Pioneer KEH-1900R Service manual
Contents
1. lt m L m w o m EE RE yyy i 5 e s s jefe ls zio sss 5 5 AS 12303 233 m amp wu s RU mE 11981 1180 HOLIMS 9 8 038 31941 WS INVH23A 4 i941 5199 8 4 3654 Js VA 5 3 4089 4089 ya YHON rudi E zu T rm T thea T m ms 75 5 N 1788 SgPeL 3dVvl d ano 72 r 1856 8 0 2 516 9 z oyo TUA FH 08975 NF 2 g xus de db PT pT a t 1 Qy01 9 7 is E X 218 B18 21828 E SIS Xv vise2. 1577 E eam Tuner unit nore lt gt Symbol indicates resistor l z 5555 No differentiation is made between chipresistors and Decimal points for res ees 84 55223 amp discrete resistors and capacitor fixed v 332539355353 AE Symbol indicates a capacitor expressed as 5Lg8258982285P 229222222582 No differentiation is made between chip capacitors and 2 25282 discrete capacitors 0 022 R022 T T 3 The Amark found on some component parts indicates the importance of the safety factor of the part z Therefore when replacing be sure to use parts of 1 gt E 1 identical designation i aig E gt gt 3 zl E Lii D I z 1 h m ed 1 cup ri FM 100 16085 RDS C
3. L 4 1 gm IOU zs 5 E i Lui 1 3 133 m Tong DOLE MN SOLON a TEST SITS ARMMMAMAMAAANAA j EIE E VOL 1040 SN761029DL 1 amen onon POR ANNA Em 0688 TT T T d W mp POWER AMP i am Lo j d shel E E en uu E 55 4 1 1 can s sf Ei 1 A 2 Flt n FL k a gt nazg at gt ge i 4 gl p E mE His FR TAPE 25dBs 9 5 as HEEL NEL E FM 9dBs MW LW 1dBs 12 a w sie 1 mazi mS su 33 ama 21 a RR 225 amp nts RR 5 RR RR TUUM un Tata 7 HH 2 K m 55 A F n GM ETT au 3 3 BACK UP R E nim BSENS AES l es BSENSE LCS Y AA 5 Sm gx i SE 8 RE rm ia sn pa ASENSE JE t sum gk gt uw Len ie E
4. Pin No Pin Name Format Function and Operation 1 RDT RDS data input 2 NC Not used 3 ADPW A D converter power 4 GND GND 5 DRST RDS decoder reset output 6 MDSENS Modulation detect input 7 AVREF1 Connect to VDD 8 KYDT l Key data input 9 DPDT Display data output 10 DSENS l Grille detach sense input 11 TUNPDI PLL IC data input 12 TUNPDO PLL IC data output 13 TUNPCK PLL IC clock output 14 TUNPCE PLL IC chip enable output 15 CURRO Tuner voltage FIX output 16 NC Not used 17 SK SK signal input 18 MUTCNT NF mute control input 19 21 NC Not used 22 SWVDD Grille power supply control output 23 NC Not used 24 VDT Data output for electronic volume 25 VCK Clock output for electronic volume 26 VST Strobe pulse output for electronic volume 27 SYSPW System power supply control output 28 MUTE C System mute output 29 DMINH Mechanism mute cancel output 30 31 NC Not used 32 EW BEW Model select input 33 GND GND 34 36 NC Not used 37 TMUTE Tuner mute output 38 FM FM power control output 39 AM AM power control output 40 44 NC Not used 45 PEE Beep tone output 46 NC Not used 47 RDS57K 57kHzBP OUT sense input 48 49 NC Not used 50 EJECT Eject key input 51 TAPLD Tape loading input 52 MECPW Cassette mechanism power output 53 MCMUT
5. 54 NOR REV Normal reverse input 55 59 NC Not used 60 RESET Reset input 61 LDET PLL lock sense input 62 RCK RDS clock input 63 CLKIN Clock input 64 ASENS ACC power sense input 65 BSENS Back up power sense input 66 SD SD input 67 ST FM stereo input 68 VDD Power supply 69 X2 Oscillator output 70 X1 Oscillator input 71 GND GND 72 NC Not used 34 KEH 1900R 1930R Pin No Pin Name Format Function and Operation 73 TESTIN l Test program mode input 74 AVDD A D converter analog power supply VDD 75 AVREFO A D converter standard voltage input 76 SL Signal level input 77 CL Composite level input 78 NL l Noise level input 79 TL Trigger level input 80 RDSLK RDS LK signal input Pin Functions PD6293A Pin No Pin Name 1 0 Function and Operation 1 5 SEG4 0 LCD segment output 4 0 6 8 COM1 3 Common driver output 1 3 9 COMO Common driver output 0 10 LCDB LCD bias power supply 11 14 KS3 0 Key strobe output 3 0 15 16 KDTO 1 l Key data input 0 1 17 REM Remote control reception 18 DPDT Display data input 19 NC Not used 20 KYDT Key data output 21 MODA GND 22 X0 Crystal oscillator connection pin 23 X1 Crystal oscillator connection pin 24 VSS GND 25 26 KDT2 3 Key data input 2 3 27 28
6. lt um ev V r I I A3ndg L a07 o L06097 1 T B BOB UU UU UU D DU ON NL N N NS NU NN B UNO S Q 0o U 5 uU N 2 G Q Q I O U B uU N 2 G Q O U uw N 2 Su Q9 W la lo l la Ja la la la la lo la la 72 72 732 72 728723 72 72 7287272 72 7287272 72 727272 72 7 2 732 72 72 7 2 72 72 Ira Ea Fm Em fn m Pa Fm Pn em m Em em fn Em em Fa Fm m m fen m a m m Pn F fm IS I BERR BB BBE BRE BEBERB BERBER BERBEEBEBEBBEBEBBEBE SEE EEE S S 5 ALL J Jon Je J JS J KB JS Jos JJ P 5 09N2 106N2 19 BI Tem I ko ko ko ko ko ko ko ko ko ko ko ko ko ko ko ko L L lo 5 o 11941 Fo Ro S IS FO RS M amp D S UD gt 5 P S JN s Zaby 1040 91941 Ts Ts T Tis Ts Tis T T Ts Pov Tov en T ov on n s 2 z Town jo N jm jo E 5 Xo o w 5 Tabu z 51941 Yi T CPU 035 16 8 i 2 VISA 12 15
