Pioneer KEH-P4830R Service Manual

Multi-cd control high power cassette player with rds tuner

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Service

Manual

MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH RDS TUNER

KEH-P4830R

KEH-P4800R

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.

- This service manual does not describe the CD test mode.

For the operations in the CD test mode, refer to the CD player's Service Manual.

CONTENTS

1. SAFETY INFORMATION............................................2

2. EXPLODED VIEWS AND PARTS LIST ......................2

3. SCHEMATIC DIAGRAM.............................................8

4. PCB CONNECTION DIAGRAM................................20

5. ELECTRICAL PARTS LIST........................................30

6. ADJUSTMENT .........................................................36

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-P4830R/X1M/EW

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

X1M/EW

7. GENERAL INFORMATION.......................................38

7.1 PARTS ................................................................38

7.1.1 IC ...............................................................38

7.1.2 DISPLAY ...................................................42

7.2 DISASSEMBLY ...................................................43

7.3 BLOCK DIAGRAM ..............................................44

8. OPERATIONS AND SPECIFICATIONS ....................45

K-ZZU. OCT. 1998 Printed in Japan

ORDER NO.

CRT2258

X1M/EW

Table of Contents

Summary of Contents for Pioneer KEH-P4830R

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-P4830R,P4800R 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 KEH-P4830R,P4800R NOTE: - Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List. ∇ mark on the product are used for disassembly. - Screws adjacent to - PACKING SECTION PARTS LIST Mark No. Description Part No.
Page 4 KEH-P4830R,P4800R 2.2 EXTERIOR...
Page 5 KEH-P4830R,P4800R (1) EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BSZ26P050FMC 41 Button(Eject) CAC5793 2 Screw BSZ30P050FMC 42 Button(Display) CAC5788 3 Cord Assy CDE5796 43 Button See Contrast table(2) 4 Fuse(10A) CEK1136...
Page 6: Cassette Mechanism Module
KEH-P4830R,P4800R (2)CONTRAST TABLE KEH-P4830R/X1M/EW and KEH-P4800R/X1M/EW have the same construction except for the following: Part No. Mark No. Description KEH-P4830R/X1M/EW KEH-P4800R/X1M/EW 12 Tuner Amp Unit CWM6246 CWM6245 30 Chassis Unit CXB3015 CXB3014 33 Detach Grille Assy CXB3320 CXB3319 36 Button(Detach)
Page 7 KEH-P4830R,P4800R - 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-P4830R,P4800R 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 FM: -15.5dBs AM: -26dBs...
Page 9 KEH-P4830R,P4800R TUNER AMP UNIT ELECTRONIC VOLUME TAPE: -4.2dBs FM: +35.6dBs AM: +25.1dBs TAPE: +22.0dBs CD: +36.3dBs POWER AMP FM: +9.6dBs AM: -0.9dBs TAPE: -4dBs CD: +10.3dBs IP-BUS DRIVER RESET CEK1136 8V REGULATER SYSTEM CONTROLLER PD4972A VDD SWITCH CD: +2.2dBs IP-BUS...
Page 10 KEH-P4830R,P4800R...
Page 11 KEH-P4830R,P4800R...
Page 12 KEH-P4830R,P4800R...
Page 13 KEH-P4830R,P4800R...
Page 14 KEH-P4830R,P4800R 3.2 FM/AM TUNER UNIT FM/AM TUNER UN...
Page 15 KEH-P4830R,P4800R ER UNIT...
Page 16: Keyboard Unit
KEH-P4830R,P4800R 3.3 KEYBOARD UNIT CAW1542:P4830R/X1M/EW CAW1506:P4800R/X1M/EW...
Page 17 KEH-P4830R,P4800R KEYBOARD UNIT EDIT IL1901-1905:CEL1610(P4830R/X1M/EW) CEL1605(P4800R/X1M/EW) LOCAL/BSM 40mA 14V...
