Pioneer DEH-3770MP Manuel de service

ORDER NO. PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, JapanPIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 9

DEH-3750MP/XU/GS1012341234CDFABE 2.2 EXTERIORCCBAABAB33435342353637323214515544447122343941384940484746505244313110656661606257646356596565555831316

DEH-3750MP/XU/GS1156785678CDFABE (1) EXTERIOR SECTION PARTS LIST Mark No. Description Part No. 1 ••••• 2 Screw BSZ26P060FTC 3 Screw BSZ30P060F

DEH-3750MP/XU/GS1212341234CDFABE (2) CONTRAST TABLE DEH-3750MP/XU/GS, DEH-3770MP/XU/CS and DEH-3750MP/XU/CN are constructed the same except for the f

DEH-3750MP/XU/GS1356785678CDFABE

DEH-3750MP/XU/GS1412341234CDFABE 2.3 CD MECHANISM MODULEADHLMNOQRABCDEFGHIJKLMNOQB162513834268288247123JK3823598786513345513445C52533647329511864765

DEH-3750MP/XU/GS1556785678CDFABE CD MECHANISM MODULE SECTION PARTS LIST Mark No. Description Part No. 1 CD Core Unit(S10.1) CWX3096 2 Connector(

DEH-3750MP/XU/GS1612341234CDFABE 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAMBRST,BRXEN,BSRQCCN901Q101MLASERDIODEMONITORDIODES903DSCSNSF

DEH-3750MP/XU/GS1756785678CDFABEFL-FL+RL-RL+39111210162BACK UPGNDFUSE10AACCB. REM11R LchIN1-LIN2-L2IC 151PML003AMELECTRONIC VOLUME/SOURCE SELECTORTUN

DEH-3750MP/XU/GS1812341234CDFABE 3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)A-a A-b A-aA-b A-b A-a Large sizeSCH diagramGuide pageDeta

DEH-3750MP/XU/GS1956785678CDFABEA-bA-a A-b A-aA-b A-b A-a A332/16CEK12863ACEK1208>RECEIVESTRKEY2bsrqisensasensbsensdsenssourceATUNE

DEH-3750MP/XU/GS212341234CDFABE SAFETY INFORMATIONThis service manual is intended for qualified service technicians; it is not meant for the casual d

DEH-3750MP/XU/GS2012341234CDFABEA-aA-bA-aA-aA-b471/16GS,CNVSSAVREF1AVDDDISCSENSSTRKEY1asensbsensdsenssource2322212019181716151413121110987654321CCN90

DEH-3750MP/XU/GS2156785678CDFABEA-aA-bA-aA-aA-b21GS,CNswvddBDATAADPWVSSAVREF1AVDDDISCSENSSTRKEY1RECEIVESTRKEY2brstbrxenbsrqisensasensbsensdsenssource

DEH-3750MP/XU/GS2212341234CDFABEA-aA-bA-b332/16CEK12863AATUNER AMP UNIT>REARL CHREARR CHFM: 29.6dBAM: 19.1dBCD: 36.45dB

DEH-3750MP/XU/GS2356785678CDFABEA-aA-bA-b21CEK1208>10A

DEH-3750MP/XU/GS2412341234CDFABE 3.3 KEYBOARD UNITBGS,CN : YAW5027CS : YAW5015LCD DRIVER/KEY CONTROLLERDIS

DEH-3750MP/XU/GS2556785678CDFABEBGS,CN : CL-490SWFSD(12)CS : CL-490S-WF-SDD1803,D1804BKEYBOARD UNITACN83140mA,14VDISPLAY

DEH-3750MP/XU/GS2612341234CDFABE 3.4 CD MECHANISM MODULE(GUIDE PAGE)C-aCTYPICKUP UNIT(P10)(SERVICE)M1 CXC4440SPINDLE MOTORM2 CXB8933LOADING/CARR

DEH-3750MP/XU/GS2756785678CDFABEDecimal points for resistorand capacitor fixed valuesare expressed as :2.2 2R20.022 R022← ← C-bCrasSRAMLEVEL0SR

DEH-3750MP/XU/GS2812341234CDFABEA-aC-bC-aC-aC-b12PICKUP UNIT(P10)(SERVICE)TFFTTTFFFTCSTTFF@#%

DEH-3750MP/XU/GS2956785678CDFABEA-aC-bC-aC-aC-b23 45 6M1 CXC4440SPINDLE MOTORM2 CXB8933LOADING/CARRIAGE MOTORCD DRIVERTFSCFFTTSSCCCCSS132097$854

DEH-3750MP/XU/GS356785678CDFABE[Important Check Points for Good Servicing]In this manual, procedures that must be performed during repairs are marked