7. SSRZSUSNEESSSZ ZTYS 15935 3 Wa asas A J aai E 4 N lt 11935 11935 T I lt 3191525 91935 8055 1165 J 51915 51925 5153 H2 V MIIN LX HOEGL H33I 6LY 1739 I 193S S 1935 7HNLE 3 4 81139 706 1061 5 5 T1935 SS 193S 491552 1 1 PSS tza 00 Z ow Z1S3 9165 165 ESSE SSS TTI Ts 1935 bet 3 q 8 36 1153 11935 0231 Lande ps 081935 o 583540 3398 I 01935 6S 910 5164 6935 75649 2166 5065 Li 918 l 9935 S 1936 zo 1935 Ald SHO m 9935 8 oo oo oooo gt Z gt gt lt gt lt 4 o m m m m 5666 xz Wi I Cl 3535 ya SSES ma 8865 5065 W jw ziS 0153 3IDWOR IM IET t Y Ya Ya Ya Jo lo le yy o Im m m m me le le T T I FES e e amp S voes 1968 1040 a cu mu cu un A 8188 9 gos BSAS 012551 7 YZ M43938 IS iilis ws S A3U ON 310 38 8 va cs als T TONT M 3 Sys 35 z uo1v7n938 ole E 0100nv pm E RUE 00 65 1851 fX S 22 9080 66 13534 5 t as HE e g 2 5 19252 um BR E z090 PR AAAAAA 9652052 3080 5 8 5 91 0
8. 0 13 WRMS Frequency response 40 14 000 Hz 3 dB Stereo separation 45 dB Signal to noise ratio 52 dB IEC A network Usable sensitivity R 11 dBf 1 0 uV 75 Q mono S N 30 dB 50 dB quieting sensitivity 16 dBf 1 7 uV 75 Q mono Signal to noise ratio 70 dB IEC A network Distortion 0 396 at 65 dBf 1 kHz stereo Frequency response 30 15 000 Hz 3 dB Stereo separation 40 dB at 65 dBf 1 kHz MW tuner Frequency range 531 1 602 kHz Usable sensitivity 18 uV S N 20 dB Selectivity 50 dB 9 kHz LW tuner Frequency range seen 153 281 kHz Usable sensitivity Selectivity 30 S N 20 dB 50 dB 9 kHz Note Specifications and the design are subject to possible modification without notice due to improvements
9. gi 3Wi 1 QUINOA JU AMO 95161 uoyng NVA uogng 35o O dSId TM 9 suoyng C li 5 suopnq 7 IS e jo iiec C pret 1 H rf suona uojing I gt Jv V L v fa o quuru1804d enna ld suonnq 4 100p 9311985893 odej 9 055 2 t 1 dOunos 19 8 4 9195583 jo 99 21524 AIKD 2119550 AY SUIS Kay E KEH 1900R 1930R 8 2 SPECIFICATIONS Specifications General FM tuner Power source 14 4 V DC 10 8 15 1 V allowable Frequency range 87 5 108 MHz Grounding system Max current consumption Dimensions mounting size 178 W x 50 H x 150 D mm front face 188 W x58 H x 19 D mm 2 1 2 Negative type 8 5 Amplifier Maximum power output Continuous power output DIN45324 144 V Load impedance 4 Q 4 8 Q allowable Tone controls 312 dB 100 Hz te 312 dB 10 kHz Loudness contour 10 dB 100 Hz 7 dB 10 kHz volume 30 dB Cassette player Tape Compact cassette tape C 30 C 90 Tape speed 4 76 cm sec 40 14 cm sec 0 05 cm sec Fast forward rewinding time Approx 90 sec for C 60 Wow amp flutter
10. s S LESS ag L gt ues C162 3837568 OTPSew OV 65481 T ST lt 5 18 C163 ROBI RI63 2R2K 20K 8 A ENVSENS MUTEadj 172 8 1 S z R33750 2 8 i a lt 0165 R103 33K 1 24 PNSSENS SDad LN zy R156 24K 2SC2412K 7 1 s is 15 iz R104 330K OTP6 RISS 27K leo co R247 12K 8 1 9V s B E QI AGC HCCadj 15 E a E ck m 3 2 zx d sgR2750 150K 8 X 1 3 A 4 PNS T 3 35 AGCgain a Le in 0105 68K lt x s CCP1213 N N N N N e dp G ec e quis ze Uem Lise HPF 1 31 825 2 C a gt z gt e S X X lt X 9 gt C187 RO R07 2R2K lt E lt lt T ias SMPNS ENVHCC 1289 1 B c58 33 10 155 383 50 5 5 t Jass Voc O 5088 11 3 8 Z 5 lt lt Q 5 X 9 amp E I MUSE C152 R1 1 X lt x x X 89 N ewean d C57 4788 5 2 65481 tot P M A ON XN i O 3 J s 3 z mea Nga SD HOLD C 934 4 4 4 4 sj R101 231 c10 gt T 1 200kSD PNSIN M C56 RI 3 9V FMN RIOZ GREK 55 R022 4 T 2 842 SDr COMP E 10710 VPN FW R231 C238 l R55 Laas SL cist 4700P EA iK 4 3V 65dBf 2RTK RU TET e kg C51 8022 8
11. m a 76 8 KEH 1900R 1930R B o x c a a z z gt UNER UNIT 4 z 5 uas 5 5 gt e lt lt E lt wo in Lu N 0 5 s FM MPX 2 R168 2R2K 5 LPF LOOP 243 AM AL i 2 Eon Els T LPF LOOP 25 2 s 5 5 5 1 DET 4 Au to 2 BV IFC D WE Iw von monoj RE MO STIND 22 DTC124EU m X151 551355 IZI 3 5 _ gt 2 AMIN 21 8 int m TH rm AN RI61 56K AM 78 10 1 4 i J i x mile DDSSENS Rch 20 X151 918 5Hz s E C160 RI LIV x mi z t 1 so ARCr Leh19 z cu 2 R162 1M 5 1V 55dBf d cR ups Se 2 1 ENVr AFGND
12. pud MUTI WEES mu Tr 983 ya a INIT ment t T lolo S7275 a 394 093 visu SURGE dis SM W PET Ur 8252 an 5 091 Og CIS00RT T3 X3 T 099 I m al T T 12 amp g S Eg n3 xia Ba EE s 18 3 LIE s 3 B 1481589 5 E EN S iii 2 a Le I3 Ta 2 3221 z 32 OF 15 9 15 e Say o r oun 5 NINIS 3 LL z her 5151 18 SIR 223 8 lt 2 8 0 my Mg 52 2 Sere 2198 14 azz amp QoS S lt s s 98224 A EE Ix yani 2 EE 218 4 als 8 21 DYYNI 8L WP 30d VLOOCWd UH 104 ABZ 9019 W P 91 098 0521 Ast FNL _ ROT a L m gom E whe eg CL Eos 2 228 8 z g z 25 Mo of alg alg EE 959 155 T EE pls um I gt 63921910 H 8030 4 1 915 N3Nnl 3dVl z i 7WNBIS Jini gx EE 58 94 05 M l MN WNOIS 34 1 T 3 59 91 X001 sym ass 11
13. Switch LOAD Switch MUTE Switch FWD REV Switch EJECT Miscellaneous Parts List M 1 HD 1 FU 951 Motor Unit Head Assy Fuse 10A Cassette PCB Part No CKSOYB104K16 CCSRCH560J50 CKSQYB104K16 CCSRCH101J50 CEJA470M6R3 CKSRYB103K25 CCSRCH101J50 CEJA1R5M50 CCSRCH471J50 CKSRYB103K25 CKSRYB103K25 CCSRCH330J50 CCSRCH150J50 CKSOYB104K16 CEJA330M 10 CKSRYB332K50 CKSOYB473K16 CCSRCH120J50 CKSRYB472K50 CEJAR47M50 CKSOYB104K16 CEJAR47M50 CEJAR33M50 CKSOYB473K16 CKSRYB123K25 CKSOYB473K16 CCSRCH471J50 ESN1016 ESN1017 ESH1006 ESG1006 RD1 4HM472J EXA1467 EXA1466 CEK1136 KEH 1900R 1930R 6 ADJUSTMENT Connection Diagram 14 4 GND Power Supply GND Lch mV Meter 1 Oscilloscope Dummy Antenna 500 37 50 Antenna e Stereo Modulator 500 750 FM AM TUNER UNIT TOP VIEW Pin26 r I 1 I I Antenna 4 Jack TUNER AMP UNIT DCV Meter 1 Pin14 E z 2 E z 2 Pin13 lt O701 EMITTER Hs DCV Meter 2 1 TUNER UNIT BOTTOM VIEW Center Meter 2 T51 31 KEH 1900R 1930R FM ADJUSTMENT Modulation M MONO MOD 400Hz 30 22 5kHz Dev or 400Hz 100 75kHz Dev S STEREO MOD
