Pioneer DEH-3200-UB, DEH-4250-SD, DEH-4290-SD 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 2009

CD RECEIVER

ORDER NO.

CRT4505

DEH-4250SD/XNES

DEH-4250SD

/XNES

DEH-4250SD/XNES1
DEH-4290SD/XNID
DEH-3200UB/XNUC

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

Model No. Order No. Mech. Module Remarks

CX-3269 CRT4488 S11STD-DOUT CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly

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

K-ZZZ NOV. 2009 Printed in Japan

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SAFETY INFORMATION

CAUTION

Where in a manufacturer’s service documentation, for example in circuit diagrams or lists
of components, a symbol is used to indicate that a specific component shall be replaced only
by the component specified in that documentation for safety reasons, the following symbol shall
be used:

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.

CAUTION:

USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

- 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.

CAUTION
CLASS 1M INVISIBLE LASER RADIATION WHEN OPEN. DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS

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

WARNING

This product may contain a chemical known to the State of California to cause cancer, or birth defects or
other reproductive harm.
Health & Safety Code Section 25249.6 - Proposition 65

WARNING!

The AEL (accessible emission level )of the laser power output is less than CLASS 1
but the laser component is capable of emitting radiation exceeding the limit for
CLASS 1.
A specially instructed person should do servicing operation of the apparatus.

Laser diode characteristics

Wave length : 785 nm to 814 nm
Maximum output : 1 190 µW(Emitting period : unlimited)

Additional Laser Caution

Transistors Q101 in PCB drive the laser diodes.
When Q101 is shorted between their terminals, the laser diodes will radiate beam.
If the top cover is removed with no disc loaded while such short-circuit is continued,
the naked eyes may be exposed to the laser beam.

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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.

DEH-4250SD/XNES

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CONTENTS

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

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

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

1.2 NOTES ON SOLDERING .......................................................................................................................... 6

2. SPECIFICATIONS ............................................................................................................................................ 7

2.1 SPECIFICATIONS...................................................................................................................................... 7

2.2 DISC/CONTENT FORMAT ........................................................................................................................ 9

2.3 PANEL FACILITIES.................................................................................................................................. 10

2.4 CONNECTION DIAGRAM ....................................................................................................................... 12

3. BASIC ITEMS FOR SERVICE........................................................................................................................ 17

3.1 CHECK POINTS AFTER SERVICING..................................................................................................... 17

3.2 PCB LOCATIONS .................................................................................................................................... 18

3.3 JIGS LIST ................................................................................................................................................ 19

3.4 CLEANING............................................................................................................................................... 19

4. BLOCK DIAGRAM.......................................................................................................................................... 20

5. DIAGNOSIS.................................................................................................................................................... 23

5.1 OPERATIONAL FLOWCHART ................................................................................................................ 23

5.2 ERROR CODE LIST................................................................................................................................ 24

5.3 CONNECTOR FUNCTION DESCRIPTION............................................................................................. 25

6. SERVICE MODE............................................................................................................................................ 26

6.1 DISPLAY TEST MODE ............................................................................................................................ 26

6.2 CD TEST MODE...................................................................................................................................... 27

7. DISASSEMBLY............................................................................................................................................... 28

8. EACH SETTING AND ADJUSTMENT ........................................................................................................... 35

8.1 CD ADJUSTMENT................................................................................................................................... 35

8.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT.................................................... 36

9. EXPLODED VIEWS AND PARTS LIST.......................................................................................................... 38

9.1 PACKING ................................................................................................................................................. 38

9.2 EXTERIOR(1) .......................................................................................................................................... 40

9.3 EXTERIOR(2) .......................................................................................................................................... 42

9.4 CD MECHANISM MODULE..................................................................................................................... 44

10. SCHEMATIC DIAGRAM ............................................................................................................................... 46

10.1 TUNER AMP UNIT 1/2 [MAIN] (GUIDE PAGE) .....................................................................................46

10.2 TUNER AMP UNIT 2/2 [MEDIA Ucom] (GUIDE PAGE) ........................................................................ 52

10.3 KEYBOARD UNIT.................................................................................................................................. 58

10.4 CD CORE UNIT(S11STD-DOUT).......................................................................................................... 60

10.5 SD UNIT................................................................................................................................................. 62

10.6 WAVEFORMS........................................................................................................................................ 63

11. PCB CONNECTION DIAGRAM ................................................................................................................... 66

11.1 TUNER AMP UNIT................................................................................................................................. 66

11.2 KEYBOARD UNIT.................................................................................................................................. 70

11.3 CD CORE UNIT(S11STD-DOUT).......................................................................................................... 72

11.4 SD UNIT................................................................................................................................................. 74

12. ELECTRICAL PARTS LIST .......................................................................................................................... 75

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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.

