Pioneer KEH-P7800R Service Manual
  1. Manuals
  2. Brands
  3. Pioneer Manuals
  4. Car Receiver
  5. KEH-P7800R
  6. Service manual

Pioneer KEH-P7800R Service Manual

Multi-cd control high power cassette player with rds tuner
Hide thumbs
Table of Contents

Advertisement

Quick Links

Service
Manual
MULTI-CD CONTROL HIGH POWER CASSETTE PLAYER WITH RDS TUNER
KEH-P7800R
KEH-P6800R
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.
- Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.
CONTENTS
1. SAFETY INFORMATION ...........................................2
2. EXPLODED VIEWS AND PARTS LIST......................2
3. SCHEMATIC DIAGRAM ..........................................14
4. PCB CONNECTION DIAGRAM ...............................26
5. ELECTRICAL PARTS LIST .......................................36
6. ADJUSTMENT ........................................................46
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-P7800R/X1N/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
X1N/EW
7. GENERAL INFORMATION ......................................48
7.1 PARTS.................................................................48
7.1.1 IC ...............................................................48
7.1.2 DISPLAY ...................................................53
7.2 DIAGNOSIS........................................................54
7.2.1 DISASSEMBLY .........................................54
7.2.2 TEST MODE .............................................55
7.3 BLOCK DIAGRAM..............................................58
8. OPERATIONS AND SPECIFICATIONS ...................59
K-ZZS. NOV. 1998 Printed in Japan
ORDER NO.
CRT2305
X1N/EW

Advertisement

Table of Contents
loading

Related Manuals for Pioneer KEH-P7800R

Summary of Contents for Pioneer KEH-P7800R

  • 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-ZZS. NOV. 1998 Printed in Japan...

  • Page 2: Safety Information

    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-P7800R/X1N/EW...
  • Page 3 KEH-P7800R,P6800R 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-P7800R,P6800R - KEH-P6800R/X1N/EW...
  • Page 5 KEH-P7800R,P6800R - PACKING SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 9 ••••• 1 Cord Assy CDE5757 2 Accessory Assy CEA1917 10 Carton CHG3674 3 Screw CBA1304 11 Contain Box CHL3674 4 Handle CNC5395 12 Protector...
  • Page 6 KEH-P7800R,P6800R 2.2 EXTERIOR...
  • Page 7 KEH-P7800R,P6800R (1) EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 46 ••••• 1 Screw BMZ30P040FMC 2 Screw BSZ26P050FMC 47 Heat Sink CNR1505 3 Screw BSZ30P050FMC 48 Insulator CNV5792 4 Cord Assy CDE5757 49 FM/AM Tuner Unit...
  • Page 8 CXB3180 103 Cord See Contrast table(2) 104,105 ••••• See Contrast table(2) Cassette Mechanism Module (2) CONTRAST TABLE KEH-P7800R/X1N/EW and KEH-P6800R/X1N/EW are constructed the same except for the following: Part No. Mark No. Description KEH-P7800R/X1N/EW KEH-P6800R/X1N/EW 14 Cord CDE5761 Not used...
  • Page 9 KEH-P7800R,P6800R...
  • Page 10 KEH-P7800R,P6800R 2.3 CASSETTE MECHANISM MODULE(KEH-P7800R/X1N/EW)
  • Page 11 KEH-P7800R,P6800R - CASSETTE MECHANISM MODULE SECTION PARTS LIST(KEH-P7800R/X1N/EW) Mark No. Description Part No. Mark No. Description Part No. 1 Screw BSZ20P040FMC 31 Gear ENV1347 2 Washer CBF1037 32 Collar ENV1508 3 Washer CBF1038 33 Gear ENV1350 4 Washer CBG1003 34 Flywheel...
  • Page 12 KEH-P7800R,P6800R 2.4 CASSETTE MECHANISM MODULE(KEH-P6800R/X1N/EW)
  • Page 13 KEH-P7800R,P6800R - CASSETTE MECHANISM MODULE SECTION PARTS LIST(KEH-P6800R/X1N/EW) Mark No. Description Part No. Mark No. Description Part No. 1 Screw BSZ20P040FMC 31 Gear ENV1347 2 Washer CBF1037 32 Collar ENV1508 3 Washer CBF1038 33 Gear ENV1350 4 Washer CBG1003 34 Flywheel...

