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Pioneer DEH-240F Service Manual

High power cd player with fm/am tuner.
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Service
Manual
HIGH POWER CD PLAYER WITH FM/AM TUNER
DEH-240F
DEH-2400F
DEH-24F
- This service manual should be used together with the following manual(s):
Model No.
Order No.
CX-977
CRT2624
CONTENTS
1. SAFETY INFORMATION ............................................3
2. EXPLODED VIEWS AND PARTS LIST .......................4
4. PCB CONNECTION DIAGRAM ................................24
5. ELECTRICAL PARTS LIST ........................................32
6. ADJUSTMENT..........................................................37
For details, refer to "Important symbols for good services" on the next page.
PIONEER CORPORATION
PIONEER ELECTRONICS (USA) INC.
PIONEER EUROPE NV
Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2001
DEH-240F/XN/UC
XN/UC
Mech. Module Remarks
S9
CD Mech. Module:Circuit Description, Mech.Description, Disassembly
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
XN/UC
7. GENERAL INFORMATION .......................................41
7.1 DIAGNOSIS ........................................................41
7.1.1 DISASSEMBLY .........................................41
7.1.2
7.2 PARTS .................................................................45
7.2.1 IC................................................................45
7.2.2 DISPLAY ....................................................53
7.3 OPERATIONAL FLOW CHART ...........................54
7.4 CLEANING ..........................................................55
8. OPERATIONS AND SPECIFICATIONS.....................56
ORDER NO.
CRT2757
XN/UC
.......44
K-ZZD. NOV. 2001 Printed in Japan

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   Summary of Contents for Pioneer DEH-240F

  • Page 1

    PIONEER ELECTRONICS (USA) INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER CORPORATION 2001 K-ZZD. NOV. 2001 Printed in Japan...

  • Page 2

    DEH-240F,2400F,24F [ Important symbols for good services ] In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them: 1. Product safety You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual.

  • Page 3: Safety Information

    DEH-240F,2400F,24F 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 4: Exploded Views And Parts List

    DEH-240F,2400F,24F 2. EXPLODED VIEWS AND PARTS LIST 2.1 PACKING...

  • Page 5

    9 Polyethylene Bag CEG-158 10 Handle CNC5395 11 Bush CNV3930 (2) CONTRAST TABLE DEH-240F/XN/UC, DEH-2400F/XN/UC and DEH-24F/XN/UC are constructed the same except for the fol- lowing: Part No. Mark No. Symbol and Description DEH-240F/XN/UC DEH-2400F/XN/UC DEH-24F/XN/UC 1-1 Owner's Manual CRD3497...

  • Page 6

    DEH-240F,2400F,24F 2.2 EXTERIOR...

  • Page 7

    CNS6278 80 Transistor(Q510,910) 2SD2396 81 IC(IC361) TDA7386 82 Panel CNS6332 (2) CONTRAST TABLE DEH-240F/XN/UC, DEH-2400F/XN/UC and DEH-24F/XN/UC are constructed the same except for the fol- lowing: Part No. Mark No. Symbol and Description DEH-240F/XN/UC DEH-2400F/XN/UC DEH-24F/XN/UC 53 Detach Grille Assy...

  • Page 8

    DEH-240F,2400F,24F 2.3 CD MECHANISM MODULE (UD321BR) (GEM1035)

  • Page 9

    DEH-240F,2400F,24F - CD MECHANISM MODULE SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Control Unit CWX2481 46 Gear CNV6320 2 Connector(CN701) CKS1959 47 Arm CNV6322 48 Arm CNV6323 3 Connector(CN101) CKS3486 4 Screw BMZ20P025FMC...

  • Page 10: Block Diagram And Schematic Diagram

    DEH-240F,2400F,24F 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM TUNER AMP UNIT FM/AM TUNER UNIT FM/AM 1ST IF 10.7MHz MPXREF 41kHz AMRF T51 Q51 CF51 CF52 CF53 ANTENNA AMDET CN402 AMANT L ch IC 2 FM MPX R ch...

  • Page 11

    DEH-240F,2400F,24F CN351 REAR L CH Q 351 SYSTEM CONTROLLER Q359 IC 610 (1/2) PE5262B VDD REGULATOR Q913 TUNPCE PCE1 TUNPCK TUNPCE2 PCE2 TUNPDO PDIO VCC REGULATOR TUNPDI Q910 Q911 LOCL CN901 SYSPW BACKUP Q912 BACK UP POWER AMP VST/ VCK/ VDT...

  • Page 12

    DEH-240F,2400F,24F 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”. Large size SCH diagram Guide page Detailed page ELECTRONIC R791 SYST ANTENNA JACK DSENS EJECT...