6. On CD Core Unit, actual cable colors and silk print are different.

7. When a CD-DA (regular music CD) is played in the CD test mode, its sound quality will be temporarily
deteriorated. The CD will then repeat normal, deteriorated, normal… playback.
This is due to the difference in the playback modes between the normal operation mode and the CD test
mode, and the interval of generating deteriorated mode and the time taken to return to the normal mode
depend on the error of each clock.
The time taken to turn to the deteriorated mode is at a minimum around 20 seconds while the time to return
to the normal mode is maximum 40 seconds approximately.
Make sure to check the sound quality in the normal operation mode.

Green Red
White Black

8. area and a heat sink becomes hot areas. Be careful not to burn yourself.

1. SERVICE PRECAUTIONS

1.1 SERVICE PRECAUTIONS

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1.2 NOTES ON SOLDERING

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.

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2. SPECIFICATIONS

2.1 SPECIFICATIONS

DEH-4250SD/XNES, DEH-4250SD/XNES1, DEH-4290SD/XNID

General

Rated power source..............14.4 V DC

(allowable voltage range:

10.8 V to 15.1 V DC)

Grounding system................. Negative type

Maximum current consumption

...............................................10.0 A

Backup current ..................... 5.0 mA or less

Dimensions (W × H × D):

DIN

Chassis.................. 178 mm × 50 mm × 162

mm

Nose....................... 188 mm × 58 mm × 24 mm

D

Chassis.................. 178 mm × 50 mm × 162

mm

Nose........................ 170 mm × 46 mm × 24 mm

Weight ...................................... 1. 3 kg

Audio

Maximum power output ...... 50 W × 4

50 W × 2/4 ohm + 70 W × 1/2
ohm (for subwoofer)

Continuous power output .. 22 W × 4 (50 Hz to 15 000

Hz, 5 % THD, 4 ohmload,
both channels driven)

Load impedance ................... 4 ohm to 8 ohm × 4

4 ohm to 8 ohm× 2 + 2 ohm × 1

Preout maximum output level

............................................... 2.2 V

Equalizer (5-Band Graphic Equalizer):

Frequency.......................100/315/1.25k/3.15k/8k Hz

Gain .................................. ±6 dB

HPF:

Frequency...................... 50/63/80/100/125 Hz

Slope............................... –12 dB/oct

Subwoofer (mono):

Frequency...................... 50/63/80/100/125 Hz

Slope............................... –18 dB/oct

Gain .................................. +6 dB to –24 dB

Phase ..............................Normal/Reverse

Bass boost:

Gain ................................. +6 dB to 0 dB

USB

USB standard specification

.............................................. USB 2.0 full speed

Maximum current supply ...500 mA

USB Class.............................. MSC (Mass Storage Class)

File system............................. FAT12, FAT 16, FAT32

MP3 decoding format ..........MPE G-1 & 2 Audio Layer 3

WMA decoding format ....... Ver. 7, 7.1, 8, 9, 10, 11 (2ch

audio)
(Windows Media Player)

AAC decoding format........... MP EG -4 AAC (iTun es en-

coded only) (.m4a)
(Ver. 8.2 and earlier)

WAV signal format................ Linear PCM & MS ADPCM

(Non-compressed)

SD

Compatible physical format

.............................................. Version 2.00

Maximum memory capacity

............................................. 32 G B (for SD and SDHC)

File system.............................. FAT12, FAT16, FAT32

MP3 decoding format ..........MPE G-1 & 2 Audio Layer 3

WMA decoding format ....... Ver. 7, 7.1, 8, 9, 1 0, 11 (2ch

audio)
(Windows Media Player)

AAC decoding format.......... MPEG -4 AAC (iTunes en-

coded only) (.m4a)
(Ver. 8.2 and earlier)

WAV signal format................ Linear PCM & MS ADPCM

(Non-compressed)

FM tuner

Frequency range................... 87.5 MHz to 108.0 MHz

Usable sensitivity................... 9 dB f (0.8 μV/75 ohm , mono,

S/N: 30 dB)

Signal-to-noise ratio............. 72 dB (IEC -A network)

AM tuner

Frequency range................... 531 kHz to 1 602 kHz (9 kHz)

530 kHz to 1640 kHz (10

kHz)

Usable sensitivity.................. 25 μ V (S/N: 20 dB)

Signal-to-noise ratio............. 62 dB (IEC -A network)

CD player

System ..................................... Compact disc audio system

Usable discs .......................... Compact disc

Signal-to-noise ratio.............. 94 dB (1 kHz) (IEC-A net-

work)

Number of channels ............ 2 ( stereo)

MP3 decoding format ..........MPEG-1 & 2 Audio Layer 3

WMA decoding format ....... Ver. 7, 7.1, 8, 9, 10, 11 (2ch

audio)

(Windows Media Player)

AAC decoding format.......... MPEG-4 AAC (iTunes en-

coded only) (.m4a)

(Ver. 8.2 and earlier)

WAV signal format................ Linear PCM & MS ADPCM

(Non-compressed)

DEH-4250SD/XNES

ES, ES1

Infrared remote control

Wavelength............................. 940 nm ± 50 nm

Output ......................................typ; 12 mw/sr per Infrared

LED

Note

Specifications and the design are subject to mod­ifications without notice.

