10.6)(SERVICE)
  • Page 13 LCD DRIVER/ KST3 KEY CONTROLLER IC801 IC1801 TC7SET08FUS1 PD6583A8 DPDT DPDT DPDT DPDT VDSENS V1801 DSENS DSENS DSENS REMOTE CONTROL SENSOR IC1941 VDCONT GP1UXC14RK ILM+B ILM+B D1967,D1968, D1969,D1970, D1971,D1972, D1951 CDRST D1973,D1974, D1975,D1976, D1977,D1978, D1979,D1980 D1981 CN1911 USB5V USB5V USB5V DEH-2500UI/XNUC...
  • Page 14: 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 8 Completes power-on operation. (After that, proceed to each source operation) DEH-2500UI/XNUC...
  • Page 15: Error Code List

    : Servo-related errors CD Off, Eject, ACC Off, Back-up Off, Communication reset, Reset Load NG/Eject NG(50) : Reload, Eject, ACC Off, Back-up Off, Communication reset, Reset Failure in retried turning for ejection : CD On, Eject, ACC Off, Back-up Off, Communication reset, Reset DEH-2500UI/XNUC...
  • Page 16 NOT FOUND No related Transfer songs to more than maxi- use it. Turn the songs. the iPod. mum allowable ignition switch to current. OFF, then to ACC or ON and then connect only compliant USB storage devices. DEH-2500UI/XNUC...
  • Page 17: Connector Function Description

    5.3 CONNECTOR FUNCTION DESCRIPTION ANTENNA WIRED FRONT REMOTE OUTPUT 15 13 11 9 7 5 3 1 CONTROL (Except DEH-2500UI/XNUC) (Except DEH-2500UI/XNUC) 16 14 12 10 8 6 4 2 REAR OUTPUT or SUBWOOFER OUTPUT 1 FL+ 9 NC 2 FR+...
  • Page 18: Service Mode

    Conf. LCD pattern 1 ILM(2) BAND Draw 3 (* And change ILM color) (If not have, ILM(1) light on) Conf. LCD pattern 2 ROTARY center Draw 4 ILM(1) Drawings Style Draw1 ALL light up Draw2 ALL light off Draw3 Draw4 DEH-2500UI/XNUC...
  • Page 19: Display Test Mode 2

    The screen gets still when entering this item. On (an initial value or On (state when setting value of default entering test mode) Switching to next display menu) by pressing “ 1 ” + “ 3 ” buttons together. DEH-2500UI/XNUC...
  • Page 20: Software Version Up Method

    The display is continued until the power supply is turned OFF. If the power supply is turned ON again, the display is not changed. The upgrading using USB is disabled, so it is necessary to write programs in serial Flash using E10A. DEH-2500UI/XNUC...
  • Page 21: Cd Test Mode

    When the power is turned on/off 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. Do not do Tracking Servo Close before doing Focus Servo Close. (Because the overcurrent flows) DEH-2500UI/XNUC...
  • Page 22: Disassembly

    Slide the Tuner Amp Assy in the direction of the arrow. Lift off the Tuner Amp Assy from the Heat Sink side. The Tuner Amp Assy is fixed into the ditch. Disconnect the FFC and then remove the CD Mechanism Module. CD Mechanism Module Fig.2 DEH-2500UI/XNUC...
  • Page 23 Tuner Amp Unit Remove the two screws. Remove the two screws and then remove the Tuner Amp Unit. Fig.3 - Attention of removing (Fig.4) Don’t remove this screws excluding the dismantlement of the CD Mechanism Module. CD Mechanism Module Fig.4 DEH-2500UI/XNUC...
  • Page 24 1. Attach the button from the front side of the panel. Fig.7 2. Attach the spring to the arm as shown in the figure. The bended tip of the spring is set to this side. Hitch the spring to the groove. Fig.8 DEH-2500UI/XNUC...
  • Page 25 4. Fit the boss on the lower side of the arm in the lower hole of the panel, and then warp the rib on the panel in the direction shown in the figure and fit the boss of the arm in the panel. Fig.9 DEH-2500UI/XNUC...
  • Page 26 2. Be careful not to hold the solid line portions or the CRG mecha part or insert foreign substances, to prevent distortion. 3. When holding the sides of the upper chassis, do not apply excessive force to prevent distortion. (Approx. 8N or less) Handling OK Handling NG DEH-2500UI/XNUC...
  • Page 27 Fig 3 Fig 4 [Incorrect built-in state] The chassis is not nipped between Outer holder Normal built-in state the PU case and the PU rack. Rear end of feeding screw DEH-2500UI/XNUC...
  • Page 28: Each Setting And Adjustment

