Dimensions ( W × H × D )Plasma display unit 135cm × 83.6cm × 11cm
Receiver unit 43.5cm × 7cm × 31.9cm
MassPlasma display unit 51.0kg
Receiver unit 3.6kg
TV RF SystemCCIR (M)
Color System NTSC
Sound System BTSC (Multi Channel Sound)
Teletext SystemClosed caption (T1-T4 / CC1-CC4)
TV Receiving Channels and
Frequency
TV / CATV Total Channel
Intermediate FrequencyVideo IF
Color Sub Carrier3.58 MHz
Power InputAC120V - AC240V, 60Hz
Power ConsumptionPlasma display unit
Antenna TerminalF-type connector, 75Ω unbalanced, coaxial
Video / Audio Input
[INPUT-1/2/3/4]
Digital InputVideo
Audio Output
PC (RGB) InputD-sub 15pin × 1
Subwoofer OutputMore than 0 to 1000mV (rms) (+2 .2dBs), low impedance ( 80Hz when mo dulated 100%), RCA pin jack × 1
AV COMPULINK lll3.5mm mini jack × 1
Center channel Input500mV(rms) (-4dBs), high impedance,RCA pin jack × 1
Display Input / Output
(For system cable)
Remote Control UnitRM-C1257G (AA/R6 / UM-3 battery × 2)
Design & specifications are subject to change without notice.
1-2 (No.YA231)
VHF Low
VHF High
UHF
CATV
Sound IF
Receiver unit
Tweeter
Woofer
Component Video
[INPUT-1/2]
1125i / 750p
525p / 525i
S-Video
[INPUT-1/2/4]
Video
Audio
Audio
Variable
Fix
Control / Audio
Video
02ch - 06ch : 54MHz - 88MHz
07ch - 13ch : 174MHz - 216MHz
14ch - 69ch : 470MHz - 806MHz
54MHz - 804MHz
Low Band : 02 - 06, A-8 by 02 - 06&01
High Band : 07 - 13 by 07 - 13
Mid Band : A - I by 14 - 22
Super Band : J - W by 23 - 36
Hyper Band : W+1 - W+28 by 37 - 64
Ultra Band : W+29 - W+84 by 65 - 94, 100 - 125
Sub Mid Band : A4 - A1 by 96 - 99
181 Channels [Reception of channel A-5 (“95” of the TV set’s on-screen CABLE channel) is recommended for your TV set.]
45.75 MHz
41.25 MHz (4.5MHz)
Opearate: 567W, Stand by: 0.62W
Opearate: 25W, Stand by: 0.12W
9.5cm × 1cm, oval type × 2
2cm, round type × 2
13cm × 6.5cm, oval type × 2
HDMI connector × 1
(Digital-input terminal is not compatible with picture signals of computer signal)
Digita l : HDMI connector × 1
Anarog: 500mV(rms) (-4dBs), high i m pedance, RCA pin jack × 2
RCA pin jack × 2
More than 0 to 1000mV (rms) (+2.2dBs)
500mV(rms), (-4dBs), low impedance (400Hz when modulated 100%)
R/G/B : 0.7V (p-p), 75Ω
HD / VD : 1V (p-p) to 5V (p-p), high impedance
< Available signal >
VGA : 640 pixels × 480 pixels (Horizontal : 31.5kHz / Vertical : 60Hz)
XGA : 1024 pixels × 768 pixels (Horizontal : 42.0kHz / Vertical : 60Hz)
(1) The design of this product contains special hardware,
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. Service should be
performed by qualified personnel only.
(2) Alterations of the design or circuitry of the products should
not be made. Any design alterations or additions will void
the manufacturer's warranty and will further relieve the
manufacturer 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 Service
manual. The use of a substitute replacement which does
not have the same safety characteristics as the
recommended replacement part shown in the parts list of
Service manual may cause shock, fire, or other hazards.
(4) Don't short between the LIVE side ground and
ISOLATED (NEUTRAL) side ground or EARTH side
ground when repairing.
Some model's power circuit is partly different in the GND.
The difference of the GND is shown by the LIVE : ( ) side
GND, the ISOLATED (NEUTRAL) : ( ) side GND and
EARTH : ( ) side GND.
Don't short between the LIVE side GND and ISOLATED
(NEUTRAL) side GND or EARTH side GND and never
measure the LIVE side GND and ISOLATED (NEUTRAL)
side GND or EARTH side GND at the same time with a
measuring apparatus (oscilloscope etc.). If a bove note will
not be kept, a fuse or any parts will be broken.
(5) If any repair has been made to the chassis, it is
recommended that the PDP POWER SUPPLY setting
should be checked or adjusted.
(6) The high voltage applied to the PDP must conform with that
specified in Service manual. Excessive high voltage can
cause an increase in arcing and possible component
damage, therefore operation under excessive high voltage
conditions should be kept to a minimum, or should be
prevented. If severe arcing occurs, remove the AC power
immediately and determine the cause by visual inspecti on
(incorrect installation, cracked or melted high voltage
harness, poor soldering, etc.). To maintain the proper
components in the circuitry including the PDP must be the
exact replacements or alternatives approved by the
manufacturer of the complete product.
(7) Do not check high voltage by dra wing an arc. Use a high
voltage meter or a high voltage probe with a VTVM.
Discharge the picture tube before attempting meter
connection, by connecting a clip lead to the ground frame
and connecting the other end of the lead through a 10kΩ
2W resistor to the anode button.
(8) When service is required, obse rve the original lea d dress.
Extra precaution should be given to assure correct lead
dress in the high voltage circuit area. Where a short circuit
has occurred, those components that indicate evidence of
overheating should be replaced. Always use the
manufacturer's replacement components.
(9) Isolation Check (Safety for Electrical Shock Hazard)
After re-assembling the product, always perform an
isolation check on the exposed metal parts of the cabinet
(antenna terminals, video/audio input and output terminals,
Control knobs, metal cabinet, screw heads, earphone jack,
control shafts, etc.) to be sure the product is safe to operate
without danger of electrical shock.
a) Dielectric Strength Test
The isolation between the AC primary circuit and all metal
parts exposed to the user, particularly any exposed metal
part having a return path to the chassis should withstand a
voltage of 3000V AC (r.m.s.) for a period of one second. (.
. . . Withstand a voltage of 1100V AC (r.m.s.) to an
appliance rated up to 120V, and 3000V AC (r.m.s.) to an
appliance rated 200V or more, for a period of one second.)
This method of test requires a test equipment not generally
found in the service trade.
b) Leakage Current Check
Plug the AC line cord directly into the AC outlet (do not use
a line isolation transformer during this check.). Using a
"Leakage Current Tester", measure the leakage current
from each exposed metal part of the cabinet, particularly
any exposed metal part having a return path to the chassis,
to a known good earth ground (water pipe, etc.). Any
leakage current must not exceed 0.5mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.2mA AC
(r.m.s.).
Alternate Check Method
Plug the AC line cord directly into the AC outlet (do not
use a line isolation transformer during this check.). Use
an AC voltmeter having 1000Ω per volt or more
sensitivity in the following manner. Connect a 1500Ω
10W resistor paralleled by a 0.15µF AC-type capacitor
between an exposed metal part and a known good earth
ground (water pipe, etc.). 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 measure the AC voltage acro ss the
resistor. Now, reverse the plug in the AC outlet and
repeat each measurement. Any voltage measured must
not exceed 0.75V AC (r.m.s.). This corresponds to
0.5mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.3V AC
(r.m.s.). This corresponds to 0.2mA AC (r.m.s.).