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Signal-to-noise ratio............. 72 dB (IHF-A network)

AM tuner

Frequency range................... 530 kHz to 1 710 kHz

Usable sensitivity.................. 25 μ V (S/N: 20 dB)

Signal-to-noise ratio............. 62 dB (IHF-A network)

CEA2006 Specifications

Power out put ......................... 14 W RMS × 4 Channels (4

ohm and

1 % THD+N)

S/N ratio .................................. 91 dBA (reference: 1 W into

4 ohm)

Note

Specifications and the design are subject to mod­ifications without notice.

General

Power source..........................

14.4 V DC (10.8 V to 15.1 V DC

allowable)

Grounding system................. Negative type

Maximum current consumption

...............................................10.0 A

Dimensions (W × H × D):

DIN

Chassis.................. 178 mm × 50 mm × 162

mm

(7 in. × 2 in. × 6-1/2 in.)

Nose....................... 188 mm × 58 mm × 24 mm

(7-3/8 in.× 2-1/4 in.× 1 in.)

D

Chassis.................. 178 mm × 50 mm × 162

mm

(7 in.× 2 in.× 6-1/2 in.)

Nose....................... 170 mm × 46 mm × 24 mm

(6-3/4 in.× 1-7/8 in.× 1 in.)

Weight ..................................... 1. 3 kg(2.9 lbs)

Audio

Maximum power output ....... 50 W × 4

50 W × 2/4 ohm + 70 W × 1/2

ohm (for subwoofer)
Continuous power output ... 22 W × 4 (50 Hz to 15 000

Hz, 5 % THD, 4 ohm load,

both channels driven)

Load impedance ................... 4 ohm to 8 o hm × 4

4 ohm to 8 ohm × 2 + 2 ohm × 1
Preout maximum output level

............................................... 2.2 V

Equalizer (5-Band Graphic Equalizer):

Frequency.......................100/315/1.25k/3.15k/8k Hz

Gain ................................. ±12 dB

HPF:

Frequency...................... 50/63/80/100/125 Hz

Slope................................–12 dB/oct

Subwoofer (mono):

Frequency.......................50/63/80/100/125 Hz

Slope................................–18 dB/oct

Gain ................................. +6 dB to –24 dB

Phase ..............................Normal/Reverse

Bass boost:

Gain ................................. +12 dB to 0 dB

CD player

System ..................................... Compact disc audio system

Usable discs ...........................Compact disc

Signal-to-noise ratio............. 94 dB (1 kHz) (IHF-A net-

work)

Number of channels ............ 2 ( stereo)

MP3 decoding format ......... MPEG-1 & 2 Audio Layer 3

WMA decoding format ....... Ver. 7, 7.1, 8, 9, 10, 11 (2ch

audio)

(Windows Media Player)

AAC decoding format.......... MPEG -4 AAC (iTunes en-

coded only) (.m4a)
(Ver. 8.2 and earlier)

WAV signal format............... Linear PCM & MS ADPCM

(Non-compressed)

USB

USB standard specification

............................................... USB 2.0 full speed

Maximum current supply .... 500 mA

USB Class............................... MSC(Mass Storage Class)

File system.............................. FAT12, FAT16, FAT32

MP3 decoding format ..........MPE G-1 & 2 Audio Layer 3

WMA decoding format ....... Ver. 7, 7.1, 8, 9, 1 0, 11 (2ch

audio)
(Windows Media Player)

AAC decoding format.......... MPEG -4 AAC (iTunes en-

coded only) (.m4a)
(Ver. 8.2 and earlier)

WAV signal format................ Linear PCM & MS ADPCM

(Non-compressed)

FM tuner

Frequency range................... 87.9 MHz to 107.9 MHz

Usable sensitivity.................. 9 dB f (0.8 μV/75 ohm , mono,

S/N: 30 dB)

Backup current ...................... 5.0 mA or less

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DEH-4200SD

2.2 DISC/CONTENT FORMAT

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2.3 PANEL FACILITIES

Head unit

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dec

abfgh

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i

traPtraP

1 SRC/ OFF a 6 / PAUSE

2 S.Rtrv b 1 to 6

3

(list) c 3 /

4

MULTI-CONTROL
(M.C.)

d 2 /

5 Disc loading slot e 1/iPod

6

(eject) f / DISP/SCRL .

7 USB port g CLK / DISP OFF

8

AUX input jack (3.5
mm stereo jack)

h BAND / ESC

9 Detach button i

SD memory card slot

You can see the SD
memory card slot if
you remove the
front panel.

