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Service
Manual
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER
KEH-P2800
KEH-P3850
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.
- 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................................18
5. ELECTRICAL PARTS LIST........................................26
6. ADJUSTMENT .........................................................32
PIONEER ELECTRONIC CORPORATION
PIONEER ELECTRONICS SERVICE INC.
PIONEER ELECTRONIC [EUROPE] N.V.
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER ELECTRONIC CORPORATION 1998
KEH-P2800/X1M/UC
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/ES
7. GENERAL INFORMATION.......................................34
7.1 PARTS ................................................................34
7.1.1 IC ...............................................................34
7.1.2 DISPLAY ...................................................38
7.2 DISASSEMBLY ..................................................39
7.3 BLOCK DIAGRAM .............................................40
8. OPERATIONS AND SPECIFICATIONS ....................41
K-ZZB. DEC. 1998 Printed in Japan
ORDER NO.
CRT2268
X1M/UC
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Table of Contents
Related Manuals for Pioneer KEH-P2800 - Radio / Cassette Player
Summary of Contents for Pioneer KEH-P2800 - Radio / Cassette Player
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Page 1: Table Of Contents
PIONEER ELECTRONICS SERVICE INC. 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. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER ELECTRONIC CORPORATION 1998 K-ZZB. DEC. 1998 Printed in Japan... -
Page 2: Safety Information
KEH-P2800,P3850 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 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-P2800,P3850 NOTE: - Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List. - Screws adjacent to mark on the product are used for disassembly. - PACKING SECTION PARTS LIST Part.No Mark No. Description KEH-P2800/X1M/UC KEH-P3850/X1M/ES 1 Cord Assy...
- Page 4 KEH-P2800,P3850 2.2 EXTERIOR...
- Page 5 KEH-P2800,P3850 (1) EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BSZ26P050FMC 36 Bracket CNC6135 2 Screw BSZ30P100FMC 37 Bracket CNC6791 3 Cord Assy CDE5805 38 Arm CNV4692 4 Case CNB2481 39 Arm CNV4693 5 Panel CNS5214...
- Page 6 KEH-P2800,P3850 2.3 CASSETTE MECHANISM ASSY...
- Page 7 KEH-P2800,P3850 - CASSETTE MECHANISM ASSY SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BSZ23P050FMC 46 Gear ENV1475 2 Washer CBG1003 47 Gear ENV1512 48 Gear ENV1513 3 Connector(CN1) CKS2829 4 Screw(M2x5) EBA1038 49 Gear ENV1502 5 Screw(M2x2.5) EBA1037...
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Page 8: Schematic Diagram
KEH-P2800,P3850 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 FM/AM TUNER UNIT SCH diagram CWE1467(/UC) CWE1486(/ES) Guide page Detailed page 24dBs CASSETTE... - Page 9 KEH-P2800,P3850 TUNER AMP UNIT TAPE:-25dBs TAPE:-4dBs FM:+5dBs AM:-1dBs CD:+10dBs TAPE:22dBs KEYBOARD UNIT...
- Page 10 KEH-P2800,P3850...
- Page 11 KEH-P2800,P3850...
- Page 12 KEH-P2800,P3850...
- Page 13 KEH-P2800,P3850...
- Page 14 KEH-P2800,P3850 3.2 FM/AM TUNER UNIT - CWE1467 (KEH-P2800/X1M/UC) FM/AM TUNER...
- Page 15 KEH-P2800,P3850 NER UNIT...
- Page 16 KEH-P2800,P3850 - CWE1486 (KEH-P3850/X1M/ES) FM/AM TUNER...
- Page 17 KEH-P2800,P3850 NER UNIT...
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Page 18: Pcb Connection Diagram
KEH-P2800,P3850 4. PCB CONNECTION DIAGRAM CORD ASSY 4.1 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 19 KEH-P2800,P3850 SIDE A IP-BUS...
- Page 20 KEH-P2800,P3850 TUNER AMP UNIT...
- Page 21 KEH-P2800,P3850 SIDE B...
- Page 22 KEH-P2800,P3850 4.2 FM/AM TUNER UNIT SIDE A...
- Page 23 KEH-P2800,P3850 SIDE B...
- Page 24 KEH-P2800,P3850 4.3 KEYBOARD UNIT SIDE B SIDE A...
- Page 25 KEH-P2800,P3850 4.4 CASSETTE MECHANISM ASSY CASSETTE PCB EJECT SW LOAD SW MOTOR FWD/REV PB HEAD MUTE SW 5 7 9 FWD/REV SW 8 10 CN604...
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Page 26: Electrical Parts List
KEH-P2800,P3850 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 27 KEH-P2800,P3850 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RD1/4PU0R0J RD1/4PU473J RS1/10S182J RD1/4PU473J RS1/10S103J RS1/10S101J RS1/8S393J RS1/10S101J RD1/4PU562J RS1/10S620J RD1/4PU472J RS1/10S221J RD1/4PU473J RS1/10S221J RD1/4PU104J RS1/10S223J RS1/10S473J RS1/10S223J RS1/10S473J RS1/10S102J RS1/10S681J RS1/10S102J...