AC VOLTMETER
(HAVING 1000 /V,
OR MORE SENSITIVITY)
0.15 F AC-TYPE
PLACE THIS PROBE
1500 10W
GOOD EARTH GROUND
ON EACH EXPOSED
ME TAL PART
(No.YA231)1-3
1.2 INSTALLATION
1.2.1 HEAT DISSIPATION
If the heat dissipation vent behind this unit is blocked, cooling efficiency may deteriorate and temperature inside the unit will rise. The
temperature sensor that protects the unit will be activated when internal temperature exceeds the pre-determined level and power will
be turned off automatically.
Therefore, please make sure pay attention not to block the heat dissipation vent as well as the ventil ation outlet behind the u nit and
ensure that there is room for ventilation around it.
1.2.2 INSTALLATION REQUIREMENTS
Ensure that the minimal distance is maintained, as specified below, between the unit with and the surrou nding walls, as well as the
floor etc. Install the unit on stable flooring or stands. Take precautionary measures to prevent the unit from tipping in order to protect
against accidents and earthquakes.
SPACE REQUIRED FOR INSTALLATION OF THE DISPLAY UNIT
200 mm
150 mm
50 mm
SPACE REQUIRED FOR INSTALLATION OF THE RECEIVER UNIT
100 mm
POWER
PLASMA DISPLAY RECEIVER
100 mm100 mm100 mm
1.2.3 FALL TIP PREVENTION MEASURES
Take precautionary measures to prevent the unit from falling or
tipping to protect against emergencies such as earthquakes as
well as accidents.
Fasten the supplied hook for tip fall prevention using the screws,
also supplied, behind the display unit, and use them together
with durable cords (to be purchased separately) to secure the
unit to a robust part such as the wall surface or pillars.
150 mm
50 mm
1-4 (No.YA231)
The supplied hook for tipfall prevention
1.3 PRECAUTIONS REGARDING PDP
1.3.1 PRECAUTIONS DURING NOTES FOR TRANSPORTATION
When transporting the unit, pressure exerted on the internal PDP
(Plasma Display Panel) due to improper handling (such as
tossing and dropping) may cause damages even when the uni t
is carefully packed. To prevent accidents from occurring during
transportation, pay careful attention prior to delivery such as
through explaining the handling instructions to transporters.
Ensure that the following requirements are met during
transportation, as the PDP of this unit is made of glass and
therefore fragile:
(1) Avoid vibrations and impacts
The unit may be broken if it is toppled sideways even when
properly packed. Ensure that the unit is carried by at lea st
2 persons and pay careful attention not to exert any
vibration or impact on it.
(2) Do not place equipment horizontally
Ensure that it is placed upright and not horizontally during
transportation and storage as the PDP is very vulnerable to
lateral impacts and may break easily under such
circumstances.
During transportation, ensure that the unit is loaded along
the traveling direction of travel of the vehicle, and avoid
stacking them on one another.
For storage, ensure that they are stacked in 2 layers or less
even when placed upright.
1.3.2 RESIDUAL IMAGE / BURN-IN ON SCREEN
Like CRTs, "burn-in" may occur when a same image is
continuously displayed over an extended period of time.
As this may also shorten the life span of the PDP. Therefore, turn
off the display when not in use, scroll the screen, make use of
screen-savers, or allow even distribution on the display by
inverting the brightness, switching to complementary colors or
inserting animated images at periodic intervals.
As burn-in is more likely to occur with high brightness and
contrast settings, try to use neutral gradations or medium tone
colors.
Burn-in does not occur in the case of animated images.
When switching to another image after continuous display of the
previous image, residual images may become prominent, as
luminance in a part of the display is higher than the other parts.
This is not a defect but is because due to the discharge surface
of the lighted portion has become being relatively activated and
its luminance higher than the unlighted parts.
1.3.4 OPTICAL FILTER (PANEL FILTER)
Avoid placing the unit under direct sunlight over a prolonged
period of time. This may cause the optical filter to deteriorate in
quality and color.
Clean the filter surface by wiping it softly lightly with outing
flannels a soft and lightly fuzz cloth (such as flannel).
Do not use solvents such as benzine or thinner to wipe the filter
surface. This may cause the filter to deteriorate in quality or the
coating on the surface to come off.
As the filter surface is fragile., do not scratch or hit it with hard
materials.
1.3.5 NOTES PRECAUTIONS FOR PEPLACEMENT OF
EXTERIOR PARTS
Take note of the following when replacing exterior parts (back
REAR COVER, FRONT PANEL, optical filter)
• Do not exert pressure on the front of the PDP (glass surface).
• Pay careful attention not to scratch or stain the front of the PDP
(surface) with hands.
• When replacing exterior parts, the front of the PDP should be
placed facing downward. Place a mat, etc. underneath to avoid
causing scratches to the front surface. However, never use
materials that are too soft (such as blanket cloth). If
replacement is made with the PDP surface facing downward
and in contact with the blanket, pressure may be exerted on
the PDP, thus causing damages to it.
1.3.3 INFRARED RAYS
Near Near-infrared rays (800nm to 1000nm) are emitted from the
front of the panel, and this may give rise to malfunctions in
infrared remote controls or communication systems placed near
it. In this case, avoid direct infrared rays (and reflected rays in
some cases) from the screen by either changing the direction of
the unit or other infrared systems or securing a longer keeping a
distance from the screen.
(No.YA231)1-5
SECTION 2
LOB OK FAN OK
SYNC M:OK S:OK HD:NG
TIM OK
MSM OK DIGI 0000
MEM OK AVSW OK
YC OK AIO OK
TUN OK GCR NG 1
IP OK RGB OK 8
DVI OK HDMI OK
SERVICE MENU
1.ADJUST
2.SELF_CHK
3.I2C STOP
SPECIFIC SERVICE INSTRUCTIONS
2.1 FEATURES
D.I.S.T. (Digital Image Scaling Technology)
This system uses line interpolation to double the number of
scanning lines and achieve high resolution, flicker-free picture.
SMART CAPTION
Smart caption will appear when you press the MUTING button,
only on channels where the broadcast contains CLOSED
CAPTION information.
SMART SOUND
Decreases high sound levels, giving a regulated sound level.
VIDEO STATUS
Expression of a favorite screen can be chosen by the VIDEO
STATUS function.
[STANDARD ↔ DYNAMIC ↔ THEATER ↔ GAME]
DIGITAL INPUT
Digital-in will display when any picture signal (480i/ 480p,
720p/ 1080i) in Digital-in is displayed.
2.2 SYSTEM SETTEING
V-CHIP
Since the V-CHIP is built in, it can choose, view and listen to a
healthy program.
MTS STEREO
The voice multiplex function of the MTS system is built in.
(MTS = Multi channel Television Sound system)
NATURAL CINEMA
Watching the movie or animation, press the Natural Cinema to
adjust the out line of the images to make thin more sharp.
BBE
High definition audio adds natural, clear and extraordinary
sound quality to any program.