  • Page 14: Schematic Diagram

    KEH-P7800R,P6800R 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”. ANTENNA JACK Large size SCH diagram Guide page Detailed page...
  • Page 15 KEH-P7800R,P6800R...
  • Page 16 KEH-P7800R,P6800R...
  • Page 17 KEH-P7800R,P6800R A-a C...
  • Page 18 KEH-P7800R,P6800R...
  • Page 19 KEH-P7800R,P6800R...
  • Page 20 KEH-P7800R,P6800R 3.2 FM/AM TUNER UNIT FM/AM TUNER UN...
  • Page 21 KEH-P7800R,P6800R TUNER UNIT...
  • Page 22 KEH-P7800R,P6800R 3.3 CASSETTE MECHANISM MODULE(KEH-P7800R/X1N/EW) DECK UNIT VR302 CCP1280 33K(B) C256 R258 C253 330P R283 0R0 R256 220 R273 C254 330P R284 0R0 R272 R271 R290 R282 0R0 R274 C273 CXA2560Q C252 330P R287 22/16 C403 R281 0R0 R403 82...
  • Page 23 KEH-P7800R,P6800R PCB UNIT MOTOR UNIT (MAIN MOTOR) EXA1490 LOAD R373 70µs ESG1004 R375 ESG1004 R290 MODE SENSE C403 R068 EGN1 R403 82K EGN1005 C402 R402 4700P C401 R401 4R7K MOTOR UNIT (SUB MOTOR) EXA1485 EGN2 EGN3 R374 EGN1006 EGN1006 FWD END...
  • Page 24 KEH-P7800R,P6800R 3.4 CASSETTE MECHANISM MODULE(KEH-P6800R/X1N/EW) DECK UNIT R302 R304 C256 R258 C253 330P R283 0R0 R256 220 R273 C254 330P R284 0R0 R272 R290 R271 R282 0R0 R274 C273 CXA2559Q C252 330P R287 22/16 C403 R281 0R0 R403 82K C251 330P...
  • Page 25 KEH-P7800R,P6800R PCB UNIT MOTOR UNIT (MAIN MOTOR) EXA1490 LOAD R373 70µs ESG1004 ESG1004 R290 MODE SENSE C403 R068 EGN1 R403 82K EGN1005 C402 R402 4700P C401 R401 4R7K MOTOR UNIT (SUB MOTOR) EXA1485 EGN2 EGN3 R374 EGN1006 EGN1006 FWD END...

  • Page 26: Pcb Connection Diagram

    KEH-P7800R,P6800R 4. PCB CONNECTION DIAGRAM 4.1 TUNER AMP UNIT TUNER AMP UNIT NOTE FOR PCB DIAGRAMS CORD ASSY CORD 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 dia- gram.
  • Page 27 KEH-P7800R,P6800R SIDE A PRE OUT IP BUS IN ANTENNA CN251 S602 DOOR CN901...
  • Page 28 KEH-P7800R,P6800R TUNER AMP UNIT...
  • Page 29 KEH-P7800R,P6800R SIDE B...
  • Page 30 KEH-P7800R,P6800R 4.2 KEYBOARD UNIT SIDE A...
  • Page 31 KEH-P7800R,P6800R SIDE B...
  • Page 32 KEH-P7800R,P6800R 4.3 FM/AM TUNER UNIT SIDE A...
  • Page 33 KEH-P7800R,P6800R SIDE B...
  • Page 34 KEH-P7800R,P6800R 4.4 CASSETTE MECHANISM MODULE DECK UNIT SIDE A CN602 DECK UNIT SIDE B HEAD ASSY...
  • Page 35 KEH-P7800R,P6800R PCB UNIT SIDE A LOAD SW EGN1 MODE SENSE 70µ SW PCB UNIT SIDE B CN253 1 2 3 4 5 6 REEL PCB...