  • Page 13

    DEH-240F,2400F,24F TUNER AMP UNIT CD:+9.4dBs VOLUME PRE OUT FM(100%):+3.6dBs AM(30%):-6.9dBs CD:+10.2dBs MUTE EM CONTROLLER 600µH POWER AMP FM(100%):+29.6dBs AM(30%):+19.1dBs CD:+36.2dBs CEK1136 > BACK UP B.REM VDD REGULATOR VCC REGULATOR SYS+B REGULATOR BACK UP SENSE ACC SENSE B.REMOTE...

  • Page 14

    DEH-240F,2400F,24F...

  • Page 15

    DEH-240F,2400F,24F A-a B...

  • Page 16

    DEH-240F,2400F,24F...

  • Page 17

    DEH-240F,2400F,24F...

  • Page 18

    DEH-240F,2400F,24F 3.3 KEYBOARD UNIT KEY CONTROL AND DISPLAY DRIVER CLOC ← DEH-340/XN/UC DEH-3400/XN/UC DEH-34/XN/UC D1919,1920 SML-310PT SML-310DT S1900 CSG1107 CSG1133 S1901-1906 CSG1107 CSG1117 S1908-1916 CSG1107 CSG1117 CAW1724 CAW1719...

  • Page 19

    DEH-240F,2400F,24F KEYBOARD UNIT VOLUME CSD1077 SOURCE CN1951 CSG1111 CLOCK LOCAL ← BAND LOUD CSG1111 AUDIO...

  • Page 20: Cd Mechanism Module

    DEH-240F,2400F,24F 3.4 CD MECHANISM MODULE CONTROL UNIT PICKUP UNIT(SERVICE)(P9) RF AMP CN101 ACT/MOTOR DRIVER SPINDLE M1 CXB6007 LOADING/CARRIAGE M2 CXB5903 5V REGULATOR...

  • Page 21

    DEH-240F,2400F,24F SERVO CONTROL/DSP/DAC/LPF 16.934MHz SWITCHES: CONTROL UNIT S901 : HOME SWITCH..ON-OFF S902 : CLAMP SWITCH..ON-OFF S903 : DSCSNS SWITCH..ON-OFF S904 : 12EJ SWITCH..ON-OFF S905 : 8EJ SWITCH..ON-OFF The underlined indicates the switch position. Decimal points for resistor and capacitor fixed values are expressed as : 2.2→2R2...

  • Page 22

    DEH-240F,2400F,24F Note:1. The encircled numbers denote measuring pointes in the circuit diagram. 2. Reference voltage VREF:2.1V - Waveforms 5 CH1:FD 1 CH1:DSCSNS 5V/div. 1 CH1:DSCSNS 5V/div. 500mV/div. 6 CH2:FOK 2 CH2:CLCONT 2 CH2:CLCONT 5V/div. 5V/div. 500ms/div. 5V/div. 500ms/div. 500ms/div. 7 CH3:MD...

  • Page 23

    DEH-240F,2400F,24F % CH1:RFO 5 CH1:FD % CH1:RFO 1V/div. 1V/div. 1V/div. 200ms/div. 0 CH2:TE ^ CH2:FOP 0 CH2:TE 500µs/div. 1V/div. 5ms/div. 2V/div. 500mV/div. ! CH3:TD ! CH3:TD 1V/div. 1V/div. With no disk inserted 32 Track Jump During "Focus Close" 1 Track Jump Ref.

  • Page 24: Pcb Connection Diagram

    DEH-240F,2400F,24F 4. PCB CONNECTION DIAGRAM 4.1 TUNER AMP UNIT TUNER AMP UNIT CORD ASSY 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 dia- gram.

  • Page 25

    DEH-240F,2400F,24F SIDE A PRE OUT ANTENNA JACK CN1950 FRONT...

  • Page 26

    DEH-240F,2400F,24F TUNER AMP UNIT...

  • Page 27

    DEH-240F,2400F,24F SIDE B...

  • Page 28

    DEH-240F,2400F,24F 4.2 PANEL UNIT SIDE B PANEL UNIT PANEL UNIT CN1901 CN750...

  • Page 29

    DEH-240F,2400F,24F 4.3 KEYBOARD UNIT SIDE A SIDE B KEYBOARD UNIT KEYBOARD UNIT ← CN1951...

  • Page 30

    DEH-240F,2400F,24F 4.4 CD MECHANISM MODULE SIDE A CONTROL UNIT...

  • Page 31

    DEH-240F,2400F,24F SIDE B CONTROL UNIT...

