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Pioneer KEH-3830R Service Manual

High power cassette player with rds tuner
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Service
Manual
HIGH POWER CASSETTE PLAYER WITH RDS TUNER
KEH-3830R
KEH-3800R
KEH-3820R
NOTE:
- See the separate manual CX-631(CRT1640) for the cassette mechanism description.
- The cassette mechanism assy employed in this model is one of 2L series.
CONTENTS
1. SAFETY INFORMATION............................................2
2. EXPLODED VIEWS AND PARTS LIST ......................2
3. SCHEMATIC DIAGRAM.............................................8
4. PCB CONNECTION DIAGRAM................................22
5. ELECTRICAL PARTS LIST........................................32
6. ADJUSTMENT .........................................................39
PIONEER ELECTRONIC CORPORATION
PIONEER ELECTRONICS SERVICE INC.
PIONEER ELECTRONIC [EUROPE] N.V.
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 501 Orchard Road, #10-00, Wheelock Place, Singapore 238880
C PIONEER ELECTRONIC CORPORATION 1998
KEH-3830R/X1M/EW
X1M/EW
X1M/GR
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
7. GENERAL INFORMATION.......................................41
7.1 PARTS ................................................................41
7.1.1 IC ...............................................................41
7.1.2 DISPLAY ...................................................45
7.2 DISASSEMBLY ...................................................46
7.3 BLOCK DIAGRAM ..............................................47
8. OPERATIONS AND SPECIFICATIONS ....................48
K-ZZU. OCT. 1998 Printed in Japan
ORDER NO.
CRT2257
X1M/EW

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  • Page 1: Table Of Contents

    P.O.Box 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. 501 Orchard Road, #10-00, Wheelock Place, Singapore 238880 C PIONEER ELECTRONIC CORPORATION 1998 K-ZZU. OCT. 1998 Printed in Japan...

  • Page 2: Safety Information

    KEH-3830R,3800R,3820R 1. SAFETY INFORMATION This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual.
  • Page 3 CXB3520 8 Carton See Contrast table(2) 9 Contain Box See Contrast table(2) 10 Protector CHP2102 (2) CONTRAST TABLE KEH-3830R/X1M/EW, KEH-3800R/X1M/EW and KEH-3820R/X1M/GR are constructed the same except for the following: Part No. Mark No. Description KEH-3830R/X1M/EW KEH-3800R/X1M/EW KEH-3820R/X1M/GR 8 Carton...
  • Page 4 KEH-3830R,3800R,3820R 2.2 EXTERIOR...
  • Page 5 KEH-3830R,3800R,3820R (1) EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BSZ26P050FMC 36 Button See Contrast table(2) 2 Screw BSZ30P050FMC 37 Button See Contrast table(2) 3 Cord Assy CDE5797 38 Button(Eject) CAC5793 4 Fuse(10A)
  • Page 6 KEH-3830R,3800R,3820R (2)CONTRAST TABLE KEH-3830R/X1M/EW , KEH-3800R/X1M/EW and KEH-3820R/X1M/GR have the same construction except for the following: Part No. Mark No. Description KEH-3830R/X1M/EW KEH-3800R/X1M/EW KEH-3820R/X1M/GR 12 Tuner Amp Unit CWM6251 CWM6251 CWM6250 16 FM/AM Tuner Unit CWE1466 CWE1466 CWE1470 27 Chassis Unit...
  • Page 7 KEH-3830R,3800R,3820R - CASSETTE MECHANISM MODULE SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BSZ20P040FMC 46 Pinch Holder ENV1486 2 Washer CBF1037 47 Reel Unit EXA1543 3 Washer CBF1038 48 Head Base Unit EXA1457...

  • Page 8: Schematic Diagram

    KEH-3830R,3800R,3820R 3. SCHEMATIC DIAGRAM 3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. Large size SCH diagram FM/AM TUNER UNIT Guide page Detailed page FM: -15.5dBs...
  • Page 9 KEH-3830R,3800R,3820R TUNER AMP UNIT ELECTRONIC VOLUME FM: +35.6dBs AM: +25.1dBs TAPE: +22.0dB POWER AMP FM: +9.6dBs AM: -0.9dBs TAPE: -4dBs RESET CEK1136 8V REGULATER EWmodel SYSTEM CONTROLLER PD4974A B REMOTE UNIT CN1901...
  • Page 10 KEH-3830R,3800R,3820R...
  • Page 11 KEH-3830R,3800R,3820R...
  • Page 12 KEH-3830R,3800R,3820R...
  • Page 13 KEH-3830R,3800R,3820R...
  • Page 14 KEH-3830R,3800R,3820R 3.2 FM/AM TUNER UNIT - KEH-3830R/X1M/EW,3800R/X1M/EW FM/AM TUNER UN...
  • Page 15 KEH-3830R,3800R,3820R ER UNIT...
  • Page 16 KEH-3830R,3800R,3820R - KEH-3820R/X1M/GR FM/AM TUNER UN...
  • Page 17 KEH-3830R,3800R,3820R ER UNIT...
  • Page 18 KEH-3830R,3800R,3820R 3.3 KEYBOARD UNIT CAW1542...