- Page 28 KEH-P2800,P3850 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CKSQYB103K50 CKSQYB104K16 CCSQCH101J50 CEJA1R0M50 (KEH-P3850/X1M/ES) CKPUYY103M16 CEJA1R0M50 CCSQCH101J50 CEJA1R0M50 CKSQYB223K50 CEJA1R0M50 CKSQYB473K50 CCSQCH101J50 CEJA220M6R3 CCSQCH101J50 CKSQYB103K50 CKSQYB102K50 CKSQYB103K50 3300µF/16V CCH1018 CKSQYB102K50 470µF/16V...
- Page 29 KEH-P2800,P3850 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Diode RD39JS RS1/16S223J Diode 1SV250 RS1/16S223J Diode KV1410-F1 RS1/16S225J Diode MA157 RS1/16S103J Diode KV1410-F1 RS1/16S220J Diode KV1410-F1 RS1/16S101J Diode MA157 RS1/16S102J Diode...
- Page 30 KEH-P2800,P3850 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CCSRCH151J50 Diode KV1410-F1 CKSRYB103K25 Diode MA157 CKSRYB472K50 Diode MA157 CKSQYB104K16 Diode SVC253 CEJA3R3M50 Coil CTC1133 CKSQYB104K16 Inductor LCTB2R2K2125 CEJA3R3M50 Coil CTC1133 CKSYB474K16...
- Page 31 KEH-P2800,P3850 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S223J CKSRYB103K25 RS1/16S223J CKSRYB472K50 RS1/16S225J CKSQYB104K16 RS1/16S103J CEJA3R3M50 RS1/16S220J CKSQYB104K16 RS1/16S101J CEJA3R3M50 RS1/16S102J CKSYB474K16 RS1/16S471J CEJA220M6R3 RS1/16S822J CKSQYB104K16 RS1/16S822J CKSQYB104K16 RS1/16S102J CEJA3R3M50...
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Page 32: Adjustment
KEH-P2800,P3850 6. ADJUSTMENT - Connection Diagram BACK UP +14.4V D C R e g u l a t e d P o w e r S u p p l y Lch + Lch - mV Meter (1) Oscilloscope Rch + Rch - Dummy Antenna Antenna... - Page 33 KEH-P2800,P3850 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. FM ADJUSTMENT(UC MODEL) FM SSG Displayed...
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Page 34: General Information
KEH-P2800,P3850 7. GENERAL INFORMATION 7.1 PARTS 7.1.1 IC SN761029DL AVcc IN1-L IN1-R IN2-L IN2-R IN3-L IN3-R IN4(+)-L IN4(+)-R IN4(-)-L IN4(-)-R AGND AGND SWout-L SWout-R ZCin-L ZCin-R LOUD-L LOUD-R VRin-L VRin-R TREB-L TREB-R BASS-C1-L BASS-C1-R BASS-R-L BASS-R-R BASS-C2-L BASS-C2-R TONEout-L TONEout-R FADERin-L FADERin-R FRNTout-L... - Page 35 KEH-P2800,P3850 - Pin Functions(PE5015A) Pin No. Pin Name Format Function and Operation Not used ADPW A/D converter power Not used AVREF1 (Connect to VDD) KYDT Key data input DPDT Display data output dsens Grille detach sense input TUNPDI PLL IC data input TUNPDO PLL IC data output TUNPCK...
- Page 36 KEH-P2800,P3850 *PE5015A Format Meaning C MOS IC's marked by* are MOS type. Be careful in handling them because they are very liable to be damaged by electrostatic induction. - Pin Functions (PD6293A) Pin No. Pin Name Function and Operation 1–5 SEG4-0 LCD segment output 4-0 6–8...
- Page 37 KEH-P2800,P3850 PA4023B...
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Page 38: Display
KEH-P2800,P3850 7.1.2 DISPLAY - CAW1513... -
Page 39: Disassembly
KEH-P2800,P3850 7.2 DISASSEMBLY Removing the Case(not shown) 1. Remove the three screws. 2. Remove the Case. Removing the Cassette Mechanism Assy (not shown) 1. Remove the four screws. 2.Disconnect the connector, and then removing the Cassette Mechanism Assy. Removing the Panel Unit(Fig.1) Disengage the stopper at two locations indicated Remove the Panel Unit. -
Page 40: Block Diagram
KEH-P2800,P3850 7.3 EXPLANATION 7.3.1 BLOCK DIAGRAM - KEH-P2800/X1M/UC... -
Page 41: Operations And Specifications
KEH-P2800,P3850 8. OPERATIONS AND SPECIFICATIONS... - Page 42 KEH-P2800,P3850...
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