SERVICE MANUAL
PORTABLE CD PLAYER
No.21018
Jul. 2001
COPYRIGHT
2001 VICTOR COMPANY OF JAPAN, LTD.
COMPACT
DIGITAL AUDIO
CO
MPA
CT
DIG
ITA
L A
UD
IO
REPEA
T/
RAN
DOM
HBS
+10
GR
OUP
ESP
RES
UME
Volume
D
C
IN
4.
5V
OPE
N
Lin
e O
ut
Contents
Safety Precautions
Important for laser products
Preventing static electricity
Disassembly method
Troubleshooting
Explanation of MP3
Description of major ICs
Parts list
1-2
1-3
1-4
1-5
1-7
1-8
1-9
1-13 ~18
XL-PM11/XL-PM1
XL-PM11/XL-PM1
Area Suffix
XL-PM1
J ------------------------ U.S.A.
C --------------------- Canada
B -------------------------- U.K.
E ------ Continental Europe
XL-PM11
C --------------------- Canada
Area Suffix
XL-PM11
Gift box
XL-PM1
Blister pack
PACKING
Model XL-PM11 is an exclusive use for Canada. As for
the difference between XL-PM11 and XL-PM1, the
packing specification is different.
XL-PM11/XM-PM1
1-2
1. This design of this product contains special hardware and many circuits and components specially for safety
purposes. For continued protection, no changes should be made to the original design unless authorized in
writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services
should be performed by qualified personnel only.
2. Alterations of the design or circuitry of the product should not be made. Any design alterations of the product
should not be made. Any design alterations or additions will void the manufacturer`s warranty and will further
relieve the manufacture of responsibility for personal injury or property damage resulting therefrom.
3. Many electrical and mechanical parts in the products have special safety-related characteristics. These
characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily
be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which
have these special safety characteristics are identified in the Parts List of Service Manual. Electrical
components having such features are identified by shading on the schematics and by (
) on the Parts List in
the Service Manual. The use of a substitute replacement which does not have the same safety characteristics
as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or
other hazards.
4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be
separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of
electric shock and fire hazard. When service is required, the original lead routing and dress should be
observed, and it should be confirmed that they have been returned to normal, after re-assembling.
5. Leakage currnet check (Electrical shock hazard testing)
After re-assembling the product, always perform an isolation check on the exposed metal parts of the product
(antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the
product is safe to operate without danger of electrical shock.
Do not use a line isolation transformer during this check.
Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage
current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return
path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.).
Alternate check method
Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more
sensitivity in the following manner. Connect a 1,500
10W resistor paralleled by a 0.15 F AC-type capacitor
between an exposed metal part and a known good earth ground.
Measure the AC voltage across the resistor with the AC
voltmeter.
Move the resistor connection to each exposed metal part,
particularly any exposed metal part having a return path to
the chassis, and meausre the AC voltage across the resistor.
Now, reverse the plug in the AC outlet and repeat each
measurement. Voltage measured any must not exceed 0.75 V
AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.).
1. This equipment has been designed and manufactured to meet international safety standards.
2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.
3. Repairs must be made in accordance with the relevant safety standards.
4. It is essential that safety critical components are replaced by approved parts.
5. If mains voltage selector is provided, check setting for local voltage.
Good earth ground
Place this
probe on
each exposed
metal part.
AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)
1500
10W
0.15 F AC TYPE
!
Burrs formed during molding may
be left over on some parts of the
chassis. Therefore, pay attention to
such burrs in the case of
preforming repair of this system.
In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the
parts that are printed over with black such as the resistor (
), diode (
) and ICP (
) or identified by the " "
mark nearby are critical for safety.
When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer.
(Except the J and C version)
XL-PM11/XM-PM1
1-3
Important for laser products
1.CLASS 1 LASER PRODUCT
2.DANGER : Invisible laser radiation when open and inter
lock failed or defeated. Avoid direct exposure to beam.
3.CAUTION : There are no serviceable parts inside the
Laser Unit. Do not disassemble the Laser Unit. Replace
the complete Laser Unit if it malfunctions.
4.CAUTION : The compact disc player uses invisible
laserradiation and is equipped with safety switches which
prevent emission of radiation when the drawer is open and
the safety interlocks have failed or are de
feated. It is dangerous to defeat the safety switches.
5.CAUTION : If safety switches malfunction, the laser is able
to function.
6.CAUTION : Use of controls, adjustments or performance of
procedures other than those specified herein may result in
hazardous radiation exposure.
! CAUTION Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
WARNING LABEL
DHHS LABEL
CLASS 1
LASER PRODUCT
(Cabinet -bottom)
(Cabinet -door/ inside)
Reproduction and position of labels
B, E version
J, C version
XL-PM11/XM-PM1
1-4
Preventing static electricity
1. Grounding to prevent damage by static electricity
Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged,
can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
2. About the earth processing for the destruction prevention by static electricity
In the equipment which uses optical pick-up (laser diode), optical pick-up is destroyed by the static electricity of
the work environment.
Be careful to use proper grounding in the area where repairs are being performed.
2-1 Ground the workbench
Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over
it before placing the traverse unit (optical pickup) on it.
2-2 Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
3. Handling the optical pickup
1. In order to maintain quality during transport and before installation, both sides of the laser diode on the
replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)
2. Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power
source can easily destroy the laser diode.
4. Handling the traverse unit (optical pickup)
1. Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.
2. Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific
details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the traverse
unit. Be careful not to take too long a time when attaching it to the connector.
3. Handle the flexible cable carefully as it may break when subjected to strong force.
4. It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.
Conductive material
(conductive sheet) or iron plate
(caption)
Anti-static wrist strap
Flexible board
CD mechanism
assembly
short-circuit land
CON1
on the main board
1.
2.
3.
Remove the door & middle cabinet.
Solder the short-circuit land on the flexible board, before the
flexible board is removed from connector CON1 on the main
board.
(When the flexible board is removed without putting up solder,
the CD mechanism assembly might destroy.)
Please unsolder the short-circuit land after connecting the
flexible board with the CON1 on the main board, when you
install CD mechanism assembly in the substrate.
Attention when CD mechanism assembly is decomposed
*Please refer to "Disassembly method" in the text for pick-up and how to
detach the CD mechanism assembly.
XL-PM11/XM-PM1
1-5
Remove the two screws A attaching the cabinet -
door on the back of the body.
Remove the two screws B on the cabinet -bottom.
Remove the three screws C attaching the cabinet -
middle and remove the cabinet -middle from the
cabinet -bottom.
ONE POINT:
Disconnect the flexible board from connector
FRW000 on the main board, and remove the cabinet
-door with cabinet -middle.
1.
2.
3.
4.
Disassembly method
Removing the cabinet -door & cabinet
-middle
(See Fig.1 to 4)
Flexible board is bonded with couple-
face tapes internally in the cabinet -
middle.
Fig.1
Fig.2 (The photograph is one of
the B and E version. )
Fig.3 (The photograph is one of
the B and E version. )
A
A
B
B
C
C
C
Cabinet -door
Cabinet -door (inside)
Fig.4
FRW000
Main board
Cabinet -middle
Cabinet -middle
Cabinet -middle (inside)
Cabinet -bottom
Cabinet -bottom
Cabinet -bottom (inside)
Flexible board