  • Page 32: Electrical Parts List

    DEH-240F,2400F,24F 5. ELECTRICAL PARTS LIST NOTES: - 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

    DEH-240F,2400F,24F =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S0R0J RD1/4PU102J RS1/16S0R0J RS1/16S472J RS1/16S0R0J RS1/16S102J RS1/16S0R0J RS1/16S473J RS1/16S0R0J RS1/16S0R0J RD1/4PU222J RS1/16S0R0J RD1/4PU222J RS1/16S0R0J RD1/4PU102J RS1/16S152J RS1/16S104J RS1/16S0R0J RS1/16S0R0J...

  • Page 34

    DEH-240F,2400F,24F =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CKSRYB103K50 1943 RS1/16S151J CKSRYB104K25 1950 RS1/16S104J 330µF/16V CCH1326 1954 RS1/16S151J CKSRYB103K50 1955 RS1/16S181J CEJQ101M16 1956 RS1/16S181J CEJQ101M10 1957 RS1/16S181J...

  • Page 35

    DEH-240F,2400F,24F =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- 1915 RS1/16S181J RS1/16S823J 1917 RS1/16S121J RS1/16S823J 1919 RS1/16S121J RS1/16S823J 1920 RS1/16S121J RS1/16S124J 1927 RS1/16S472J RS1/16S183J 1935 RS1/16S104J RS1/16S153J 1936...

  • Page 36

    DEH-240F,2400F,24F =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- CKSRYB103K50 CKSRYB104K16 CKSRYB104K16 CKSRYB333K16 CKSRYB104K16 CKSRYB473K16 CKSRYB473K16 CKSRYB104K16 CKSRYB104K16 CEV220M6R3 CKSRYB104K16 CKSRYB104K16 CKSRYB104K16 CCSRCH470J50 CKSRYB471K50 CKSRYB472K50 CKSRYB104K16 CKSRYB104K16 CKSRYB104K16 CKSRYB221K50 CKSRYB221K50 CKSRYB153K25 CKSRYB103K50 CEV101M10 CKSRYB104K16 CKSRYB104K16 10µF/10V CCH1349 CEV101M10...

  • Page 37: Adjustment

    DEH-240F,2400F,24F 6. ADJUSTMENT 6.1 CD ADJUSTMENT 1) Precautions 2) Test Mode • This unit uses a single power supply (+5V) for the reg- This mode is used for adjusting the CD mechanism ulator. The signal reference potential, therefore, is module of the device.

  • Page 38: Checking The Grating After Changing The Pickup Unit

    DEH-240F,2400F,24F 6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT • Note : The grating angle of the PU unit cannot be adjusted after the PU unit is changed. The PU unit in the CD mecha- nism module is adjusted on the production line to match the CD mechanism module and is thus the best adjusted PU unit for the CD mechanism module.

  • Page 39

    DEH-240F,2400F,24F Ech → Xch 20mV/div, AC Grating waveform Fch → Ych 20mV/div, AC 0° 30° 45° 60° 75° 90°...

  • Page 40: Error Mode

    DEH-240F,2400F,24F 6.3 ERROR MODE - Error Messages If a CD is not operative or stopped during operation due to an error, the error mode is turned on and cause(s) of the error is indicated with a corresponding number. This arrangement is intended at reducing nonsense calls from the users and also for facilitating trouble analysis and repair work in servicing.

  • Page 41: General Information

    DEH-240F,2400F,24F 7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 DISASSEMBLY Removing the Case (not shown) 1. Remove the Case. CD Mechanism Module Removing the Panel Assy (Fig.1) Remove the two screws and then remove the Panel Assy. Removing the CD Mechanism Module (Fig.1) Remove the four screws and then remove the CD Mechanism Module.

  • Page 42

    DEH-240F,2400F,24F - How to hold the Mechanical Unit 1. Hold the top and bottom frame. 2. Do not squeeze top frame's front portion too tight, because it is fragile. Do not squeeze. - How to remove the Top and Bottom Frame 1.

  • Page 43

    DEH-240F,2400F,24F - How to remove the Control Unit 1. Give jumper-solder treatment to the Flexible Wire of Jumper-Solder the Pickup unit, then remove the wire from the Connector. Control Unit 2. Remove all 4 points of solder-treatment on the Lead Wire.

  • Page 44: Connector Function Description

    DEH-240F,2400F,24F 7.1.2 CONNECTOR FUNCTION DESCRIPTION ANTENNA PRE OUT 1. GND 2. BACK UP 3. ACC 4. NC 5. NC 6. B.REM 7. NC 8. NC 9. RL- 10. FL- 11. RL+ 12. FL+ 13. RR- 14. FR- 15. RR+ 16. FR+...

