Pioneer DEH-2350UB/XNES Service Manual
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Pioneer DEH-2350UB/XNES Service Manual

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CD RDS RECEIVER
DEH-2350UB
DEH-2350UBG
DEH-2350UBSW
DEH-2350UB
DEH-2350UB
This service manual should be used together with the following manual(s):
Model No.
Order No.
CX-3269
CRT4488
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 2010
Mech. Module
S11.1STD-DOUT
CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly
1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, Japan
DEH-2350UB/XNES
/XNES
/XNES
/XSES
/XNES1
Remarks
ORDER NO.
CRT4632
/XNES
K-ZZZ OCT. 2010 Printed in Japan

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  • 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 PIONEER CORPORATION 2010 K-ZZZ OCT.

  • Page 2: Safety Information

    Transistors Q101 in PCB drive the laser diodes. When Q101 is shorted between their terminals, the laser diodes will radiate beam. If the top cover is removed with no disc loaded while such short-circuit is continued, the naked eyes may be exposed to the laser beam. DEH-2350UB/XNES...
  • Page 3 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-2350UB/XNES...
  • Page 4 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-2350UB/XNES...

  • Page 5: Table Of Contents

    10.1 TUNER AMP UNIT (GUIDE PAGE) ......................38 10.2 KEYBOARD UNIT ..........................44 10.3 CD CORE UNIT (S11.1STD-DOUT) ......................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 (S11.1STD-DOUT) ......................56 12. ELECTRICAL PARTS LIST ...........................58 DEH-2350UB/XNES...

  • Page 6: Service Precautions

    If the lead is bent, please correct the angle between the lead and the light receiving part to be 90 degrees or replace the infrared deteching unit for remote control (GP1UXC14RK). DEH-2350UB/XNES...

  • Page 7: Notes On Soldering

    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-2350UB/XNES...

  • Page 8: Specifications

    WMA decoding format ..Ver. 7, 7.1, 8, 9, 10, 11, 12 Specifications and the design are subject to mod- (2ch audio) (Windows Media Player) ifications without notice. MP3 decoding format ...MPEG-1 & 2 Audio Layer 3 WAV signal format ....Linear PCM & MS ADPCM (Non-compressed) 2.2 DISC/CONTENT FORMAT DEH-2350UB/XNES...

  • Page 9: Panel Facilities

    USB port Detach button B (BAND/ESC) CAUTION Indicator State Use an optional Pioneer USB cable (CD-U50E) to connect the USB audio player/USB mem- Tuner: band and frequency Main dis- Program service name ory as any device connected directly to the...

  • Page 10: Connection Diagram

    3 Right 5 Rear speaker or subwoofer 4 Front speaker Fastening the front panel If you do not plan to detach the front panel, the front panel can be fastened with the supplied screw. Screw ES, ES1 : XXX7020 DEH-2350UB/XNES...

  • Page 11: Basic Items For Service

    See the table below for the items to be checked regarding audio: Item to be checked regarding audio Distortion Noise Volume too low Volume too high Volume fluctuating Sound interrupted DEH-2350UB/XNES...

  • Page 12: Pcb Locations

    3.2 PCB LOCATIONS CD Core Unit (S11.1STD-DOUT) Tuner Amp Unit Keyboard Unit A:DEH-2350UB/XNES B:DEH-2350UBG/XNES C:DEH-2350UBSW/XNES D:DEH-2350UB/XSES E:DEH-2350UB/XNES1 Unit Number : CWN5489 (A, B, D, E) : CWN5479 (C) Unit Name : Tuner Amp Unit Unit Number Unit Name : Keyboard Unit...

  • Page 13: Jigs List

    Capacitor Bond Lock 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-2350UB/XNES...

  • Page 14: Block Diagram

    B.UP Q752 VO1- VO2+ VO2- VDCONT VO3+ SPINDLE MOTOR LDIN LOEJ VO3- CLCONT LCOM RESET RESET LOADING/CARRIAGE VO4+ MUTE CONT RESET CDRST LCOP MOTOR VO4- CD DATA (CDSRQ,CDSTBY,SKIP, CD DATA (CDSRQ,CDSTBY,SKIP, SCL,SDA,DATA,BCLK,LRCK,WAIT) SCL,SDA,DATA,BCLK,LRCK,WAIT) DSCSNS HOME S903 S901 DSCSNS HOME DEH-2350UB/XNES...
  • Page 15 LCD DRIVER/ IC801 KEY CONTROLLER KST4 TC7SET08FUS1 IC1801 VDSENS DPDT DPDT PD6340A DPDT DPDT V1801 B.UP DSENS DSENS DSENS REMOTE CONTROL SENSOR IC1802 VDCONT GP1UXC14RK ILM+B ILM+B CDRST D1868,D1869,D1870,D1871, SW5V D1872,D1873,D1874,D1875, SWVDD SW5V D1913 D1876,D1877,D1878,D1879, D1880,D1881,D1882,D1883 CN1911 USB5V USB5V USB5V DEH-2350UB/XNES...