14. BueiO 6 de 1989 0410100 aui JO dayeeds 1uBru Lz Jeyeeds 51 s14 pue 6j 819euuoo ovens an eer JO uo Buipuedeq eq LL OL uonoun eu ejorus LL ped Ajasesedas pjos 6 Ajo1e1edes pjos nlg L 0 OQ AZL 008 euu luv yeu IUU19 O 3u09 Aejas m u ciii oiny 10 dwe je od ey gt mano jeeyz 043009 5 01781 wun syri Ajeeaedes pjos 56 4 uid you sp109 91 5 uonounj 9y 55109 19euuoo pue sjonpoJd 1406 jo uonejjeisu perjddns y 01 19191 JONPOId 1onpoud siy 8uinoeuuoo u uAA u1 Ady J 519100 1u949JJIp sjonpoud 19470 10 pue 49 siu1 104 Sp109 NOILQVO 210990002 OS vYL 38 KEH 1900R 1930R 8 1 OPERATIONS NUI uonoun ur 440 NO uonoun uis 5 5 930N s1eoddesip Spuooos 7 10 39 Surung enue A YIM oun uonoung Suung 995 jeu uonejs Surseopeodq 1991
15. it UU C gt ale 9 li 109N2 8 5241 sandi g is M 8901 52 5080 2 1 X 3 1582052 1880 wp EIZIE uer 2 5 1097 5 ane 55 EL MASAS Vide E Uv usza v 3SN3SV SN3SY ss 25V si gm 190 196155 m AE 012551 z T iB T Xu jSN3S8 5 r SN35H 017551 z 5 194252 ttt 5190 INV df Ova dn go d 29 lin 02551 dn 5 6890 an t Kom zz 12 508 Nvv L08 S E eph Uus 2 2850 i d 3 L j dg c LL s ve alee OT 1958 ds E l 5 L w 3053 PST i238 9 34 1 x mE SgPL ANT MIN 4 sg
16. 5 5 4 Key strobe output 5 4 29 55 SEG39 13 LCD segment output 39 13 56 VCC 5V 57 64 SEG12 5 LCD segment output 12 5 IC s marked by are MOS type Format Meaning Be careful in handling them because they are very C C MOS liable to be damaged by electrostatic induction PE5016A PD6293A 35 KEH 1900R 1930R 7 1 2 DISPLAY CAW1512 Ez Y u n D A RTVA UT m Fi 555 e n ER 49685 EY t a ER E 5 m lt lt E Ay gt E vNOS N02 2402 NOINIWOO 9935 6935 293g 1 729361 1935 1N3IND3S 36 KEH 1900R 1930R 7 2 DISASSEMBLY Cassette Mechanism Assy Remove the Case not shown 1 Remove the three screws 2 Remove the Case Remove the Cassette Mechanism Assy not shown 1 Remove the four screws 2 Di
17. 5 8 Be 11 5 e 85 D 9 h 1001 1 Ss s sau 58971052 5830 sila 4 m 215 z US Siu 4 T 7 alg 53 senio 8190 senos E zl a tatale E 508 1 218 TEL alg 100 378 STe N 1 5558 3 25 5 4 lt TT TY T uo eu6is p esijuapi Shu E siyed esn euns eq 6uioe deJ usym eJgojeueu suis 44ed y jo 101984 Ayayes aui eouejJodu eui 51484 euos uo punoj y I I D L r Ss A aiee pue euoiioedes diuo ueswieq aaf Uu 522 2222 ze s 5 zz 2 5 5 pessoudxe JO1 0edeo e oquAS GE _ 00 Sa S488 155 gt w E oyan Joi oedeo pue sJ01s soJ e38Jos p 222 2 2f S S 104616 2 siulod jew oag pue suoasis j diuo 4 epeu s uo 1e 1u09494j p ON 25 22 2227 2 1 yoys sau e OQUAS I ALON LINA YANNL INV INJ I BS Be i a Y lt m
18. See Contrast table 2 53 Button See Contrast table 2 54 Button 1 6 D B CAC5881 55 Button See Contrast table 2 56 Button SO OFF PGM See Contrast table 2 57 Spring CBH1836 58 Spring CBH2103 59 Grille Unit See Contrast table 2 60 Cover See Contrast table 2 61 Keyboard Unit See Contrast table 2 62 LCD LCD901 CAW1512 63 Connector CN901 CKS3580 64 Holder CNC8054 65 Connector CNV5586 66 Rubber CNV5587 67 Holder CNV5589 68 Lighting Conductor CNV5752 69 Case Assy CXB3520 70 501 TDA7384 71 Fuse 10A FU951 CEK1136 72 Transistor Q804 2SD2396 73 Cassette Mechanism Assy EXK3450 KEH 1900R 1930R 2 CONTRAST TABLE KEH 1900R X1M EW and KEH 1930R X1M EW are constructed the same except for the following Part No Mark No Description KEH 1900R X1M EW KEH 1930R X1M EW 30 Chassis Unit CXB3224 CXB3225 41 Panel Unit CXB3714 CXB3716 42 Door CAT2028 CAT2037 44 Panel CNS5211 CNS5212 46 Detach Grille Assy CXB3376 CXB3373 49 Button Eject CAC5870 CAC5871 50 Button REW CAC5872 CAC5873 51 Button FF CAC5874 CAC5875 52 Button Cross A F CAC6127 CAC5877 53 Button CAC5878 CAC5879 55 Button CAC6128 CAC5883 56 Button SO OFF PGM CAC5884 CAC5885 59 Grille Unit CXB4038 CXB4039 60 Cover CNS5209 CNS5210 61 Keyboard Unit CWM6272 CWM6274 KEH 1900R 1930R 2 3 CASSETTE MECHANISM ASSY KEH 1900R 1930R CASSETTE MECHANISM ASSY SECTION PARTS LIST Mark No
19. 10S104J R 653 RS1 10S104J C 206 CKSOYB333K50 R 655 RS1 10S223J C 207 CEJA101M10 C 208 CEJA101M10 R 656 RS1 10S103J C 209 CEJA1ROM50 R 657 RD1 4PU472J C 210 CEJA1ROM50 R 658 RS1 10S473J R 659 RS1 10S223J 211 CEJA101M10 R 660 RD1 4PU473J C 301 CKSOYB223K50 C 302 50 223 50 R 661 RS1 10S473J C 303 50 223 50 R 662 RD1 4PU223J 307 CKSOYB103K50 R 663 RD1 4PU473J R 664 RS1 10S222J R 673 RS1 10S0R0J 27 KEH 1900R 1930R Circuit Symbol and No Part Name Part No Circuit Symbol and No Part Name Part No C 308 CCSOCH101J50 C 620 5 101 50 C 31 CCSQCH101J50 C 621 CCSQCH101J50 C 313 CKSOYB223K50 C 623 CKSOYB102K50 C 31 CKSQYB473K50 C 701 CEJA4R7M35 C 315 CEJA220M6R3 C 702 50 104 16 316 CKSOYB103K50 C 1703 CCSOCH220J50 C 317 CKSQYB103K50 C 704 CCSQCH220J50 C 318 CKSOYB102K50 C 705 50 472 50 319 CEJA220M10 C 706 50 104 16 320 CCSQCH150J50 C 707 CKSYB105K16 C 321 CCSOCH150J50 C 708 CKSOYB104K16 C 322 CKSQYB103K50 C 709 CKSQYB222K50 C 324 CEJAR47M50 C 710 CKSOYB104K16 C 325 4J7yF 16V CCH1250 C 71 CKSOYB104K16 C 326 CKSOYB103K50 C 712 50 223 50 328 CKLSR473K16 C 713 CEJA4R7M35 C 331 CKSQYB104K16 C 714 CKSQYB103K50 C 332 CEJA220M6R3 C 715 CKSOYB103K50 333 CKSOYB103K50 C 716 CKSOYB223K50 C 334 CEJA220M6R3 C 717 50 471 50 335 CKSOYB103K50 C 801 3300 16 CCH1018 336 50 223 50 802 470pF 16V 1183 337 CKSOYB103K5