DEH-3750MP/XU/GS3012341234CDFABEDecimal points for resistorand capacitor fixed valuesare expressed as :2.2 2R20.022 R022← ← C-aC-bC-b12rasSWITC

DEH-3750MP/XU/GS3156785678CDFABEC-aC-bC-b23 45 6SRAMLEVEL0SRAMLEVEL1SRAMLEVEL2TYPE_A/DACN7213V REGULATORMICRO COMPUTER^&6

DEH-3750MP/XU/GS3212341234CDFABE- Waveforms Note : 1. The encircled numbers denote measuring points in the circuit diagram.2. Reference voltage REFO

DEH-3750MP/XU/GS3356785678CDFABE0 FIN# FE500mV/div500mV/div200ms/divFocus Search waveformRef.:REFOMode:TEST% RFAGC@ TE9 TIN1V/div500mV/div500mV/div50

DEH-3750MP/XU/GS3412341234CDFABE7 SIN8 CIN9 TIN1V/div500mV/div500mV/div500ms/divCD-ROM >> CD-DA mode change(Band key)Ref.:REFOMode:Normal% RFAGC

DEH-3750MP/XU/GS3556785678CDFABE

DEH-3750MP/XU/GS3612341234CDFABE4. PCB CONNECTION DIAGRAM4.1 TUNER AMP UNITCapacitorConnectorP.C.BoardChip PartAATUNER AMP UNITSIDE BSIDE ANOTE FOR P

DEH-3750MP/XU/GS3756785678CDFABEASIDE ABCN1801FRONTRCAANTENNAFM/AM TUNER UNITSSYREAR OUTPUT0111213141514221316

DEH-3750MP/XU/GS3812341234CDFABEAATUNER AMP UNITPCLTEST11

DEH-3750MP/XU/GS3956785678CDFABEASIDE BPCLEST11

DEH-3750MP/XU/GS412341234CDFABE CONTENTS SAFETY INFORMATION...

DEH-3750MP/XU/GS4012341234CDFABE4.2 KEYBOARD UNITBBKEYBOARD UNITSIDE ACLOCKEQVOLUMESOURCE12 BANDLCD1801436LOCAL/BSM5DOWNLOUDNESSDISPLAYRIGHTLEFTAUDIO

DEH-3750MP/XU/GS4156785678CDFABEBBKEYBOARD UNITSIDE BACN831

DEH-3750MP/XU/GS4212341234CDFABE4.3 CD CORE UNIT(S10.1)CCCD CORE UNIT(S10.1)SIDE AACN721PICKUP UNIT(P10)(SERVICE)HOMEM2LOADING/CARRIAGEMOTORM1SPINDLE

DEH-3750MP/XU/GS4356785678CDFABECCCD CORE UNIT(S10.1)SIDE B12EJ8EJDSCSNS

DEH-3750MP/XU/GS4412341234CDFABE5. ELECTRICAL PARTS LISTNOTE:• Parts whose parts numbers are omitted are subject to being not supplied.• The part numb

DEH-3750MP/XU/GS4556785678CDFABER 605 (B,84,21) RS1/16S222JR 606 (B,110,41) RS1/16S104JR 608 (B,104,63) RS1/16S0R0JR 609 (A,102,47) RD1/4PU473

DEH-3750MP/XU/GS4612341234CDFABEC 991 (B,20,50) CKSRYB473K50C 992 (A,26,60) CEJQ101M16C 994 (A,30,34) 470µF/16V CCH1331BUnit Number:Unit Name:Key

DEH-3750MP/XU/GS4756785678CDFABER 308 (A,32,83) RS1/16SS183JR 309 (A,38,89) RS1/16SS183JR 310 (A,35,88) RS1/16SS183JR 601 (B,43,59) RS1/16S101

DEH-3750MP/XU/GS4812341234CDFABE6. ADJUSTMENT6.1 CD ADJUSTMENT1) Cautions on adjustments• In this product the single voltage (3.3V) is used for the r

DEH-3750MP/XU/GS4956785678CDFABE[BAND][BAND][BAND][BAND][BAND]Power On(T.Offset is adjusted)TRK00 MIN00 SECSEC00[CD]or[SOURCE]Source OnTRK MIN[4]+[6]+

DEH-3750MP/XU/GS556785678CDFABE 1. SPECIFICATIONS

DEH-3750MP/XU/GS5012341234CDFABE6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT• Note :The grating angle of the PU unit cannot be adjusted af

DEH-3750MP/XU/GS5156785678CDFABEGrating waveform45°0°75°60°30°90°Ech → Xch 20mV/div, ACFch → Ych 20mV/div, AC

DEH-3750MP/XU/GS5212341234CDFABE6.3 ERROR MODE- Error MessagesError is displayed with number for Error cause when CD is inoperative or stops with Err

