Pioneer DEH-2050MPA, DEH-2050MPG, DEH-2090MP Service manual

PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan

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

PIONEER CORPORATION 2007

CD RECEIVER

ORDER NO.

CRT4045

DEH-2050MPA/XN/EC

DEH-2050MPA

DEH-2050MPG DEH-2090MP

This service manual should be used together with the following manual(s):

Model No. Order No. Mech.Module Remarks

CX-3195 CRT3815 S10.5COMP2 CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly

/XN/ID

/XN/EC

For details, refer to "Important Check Points for Good Servicing".

K-ZZU. OCT. 2007 Printed in Japan

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SAFETY INFORMATION

- Safety Precautions for those who Service this Unit. When checking or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable results.

Caution:

1. During repair or tests, minimum distance of 13 cm from the focus lens must be kept.

2. During repair or tests, do not view laser beam for 10 seconds or longer.

CAUTION

Danger of explosion if battery is incorrectly replaced. Replaced only with the same or equivalent type recommended by the manufacture.

Discord used batteries according to the manufacture's instructions.

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. 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.

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[Important Check Points for Good Servicing]

In this manual, procedures that must be performed during repairs are marked with the below symbol. Please be sure to confirm and follow these procedures.

1. Product safety

Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by following the safety instructions described in this manual.

1 Use specified parts for repair.

Use genuine parts. Be sure to use important parts for safety.

2 Do not perform modifications without proper instructions.

Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as radio/TV interference and foreign noise.

3 Make sure the soldering of repaired locations is properly performed.

When you solder while repairing, please be sure that there are no cold solder and other debris. Soldering should be finished with the proper quantity. (Refer to the example)

4 Make sure the screws are tightly fastened.

Please be sure that all screws are fastened, and that there are no loose screws.

5 Make sure each connectors are correctly inserted.

Please be sure that all connectors are inserted, and that there are no imperfect insertion.

6 Make sure the wiring cables are set to their original state.

Please replace the wiring and cables to the original state after repairs. In addition, be sure that there are no pinched wires, etc.

7 Make sure screws and soldering scraps do not remain inside the product.

Please check that neither solder debris nor screws remain inside the product.

8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.

Damaged power cords may lead to fire accidents, so please be sure that there are no damages. If you find a damaged power cord, please exchange it with a suitable one.

9 There should be no spark traces or similar marks on the power plug.

When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure connections and suitable usage. Please exchange the power cord if necessary.

a Safe environment should be secured during servicing.

When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries. Please pay attention to your surroundings and repair safely.

2. Adjustments

To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification. Adjustments should be performed in accordance with the procedures/instructions described in this manual.

4. Cleaning

For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper cleaning should be performed to restore their performances.

3. Lubricants, Glues, and Replacement parts

Use grease and adhesives that are equal to the specified substance. Make sure the proper amount is applied.

5. Shipping mode and Shipping screws

To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be installed before shipment. Please be sure to follow this method especially if it is specified in this manual.

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

1. SERVICE PRECAUTIONS............................................................................................................................... 5

1.1 SERVICE PRECAUTIONS ........................................................................................................................ 5

1.2 NOTES ON SOLDERING.......................................................................................................................... 5

2. SPECIFICATIONS............................................................................................................................................ 6

2.1 SPECIFICATIONS ..................................................................................................................................... 6

2.2 DISC/CONTENT FORMAT ........................................................................................................................ 6

2.3 PANEL FACILITIES.................................................................................................................................... 7

2.4 PANEL FACILITIES.................................................................................................................................... 8

3. BASIC ITEMS FOR SERVICE.......................................................................................................................... 9

3.1 CHECK POINTS AFTER SERVICING....................................................................................................... 9

3.2 PCB LOCATIONS .................................................................................................................................... 10

3.3 JIGS LIST .................................................................................................................................................11

4. BLOCK DIAGRAM.......................................................................................................................................... 12

