VIDEO (RCA Pin Type)1.0Vp-p (75W)
S-VIDEO (MINI DIN 4-pin)Y: 1.0Vp-p (75W) C: 0.286Vp-p (75W)
UDIO L-R (RCA Pin Type × 2)0.5Vrms
AV3-FrontVIDEO (RCA Pin Type)1.0Vp-p (75W)
S-VIDEO (MINI DIN 4-pin)Y: 1.0Vp-p (75W) C: 0.286Vp-p (75W)
UDIO L-R (RCA Pin Type × 2)0.5Vrms
AV4-Rea
VIDEO (RCA Pin Type)1.0Vp-p (75W)
UDIO L-R (RCA Pin Type × 2)0.5Vrms
1.0Vp-p (including synchronization)
PB/P
R
±0.35Vp-p
HD/VD1.0-5.0Vp-p (high impedance) (TTL level)
MONITOR OUTVIDEO (RCA Pin Type)1.0Vp-p (75W)
UDIO L-R (RCA Pin Type × 2)0.5Vrms
OthersSD Card slot × 1, PC Card slot × 1
Dimensions (W x H x D)
Including TV Stand844mm x 571.8mm x 321mm (26 inch model)1,000mm x 651.7mm x 321mm (32 inch model)
TV Set Only844mm x 478mm x 137mm (26 inch model)1,000mm x 558mm x 137mm (32 inch model)
Weight22.5kg Net (26 inch model)27kg Net (32 inch model)
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
1.1.1. Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two
prongs on the plug.
2. Measure the resistance value, with an ohmmeter, between
the jumpered AC plug and each exposed metallic cabinet
part on the equipment such as screwheads, connectors,
control shafts, etc. When the exposed metallic part has a
return path to the chassis, the reading should be between
1MW and 5.2MW.
When the exposed metal does not have a return path to
the chassis, the reading must be
Figure 1
.
1.1.2. Leakage Current Hot Check (See
Figure 1.)
1. Plug the AC cord directly into the AC outlet. Do not use an
isolation transformer for this check.
2. Connect a 1.5kW, 10 watts resistor, in parallel with a 0.15µF
capacitors, between each exposed metallic part on the set
and a good earth ground such as a water pipe, as shown in
Figure 1.
3. Use an AC voltmeter, with 1000 ohms/volt or more
sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the
voltage at each point.
5. Reverse the ACplug in theAC outlet andrepeat each of the
above measurements.
6. The potential at any point should not exceed 0.75 volts
RMS. A leakage current tester (Simpson Model 229 or
equivalent) may be used to make the hot checks, leakage
current must not exceed 1/2 milliamp. In case a
measurement is outside of the limits specified, there is a
possibility of a shock hazard, and the equipment should be
repaired and rechecked before it is returned to the
customer.
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage
caused by electro static discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as alminum
foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static (ESD protected)" can
generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, alminum foil or comparable
conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
Caution
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise hamless motion such as the brushing
together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to
damage an ES device).
1. Remove the rear AV bracket ass´y (See 6.3.) and the rear
metal frame. (See 6.4.)
2. Disconnect the couplers (K3, JG3, JG6 and V1).
3. Remove the fixing screws (2pcs).
4. Remove the front bracket.
6.14. K-Board
1. Remove the front bracket. (See 6.13.)
2. Remove the hooks (4place).
3. Remove the K-Board.
1. Remove the front bracket. (See 6.13.)
2. Remove the hooks (2place).
3. Remove the V-Board.
6.17. Main chassis
1. Remove the rear AV bracket ass´y (See 6.3.) and the rear
metal frame. (See 6.4.)
2. Disconnect the couplers (K3, JG3, JG6, V1, P2, P3, SPL
and SPR) and the flexible cables (DG5).
3. Remove the fixing screws (4pcs).
4. Remove the main chassis.
6.15. JG-Board
1. Remove the front bracket. (See 6.13.)
2. Remove the hooks (3place).
3. Remove the JG-Board.
·
· Disconnecting flexible cable from the coupler.
· ·
Lift up both ends of the cable lock (brown colored)
simultaneously to release the locking. Once the flat cable is
disconnected from the coupler, the cable lock tends to
detach from the coupler easily. Due precaution should be
paid on it.
·
· Reconnecting flexible cable to the coupler.
· ·
Attach the cable lock (brown) to the coupler (white) with its
both ends being pulled up. Insert the flat cable into the
coupler over the cable lock until the cable stops firmly at the
coupler end. Press down both ends of the cable lock until
their upper faces are positioned flat to lock the cable.
MPU controls the functions switching for each IICs through IIC bus in this chassis. The following setting and adjustment can be
adjusted by remote controller in Service Mode.
8.1. How to enter SERVICE 1
1. In main menu, choose sound menu, set BASS to MAXIMUM, and set TREBLE to MINIMUM.
2. Simultaneously press INDEX (LX1A/M/X) CH SEARCH (LX1H/DJ) button on remote controller and DOWN button [
TV set.