DEH-3750MP/XU/GS5356785678CDFABE6.4 SYSTEM MICROCOMPUTER TEST PROGRAM- PCL OutputIn the normal operation mode (with the detachable panel installed, t

DEH-3750MP/XU/GS5412341234CDFABE7. GENERAL INFORMATION7.1 DIAGNOSIS7.1.1 DISASSEMBLY- Removing the CD Mechanism Module (Fig.1)1Fig.1- Removing the C

DEH-3750MP/XU/GS5556785678CDFABE- How to hold the Mechanism Unit1. Hold the top and bottom frame.2. Do not squeeze top frame's front portion to

DEH-3750MP/XU/GS5612341234CDFABE- Removing the Pickup Unit1. Apply shorting solder to the Pickup flexible cable. Disconnect the cable.2. Set the

DEH-3750MP/XU/GS5756785678CDFABE7.1.2 CONNECTOR FUNCTION DESCRIPTIONPin No.12345678B.UPGNDACCNCNCB.REMNCNCPin No.910111213141516RL-FL-RL+FL+RR-FR-RR+

DEH-3750MP/XU/GS5812341234CDFABE7.2 PARTS7.2.1 ICPin No.12, 345, 678910111213141516171819, 20212223242526272829303132333435, 363738394041424344, 454

DEH-3750MP/XU/GS5956785678CDFABE202140416061801* PE5460APin No.63646566676869, 7071727374757677787980Pin NameasensbsensdsenssourceVSSVDDX2, 1IC(VPP)NC

DEH-3750MP/XU/GS612341234CDFABE

DEH-3750MP/XU/GS6012341234CDFABE- Pin Functions(PD6340A)Pin No. Pin Name I/O Function and Operation1-5 SEG4-0 O LCD segment output6-9 COM3-0 O LCD com

DEH-3750MP/XU/GS6156785678CDFABE- Pin Functions(UPD63763GJ) Pin No. Pin Name I/O Function and Operation 1 D.VDD Power supply for digital circ

DEH-3750MP/XU/GS6212341234CDFABE Pin No. Pin Name I/O Function and Operation 100 D.VDD Power supply for digital circuits 101 FD+ O Output

DEH-3750MP/XU/GS6356785678CDFABE- Pin Functions(PE5454A) Pin No. Pin Name I/O Format Function and Operation 1 AVREF A power supply Positi

DEH-3750MP/XU/GS6412341234CDFABE Pin No. Pin Name I/O Format Function and Operation 67 xread O CD LSI read control signal output 68 XASTB

DEH-3750MP/XU/GS6556785678CDFABENo. Symbol I/O Explain1 AMANT I AM antenna input AM antenna input high impedance AMANT pin is connected with an all

DEH-3750MP/XU/GS6612341234CDFABE7.2.2 DISPLAY- LCD(YAW5027)(DEH-3750MP/XU/GS, DEH-3750MP/XU/CN)- LCD(YAW5015)(DEH-3770MP/XU/CS)SEGMENTCOMMON

DEH-3750MP/XU/GS6756785678CDFABE7.3 OPERATIONAL FLOW CHARTAVREF1, VDD, AVDD=5VPin 7, 68, 74, 75Power ONbsens=Lasens=LbsensPin 64asensPin 63swvdd←LPin

DEH-3750MP/XU/GS6812341234CDFABE7.4 CLEANINGBefore shipping out the product, be sure to clean the following portions by using the prescribed cleaning

DEH-3750MP/XU/GS6956785678CDFABE8. OPERATIONS

DEH-3750MP/XU/GS756785678CDFABE

DEH-3750MP/XU/GS7012341234CDFABE

DEH-3750MP/XU/GS7156785678CDFABE

DEH-3750MP/XU/GS7212341234CDFABE

DEH-3750MP/XU/GS7356785678CDFABEAbout the fixing screws for the front panelIf you do not operate the Detaching and Replacingthe Front Panel Function,

DEH-3750MP/XU/GS7412341234CDFABE+≠+≠+≠+≠+≠+≠VioletWith a 2 speaker system, do notconnect anything to the speaker leadsthat are not connected to speake

DEH-3750MP/XU/GS7556785678CDFABE

DEH-3750MP/XU/GS7612341234CDFABE-Jigs List Test DiscL.P.F.TCD-782Checking the gratinggggChecking the grating ggg(Two pieces)()Name Jig No.Remarks

DEH-3750MP/XU/GS812341234CDFABE 2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKINGNOTES : • Parts marked by " * " are generally unavailable be

DEH-3750MP/XU/GS956785678CDFABE (1) PACKING SECTION PARTS LIST(2) CONTRAST TABLE DEH-3750MP/XU/GS, DEH-3770MP/XU/CS and DEH-3750MP/XU/CN are construc