4.1 BLOCK DIAGRAM................................................................................................................................... 12

5. DIAGNOSIS.................................................................................................................................................... 16

5.1 OPERATIONAL FLOW CHART............................................................................................................... 16

5.2 ERROR CODE LIST................................................................................................................................ 17

5.3 CONNECTOR FUNCTION DESCRIPTION............................................................................................. 18

6. SERVICE MODE............................................................................................................................................ 19

6.1 CD TEST MODE...................................................................................................................................... 19

6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT.................................................... 21

7. DISASSEMBLY .............................................................................................................................................. 23

8. EACH SETTING AND ADJUSTMENT ........................................................................................................... 26

8.1 PCL OUTPUT CONFIRMATION.............................................................................................................. 26

9. EXPLODED VIEWS AND PARTS LIST.......................................................................................................... 26

9.1 PACKING ................................................................................................................................................. 26

9.2 EXTERIOR............................................................................................................................................... 28

9.3 CD MECHANISM MODULE..................................................................................................................... 30

10. SCHEMATIC DIAGRAM............................................................................................................................... 32

10.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) ........................................................................... 32

10.2 KEYBOARD UNIT.................................................................................................................................. 38

10.3 CD MECHANISM MODULE(GUIDE PAGE) .......................................................................................... 40

10.4 WAVEFORMS........................................................................................................................................ 46

11. PCB CONNECTION DIAGRAM.................................................................................................................... 48

11.1 TUNER AMP UNIT................................................................................................................................. 48

11.2 KEYBOARD UNIT.................................................................................................................................. 52

11.3 CD CORE UNIT(S10.5COMP2)............................................................................................................. 54

12. ELECTRICAL PARTS LIST.......................................................................................................................... 56

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- Service Precaution

1. 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.

2. Before disassembling the unit, be sure to turn off the power. Unplugging and plugging the connectors during power-on mode may damage the ICs inside the unit.

3. To protect the pickup unit from electrostatic discharge during servicing, take an appropriate treatment (shorting-solder) by referring to "the DISASSEMBLY".

4. After replacing the pickup unit, be sure to check the grating.

5. Be careful in handling ICs. Some ICs such as MOS type are so fragile that they can be damaged by electrostatic induction.

For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit. Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs accompanied by reworking of soldering.

Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 C. Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 C in general, although the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of the soldering iron.

Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting temperatures (hard to melt/easy to harden).

The following lead-free solders are available as service parts: Parts numbers of lead-free solder: GYP1006 1.0 in dia. GYP1007 0.6 in dia. GYP1008 0.3 in dia.

1. SERVICE PRECAUTIONS

1.1 SERVICE PRECAUTIONS

1.2 NOTES ON SOLDERING

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2. SPECIFICATIONS

Backup current

...................................... 2 mA or less

2.1 SPECIFICATIONS

2.2 DISC/CONTENT FORMAT

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2.3 PANEL FACILITIES

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2.4 PANEL FACILITIES

- Connection Diagram

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To keep the product quality after servicing, please confirm following check points.

No. Procedures Item to be confirmed

Confirm whether the customer complain has been solved. If the customer complain occurs with the specific media, use it for the operation check.

The customer complain must not be reappeared. Display, audio and operations must be normal.

2CD PlaybackaCD.

(Track search)

No malfunction on display, audio and operation. Display, audio and operations must be normal.

3 FM/AM tuner

Check FM/AM tuner action. (Seek, Preset) Switch band to check both FM and AM.

Display, audio and operations must be normal.

4 Check whether no disc is inside the product.

The media used for the operating check must be ejected.

5 Appearance check

No scratches or dirt on its appearance after receiving it for service.

