TOSHIBA 42WLG66
LCD TV
SERVICE MODE
Service Mode
1. Press MUTE button once on remote control.
2. Press MUTE button again and keep in pressing.
3. While pressing the MUTE button, press MENU
button on TV set.
Displaying the Adjustment Menu
Press MENU button on TV.
Key Function in the Service Mode
Test signal selection ---AV( SOURCE ) button (on remote control)
Selection of the adjustment items ---CH (on TV or remote control)
Change of the data value ----Volume +/- (on TV or remote control)
Adjustment menu mode ----ON/OFF MENU button (on TV)
Initialization of the memory ----(QA02) CALL + CH button on TV ( ^)
Reset the count of operating protect circuit to "00" …CALL + CH button on TV ( )
"RCUT" selection… 1 button
"GCUT" selection… 2 button
"BCUT" selection …3 button
"CNTX" selection… 4 button
"COLC" selection …5 button
"UVTT" selection…. 6 button
Automatic A/D Adjustment (PC, Component, Composite (PAL, NTSC)) ….7 button
Self diagnostic display ON/OFF…. 9 button
Change of the data value ----Volume +/- (on TV or remote control)
Adjustment menu mode ----ON/OFF MENU button (on TV)
Initialization of the memory ----(QA02) CALL + CH button on TV ( ^)
Reset the count of operating protect circuit to "00" …CALL + CH button on TV ( )
"RCUT" selection… 1 button
"GCUT" selection… 2 button
"BCUT" selection …3 button
"CNTX" selection… 4 button
"COLC" selection …5 button
"UVTT" selection…. 6 button
Automatic A/D Adjustment (PC, Component, Composite (PAL, NTSC)) ….7 button
Self diagnostic display ON/OFF…. 9 button
Selecting the Adjusting Items
Every pressing of CH UP button in the service
mode changes the adjustment items in the order of table below. ( DOWN button
for reverse order)
SETTING & ADJUSTING DATA
[ SERVICE MODE ]
ADJUSTING ITEMS AND DATA IN THE SERVICE MODE:
[ SERVICE MODE ]
ADJUSTING ITEMS AND DATA IN THE SERVICE MODE:
Adjusting the Data
Pressing of VOLUME +/- button will change the
value of data in the range from 00H to FFH. The variable range depends on the
adjusting item.
Note: The image system data of RCUT-BDRV is different by each image format. The PAL value is indicated in the table. Never adjust H.POS and V.POS except PAL/WIDE mode.
Note: The image system data of RCUT-BDRV is different by each image format. The PAL value is indicated in the table. Never adjust H.POS and V.POS except PAL/WIDE mode.
Exit from Service Mode
Pressing POWER button to turn off the TV once.
After replacing QA02, the following initialization is required.
1. Enter the service mode, then select any
register item.
2. Press and hold the CALL button on the remote
control, then press the CH UP button on the TV. The initialization of QA02 has
been completed.
3. Check the picture carefully. If necessary,
adjust any adjustment item above. Perform "Auto tune" on the owner's
manual.
Self Diagnostic Function
1. Press "9" button on remote control
during display of adjustment menu in the service mode. The diagnosis will begin
to check if interface among IC's is executed properly.
Version Check Mode
1. Press "9" button twice on remote
control during display of adjustment menu in the service mode. The version of
main MPU will begin to check.
Setting Hotel Mode
Enter to service mode and select Hotel Mode menu
by pressing P UP or P DOWN . After selecting Hotel Mode, press VOLUME + to
enter details setting in Hotel Mode. To select menu, press P UP or P DOWN and press OK to enter the adjustment menu of
OPT2. To move the cursor in the adjustment, press VOLUME + or -.
SAFETY INSTRUCTION
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
resistorcapacitor 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 mark is ^ 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 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. Touch current check. (After completing the
work, measure touch current to prevent an electric shock.)