  • Page 36: Electrical Parts List

    KEH-P7800R,P6800R 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 37 CKSRYB222K50 CKSRYB222K50 CKSQYB104K16 CEJAR47M50 CEJA100M16 CEJAR33M50 CCSRTH9R0D50 CKSQYB473K16 CCSRTH120J50 CKSRYB123K25 CCSRCH471J50 CKSRYB103K25 CKSQYB473K16 CCSRCH471J50 CKSRYB103K25 CKSQYB472K50 Unit Number : CWM6062(KEH-P7800R) CCSRCH5R0C50 Unit Name : Tuner Amp Unit CKSQYB104K16 CCSRRH201J50 MISCELLANEOUS CKSRYB223K25 PML003AM CKSRYB103K25 PAL005A CCSRCH470J50 PM2007A CKSQYB223K25 PD4975B CKSQYB104K16 S-80734ANDYI...
  • Page 38 KEH-P7800R,P6800R =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Transistor 2SA933S RS1/10S102J Transistor DTC114EU RS1/10S223J Transistor 2SA1674 RS1/10S223J Transistor 2SA1048 RS1/10S0R0J Transistor DTC114TU RS1/10S222J Transistor DTC114TU RS1/10S222J Transistor...
  • Page 39 KEH-P7800R,P6800R =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/10S751J RS1/10S223J RS1/10S473J RS1/10S223J RD1/4PU102J RS1/10S103J RS1/10S103J RS1/10S224J RS1/10S223J RS1/10S222J RS1/10S223J RS1/10S223J RS1/10S223J RS1/10S472J RS1/10S272J RS1/10S102J RS1/10S472J RS1/10S102J RS1/10S472J...
  • Page 40 KEH-P7800R,P6800R =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CKSQYB153K50 CEJA220M10 CKSQYB153K50 CKSQYF104Z25 CKSQYB473K25 CKSQYB222K50 CEJA2R2M50 CKSQYB104K25 CEJA2R2M50 CKSQYB105K10 CCSQSL221J50 CKSQYB104K25 CCSQSL221J50 CKSQYB472K50 CEJA470M10 CEJA4R7M35 CKSQYF104Z25 CKSQYB104K25 CEJA100M16...
  • Page 41 KEH-P7800R,P6800R =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Transistor DTC143TS RESISTORS Transistor DTC143TS Transistor 2SD1757K RS1/10S102J Transistor 2SD1757K RS1/10S102J Transistor 2SC2412K RS1/10S821J RS1/10S821J Transistor 2SA1037K RS1/10S102J Transistor...
  • Page 42 KEH-P7800R,P6800R =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/10S473J RS1/10S222J RS1/10S472J RS1/10S223J RD1/4PU102J RS1/10S472J RS1/10S473J RS1/10S102J RS1/10S472J RS1/10S102J RS1/10S472J RS1/10S473J RS1/10S102J RS1/10S473J RD1/4PU153J RS1/10S102J RD1/4PU102J RS1/10S101J RS1/10S103J...
  • Page 43 KEH-P7800R,P6800R =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CCSQSL221J50 CEJA4R7M35 CEJA470M10 CKSQYB223K50 CKSQYF104Z25 CCSQSL101J50 CEJA100M16 CKSQYB103K50 CKSQYB332K50 CEJA2R2M50 CKSQYB332K50 CEJA2R2M50 CKSQYB224K16 CKSQYB471K50 CKSQYB224K16 CKSQYB223K50 CKSQYB224K16 CKSQYB104K25 CKSQYB224K16...
  • Page 44 CSZSR100M6R3 CKSQYB103K50 CKSQYF104Z50 CKSYB104K50 CSZSR100M6R3 CKSQYB103K50 CKSQYB103K25 CKSQYB334K16 CKSQYB103K25 CKSQYB472K50 CKSQYB103K25 CKSQYB683K16 CKSQYF104Z50 Unit Number : EWM1021(KEH-P6800R) Unit Number : EWM1018(KEH-P7800R) Unit Name : Deck Unit Unit Name : Deck Unit MISCELLANEOUS MISCELLANEOUS CXA2559Q CXA2560Q PA2020A PA2020A Diode 1SS355 Diode 1SS355 Semi-fixed 33kΩ(B)
  • Page 45 CKSYB104K50 CCSQCH101K50 CKSYB224K25 CKSQYB392K50 CKSQYB103K50 CKSQYB103K50 CKSYB104K50 CKSQYB103K50 CKSQYB334K16 CKSQYB472K50 CKSQYB683K16 Unit Number : Unit Name : PCB Unit(KEH-P7800R) Switch (Load) ESG1004 Switch (70µS) ESG1004 Photo-Interrupter EGN1005 Unit Number : Unit Name : PCB Unit(KEH-P6800R) Switch (Load) ESG1004 Photo-Interrupter EGN1005...