See the table below for the items to be checked regarding video and audio:

Item to be checked regarding audio

Distortion

Noise

Volume too low

Volume too high

Volume fluctuating

Sound interrupted

3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

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3.2 PCB LOCATIONS

CD Core Unit(S10.5)

Tuner Amp Unit

Keyboard Unit

Unit Number : YWM5238(EC) Unit Number : YWM5234(ID) Unit Name : Tuner Amp Unit Unit Number : Unit Name : Keyboard Unit Unit Number : CWX3514 Unit Name : CD Core Unit(S10.5COMP2)

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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

- Jigs List

Name

Test Disc L.P.F.

Jig No.

TCD-782

Remarks

Checking the grating Checking the grating (Two pieces)

Name

Jig

- Grease List

Name

Grease Grease

Grease No.

GEM1024 GEM1045

Remarks

CD Mechanism Module CD Mechanism Module

3.3 JIGS LIST

No.

rease No.

emarks

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4. BLOCK DIAGRAM

PICKUP UNIT (P10.5)(SERVICE)

CD CORE UNIT(S10.5COMP2)

BRST,BRXEN,BSRQ

CN701

Q101

LASER DIODE

MONITOR

DIODE

S903

DSCSNS

SPINDLE

MOTOR

CARRIAGE

MOTOR

LOAD/

LD-

HOLOGRAM

UNIT

IC301

BA5839FP

IC201

PE5547A

RF-AMP, CD DECODER,

MP3/WMA DECODER,

DIGITAL SERVO /

DATA PROCESSOR

DRIVER

LOUT

CN101

SOP

SOM

LCOP

LCOM

CLCONT

LOUT

CONT

TD,FD

AC,BD,F,E

SD,MD

S901

HOME

S904 12EJ

S905 8EJ

LD+

141

142

12EJ

CONT

CLCONT

HOME

VDD

BDATA,BSCK

Q102

/PUEN

VDD

FOCUS ACT.

TRACKING ACT.

FOP TOP

2 1

TOP

FOP

TOP

2 1

8EJ

DSCSNS

VCC

/RESET

VREF

REFO

133

REFOUT

FOM

TOM

LOEJ

X201

XTAL

/XTAL

16.93MHz

VDSENS

IN1_L

IN2_L

ELEC

SOU

TUNL

CN401

CN651

TUNER AMP UNIT

LOUT

SYS+B

ANTENNA

IFA

IFB

CDRESET

B.UP

VDD

Q991

SWVDD

SWD5V

IC 911

BA4918-V12

BSENS

TOP41

POWEROFF

SWVDD

Q992

BRST,BRXEN,BSRQ,BDATA,BSCK

RESET

FM/AM TUNER UNIT

AM_ANT

SL-IN

REFA

REFB

LDET

SWVDD

CE1

CE2

SLOUT

SL-IN

IFA

IFB

REFA

REFB

LDET

CE1

CE2

SLOUT

PDL3

126

CD VD

CDL

REGULATOR IC

B.UP

VDD

SYS+B

IC 601(2

PN5012

SYSTEM M

COMPUT

SYSPW

DREG

SWVDD

Q601

PLL_VDD

DVDD3

REGC(M)

DVDD2

DVDD4

121

ATT

TANK

ATT RF

LFP

LFPVCO

IC1

MIX / IF / PLL

IC2

EEPROM

1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 2011

ANT

VCC

SLIN

IFOUTA

IFOUTB

DGND

REFINA

REFINB

LDET

VDD

CE1

CE2

SLOUT

RFGND1

RFGND2

RFGND3

RFGND4

4.1 BLOCK DIAGRAM

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IN1_L

IN2_L

IC 151

PML014A

ELECTRONIC VOLUME/

SOURCE SELECTOR

TUNL

Rear_L

B.UP

MUTE

VCC

B.REMOTE

ACC

AMP

IC 301

PAL007C

Q931

MUTE

CN831

VCK, VDT, VST

Q201(1/2)

Q201(2/2)

