JVC I'Art Palette PD-42V475 User manual

SERVICE MANUAL
COPYRIGHT © 2004 Victor Company of Japan, Limited No.YA099
2004/7
PDP COLOR TELEVISION
PD-42V475/S
PD-42V485/S
TABLE OF CONTENTS
1 PRECAUTION ......................................................................................................................................................... 1-3
2 SPECIFIC SERVICE INSTRUCTIONS ...................................................................................................................... 1-6
3 DISASSEMBLY ..................................................................................................................................................... 1-11
4 ADJUSTMENT ...................................................................................................................................................... 1-22
5 TROUBLESHOOTING ........................................................................................................................................... 1-31
BASIC C
FP2
HASSIS
POWER
DISPLAY
SLEEPTIMER
LIGHT
FREEZE
THEATERPRO
VIDEOSTATUS
1
7
4
TUNE
3
9
6
RETURN+
MUTING
MENU
OK
BACK
2
8
0
5
CH +
VOL
ÐVOL
+
REC
OPEN/CLOSE STILL/PAUSE
STOP PAUSE
PLAY FFREW
TV CATV VCR DVD
VCRCHANNEL
PREV NEXT TV/VCR
VCR/DVD
POWER
SOUND
CH Ð
TV
RM-C1257G
ASPECT
INDEX
SWAP SELECT
MULTISCREEN
INPUT
C.C.
TWIN

1-2 (No.YA099)
Dimensions (W x H x D) 104.5cm x 79.1cm x 30.8cm (41-1/4” x 31-1/4” x 12-1/4”) [Included stand]
104.5cm x 72.9cm x 11.0cm (41-1/4” x 28-3/4” x 4-3/8”) [TV only]
Mass 48.3kg (106.3
l bs) [Included stand]
38.3kg (84.33 l bs) [TV only]
TV RF System CCIR (M)
Color System NTSC
Sound System BTSC (Multi channel sound)
TV Receiving Channels VHF Low 02ch to 06ch : 54MHz to 88MHz
and Frequency VHF High 07ch to 13ch : 174MHz to 216MHz
UHF 14ch to 69ch : 470MHz to 806MHz
CATV 54MHz to 804MHz
Low Band : 02 to 06, A-8 by 02 to 06&01
High Band : 07 to 13 by 07 to 13
Mid Band : A to I by 14 to 22
Super Band : J to W by 23 to 36
Hyper Band : W+1 to W+28 by 37 to 64
Ultra Band : W+29 to W+84 by 65 to 94, 100 to 125
Sub Mid Band : A4 to A1 by 96 to 99
TV/CATV Total Channel 180 channel
Intermediate Frequency VIF 45.75MHz
SIF 41.25MHz (4.5MHz)
Color Sub Carrier Frequency 3.58MHz
Power Input AC120V, 60Hz
Power Consumption Operate : 364W, Stand by: 0.94W
Plasma Display Panel (PDP) QLE0028-001
42V wide aspect (16:9)
Screen Size Visible size : 107.5cm (Diagonel) / 93.3 cm x 53.3 cm (H x V)
Display Pixels H: 852 pixels / V: 480 pixels [W-VGA]
Speaker 6.6cm round x4 (Oblique cone)
Audio Power Output 10W + 10W
Antenna terminal (VHF / UHF) F-type connector, 75 Ω unbalanced, coaxial
Video / Audio Iutput S-Video [1/3/4] Mini-DIN 4 pin connector x3
[1/2/3/4] Y: 1V(p-p), 75 Ω , positive (negative sync)
C: 0.286V(p-p), (Burst signal), 75 Ω
Video 1V(p-p), 75 Ω , negative sync, RCA pin jack x4
Audio 500mV(rms) (-4dBs), high impedance, RCA pin jack x8
Component video [1/2] RCA pin jack x 3
1125i / 750p Y : 1V(p-p), 75
Ω , 3-value sync : ±0.35V(p-p)
Pb/Pr : ±0.35V(p-p), 75 Ω
525i / 525p Y : 1V(p-p), 75 Ω , positive (negative sync)
Pb / Pr : 0.7V(p-p), 75 Ω
Audio Output RCA pin jack x2
VARI More than 0 - 1000mV(rms) (+2.2dBs)
FIX 500mV (rms) (-4dBs), low impedance (400Hz when modulated 100%)
Center Channel Input 500mV (rms), low impedance, RCA pin jack x 1
PC (RGB) Input D-sub 15pin x 1
R/G/B : 0.7V (p-p), 75
Ω
HD / VD : 1V (p-p) to 5V (p-p), high impedance
<Available signal>
VGA : 640 pixels x 480 pixels (Horizontal : 31.5kHz / Vertical : 60Hz)
AV COMPULINK ΙΙΙ 3.5mm mini jack x1
Digital-in HDMI connector x 1
(Digital-in terminal is not compatible with picture signals of personal computer.)
Video Digital : HDMI connector
Audio Digital : HDMI connector
Analog : 500mV(rms) (-4dBs), high impedance, RCA pin jack x 2
Remote Control Unit RM-C1257G (AA/R6 TYPE battery x 2)
SPECIFICATION
Contents
Design & specifications are subject to change without notice.
Items