20. 115 SS z l T i 1 dio YA 1 5 m z B EE Wo wa 7 73 sgprz 3dvl E E o nu u A 1794 di9igV1 10021 8 T Tom Xv 519 58911252 03 90 709 yar aiv h WSINYHOIN 8 8 B w UL E i o v 5 w pe Te 2 Baa ET 3 8 z IE es zega S 4 XIL O 5 051 E 4 I I 137109102 3156 s 1 4 gt 6941 wn ST TII T Tu l Lr gt Yd pet i alz 8l 1 5 mmRUS ra iva og ms 5 p 5 zia zB E V91 S4d OL 3 3 E s RE 5 1040 gt 4 ow 10 4 zs 320040U UuN m err 5 10921 um E PB I L 8900 vd z iun ET 3 PE JILI a E 5 Tm 4 UTS Du 8 Nu ES CETTE lo ono gt E Eje NE z z s Lo I lt s F Sess sete sisle y I Eri S IS 3 zm 2 10 4 z z A 4 4 4 g z 2238 L 4 1 S qu aseuE5ss nzzBESPpER Te a 2 2 E E Tn JS JN Jo qu 4 o o fw w E AAAAA I Fus zl ji E T i Erin I ape Jd 25 TUS 177 579 i
21. 194 SWITCH bj secs a602 BUP BACK UP MUTE SWITCH MUTE DMINH a ACC Vs LOAD SWITCH LOARD PE GND gt B B REMOTE Gen Ha MOTOR M BACK UP D CASSETTE PCB T MECHANISM 28 MUTE amp l amp B SWITCH 2 8 E PEE NOR REV SYSTEM u EJECT CONTROLLER MCMUT gt TAPLD IC 601 272 WecPw o SYsPw 4 27 svsew S 5 22 5V REGULATOR M svs g 8 5 REGULATOR Q809 0802 4 0804 BUS k d VDD KEY LCD DRIVER IC 901 PD6293A KEYBOARD UNIT 1 KEH 1900R 193 OR 3 2 OVERALL CONNECTION DIAGRAM GUIDE PAGE Note When ordering service parts be sure to refer to EXPLODED VIEWS AND PARTS LIST or ELECTRICAL PARTS 10 LIST Large size SCH diagram
22. 1kHz L or R 30 20 25kHz 7 5kHz Dev NOTE Before proceeding to further adjustments after switching power ON let the tuner run for ten minutes to allow the circuits to stabilize FM SSG Displayed Adjustment Adjustment Method No Frequency MHz Level dBf Frequency MHz Point Switch Position TUN Volt 1 2 2 108 0 L5 DC V Meter 1 6V IF 2 98 1 M 60 100 98 1 T51 Center Meter 0 ANT Coil 3 98 1 M 5 98 1 L2 mV Meter 1 Maximum 4 98 1 M 5 98 1 L4 mV Meter 1 Maximum RF 5 129 3 M 60 80 107 9 TC1 mV Meter 1 Minimum Trimmer 6 RF Coil and RF Trimmer shall be adjusted twice or more IFT 7 98 1 M 5 98 1 T31 mV Meter 1 Maximum STEREO MODE ARC 8 98 1 S 40 98 1 VR154 mV Meter 1 Separation 5dB STEREO MODE RDS SL ADJUSTMENT FM SSG Displayed Adjustment Adjustment Method No 2 Level dBf Frequency MHz Point Switch Position 1 104 0 S 35 104 0 VR701 DC V Meter 2 1 75V 0 05 0 35 KEH 1900R 1930R 7 GENERAL INFORMATION 7 1 PARTS 7 1 1 IC SN761029DL 1010919q 88012 0192 ssoeupno 9UJh OA gt sng leas 3 D D TONEout L FADERin L FRNTout L REARout L VREFin 33 KEH 1900R 1930R Pin Functions PE5016A
23. 231 Inductor LCTA3R3J3225 R 237 RS1 16S103J T 31 Coil CTE1116 R 238 RS1 16S104J 29 KEH 1900R 1930R CAPACITORS NDOANA NGANA NGONO NGONO NGONO NGONO NGONO 30 00 N 10 11 13 14 16 17 18 19 20 21 23 24 25 31 32 33 34 36 51 52 54 55 56 57 59 61 62 63 101 102 103 104 105 106 107 151 152 153 154 157 158 159 160 161 162 163 170 201 202 203 204 205 RS1 16S104J RS1 16S332J RS1 16S202J RS1 16S123J RS1 16S103J RS1 16S123J CCSOCH6R0D50 CCSRCK2R0C50 CCSRCH820J50 CCSRCH820J50 CKSRYB103K25 CKSOYB104K16 CCSRCKR50C50 CEJA1ROM50 CKSRYB222K50 CCSRCH220J50 CCSRCH8ROD50 CKSRYB222K50 CKSRYB103K25 CKSRYB222K50 CKSRYB222K50 CEJA100M16 CCSRTH9ROD50 CCSRTH120J50 CCSRCH471J50 CKSRYB103K25 CKSRYB103K25 CKSQYB472K50 CCSRCH5ROC5O CKSQYB104K16 CCSRRH201J50 CKSRYB223K25 CKSRYB103K25 CCSRCH470J50 CKSQYB223K25 CKSOYB104K16 CKSRYB472K50 CEJA330M 10 CKSRYB103K25 CCSRCH270J50 CKSRYB103K25 15 50 CEJANP100M10 CKSRYB182K50 CKSRYB682K25 CEJA2R2M50 CKSRYB103K25 CCSRCH151J50 CKSRYB103K25 CKSRYB472K50 CKSOYB104K16 CEJA3R3M50 CKSOYB104K16 CEJA3R3M50 CKSYB474K16 CEJA220M6R3 CKSQYB104K16 CKSOYB104K16 CEJA3R3M50 CKSRYB102K50 CCSRCH100D50 CCSRCH471J50 CCSRCH100D50 CKSRYB332K50 CKSQYB473K16 CKSQYB473K16 1 2 3 4 1 Unit Number Unit Name S S S S R
24. Description Part No Mark No Description Part No 1 Screw BSZ23P050FMC 46 Gear ENV1475 2 Washer CBG1003 47 Gear ENV1512 3 Connector CN1 CKS2829 48 Gear ENV1513 4 Screw M2x5 EBA1038 49 Gear ENV1502 5 Screw M2x2 5 EBA1037 50 Lever ENV1480 6 Spring EBH1554 51 Lever ENV1487 7 Spring EBH1555 52 Pinch Holder Unit 1516 8 Spring EBH 1556 53 Arm ENV1519 9 Spring EBH1603 54 PCB ENP1161 10 Spring EBH1591 55 Switch EJECT S4 ESG1006 11 Spring EBH1559 56 Switch FWD REV S3 ESH1006 12 Spring EBH1593 57 Switch LOAD S1 ESN1016 13 Spring EBH1561 58 Switch MUTE S2 ESN1017 14 Spring EBH1562 59 Head Assy HD1 EXA1466 15 Spring EBH1563 60 Motor Unit M1 EXA1467 16 Spring EBH1590 61 Flywheel Unit EXA1547 17 Spring EBH1565 62 18 Spring EBH 1566 63 Arm Unit EXA1447 19 Spring EBH1567 64 Arm Unit EXA1448 20 Spring EBH1568 65 Arm Unit EXA1550 21 Spring EBH1569 66 Reel Unit EXA1450 22 Spring EBH1571 67 Pinch Holder ENV 1466 23 Spring EBH1579 68 Pinch Roller ENV1518 24 Head Base ENC1475 69 Pinch Holder ENV1467 25 Lever ENC1429 70 Pinch Holder Unit 1515 26 Lever ENC1430 71 Chassis Unit EXA1498 27 Lever ENC1431 72 Arm ENV1524 28 Lever ENC1432 73 Washer CBF 167 29 Arm ENC1433 74 Resistor R1 RD1 4HM472J 30 Arm ENC1434 75 78 90955 31 Arm ENC1480 79 Cover ENC1452 32 Arm ENC1476 80 33 Bracket ENC1512 81 Spring EBH1592 34 Lever ENC1523 82 Washer CBF1051 35 Arm ENC1524 36 Frame ENC1440 37 Holder ENC1441 38 Lever ENC1446 39 Lever ENC1478 4