B.UP

Q821

SYSTEM MICRO

COMPUTER

ACC SENSE

CN901

SOURCE

DSENS

ILM+B

ROT1

ROT0

DPDT

KYDT

SRC

ILMPW

VCK

111

VDT

110

DPDT/SELF

KEYDT/SELF

CN351

RLIn

DSENS

Q822

ASENS

Front_L

FLIn

XOUT

XIN

X601

74.1MHz

Q351

MUTE

NC/BREM

ASENS

CDRESET

BSENS

TOP41

POWEROFF

SWVDD

SL-

SL-IN

IF_INA

IFA

IF_INB

IFB

FREF_A

REFA

FREF_B

REFB

LOCK

LDET

100

101

102

CE1

103

VST

109

CE2

ADIN7

136

SLOUT

L_OUT

PDL3

CDL

IC 601(2/2)

PN5012B

SYSTEM MICRO

COMPUTER

STBY

B.UP

AUX-G

AUX-L

AUX-G

IN4+_L

IN4-_L

ILMPW

DREG

PLL_VDD

DVDD3

REGC(M)

DVDD2

DVDD4

MUTE

BU_X1

BU_X2

X602

4.7186MHz

SRC

DSENS

ILL+B

ROT1

ROT0

DPDT

KYDT

IC 1801

PD6340A

LCD DRIVER/

KEY CONTROLLER

KEY DATA

LCD1801

CN1801

KEYBOARD UNIT

DPDT

KYDT

D1803-D1810 D1812-D1823 D1825

SWVDD

SWD5V

SWVDD

X1801 5MHz

KEY MATRIX

10 56

VLCD VDD

VOLUME

S1831

SOURCE

S1830

CN1802

AUX G

AUX L

AUX G

AUX L

AUX IN

IC 601(1/2)

PN5013B

BACK UP

GND

ACC

B.REM

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No. Symbol I/O Explain

1 ANT I Antenna Input Antenna input. 75 ohm. Surge absorber is necessary.

Series circuit including an inductor and a resistor is connected with RF ground for the countermeasure against the ham of power transmission line.

2 RFGND1 RF Ground Ground of R.F. block 3 RFGND2 RF Ground Ground of R.F. block 4 RFGND3 RF Ground Ground of R.F. block 5 RFGND4 RF Ground Ground of R.F. block 6 VCC Power Supply Power supply for Analog block. D.C 8.4 V + 0.3 V

(performance isn't guaranteed besides 8.4 V)

7 SLIN I Signal Level Input Input signa level from BE_IC 8 IFOUTA

IFOUTB

OOIF Output IF signal output (F.E.output)

9 IF Output IF signal output (F.E.output) 10 DGND Digital Ground Ground of Digital. block 11 REFINA I

Reference Signal Input reference signal for PLL part with FE_IC 12 REFINB Reference Signal Input reference signal for PLL part with FE_IC 13 LDET Lock Detector PLL lock detecter output "High" active 14 VDD

Power Supply Power supply for Digital block. D.C 3.3 V + 0.2 V 15 DI Data In

16 CK CK

17 CE1 Chip Enable-1 Chip enable for FE_IC "High" active 18 DO O Data Out Data output 19 CE2 O Chip Enable-2

20 SLOUT O Signal Level Output Output of FM/AM signals level (D.C.)

- FM/AM Tuner Unit

Clock data input(not sending data in tuner reception operating in noise being output)

Data input (not sending data in tuner reception operating in noise being output)

Chip enable for EEPROM "Low" active. in power ON/OFF, please turn CE2 into "High" (= VDD).

ATT

TANK

ATT RF

LFP

LFPVCO

IC1

MIX / IF / PLL

IC2

EEPROM

1 2 3 4 5 6 7 8 9 10 121314151617 18192011

ANT

VCC

SLIN

IFOUTA

IFOUTB

DGND

RFINA

RFINB

LDET

VDDDICK

CE1DOCE2

SLOUT

RFGND1

RFGND2

RFGND3

RFGND4

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- LCD(CAW1930)

SEGMENT

COMMON

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5. DIAGNOSIS

SWVDD

VDD Pin 8

Power ON

bsens = L

asens = L

bsens

Pin 36

asens

Pin 35

Pin 1

Source keys operative

Completes power-on operation.(After that, proceed to each source operation.)