(No.YA099) 1-3
1.1 SAFETY PRECAUTIONS
(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 above 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 inspection
(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 drawing 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, observe the original lead 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.).
Alternative 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 1000 ohms per volt or
more sensitivity in the following manner. Connect a
1500Ω10W 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 across
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 1000Ω/V,
OR MORE SENSITIVITY)
PLACE THIS PROBE
ON EACH EXPOSE
D
METAL PART
1500Ω10W
0.15µF AC-TYPE
GOOD EARTH GROUND
SECTION 1
PRECAUTION

1-4 (No.YA099)
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 ventilation outlet behind the unit
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 surrounding 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
200 mm 200 mm
50 mm
50 mm
150 mm
150 mm
200 mm or
more
200 mm
or more
50 mm or more
50 mm or more
150 mm
or more
150 mm or
more
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.
The supplied hook for tipfall prevention

(No.YA099) 1-5
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
unit 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
least 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.
1.3.3 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.
1.3.4 OPTICAL FILER (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 REPLACEMENT 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.

1-6 (No.YA099)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 FEATURES
2.1.1 HIGH-DEFINITION IMAGE TECHNOLOGY (DIST)
•DIST (Digital Image Scaling Technology)
Employs an interpolation method that doubles the scanning
lines to realize 480-line flickerfree picture making it especially
suitable for reproducing high-resolution pictures even on large-
screen displays.
2.1.2 MAIN FUNCTION
• DIGITAL NOISE CLEAR
With digital noise clear, this helps take our static or noise from
a channel that may not be coming in clearly.
•NATURAL CINEMA
Natural cinema corrects the problem of blurred edges which
may occur when viewing a program originally shot on film (such
as motion pictures) or animation. If you notice blurring at the
edges of these programs, choose NATURAL CINEMA and set
it to AUTO.
• COLOR MANAGEMENT
This TV supports the COLOR MANAGEMENT function to ensure
dull colors are compensated to produce natural hues.
• DYNAMIC GAMMA
JVC's Dynamic Gamma Circuitry (DGC) makes it easier to
see dark areas when a picture has many dark areas, and
makes it easier to see the bright areas when a picture has
many bright areas. DGC is turned on, DGC analyzes and
adjusts the total level of picture brightness balance, especially
in dark areas where the level of greyscale is often lost, turning
completely to black.
•MTS (Multi-Channel Television Sound)
MTS technology allows several audio signals to be broadcast
at once, giving you a choice in what you wish to hear with a TV
program. In addition to mono or stereo sound, an MTS
broadcast may also include a second audio program (SAP).
•THEATER PRO D6500K
The TheaterPro D6500K color temperature technology function
makes sure that the video you watch is set to the standard
color temperature, so that what you see is as true to what the
film to video editors intended it to be.
•V-CHIP
Your TV is equipped with V-Chip technology which enables
you to block channels or content that you feel to be inappropriate
for children, based on US and Canada rating guidelines.
V-Chip has no effect on video signals from a DVD discs, VCR
tapes or Camcorder connection.
•AUTO SHUT OFF
This function automatically shuts off your TV when there is no
signal from the channel the TV is on.
2.1.3 ASPECT CONTROL
The screen size can be changed according to the picture aspect
ratio.
•ASPECT function
Desired screen size (PANORAMA / CINEMA / FULL / HD
PANORAMA / REGULAR / CINEMA ZOOM) can be selected.
2.1.4 MULTI-SCREEN FUNCTION
•Twin-pictures function
With the function, two pictures can be displayed at the Twin
pictures mode.
•Index-picture function
With this function, one of index-picture (12 pictures) can be
displayed at the same time.
•Freeze function
The images that are currently seen can be viewed on the memo
screen (still picture).
It is convenient for taking down notes like application address
and recipe of cooking program etc, while enjoying the current
program.
Item PD-42V475/S PD-42V485/S
FRONT PANEL COLOR SILVER BLACK
SMART SOUND NO YES
SMART CAPTION NO YES
2.2 MAIN DIFFERENCE LIST

(No.YA099) 1-7
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.
2.3.1.1 PIXEL (CELL) ARRAY
PDP is constructed by sealing the xenon, which emits neon and ultraviolet rays for discharging purpose, in between the electrodes
lay on the front glass substrate and rear glass substrate.
One pixel is composed of 3 RGB cells, with cell pitch of 0.365mm (1 pixel 1.095mm) horizontally and 1.110mm 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 0.365mm horizontally and 1.110mm vertically.
B G R B G R
BGRBGR
GRBG R
GRBGR
B
B
BGRBG R
BGRBGR
GRBG R
GRBGR
B
B
No.1
Pixel
sequence
No.2
Pixel
sequence Pixel
sequence
No.851 No.852
1.110 mm
Pixel
sequence
No.1
Pixel line
No.2
Pixel line
Horizontally
Vertically
Direction
1.095mm
(Horizontally) Pixel pitch
0.365mm
(Horizontally) Cell pitch
(Vertically)
Pixel pitch
(Cell pitch)
1 pixel
(1 dot)
No.479
Pixel line
No.480
Pixel line
B Cell
G Cell
R Cell
Fig.1
2.3.1.2 PIXEL 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 Dot Defects
Bright dot defect is a pixel cell that lights though it should not light.
The presence of bright dot defects can be confirmed by inputting a full black signal (pattern).
(2) Dark Dot Defects
Dark dot defect is a pixel cell that does not light, though it should light.
The presence of dark dot defects can be confirmed by inputting a 100% full white signal (pattern).
(3) Flicker Dot Defects
Flicker dot defect is a pixel cell that blinks though it should light or not light.
The presence of flicher dot defects can be confirmed by inputting a full black signal (pattern).