  • 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 7 Completes power-on operation. (After that, proceed to each source operation) DEH-2350UB/XNES...

  • Page 17: Error Code List

    • How to restore from each error is shown below. classification, shown below. 0x, 1x and 3x: ACC-OFF then ON, CD-OFF then ON, 0x: Servo-related errors Disc ejection 1x: Servo-related errors 5X: ACC-OFF then ON, Disc ejection, Disc reloading 3x: Servo-related errors 5x: Mechanism-related errors DEH-2350UB/XNES...
  • Page 18 USB memory memory and do consumes more not use it. Turn the than maximum ignition switch to allowable cur- OFF, then to ACC rent. or ON and then connect a compli- ant USB portable audio player/USB memory. DEH-2350UB/XNES...

  • Page 19: Connector Function Description

    16 14 12 10 8 6 4 2 1 FL+ 9 NC 2 FR+ 10 NC 11 NC 3 FL- 12 NC 4 FR- 5 RL+ 13 ACC 6 RR+ 14 B.REM 7 RL- 15 B.UP 16 GND 8 RR- DEH-2350UB/XNES...

  • Page 20: Service Mode

    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 ” keys simultaneously. DEH-2350UB/XNES...

  • 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-2350UB/XNES...

  • Page 22: Disassembly

    Lift off the Tuner Amp Assy from the Heat sink side. The Tuner Amp Unit is fixed into the ditch. Disconnect the FFC and then remove the CD Mechanism Module. CD Mechanism Module Fig.4 DEH-2350UB/XNES...
  • Page 23 Remove the two screws. Straighten the tabs at two locations indicated and then remove the Tuner Amp Unit. Fig.5 Tuner Amp Unit Attention of removing (Fig.6) Don't remove this screws excluding the dismantlement of the CD Mechanism Module. Fig.6 DEH-2350UB/XNES...
  • Page 24 1. Attach the button from the front side of the panel. Fig.9 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.10 DEH-2350UB/XNES...
  • 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.11 DEH-2350UB/XNES...
  • 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) Correct way of holding the unit Incorrect way of holding the unit DEH-2350UB/XNES...
  • Page 27 1. Create an empty clamp state according to “How to create empty clamp state of mecha module”. 2. Apply 1.5 V to the CRG motor and move the PU to the outer circumference. (Caution) After moving the PU to the outer circumference and performing necessary treatment, make sure to solder the lead wires. DEH-2350UB/XNES...

  • 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-2350UB/XNES...

  • 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-2350UB/XNES...
  • 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-2350UB/XNES...

  • Page 31: Pcl Output Confirmation

    With the TESTIN (22 pin) status of IC601 to be “H”, it is shifted to PCL Output Test mode after reset started. Check that square wave of 600.0 kHz is output from PCL (8 Pin) of IC601. If clock signal is out of this range, this resonator (X602) must be changed for a new one. DEH-2350UB/XNES...

  • Page 32: Exploded Views And Parts List

    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-2350UB/XNES...
  • Page 33 Handle QNC3021 14-3 Service Network See Contrast table (2) Screw Assy YEA5082 Polyethylene Bag CEG-127 (2) CONTRAST TABLE DEH-2350UB/XNES, DEH-2350UBG/XNES, DEH-2350UBSW/XNES, DEH-2350UB/XSES and DEH-2350UB/ XNES1are constructed the same except for the following: DEH-2350UB/ DEH-2350UBG/ DEH-2350UBSW/ DEH-2350UB/ DEH-2350UB/ Mark Description XNES...

  • Page 34: Exterior

    9.2 EXTERIOR DEH-2350UB/XNES...
  • Page 35 See Contrast table (2) Cover CNS7068 Door See Contrast table (2) Lighting Conductor QNV3022 Rubber Contact QNV3023 (2) CONTRAST TABLE DEH-2350UB/XNES, DEH-2350UBG/XNES, DEH-2350UBSW/XNES, DEH-2350UB/XSES and DEH-2350UB/ XNES1are constructed the same except for the following: DEH-2350UB/ DEH-2350UBG/ DEH-2350UBSW/ DEH-2350UB/ DEH-2350UB/ Mark Description XNES...