  • Page 45: Parts

    DEH-240F,2400F,24F 7.2 PARTS 7.2.1 IC Pin Functions(PE5262A) Pin No. Pin Name Format Function and Operation MODEL1 Model select input Not used AVSS A/D GND FM stereo input SD input AVREF1 A/D converter reference voltage KYDT Key data input DPDT Display data output...

  • Page 46

    DEH-240F,2400F,24F Pin No. Pin Name Format Function and Operation Power supply Crystal oscillator connection pin Crystal oscillator connection pin IC(VPP) Connect to GND Not used TESTIN Test program mode input AVDD Positive power supply terminal for analog circuit AVREF0 A/D converter reference voltage...

  • Page 47

    DEH-240F,2400F,24F - Pin Functions (PD6340A) Pin No. Pin Name Function and Operation SEG4-0 LCD segment output COM3-0 LCD common output VLCD LCD drive power supply 11-14 KST3-0 Key strobe output 15,16 KDT0,1 Key data input (analogue input) Remote control reception...

  • Page 48

    DEH-240F,2400F,24F - Pin Functions(TA2153FN) Pin No. Pin Name Function and Operation Power supply voltage terminal RFGC RF amplitude adjustment control signal terminal GMAD AGC amplifier frequency characteristic adjustment terminal Main beam amplifier input terminal Main beam amplifier input terminal Sub beam amplifier input terminal...

  • Page 49

    DEH-240F,2400F,24F - Pin Functions(TC9495F2) Pin No. Pin Name Function and Operation TESTO Test mode terminal Replay speed flag output terminal uhso Replay speed flag output terminal EMPH Emphasis flag output terminal for sub code Q data LRCK Channel clock (44.1 kHz) output terminal...

  • Page 50

    DEH-240F,2400F,24F Pin No. Pin Name Function and Operation 58-61 FLGA-D External flag output terminal for internal signal monitor Digital + power supply terminal (5 V) Digital ground terminal RF amplifier gain switching terminal Not used HOME detection switch input terminal...

  • Page 51

    DEH-240F,2400F,24F - Pin Functions(BA5996FM) Pin No. Pin Name Function and Operation Input pin for reference voltage OPIN2(+) Input pin for non-inverting input for CH2 preamplifier OPIN2(-) Input pin for inverting input for CH2 preamplifier OPOUT2 Output pin for CH2 preamplifier...

  • Page 52

    DEH-240F,2400F,24F - FM/AM Tuner Unit FM/AM 1ST IF 10.7MHz MPXREF 41kHz AMRF T51 Q51 CF51 CF52 CF53 AMDET AMANT L ch IC 2 FM MPX R ch ANT ADJ COMP MIXER, IF AMP, DET. LDET FMANT RFGND FMRF CF202 IC 3...

  • Page 53: Display

    DEH-240F,2400F,24F 7.2.2 DISPLAY - CAW1724(DEH-240F/XN/UC, DEH-2400F/XN/UC), CAW1719(DEH-24F/XN/UC)

  • Page 54: Operational Flow Chart

    DEH-240F,2400F,24F 7.3 OPERATIONAL FLOW CHART Power ON VDD=5V Pin 68 bsens Pin 63 BSENS=L asens Pin 64 ASENS=L dsens Pin 65 DSENS=L ADPW←H Pin 66 CSENS - CSENS 2V, 3V CSENS Pin 80 Source returns to the original one(before you open).

  • Page 55: Cleaning

    DEH-240F,2400F,24F 7.4 CLEANING Before shipping out the product, be sure to clean the following portions by using the prescribed cleaning tools: Portions to be cleaned Cleaning tools CD pickup lenses Cleaning liquid : GEM1004 Cleaning paper : GED-008...

  • Page 56: Operations And Specifications

    DEH-240F,2400F,24F 8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATIONS What’s what button button BAND Press and hold for two seconds to switch BSM function on or Press to select among three FM and one AM band and cancel off. the control mode of functions.

  • Page 57

    DEH-240F,2400F,24F...

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    DEH-240F,2400F,24F...

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    DEH-240F,2400F,24F...

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    DEH-240F,2400F,24F...

  • Page 61: Specifications

    DEH-240F,2400F,24F 8.2 SPECIFICATIONS General CD player Power source ....14.4 V DC (10.8 – 15.1 V System ......Compact disc audio allowable) system Grounding system ..Negative type Usable discs ....Compact disc Max. current consumption Signal format: ......... 10.0 A Sampling frequency 44.1 kHz...

This manual also for:

Deh-2400f, Deh-24f

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