VIDEO INPUT LABEL
This function is used to label video input connections for the
onscreen displays.
A.H.S.
Adds a more spacious surround sound. Music gives basic
effect and Movie for more effect.
Be sure to carry out the following operation at the end of
the procedure.
(1) Set to 0 minutes using the [SLEEP TIMER] key.
(2) Press the [VIDEO STATUS] key and [DISPLAY] key
simultaneously, then enter the SERVICE MODE.
(3) When the Main Menu is displayed, press [2] key to enter
the self check mode.
(4) Turn off the power by pressing the [POWER] key on the
remote control unit.
MAIN MENU SCREEN
SERVICE MENU
1.ADJUST
2.SELF_CHK
3.I2C STOP
SELF CHECK MODE SCREEN
LOB OK FAN OK
SYNC M:OK S:OK HD:NG
TIM OK
MSM OK DIGI 0000
MEM OK AVSW OK
YC OK AIO OK
TUN OK GCR NG 1
IP OK RGB OK 8
DVI OK HDMI OK
1-6 (No.YA231)
2.3 TECHNICAL INFORMATION
2.3.1 PDP STRUCTURE AND CHARACTERISTIC
This unit uses the flat type panel PDP (Plasma Display Panel), instead of the conventional CRT (Cathode Ray Tube),
as a display unit.
2.3.1.1PIXEL (CELL) ARRAY
PDP is constructed by sealing the xenon, which emits neon and ultraviolet rays for discharging purpose, in between the electrod es
lay on the front glass substrate and rear glass substrate.
One pixel is composed of 3 RGB cells, with cell pitch of 0.270mm (1 pixel 0.810mm) horizontally and 0.810mm vertically.
The cell is arrayed in each RGB color as shown in Fig. 1. One pixel is formed by interlacing each RGB color cell.
One cell size is 0.270mm horizontally and 0.810mm vertically.
Direction
Vertically
No.1
Pixel line
No.2
Pixel line
No.767
Pixel line
No.768
Pixel line
Horizontally
No.1
Pixel
sequence
B G R B G R
BG
B
B
(Horizontally) Pixel pitch
RBGR
G RBG R
GRBGR
0.810mm
No.2
Pixel
sequence
1 pixel
(1 dot)
Fig.1
B Cell
G
Cell
R Cell
No.1365No.1366
Pixel
sequence
Pixel
sequence
B GRBG R
BGRBGR
G RBG R
B
GRBGR
B
0.270mm
(Horizontally) Cell pitch
0.810mm (Vertically)
Pixel pitch (Cell pitch)
2.3.1.2PIXEL DEFECTS
Though PDP is made by means of ultra precise technology, there are cases whereby not all pixels (cell) will function properly. In some
cases, there may be defective pixels that do not light at all or the ones that always light on.
There are 3 types of Pixel defects, [Bright Dot Defects], [Dark Dot Defects] and [Flicker Dot Defects], as defined respectively in the
following:
(1) BRIGHT FAULT
In this pixel fault, a cell that should not light originally is lighting on and off.
For checking this pixel fault, input ALL BLACK SCREEN and find out the cell that is lighting on and off.
(2) DARK FAULT
In this pixel fault, a cell that should light originally is not lighting or lighting with the brightness twice as brighter as originally lighting.
For checking this pixel fault, input 100% of each R/G/B colour and find out the cell that is not lighting.
(3) FLICKER FAULT
In the pixel fault, a cell that should light originally or not light originally is flashing on and off.
For checking this pixel fault, input ALL BLACK SCREEN signal or 100% of each RGB colour and find out the cell that is flashing on
and off.
(No.YA231)1-7
2.3.2 MAIN CPU PIN FUNCTION [IC7601 : DIGITAL SIGNAL PWB ASS'Y / RECEIVER UNIT]
PinPin nameI/OFunction PinPin name I/OFunction
1VHOLD1I Data slice for main screen closed caption51NCO Not used
2HFLT1I/O LPF for main screen closed caption video input52NCO Not used
3NCO Not used53NCO Not used
4NCO Not used54NCO Not used
5DIGR0O R [0] for OSD55NCO Not used
6TB1inI AC power for timer clock56NCO Not used
7REMOI Remote control 57NCO Not used
8BYTEI Data bus width select [L = 16bit (fixed)]58NCO Not used
9CNVssI CPU programming mode select [Normal = L]59NCO Not used
10DIGG0O G [0 ] fo r OSD60NCO No t us ed
11DIGB0O B [0] for OSD61NCO Not used
12RESETI Reset for main CPU [Reset = L]62HSYNCI H. sync for OSD
13XoutO System clock osillation (crystal) : 16MHz63NCO Not used
14Vss- GND64VSYNCI V. sync for OSD
15XinI System clock osillation (crystal) : 16MHz65NCO Not used
16VccII 3.3V stand-by power supply66NCO Not used
17OSC1I Clock for OSD67NCO Not used
18OSC2O Not used : Clock for OSD68NCO Not used
19INT1I AV COMPULINK control69NCO Not used
20INT0I
21OUT1O Ys (blanking) for OSD71NCO Not used
22OUT2O YM (transparence) for OSD72NCO Not used
23NCO Not used73NCO Not used
24NCO Not used74NCO Not used
25NCO Not used75NCO Not used
26NCO Not used76NCO Not used
27CTA2/RTS2O Not used : Digital tuner control77NCO Not used
28CLK2O Not used : Digital tuner control78NCO Not used
29RxD2I Not used : Digital tuner control79NCO Not used
30TxD2O Not used : Digital tuner control80NCO Not used
31SDA2I/O Not used81NCO Not used
32DIGR1O R [1] for OSD82NCO Not used
33DIGG1O G [1 ] fo r OSD83NCO Not used
34DIGB1O B [1] for OSD84WAKEO Reset for sub(chassis) CPU
35TxD0I Data receive (serial) for external programming85CARD_DETI Not used : Card detection for ATSC digital tuner
36RxD0O Data transmission (serial) for external programming86
37CLK0I Clock for external programming87NCI/O Data for Inter IC (serial) bus control : memory
38RTS0O Busy for external programming [Operation = H]88NCO Clock for Inter IC (serial) bus control : memory
39P5.7I Not used89DIGR2O R [2] for OSD
40P5.6O Not used90DIGG2O G [2] for OSD
41HOLDI CPU programming mode select [Normal = H]91DIGB2O B [2] for OSD
42P5.4O Not used92NCO Not used
43P5.3O Not used93KEY2I
44P5.2O Not used94KEY1I
45P5.1O Not used95VHOLD2I Data slice for sub screen closed caption
46WRO CPU programming mode select [Normal = L]96HLF2I/O LPF for sub screen closed caption video input
47P4.7O
48P4.6I
49P4.5I Clock for sub(chassis) CPU communication (serial) 99VCCEI 5V stand-by power supply
50P4.4O Not used100 CVIN1I Video(Y) for main screen closed caption
Request for sub(chassis) CPU communication (serial data)
