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Service
Manual
MULTI-CD/DAB CONTROL HIGH POWER CASSETTE PLAYER WITH RDS TUNER
KEH-P7900R
KEH-P7910R
MULTI-CD/DAB CONTROL HIGH POWER CASSETTE PLAYER WITH FM/AM TUNER
KEH-P7950
- This service manual should be used together with the following manual(s):
Model No.
Order No.
CX-1011
CRT2406
NOTE:
- Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.
-
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. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...10
4. PCB CONNECTION DIAGRAM ................................32
5. ELECTRICAL PARTS LIST ........................................44
6. ADJUSTMENT..........................................................62
PIONEER CORPORATION
PIONEER ELECTRONICS SERVICE INC.
PIONEER EUROPE N.V.
Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2000
KEH-P7900R/X1N/EW
Mech. Module Remarks
3L
Cassette Mech. Module:Mech.Description, Disassembly, Adjustment
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
1
X
N/EE
1
X
N/ES
7. GENERAL INFORMATION .......................................63
7.1 DISASSEMBLY ...................................................63
7.2 IC ........................................................................65
7.3 OPERATIONAL FLOW CHART ...........................72
8. OPERATIONS AND SPECIFICATIONS.....................73
ORDER NO.
CRT2458
1
X
N/EW
K-ZZB. FEB. 2000 Printed in Japan
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Table of Contents
Related Manuals for Pioneer KEH-P7900R X1N
Summary of Contents for Pioneer KEH-P7900R X1N
- Page 1 PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER EUROPE N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER CORPORATION 2000 K-ZZB. FEB. 2000 Printed in Japan...
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Page 2: Safety Information
KEH-P7900R,P7910R,P7950 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. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. - Page 3 KEH-P7900R,P7910R,P7950 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-P7900R,P7910R,P7950 - KEH-P7950/X1N/ES - PACKING SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Carton CHG4029 16 Polyethylene Bag CZE3188 2 Cord Assy CDE6231 17 Polyethylene Bag CEG-162 3 Accessory Assy CEA2350 18 Battery CEX1006 4 Spring CBH1650 19 Contain Box...
- Page 5 KEH-P7900R,P7910R,P7950 2.2 EXTERIOR KEH-P7900R/X1N/EW...
- Page 6 KEH-P7900R,P7910R,P7950 KEH-P7910R/X1N/EE KEH-P7950/X1N/ES (1) EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BMZ30P040FZK 41 Holder CNC8696 2 Screw BSZ26P050FMC 42 Insulator See Contrast table(2) 3 Screw BSZ30P050FMC 43 Insulator CNM6249 4 Screw BSZ30P200FMC 44 Insulator CNM6250...
- Page 7 KEH-P7900R,P7910R,P7950 Mark No. Description Part No. Mark No. Description Part No. 81 Spring CBH2310 96 Gear CNV5997 82 Spring CBH2312 97 Pin CNV6027 83 Spring CBH2313 98 Panel PCB Unit CWM6720 84 Spring CBH2393 99 Socket(CN605) CKS3550 85 Spring CBL1492 100 Connector(CN604) CKS4206 86 Holder...
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Page 8: Cassette Mechanism Module
KEH-P7900R,P7910R,P7950 2.3 CASSETTE MECHANISM MODULE... - Page 9 KEH-P7900R,P7910R,P7950 - CASSETTE MECHANISM MODULE SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 46 Pinch Roller ENV1518 1 Screw BSZ20P040FMC 2 Washer CBF1037 47 Pinch Holder Unit EXA1583 3 Washer CBG1003 48 Pinch Roller ENV1518 4 Screw EBA1028 49 Reel Unit...
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Page 10: Block Diagram And Schematic Diagram
KEH-P7900R,P7910R,P7950 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM TUNER AMP UNIT FM/AM TUNER UNIT EW, EE Q151 Q153 FM FRONT END FM/AM 1ST IF 10.7MHz CN401 Q155 Q154 T51 Q51 CF51 CF52 CF53 ANTENNA L-OUT IC 2 PM4008A Q501 34 33 DECODER... - Page 11 KEH-P7900R,P7910R,P7950 Q911 Q913 Q601 CN901 adpw BACK UP AVREF tmute DALMON SYSTEM fm/AM CONTROLLER IC 681 ALARM ALARM DRELAY IC 601 (1/2) TPD1018F PE5100A(EW,EE) Q931 PE5101A(ES) bsens ldet asens NL2DT Q932 TUNPCE2 isens ILLUMI Q681 dled EW, EE SDBW Q683 TUNPCE DRSW DOOR...
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Page 12: Overall Connection Diagram(Guide Page)
KEH-P7900R,P7910R,P7950 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 LIST”. NOTE : MIC PCB Large size SCH diagram IP-BUS:+2.2dBs Guide page Detailed page > 200mA R161 1R6K 2R7K... -
Page 13: Tuner Amp Unit
KEH-P7900R,P7910R,P7950 Symbol indicates a resistor. Decimal points for resistor No differentiation is made between chip resistors and The > mark found on some component parts indicates and capacitor fixed values discrete resistors. are expressed as : the importance of the safety factor of the part. Symbol indicates a capacitor. - Page 14 KEH-P7900R,P7910R,P7950 A-a E...
- Page 15 KEH-P7900R,P7910R,P7950...
- Page 16 KEH-P7900R,P7910R,P7950...
- Page 17 KEH-P7900R,P7910R,P7950...
- Page 18 KEH-P7900R,P7910R,P7950 3.3 FM/AM TUNER UNIT(KEH-P7900R/X1N/EW) FM/AM TUNER UNIT Mark Band Input Level None – – 0dBf 65dBf F125 125dBf 0dBµ 74dBµ A125 125dBµ...
- Page 19 KEH-P7900R,P7910R,P7950...
- Page 20 KEH-P7900R,P7910R,P7950 3.4 FM/AM TUNER UNIT(KEH-P7910R/X1N/EE) FM/AM TUNER UNIT R901 4R7K Mark Band Input Level None – – 0dBf 65dBf F125 125dBf 0dBµ 74dBµ A125 125dBµ...
- Page 21 KEH-P7900R,P7910R,P7950 R910 0R0...
- Page 22 KEH-P7900R,P7910R,P7950 3.5 FM/AM TUNER UNIT(KEH-P7950/X1N/ES) FM/AM TUNER UNIT Mark Band Input Level None – – 0dBf 65dBf F125 125dBf 0dBµ 74dBµ A125 125dBµ...
- Page 23 KEH-P7900R,P7910R,P7950...
- Page 24 KEH-P7900R,P7910R,P7950 3.6 KEYBOARD UNIT(KEH-P7900R/X1N/EW, KEH-P7910R/X1N/EE) CN604 DISP SOURCE AUDIO TX(RT) BAND FUNC OPEN...
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Page 25: Keyboard Unit
KEH-P7900R,P7910R,P7950 KEYBOARD UNIT DATA ROM KEY / OEL CONTROLLER 22k(B) OEL UNIT MXR8004... - Page 26 KEH-P7900R,P7910R,P7950 3.7 KEYBOARD UNIT(KEH-P7950/X1N/ES) CN604 DISP LOUD SOURCE CLOCK AUDIO BAND FUNC OPEN...