  • Page 19: Keyboard Unit

    KEH-3830R,3800R,3820R KEYBOARD UNIT EDIT IL1901-1905:CEL1610(3830R,3820R) LOCAL/BSM CEL1605(3800R) 40mA 14V...
  • Page 20 KEH-3830R,3800R,3820R 3.4 CASSETTE MECHANISM MODULE DECK UNIT R302 R304 C256 R258 C253 330P R283 0R0 R256 220 R273 C254 330P R284 0R0 R272 R271 R290 R282 0R0 R274 Fwd-R CXA2559Q C273 C252 330P R287 22/16 C403 R068 Fwd-L R281 0R0...
  • Page 21 KEH-3830R,3800R,3820R PCB UNIT MOTOR UNIT (MAIN MOTOR) EXA1490 LOAD R373 70µs ESG1004 ESG1004 MODE SENSE EGN1 EGN1005 MOTOR UNIT (SUB MOTOR) EXA1485 EGN2 EGN3 R374 EGN1006 EGN1006 FWD END REV END SENSE SENSE REEL PCB C356 SWITCHES: PCB UNIT S1:LOAD SWITCH..EJECT-PLAY C355 S2:70µs SWITCH....ON-OFF...

  • Page 22: Pcb Connection Diagram

    KEH-3830R,3800R,3820R 4. PCB CONNECTION DIAGRAM CORD ASSY 4.1 TUNER AMP UNIT TUNER AMP UNIT NOTE FOR PCB DIAGRAMS 1. The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram.
  • Page 23 KEH-3830R,3800R,3820R SIDE A CN251...
  • Page 24 KEH-3830R,3800R,3820R TUNER AMP UNIT...
  • Page 25 KEH-3830R,3800R,3820R SIDE B...
  • Page 26 KEH-3830R,3800R,3820R 4.2 FM/AM TUNER UNIT SIDE A...
  • Page 27 KEH-3830R,3800R,3820R SIDE B...
  • Page 28 KEH-3830R,3800R,3820R 4.3 KEYBOARD UNIT SIDE A...
  • Page 29 KEH-3830R,3800R,3820R SIDE B...
  • Page 30 KEH-3830R,3800R,3820R 4.4 CASSETTE MECHANISM MODULE SIDE A DECK UNIT CN602 SIDE B DECK UNIT HEAD ASSY...
  • Page 31 KEH-3830R,3800R,3820R PCB UNIT SIDE A LOAD SW EGN1 MODE SENSE 70µ SW PCB UNIT SIDE B CN253 1 2 3 4 5 6 REEL PCB Fig. 20...

  • Page 32: Electrical Parts List

    KEH-3830R,3800R,3820R 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/_S___J,RS1/__S___J Chip Capacitor (except for CQS..) CKS.., CCS.., CSZS..=====Circuit Symbol and No.===Part Name Part No.
  • Page 33 KEH-3830R,3800R,3820R =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/10S104J RS1/10S472J RS1/10S123J RS1/10S103J RS1/8S104J RD1/4PU222J RS1/10S0R0J RS1/10S223J RS1/10S0R0J RD1/4PU222J RS1/10S0R0J RS1/10S473J RS1/10S105J RS1/10S472J (EWmodel) RS1/10S102J RS1/10S472J RS1/10S222J RS1/10S472J...
  • Page 34 CKSQYB104K50 CKSQYB103K50 3300µF/16V CCH1169 330µF/10V CCH1181 CKSQYB153K50 CKSQYB103K50 CKSQYB153K50 100µF/16V CCH1179 CKSQYB104K50 CKSQYB103K50 CKSQYB104K50 CKSQYB472K50 CKSQYB223K25 Unit Number : CWM6262(KEH-3830R/X1M/EW) CKSQYB223K25 CWM6465(KEH-3800R/X1M/EW) CKSQYB223K25 CWM6261(KEH-3820R/X1M/GR) CKSQYB223K50 Unit Name : Keyboard Unit CCSQSL101J50 MISCELLANEOUS CKSQYB104K50 CKSQYB223K50 IC 1901 PD6278A (EWmodel) CKSQYB103K50 1901...
  • Page 35 KEH-3830R,3800R,3820R =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CKSRYB103K25 RESISTORS CKSQYB104K16 CEJA220M16 1901 RS1/10S222J CKSYB104K50 1902 RS1/10S222J CKSYB104K50 1903 RS1/10S472J 1908 RS1/10S473J CCSQCH101K50 1909 RS1/10S473J CKSYB224K25 CKSQYB392K50...
  • Page 36 KEH-3830R,3800R,3820R =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Coil CTC1136 RS1/16S104J Trimmer CCL1046 RS1/16S332J Ceramic Filter CTF1442 RS1/16S202J Ceramic Filter CTF1442 RS1/16S123J Ceramic Filter CTF1442 RS1/16S103J Ceramic Filter...
  • Page 37 KEH-3830R,3800R,3820R =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CKSQYB104K16 RS1/16S332J CCSRCH560J50 RS1/16S473J CKSQYB104K16 RS1/16S223J CCSRCH101J50 RS1/16S124J CEJA470M6R3 RS1/16S563J CKSRYB103K25 RS1/16S271J CCSRCH101J50 RS1/16S104J CEJA1R5M50 RS1/16S332J CCSRCH471J50 RS1/16S332J CKSRYB103K25...
  • Page 38 KEH-3830R,3800R,3820R =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- CKSRYB223K25 CKSRYB103K25 CCSRCH470J50 CKSQYB223K25 CKSQYB104K16 CKSRYB472K50 CEJA330M10 CKSRYB103K25 CCSRCH270J50 CKSRYB103K25 CEJAR15M50 CEJANP100M10 CKSRYB182K50 CKSRYB682K25 CEJA2R2M50 CKSRYB103K25 CCSRCH151J50 CKSRYB103K25 CKSRYB472K50 CKSQYB104K16 CEJA3R3M50 CKSQYB104K16 CEJA3R3M50 CKSYB474K16 CEJA220M6R3 CKSQYB104K16 CKSQYB104K16 CEJA3R3M50 CKSRYB102K50...