Data transmission for sub(chassis) CPU communication (serial)
Data receive for sub(chassis) CPU communication (serial)
70NCO Not used
POWER_SW
97CVIN2I Video(Y) for sub screen closed caption
98TVSETBI Test terminal [L Fixed]
I Not used : Power switch (mechanical) detection
Key scan data for front control button (MENU/CH+/CH-) KEY2
Key scan data for front control button (VOL+/VOL-) KEY1
1-8 (No.YA231)
2.3.3 SUB (CHASSIS) CPU PIN FUNCTION [IC7001 : DIGITAL SIGNAL PWB ASS'Y / RECEIVER UNIT]
PinPin name I/OFunction PinPin name I/OFunction
1LB_PROO Not used51BS_TXDO
2P_MUO Picture muting [Muting = H]52BS_RXDI Not used : Data receive for digital tuner communication
3JP_CSBO Not used (NC)53NCO Not used (NC)
4A_MUO Audio muting [Muting = H]54VREF+I 3.3V power supply
5M_MUO Audio muting (for AUDIO OUT) [Muting = H]55PDP_TXO
6PC_SELO Not used : RGB(PC) INPUT select 56PDP_RXI Data receive for SUB (DRIVE) CPU communication
7ON_TIMERO POWER INDICATOR (LED) brightness [LOW = L]57SDA0I/O Data for Inter IC (serial) bus : EEP-ROM (IC7002)
8ILA0O Not used : LCD back light lighting58SCL0O Clock for Inter IC (serial) bus : EEP-ROM (IC7002)
9ILA1O Not used : LCD panel overshoot refresh timing59SDA_DVII/O Data for Inter IC (serial) bus for panel communication
10ILA2O Not used60SCL_DVIO Clock for Inter IC (serial) bus for panel communication
11POW_LEDO POWER LED lighting [ON = H]61AVSS- GND
12WORDO Not used62DIGII_PHOTI Photo sensor for DIGITAL-IN illegal copy protection
13MI_CKI Clock for SUB (OSD) CPU communication63AGCI Not used
14MI_TXI Data receive for SUB (OSD) CPU communication 64EXT_YS1I N ot used
15MI_RXO Data transmission for SUB (OSD) CPU communication 65EXT_YS2I Not used
16MI_REQO
17VDDI 3.3V power supply67DIGI_PROO for DIGITAL-IN (HDMI)
18FOSCO Not used (NC)68GCR_RSTO Not used (NC)
19VSS- GND69GR_ONO Not used (NC)
20X1I Not used : Low speed oscillatior70SYNC_SELO Not used : Sync select for digital tuner
21X0O Not used : Low speed oscillatior71NCO Not used (NC)
22VDDI 3.3V power supply72NCO Not used (NC)
23OSC1I System clock osillation (crystal) : 16MHz73SBD5I/O
24OSC0O System clock osillation (crystal) : 16MHz74SBT5I
25MODEI Single chip mode 75NMII 3.3V power supply
26BS1.5CTLO Not used : Digital tuner power / reset control 76COMPI AV COMPULINK lll control
27A92RESO
28BS_RSTO Not used: Reset for Digital tuner power / reset control78VSYNCI V. sync pulse
29LIP_RSTO Not used: Reset for Sound delay (Lip sync)79WAKEI Reset for sub(chassis) CPU
30SOFT_OFFO Not used 80
31VMUTEI No use : Picture muting request from digital tuner81NCO Not used (NC)
32VOUTENBO No use : Video cutoff for digital tuner82RSTI Reset for MAIN CPU [Reset = L]
33MDR_CONI System cable connection monitor for PDP83VDDI 3.3V power supply
34AVDDI 3.3V power supply84SCL3AO Clock for Inter IC (serial) bus control
35BS_POWO Not used : Digital tuner power control 85SDA3AI/O Data for Inter IC (serial) bus control
DsyncSW2
36
37LB_POWO Not used : Power control for low bias line87SDA3BI/O Data for Inter IC (serial) bus control
38NCO Not used (NC)88
39HOTPLUGI Video communiation monitor for receiver unit (PDP)89DIGI_LRSW O For DIGITAL-IN (HDMI)
40MECA_SWI Mechanical monitor for POWER switch [Push = L]90DIGI_INTI Reset for HDMI process [Reset = L ]
41MAIN_POW O Main power control [ON = L]91DVI_RSTO Reset for DVI format conversion
42MSP_RSTO AUDIO OUT output mode select [VARIABLE = L]92VSS- G N D
43VREF-I Not used 93SCL5055O
44AFT2I Not used : AFT voltage for sub tuner94
45AFT1I AFT voltage for VHF/UHF tuner95SDA5055I/O Data for Inter IC (serial) bus : JCC5055 (DIST process)
46KEY2I Key scan data for front switch (MENU/CH+/CH-)96
47KEY1I Key scan data for front switch (VOL+/VOL-)97NCO Not used (NC)
48NCO Not used (NC)9815K/OTHO Main video select [Fixed H]
49NCO Not used (NC)99DsyncSW1O Sync select for DIGITAL-IN [Cotrolled with 36-pin]
50AC_INI AC power pulse for timer clock100 57 BUSYI Busy monitor for JCC5057 (New DIST process)
Data request for SUB (OSD) CPU communication [Request = L]
Reset for IC1001(3D YC SEP / COLOR DEMODULAT) [Reset = H]
O Sync select for DIGITAL-IN [Cotrolled with 99-pin]86SCL3BO Clock for Inter IC (serial) bus control
66VDDI 3.3V power supply
77REMOI Remote control
POWERGOOD
DIGI_SYNCSEL
VFORMATSEL
OSD_MODE_SEL
Not used : Data transmission for digital tuner communication
Data transmission for SUB (DRIVE) CPU communication
Not used : Data for writing on board (connect CN01P : for Fr ash ROM type)
Not used : Clock for writing on board (connect CN01P : for Frash ROM type)
I Power error detection [NG = H]
O Not used
Clock for Inter IC (serial) bus : JCC5055 (DIST process)
O Not used : Digital tuner clock control
O Not used : OSD mode select
(No.YA231)1-9
SECTION 3
DISASSEMBLY
3.1 DISASSEMBLY PROCEDURE (DISPLAY UNIT)
NOTE:
• When exchanging parts etc. with the front side (PDP side) fancing down, place a pr otection sheet under the DISPALY UNIT to
prevent scratches on the front side.
• It is advisable to take notes of the connecting locations (connector numbers) of the removed connectors.
3.1.1 REMOVING THE REAR COVER (Fig.1)
(1) Remove the power cord and the system cable.
(2) Remove the 11 screws [A] and the 14 screws [B], then
remove the REAR COVER.
3.1.2 REMOVING THE BACK COVER AND SPEAKER
HOLDER (Fig.1)
(1) Remove the 8 screws [C], then remove the BACK COVER.
(2) Remove the SPEAKER HOLDER.
3.1.3 REMOVING THE CHASSIS SHIELD BRACKET NAD
THE TERMINAL COVER (Fig.1)
• Remove the REAR COVER.
(1) Remove the 6 screws [D], then remove the CHASSIS
SHIELD BRACKET.
(2) Remove the 2 screws [E] and the 5 screws [F], then
remove the TERMINAL COVER.
3.1.4 REMOVING THE LINE FILTER PWB (Fig.1)
• Remove the REAR COVER.
• Remove the CHASSIS SHIELD BRACKET.
• Remove the TERMINAL COVER.