1-8 (No.YA099)
61 GND - GND
62 DIN_PH I Optical DET. out
63 ATSC_REC I Not used
64 YS1 I Not used
65 YS2 I Not used
66 3.3V I 3.3V
67 DIN_PRO O Digital-in voltage detection
[Detection : H]
68 NC O Not used
69 NC O Not used
70 NC O Not used
71 NC O Not used
72 NC O Not used
73 SBD5 I/O Flash writing for chassis CPU
74 SBT5 I Flash writing for chassis CPU
75 3.3V I 3.3V
76 NC I Not used
77 REMOCON I Remote control
78 V_SYNC I Vertical sync
79 WAKEUP_SHM I Sleep state release for chassis
CPU [Relese : L]
80 POWERGOOD I Power error detection [Detection : H]
81 REC_LED O Stand-by power LED control
[Stand-by :H]
82 RST I Chassis CPU reset [Reset : L]
83 3.3V I 3.3V
84 SCL3A O I2C bus clock (for 3D YC separation,
gamma correction / color
management / RGB process / OSD
composition, U / V frontend, HDMI
driver)
85 SDA3A I/O I2C bus data (for 3D YC separation,
gamma correction / color
management / RGB process / OSD
composition, U / V frontend, HDMI
driver)
86 SCL3B O I2C bus clock (for video / audio
select, color demod. / sync sep.,
3 line comb filter, component
video / audio select, sync sep. /
SW / detect, MTS demod. /
surround / audio control)
87 SDA3B I/O I2C bus data (for video / audio
select, color demod. / sync sep.,
3 line comb filter, component
video / audio select, sync sep. /
SW / detect, MTS demod. /
surround / audio control)
88 DIN_sel O Not used
89 LR_SW O Digital-in control
90 DIN_INT O Digital-in reset [Reset : H]
91 DVI_RST O Not used
92 GND - GND
93 SCL5055 O I2C bus clock (for DIST)
94 NC O Not used
95 SDA5055 I/O I2C bus data (for DIST)
96 NC O Not used
97 NC O Not used
98 15K/OTH O Y signal select for 3D YC separation
[525i : H / other : L]
99 DsyncSW1 O Not used
100 JCC5057_BUSY I Busy for gamma correction / color
management / RGB process / OSD
composition [Busy : H]
Pin name I/O Function
Pin
No.
Pin name I/O Function
Pin
No.
2.3.2 CHASSIS CPU [DIGITAL SIGNAL PWB : IC7001] PIN FUNCTION
1 NC O Not used
2 P_MU O Video muting [Muting : H]
3 FUNC_LED O Not used
4 A_MU O Audio muting [Muting : H]
5 M_MU O Not used
6 PC_SW O PC input select [ON : H]
7 DIMMER_LED O Power LED dimmer control
[Low dimmer : L]
8 NC O Not used
9 NC O Not used
10 NC O Not used
11 POW_LED O Power LED control [ON : H]
12 WORD O Programming control
13 SBT2 I Clock for main CPU communication
14 SBI2 I Data receive for main CPU
communication
15 SBO2 O Data transmission for main CPU
communication
16 REQ O Request for main CPU
communication
17 3.3V I 3.3V
18 NC O Not used
19 GND - GND
20 3.3V I 3.3V
21 NC O Not used
22 3.3V I 3.3V
23 OSCI I 16MHz for system clock
24 OSCO O 16MHz for system clock
25 3.3V I 3.3v
26 NC O Not used
27 A92_RST O 3D YC separation reset [Reset : L]
28 NC O Not used
29 LIP_RST O Not used
30 NC O Not used
31 NC I Not used
32 NC O Not used
33 MDR_CON I Not used
34 3.3V I 3.3V
35 NC O Not used
36 DsyncSW2 O Digital sync signal select
[Digital sync : L]
37 NC O Not used
38 NC O Not used
39 HOTPLUG I Not used
40 MECA_SW I Power switch monitor [ON : L]
41 MAIN_POW O Main power control [ON : L]
42 VARI / FIX O Audio out select [VARI : L / FIX : H]
43 0V - GND
44 NC I Not used
45 AFT1 I AFT detection [Detection : H]
46 NC I Not used
47 NC I Not used
48 NC O Not used
49 NC O Not used
50 NC I Not used
51 NC O Not used
52 NC I Not used
53 NC O Not used
54 3.3V I 3.3V
55 PDP_TX O PDP communication for panel CPU
56 PDP_RX I PDP communication for panel CPU
57 SDA0 I/O I2C bus data (for chassis memory)
58 SCL0 O I2C bus clock (for chassis memory)
59 SDA_DVI I/O Not used
60 SCL_DVI I/O Not used