  • Page 36: Cd Mechanism Module

    ( C ) ( A ) ( A ) ( A ) ( C ) ( C ) ( A ) : GEM1045 ( B ) : GEM1038 ( C ) : GEM1024 ( C ) ( D ) : GEM1043 DEH-2350UB/XNES...
  • Page 37 CNV8342 Guide CNW1171 Roller CNW1172 CNW2157 CNW1174 Roller CNW1175 Lever CNW1176 CNW1177 CNW1178 Gear CNW1180 Gear CNW1181 ..Gear CNW1183 Rack CNW1184 Gear CNW1185 Gear CNW1186 Gear CNW1187 Gear CNW1188 Clamper CNW1190 CNW1192 Holder CNW1193 Holder CNW1194 Damper CNW1197 DEH-2350UB/XNES...

  • Page 38: Schematic Diagram

    ILMGND SW5V ILMG DGND ILMGND C803 DGND DGND C802 The > mark found on some component parts indicates the importance of the safety factor of the part. GRILL Therefore, when replacing, be sure to use parts of identical designation. DEH-2350UB/XNES...
  • Page 39 1u/10 TUNER AMP UNIT C208 1u/10 C206 1u/10 C234 CCG1192-A (DCH1201-A) C235 R232 E-VOL FM(30%): -5.9 dBs A : DEH-2350UB/XNES AM(30%): -5.9 dBs AUX:+10.3 dBs B : DEH-2350UBG/XNES CD/USB:+10.2 dBs C205 1u/10 C209 1u/10 C : DEH-2350UBSW/XNES main C207 1u/10...
  • Page 40 DEH-2350UB/XNES...
  • Page 41 DEH-2350UB/XNES...
  • Page 42 DEH-2350UB/XNES...
  • Page 43 DEH-2350UB/XNES...

  • Page 44: Keyboard Unit

    MODA KST3 5.00MHz SEG8 SEG8 KYDT SEG7 S184 S1839 SEG7 SEG6 DPDT SEG6 SEG5 S1829 S1840 DGND SEG5 CLOCK S184 KST4 EJECT 2.2k L1801 R1805 2.2k R1806 IC1802 GP1UXC14RK DGND R1802 R1804 DGND CLEAR BUTTON V1801 CAW1998 ILMGND COLOR2 DEH-2350UB/XNES...
  • Page 45 R1896 RS1/10SR272J-T R1897 RS1/10SR272J-T R1898 RS1/10SR102J-T R1871 RS1/4SA561J-T R1872 RS1/4SA561J-T R1873 RS1/4SA561J-T COLOR1 R1874 RS1/4SA391J-T R1875 RS1/4SA561J-T COLOR1 GREEN Q1851 A : DEH-2350UB/XNES B : DEH-2350UBG/XNES R1890 C : DEH-2350UBSW/XNES R1892 IMX9 D : DEH-2350UB/XSES E : DEH-2350UB/XNES1 ILMGND DEH-2350UB/XNES...

  • Page 46: Cd Core Unit (S11.1Std-Dout)

    MOTOR DRIVER LOGIC TABLE PowVcc2 1u/10 VO1- VO4- LOAD PLAY (1608) (1608) VO1+ VO4+ CLCONT VO2- VO3- LOEJ SWITCHES: CD CORE UNIT VO2+ VO3+ CONT S901:HOME SWITCH..ON-OFF IC301 S903:DSCSNS SWITCH..ON-OFF BA5839FP S905:8EJ SWITCH....ON-OFF The underlined indicates the switch position. PGND DEH-2350UB/XNES...
  • Page 47 3.3V LRCK 10 GND R606 BCLK DATA 11 DATA NM (1608) DATA BCLK 12 BCLK LRCK 13 LRCK AAGND1 AAGND2 14 GND 15 PGND /WAIT 16 WAIT i h g PGND NO MOUNT PARTS (NM) Land for manual soldering DEH-2350UB/XNES...

  • Page 48: Waveforms

    500 s/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-2350UB/XNES...
  • Page 49 12 cm CD Eject operation Ref.: Ref.: Ref.: REFO AGND Mode: Mode: Mode: Normal Normal Normal fRFAGC 1 V/div 500 s/div 9TIN 1 V/div 1 V/div aFIN 1 V/div Black Dot (800 m) during play Ref.: REFO Mode: Normal DEH-2350UB/XNES...

  • Page 50: Pcb Connection Diagram

    2.Viewpoint of PCB diagrams PRE OUT C259 Capacitor Connector JA251 SIDE A C316 Q251 R252 C252 C260 Q252 P251 C251 C313 C254 C253 D502 C261 SIDE B IC501 Chip Part P.C.Board C505 C503 R501 C502 R503 R502 R506 IC502 R507 CN701 FRONT DEH-2350UB/XNES...
  • Page 51 R702 R713 R718 IC912 R714 R719 R715 R720 R638 R717 R716 R816 C852 C817 R872 R821 R822 IC801 C802 C812 L851 C851 C808 L802 C803 R851 R691 C801 C806 S691 R818 CN802 D808 R819 C818 R823 CN1821 CN801 FRONT DEH-2350UB/XNES...
  • Page 52 TUNER AMP UNIT TESTIN DEH-2350UB/XNES...
  • Page 53 SIDE B DEH-2350UB/XNES...