(1) Remove the 2 claws [G], then remove the LINE FILTER
INSULATOR.
(2) Disconnect the connector [CN8001
POWER UNIT.
(3) Remove the 2 screws [H] and the 1 screw [I], then remove
the LINE FILTER PWB.
] from the MAIN
3.1.6 REMOVING THE DISPLAY INTERFACE PWB (Fig.1)
• Remove the REAR COVER.
• Remove the CHASSIS SHIELD BRACKET.
• Remove the TERMINAL COVER.
(1) Disconnect the connector [CN00A
[CN00E
[CN00V
DISPLAY INTERFACE PWB .
(2) Remove the 3 screws [K], the 2 screws [L] and the 2 screws
[M] , then remove the DISPLAY INTERFACE PWB.
3.1.7 REMOVING THE CHASSIS BASE (Fig.1)
• Remove the REAR COVER.
• Remove the CHASSIS SHIELD BRACKET.
• Remove the TERMINAL COVER.
• Remove the LINE FILTER PWB.
• Remove the AUDIO PWB.
• Remove the DISPLAY INTERFACE PWB.
(1) Remove the 2 screws [N], then remove the CHASSIS
(3) Remove the 2 screws [i], then remove the Y DRIVE
LOWER PWB.
3.1.18.9 REMOVING THE X RIGHT BOTTOM PWB (Fig.3)
• Remove the PDP UNIT.
.
(1) Disconnect the connector [P2
/ [P403
] from the X-RIGHT BOTTOM PWB .
] / [P3] /[P7] / [P401] / [P402]
(2) Remove the 2 screws [j], then remove the X RIGHT
BOTTOM PWB.
3.1.18.10 REMOVING THE X CENTER BOTTOM PWB (Fig.3)
• Remove the PDP UNIT.
Disconnect the connectors [P1] / [P4] / [P7] / [
(1)
/ [
P407
] / [
P408
] / [
P425
] from the X-CENTER BOTTOM
P405
PWB.
(2) Remove the 2 screws [k] and the 1screw [k], then remove
the X CENTER BOTTOM PWB.
3.1.18.11 REMOVING THE X LEFT BOTTOM PWB (Fig.3)
• Remove the PDP UNIT.
(1) Disconnect the connectors [ P1
[P403
] / [P404] from the X LEFT BOTTOM PWB .
] / [P2] / [P401] / [P402] /
(2) Remove the 1 screw [m] and the 2 screws [n], then remove
the X-LEFT BOTTOM PWB.
] / [
P406
]
Y DRIVER UPPER PWB
1-14 (No.YA231)
X CENTER TOP PWB
X LEFT TOP PWB
h
Y SUS PWB
Y DRIVER LOWER PWB
X RIGHT TOP PWB
c
f
a
c
g
i
g
X LEFT BOTTOM PWB
LVDS CONTROL PWB
de
m
n
e
Z-SUS PWB
j
X RIGHT BOTTOM PWB
k
X CENTER BOTTOM PWB
Fig.3
3.1.19 REMOVING THE FRONT FILTER (Fig.4)
• Remove the REAR COVER.
• Remove the CHASSIS SHIELD BRACKET.
• Remove the TERMINAL COVER.
• Remove the CHASSIS BASE (with each PWB affixed on the
CHASSIS BASE).
• Remove the POWER CHASSIS BASE (with each PWB affixed
on the CHASSIS BASE).
• Remove the TEMP. SENSOR.
• Remove the PDP UNIT.
(1) Remove the 12 screws [u], then remove the FILTER
BRACKET.
(2) Remove the FRONT FILTER with enough care not to
damage it.
3.1.20 REMOVING THE TOP FRAME BRACKET, BOTTOM
FRAME BRACKET AND SIDE FRAME BRACKET (Fig.4)
• Remove the REAR COVER.
• Remove the CHASSIS SHIELD BRACKET.
• Remove the TERMINAL COVER.
• Remove the CHASSIS BASE (with each PWB affixed on the
CHASSIS BASE).
• Remove the POWER CHASSIS BASE (with each PWB affixed
on the CHASSIS BASE).
• Remove the TEMP. SENSOR.
• Remove the PDP UNIT.
• Remove the FRONT FILTER.
Remove the 6 screws
(1)
[v], then remove
the FRONT PANEL.
(2) Remove the 8 screws [w], then remove the SPACER.
(3) Remove the 4 screws [x], then remove the TOP FLAME
BRACKET, BOTTOM FLAME BRACKET and SIDE
FLAME BRACKET.
FILTER BRACKET
SIDE FLAME
u
SPACER
w
v
w
x
v
w
SIDE FLAME
TOP FLAME
w
BOTTOM FLAME
v
u
x
v
FILTER BRACKET
FRONT FILTER
Fig.4
FRONT PANEL
(No.YA231)1-15
3.2 DISASSEMBLY PROCEDURE (RECEIVER UNIT)
CAUTION AT DISASSEMBLY:
• Be sure to perform the SYSTEM SETTING on the pages 1-6, at the end of the procedure.
• Make sure that the power cord is disconnected from the outlet.
• Pay special attention not to break or damage the parts.
• When removing each board, remove the connectors as required. Taking notes of the connecting points (connecto r numbers)
makes service procedure manageable.
• Make sure that there is no bent or stain on the connectors before inserting, and firmly insert the connectors.
3.2.1 REMOVING THE TOP COVER
(1) Remove the 9 screws [A] then remove the TOP COVER.
3.2.2 REMOVING THE FRONT PANEL
• Remove the TOP COVER.
(1) Remove the 3 screws [B] and the 1 screw [C].
(2) Remove the 3 claws [D] and the 2 claws [E].
(3) Remove the FRONT PANEL toward you.
3.2.3 REMOVING THE FRONT CONTROL PWB
• Remove the TOP COVER.
• Remove the FRONT PANEL.
(1) Remove the [CN00F]
PWB.
(2) Remove the 4 screws [F], then remove the FRONT
CONTROL PWB.
3.2.4 REMOVING THE REAR COVER
• Remove the TOP COVER.
(1) Remove the 10 screws [G], the 2 screws [K], the 2 screws
[L] , the 2 screws [M] and 1 screw [N].
(2) Remove the REAR COVER toward you.
connector on the ANALOG SIGNAL
3.2.7 REMOVING THE DIGITAL SIGNAL PWB
• Remove the TOP COVER.
• Remove the REAR COVER.
(1) Remove the [CN001]
SIGNAL PWB.
(2) Remove the [CN003]
PWB.
(3) Remove the 4 screws [T], then remove the TUNER
HOLDER.
(4) Remove the 4 screws [U], then remove the DIGITAL
SIGNAL PWB.
CAUTION:
Make sure to perform the "SYSTEM SETTING" on page 1-6,
when DIGITAL SIGNAL PWB is replaced.
3.2.8 REMOVING THE REGULATOR PWB
• Remove the TOP COVER.
• Remove the FRONT PANEL.
(1) Remove the [CN00D]
PWB.
(2) Remove the [CN003]
REGULATOR PWB.
(3) Remove the 4 screws [V], then remove the REGULATOR
PWB.
/ [CN002] connectors on the ANLOG
connector on the REGULATOR
connector on the ANLOG SIGNAL
and [CN00B] connector on the
3.2.5 REMOVING THE RECEIVER PWB
• Remove the TOP COVER.