8.2. How to enter SERVICE 2
1. Enter SERVICE 1
2. Select the “TEXT Clamper Level”.
3. Set the channel to CH99.
4. Press HOLD (LX1A/M/X) STILL (LX1H/DJ) button on remote controller.
Note:
To exit to Service mode, press Power button on remote controller.
If the memory IC (IC1115) or DG Board is replaced, option code should be re-memorized.
Spare part of IC1115 is already memorized all Data for TX-26LX1M.
If you use for other model, you should re-memorized the different option code in SERVICE 2 mode.
8.5. Option Code Setting (32 inch model)
If the memory IC (IC1115) or DG Board is replaced, option code should be re-memorized.
Spare part of IC1115 is already memorized all Data for TX-32LX1M.
If you use for other model, you should re-memorized the different option code in SERVICE 2 mode.
Remote controller
Internal signal (100% composite picture color bar)
1. Receive composite picture color bar (100% PAL) by RF signal input.
(Aspect mode : wide, Viewing mode: standard, LCD AI: OFF)
2. Go to "Auto Y Gain" under Service 1 and make automatic adjustment of video signal level by the blue key.
·
· When Service 1 appears, presetting takes place automatically as shown below.
· ·
·
· Sharpness: 0
· ·
·
· AI: OFF
· ·
·
· Comb filter : On
· ·
3. Press STR key to write the value of adjustment results to EEPROM.
4. Check that the automatic adjustment of video signal level has completed normally.
·
· When the adjustment is completed normally, the "Auto Y Gain" color turns black.
· ·
9.1.2. RF AGC adjustment (Auto adjustment)
RF input
1. Receive RF signal, and enter the Service 1, RF AGC adjustment mode.
2. The adjustment will be finished automatically if blue key ispressed on the remote controller. (The character colour will be black
if finished.)
3. Change the input signal strength and check the RF AGC Reference value is as follows.
·
· Signal strength: 63dB = about 130 to 140
· ·
·
· Signal strength: 93dB = about 60 to 70
· ·
·
· Signal strength: 33dB = about 190 to 200
· ·
9.2. WB Adjustment
Instrument NameConnect toRemarks
1. Remote controller
2. LCD WB meter (Minolta CS-1000 equivalent)
3. Communication jig
4. Computer for external control
·
· Basically perform checking using the production software and make automatic adjustment using external computer.
· ·
·
· Let the panel stand for more than 3 hours at 20 °C to 25 °C.
· ·
·
· Basically perform assemble to completion in the ambient environment of room temperature 20 °C to 25 °C.
· ·
1. Enter into WB adjustment in the plant adjustment mode and measure the WHITE brightness data to check that it is higher than
400 cd /m
(When it is below 400 cd /m
2. For the Excel calculation sheet, use "LX1 series, calculation software".
3. Using the jig, measure the brightness and chromaticity coordinates of single colors, white, red, green and blue, at the maximum
brightness (using basic data) and calculate the gamma data corrected at the maximum brightness using Excel calculation sheet
on the external computer.
4. Write the values calculated in 3 above in the gamma data part in EEPROM.
EEPROM Adr: 0C58h ~ 0C5Bh, 0C5Ch ~ C5Fh ...R (color temperature Normal)
Note:
5. Reflect the data in 4 above and select gray and measure the brightness and chromaticity coordinate at that time and calculate
the gamma data (color temperature, normal) and cool and warm color temperatures, corrected at half-tone, using the external
computer.
2
.
2
, make re-measurement in 30 minutes after cold-on.)
0C08h ~ 0C0Bh, 0C0Ch ~ 0C0Fh ...G (color temperature Normal)
0C30h ~ 0C33h, 0C34h ~ 0C37h ...B (color temperature Normal)
For T.T., P.P. and M.P., record the brightness and chromaticity coordinates for white, red, green and blue.
6. Write the values calculated in 5 above in the gamma data part in EEPROM.
EEPROM Adr: 0C58h ~ 0C5Bh, 0C5Ch ~ 0C5Fh ...R (color temperature Normal)
0C08h ~ 0C0Bh, 0C0Ch ~ 0C0Fh ...G (color temperature Normal)
0C30h ~ 0C33h, 0C34h ~ 0C37h ...B (color temperature Normal)
0C50h ~ 0C53h, 0C54h ~ 0C57h ...R (color temperature Warm)
0C00h ~ 0C03h, 0C04h ~ 0C07h ...G (color temperature Warm)
0C28h ~ 0C2Bh, 0C2Ch ~ 0C2Fh ...B (color temperature Warm)
0C60h ~ 0C63h, 0C64h ~ 0C67h ...R (color temperature Cool)
0C10h ~ 0C13h, 0C14h ~ 0C17h ...G (color temperature Cool)
0C38h ~ 0C3Bh, 0C3Ch ~ 0C3Fh ...B (color temperature Cool)
Note:
For T.T., P.P. and M.P., record the brightness and chromaticity coordinates for white, red, green, and blue at CHECK and
GRAY in the final gamma setting.Also for P.P. and M.P. record the brightness and chromaticity coordinates at color
temperatures Normal and Warm.
7. Reflect the data in 6 above and CHECK that the chromaticity coordinates, at check and GRAY, are within the values given
below.