9. SETTING SHIPOUT CODE (when Main board is
exchanged)
10. INTERCONNECT
11. SCHEMATIC DIAGRAM
1
IMPORTANT NOTICE
WARNING:
You are requested that you shall not modify or alter the information or data provided
herein without prior written consent by Toshiba. Toshiba shall not be liable to
anybody for any damages, losses, expenses or costs, if any, incurred in connection
with or as a result of such modification or alteration.
THE INFORMATION OR DATA HEREIN SHALL BE PROVIDED "AS IS" WITHOUT ANY
WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED WARRANTY OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
Toshiba shall not be liable for any damages, losses, expenses or costs, if any,
incurred in connection with or as a result of use of any information or data provided
herein.
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.
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 54ºF to
72ºF (30ºC to 40ºC). 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.
(1/3)
SAFETY INSTRUCTION
WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "SAFETY
PRECAUTION" AND "PRODUCT SAFETY NOTICE" INSTRUCTIONS BELOW.
Safety Precaution
WARNING: SERVICING SHOULD NOT BE ATTEMPTED BY ANYONE UNFAMILIAR
WITH THE NECESSARY PRECAUTIONS ON THIS RECEIVER. THE FOLLOWING ARE
THE NECESSARY PRECAUTIONS TO BE OBSERVED BEFORE SERVICING THIS
CHASSIS.
1. An isolation transformer should be connected in the power line between the receiver
and the AC line before any service is performed on the receiver.
2. Always disconnect the power plug before any disassembling of the product. It may
result in electrical shock.
3. When replacing a chassis in the cabinet, always be certain that all the protective
devices are put back in place, such as nonmetallic control knobs, insulating covers,
shields, isolation resistor-capacitor network, etc.
4. Always keep tools, components of the product, etc away from the children, These
items may cause injury to children.
5. Depending on the model, use an isolation transformer or wear suitable gloves when
servicing with the power on, and disconnect the power plug to avoid electrical shock
when replacing parts. In some cases, alternating current is also impressed in the
chassis, so electrical shock is possible if the chassis is contacted with the power on.
6. Always use the replacement parts specified for the particular model when making
repairs. The parts used in products require special safety characteristics such as
inflammability, voltage resistance, etc. therefore, use only replacement parts that
have these same characteristics. Use only the specified parts when the
indicated in the circuit diagram or parts list.
7. Parts mounting and routing dressing of wirings should be the same as that used
originally. For safety purposes, insulating materials such as isolation tube or tape are
sometimes used and printed circuit boards are sometimes mounted floating. Also
make sure that wirings is routed and clamped to avoid parts that generate heat and
mark is
(2/3)
which use high voltage. Always follow the manufactured wiring routes / dressings.
8. Always ensure that all internal wirings are in accordance before re-assembling the
external casing after a repairing completed. Do not allow internal wiring to be
pinched by cabinets, panels, etc. Any error in reassembly or wiring can result in
electrical leakage, flame, etc., and may be hazardous.
9. NEVER remodel the product in any way. Remodeling can result in improper
operation, malfunction, or electrical leakage and flame, which may be hazardous.
10. Always perform an AC leakage current checking on the exposed metallic parts of the
cabinet such as antennas, terminals, screw heads, metal overlays, control shafts
and etc. to be sure that the set is safe to operate without any dangerous of electrical
shocks before returning the set to the customer.
11. The leakage current checking. (After completing the work, measure the leakage
current to prevent an electrical shock.)
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 ohms per volt or more sensitivity in the following
manner.
Connect a 1500 ohm 10 watt resistor, paralleled by a 0.15 µF, AC type capacitor, between
a known good earth ground (water pipe, conduit, etc.) and the exposed metallic parts, one
at a time. Measure the AC voltage across the combination of 1500 ohm resistor and 0.15
µF capacitor. Reverse the AC plug at the AC outlet and repeat AC voltage measurements
for each exposed metallic part. Voltage measured must not exceed 0.3 volts rms. This
corresponds to 0.2 milliamp. AC. Any value exceeding this limit constitutes a potential
shock hazard and must be corrected immediately.
(3/3)
Product Safety Notice
Many electrical and mechanical parts in this chassis have special safety-related
characteristics. These characteristics are often passed unnoticed by a visual inspection and
the protection afforded by them cannot necessarily be obtained by using replacement
components rated for higher voltage, wattage, etc. Replacement parts which have these
special safety characteristics are identified in this manual and its supplements; electrical
components having such features are identified by the international hazard symbols on the
schematic diagram and the parts list.
Before replacing any of these components, read the parts list in this manual carefully. The
use of substitute replacement parts which do not have the same safety characteristics as
specified in the parts list may create electrical shock, fire, or other hazards.
SERVICE MODE
ENTERING SERVICE MODE
1. Press MUTE button twice on Remote Control.
TV mode changes as follows. Un-Mute => 1/2Mute => Mute
2. Press MUTE button again and keep pressing.
(1/3)
(Sound Mute is canceled)
3. While pressing the MUTE button, press CH/INPUT button on TV control panel.
(Enter Service Mode)
(2/3)
Normal
KEY FUNCTION IN THE SERVICE MODE
The following key entry during display of adjustment menu provides special functions.
Button Function
INPUT button (on Remote) Test signal selection
CH (on Remote) Selection of the adjustment items
VOL +/– (on Remote) Change of the data value
[7] button Automatic A/D Adjustment
(PC, Component, Composite(PAL, NTSC))
[9] button Self Check display ON
[Exit] button Exit from Service mode
Self Check display Off
CAUTION: Never try to perform initialization unless you have changed the memory IC.