• Remove the REAR COVER.
(1) Remove the [CN00A]
RECEIVER PWB.
(2) Remove the RECEIVER PWB.
3.2.6 REMOVING THE REAR JACK PWB
• Remove the TOP COVER.
• Remove the REAR COVER.
(1) Remove the [CNJ0J1]
ANLOG SIGNAL PWB.
(2) Remove the 2 screws [S], then remove the REAR JACK
PWB.
/ [CN00T] connectors on the
/ [CNJ0J2] connectors on the
3.2.9 REMOVING THE SYSTEM POWER PWB
• Remove the TOP COVER.
(1) Remove the [CN00G]
SIGNAL PWB.
(2) Remove the [CN00B]
PWB.
(3) Remove the [CN00Q]
SYSTEM POWER PWB.
(4) Remove the 7 screws [W], then remove the SYSTEM
POWER PWB.
3.2.10 REMOVING THE ANLOG SYGNAL PWB
• Remove the TOP COVER.
• Remove the REAR COVER.
• Remove the RECEIVER PWB.
(1) Remove the [CN001]
[CN00G] / [CN00K] / [CNJ0J1] / [CNJ0J2] connector on the
ANLOG SIGNAL PWB.
(2) Remove the 2 screws [X], then remove the ANLOG
SYGNAL PWB.
/ [CN00K] connector on the ANLOG
connector on the REGULATOR
/ [CN0PW] connector on the
/ [CN002] / [CN00D] / [CN00F] /
1-16 (No.YA231)
TOP COVER
a
A
A
C
FRONT PANEL
b
T
A
DIGITAL HOLDER
RECEIVER PWB
DIGITAL SIGNAL PWB
c
d
X
Y
Y
V
U
SYSTEM POWER PWB
REGULATOR PWB
B
D
E
ANALOG SIGNAL
PWB
F
f
REAR JACK PWB
d
D
D
E
FRONT CONTROL PWB
c
Y
f
a
S
G
G
REAR COVER
N
K
b
L
M
M
Fig.9
(No.YA231)1-17
3.3 MEMORY IC REPLACEMENT
S001 PREPARE 000
NTSC3 1409 DYN H
SERVICE MENU
1.ADJUST
2.SELF_CHK
3.I2C STOP
• This model uses the memory IC.
• This memory IC stores data for proper operation of the video and drive circuits.
• When replacing, be sure to use an IC containing this (initial value) data.
3.3.1 MEMORY IC REPLACEMENT PROCEDURE
1. Power off
Switch off the power and disconnect the power plug from the AC outlet.
2. Replace the memory IC
Be sure to use the memory IC written with the initial setting values.
3. Power on
Connect the power plug to the AC outlet and switch on the power.
4. Receiving channel setting
Refer to the OPERATING INSTRUCTIONS and set the receive channels (Channels Preset) as described.
5. User setting
Check the user setting items according to the given in page later. Where these do not agree, refer to the OPERATING
INSTRUCTIONS and set the items as described.
6. SERVICE MODE setting
Verify what to set in the SERVICE MODE, and set whatever is necessary (Fig.1). Refer to the SERVICE ADJUSTMENT for setting.
3.3.2 SERVICE MODE SETTING
SERVICE MODE SCREEN
MAIN MENU SCREEN
SERVICE MENU
1.ADJUST
2.SELF_CHK
3.I2C STOP
SETTING ITEM
Setting itemsSettingsItem No.
Video sytetem settingAdjustS001- S039
Audio sytetem settingAdjustT001 - T010
Panel control sytetem settingFixedP001 - P010
Drive sytetem settingFixedD001 - D187
Main CPU system settingFixedZ001 - Z010
S001 PREPARE 000
NTSC3 1409 DYN H
1-18 (No.YA231)
ADJUSTMENT MODE SCREEN
Fig.1
3.3.3 SETTINGS OF FACTORY SHIPMENT
3.3.3.1BUTTON OPERATION3.3.3.2REMOTE CONTROL DIRECT OPERATION
Setting itemSetting position
POWEROff
CHANNELCABLE-02
VOLUME10
INPUTTV
3.3.3.3REMOTE CONTROL MENU OPERATION
1. PICTURE ADJUST
Customers can adjust the picture setting of menu screen as their
own like but the picture standard value during factory shipment is as
below.
< NTSC MODE >
Setting item
PICTURE+0500-0500
BRIGHT00000000
COLOR0000-0300
TINT00000000
DETAIL+05000000
COLOR TEMPERATURE
DIG. NOISE CLEAROFFOFFOFFOFF
NATURAL CINEMAAUTOAUTOAUTOAUTO
COLOR MANAGEMENT
DYNAMIC GAMMAONONONON
< HD MODE >
Setting item
PICTURE+0500-0500
BRIGHT00000000
COLOR0000-0300
TINT00000000
DETAIL+05000000
COLOR TEMPERATURE
DIG. NOISE CLEAROFFOFFOFFOFF
NATURAL CINEMAAUTOAUTOAUTOAUTO
COLOR MANAGEMENT
DYNAMIC GAMMAONONONON
SLEEP TIMEROFF
THEATER PROOFF
VIDEO STATUSDYNAMIC
TWIN
SOURCE
SOUND
EFFECT
2. SOUND ADJUST
BASS00
TREBLE00
BALANCE00
MTSSTEREO
3. CLOCK / TIMERS
ON / OFF TIMEROFF
4. INITIAL SETUP
TV SPEAKERON
AUDIO OUTFIX
DIGITAL-IN
DIGITAL-IN AUDIO
CENTER CH INPUT
NOISE MUTINGON
FRONT PANEL LOCKOFF
V1 SMART INPUTOFF
VIDEO INPUT LABELAll blank
POSITION ADJUSTMENTCenter
POWER INDICATORHIGH
IMAGE SHIFTSTD
LANGUAGEENG.
CLOSED CAPTIONOFF
AUTO SHUT OFFOFF
XDS IDON
V-CHIPOFF
AUTO DEMOOFF
Setting itemSetting position
HD FULL
LEFT SIDECABLE-02
RIGHT SIDEVIDEO-1
A.H.SOFF
BBEON
SMART SOUNDOFF
A.H.B.OFF
Setting itemSetting position
Setting itemSetting position
Setting itemSetting position
SIZE 1
DIGITAL
OFF
(No.YA231)1-19
3.4 REPLACEMENT OF CHIP COMPONENT
3.4.1 CAUTIONS
(1) Avoid heating for more than 3 seconds.
(2) Do not rub the electrodes and the resist parts of the pattern.
(3) When removing a chip part, melt the solder adequately.
(4) Do not reuse a chip part after removing it.
3.4.2 SOLDERING IRON
(1) Use a high insulation soldering iron with a thin pointed end of it.
(2) A 30w soldering iron is recommended for easily removing parts.
3.4.3 REPLACEMENT STEPS
1. How to remove Chip parts
2. How to install Chip parts
[Resistors, capacitors, etc.]
(1) As shown in the figure, push the part with tweezers and
alternately melt the solder at each end.
(2) Shift with the tweezers and remove the chip part.
[Transistors, diodes, variable resistors, etc.]
