By following the instructions in this manual, be sure to apply the prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed ones should be used. DEH-P550MP/XN/UC...
2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKING(DEH-P550MP/XN/UC, DEH-P5500MP/XN/UC) DEH-P550MP/XN/UC...
Page 9
See Contrast table(2) 19 Contain Box See Contrast table(2) 20 Protector CHP2663 (2) CONTRAST TABLE DEH-P550MP/XN/UC and DEH-P5500MP/XN/UC are constructed the same except for the following: Part No. Mark No. Symbol and Description DEH-P550MP/XN/UC DEH-P5500MP/XN/UC 16 Remote Control Unit Not used...
Page 13
43 Spring CBL1470 88 IC(IC301) PAL007A 44 Cushion CNM8291 2SD2396 Transistor(Q651, 911, 921) 45 Cover CNS7247 90 Cord Assy See Contrast table(2) 91 Plug(CN351) See Contrast table(2) 92 Remote Control Assy See Contrast table(2) 93 Cover See Contrast table(2) DEH-P550MP/XN/UC...
Page 14
(2) CONTRAST TABLE DEH-P550MP/XN/UC, DEH-P5500MP/XN/UC and DEH-P5550MP/XN/ES are constructed the same except for the following: Part No. Mark No. Symbol and Description DEH-P550MP/XN/UC DEH-P5500MP/XN/UC DEH-P5550MP/XN/ES 14 Panel CNS6935 CNS6934 CNS6935 15 Tuner Amp Unit CWM8588 CWM8589 CWM8590 27 Holder CND1239...
WMA DECODER HOME HOME IC 501 CD3VON Q652 UPD61002GC VDCONT 12EJ DISC SENSE 8EJ CLAMP SENSE VDCONT SENSE SENSE +3.3V REGULATOR IC 203 IC 703 3VDD V3R3D BA033SFP S-818A33AUC-BGN +3.3V REGULATOR DSENS Q650 IC 502 V2R5 BA25BC0WFP +2.5V REGULATOR DEH-P550MP/XN/UC...
DEH-P550MP/XN/UC CN351 RESET REAR L Q351 IC 602 S-80835ANUP-EDZ CN352 NON-FAD/SW L Q353 tunce@ TUNPCE1 FRONT L TUNPDI Q352 TUNPDO TUNPCK VDD REGULATOR Q911 Q913 SYSTEM CONTROLLER IC 601(1/2) PD5800A DALMON CN901 BACKUP SENSE FUSE bsens BACK UP Q931 asens...
IP-BUS DRIVER PANEL UNIT EJECT For resistors and capacitors in the circuit diagrams, their resistance values or capacitance values are expressed in codes: Ex. *Resistors Code Practical value 12k ohms 10k ohms *Capacitors Code Practical value 0.01uF 101/10 100uF/10V DEH-P550MP/XN/UC...
Page 21
TUNER AMP UNIT DEH-P550MP/XN/UC REAR R CH REAR L CH FRONT R CH FRONT L CH SUB WOOFER R CH SUB WOOFER L CH SYSTEM CONTROLLER 600µF > FUSE CEK1208 BACKUP B.REM RL— DSENSE SW FL— RR— FR— B.UP SENSE ACC SENSE The >...
SWITCHES: CD CORE UNIT(S10MP3) 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 original switch position. SPINDLE MOTOR M1 CXB6007 M2 CXB8933 LOADING/CARRIAGE MOTOR DEH-P550MP/XN/UC...
Page 29
CD CORE UNIT (S10MP3) R241 R240 SIGNAL LINE FOCUS SERVO LINE TRACKING SERVO LINE CARRIAGE SERVO LINE SPINDLE SERVO LINE MA152WA 4R7/25 & 4R7/25 PE5352B CN651 DEH-P550MP/XN/UC...
Page 34
@ MDX # RFAGC 500mV/div 50ms/div 500mV/div 5µs/div 500mV/div 5µs/div 5 SIN 5 SIN 200mV/div 1V/div Spindle waveform during "Play" Spindle waveform during "Play"(Magnified) RF eye pattern Ref.: Ref.: Ref.: REFO REFO REFO Mode: Mode: Mode: Normal Normal Normal DEH-P550MP/XN/UC...
Page 35
5V/div 500ms/div 5V/div 10µs/div * ROUT 2 CLCONT 2 CLCONT 1V/div 5V/div 5V/div 3 LOEJ 3 LOEJ 5V/div 5V/div Analog Audio(sine wave, 1kHz) When "Eject"(12cm CD) When "Eject"(8cm CD) Ref.: Ref.: Ref.: AGND Mode: Mode: Mode: Normal Normal Normal DEH-P550MP/XN/UC...
Page 36
500ms/div 1V/div 500ms/div 6 CIN 6 CIN 500mV/div 500mV/div 7 TIN 7 TIN 500mV/div 500mV/div When switching to CD-ROM from CD-DA When switching to CD-DA from CD-ROM (BAND key) (BAND key) Ref.: Ref.: REFO REFO Mode: Mode: Normal Normal DEH-P550MP/XN/UC...
1.The parts mounted on this PCB include all necessary parts for CORD ASSY several destination. For further information for 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 DSENSE DEH-P550MP/XN/UC...