    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-2500UI/XNUC...
  • Page 29: 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-2500UI/XNUC...
  • Page 30 Grating waveform Ech -> Xch 20 mV/div, AC Fch -> Ych 20 mV/div, AC 0 degrees 30 degrees 45 degrees 60 degrees 75 degrees 90 degrees DEH-2500UI/XNUC...
  • Page 31: Pcl Output Confirmation

    The frequency of the clock signal is 600 kHz that is divided by 20th of the oscillation frequency of X601 (12MHz). The clock signal should be 600 kHz(- 25 Hz, + 25 Hz). If the clock signal is out of the range, the X'tal (X601) should be replaced with new one. DEH-2500UI/XNUC...
  • Page 32: Exploded Views And Parts List

    (In the case of no amount instructions,apply as you think it appropriate.) 9.1 PACKING 2500UI/XNUC 2500UI/XNEW5 2550UI/XNES 2500UI/XMEW5 2550UI/XMES 2500UI/XNEW5 2550UI/XMES1 2500UI/XMEW5 2590UI/XNID 2500UI/XNUC 2500UI/XNEW5 2550UI/XNES 2500UI/XMEW5 2550UI/XMES 2550UI/XNES 2550UI/XMES1 2550UI/XMES 2590UI/XNID 2550UI/XMES1 2590UI/XNID 2500UI/XNUC 2500UI/XNUC 2500UI/XNUC 2550UI/XNES 2550UI/XMES 2550UI/XMES1 2590UI/XNID DEH-2500UI/XNUC...
  • Page 33 13-3 Service Network See Contrast table (2) Handle QNC3021 Screw See Contrast table (2) (2) CONTRAST TABLE DEH-2500UI/XNUC, DEH-2500UI/XNEW5, DEH-2500UI/XMEW5, DEH-2550UI/XNES, DEH-2550UI/XMES, DEH- 2550UI/XMES1 and DEH-2590UI/XNID are constructed the same except for the following: Mark Description DEH-2500UI/XNUC DEH-2500UI/XNEW5DEH-2500UI/XMEW5 DEH-2550UI/XNES Cord Assy CDP1480...
  • Page 34: Exterior

    9.2 EXTERIOR 2500UI/XNUC 2550UI/XNES 2550UI/XMES 2550UI/XMES1 2590UI/XNID 2590UI/XNID 2500UI/XNUC 2550UI/XNES 2550UI/XMES 2550UI/XMES1 2590UI/XNID 2500UI/XNEW5 2500UI/XMEW5 DEH-2500UI/XNUC...
  • Page 35 See Contrast table (2) Heat Sink See Contrast table (2) > Fuse (10 A) YEK5001 (2) CONTRAST TABLE DEH-2500UI/XNUC, DEH-2500UI/XNEW5, DEH-2500UI/XMEW5, DEH-2550UI/XNES, DEH-2550UI/XMES, DEH- 2550UI/XMES1 and DEH-2590UI/XNID are constructed the same except for the following: Mark Description DEH-2500UI/XNUC DEH-2500UI/XNEW5DEH-2500UI/XMEW5 DEH-2550UI/XNES Cord Assy CDP1480...
  • Page 36: Cd Mechanism Module

    9.3 CD MECHANISM MODULE (A) : GEM1024 (B) : GEM1043 DEH-2500UI/XNUC...
  • Page 37 CNV8342 Guide CNW2240 Roller CNW1172 Holder CNW1195 CNW2241 Roller CNW1175 ..CNW1177 CNW1178 Gear CNW1180 Gear CNW1181 ..Gear CNW1183 Rack CNW1184 Gear CNW1185 Gear CNW1186 Gear CNW1187 Gear CNW2287 Clamper CNW1190 CNW1192 Holder CNW1193 Holder CNW1194 Damper CNW1197 DEH-2500UI/XNUC...
  • Page 38: Schematic Diagram