  • Page 46: Adjustment

    KEH-P7800R,P6800R 6. ADJUSTMENT - Connection Diagram BACK UP +14.4V DC Regulated Power Supply Lch + 4Ω Lch - Oscilloscope mV Meter (1) Rch + 4Ω Rch - Dummy Antenna Antenna 50Ω(37.5Ω) Stereo FM SSG Modulator 50Ω(75Ω) FM/AM TUNER UNIT (TOP VIEW)
  • Page 47 KEH-P7800R,P6800R 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.) S2:STEREO MOD., 400Hz, L or R=60%(40.50kHz+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 48: General Information

    KEH-P7800R,P6800R 7. GENERAL INFORMATION 7.1 PARTS 7.1.1 IC PML003AM Loud- Front- Rear- out_R FIE_R IN1_R IN2_R IN3_R IN4+_R IN4-_R AGND out_R SVin_R out_R DATA Isolator circuit Anti radiation Fader Secondary Anti Alias filter volume volume filter Loudness volume Primary Treble...
  • Page 49 KEH-P7800R,P6800R PML005A VCCO PGND GATE ISET-N ISET-D CLKC CLKR VDCSEN CXA2560Q...
  • Page 50 KEH-P7800R,P6800R - Pin Functions (PD4975B) Pin No. Pin Name Function and Operation swvdd Key board unit power supply control output dsens Grille detach sense csens Flap close sense input isens Illumination sense input TESTIN Test mode input/test enable drst Decoder reset output...
  • Page 51 KEH-P7800R,P6800R Pin No. Pin Name Function and Operation RIMUTE Mute output when RI Clock adjustment output NR output Cassette mechanism sub motor control output Cassette mechanism sub motor control output Cassette mechanism capstan motor control output stby Drive IC control output...
  • Page 52 KEH-P7800R,P6800R - Pin Functions(PD6294A) Pin No. Pin Name Function and Operation Crystal oscillator connection pin Crystal oscillator connection pin System reset MODE1,0 GRN/amb Green/Amber select output UART output UART input REMIN Remote control reception RVER Not used Not used 13–16 KDT4–1...

  • Page 53: Display

    KEH-P7800R,P6800R 7.1.2 DISPLAY - CAW1501...

  • Page 54: Diagnosis

    KEH-P7800R,P6800R 7.2 DIAGNOSIS 7.2.1 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.

  • Page 55: Test Mode

    KEH-P7800R,P6800R 7.2.2 TEST MODE - Flow Chart ACC, Back-up ON 00" SOURCE Display <CD multi player selected> During regulator off, press the 6 BAND 00" 00" key and the system will be put into the new test mode. Display Display <Power ON>...
  • Page 56 KEH-P7800R,P6800R - New Test Mode(aging operation and setup analysis) The single CD player plays in normal mode. After being set up, it will display FOK (focus), LOCK (spindle), subcode, sound skip, protection against a mechanical error or the like, occurrence of an error, cause and time of an expiry, if any, (and disc number) During the setup, the CD software operation status (internal RAM and C-point)is displayed.
  • Page 57 KEH-P7800R,P6800R (5) Example of Display. •Protection/Error upon occurrence(8 digits display LCD) •SET UP in progress 8 digits display LCD (a) Error number indicated TNo. ERROR–xx Select the display with the •Operation (PLAY, SEARCH, etc.) in progress perfectly BAND key. identical with that in the normal mode.

  • Page 58: Block Diagram

    KEH-P7800R,P6800R 7.3 BLOCK DIAGRAM...

  • Page 59: Operations And Specifications

    KEH-P7800R,P6800R 8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATIONS Head Unit DISPLAY button FUNCTION button 5/∞/2/3 buttons PGM button OPEN button EQ button Buttons 1–6 +/– button TA button BAND button SOURCE/OFF button PTY button AUDIO button Steering Remote Controller A steering remote controller that enables remote operation of the head unit is supplied.
  • Page 60 KEH-P7800R,P6800R...
  • Page 61 KEH-P7800R,P6800R...
  • Page 62 KEH-P7800R,P6800R...
  • Page 63 KEH-P7800R,P6800R...

  • Page 64: Specifications

    Amplifier Stereo separation ............45 dB Maximum power output ........45 W × 4 Signal-to-noise ratio(KEH-P7800R) Continuous power output ........27 W × 4 ..Metal: Dolby B NR IN: 67 dB (IEC-A network) Dolby NR OUT: 61 dB (IEC-A network) (DIN45324, +B = 14.4 V)

This manual is also suitable for:

Keh-p7800rewKeh-p6800rKeh-p6800rewKeh-p7800rx1nKeh-p6800rx1n

Table of Contents