(No.YA099) 1-9
60 NC I/O Not used
61 NC I/O Not used
62 HSYNC I Horizontal sync for OSD
63 NC I/O Not used
64 VSYNC I Vertical sync for OSD
65 NC I/O Not used
66 NC I/O Not used
67 NC I/O Not used
68 NC I/O Not used
69 NC I/O Not used
70 NC I/O Not used
71 NC I/O Not used
72 NC I/O Not used
73 NC I/O Not used
74 NC I/O Not used
75 NC I/O Not used
76 NC I/O Not used
77 NC I/O Not used
78 NC I/O Not used
79 NC I/O Not used
80 NC I/O Not used
81 NC I/O Not used
82 NC I/O Not used
83 NC I/O Not used
84 WAKE O Sleep state release for chassis
CPU [Relese : L]
85 CARD_DET I/O Not used
86 POWER_SW I Main power switch [ON : L]
87 SDAM O I2C bus clock (for main memory)
88 SCLM I/O I2C bus Data (for main memory)
89 DIGR2 O Red for OSD
90 DIGG2 O Green for OSD
91 DIGB2 O Blue for OSD
92 NC I/O Not used
93 KEY2 I Key scan data 1 [ON :H]
94 KEY1 I Key scan data 2 [ON :H]
95 VHOLD2 I Data slicer (closed caption) for sub
96 HLF2 I/O LPF of video signal (closed caption)
97 CVIN2 I Composite video input for closed
caption (SUB-CCD)
98 TVSETB - GND
99 VCCE - 5V
100 CVIN1 I Composite video input for closed
caption (MAIN-CCD)
1 VHOLD1 I Data slicer (closed caption) for main
2 HFLT1 I/O LPF of video signal (closed caption)
3 NC I/O Not used
4 NC I/O Not used
5 DIGR0 O Red for OSD
6 TB1in I Clock information
7 REMO I Remote control
8BYTE -GND
9 CNVss I CPU mode select [CPU : L / Writing : H]
10 DIGG0 O Green for OSD
11 DIGB0 O Blue for OSD
12 RESET I Main CPU reset [Reset : L]
13 Xout O 16MHz for system clock
14 Vss - GND
15 Xin I 16MHz for system clock
16 Vccl I 3.3V
17 OSC1 I Clock input for OSD
18 OSC2 O Not used
19 INT1 I AV COMPULINK ΙΙΙ
20 INT0 I Request for chassis CPU
communication
21 OUT1 O YS for OSD
22 OUT2 O YM for OSD
23 NC I/O Not used
24 NC I/O Not used
25 NC I/O Not used
26 NC I/O Not used
27 CTA2/RTS2 I/O Not used
28 CLK2 I/O Not used
29 RxD2 I/O Not used
30 TxD2 I/O Not used
31 SDA2 I/O Not used
32 DIGR1 O Red for OSD
33 DIGG1 O Green for OSD
34 DIGB1 O Blue for OSD
35 TxD0 I Programming control
36 RxD0 O Flash writing for main CPU
37 CLK0 I Programming clock
38 RTS0 I/O Busy for flash writing composition
[Busy : H]
39 P5.7 I Not used
40 P5.6 O Not used
41 HOLD I Main CPU hold for flash writing
[Hold : L]
42 P5.4 O Not used
43 P5.3 O Not used
44 P5.2 O Not used
45 P5.1 O Not used
46 WR O CPU mode select [CPU : L / Writing : H]
47 P4.7 O Data transmission for chassis CPU
communication
48 P4.6 I Data receive for chassis CPU
communication
49 P4.5 O Clock for chassis CPU
communication
50 P4.4 I/O Not used
51 NC I/O Not used
52 NC I/O Not used
53 NC I/O Not used
54 NC I/O Not used
55 NC I/O Not used
56 NC I/O Not used
57 NC I/O Not used
58 NC I/O Not used
59 NC I/O Not used
Pin name I/O Function
2.3.3 MAIN CPU [DIGITAL SIGNAL PWB : IC7601] PIN FUNCTION
Pin
No.
Pin name I/O Function
Pin
No.