TEST SIGNAL SELECTION
1) While displaying the adjustment menu, every pressing of INPUT button on the Remote Control changes the
built-in test patterns on screen as described below.
When a pattern is changed at the time of an ATV display, it can display only for a moment.
Picture
Red screen Green screen
Blue screen
SELECTING THE ADJUSTING ITEMS
1) While displaying the adjustment menu, press the CH button to cycle through the adjustment items in the
order of table. (CH
button for reverse order)
ADJUSTING THE DATA
1) While displaying the adjustment menu, press the VOL +/– button to change the value of data in the range
from 00H to FFH. The variable range depends on the adjusting item.
EXIT FROM SERVICE MODE
1) Press the [Exit] button on Remote.
ADJUSTING ITEMS IN THE SERVICE MODE
Item Description
RCUT RED CUTOFF
GCUT GREEN CUTOFF
BCUT BLUE CUTOFF
RDRV RED DRIVE
GDRV GREEN DRIVE
BDRV BLUE DRIVE
OSRC COOL R-CUTOFF-OFFSET for COOL
OSRC NATURAL R-CUTOFF-OFFSET for NATURAL
OSRC WARM R-CUTOFF-OFFSET for WARM
OSGC COOL G-CUTOFF-OFFSET for COOL
OSGC NATURAL G-CUTOFF-OFFSET for NATURAL
OSGC WARM G-CUTOFF-OFFSET for WARM
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OSBC COOL B-CUTOFF-OFFSET for COOL
OSBC NATURAL B-CUTOFF-OFFSET for NATURAL
OSBC WARM B-CUTOFF-OFFSET for WARM
OSRD COOL R-DRIVE-OFFSET for COOL
OSRD NATURAL R-DRIVE-OFFSET for NATURAL
OSRD WARM R-DRIVE-OFFSET for WARM
OSGD COOL G-DRIVE-OFFSET for COOL
OSGD NATURAL G-DRIVE-OFFSET for NATURAL
OSGD WARM G-DRIVE-OFFSET for WARM
OSBD COOL B-DRIVE-OFFSET for COOL
OSBD NATURAL B-DRIVE-OFFSET for NATURAL
OSBD WARM B-DRIVE-OFFSET for WARM
OSRD 3D COOL R-DRIVE-OFFSET for COOL (3D)
OSRD 3D NATURAL R-DRIVE-OFFSET for NATURAL (3D)
OSRD 3D WARM R-DRIVE-OFFSET for WARM (3D)
OSGD 3D COOL G-DRIVE-OFFSET for COOL (3D)
OSGD 3D NATURAL G-DRIVE-OFFSET for NATURAL (3D)
OSGD 3D WARM G-DRIVE-OFFSET for WARM (3D)
OSBD 3D COOL B-DRIVE-OFFSET for COOL (3D)
OSBD 3D NATURAL B-DRIVE-OFFSET for NATURAL (3D)
OSBD 3D WARM B-DRIVE-OFFSET for WARM (3D)
LED INDICATIONS FOR SERVICE
/
SW Upgrade and Error conditions indicated by the Power LED is described below.
Power LED
Green blink SW Upgrade in Progress
Red SW Upgrade Failed
Green SW Upgrade Successful
(1/3)
FIRMWARE UPDATING
To upgrade FW for L8400U/L9400U series via USB mass storage device, please follow the
steps below:
1. Use the USB mass storage device formatted with “FAT32”.
2. Copy the following 3 files to the root directory of the USB mass storage device.
3. Plug and turn on the DTV, waiting until the picture is displayed on the screen.
4. Insert the USB mass storage device to the U SB -1 slot(Bottom side) of the DTV.
("9.12.xx.yy.zz.1" is a FW version number.) (Same as L9400 model)
("9.12.xx.yy.zz.1" is a FW version number.)
5. After the following message appears, select “Yes” with Left/Right key, and push “OK”
NOTE:
This message may not appear if the TV was using a network
function at the time the USB Flash Drive was connected. In this
case, please select the ANT/CABLE input and then remove and
reconnect the USB Flash Drive
key to start FW upgrade.
(2/3)
6. Then, the following message appears to enable users to select their preferable behaviour
after the SW upgrade completes. If YOU want DTV to reboot automatically after FW
upgrade, select “Yes”. If YOU want DTV to go to standby after that, select “No”.
7. When FW upgrade starts, the following message appears. Please leave the DTV alone
until FW upgrade completes as described in No.9 below.
8. After that, the following gauge screen appears. Wait until the gauge display reaches
100%.
9. If FW upgrade succeeds, the following message appears. After that, the DTV will reboot
or go to standby automatically according to the user setting on No.6 above.
10. Unplug USB mass storage device from the DTV.
02: Mexico
MAIN BOARD EXCHANGE
1. Whenever Main Board is exchanged, you are required to confirm the Destination (Ship
Out Code Setting).
If the Setting is not valid, change the Ship Out Code.
(See “SETTING SHIPOUT CODE_TM14NA4K”)
2. Check the shipout code by using self check screen.
How to enter the self check screen.
1 Press SETUP on remote control unit.
2 Select “Get Help” >> “System Information”
3 Press “3” “5” “7” “4”
00 00 00 00 00
The 4th byte is the Shipout code.
00: USA
01: Canda
(1/3)
SETTING SHIPOUT CODE (when Main board
is exchanged)
When Main board is exchanged, the shipout code needs to be set up according to the each
Destination.
Please install the each Model Setting File in the following procedure.
1. Use the USB mass storage device formatted with “FAT32”.
2. Cop y the following file to the root of the USB mass storage device.
<Use below file to change the shipout code to USA>