For details, refer to "Important Check Points for Good Servicing".
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 2004
K-ZZA. DEC. 2004 Printed in Japan
1234
SAFETY INFORMATION
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
A
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.
1. 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 13cm from the focus lens must be kept.
B
2. During repair or tests, do not view laser beam for 10 seconds or longer.
2. A “CLASS 1 LASER PRODUCT” label is affixed to the
bottom of the player.
3. The triangular label is attached to the mechanism
unit frame.
CLASS 1
LASER PRODUCT
C
D
4. Specifications of Laser Diode
Specifications of laser radiation fields to which human access is possible during service.
Wavelength = 800 nanometers
- 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
E
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.
F
2
1234
DEH-4700MP/XU/EW
5678
[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.
0 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.
A
B
C
D
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.
3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance.
Make sure the proper amount is applied.
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.
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.
4.3 CD CORE UNIT(S10.1) ........................................................................................................................... 38
5. ELECTRICAL PARTS LIST ............................................................................................................................ 40
6.1 CD ADJUSTMENT................................................................................................................................... 45
6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT....................................................47
7.2.1 IC ..........................................................................................................................................................54
OTES : • Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List.
• The > mark found on some component parts indicatesthe importance of the safety factor of the part.
A
Therefore, when replacing, be sure to use parts of identical designation.
• Screw adjacent to mark on the product are used for disassembly.
• For the applying amount of lobricants or glue, follow the instructions in this manual.
(In the case of no amount instructions,apply as you think it appropriate.)
The > mark found on some component parts indicates
the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of
identical designation.
DEH-4700MP/XU/EW
B
CN1801
5678
A-b
332/16
TUNER AMP UNIT
A
FM: 32.6dB
AM: 23.1dB
CD: 36.45dB
>
CEK1286
3A
REAR
L CH
REAR
R CH
A
B
C
source
TROLLER
dsens
bsens
asens
STRKEY2
isens
bsrq
RECEIVE
WIRED REMOTE CONTROL
CEK1208
>
10A
D
E
RR
RR
+
-
BACK
FR
FR
UP
+
-
B.
FL
FL
REM
+
-
RL
RL
ACC
GND
+
-
56
DEH-4700MP/XU/EW
F
A
7
8
15
A
B
A-b
1234
asens
bsens
dsens
source
VSS
AVDD
AVREF1
DISCSENS
STRKEY1
2322212019181716151413121110987654321
C
CN901
C
A-b
A-a
A-a
D
471/16
E
F
A-a
16
1234
DEH-4700MP/XU/EW
5678
A
1
2
A-b
VSS
asens
bsens
dsens
AVDD
AVREF1
source
DISCSENS
STRKEY1
isens
STRKEY2
bsrq
RECEIVE
brxen
brst
SYSTEM CONTROLLER
ADPW
swvdd
BDATA
B
C
FM/AM TUNER UNIT
ANTENNA
NOTE :
B
CN1801
Symbol indicates a resistor.
No differentiation is made between chip resistors and
discrete resistors.
Symbol indicates a capacitor.
No differentiation is made between chip capacitors and
discrete capacitors.
For resistors and capacitors in the circuit diagrams, their resistance values or
capacitance values are expressed in codes:
Ex. *Resistors
Code Practical value
123 12k ohms
103 10k ohms
*Capacitors
Code Practical value
103 0.01uF
101/10 100uF/10V
A-b
A-a
A-a
D
E
F
The > mark found on some component parts indicates
the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of
identical designation.
56
DEH-4700MP/XU/EW
A-a
7
8
17
1234
A
REAR
L CH
REAR
R CH
B
3A
CEK1286
>
TUNER AMP UNIT
A
FM: 32.6dB
CD: 36.45dB
C
A-b
A-a
D
E
AM: 23.1dB
332/16
F
A-b
18
1234
DEH-4700MP/XU/EW
5678
A
+
+
+
+
RL
FL
FR
CEK1208
>
10A
RR
-
RR
FR
BACK
-
-
-
RL
FL
B.
REM
ACC
UP
GND
B
WIRED REMOTE CONTROL
C
A-b
A-a
D
E
1
DEH-4700MP/XU/EW
56
F
2
7
8
A-b
19
1234
3.3 KEYBOARD UNIT
A
MODEL ILM COLOUR IL1801 D1805-1816 R1804-1813 R1816-1819
4700MP GREEN(PG) CEL1651 SML-310PT 181 151
4700MPB VW RED(SR) CEL1662 SML-310VT 331 331
B
C
D
E
LCD DRIVER/
KEY CONTROLLER
DIS
4700MP:YAW5024 4700MPB:YAW5025
F
B
20
1234
DEH-4700MP/XU/EW
5678
A
KEYBOARD UNIT
B
B
DISPLAY
40mA,14V
C
A
CN831
D
E
56
DEH-4700MP/XU/EW
F
B
7
8
21
1234
Y
3.4 CD MECHANISM MODULE(GUIDE PAGE)
A
PICKUP UNIT(P10)(SERVICE)
B
C-a
F
T
C
S
%
F
T
F
T
T
F
F
T
F
F
T
T
#
@
C
D
3
2
1
E
M1 CXC4440
SPINDLE MOTOR
M2 CXB8933
LOADING
/CARRIAGE
MOTOR
S
S
C
C
T
9
F
0
F
F
T
T
CD DRIVER
$
S
7
C
8
4
5
S
C
S
C
T
F
C
22
1234
DEH-4700MP/XU/EW
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