1-10 (No.YA099)
1 SYSTEM0 I PDP size select
[1.75V : 42V VGA 3.25V : 35V VGA]
2 SYSTEM3 I PDP maker select
[0V : SAMSUNG 3.25V : NEC]
3 AVCC I 5.0V
4 X2 - Not used
5X1 -GND
6 VCL - GND
7 RES I Reset [Reset : L]
8 TEST I GND
9 VSS - GND
10 OSC2 O 16MHz for system clock
11 OSC1 I 16MHz for system clock
12 VCC I 5.0V
13 PW_LOB O Power control [ON : L]
14 PANEL_PW_ON O Panel power control [ON : L]
15 TALK_RST O Not used
16 CODEC_RST O Not used
17 I2C_STOP O I2C bus stop control [Stop : L]
18 NC O Not used
19 NC O Not used
20 NC O Not used
21 NC O Not used
22 NC O Not used
23 SDA1 I/O I2C bus data (for panel memory)
24 FAN O Not used
25 SCL1 O I2C bus clock (for panel memory)
26 SDA0 I/O I2C bus data (for BBE / surround /
audio control, temp. sensor)
27 SCL0 O I2C bus clock (for BBE / surround /
audio control, temp. sensor)
28 SDA2 I/O I
2
C bus data (for PDP communication)
29 SCL2 O I
2
C bus clock (for PDP communication)
30 NC O Not used
31 SDA3 I/O Not used
32 SCL3 O Not used
33 NC O Not used
34 NC O Not used
35 NMI I Port for writing on board control
[Writing : L]
36 A_MU O Audio muting [Muting : H]
37 (HD) I Not used
38 ON_TIMMER O Not used
39 REMO I Not used
40 POWERLED O Not used
41 P85 I Emulator connection / Port for
writing on board [Writing : H]
42 P86 I Emulator connection
43 P87 I Emulator connection
44 SCK3 O Port for writing on board
45 RXD I Port for writing on board
46 TXD O Port for writing on board
47 AC_DET I AC power frequency detection
[Detection : H]
48 NC O Not used
49 RXD2 I Data receive for main CPU
communication
50 TXD2 O Data transmision for main CPU
communication
51 NC O Not used
52 MECA_SW I Not used
53 VD I Vertical sync
54 REC_DET I Not used
2.3.4 PANEL CPU [INTERFACE PWB : IC807] PIN FUNCTION
Pin name I/O Function
Pin
No.
Pin name I/O Function
Pin
No.
55 I2C_READY I PDP I2C communication select
[Prohibition : L Permission : H]
56 FAN_LOCK I Not used
57 SYSTEM2 I Not used
58 SYSTEM 1 I Not used
59 THEM_DET I Temp. sensor detection [Detection : H]
60 (AMP_PRO2) - GND
61 AMP_PRO1 I Not used
62 EE_CDS I Not used
63 KEY_IN1 I Not used
64 KEY_IN2 I Not used

(No.YA099) 1-11
3.2 DISASSEMBLY PROCEDURE
CAUTION:
•When exchanging parts etc. with the front side (PDP side)
facing down, please place a protection sheet below before
starting, so as to prevent scratches on the front side.
•Pay extra attention in the following matter when turning the
power on with the REAR COVER removed.
(1) Prior to disassembly, unplug the power cord from the AC
outlet without fail. (Turn the power "off".)
(2) Make sure that the
RECEIVER PWB: IC3106 is completely
covered with black masking tape. (Fig.2)
(3) Make sure to remove the masking of
RECEIVER PWB:
IC3106 when attaching the REAR COVER.
(4) Do not turn the power on until the REAR COVER is
attached properly, after the masking is removed.
SECTION 3
DISASSEMBLY
3.2.1 REMOVING THE REAR COVER (Fig.3)
(1) Remove the power cord.
(2) Remove the 4 screws [A], and remove the STAND COVER.
(3) Remove the 2 screws [B] and the 6 screws [C].
(4) Remove the TABLE TOP STAND.
(5) Remove the 15 screws [D], the 4 screws [E], the 8 screws
[F], and remove the REAR COVER.
CAUTION:
•Prior to starting the work, be sure to read the following written
instructions on the CAUTION LABEL attached to the REAR
COVER.
3.2.2 REMOVING THE TERMINAL COVER AND CENTER COVER
(Fig.3)
•Remove the REAR COVER.
(1) Remove the 7 screws [G], and remove the CHASSIS
SHIELD COVER.
(2) Remove the 6 screws [H], and remove the CENTER
COVER.
(3) Remove the 6 screws [I], the 12 screws [J], the 1 screw
[K], the 1 nut [L], the 1 washer [M], and remove the
TERMINAL COVER.
RECEIVER PWB
SOLDER SIDE
Masking tape
IC3106
Fig. 2
3.1 SYSTEM SETTEING
When the DIGITAL SIGNAL PWB is replaced or the DIGITAL
INPUT is not normal, SYSTEM SETTING in the following
procedure.
(1) Press the [SLEEP TIMER] key, and set it to 0 minutes.
(2) Press the [DISPLAY] key and the [VIDEO STATUS] key
simultaneously, then the SERVICE MENU screen will be
displayed.
(3) In the SERVICE MENU, press the [2] key. Then, the SELF-
CHECK screen will be displayed.
(4) Turn off the power by pressing the [POWER] key on the
remote control unit.
SERVICE MENU SCREEN
SELF-CHECK SCREEN
LOB OK FAN OK
LOB OK FAN OK
SYNC M:OK S:OK HD:NG
SYNC M:OK S:OK HD:NG
TIM OK
TIM OK
MSM OK DIGI 0000
MSM OK DIGI 0000
MEM OK AVSW OK
MEM OK AVSW OK
YC OK AIO OK
YC OK AIO OK
TUN OK GCR NG 1
TUN OK GCR NG 1
IP OK RGB OK 8
IP OK RGB OK 8
DVI OK HDMI OK
DVI OK HDMI OK
SERVICE MENU
SERVICE MENU
1.ADJUST
1.ADJUST
2.SELF_CHK
2.SELF_CHK
3.I2C STOP
3.I2C STOP
Fig. 1