Page 18 KEH-P4830R,P4800R 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 19 KEH-P4830R,P4800R 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 20: Pcb Connection Diagram
KEH-P4830R,P4800R 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 21 KEH-P4830R,P4800R SIDE A CN251...
Page 22 KEH-P4830R,P4800R TUNER AMP UNIT...
Page 23 KEH-P4830R,P4800R SIDE B...
Page 24 KEH-P4830R,P4800R 4.2 FM/AM TUNER UNIT SIDE A...
Page 25 KEH-P4830R,P4800R SIDE B...
Page 26 KEH-P4830R,P4800R 4.3 KEYBOARD UNIT SIDE A...
Page 27 KEH-P4830R,P4800R SIDE B...
Page 28 KEH-P4830R,P4800R 4.4 CASSETTE MECHANISM MODULE DECK UNIT SIDE A CN602 SIDE B DECK UNIT HEAD ASSY...
Page 29 KEH-P4830R,P4800R 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 30: Electrical Parts List
CKS.., CCS.., CSZS..=====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Unit Number : CWM6246(KEH-P4830R/X1M/EW) Diode 1SS270 : CWM6245(KEH-P4800R/X1M/EW) Diode 1SS270 Unit Name : Tuner Amp Unit Diode 1SS270 Diode...
Page 31 KEH-P4830R,P4800R =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RD1/4PU102J RD1/4PU222J RD1/4PU102J RS1/10S222J RS1/10S0R0J RS1/10S222J RS1/10S0R0J RD1/4PU222J RS1/10S0R0J RS1/10S222J RS1/10S272J RD1/4PU222J RS1/10S272J RD1/4PU222J RS1/10S0R0J RD1/4PU222J RS1/10S510J RD1/4PU222J RS1/10S102J...
Page 32 CKSQYB104K50 CKSQYB103K50 330µF/10V CCH1181 CKSQYB104K50 CKSQYB103K50 CKSQYB223K25 CKSQYB223K25 100µF/16V CCH1179 CKSQYB223K25 CKSQYB103K50 CKSQYB223K50 CKSQYB472K50 CCSQSL101J50 Unit Number : CWM6257(KEH-P4830R/X1M/EW) CKSQYB104K50 : CWM6110(KEH-P4800R/X1M/EW) CKSQYB223K50 Unit Name : Keyboard Unit CKSQYB103K50 CKSYB223K50 MISCELLANEOUS IC 1901 PD6278A IC 1902 SBX8035-H 1901 Chip Diode...
Page 33 KEH-P4830R,P4800R =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- 1901 Ceramic Resonator 4.97MHz CSS1422 1901 Switch CSG1041 RESISTORS 1902 Switch CSG1111 1903 Switch CSG1111 RS1/16S221J 1904 Switch CSG1111...
Page 34 KEH-P4830R,P4800R =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S822J Unit Number : RS1/16S822J Unit Name : Reel PCB RS1/16S331J RS1/16S331J Photo-Interrupter EGN1006 RS1/16S271J Photo-Interrupter EGN1006 RS1/16S560J Unit Number : CWE1466...
Page 35 KEH-P4830R,P4800R =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CKSRYB103K25 CKSQYB473K16 CKSQYB472K50 CCSRCH471J50 CCSRCH5R0C50 CKSQYB104K16 Miscellaneous Parts List CCSRRH201J50 Motor Unit (Main) EXA1490 CKSRYB223K25 Motor Unit (Sub) EXA1485...
Page 36: Adjustment
KEH-P4830R,P4800R 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 37 KEH-P4830R,P4800R 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 38: General Information
KEH-P4830R,P4800R 7. GENERAL INFORMATION 7.1 PARTS 7.1.1 IC CXA2559Q...
Page 39 KEH-P4830R,P4800R - Pin Functions(PD4972A) 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 40 KEH-P4830R,P4800R 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 41 KEH-P4830R,P4800R - 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 42: Display
KEH-P4830R,P4800R 7.1.2 DISPLAY - CAW1542(P4830R),CAW1506(P4800R)
Page 43: Disassembly
KEH-P4830R,P4800R 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 44: Block Diagram
KEH-P4830R,P4800R 7.3 BLOCK DIAGRAM...
Page 45: Operations And Specifications
KEH-P4830R,P4800R 8. OPERATIONS AND SPECIFICATIONS...
Page 46 KEH-P4830R,P4800R 8.1 OPERATIONS...
Page 47 KEH-P4830R,P4800R...
Page 48 KEH-P4830R,P4800R...
Page 49: Specifications
KEH-P4830R,P4800R 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.

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