25. EW CRD2807 French lItalian German CRD2809 English Spanish Dutch French Italian German KEH 1900R 1930R 2 2 EXTERIOR 1 EXTERIOR SECTION PARTS LIST Mark No Description Part No 1 Screw BSZ26P050FMC 2 Screw BSZ30P100FMC 3 Cord Assy CDE5807 4 Terminal Cover CKX 003 5 Case CNB2481 6 Screw BSZ30P055FUC 7 Screw BSZ30PO60FMC 8 Screw BSZ30P100FMC 9 Holder CNC5704 10 Cushion 4870 11 Insulator CNM5025 12 Tuner Amp Unit CWM6350 13 14 Screw BSZ26P080FMC 15 Screw BSZ26P140FMC 16 FM AM Tuner Unit CWE 1466 17 Holder CNC6554 18 19 Plug CN601 CKM1270 20 Connector CN604 CKS3362 21 22 Connector CN603 CKS3581 23 Antenna Jack CN301 CKX1056 24 Panel CNB2246 25 Holder CNC5399 26 Holder CNC6216 27 Heat Sink CNC6217 28 29 Holder CNC6845 30 Chassis Unit See Contrast table 2 31 Holder Unit CXB2687 32 Button 4836 33 Spring CBH1834 34 Spring CBH1835 35 Spring CBH1996 36 Bracket CNC6135 37 Bracket CNC6791 38 Arm CNV4692 39 Arm CNV4693 40 Arm CNV4728 KEH 1900R 1930R Mark No Description Part No 41 Panel Unit See Contrast table 2 42 Door See Contrast table 2 43 Spring CBH1838 44 Panel See Contrast table 2 45 Screw IMS20P030FZK 46 Detach Grille Assy See Contrast table 2 47 Screw BPZ20P120FZK 48 Button Detachable CAC5869 49 Button Eject See Contrast table 2 50 Button REW See Contrast table 2 51 Button FF See Contrast table 2 52 Button F A Cross
26. LAS 61P FE uno ho s CASS ETTE 1 3 TAPE 24dBs ET 5 5 m vs E EQ an me tg L Ue vs 1 gi ales sak Jenga i i T id D E m XE qu eye pan 7 dd 315Hz 098 5 4 EJE a TAPE 75dBs gen ur gt 5 s KR 6 MECHANT zz B SWIT ET ad S me x Eeer Sw y E 5 6 7 8 KEH 1900R 1930R LY TUNER UNIT
27. T 8 4444 Veo MUTE 5 m E 1 4 5 UN EE c59 Ri t i 2 245 IFLPF AFC 4 C63 R15 50 652 TPA CENTER METER t n 2 2046 IFVref Vref 5 4 4 4 sh RP c62 ROI EI SUS CF53 R52 2 24 3 9 S 947 FIN Q IN E 56 gt AE CF52 a HI 8 Mas IFGND IFOUT 12 3 5 M TH 4 27P ies F TH 1 5 um 2 um 3 4 1 K H 1900R 1930R 4 PCB CONNECTION DIAGRAM 4 1 TUNER AMP UNIT NOTE FOR PCB DIAGRAMS 1 The parts mounted on this PCB ICQ ADJ include all necessary parts for several destination 0804 For further information for respective destinations be sure 0801 to check with the schematic diagram 0809 2 Viewpoint of PCB diagrams Connector Capacitor SIDE E 0805 0501 Q807 0810 0702 IC302 P C Board Chip Part SIDE B IC501 Rosa TUNER AMP UNIT a303 2 SS C614 PW J ICeg1 SS 0704 JAJI P 0705 0608 0610 0609 ynzgi 2 9721 9501 0809 0602 0601 0611 5 0605 901 EN 8 KEH 1900R 1930R z E Ou Ps a 1 KEH 1900R 1930R SIDE B IC801 Q606 Q4g1 IC6035 0607 0805 Q811 IC3 1 0806 0808 IC401 IC601 7 IC7 1 8 KEH 1900R 1930R KEH 1900R 1930R 4 2 FM AM TUNER UNIT SIDE A YS 91
28. 0 Belt ENT1027 41 Gear ENV1504 42 Gear ENV1470 43 Gear ENV1517 44 Lever ENV1472 45 Gear ENV1510 KEH 1900R 1930R 3 BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3 1 BLOCK DIAGRAM KEH 1900R X1M EW EN tuner AMP UNIT 3 TUNER UNIT FIN eA 931 cr M AM FM AM IF 0705 9609 m TUN L TUNER MUTE TUR t 2608 RESET 4 FM AM PROCESSOR FM PROCESSOR osc 40238 IC 2 PA4024A 0201 0202 fe 3 fie J 23 25 28133 40 qup Lo LIT 1 AMRF AGC 5 CF232 AM 865 E gt amp 4 AMV AM 3 AMBe lt 1 D 22 x2 SYSTEM esc 8 28 CONTROLLER I sc 19 20 1517 14 13 21 5 IC 601 1 2 I sp LDET 5016 2007 1o 0805 0807 FIX B LDET IC 702 NJM2903M ROSS7K AMTV PLLIC AM FM 808 RDS DATAE PDO PCK PDI PCE TUN L TUN L TUN L TUN L ELECTRONIC VOLUME POWER RL EQ 8 IC 401 R RL 201 SN761029DL 7584 FL iG FWD REV SWITCH t ASP 15 FL FL FL REV Qe 5 P VDT VCK VST o FwD 0601 FU951 FWD REV MUTE
29. 0 C 803 50 102 50 340 47pF 16V 1165 804 CKSQYB473K50 C 341 CKSQYB103K50 C 805 CEJA101M10 342 CKSQYB473K50 C 806 CKSQYB103K50 343 50 102 50 807 330pF 10V 1181 401 CEJA2R2M50 C 808 CKSQYB103K50 C 402 CEJA2R2M50 C 809 CKSOYB104K16 C 403 CEJA100M16 C 811 100 6 CCH1179 C 404 CEJA100M16 Unit Number CWM6272 KEH 1900R X1M EW C 405 50 822 50 Unit Name Keyboard Unit C 406 50 822 50 407 CEJA1ROM50 MISCELLANEOUS C 408 CEJA1ROM50 901 PD6293A C 409 CKSOYB183K50 D 901 Diode STZ6R2N C 410 CKSOYB183K50 L 901 Ferri Inductor LAU101K C 41 CKSOYB104K16 X 901 Ceramic Resonator 4 97MHz CSS1422 C 412 CKSOYB104K16 IL 901 Lamp 14V 40mA CEL1547 C 413 CKSOYB104K16 IL 902 Lamp 14V 40mA CEL1547 414 50 104 16 IL 903 Lamp 14V 40 CEL1547 415 CEJA100M16 IL 904 Lamp 14V 40mA CEL1547 C 416 CEJA2R2M50 LCD 901 LCD CAW1512 C 417 CKSQYB473K50 C 418 CKSOYB104K16 RESISTORS C 419 CEJA470M10 R 901 RS1 108222J C 420 CEJA2R2M50 R 902 51 105222 423 5 105 16 R 903 51 105472 424 5 105 16 R 906 RS1 108473J C 501 CKSYB224K16 R 907 51 105473 502 5 224 16 R 908 RS1 108473J C 503 CKSYB224K16 R 909 RS1 108473J C 504 CKSYB224K16 R 910 RS1 108473J C 505 CEJA1ROM50 R 911 RS1 108473J C 506 CKSYB105K16 R 912 51 105473 C 507 CEJA100M16 R 914 RS1 10S0R0J C 508 CEJA330M10 R 916 RS1 10S0R0J C 510 CKSOYB104K16 C 601 CCSOCH101J50 CAPACITORS C 6