CAUTION

Use an optional Pioneer USB cable (CD-U51E) to
connect the USB audio player/USB memory to
the USB port. Since the USB audio player/USB
memory is projected forward from the unit, it is
dangerous to connect directly.
Do not use the unauthorized product.

Remote control

Part Operation

j VOLUME

Press to increase or decrease vo­lume.

k MUTE

Press to mute. Press again to un­mute.

l

/ / /

Press to perform manual seek
tuning, fast forward, reverse and
track search controls. Also used
for controlling functions.

m AUDIO Press to select an audio function.

n DISP/SCRL

Press to select different displays.
Press and hold to scroll through
the text information.

o

Press to pause or resume.

p FUNCTION

Press to select functions.
Press and hold to recall the initial
setting menu when the sources
are off.

q

LIST /
ENTER

Press to display the list depending
on the source.
While in the operating menu,
press to control functions.

Only for

ES, ES1, ID .

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d3

Display indication

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4 6 8 a

Indicator State

Tuner: band and frequency
Built-in CD, external storage de­vice (USB, SD) and iPod: elapsed
playback time and text informa­tion

The disc (track) artist name is dis­played.
Artist search refinement on the
iPod browsing function is in use.

The disc (album) name is dis­played.
Album search refinement on the
iPod browsing function is in use.

The track (song) name is dis­played.
A playable audio file has been se­lected while operating the list.
Song search refinement on the
iPod browsing function is in use.

An upper tier of folder or menu
exists.

1

2

3

4

5

Main dis­play sec­tion

(artist)

(disc)

(song)

Shuffle or shuffle all function is
on while the iPod source is being
selected.

The sound retriever function is
on.

CTRL (control mode) is set to
iPod.

Only for ES, ES1, ID
SD/SDHC memory card is in­serted.

c

fle)

d

(sound re­triever)

e iPod

f

memory
card)

(shuf-

(SD

Fastening the front panel

If you do not plan to detach the front panel,
the front panel can be fastened with supplied
screw.

ES, ES1, ID
Service Screw

CXX2204

UC
Screw

BPZ20P060FTC

6

7

8 LOC The local seek tuning is on.

9

a

b

(list) The list function is operated.

(stereo)

(folder re­peat)

(folder ran­dom)

A lower tier of folder or menu ex­ists.
It flashes when a song/album re­lated to the song currently playing
is selected from iPod.

The selected frequency is being
broadcasted in stereo.

Folder repeat is on.
When repeat function is on, only

is displayed.

Folder random is on.
When random function is on, only

is displayed.

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2.4 CONNECTION DIAGRAM

1. This product

3. Front output

5. Fuse (10 A)

2. Rear output or

subwoofer output

4. Wired remote input

Hard-wired remote control

adaptor can be connected

(sold separately).

6. Antenna jack

7. Yellow

Connect to the constant 12 V supply terminal.

8. Red

Connect to terminal controlled by

ignition switch (12 V DC).

9. Black (chassis ground)

Connect to a clean, paint-free metal location.

thgiR.61tfeL.51

22. With a 2 speaker system, do not connect

anything to the speaker leads that are

not connected to speakers.

14. Front speaker

21. Rear speaker

10. White 12. Gray

13. Gray/black11. White/black

17. Green 19. Violet

18. Green/black 20. Violet/black

14. Front speaker

21. Rear speaker

23. To rear output or

subwoofer output

26. Power amp

(sold separately)

25. Connect with RCA cables

(sold separately)

24. To front output

26. Power amp

(sold separately)

29. Perform these connections

when using the optional

amplifier.

28. System remote control

27. Blue/white

Connect to system control terminal of the

power amp or auto-antenna relay control

terminal (max. 300 mA 12 V DC).

rekaepstnorF.41rekaepstnorF.41

30. Rear speaker

or subwoofer

30. Rear speaker

or subwoofer

DEH-4250SD/XNES, DEH-4250SD/XNES1

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)

27. Blue/white

3. Front output

10. White 12. Gray

Connect to system control

terminal of the power amp or

auto-antenna relay control

terminal (max. 300 mA 12 V DC).

14. Front speaker

13. Gray/black11. White/black

14. Front speaker

15. Left 16. Right

32. Subwoofer (4

17. Green 19. Violet

18. Green/black 20. Violet/black

32. Subwoofer (4 )

) 2

(4

35. Subwoofer

), be sure to connect

17. Green 19. Violet

with Violet and Violet/black leads of this unit.

Do not connect anything with Green and Green/black leads.

18. Green/black 20. Violet/black

33. When using a subwoofer of 70 W (2

34. Not used.

subwoofer output

2. Rear output or

1. This product

Hard-wired remote control

4. Wired remote input

5. Fuse (10 A)

6. Antenna jack

adaptor can be connected

(sold separately).

Connect to the constant 12 V supply terminal.

7. Yellow

Connect to terminal controlled by

ignition switch (12 V DC).