  • Page 39: Adjustment

    KEH-3830R,3800R,3820R 6. ADJUSTMENT - Connection Diagram BACK UP +14.4V DC Regulated Power Supply Lch + Ω Lch - mV Meter (1) Oscilloscope Rch + Ω Rch - Dummy Antenna Antenna Plug Ω (37.5 Ω Stereo FM SSG Modulator Ω Ω...
  • Page 40 KEH-3830R,3800R,3820R FM ADJUSTMENT Modulation M:MONO MOD., 400Hz 30%(22.5kHz Dev.) or 400Hz 100%(75kHz Dev.) S:STEREO MOD., 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.

  • Page 41: General Information

    KEH-3830R,3800R,3820R 7. GENERAL INFORMATION 7.1 PARTS 7.1.1 IC CXA2559Q...
  • Page 42 KEH-3830R,3800R,3820R - Pin Functions(PD4974A) Pin No. Pin Name Format Function and Operation ASENBO Slave power supply control output RDS time constant control output ADPW A/D converter power AVSS swvdd Grille power supply control output FM stereo input AVREF1 D/A converter standard voltage...
  • Page 43 KEH-3830R,3800R,3820R Pin No. Pin Name Format Function and Operation RDS clock input dsens Grille detach sense input TELIN Cellular mute input asens ACC power sense input bsens Back up power sense input Not used Oscillator output Oscillator input Connect to GND...
  • Page 44 KEH-3830R,3800R,3820R - Pin Functions (PD6278A) Pin No. Pin Name Function and Operation SEG4-0 LCD segment output COM3-0 LCD common output LCD drive power supply 11-14 KS4-1 Key strobe output 15,16 KD1,2 Key data input (analogue input) Remote control reception System micro computer UART communication data input...

  • Page 45: Display

    KEH-3830R,3800R,3820R 7.1.2 DISPLAY - CAW1542...

  • Page 46: Disassembly

    KEH-3830R,3800R,3820R 7.2 DISASSEMBLY Removing the Case(not shown) 1. Remove the two screws. 2. Remove the Case. Removing the Cassette Mechanism Module (not shown) 1. Remove the four screws. 2.Disconnect the connector, and then removing the Cassette Mechanism Module. Removing the Panel Unit(Fig.1) Remove the two screws.

  • Page 47: Block Diagram

    KEH-3830R,3800R,3820R 7.3 BLOCK DIAGRAM - KEH-3830R/X1M/EW...

  • Page 48: Operations And Specifications

    KEH-3830R,3800R,3820R 8. OPERATIONS AND SPECIFICATIONS 9. Yellow/black If you use a cellular telephone, connect it via the Audio Mute lead on the cellular telephone. If not, keep the Audio Mute lead free of any connections. 1. This Product 2. Antenna jack 10.
  • Page 49 KEH-3830R,3800R,3820R 8.1. OPERATIONS...
  • Page 50 KEH-3830R,3800R,3820R...

  • Page 51: Specifications

    KEH-3830R,3800R,3820R 8.2. SPECIFICATIONS General FM tuner Power source ..14.4 V DC (10.8 – 15.1 V allowable) Frequency range ........87.5 – 108 MHz Grounding system ........Negative type Usable sensitivity ....11 dBf (1.0 µV/75 Ω, mono, S/N: 30 dB) Max.

This manual is also suitable for:

Keh-3830r/x1m/ewKeh-3800r/x1m/ewKeh-3820r/x1m/grKeh-3800rKeh-3820r

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