1-12 (No.YA099)
TOP
D
J
F
D
E
E
H
L
M
CHASSIS
SHIELD
COVER
I
I
I
K
STAND COVER
A
A
A
C
(x6)
A
B
B
(x4)
(x11)
(x8)
(x2)
(x2)
(x2)
(x2)
(x12)
G(x7)
(x2)
(x6)
TABLE TOP STAND
REAR COVER
TERMINAL
COVER
CENTER COVER
Fig. 3

(No.YA099) 1-13
3.2.3 REMOVING THE AUDIO PWB (Fig. 4)
•Remove the REAR COVER.
(1) Remove the 4 screws [N], and remove the AUDIO CHASSIS
COVER.
(2) Disconnect the connectors [CN600B], [CN600C],
[CN600Y], [CN60SL], [CN60SR] from the AUDIO PWB.
(3) Remove the 4 screws [O], and remove the AUDIO PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.4 REMOVING THE AV JACK PWB (Fig.4)
•Remove the REAR COVER.
•Remove the CENTER COVER.
•Remove the CHASSIS SHIELD COVER.
•Remove the TERMINAL COVER.
(1) Disconnect the connectors [CN0J01], [CN0J02] from the
AV JACK PWB.
(2) Remove the 4 screws [P], and remove the AV JACK PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.5 REMOVING THE INTERFACE PWB (Fig.4)
•Remove the REAR COVER.
•Remove the CENTER COVER.
•Remove the CHASSIS SHIELD COVER.
•Remove the TERMINAL COVER.
(1) Disconnect the connectors [CN00B], [CN00C], [CN00Q],
[CN00G], [CN00T], [CN00V], [CN00X], [CN0FC] from the
INTERFACE PWB.
(2) Remove the 2 screws [Q], and withdraw the INTERFACE
PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.6 REMOVING THE REGULATOR PWB (Fig.4)
•Remove the REAR COVER.
•Remove the CENTER COVER.
•Remove the CHASSIS SHIELD COVER.
•Remove the TERMINAL COVER.
•Remove the INTERFACE PWB.
(1) Disconnect the connectors [CN003], [CN008], [CN00D]
from the REGULATOR PWB.
(2) Remove the 4 screws [R], and remove the REGULATOR
PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.7 REMOVING THE LINE FILTER PWB (Fig.4)
•Remove the REAR COVER.
•Remove the CENTER COVER.
•Remove the CHASSIS SHIELD COVER.
•Remove the TERMINAL COVER.
•Remove the INTERFACE PWB.
(1) Remove the 1 screw [S] and the 1 screw [T], and remove
the AC INLET PANEL.
(2) Disconnect the connector [CN8001] from the MAIN POWER
PWB.
(3) Remove the 1 screw [U], the 1 screw [V] and the 2 screws
[W], and remove the LINE FILTER PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.8 REMOVING THE RECEIVER PWB (Fig.4)
•Remove the REAR COVER.
•Remove the CENTER COVER.
•Remove the CHASSIS SHIELD COVER.
•Remove the TERMINAL COVER.
(1) Disconnect the connectors [CN00A], [CN00T] from the
RECEIVER PWB.
(2) Withdraw the RECEIVER PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.9 REMOVING THE ANALOG SIGNAL PWB (Fig.4)
•Remove the REAR COVER.
•Remove the CENTER COVER.
•Remove the CHASSIS SHIELD COVER.
•Remove the TERMINAL COVER.
•Remove the RECEIVER PWB.
(1) Disconnect the connectors [CN001], [CN002], [CN00D],
[CN00F], [CN00G], [CN0J1], [CN0J2] from the ANALOG
SIGNAL PWB.
(2) Remove the 4 screws [X], and remove the ANALOG SIGNAL
PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.10 REMOVING THE DIGITAL SIGNAL PWB (Fig.4)
•Remove the REAR COVER.
•Remove the CENTER COVER.
•Remove the CHASSIS SHIELD COVER.
•Remove the TERMINAL COVER.
(1) Disconnect the connectors [CN001], [CN002], [CN003],
[CN0FC], [CN0LV2] from the DIGITAL SIGNAL PWB.
(2) Remove the 5 screws [Y], and remove the DIGITAL SIGNAL
PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
CAUTION:
•Make sure to perform the "SYSTEM SETTING" on page
1-11, when DIGITAL SIGNAL PWB is replaced.
3.2.11 REMOVING THE MAIN BASE, CHASSIS BASE AND AUDIO
PWB BASE (Fig.4)
•Remove the REAR COVER.
•Remove the CENTER COVER.
•Remove the CHASSIS SHIELD COVER.
•Remove the TERMINAL COVER.
•Remove the AUDIO PWB.
•Remove the AV JACK PWB.
•Remove the INTERFACE PWB.
•Remove the REGULATOR PWB.
•Remove the LINE FILTER PWB.
•Remove the RECEIVER PWB.
•Remove the ANALOG SIGNAL PWB.
•Remove the DIGITAL SIGNAL PWB.
(1) Remove the 1 screw [Z], and remove the DIGITAL
TERMINAL COVER.
(2) Remove the 1 screw [a].
(3) Lift the MAIN BASE upright and remove it.
(4) Remove the 2 screws [b], and remove the CHASSIS BASE.
(5) Remove the 1 screw [c], and remove the AUDIO PWB BASE.