8. Red

9. Black (chassis ground)

Change the initial setting of this unit.

Connect to a clean, paint-free metal location.

The subwoofer output of this unit is monaural.

31. Note

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Connect with RCA cables
(sold separately)

Rear output or
subwoofer output

This product

Antenna jack

Fuse (10 A)

Blue/white
Connect to system control terminal of the
power amp or aut o-antenna relay control
terminal (max. 300 mA 12 V DC).

Yellow
Connect to the constant 12 V
supply terminal.

Red
Connect to terminal controlled
by ignition switch (12 V DC).

Black (chassis ground)
Connect to a clean, paint-free
metal location.

System remote control

Left Right

Perform these connections when using
the optional amplifier.

White/black

Violet/black

Violet

With a 2 speaker system, do not connect
anything to the speaker leads that are not
connected to speakers.

Front speaker

White

Gray/black

Gray

Green/black

Green

Rear speaker

Wired remote input
Hard-wired remote control adaptor
can be connected (sold separately).

Front output

Power amp
(sold separately)

Power amp
(sold separately)

Front speaker

Rear speaker

Front speaker

Rear speaker

Front speaker

Rear speaker

DEH-4290SD/XNID

14

DEH-4250SD/XNES

5678

56

7

8

C

D

F

A

B

E

DEH-3200UB/XNUC

Power amp

(sold separately)

Power amp

(sold separately)

Connect with RCA cables

(sold separately)

Rear speaker

or subwoofer

Perform these connections

when using the optional

amplifier.

System remote control

Front speaker

To front output

Front output

Rear output or subwoofer output

This product

Fuse (10 A)

To rear output

Wired remote input

Hard-wired remote control

adaptor can be connected

or subwoofer

output

(sold separately).

Blue/white

Connect to system control terminal of the power

amp or auto-antenna relay control terminal (max.

300 mA 12 V DC).

Rear speaker

Front speaker

White Gray

or subwoofer

RightLeft

Rear speaker

Gray/blackWhite/black

Green Violet

Front speaker

With a 2 speaker system, do not

connect anything to the speaker leads

that are not connected to speakers.

Green/black Violet/black

Antenna jack

Yellow

When not connecting a rear speaker lead to a subwoofer

Connect to the constant 12 V supply terminal.

DEH-4250SD/XNES

Red

Connect to terminal controlled by

ignition switch (12 V DC).

Black (chassis ground)

Connect to a clean, paint-free metal location.

Front speaker

Rear speaker

15

1234

1234

C

D

F

A

B

E

When using a subwoofer without using the optional amplifier

Note

Change the initial setting of this unit.

The subwoofer output of this unit is monaural.

Yellow

Connect to the constant 12 V supply terminal.

Red

Connect to terminal controlled by ignition switch (12 V DC).

Black (chassis ground)

Connect to a clean, paint-free metal location.

This product

Front output

Rear output or subwoofer output

Antenna jack

Wired remote input

Hard-wired remote control

adaptor can be connected

(sold separately).

Fuse (10 A)

Left Right

Front speakerFront speaker

White Gray

Gray/blackWhite/black

Green Violet

Green/black Violet/black

Green Violet

Green/black Violet/black

Subwoofer (4

4(Subwoofer) )

When using a subwoofer of 70 W (2

), be sure to connect

with Violet and Violet/black leads of this unit.

Do not connect anything with Green and Green/black leads.

Subwoofer

(4

)x 2

Not used.

Blue/white

Connect to system control

terminal of the power amp or

auto-antenna relay control

terminal (max. 300 mA 12 V DC).

16

DEH-4250SD/XNES

5678

56

7

8

C

D

F

A

B

E

demrifnocebotmetIserudecorP.oN

1 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.

2 CD Play back a CD.

(Track search)

No malfunction on display, audio and
operation.

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.

retfaecnaraeppastinotridrosehctarcsoNkcehcecnaraeppA5

receiving it for service.

Item to be checked regarding audio

3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

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

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

Distortion
Noise

Volume too low
Volume too high
Volume fluctuating
Sound interrupted

DEH-4250SD/XNES

17

1234

1234

C

D

F

A

B

E

3.2 PCB LOCATIONS

A

B

Keyboard Unit

D

SD Unit

CD Core Unit (S11 STD-DOUT)

C

Tuner Amp Unit

(DEH-4250SD/XNES)
(DEH-4250SD/XNES1)
(DEH-4290SD/XNID)

A:DEH-4250SD/XNES

B:DEH-4250SD/XNES1

C:DEH-4290SD/XNID

D:DEH-3200UB/XNUC

Unit Number : CWN4805(A,B,C)

Unit Number : CWN5219(D)

Unit Name : Tuner Amp Unit

Unit Number : CWN4813(A,B,C)

Unit Name : Keyboard Unit

Unit Number : CWN5220(D)