    R805 AUXL R803 R806 SOURCE R807 R804 AUXR L801 NOTE : AUXGND Symbol indicates a resistor. DEH-2500UI/XNUC RGBST/ILMCLR2 No differentiation is made between chip resistors and DEH-2500UI/XNEW5 CTF17 discrete resistors. RGBCK/ILMCLR1 DEH-2500UI/XMEW5 US5V Symbol indicates a capacitor. USB5V CN1931 DEH-2550UI/XNES...
  • Page 39 R812 RGBCK/ILMCLR1 R961 RGBDT/DIMMER R813 2.2k DIAG MASK C330 Dim off 12.13 V R814 2.2k Q875 KYDT Dim on 8.03 V TPD1052F DPDT LTC043EEB R816 2.2k ROT0 ILMPW B.REM&A.ANT R817 2.2k ROT1 SWVDD L851 IC801 DPDT OUTY TC7SET08FUS1 SWVDD DEH-2500UI/XNUC...
  • Page 40 PREOUT DEH-2500UI/XNUC...
  • Page 41 POWER SUPPLY DEH-2500UI/XNUC...
  • Page 42 DEH-2500UI/XNUC...
  • Page 43 DEH-2500UI/XNUC...
  • Page 44: Keyboard Unit

    KDT0 SOURCE DGND IC1941 GP1UXC14RK REMOTE 5 MHz X1801 CSS1547-A R1942 R1944 L1801 DGND DGND ILLUMINATION only B, C DGND only A, D - G V1801 CAW2024 SEGMENT LCD COLOR2 BLUE/GREEN ILMGND DEH-2500UI/XNUC DEH-2500UI/XNEW5 DEH-2500UI/XMEW5 DEH-2550UI/XNES DEH-2550UI/XMES DEH-2550UI/XMES1 DEH-2590UI/XNID DEH-2500UI/XNUC...
  • Page 45 ILMGND DGND COLOR1 USB:±0.0 dBs USBGND Q1951 A, B, D, G C, E, F SWBA05(FI231718) CSL0401WBHCW1 D1951 D1967-D1981 SML-D12V8W(PQ) FC-1608SXK630D08 1.5k R1971 1.5k R1973 ILMCLR R1976 1.2k R1978 R1979 1.8k ILMGND R1980 R1981 1.8k R1982 R1983 2.2k R1990 1.8k DEH-2500UI/XNUC...
  • Page 46: Cd Core Unit (S11.6Std)

    C308 CSN1081-A R309 PRTLIM TKRNF DSCSNS 1u/10 MOTOR DRIVER LOGIC TABLE PRTF FCRNF (1608) PRTT LOAD PLAY TKCDET SWITCHES: PREVCC CLCONT FCCDET CD CORE UNIT (S11.6STD) LOEJ CONT S901:HOME SWITCH..ON-OFF S903:DSCSNS SWITCH..ON-OFF The underlined indicates the switch position. PGND DEH-2500UI/XNUC...
  • Page 47 /CDSRQ /CDSRQ R706 /CDSTBY /CDSTBY R702 R708 SKIP SKIP R701 RESET 8 RESET 3.3V CN701 10 GND DATA 11 DATA BCLK 12 BCLK LRCK 13 LRCK 14 GND 15 PGND LOGIC TABLE /WAIT 16 WAIT PLAY IIC-BUS Digital PGND DEH-2500UI/XNUC...
  • Page 48: Waveforms

    1 V/div fRFAGC 500 mV/div 500 mV/div 500 mV/div 9TIN 500 mV/div Focus Search waveform Track Open waveform 100 Track Jump waveform (32 Track Jump x 3) Ref.: Ref.: Ref.: REFO REFO REFO Mode: Mode: Mode: TEST TEST TEST DEH-2500UI/XNUC...
  • Page 49 12 cm CD Eject operation 12 cm CD Eject operation Ref.: Ref.: Mode: Mode: Normal Normal 500 μs/div fRFAGC 1 V/div 9TIN 1 V/div 1 V/div aFIN 1 V/div μ Black Dot (800 m) during play Ref.: REFO Mode: Normal DEH-2500UI/XNUC...
  • Page 50: Pcb Connection Diagram

    C305 C256 C321 C318 C251 C259 C310 SIDE B C317 R304 C252 C312 Chip Part P.C.Board R307 R302 R555 D551 C562 R311 C551 C556 C557 C563 C558 C555 C564 IC551 C553 R553 R552 R554 C552 C565 L551 D552 FRONT DEH-2500UI/XNUC...
  • Page 51 CN701 R703 R877 C872 C852 IC552 R878 C561 C873 C802 L851 C851 C560 R801 C811 C559 R808 R851 L801 C805 C808 C803 C809 IC801 R804 R803 D802 D811 D803 R813 VA802 C804 C810 R818 CN801 CN1931 C806 C801 FRONT DEH-2500UI/XNUC...
  • Page 52 TUNER AMP UNIT TESTIN DEH-2500UI/XNUC...
  • Page 53 SIDE B DEH-2500UI/XNUC...
  • Page 54: Keyboard Unit