1-14 (No.YA099)
a
TOP
MAIN BASE
DIGITAL
SIGNAL
PWB
ANALOG
SIGNAL PWB
RECEIVER PWB
CHASSIS BASE
AC INLET
PANEL
LINE FILTER
PWB
INTERFACE PWB
REGULATOR
PWB
AV JACK PWB
a
AUDIO CHASSIS
COVER
AUDIO PWB
AUDIO PWB BASE
d
e
d
bc
b
c
DIGITAL TEMINAL
COVER
T
S
P
V
U
b
b
a
c
Z
(x4)
Q(x2)
X(x4)
W
(x2)
R
(x4)
Y
(x5)
N(x4)
O(x4)
Fig. 4

(No.YA099) 1-15
3.2.12 REMOVING THE FRONT CONTROL PWB (Fig.5)
•Remove the REAR COVER.
•Remove the CENTER COVER.
(1) Remove the 4 screws [d] and the 2 screws [e].
(2) Disconnect the connectors [CN00F], [CN00T] from the
FRONT CONTROL PWB.
(3) Remove the FRONT CONTROL PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.13 REMOVING THE FRONT LED PWB (Fig.5)
•Remove the REAR COVER.
•Remove the CENTER COVER.
•Remove the FRONT CONTROL COVER.
(1) Remove the 2 screws [f], and withdraw the FRONT PWB
BASE.
(2) Disconnect the connector [CN00X] from the FRONT LED
PWB.
(3) Remove the 2 screws [g], and remove the FRONT LED
PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.14 REMOVING THE TEMP. SENSOR PWB (Fig.5)
•Remove the REAR COVER.
(1) Disconnect the connector [CN00V] from the TEMP.
SENSOR PWB.
(2) Remove the 1 screw [h], and remove the TEMP. SENSOR
PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.15 REMOVING THE MAIN POWER PWB (Fig.5)
•Remove the REAR COVER.
(1) Disconnect the connectors [CN8001], [CN8002],
[CN8003], [CN8006], [CN8008], [CN8009], [CN9001] from
the MAIN POWER PWB.
(2) Remove the 7 screws [i], and remove the MAIN POWER
PWB and the POWER PWB BRACKET.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.16 REMOVING THE SUB POWER PWB (Fig.5)
•Remove the REAR COVER.
(3) Disconnect the connectors [CN9001], [CN9005] [CN9010]
from the SUB POWER PWB.
(4) Remove the 4 screws [j], and remove the SUB POWER
PWB and the INSULATOR.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.17 REMOVING THE PDP UNIT (Fig.5)
•Remove the REAR COVER.
•Remove the CENTER COVER.
•Remove the CHASSIS SHIELD COVER.
•Remove the TERMINAL COVER.
•Remove the MAIN BASE, CHASSIS BASE and AUDIO PWB
BASE (with each PWB affixed on the MAIN BASE, CHASSIS
BASE and AUDIO PWB BASE).
•Remove the TEMP. SENSOR PWB.
•Remove the MAIN POWER PWB.
•Remove the SUB POWER PWB.
(1) Remove the 8 screws [k] and the 8 screws [m], and remove
the BACK FRAME.
(2) Lift the PDP UNIT upright and remove it with enough care
not to impose shock to the PDP UNIT.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
CAUTION:
•Two or more people are required to remove the PDP UNIT.
•The gas pouring port is covered with the protection material.
In operation, be careful not to damage the gas pouring port.
•Do not touch the front side (glass) of the PDP with your
fingers.

1-16 (No.YA099)
TOP
GAS insertion
hole
POWER PWB
BRACKET
MAIN POWER PWB
TEMP. SENSOR PWB
SUB POWER PWB
FRONT LED
PWB
BACK FRAME
FRONT PWB
BASE
FRONT
CONTROL PWB
PDP UNIT
INSULATOR
INSULATOR
g
e
(x2)
m(x4)
m(x4)
d(x4)
k(x4)
h
k(x4)
j(x4)
i(x7)
f(x2)
e
(x2)
Fig. 5