(1) Apply extra solder to each lead.
SOLDER
SOLDER
[Resistors, capacitors, etc.]
(1) Apply solder to the pattern as indicated in the figure.
(2) Grasp the chip part with tweezers and place it on the
solder. Then heat and melt the solder at both ends of the
chip part.
[Transistors, diodes, variable resistors, etc.]
(1) Apply solder to the pattern as indicated in the figure.
(2) Grasp the chip part with tweezers and place it on the
solder.
(3) First solder lead A as indicated in the figure.
(2) As shown in the figure, push the part with tweezers and
alternately melt the solder at each lead. Shift and remove
the chip part.
NOTE :
After removing the part, remove remaining solder from the
pattern.
1-20 (No.YA231)
A
B
C
(4) Then solder leads B and C.
A
B
C
SECTION 4
SERVICE MENU
1.ADJUST
2.SELF_CHK
3.I2C STOP
S001 PREPARE 000
NTSC3 1409 DYN H
ADJUSTMENT
4.1 ADJUSTMENT PREPARATION
(1) There are 2 ways of adjusting this TV : One is with the
REMOTE CONTROL UNIT and the other is the
conventional method using adjustment parts and
components.
(2) The adjustment using the REMOTE CONTROL UNIT is
made on the basis of the initial setting values. The
setting values which adjust the screen to the optimum
condition can be different from the initial setting
values.
(3) Make sure that connection is correctly made AC to AC
power source.
(4) Turn on the power of the TV and measuring instruments for
warning up for at least 30 minutes before starting
adjustments.
(5) If the receive or input signal is not specified, use the most
appropriate signal for adjustment.
(6) Never touch the parts (such as variable resistors,
transformers and condensers) not shown in the adjustment
items of this service adjustment.
4.2 PRESET SETTING BEFORE ADJUSTMENTS
Unless otherwise specified in the adjustment items, preset the
following functions with the REMOTE CONTROL UNIT.
Setting itemSettings
VIDEO STATUSSTANDARD
Picture adjustments00
COLOR TEMPERATURELOW
DIG. NOISE CLEAROFF
COLOR MANAGEMENTON
DYNAMIC GAMMAON
NATURAL CINEMAAUTO
Sound adjustments00
BBEOFF
A.H.SOFF
ASPECTFULL
4.3 MEASURING INSTRUMENT AND FIXTURES
• Oscilloscope
• Signal generator (Pattern generator)
[NTSC / 525i / 525p / 750p / 1125i / DIGITAL]
• TV audio multiplex signal generator
• Remote control unit
4.4 ADJUSTMENT ITEMS
POWER CIRCUIT
• PDP POWER VOLTAGE adjustment
VIDEO CIRCUIT
• 525i A-D OFFSET adjustment
• 1125i BRIGHTNESS adjustment
• 1125i A-D OFFSET adjustment
• SUB SCREEN A-D OFFSET adjustment
• WHITE BALANCE (HIGHLIGHT) adjustment
MTS CIRCUIT
• MTS INPUT LEVEL adjustment
• MTS SEPARATION adjustment
4.5 BASIC OPERATION OF SERVICE MODE
4.5.1 HOW TO ENTER THE SERVICE MODE
(1) Set to 0 minutes using the [SLEEP TIMER] key.
(2) Press the [VIDEO STATUS] key and [DISPLAY] key
simultaneously, then enter the SERVICE MODE.
(3) When the MAIN MENU SCREEN is displayed , press [1]
key to enter the adjustment mode.
NOTE:
• Before entering the SERVICE MODE, confirm that the
setting of TV / CATV switch of the REMOTE CONTROL
UNIT is at the "TV" side and the setting of VCR / DVD switch
is at the "VCR" side. If the switches have not been properly
set, you cannot enter the SERVICE MODE.
• When a number key other than the [1] to [3] key is pressed
in the MAIN MENU SCREEN, the other relevant screen may
be displayed.
This is not used in the adjustment procedure. Press the
[MENU] key to return to the MAIN MENU SCREEN.
Setting item numbers are displayed. For the setting item
names to be displayed, refer to "Initial setting value of
adjustment mode".
(7) SETTING VALUE (DATA)
The SETTING VALUE is displayed.
4.5.4 CHANGE AND MEMORY OF SETTING VALUE
SELECTION OF SETTING ITEM
• [CHANNEL (+/-)] key.
For scrolling up / down the setting items.
S001... ↔ T001... ↔ P001... ↔ D001... ↔ Z001...
• [SLEEP TIMER] key.
For switching to next items.
S001 → T001 → P001 → D001 → Z001
CHANGE OF SETTING VALUE (DATA)
• [VOLUME (+/-)] key.
For scrolling up / down the setting values.
MEMORY OF SETTING VALUE (DATA)
Changed setting value is memorized by pressing [MUTING]
key.
(2) SCREEN MODE
State of the SCREEN SIZE or MULTI PICTURE is displayed.
SINGLE SCREEN
1409: FULL
1609: PANORAMA, HD PANORAMA
1609S: CINEMA, CINEMA ZOOM
FULL: REGULAR
MULTI SCREEN
M12: FREEZE screen
FRZ: TWIN screen
STD: INDEX screen
(3) VIDEO STATUS
STD: STANDARD
DYN: DYNAMIC
TH: THEATER
GAME: GAME
(4) WHITE BALANCE
H: HIGH
M: LOW
(5) SETTING ITEM NAME
Setting item name are displayed. The setting item numbers to
be displayed are listed below.
Item No.Setting item
S001 - S039Video sytetem setting
T001 - T010Audio sytetem setting
P001 - P010Panel control sytetem setting
D001 - D187Drive sytetem setting
Z001 - Z010Main CPU system setting
4.5.5 SERVICE MODE SELECT KEY LOCATION
VCR/DVD
switch
TV/CATV
switch
DISPLAY
SLEEP
TIMER
VIDEO
STATUS
MUTING
VOLUME -
MENU
RM-C1257G
POWER
NUMBER
CHANNEL +
VOLUME +
BACK
CHANNEL -
1-22 (No.YA231)
4.6 INITIAL SETTING VALUES IN THE SERVICE MODE
• Perform fine-tuning based on the "initial values" using the remote control when in the Service mo de.
• The "initial values" serve only as an indication rough standard and therefore the values with which optimal display can be achieved
may be different from the default values. But, don't change the values that are not written in "ADJUSTMENT PROCEDURE". They
are fixed values.
4.6.1 VIDEO SYSTEM SETTING4.6.2 AUDIO SYSTEM SETTING
(1) Set “VIDEO STATUS” to STANDARD.
(2) Set “ASPECT” to FULL.
(3) Set "COLOR TEMPERATURE" to LOW.
(4) Set "MULTI SCREEN" to TWIN.
S016: RT CB OF
(Sub screen cb offset)
S017: RT CR OF
(Sub screen cr offset)
(5) Receive a NTSC 30% all white pattern signal on
the Right screen. At the same time, set the Left
screen in VIDEO-1 mode (No signal).
(6) Select "1.ADJUST" from the SERVICE MODE.
(7) Set < S030 > (R DRIVE), < S031> (G DRIVE)
S030: R DRIVE(Red drive)
S031: G DRIVE(Green drive)
S032: B DRIVE(Blue drive)
and < S032 > (B DRIVE) to "133".