SYSPW H Pin 15

Starts communication with Grille microcomputer.

Source ON

300 ms

In case of the above signal, the communication with Grille microcomputer may fail. If the time interval is not 300 msec, the oscillator may be defective.

5.1 OPERATIONAL FLOW CHART

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- 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.

(1) Basic Indication Method

1) When SERRORM is selected for the CSMOD (CD mode area for the system), error codes are written to DMIN (minutes display area) and DSEC (seconds display area). The same data is written to DMIN and DSEC. DTNO remains in blank as before.

2) Head unit display examples Depending on display capability of LCD used, display will vary as shown below. xx contains the error number.

8-digit display 6-digit display 4-digit display

ERROR-xx ERR-xx E-xx

(2) Error Code List

Code Class Displayed error code Description of the code and potential cause(s) 10 Electricity Carriage Home NG CRG can't be moved to inner diameter.

SERVO LSI Com- CRG can't be moved from inner diameter. munication Error → Failure on home switch or CRG move mechanism.

Communication error between microcomputer and SERVO LSI.

11 Electricity Focus Servo NG Focusing not available.

→ Stains on rear side of disc or excessive vibrations on REWRITABLE.

12 Electricity Spindle Lock NG Spindle not locked. Sub-code is strange (not readable).

Subcode NG → Failure on spindle, stains or damages on disc, or excessive vibrations.

A disc not containing CD-R data is found. Turned over disc are found, though rarely. CD signal error.

17 Electricity Setup NG AGC protection doesn't work. Focus can be easily lost.

→ Damages or stains on disc, or excessive vibrations on REWRITABLE.

30 Electricity Search Time Out Failed to reach target address.

→ CRG tracking error or damages on disc.

44 Electricity ALL Skip Skip setting for all track.

(CD-R/RW)

Mechanism

CD On Mech Error Mechanical error during CD ON.

→ Defective loading motor, mechanical lock and mechanical sensor.

A0 System Power Supply NG Power (VD) is ground faulted.

→ Failure on SW transistor or power supply (failure on connector).

Remarks: Mechanical errors are not displayed (because a CD is turned off in these errors).

Unreadable TOC does not constitute an error. An intended operation continues in this case. Upper digits of an error code are subdivided as shown below: 1x: Setup relevant errors, 3x: Search relevant errors, Ax: Other errors.

5.2 ERROR CODE LIST

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5.3 CONNECTOR FUNCTION DESCRIPTION

Pin No.

1 2 3 4 5 6 7 8

B. UP GND ACC NC NC B.REM NC TEL

Pin No.

9 10 11 12 13 14 15 16

RLFLRL+ FL+ RRFRRR+ FR+

ANTENNA

REAR OUTPUT

WIRED REMOTE INPUT (EC)

1615141312111098765432

DEH-2050MPA/XN/EC

+ 42 hidden pages

Pioneer DEH-2050MPA, DEH-2050MPG, DEH-2090MP Service manual

SAFETY INFORMATION

CONTENTS

1. SERVICE PRECAUTIONS

1.1 SERVICE PRECAUTIONS

1.2 NOTES ON SOLDERING

2. SPECIFICATIONS

2.1 SPECIFICATIONS

2.2 DISC/CONTENT FORMAT

2.3 PANEL FACILITIES

2.4 PANEL FACILITIES

3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

3.2 PCB LOCATIONS

3.3 JIGS LIST

4. BLOCK DIAGRAM

4.1 BLOCK DIAGRAM

5. DIAGNOSIS

5.1 OPERATIONAL FLOW CHART

5.2 ERROR CODE LIST

5.3 CONNECTOR FUNCTION DESCRIPTION