    D1978 D1964 D1977 D1963 CN801 D1976 D1962 D1975 D1961 D1973 D1957 R1802 D1974 D1956 R1987 R1988 D1968 D1960 R1989 D1953 D1972 R1973 C1953 R1981 R1975 R1986 R1984 R1932 R1931 R1956 C1951 D1952 C1958 R1953 D1959 D1967 D1971 R1993 D1955 DEH-2500UI/XNUC...
  • Page 55 DEH-2500UI/XNUC...
  • Page 56: Cd Core Unit (S11.6Std)

    C235 CN101 MOTOR R246 R232 HOME C102 S901 C201 D101 CN702 R253 R245 C238 R706 C240 C710 C205 R297 C299 C707 C705 C220 R702 R701 SPINDLE MOTOR CN701 CN701 C702 C307 R710 C701 C308 C312 REFO1 IC301 C306 R309 DEH-2500UI/XNUC...
  • Page 57 Q201 R240 R282 R293 C204 R283 R281 C284 C222 IC201 C281 C218 R292 C301 C282 R216 R218 C219 R229 R291 C217 C283 C216 C228 R217 C221 C215 C212 R709 R260 R708 S905 C708 R313 DSCSNS R312 R311 S903 R310 DEH-2500UI/XNUC...
  • Page 58: Electrical Parts List

    The expression of the unit in this manual is shown by u instead of µ. Please do not make a mistake. Circuit Symbol and No. Part No. Circuit Symbol and No. Part No. A:DEH-2500UI/XNUC IC 552 (A,106,24) IC BD2232G-G B:DEH-2500UI/XNEW5...
  • Page 59 R 309 (A,86,121) RS1/16SS103J R 638 (A,104,92) RS1/16SS473J R 311 (A,86,123) RS1/16SS473J R 312 (A,99,129) RS1/16SS103J R 639 (A,97,91) RS1/16SS472J R 401 (A,161,106) RS1/16SS221J R 640 (A,98,91) RS1/16SS472J R 402 (A,161,100) RS1/16SS751J R 643 (A,99,82) RS1/16SS104J R 644 (A,98,79) RS1/16SS101J DEH-2500UI/XNUC...
  • Page 60 C 307 (A,77,129) CKSRYB224K16 R 874 (A,147,58) RS1/10SR391J C 313 (A,83,130) CKSRYB105K16 R 875 (A,149,58) RS1/10SR473J C 314 (A,135,126) CKSRYB104K16 R 877 (A,121,27) RS1/16SS1R0J C 317 (A,60,129) (A,B,D,G) XCEVW100M16 (A,60,129) (C,E,F) CEVW100M16 R 878 (A,124,26) RS1/10SR473J R 879 (A,156,67) RS1/10SR122J DEH-2500UI/XNUC...
  • Page 61 C 461 (A,145,104) CKSSYB104K16 C 531 (A,91,93) CKSSYB104K10 C 913 (A,131,43) CKSSYB102K50 C 532 (A,93,93) CKSSYB104K10 C 914 (A,156,56) 1 000 uF/16 V CCH2024 C 915 (A,132,42) CKSRYB104K16 C 551 (A,13,121) (A,B,D,G) XCEVW221M16 C 916 (A,146,43) 4.7 uF CCG1201 DEH-2500UI/XNUC...
  • Page 62 (B,70,25) Ceramic Resonator 5.00 MHz CSS1547 CN701 (A,25,29) Connector CKS6146 CSD1168 S 1830 (A,37,20)Encoder(MULTI-CONTROL) CN1911 (A,156,25) Connector CKS6443 RESISTORS CN1931 (B,109,10) Connector CKS6451 R 101 (B,6,57) RS1/10SR2R4J JA1921 (A,155,9) Jack CKN1094 R 102 (B,8,57) RS1/10SR2R4J V 1801 (A,142,32) Segment LCD CAW2024 DEH-2500UI/XNUC...
  • Page 63 C 210 (B,33,43) CKSSYB104K10 C 211 (B,33,41) CKSSYB104K10 C 212 (B,22,28) CKSSYB104K10 C 213 (B,18,26) CKSSYB332K50 C 214 (B,17,26) CKSSYB473K16 C 215 (B,19,28) CKSSYB104K10 C 216 (B,12,33) CKSSYB182K50 C 217 (B,10,34) CCSSCH560J50 C 218 (B,10,36) CCSSCH4R0C50 C 219 (B,14,34) CKSSYB104K10 DEH-2500UI/XNUC...

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