Unit Name : Keyboard Unit

Unit Number : CWX3774

Unit Name : CD Core Unit(S11STD-DOUT)

Unit Number : CWN4816(A,B,C)

Unit Name : SD Unit

18

DEH-4250SD/XNES

5678

56

7

8

C

D

F

A

B

E

- 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

e

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

3.3 JIGS LIST

m

3.4 CLEANING

No.

rease No.

emarks

emarks

DEH-4250SD/XNES

19

1234

1234

C

D

F

A

B

E

4. BLOCK DIAGRAM

JA401

JA661

ANTENNA

SL

FM/AM TUNER UNIT

VCC

FMANT

AMANT

1

3

5

CE2

6

CE1

8

CK

9

DI

10

DO

14

4

SYS8V

TUNER AMP UNIT

A

ROM_VDD

13

VDD3.3

VDD_3.3

17

Lch TUNL

23

SYS8V

3

1

NJM2885DL1-33

IC431

TUNER3V REG.

USB5V DD5V

5

4

R5523N001B

IC151

USB5V REG.

VOUTVIN

1

EN

3

FLG

DD5V BUP

21

BD9781HFP

IC161

DD5V REG.

SW VIN

7

EN

VDD3.3

32

92

KEYAD

34

MED_RX

33

MED_TX

43

MEDMUTE

41

MEDSTBY

KEYD

63

95

SL

10

RESET

64

TUNPCE1

TUNPCE2

65

TUNPCK

66

TUNPDI

67

TUNPDO

36

USBCTL

23

USBFLG

24

80

SDCTL

SYNC

12

S-80827CNNB-B8M

IC651

RESET

VDD3.3

S651

R5S7262ZD144FPU

IC501

CN701

MEDIA uCOM

114

SD_CD

113

CDRST

RESET

16

15

8

9

VDD

63

SYS_TXD

61

59

58

BRST

MEDIAMUTE

SYS_RXD

71

70

DM

DP

WIRED REMOTE

2,3

1

KEYAD

KEYD

2

3
1

GND

VDD3.3

VDD5

1

5

S-113 2B33-U5

IC901

VDD3.3V REG.

VOUTVIN

4

SW

SD_DATA0 - SD_DATA3, SD_CLK, SD_CMD

CN781

SW33V

SD_CD

4

9

DAT0 - DAT3, CLK, CMD

CN1203

CN1202

VDD

CD

VDD

CD

4

12

7

2

MED3.3V

Q781

Q783

Q782

SD UNIT

D

SD3.3V REG.

C

PICKUP UNIT
(P10.5)(SERVICE)

CD CORE UNIT(S11STD-DOUT)

LD

MD

LD-

MD

HOLOGRAM

UNIT

LD+

FOCUS ACT.

TRACKING ACT.

FOP

TOP

VREF

FOM

TOM

VCC

VCC

15

5

14

15

5

212

1

14

88

33

44

1212

RF AMP, CD DECODER, MP3&WMA DECODER

DIGITAL SERVO/DATA•PROCESSOR

CPU, USB HOST CONTROLLER

PE5706A

IC201

Q101

IC301

BA5839FP

ACTUATOR/

MOTOR DRIVER

CN101

TD,FD

AC,BD,E,F

1

2

VDD

TOP

FOP

REFO

93

FOM

TOM

PD

REFO

V+3A

LD+

GND

SPINDLE

MOTOR

LOADING/CARRIAGE

MOTOR

21

9

SD,MD

40

39

22

41

15

VO3+

16

VO3-

17

VO4+

18

VO4-

11

VO1-

14

VO2+

12

VO1+

13

VO2-

SOM

SOP

LCOM

LCOP

CNT

MUTE

LOIN

S903

S901

S905

DSCSNS HOME8SNS

35

37

38

LD

PD

CONT

CLCONT

HOME

8SNS

DSCSNS

RESET

REFOUT

LOEJ

PUEN

CN701

2

VD

1

Q102

54

V+3A

VDD

CD DATA (CDSRQ,CDSTBY,SKIP,

29

RESET

SCL,SDA,DATA,BCLK,LRCK,WAIT)

9

8

VDD

CD DATA (CDSRQ,CDSTBY,SKIP,
SCL,SDA,DATA,BCLK,LRCK,WAIT)

M

M

MEDRST

21

CWW1967

IC571

FLASH ROM 16Mbit

12

RESET

43

RESET

IC60

COMPU

PEG640

SYSTEM M

138

DACLRCK

137

DACDATA

139

105

136

DACCLK

DACDATA1

DACSCK

WM876

IC18

DAC

1

LRCIN

2

DIN

3

BCKIN

12

DEEMPH

14

MCLK

Q591

148

CP_SDA

149

CP_SCL

112

CPRST

111

CPPWR

MED3.3V

A B

:DEH-4250SD/XNES
:DEH-4250SD/XNES1

A

:DEH-4290SD/XNID
:DEH-3200UB/XNUC

C

B

VD

VD

85

VDSENS

BUP

Q751

Q752

MECHA VD

19

VDCONT

20

DEH-4250SD/XNES

5678

56

7

8

C

D

F

A

B

E

17 DSENS

DSENS

CN801

SOURCE

SW3.3V

KYDT

DPDT

ROT1

ROT0

3

8

11

16

19

4

6

10

12

14

D+

D-

15

13

VBUS

USB5V

AUXL

OEL+B

SYS8V BUP

21

NJM2388F84

IC911

SYS8V REG.

