PIONEER DEH-20UB/XS/UC Service Manual

Cover page of PIONEER DEH-20UB/XS/UC Service Manual

Service Manual for PIONEER DEH-20UB/XS/UC, downloadable as a PDF file.

We also have owner's manual to this model.

Manual details

  • Immediate download after payment.
  • Delivered as a PDF file.
  • The manual has 73 pages
  • File size: 12.89 MB
  • Available language versions: English
  • Different language versions may vary sligthly in file size and page count.

We guarantee that...

  • our manuals are complete,
  • the manual includes circuit diagrams,
  • our manuals are checked with antivirus,
  • We'll issue refund if the manual is damaged, incomplete or unreadable (our refund policy)

Sample pages

Thumbnail of page 1Thumbnail of page 2Thumbnail of page 3Thumbnail of page 4
Thumbnail of page 5Thumbnail of page 6Thumbnail of page 7Thumbnail of page 8
Thumbnail of page 9
background image
ORDER NO.
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 2008
DEH-20UB/XS/UC
CRT4228
CD RECEIVER
DEH-20UB
/XS/UC
DEH-2150UBG/XS/ES
DEH-2150UB/XS/ES
DEH-2150UB/XU/CN5
This service manual should be used together with the following manual(s):
Model No.
Order No.
Mech.Module
Remarks
CX-3240
CRT4050
S10.5COMP2-iPod/USB
CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly
For details, refer to "Important Check Points for Good Servicing".
K-ZZZ. OCT. 2008 Printed in Japan
background image
ORDER NO.
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 2008
DEH-20UB/XS/UC
CRT4228
CD RECEIVER
DEH-20UB
/XS/UC
DEH-2150UBG/XS/ES
DEH-2150UB/XS/ES
DEH-2150UB/XU/CN5
This service manual should be used together with the following manual(s):
Model No.
Order No.
Mech.Module
Remarks
CX-3240
CRT4050
S10.5COMP2-iPod/USB
CD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly
For details, refer to "Important Check Points for Good Servicing".
K-ZZZ. OCT. 2008 Printed in Japan
background image
DEH-20UB/XS/UC
2
12
3
4
12
3
4
C
D
F
A
B
E
SAFETY INFORMATION
CAUTION
WARNING
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 product contains certain electrical parts contain chemicals which are known to the State of
California to cause cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 - Proposition 65
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 safety 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 safety, 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.
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.
- 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.
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.
background image
DEH-20UB/XS/UC
3
5
678
56
7
8
C
D
F
A
B
E
[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.
background image
DEH-20UB/XS/UC
4
12
3
4
12
3
4
C
D
F
A
B
E
CONTENTS
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 ........................................................................................................................ 9
2.3 PANEL FACILITIES .................................................................................................................................. 10
2.4 CONNECTION DIAGRAM ....................................................................................................................... 13
3. BASIC ITEMS FOR SERVICE........................................................................................................................ 14
3.1 CHECK POINTS AFTER SERVICING..................................................................................................... 14
3.2 PCB LOCATIONS .................................................................................................................................... 15
3.3 JIGS LIST ................................................................................................................................................ 16
3.4 CLEANING............................................................................................................................................... 16
4. BLOCK DIAGRAM.......................................................................................................................................... 18
4.1 BLOCK DIAGRAM ................................................................................................................................... 18
5. DIAGNOSIS.................................................................................................................................................... 21
5.1 OPERATIONAL FLOWCHART ................................................................................................................ 21
5.2 ERROR CODE LIST ................................................................................................................................ 22
5.3 CONNECTOR FUNCTION DESCRIPTION ............................................................................................. 24
6. SERVICE MODE ............................................................................................................................................ 25
6.1 DISPLAY TEST MODE ............................................................................................................................ 25
6.2 CD TEST MODE ...................................................................................................................................... 26
7. DISASSEMBLY............................................................................................................................................... 27
8. EACH SETTING AND ADJUSTMENT ........................................................................................................... 30
8.1 CD ADJUSTMENT................................................................................................................................... 30
8.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT.................................................... 31
9. EXPLODED VIEWS AND PARTS LIST.......................................................................................................... 34
9.1 PACKING ................................................................................................................................................. 34
9.2 EXTERIOR (1) ......................................................................................................................................... 36
9.3 EXTERIOR (2) ......................................................................................................................................... 38
9.4 CD MECHANISM MODULE..................................................................................................................... 40
10. SCHEMATIC DIAGRAM ............................................................................................................................... 42
10.1 TUNER AMP UNIT(GUIDE PAGE) ........................................................................................................ 42
10.2 KEYBOARD UNIT.................................................................................................................................. 48
10.3 CD MECHANISM MODULE(GUIDE PAGE) .......................................................................................... 50
10.4 WAVEFORMS ........................................................................................................................................ 56
11. PCB CONNECTION DIAGRAM ................................................................................................................... 60
11.1 TUNER AMP UNIT................................................................................................................................. 60
11.2 KEYBOARD UNIT.................................................................................................................................. 64
11.3 CD CORE UNIT(S10.5COMP2-USB-C3) .............................................................................................. 66
12. ELECTRICAL PARTS LIST .......................................................................................................................... 68
background image
DEH-20UB/XS/UC
5
5
678
56
7
8
C
D
F
A
B
E
1. SERVICE PRECAUTIONS
1.1 SERVICE PRECAUTIONS
1.2 NOTES ON SOLDERING
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.

Reviews

There are no reviews of this manual yet.

Related Products

Cover page of PIONEER DEH-5/XU/UC Owner's Manual

This manual has 52 pages, file size: 0.73 MB. It's available in languages: French, English, Spanish.

Cover page of PIONEER DJM-909/WYXJ4 Owner's Manual

This manual has 140 pages, file size: 3.96 MB. It's available in languages: French, English, Spanish, Dutch, German, Italian.

Cover page of PIONEER SD-P5065-Q Service Manual

This manual has 287 pages, file size: 89.32 MB. It's available in languages: English.

Cover page of PIONEER DEH-P4500MP/XIN/UC Owner's Manual

This manual has 136 pages, file size: 1.71 MB. It's available in languages: French, English, Spanish.

Cover page of PIONEER SE-CL21M-J-E/ZCEW5 Owner's Manual

This manual has 2 pages, file size: 4.73 MB. It's available in languages: Polish, Portuguese, Swedish, Greek, Spanish, Dutch, Czech, Slovenian, Italian, Turkish, Norwegian, Hungarian.