Page 39
SIDE A ANTENNA FRONT CN901 CN1950 CN701 DEH-P550MP/XN/UC...
=====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Diode HZS11L(A1) Unit Number : CWM8588(DEH-P550MP/XN/UC) Diode S5688G Unit Name : Tuner Amp Unit Diode HZS6L(B2) Diode HZS9L(B3) MISCELLANEOUS Diode HZS7L(A1) HA12187FP...
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-P550MP/XN/UC...
Page 55
→ → TYP(1X) TYP(2X) TRK 22 MIN 22 SEC 22 TRK 11 MIN 11 SEC 11 TRK 11 MIN 11 SEC 11 TRK 22 MIN 22 SEC 22 As for the double speed (2x), audio output cannot be supported DEH-P550MP/XN/UC...
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-P550MP/XN/UC...
When newly design head unit, be sure to apply as the display examples above. The upper digits of error code is mainly classified by 3 kinds as follows: 1x: Setup related error, 3x: Search related error, Ax: Other errors. DEH-P550MP/XN/UC...
Grille Assy. Grille Assy Fig.1 Removing the Tuner Amp Unit (Fig.2) Remove the screw. Remove the three screws. Straight the tabs at three locations indicated. Remove the screw and then remove the Tuner Amp Unit. Tuner Amp Unit Fig.2 DEH-P550MP/XN/UC...
Page 60
4. While releasing from the hook of the inner holder, lift the end of the feed screw. Feed Screw Caution: In assembling, move the planet gear to the load/eject position before setting the feed screw in the inner holder. Inner Holder Planet Gear DEH-P550MP/XN/UC...
LCD voltage input 79,80 V2,1 Power supply terminal NJM2391DL1-33 *PD6294A VREF Thermal Over current Shutdown protector IC's marked by * are MOS type. Be careful in handling them because they are very liable to be damaged by electrostatic induction. DEH-P550MP/XN/UC...
Page 63
ROM correction : Data input/output EVOL : Strobe output EVOL : Data output EVOL : Clock output IPPW IPBUS : Driver power supply control output ASENBO IPBUS : Slave ACC sense output isens Illumination sense input 82-84 Not used DEH-P550MP/XN/UC...
Page 64
Level indicator L.ch input MODEL0 Model 0 AVSS TUNER : Signal level input VREF AD translation reference voltage AVCC AD translation power supply input terminal TUNPDI TUNER : PLL communication TUNPDO TUNER : Data output(PLL) TUNPCK TUNER : Clock output(PLL) * PD5800A DEH-P550MP/XN/UC...
Page 66
Information on error correction (mute for Lch) C2D3 Information on error correction D.GND Ground for digital circuits Output of DRAM RAS cas) Output of DRAM Lower CAS cas! Output of DRAM Upper CAS Output of DRAM WE Output of DRAM OE DEH-P550MP/XN/UC...
Page 67
Reversal input of TE Output of TE A.GND Ground for the analog system LDREGO Output of REG voltage for APC Input of PD Output of LD Assignment of pickup polarity A.VDD Power supply for the analog system * UPD63760GJ DEH-P550MP/XN/UC...
Page 68
Bus direction flag from external 72,73 DBBWRDY0, 1 DBB write ready flag DBBRRDY0 DBB read ready flag VDD2 Power supply (2.5V) GND3 DBBRRDY1 DBB read ready flag GND3 RESETB Reset GND3 VDD3 Power supply (3.3V) GND3 PLLCONT PLL control GND3 DEH-P550MP/XN/UC...
Page 69
LRCKI2 PCM input LRCK BCKI2 PCM input bit clock PCM input data LRCKI1 PCM input LRCK BCKI1 PCM input bit clock VDD2 Power supply (2.5V) PCM input data LRCKI0 PCM input LRCK BCKI0 PCM input bit clock GND2 *UPD61002GC DEH-P550MP/XN/UC...
Page 70
Input of read-ready flag with WMA decoder DBBO0, 1 AVDD A power supply Positive power supply (5V) AVSS A power supply GND AVREF The reference voltage input for A/D converter VDSENS VD power supply short sense input DSCSNS Disc state sense input TEMP Temperature information sense input DEH-P550MP/XN/UC...
Page 71
E2PROM data input/output ROMCS E2PROM chip selection output ROMCK E2PROM clock output FRXD For flash rewriting (received signal) FTXD For flash rewriting (transmitted signal) AO/DO The output for Analog/Digital voice output distinction P-Bus serial data input * PE5352B Format Meaning CMOS DEH-P550MP/XN/UC...
Page 72
22 AUDIOGND audio ground Ground of audio block 23 L ch O L channel output FM stereo “L-ch” signal output or AM audio output 24 R ch O R channel output FM stereo “R-ch” signal output or AM audio output DEH-P550MP/XN/UC...
In case of the above signal, the communication with Grille microcomputer may fail. Source keys If the time interval is not 300msec, the oscillator operative may be defective. Source ON SYSPW←H Pin 1 Completes power-on operation. (After that, proceed to each source operation) DEH-P550MP/XN/UC...
7.4 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-P550MP/XN/UC...