(8) Set < S001 > (adjustment setting mode change)
to set “017“ and it change to the sub screen A-
D offset adjustment setting mode.
(9) Adjust < S016 > (Sub screen cb offset) to
minimize the blue noise in the upper half of the
screen.
If you select an adjustment item < S016 >,
then the screen automatically turn to twin
pictures mode.
(10) Adjust < S017 > (Sub screen cr offset) to
minimize the red noise in the upper half of the
screen.
(11) Readjust < S016 > and < S017 > to set the
upper half of the screen to be the blackest. (See
Fig.9)
(12) Set < S001 > to set “000“ and it change to the
normal mode.
(13) Press the [MUTING] key to memoirze the set
value.
[1.ADJUST]
S030: R DRIVE (Red drive)
S031: G DRIVE (Green drive)
S032: B DRIVE (Blue drive)
(1) Receive a NTSC 75% all white signal.
(2) Set "VIDEO STATUS" to STANDARD.
(3) Set "ASPECT" to FULL.
(4) Select "COLOR TEMPERATURE" to LOW.
(5) Select "1.ADJUST" from the SERVICE MODE.
(6) Adjust to keep one of < S030 > (Red drive),
< S031 > (Green drive) or < S032 > (Blue
drive) unchanged, then lower the other two
so that the all-white screen is equally white
throughout.
NOTE:
Set one or more of < S030 >, < S031 >, and
< S032 > to "133".
(7) Check that white balance is properly tracked
from low light to high light. If the white balance
tracking is deviated, adjust to correct it.
(8) Press the [MUTING] key to memoirze the set
value.
1-28 (No.YA231)
4.7.3 MTS CIRCUIT
Item
MTS INPUT
LEVEL
Remote
control unit
Signal
generator
MTS
SEPARATION
TV audio
multiplex
signal
generator
Oscilloscope
Remote
control unit
L-Channel
signal waveform
1 cycle
Measuring
instrument
Test pointAdjustme nt partDescription
[1.ADJUST]
T001: IN LEVEL
(1) Receive the any broadcast.
(2) Select "1.ADJUST" from the SERVICE MODE.
(3) Verify that the < T001 > (IN LEVEL) is set at its
initial setting value.
(4) Press the [MUTING] key to memorize the set
value.
L OUT
R OUT
[1.ADJUST]
T002: LOW SEP
T003: HI SEP
(1) Input the stereo L signal (300Hz) from the TV
audio multiplex signal generator to the antenna
terminal.
(2) Connect an oscilloscope to L OUT pin of the
AUDIO OUT, and display one cycle portion of
the 300Hz signal.
(3) Change the connection of the oscilloscope to R
OUT pin of the AUDIO OUT, and enlarge the
voltage axis.
(4) Select "1.ADJUST" from the SERVICE MODE.
(5) Set the initial setting value of the < T002 > (LOW
R-Channel
crosstalk portion
Minimum
SEP).
(6) Adjust the < T002 > so that the stroke element
of the 300Hz signal will become minimum.
(7) Change the signal to 3kHz, and similarly adjust
the < T003> (HI SEP).
(8) Press the [MUTING] key to memorize the set
value.
(No.YA231)1-29
SECTION 5
SERVICE MENU
1.ADJUST
2.SELF_CHK
3.I2C STOP
LOB OK FAN OK
SYNC M:OK S:OK HD:NG
TIM OK
MSM OK DIGI 0000
MEM OK AVSW OK
YC OK AIO OK
TUN OK GCR NG 1
IP OK RGB OK 8
DVI OK HDMI OK
FAN OK ALM OK
TMP OK
ATP OK ASH OK
PNL OK MEM OK
TMP OK AIO OK
TROUBLESHOOTING
5.1 SELF CHECK FEATURE
5.1.1 OUTLINE
This unit comes with the "Self check" feature, which checks the
operational state of the circuit and displays/saves it during
failure.Diagnosis is performed when power is turned on, and
information input to the main microcomputer is monitored at all
time.Diagnosis is displayed in 2 ways via screen display and LED
flashes. Failure detection is based on input state of I
2
C bus and
the various control lines connected to the main microcomputer.
5.1.2 HOW TO ENTER THE SELF CHECK MODE
Before entering the Self check Display mode, confirm that the
setting of TV / CATV SW of the REMOTE CONTROL UNIT is at
the "TV" side and the setting of VCR / DVD SW is at the "VCR"
side. If the switches have not been properly set, you cannot enter
the Self check Display mode.
(1) Set to 0 minutes using the [SLEEP TIMER] key.
(2) Press the [VIDEO STATUS] key and [DISPLAY] key
simultaneously, then enter the service mode.
(3) Press the [2] key (SELF_CHK) before the service mode
screen disappears.
(4) Press the [SLEEP TIMER] key to enter Page 2 of the SELF
CHECK MODE.
• When the [RETURN +] key pressed, the first page
change screen.
NOTE:
When a number key other than the [1] to [3] key is
pressed in the SERVICE MODE screen, the other
relevant screen may be displayed.
This is not used in the adjustment procedure. Press the
[MENU] key to return to the SERVICE MENU.
5.1.3 HOW TO EXIT THE SELF CHECK MODE
To Save Failure History:
Turn off the power by unplugging the AC power cord plug when
in the Self check display mode.
To Clear (Reset) Failure History:
Turn off the power by pressing the [POWER] key on the remote
control unit when in the Self check display mode.
5.1.4 FAILURE HISTORY
Failure history can be counted up to 9 times for each item. When
the number exceeds 9, display will remain as 9. Failure history
will be stored in the memory unless it has been deleted.
NOTE:
Only SYNC (with/without sync signals) will be neither counted
nor stored.
5.1.5 POINTS TO NOTE WHEN USING THE SELF CHECK
FEATURE
In addition to circuit failures (abnormal operation), the following
cases may also be iagnosed as "Abnormal" and displayed and
counted as "NG".
(1) Temporary defective transmissi ons across circuits due to
pulse interruptions
(2) Misalignment in the on/off timing of power for I
2
C bus
(VCC) when turning on/off the main power.
Diagnosis may be impeded if a large number of items are
displayed as "NG". As such, start Self check check only after 3
seconds in the case of receivers and 5 seconds in the case of
panels upon turning on the power. If recurrences are expected,
ensure to clear (reset) the failure history and record the new
diagnosis reults.
MAIN MENU SCREEN
SERVICE MENU
1.ADJUST
2.SELF_CHK
3.I2C STOP
SELF CHECK MODE SCREEN (Page 1)
LOB OK FAN OK
SYNC M:OK S:OK HD:NG
TIM OK
MSM OK DIGI 0000
MEM OK AVSW OK
YC OK AIO OK
TUN OK GCR NG 1
IP OK RGB OK 8
DVI OK HDMI OK
Item
CHECK
Normality=OK
Abnormality=NG
SELF CHECK MODE SCREEN (Page 2)
FAN OK ALM OK
TMP OK
ATP OK ASH OK
PNL OK MEM OK
TMP OK AIO OK
1-30 (No.YA231)
Item
* As "SYNC" is not counted, the number of failures not displayed.
CHECK
Normality=OK
Abnormality=NG
Fig.1
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