The above model is classified as a green products (*1), as indicated by the underlined serial numbers.
This Service Manual describes replacement parts for green products . When repairing any green
products, use the part
For (*1) and (*2), see the next page.
(s) described in this manual and lead-free solder (*2).
Dec.,2005GREEN
(*1)GREEN PRODUCT PROCUREMENT
The EC is actively promoting the WEEE & RoHS Directives that define standards for recycling
and reuse of Waste Electrical and Electronic Equipment and for the Restriction of the use of
certain Hazardous Substances. From July 1, 2006, the RoHS Directive will prohibit any
marketing of new products containing the restricted substances.
Increasing attention is given to issues related to the global environmental. Toshiba Corporation
recognizes environmental protection as a key management tasks, and is doing its utmost to
enhance and improve the quality and scope of its environmental activities. In line with this,
Toshiba proactively promotes Green Procurement, and seeks to purchase and use products,
parts and materials that have low environmental impacts.
Green procurement of parts is not only confined to manufacture. The same green parts used in
manufacture must also be used as replacement parts.
(*2)LEAD-FREE SOLDER
This product is manufactured using lead-free solder as a part of a movement within the consumer
products industry at large to be environmentally responsible. Lead-free solder must be used in
the servicing and repair of this product.
WARNING
This product is manufactured using lead free solder .
DO NOT USE LEAD BASED SOLDER TO REPAIR THIS PRODUCT !
The melting temperature of lead-free solder is higher than that of leaded solder by 86°F to 104°F
(30°C to 40°C). Use of a soldering iron designed for lead-based solders to repair product made
with lead-free solder may result in damage to the component and or PCB being soldered. Great
care should be made to ensure high-quality soldering when servicing this product especially
when soldering large components, through-hole pins, and on PCBs as the level of heat
required to melt lead-free solder is high.
itslifemightbeshortened.Whenreplacing,useaconductivemat,solderingironwithgroundwire,etc.to keepthelaserdiodeaway fromdamagebystaticelectricity.The above caution is also applied to LSI and IC .
Plug the AC line cord directly into a 120V AC outlet (do
not use an isolation transformer for this check). Use an
AC voltmeter, having 5000 per volt or more sensitivity.
Connect a 1500 10W resistor,paralleled by a 0.15uF
150V AC capacitor between a known good earth ground
(water pipe, conduit, etc.) and all exposed metal parts of
cabinet (antennas, handle bracket, metal cabinet
screwheads, metal overlays, control shafts, etc.).
READING SHOULD NOT EXCEED 0.3V
DVD VIDEO PLAYER
Measure the AC voltage across the 1500 resistor.
The test must be conducted with the AC switch on and
then repeated with the AC switch off. The AC voltage
indicated by the meter may not exceed 0.3V.A reading
exceeding 0.3V indicates that a dangerous potential
exists, the fault must be located and corrected.
Repeat the above test with the DVD VIDEO PLAYER
power plug reversed.
NEVER RETURN A DVD VIDEO PLAYER TO THE
CUSTOMER WITHOUT TAKING NECESSARY
CORRECTIVE ACTION.
AC VOLTMETER
(5000 per volt
or more sensitivity)
Good earth ground
1500
10W
such as a water pipe,
conduit, etc.
AC OUTLET
0.15uF 150V AC
Test all exposed metal.
Voltmeter Hook-up for Leakage Current Check
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated "dangerous voltage" within the
product's enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying the appliance.
RF AMP & SERVO & DVD PROCESSOR
MPEG-2 DECODER & VIDEO ENCODER
ZR36882
+5V
+5V
DRIVER +5V
+3.3V
+1.8V
L
R
DC / DC
UPD5500A
TFT POWER
+3.3V +5V +2.5V +16V -13V
AUDIO +5V
AUDIO D/A
(WM8728)
AUDIO +/-5V
BATTERY
TFT MONITOR
L
R
OTHER 5V
AUDIO 5V
HIGH VOLTAGE ASS'Y
VIDEO IN
VIDEO OUT
Y/C OUT
AUDIO AMP
(AZ4558)
AUDIO OUT
RL
AUDIO IN
TC74HC4052
(BQ2057C)
(TPC8207)
(VG202C)
+5V
RL
SPEAKER AMP
TPA6011
SPEAKER LOUT
SPEAKER ROUT
PHONE OUT
1. Troubleshooting
1. No power when turned on.
2. The initial screen is not displayed on the LCD.
3. The DVD drive does not work.
4. The operation of the DVD player stops at initializing display.
5. Image output stops during the operation.
6. No sound or abnormal sound comes out from the speakers in the DVD player.
7. No image or sound comes out from the external output.
8. No sound comes out from the headphones.
9. No image or sound is output by external input.
10. The DVD drive does not operate with the battery.
1.1 No power when turned on.
When the power is turned on, and if the LED on the front panel does not light green, check
the following items and repair the defective parts.
(1) Check the power supply cable
If the cable is not the supplied one, replace it with the supplied cable and turn on the
power again.
If the power supply cable is good, the AC adapter may be defective.
If the LED does not light after replacing, check the following items.
(2) Check the AC adapter
If the AC adapter is not the supplied one, replace it with the supplied AC adapter and
turn on the power.
If the AC adapter is good, the main board may be defective.
If the LED does not light after replacing, check the following items.