30. 02 CEJA4R7M35 C 901 CEAL100M16 C 604 CCSOCH101J50 C 904 CKSOYB104K16 C 606 CKSOYB104K16 C 905 50 102 50 607 50 224 16 906 5 101 50 608 2 2 50 619 50 102 50 eae KEH 1900R 1930R Circuit Symbol and No Part Name Part No Circuit Symbol and No Part Name Part No Unit Number CWM6274 KEH 1930R X1M EW T 51 Coil CTC1136 C Unit Name Keyboard Unit TC 1 Trimmer CCL1046 CF 51 Ceramic Filter CTF1442 MISCELLANEOUS CF 52 Ceramic Filter CTF1442 CF 53 Ceramic Filter CTF1442 IC 901 IC PD6293A D 901 Diode STZ6R2N CF 232 Ceramic Filter CTF1348 L 901 Ferri Inductor LAU101K x 151 Radiator 918 5Hz CSS1365 X 901 Ceramic Resonator 4 97MHz CSS1422 X 23l Crystal Resonator 10 26MHz CSS1111 IL 901 Lamp 14V 40mA CEL1479 VR 154 Semi fixed 150kQ B CCP1213 AR 1 Capacitor with Discharge Gap DSP 201M IL 902 Lamp 14V 40mA CEL1479 IL 903 Lamp 14V 40mA CEL1479 IL 904 Lamp 14V 40mA CEL1479 RESISTORS LCD 901 LCD 1512 R 1 RS1 16SOROJ RESISTORS R 4 RS1 16S154J R 5 51 165391 R 901 RS1 10S222J R 6 RS1 16S223J R 902 RS1 10S222J R 7 RS1 16S123J R 903 RS1 10S472J R 906 RS1 10S473J R 8 RS1 16S332J R 907 RS1 10S473J R 9 RS1 16S473J R 10 RS1 16S223J R 908 RS1 10S473J R 11 RS1 16S124J R 909 RS1 10S473J R 13 RS1 16S563J R 910 RS1 10S473J R 911 RS1 10S473J R 15 RS1 16S271J R 912 RS1 10S473J R 16 RS1 16S104J R 17 RS1 16S332J R 914 RS1 10SOROJ R 18 RS1 16S332J R 916 RS1 10SOROJ R 31 RS1 16S470J
31. 056 H D 805 Diode 8091 602 5 80734 701 PM4006B D 806 Diode 1SR139 400 702 IC NJM2903M D 807 Diode 1SR139 400 IC 801 IC TPD1018F L 301 Ferri Inductor LAU101K Q 301 Transistor 2SC1740S L 302 Ferri Inductor LAU2R2K L 601 Ferri Inductor LAU101K O 501 Transistor DTC124ES 502 Transistor DTC124ES L 602 Ferri Inductor LAU101K O 601 Transistor DTC143TS L 603 Ferri Inductor LAU101K O 602 Transistor DTC124ES L 701 Ferri Inductor LAU101K Q 603 Transistor 2SC1740S L 951 Choke Coil 600mH CTH1168 X 301 Crystal Resonator 7 200MHz CSS1379 608 Transistor 124 5 609 Transistor DTC143TS x 601 Ceramic Resonator 4 194MHz CSS1047 610 Transistor DTC143TS X 701 Crystal Resonator 4 332MHz CSS1056 61 Transistor 2SC1740S VR 701 Semi fixed 22kO B CCP1321 O 612 Transistor 25 2412 801 2 1176 FM AM Tuner Unit CWE1466 O 613 Transistor 25 2412 701 DTC143TS RESISTORS 702 Transistor 2SC1740S O 703 Transistor 2SD1468S R 201 RS1 10S273J O 704 Transistor 2SD1468S R 202 RS1 10S273J R 203 RS1 10S104J O 801 Transistor 2SD2037 R 204 RS1 10S104J O 802 Transistor 2SB1243 R 205 RS1 10S472J O 803 Transistor 25 2412 O 804 Transistor 2502396 R 206 RS1 10S472J O 805 Transistor 2SA1048 R 207 RS1 10S470J R 208 RS1 10S470J Q 806 Transistor 2SC2412K R 209 RS1 10S273J O 807 Transistor 2SA1674 R 210 RS1 10S273J O 808 Transistor 25 2412 809 Transistor 2SA933S R 301 RS1 10S272
32. 1 10S222J R 349 RD1 4PU102J R 719 RS1 10S223J R 350 RS1 10S510J R 720 RS1 10S223J R 351 RS1 10S0R0J R 721 RS1 10S105J R 352 RS1 10S0R0J R 722 RS1 10S224J R 353 RS1 10S0R0J R 723 RS1 10S562J R 354 RD1 4PU 102J R 724 RS1 10S681J R 355 RS1 8SOROJ R 725 RD1 4PU681J R 403 RS1 10S272J R 726 51 105681 R 404 RS1 10S272J R 727 RS1 10S102J R 405 51 105151 R 801 RD1 4PU 102J R 406 RS1 108151J R 802 RS1 10S472J R 407 51 105221 R 803 RS1 108101J R 408 51 105221 R 804 RD1 4PU332J R 501 RD1 4PU 103J R 805 RS1 10S103J R 502 RS1 10S153J R 806 RD1 4PU 102J R 503 51 105221 R 807 RD1 4PU 122J R 504 51 105101 R 808 RS1 10S103J R 505 RS1 8S103J R 809 RS1 10S102J R 601 RS1 10S104J R 810 RD1 4PU473J R 602 51 85104 812 RS1 10S103J R 604 RS1 10S473J R 813 RS1 10S102J R 610 RD1 4PU473J R 814 RS1 10S473J R 612 RS1 8S473J R 816 RS1 10S472J R 613 RS1 10S473J R 817 RS1 10S223J R 614 RS1 10S473J R 818 RS1 10S222J R 615 RS1 10S222J R 819 RS1 10S472J R 616 RS1 10S222J R 820 RD1 4PU 102J R 617 RS1 10S222J R 821 RD1 4PU 1R5J R 618 RD1 4PU 103J R 822 RD1 4PU1R5J R 619 RS1 8S473J R 823 RD1 4PU 1ROJ R 620 RS1 10S473J R 824 RS1 10S103J R 621 RD1 4PU104J R 825 RS1 10S103J R 622 RS1 10S473J R 623 RD1 4PU473J CAPACITORS R 624 RS1 10S332J R 625 RS1 10S102J C 201 CKSOYB681K50 R 630 RD1 4PU 152J C 202 CKSOYB681K50 C 203 CEJA2R2M50 R 631 RS1 10S102J C 204 CEJA2R2M50 R 632 RS1 10S124J C 205 CKSOYB333K50 R 652 RS1
33. 11 SEG38 sect 27 mum n AUDIO 5 voL S G37 S2585 5855255 k me 18 stele F G 32 353535333335353355 95 m B 1 SEG36 NIU s 1 TS ber sg MEE 2 E53 app ss sr RETT ipm ANI 200 KDT1 TES P f 1 ui 1 5 981 CN603 bd dazzcuddds3 2228252524424292341242324233422324323333 eee 8 8 5 51 0 4 2 0 0 AMY DOR DASH OAS O S OOS AMY 88 I WE AMM MMM MMMM 3 I LCD901 CAW512 1 LCD 1 4Duty 1 3Bias 1 IG KEH 1900R 1930R rm ET
34. 17 YOLV 10942 AS 881 5883 191 52 1980 XL 188 uL 3188 15 KEH 1900R 1930R 3 3 FM AM TUNER UNIT TUNE 99A WV vi 341 9 OJAS 02 TS WV et AL AL WY 8 99A H 201 19018 QN5 34 LNY Wasz LINY WY 3 p up E Lg 194AV A003 9 Lg D 818 4 QLvLAM gt S 41 yg 2S0N4 NA 1110315 gt CN WA AL 5 ag S QN900A NI NAT I Ti 4080252 hy Miss 00 089 33 E LAM Safia SUR z 40819 6529 902 45 Ed TRES 19 ANY NI20V z T 5 2 R an zx Di 5 es 2504 99A LL E pco Ts T ieu t XB ieu 1 t T 4 i t Tot ai 189 SE SANS LNOKIWOL mm ae lay Ly 189 4 184 15 Dj l