VOUTVIN

4

CONTROL

BUP

PM9012A

IC201

E.VOL

25

OUTFL

26

FL

RL

OUTRL

36TUNL

35CDL

S5B+L

27 SWL

OUTPL

39AUXL

S1Q+L

S4B-L

21

22

CLK

STB

23

DATA

PA2 030A

IC351

AMP

9

OUT1(+)

7 FL2

OUT1(-)

12RL

11FL

IN1

FL

5 RL1

OUT2(+)

3 RL2

OUT2(-)

25 BRE1

H-SW/VDS-DET

IN2

22

MUTE

4

STBY

48

MUTE

46

SYSPW

32

92

KEYAD

16

18

40

TELIN

34

MED_RX

33

MED_TX

43

MEDMUTE

41

MEDSTBY

KEYD

63

95

SL

ASENS

10

RESET

BSENS

64

TUNPCE1

TUNPCE2

65

TUNPCK

66

TUNPDI

67

TUNPDO

55

VST

54

VCK

53

VDT

36

USBCTL

23

USBFLG

24

80

SDCTL

SYNC

JA301

JA981

FL1

1

3

5

7

18

14

ACC1

13

TEL1

9

6

FL

5

SWLSWL

Q303

Q301

Q361

Q381

Q382

VDD5

BUP

BUP

Q363

RCA OUT

MED3.3V

DD5V

1 6

S-1172B33-E6

IC581

MED3.3V REG.

VOUTVIN

3

ON/OFF

MED1.2V

4

3

BH12PB3WHFV

IC583

MED1.2V REG.

VOUTVIN

1

STBY

MEDRST

21

IC601

COMPUTER

PEG640A8

SYSTEM MICRO

BUP

Q831

Q832

BUP VDD5

Q901

Q902

45

DALMON

50

OELPW

VDD5V REG.

OEL+B

OEL+B

90 SOURCE

30

KYDT

SSENS

29

VDD3.3

Q841

Q842

BUP

Q821

Q822

47

SWVDD

49

ILMPW

DPDT

1

ROT1

2

ROT0

ILM+B

SWVDD

ILM+B

5

1

NJM2872F05

IC182

DAC5V REG.

SYS8V

WM8761GED

IC181

DAC

9

VOUTL

CDL

1

LRCIN

2

DIN

3

BCKIN

12

DEEMPH

14

MCLK

8

VDD

VIN

3

CONT

VOUT

Q591

341S2162

IC591

iPod CP

13

I2C_SDA/SPI_SOMI

12

I2C_SCL/SPI_SIMO

4

nRESET

5

VCC

2

MODE1/SPI_nSS

MED3.3V

Q921

BSENS

ASENS

SOURCE CONNECTOR

C

TELMUTE

Q951

3

16

KEYBOARD UNIT

B

CN1801

JA1801

19

AUXL

4

SOURCE

SW3.3V

CN1802

4

D+

3

D-

2

US5V

SW3.3V

6

KYDT

10

DPDT

ROT0

14

15

D+

13

D-

S1801

ILLUMI

13

KYDT

12

DPDT

MCLK

R-ILM

14

19

XREST

11

XCMD

20

DCLK

1

DOUT

2

ADKEY1

17

REM

10

ADKEY2

15

CN1921

10

XI

7

XCS

6

XRES

5

XCMD

4

SCL

3

SI_RX

KEY MATRIX

13

GP1UXC14RK

IC1891

S1811

ROTARY COMMANDER

ROT112Phase_A

Phase_B

18

ADKEY0

ILM+B

IC1901

COMPUTER

PEG642A8

MICRO

CONTROL SENSOR

REMOTE

FRONT AUX

AUXL

AUXR

AUXG

3

2

1

USB

OEL MODULE

8

11

OEL+B

VBUS(US5V)

SW3.3V

12

VAH

13

8

VDD

VKH

19

VDCONT

20

20

DSEN

DSENS

B.UP

FUSE
10 A

15

17

DEH-4250SD/XNES

21

1234

1234

C

D

F

A

B

E

FM/AM TUNER UNIT

FMRF

ANT adj

RF adj

FM ANT

T51

CF52

RFGND

OSCGND

DGND

AUDIOGNDNCVCC

VDD_3.3

3.3V

2.5V

IC4

2.5V

IC2

NC

CE2

ROM_VDD

SL

DI

CK

CE1

NC

DO

NCNCNC

NC

76 13 5 1098 11 14 18 19 20 21

1

3

212 1522 16 417

IC1

3.3V

AM ANT

FMRF

ATT

LPF

OSC

IC3

EEPROM 5.0V

IC5

ATT

MIXER, IF AMP

DET, FM MPX

23

Lch

A

A

A

A

3.3V→2.5V

5V→3.3V

22

DEH-4250SD/XNES

5678

56

7

8

C

D

F

A

B

E

VCC1 = 3.3 V

Pin 14

BSENS

Pin 16

ASENS

Pin 18

BSENS = L

Starts

communication

with Grille

microcomputer.