  • Page 54: Keyboard Unit

    11.2 KEYBOARD UNIT KEYBOARD UNIT SIDE A D1863 D1880 D1864 D1881 D1865 D1882 C1863 D1862 D1883 D1861 D1879 C1861 D1860 D1878 C1855 D1854 D1877 D1858 D1856 C1858 D1874 D1876 D1873 D1867 DEH-2350UB/XNES...
  • Page 55 KEYBOARD UNIT SIDE B C1801 R1802 R1866 R1873 VA1901 VA1902 C1902 C1901 VA1903 C1903 CN801 R1891 R1899 R1888 R1880 R1895 R1872 R1854 R1864 R1898 R1874 R1852 R1868 R1860 R1862 R1853 R1882 R1881 R1871 R1897 R1858 DEH-2350UB/XNES...

  • Page 56: Cd Core Unit (S11.1Std-Dout)

    C213 C214 R215 R306 C215 R308 C305 C304 C203 C238 C307 C212 C240 C299 IC201 R307 R305 C207 C204 R707 C209 X201 R294 IC301 R264 C702 R225 R282 C211 R708 C210 R232 R709 R281 C306 R710 C701 CN701 CN701 DEH-2350UB/XNES...
  • Page 57 C231 C232 S905 C233 R237 R723 R721 R722 R260 R702 R297 R701 R283 R242 R602 C283 C281 C602 R292 R291 C282 R243 R606 R604 DSCSNS R299 R601 R706 C708 R293 C601 S903 C705 C703 R603 C710 C284 C707 R711 DEH-2350UB/XNES...

  • Page 58: Electrical Parts List

    PC board. IC 301 (A, 91, 111) IC NJM2068V Circuit Symbol and No. Part No. Circuit Symbol and No. Part No. Q 752 (A,137,132) Chip Transistor RN4983 A:DEH-2350UB/XNES B:DEH-2350UBG/XNES Q 872 (A,146,52) Transistor LTC114EUB Q 873 (A,147,58) Transistor LSA1576UB C:DEH-2350UBSW/XNES...
  • Page 59 R 561 (A,119,84) RS1/16SS103J R 811 (A,122,26) RS1/10SR222J R 812 (A,102,25) RS1/10SR222J R 562 (A,118,80) RS1/16SS473J R 601 (A,112,85) RS1/16SS103J R 813 (A,100,25) RS1/10SR222J R 602 (A,109,82) RS1/16SS473J R 819 (A,105,12) RS1/10SR0R0J R 603 (A,111,85) RS1/16SS104J R 820 (A,118,30) RS1/10SR101J DEH-2350UB/XNES...
  • Page 60 C 314 (A,61,135) CCSSCH100D50 C 607 (A,128,73) CKSSYB104K10 C 315 (A,84,129) CCSSCH100D50 C 317 (A,62,136) CCSSCK1R0C50 C 608 (A,100,71) CKSSYB104K10 C 609 (A,127,70) CKSSYB104K10 C 318 (A,107,129) CCSRCH100D50 C 610 (A,100,69) CKSSYB104K10 C 319 (A,103,129) CCSRCH100D50 C 612 (A,130,69) CKSSYB104K10 DEH-2350UB/XNES...
  • Page 61 RS1/10SR272J R 1895 (B,56,12) (A,C,D,E) RS1/10SR272J MISCELLANEOUS R 1896 (B,139,20) (A,C,D,E) RS1/10SR272J IC 1801 (B,88,24) IC PD6340A R 1897 (B,16,13) (A,C,D,E) RS1/10SR272J IC 1802 (A,160,35) Remote IC GP1UXC14RK R 1898 (B,48,6) (A,C,D,E) RS1/10SR102J D 1868 (A,11,42) LED(RED) (A,C,D,E) SML-D12V8W(PQ) DEH-2350UB/XNES...
  • Page 62 R 283 (B,32,18) RS1/16SS0R0J R 291 (B,31,17) RS1/16SS560J R 292 (B,32,16) RS1/16SS0R0J R 293 (B,32,11) RS1/16SS0R0J R 294 (A,18,28) RS1/16SS471J R 296 (B,32,30) RS1/16SS0R0J R 299 (B,31,13) RS1/16SS0R0J R 305 (A,60,34) RS1/16SS183J R 306 (A,61,37) RS1/16SS183J R 307 (A,58,34) RS1/16SS183J DEH-2350UB/XNES...

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