35. 81 01 129 LL cO n i prev LIXIN LNOXIN E tl px 0002 82 ara oe 4019 02 FQ lt al Im 1H 194 LXIN Lig T 5 wu 55 9222 i deer LXIN share lt Siza OND du 559 She 4 05 541 1102 ES i 5 120v D d WUT vitu 5 s mae GAUNI D S 299 1297 T i wool S upsal 1 5 199 gogy n 1 T 1 t SD rd 5 salty 29 X E m 4 d 1123 5 5 oe 2 Se 104 E 1 T 1 EN i b 7 pem x5 85 119 Lozo eui zizo z e 4 zz 9008 oor Zaza ao LE a ss uL M 8 027 a 94 OLY T T 1 1 i z 18 6029 T L 1L am on x T Looe 029 7 2 WENE 88 ya ms Las WZ taza a 1 4 1 s I E gz 5 s m I lg s u 9110 5 E S a pibe se za 2 n T 4 5 Qa 3 ss 5 as 1L 2 ES 4 4 4 dal 2029 3 at 29 8 5 5 X 4 2 uw lt z 06g SU 98 5 S 5 Uv T wer 82 2 Alt we gt Ni WLO2 dSd
36. 95 OL 930N JO Spuooos 7 K Snonunuoo Suung enuen spuooss 0 Surun 7996 559 JO spuooos 0 das days Suwung uojnq 55914 um Jo 1519 Surgueqo Aq 8 109195 no 519 s 4 siu p OSLB m nri LILLILI Surpoooud oq 109491 NO AV YAMS OL AV YMS 4 4 suore1odo Surunj eurrou JAO poyoums Jv pue NO p uoltAs oq ueo 5 sr 10 AIYSIY IIAP 90 BUNT ATAN lt IH Jy nti SLB puooos 1 ploy 943 3129196 poioo os 51 uoneg s 0912918 UAM SIFY I0JE2TDUI T uo sie dde Kouonbojj oureu oorA1os 9 ou p 77 IMOS 55014 yor CS J UZI N HAE H Kc 2 J 1 II N I Lg rt QUINOA IY 240 10 95151 p PUNY IPS jo uonejadg 21526 uoyviodo 19111 KEH 1900R 1930R sip Surureuro1 ade 9195589 ou oq ue uonoung oder oup 9JON 71
37. CAPACITORS R 32 RS1 16S822J R 33 RS1 16S822J C 901 CEAL100M16 R 34 51 165331 904 CKSOYB104K16 R 35 51 165331 905 50 102 50 R 51 RS1 16S271J C 906 CCSCH101J50 R 52 RS1 16S560J Unit Number CWE1466 R 55 RS1 16S102J Unit Name FM AM Tuner R 56 RS1 16S823J R 61 RS1 16S392J MISCELLANEOUS R 62 RS1 16S393J IC 1 IC PA4023B R 101 RS1 16S272J IC 2 IC PA4024A R 102 RS1 16S682J 1 Transistor 25 2412 103 RS1 16S333J 2 Transistor DTC124EU R 104 RS1 16S334J 3 FET 3SK263 R 105 RS1 16S683J Q 31 Transistor 25 2412 107 RS1 16S222J 154 Transistor DTC124EU R 151 RS1 16S222J 165 Transistor 25 2412 152 RS1 16S393J Q 201 FET 2SK932 R 154 RS1 16S104J Q 202 Transistor 2SC2412K R 155 RS1 16S273J Q 203 Transistor DTC124EU R 156 RS1 16S243J D 4 Diode 1SV250 R 157 RS1 16S203J D 5 Diode KV1410 F1 R 160 RS1 16S222J D 7 Diode KV1410 F1 R 161 RS1 16S563J D 8 Diode KV1410 F1 R 162 RS1 16S105J D 201 Diode MA157 R 163 RS1 16S222J D 202 Diode MA157 R 202 RS1 16S223J D 231 Diode SVC253 R 203 RS1 16S225J L 2 Coil CTC1133 R 204 RS1 16S103J L 3 Inductor LCTB2R2K2125 R 206 RS1 16S220J L 4 Coil CTC1133 R 207 51 165101 L 5 Coil CTC1132 R 208 RS1 16S102J L 6 Inductor LCTBR15K1608 R 209 RS1 16S471J L 51 Ferri Inductor LAU150K R 214 RS1 16S822J L 201 Ferri Inductor LAU4R7K R 215 RS1 16S822J L 202 Ferri Inductor LAU330K R 217 RS1 16S102J L 203 Inductor CTF1287 R 231 RS1 16S272J L 208 Inductor LAU121K R 232 RS1 16S473J L
38. J 810 Transistor 2SB1242 R 302 RS1 10S272J R 305 RS1 10SOROJ 811 Transistor DTC143TK R 306 RD1 4PU222J D 201 Diode 155270 307 RS1 8S222J D 302 Diode 155270 D 601 Diode 155270 R 308 RS1 8S222J D 602 Diode HZS7L A1 R 309 RS1 10S102J R 310 RS1 10SOROJ D 603 Diode 155270 R 311 RS1 8S272J D 604 Diode 155270 312 RD1 4PU222J D 605 Diode 155270 D 606 Diode 155270 314 RS1 8S392J D 607 Diode 155270 315 RS1 10S392J R 316 RS1 10S152J D 608 Diode 155270 R 317 RS1 10S103J D 609 Diode 155270 318 RS1 10S0R0J D 610 Diode 155270 D 611 Diode 155270 319 RS1 10S472J D 612 Diode HZS9L A2 R 320 RS1 10S682J R 321 RS1 10S222J R 322 RS1 10S472J R 323 RS1 10S682J 26 KEH 1900R 1930R Circuit Symbol and No Part Name Part No Circuit Symbol and No Part Name Part No R 324 RD1 4PU102J R 701 RD1 4PU102J R 326 RD1 4PU0R0J R 702 RD1 4PU102J R 328 RS1 10S561J R 703 RS1 8S102J R 332 RS1 10S103J R 704 RD1 4PU 102J R 333 51 85393 R 1705 RS1 10S102J R 334 RD1 4PU562J R 706 RS1 10S0R0J R 335 RD1 4PU472J R 707 RS1 10S333J R 336 RD1 4PU473J R 708 RS1 10S102J R 337 RS1 10S473J R 709 RS1 10S562J R 338 RD1 4PU104J R 710 RS1 10S222J R 339 RS1 10S473J R 711 RS1 10S222J R 340 RS1 10S473J R 712 RS1 10S562J R 341 51 105681 713 RS1 10S684J R 342 51 105681 R 714 51 85103 R 343 RD1 4PU681J R 715 RS1 10S224J R 344 RD1 4PU681J R 716 RS1 10S224J R 345 RD1 4PU222J R 717 RS1 10S222J R 346 RS1 8S472J R 718 RS
39. Pioneer Manual KEH 1900R X1M EW ORDER NO CRT2267 HIGH POWER CASSETTE PLAYER WITH RDS TUNER KEH 19OOR ma KE H 193OR NOTE See the separate manual CX 644 CRT1800 for the cassette mechanism description The cassette mechanism assy employed in this model is one of 2M series CONTENTS 1 SAFETY INFORMATION S uuu tnu 2 7 GENERAL 33 2 EXPLODED VIEWS AND PARTS LIST 2 33 3 BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 9 tee Senis 33 4 PCB CONNECTION 18 7 1 2 DISPLAY eicere ene 36 5 ELECTRICAL PARTS LIST tene 26 7 2 DISASSEMDBLY tenens 37 6 ADJUSTMENT trist heiter 31 8 OPERATIONS AND SPECIFICATIONS 38 PIONEER ELECTRONIC CORPORATION 4 1 Meguro 1 Chome Meguro ku Tokyo 153 8654 Japan PIONEER ELECTRONICS SERVICE INC 1760 Long Beach CA 90801 1760 U S A PIONEER ELECTRONIC EUROPE N V Haven 1087 Keetberglaan 1 9120 Melsele Belgium PIONEER ELECTRONICS ASIACENTRE PTE LTD 253 Alexandra Road 04 01 Singapore 159936 PIONEER ELECTRONIC CORPORATION 1999 UNE KEH 1900R 1930R 1 SAFETY INFORMATION CAUTION This service manual is intended for qualified service technicians it is not meant for the casual do it yourselfer Qualified technicians have the ne