SWVDD <- H

Pin 47

Source keys

operative

Source ON

SYSPW <- H

Pin 46

500 ms

500 ms

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

In case of the above signal, the communication
with Grille microcomputer may fail.
If the time interval is not 500 msec, the oscillator
may be defective.

Power ON

ASENS = L

DSENS

Pin 17

5. DIAGNOSIS

5.1 OPERATIONAL FLOWCHART

DEH-4250SD/XNES

23

1234

1234

C

D

F

A

B

E

5.2 ERROR CODE LIST

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

ERROR-xx ERR-xx E-xx

(2) LIST OF CD ERROR CODES (Error Mode: 0xFD)

Code Classification

Error code to be displayed

Details and possible causes

10 Servo Carriage Home NG The CRG cannot move toward the inner track.

The CRG cannot move from the inner track.

--> Defective HOME SW; Failure in CRG movement.

7

Servo TOC reading NG TOC information cannot be read.

--> The partial disk or TOC content is illegal.

11

Servo Focus Search NG Focusing not available

--> Disc placed upside-down; Stains on the disc; excessive vibration.

17 Servo Setup NG AGC protection does not work. Focus can be easily lost.

--> Scratches or stains on the disc; excessive vibration.

15 Servo Failure in RF data RF not read

--> A CD-R disc that does not contain data loaded

--> A CD-RW disc that does not contain data loaded

12

Servo Spindle Lock NG

Subcode NG
RF-amp NG

Spindle not locked. Subcode not readable.
Proper RF AMP gain not obtained.

--> Defective spindle; Scratches or stains on the disc; excessive vibration.

-->

A CD-R disc that does not contain data loaded, or in a rare case, disc placed upside-down.

--> CD signal error.

30

Servo Search Time Out Failed to reach a target address

--> CRG tracking error; Scratches on the disc; Stains on the disc

50 Mechanism Failure in ejection

Load NG

Disc ejection not completed
Disc loading not completed

--> A foreign object inserted in the mechanism; Disc jammed.

51

Mechanism Failure in retried

turning for ejection

Disc could not be ejected even after disc turning had been retried.

--> A foreign object inserted in the mechanism; Disc jammed.

NOTES

• Indications of error codes are available only during disc operations, because CD operations are
unavailable if a mechanical error is generated.

• If the TOC cannot be read, this is not processed as an error, and operation continues accordingly.

• If you design a new head unit, be sure to use one of the display formats indicated in “Display example of
the main unit.”

ERROR CODES

(1) DISPLAY METHOD

If “0xFD” error mode is displayed in CD MODE (CD MODE area for display), an error code will be displayed in the MIN (minute
display) and SEC (second display) areas.

The same code is displayed in the MIN and SEC areas.
The TNO area is blank (#0FFH), as it conventionally was.

• Display example of the main unit
Depending on the display capability of LCDs, the display format varies, as shown below. XX denotes an error number.
Note: In a case of an OEM product, the error display format is subject to the specifications used by the equipment
manufacturer.

If a CD memory device is inoperable, or operation of such media is stopped by an error, the error mode is established and a
cause of the error is displayed by an error code. Indication of error codes is intended to reduce the number of calls from
customers and facilitate failure analysis and repair work in servicing.

• The 2 high-order digits of an error code denote the main
classification, shown below.
0x: Servo-related errors
1x: Servo-related errors
3x: Servo-related errors
5x: Mechanism-related errors

• How to restore from each error is shown below.
0x, 1x and 3x: ACC-OFF then ON, CD-OFF then ON,
Disc ejection
5X: ACC-OFF then ON, Disc ejection, Disc reloading

24

DEH-4250SD/XNES

5678

56

7

8

C

D

F

A

B

E

R/SW, F

OUTPUT

ANTENNA

1 FL+
2 FR+
3 FL­4 FR­5 RL+
6 RR+
7 RL­8 RR-

9 NC
10 NC
11 NC
12 NC
13 ACC
14 B.REM
15 B.UP
16 GND

16

14

12

10 8

6

42

15

13

11

9 7

5

31

WIRED REMOTE

CONTROL

5.3 CONNECTOR FUNCTION DESCRIPTION

DEH-4250SD/XNES

25