(3) Replace the main board
1.2 The initial screen is not displayed on the LCD.
If the initial screen is not displayed on the LCD, check the following items.
(1) Check the LED on the front
If the LED does not light, proceed to 1.1.
(2) Check the backlight
If the backlight does not light up, separate the DVD player into top assembly and
bottom assembly, and check the Harness, and check the connectors for
defects.
If the Harness is broken:
Replace the broken Harness.
If th
e Harness is not broken:
Rem
ove the LCD Mask and the LCD Unit and check the following:
zCheck the connector
zIf the connectors are good, replac
(3) Check the lighting of LCD
If the LCD does not light, separate the DVD player into the top assembly and bottom
assembly, and check
If the connector is broken:
Replac
If the connector is not broken:
harness of the LCD unit.
zIf a bad connection is found.
zOther than the above
e the Harness or the main board.
Remove the LCD
Connec
Replace the LCD unit or the main board.
t the Harness to the LCD unit.
s of the Harness, replace the Inverter Unit or the LCD Unit.
e the Inverter Unit or the LCD Unit.
the Harness, and check the connectors on the main board.
Mask and the LCD Unit, and check the connection to the
1.3 The DVD drive does not work.
When the DVD drive does not work after the power is turned on, check the following items
and repair or replace the defective parts.
(1) Press the DISC cover switch and turn on the power. Then check whether or not
the optical pick-up lens of the DVD drive lights.
CAUTION: Visible laser radiation when open and interlock defeated. Do not stare into
Laser beam.
The optical pick-up lens lights dim:
It is caused by deterioration of the optical pick-up lens. Replace the DVD drive.
The optical pick-up lens does not light:
Check the connectors of
board and to the DVD drive.
zLoose connection is found.
Connect FPC with DVD drive to Main Board firmly, and then check
the operation of the DVD drive again.
zThe DVD-FFC is broken.
Replace the DVD drive.
zOther than the above.
Replace the DVD drive or the main board.
(2) Insert a DVD disc and turn on the power
The DVD drive does not work:
The motor of the DVD drive or the main board is defective. Replace the DVD drive
or the main board.
The DVD drive works but the initializing operation of the optical pick-up lens
does not start or abnormal noise sound:
The DVD drive is defective. Replace the DVD drive.
1.4 The operation of the DVD player stops at initializing display.
If the DVD player does not work after the initializing screen is displayed, check the
indication on the screen. Then repair the defect according to it.
(1) Insert a DVD disc and close the DISC cover, and turn on the power. Then check
the LCD screen or TV connected by AV cable.
zThe message “loading” is not displayed or the operation stops at the
message “Loading”.
Since the DVD drive or the main board is defective, check in the following order:
If a loose connec
If it is damaged, replace the DVD drive.
For other cases, replace the unit in the following order:
c for fingerprints, dirt, etc.
c is OK, then check the following items:
tion, connect it firmly.
the FPC with DVD drive. Also check the connection to the main
C” is displayed.
1.5 Picture output stops during the operation.
If the image output from the media in the DVD player stops during the operation, replace
the DVD drive.
1.6 No sound or abnormal sound comes out from the speakers in the DVD player.
If no sound comes out from the speakers in the DVD player, check the following:
(1) Check for moving images on the LCD screen
Check whether or not the picture stops in halfway. If it stops, replace the DVD
drive.
(2) Check the operation of the DVD drive
Check whether or not the DVD drive works. If it stops, replace the DVD drive.
(3) Check the connection of the speakers in the DVD player.
Separate the DVD player into the top assembly and bottom assembly, and then check
the connections of the speaker harnesses
to the main board. If the connection is loose,
been connected firmly, replace the main board or speaker.
1.7
No pictrue or sound comes out from the external output
If
nopicture or sound is output from the TV connected by the AV cable, replace the
main board.
NOTE: Before this test, make sure the drive works.
1.8 No sound comes out from the headphones.
If no sound comes out from the headphones, replace the main board.
.
to the Inverter Unit.Then check the Inverter Unit
connect it firmly. If the connector has
1.9
No picture or sound is output by the external input.
no image or sound is output by AV input, replace the main board.
If
1.10 The DVD drive does not operate with the battery.
(1) Check the operation with a good battery.
Install a good battery and make sure the LED lights up orange while the AC adapter is
connected. When the LED does not light up or blinks, check the connection of the
battery connector inside the DVD player. If the connection is loos
If the connector has been connected firmly, replace the main board.
(2) Other than the above, replace the battery.
NOTE:
zFor this check, use a battery which is not fully charged (because the LED does
not light when the battery is fully charged.)
zBefore this check, make sure other function work correctly.
e, connect it firmly.
A
1345678910
2
MAIN BOARD CIRCUIT DIAGRAM
(AUDIO CIRCUIT DIAGRAM)
Note: There are rating label (21) applied on the bottom cover ass'y (20).
When the bottom cover is replaced with a new one, put a new rating label on the new bottom cover.
Transcribe the following items (SERIAL NO., MANUFACTURED etc.) described on the old rating label
to the new rating label by using a permanent maker.
SAFETY PRECAUTIONThe parts identified by mark are critical for safety. Replace only with part number
specified. The mounting position of replacement is to be identical with originals.
The substitute replacement parts which do not have the same safety characteristics as
specified in the parts list may create shock, fire or other hazards.