40. cessary test equipment and tools and have been trained to properly and safely repair complex products such as those covered by this manual Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty If you are not qualified to perform the repair of this product properly and safely you should not risk trying to do so and refer the repair to a qualified service technician 2 EXPLODED VIEWS AND PARTS LIST 2 1 PACKING KEH 1900R 1930R NOTE Parts marked by are generally unavailable because they are not in our Master Spare Parts List Screws adjacent to V mark on the product are used for disassembly PACKING SECTION PARTS LIST Part No Mark No Description KEH 1900R X1M EW KEH 1930R X1M EW 1 Cord Assy CDE5807 CDE5807 2 Accessory Assy CEA1917 CEA1917 3 Handle CNC5395 CNC5395 4 Bush CNV3930 CNV3930 5 Screw CBA1304 CBA1304 6 Polyethylene Bag E36 615 E36 615 7 Carton CHG3600 CHG3601 8 Contain Box CHL3600 CHL3601 9 Protector CHP1622 CHP1622 10 Protector CHP1623 CHP1623 11 Polyethylene Bag CEG 162 CEG 162 12 Case Assy CXB3520 CXB3520 13 Owner s Manual CRD2806 CRD2806 14 Owner s Manual CRD2807 CRD2807 15 Installation Manual CRD2809 CRD2809 16 Passport CRY1013 CRY1013 17 Warranty Card CRY1087 CRY1087 Owner s Manual Installation Manual Model Part No Language KEH 1900R X1M EW CRD2806 English Spanish Dutch KEH 1930R X1M
41. i Id n ES EN TO CA O 1 1 Hp i ja Creu ET el k 0705 vi 8 3 4b 4 013 bis E FA 70202021 w 1020 60121 FSIHA 121 21 v1 Tel LINN YANNL 4 vSTO 5910 TO 121 020 1260 TED JI 22 4 KEH 1900R 1930R SIDE B LINN YANNL amp s sis lt 0166 9065 206 y meee Gras ce ej 4 K H 1900R 1930R 2 S4 EJECT SW FWD REV PB HEAD 53 FWD REV SW ESO Z KEH 1900R 1930R 5 ELECTRICAL PARTS LIST NOTE Parts whose parts numbers are omitted are subject to being not supplied The part numbers shown below indicate chip components Chip Resistor RS1 OSOOOJ RS1 DOSOOOJ Circuit Symbol and Name Part No Circuit Symbol and Name Part No Unit Number CWM6350 D 613 Diode HZS7L C3 Unit Name Tuner Amp Unit D 614 Diode HZS7L A1 D 615 Diode 155270 MISCELLANEOUS D 616 Diode 188270 D 701 Diode 155270 201 LA3161P IC 301 IC PM2007A D 801 Diode 1SR139 400 IC 401 IC SN761029DL D 802 Diode 1SR139 400 IC 501 IC TDA7384 D 803 Diode 1SR139 400 IC 601 IC PE5016A D 804 Diode MA8
42. psz 3dV 1 13 El re 052 218 Sau i f iol s e 5 2998 34 1 og 4 EE 12 L 7 L a Tx Tata E 3 4 AE 1979 Lef s3 212 lele 51 3 dis 27 TL 4a N E amp l 545 EG sle 5 Em SS SESS 5 m 83MOd l 11 51 045 NNNNMN AO2 O O2222222 go BuN2GuouQuocub 5uMN s 10620191 5 10921 TOA SE N MON ON NM UL UL UI UE UI UL UL UL UI AAAA TIT UougoGgoNubiuoudou RUN 5 EE EE T T PT ale Lis asp E 1099 See Nd gs al See She N 7 I r I uc i LINN KEH 1900R 1930R 14
43. sconnect the connector and then remove the Cassette Mechanism Assy Remove the Panel Unit Fig 1 Disengage the stopper at two locations indicated by arrow Remove the Panel Unit tt Panel Unit Fig 1 Remove the Tuner Amp Unit Fig 2 Remove the two screws Remove the three screws Remove the screw Unbend the tabs at four locations indicated by arrow until straight Remove the Tuner Amp Unit 555 Tuner Amp Unit Fig 2 37 K H 1900R 1930R 8 OPERATIONS AND SPECIFICATIONS 1uBu 1 8 1 ueoJD pelg 11011 poe q Ae1c 3 10044 10044 joejq uaa1c 1 49 141014 11891 spe 10128UUOO 915 aq eseo ay SI SIY Ojul 10128uu09 OSI 2 uuosS U 930N edes y uauw suonoeuuoo JO SIU es y ez uo asnyeL um Jeowzz 1 perjddns sAemje OL Apoq dn yoeg 10 A40sseooy 3HO NO OQ A ZL yams Aq 3117992 OL uonisod yoyms uoniuBi Jo 559 1868 2 10 dn yoeg
44. uin TAPE SIGNAL MW LW 30 26dBs ma s c TUNER SIGNAL LL 51 TAPE TUNER SIGNAL 4 88 5 al SI 8 88 ER M Baum 5 E 5444 14 lin 15 0201 m 16 CLOCK 2 8V st E 5 PM2007A 5 Ie 18 mi av xo dd 19mm av PLL IC E gx 20 1 P I E uwrw 3 228 fi BE Fey 34 8 5 sl 5 Tp sly IN Jos HE WT xm S Sale S NM u Bn rm I E xi g g MBPS s 5 E aye TET zm can m wn TERI Kt m 1 epe 2 1 E T Ean P EK cour Bs EEEN RDS mt or E ak BAA BS pall z LH 81 au GND px M NT ESL 4 oer gi r Nose hart i 101 P B dd Z Portae eli eret f 23 gt M all THE SL 1 lt Dg 333 StF csse 10 4 aaa rovs zl tne gt 2 412 weno 7 x 415 we is max we 8 kua I L Treat E 4 ong B T 1 z aJ 4 I E 3 3 1 B E MECHANISM MUTE og R618 18K R522 d 4 A j AE 2sC17485 EQ AMP E z 1C201
45. z m 9885 25 1848 m i 2 im M I CN601 m Eum LI REGULATO asas Gate ii D rm We Se MIN o DMINH one e ase Tee 1 AUDIO z 233 EGULATOR 8 mm BES o n Bes 1 8 5V 5 717264 8 B REMOTE 1 60 mos 5 Ey U PESOIGA gk LES T ogy amp Ex an gt 1 MUTE CONTROLLER 8 a 42 i M m ez mm mi RI Eri TK 8 sm E E sane A sl 5 s zl i m 3888232285 1 Sas 1 WA LERT 3 SOURCE RIGHT gt ew SN at sak I 8 les secs CH3 cH PTY ic seor 28862 KSTi soe 81 stss Em sm sm E 1 901 PD6293A secs 82 393 1 1 1 1 ans 59 state I 3 1 30 38010 5 1 D x LCD DRIVER est 87 seat LT L A vss sect 32 eo Eu sns me KST2 ym Be 7 seers 22 EH 288 8 m H 5 KSTS T CELVS KEH IS20R XIMEW P DOWN V CH4 e seis 55 5 015 E r 2 sy E seers 32301 3
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