(No.YA099) 1-17
3.2.18.5 REMOVING THE Y-BUFFER-L PWB (Fig.6)
•Remove the PDP UNIT.
(1) Disconnect the connectors [CN5501], [CN5502],
[CN5503], [CN5504], [CN5505], [CN5506] from the Y-
BUFFER-L PWB.
(2) Remove the 5 screws [r], and remove the Y-BUFFER-L
PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.18.6 REMOVING THE E-BUFFER PWB (Fig.6)
•Remove the PDP UNIT.
(1) Disconnect the connectors [CN401], [CN806], [EC1], [EC2],
[EC3], [EC4], [EC5], [EC6], [EF1] from the E-BUFFER PWB.
(2) Remove the 6 screws [s], and remove the E-BUFFER PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.18.7 REMOVING THE F-BUFFER PWB (Fig.6)
•Remove the PDP UNIT.
(1) Disconnect the connectors [CN402], [FC1], [FC2], [FE1],
[FG1] from the F-BUFFER PWB.
(2) Remove the 3screws [t], and remove the F-BUFFER PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.18.8 REMOVING THE G-BUFFER PWB (Fig.6)
•Remove the PDP UNIT.
(1) Disconnect the connectors [CN403], [GC1], [GC2], [GC3],
[GC4], [GC5], [GC6], [GF1] from the G-BUFFER PWB.
(2) Remove the 6 screws [u], and remove the G-BUFFER
PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.18 REMOVING THE PWB IN PDP UNIT
3.2.18.1 REMOVING THE X-MAIN PWB (Fig.6)
•Remove the PDP UNIT.
(1) Disconnect the connectors [CN4001], [CN4002],
[CN4003], [CN4004], [CN4005] from the X-MAIN PWB.
(2) Remove the 8 screws [n], and remove the X-MAIN PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.18.2 REMOVING THE Y-MAIN PWB (Fig.6)
•Remove the PDP UNIT.
(1) Disconnect the connectors [CN5001], [CN5002],
[CN5003], [CN5004], [CN5005], [CN5006], [CN5007],
[CN5008] from the Y-MAIN PWB.
(2) Remove the 7 screws [o], and remove the Y-MAIN PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.18.3 REMOVING THE LOGIC-MAIN PWB (Fig.6)
•Remove the PDP UNIT.
(1) Disconnect the connectors [CN101], [CN201], [CN401],
[CN402], [CN403], [CN803] from the LOGIC-MAIN PWB.
(2) Remove the 7 screws [p], and remove the LOGIC-MAIN
PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
3.2.18.4 REMOVING THE Y-BUFFER-U PWB (Fig. 6)
•Remove the PDP UNIT.
(1) Disconnect the connectors [CN5401], [CN5402],
[CN5403], [CN5404], [CN5405], [CN5406] from the Y-
BUFFER-U PWB.
(2) Remove the 5 screws [q], and remove the Y-BUFFER-U
PWB.
NOTE:
•It is advisable to take note of the connecting location
(connector number) of the removed connectors.
o
(x7)
q
(x5)
r
(x5)
s(x6)
t(x3)
u(x6)
n
(x8)
p
(x7)
Y-BUFFER-U
PWB
Y-BUFFER-L
PWB
Y-MAIN PWB
E-BUFFER PWB
LOGIC-MAIN PWB
F-BUFFER PWB
G-BUFFER PWB
X-MAIN PWB
Fig. 6

1-18 (No.YA099)
•Remove the PDP UNIT.
(1) Remove the 8 screws [w].
(2) Lift the FRAME BRACKETS and FRONT FILTER upright
and remove it with enough care not to damage the FRONT
FILTER.
(3) Remove the FRONT PANEL.
(4) Remove the 16 screws [x], and remove the FILTER
BRACKET.
(5) Remove the FRONT FILTER.
3.2.21 REMOVING THE TOP FRAME, BOTTOM FRAME AND SIDE
FRAME (Fig.7)
•Remove the REAR COVER
•Remove the CENTER COVER.
•Remove the CHASSIS SHIELD COVER.
•Remove the TERMINAL COVER.
•Remove the MAIN BASE, CHASSIS BASE and AUDIO PWB
BASE (with each PWB affixed on the MAIN BASE, CHASSIS
BASE and AUDIO PWB BASE).
•Remove the PDP UNIT.
•Remove the FRONT FILTER.
(1) Remove the 4 bosses [y] and the 8 screws [z], and remove
the TOP FRAME, BOTTOM FRAMEand SIDE FRAME.
3.2.19 REMOVING THE SPEAKER (Fig.7)
•Remove the REAR COVER
•Remove the CENTER COVER.
•Remove the CHASSIS SHIELD COVER.
•Remove the TERMINAL COVER.
•Remove the MAIN BASE, CHASSIS BASE and AUDIO PWB
BASE (with each PWB affixed on the MAIN BASE, CHASSIS
BASE and AUDIO PWB BASE).
(1) Remove the 3 screws [v], and remove the SPEAKER.
(2) Follow the same steps when removing the other hand
SPEAKER.
CAUTION:
•Please do not disassembly the SPEAKER.
When the speaker is decomposed, the performance cannot
be kept.
3.2.20 REMOVING THE FRONT PANEL AND THE FRONT FILTER
(Fig.7)
•Remove the REAR COVER
•Remove the CENTER COVER.
•Remove the CHASSIS SHIELD COVER.
•Remove the TERMINAL COVER.
•Remove the MAIN BASE, CHASSIS BASE and AUDIO PWB
BASE (with each PWB affixed on the MAIN BASE, CHASSIS
BASE and AUDIO PWB BASE).
TOP
y
y
z
FILTER
BRACKET
TOP FRAME
BOTTOM
FRAME
FRONT FILTER
FRONT PANEL
SPEAKER
SIDE FRAME
SIDE FRAME
f
f
(x2)
z(x2)
z
(x2)
z
(x2)
w(x4)
w
y
(x4)
v(x3)
x (x5)
x (x5)
v(x3)
x (x3)
y
Fig. 7

(No.YA099) 1-19
Setting item Setting value
POWER OFF
CHANNEL CABLE-02
VOLUME 10
INPUT TV
Table 1
3.3 REPLACEMENT OF MEMORY IC
3.3.1 MEMORY IC
This unit uses the nonvolatile memory IC.
The memory IC memories data for video and deflection circuits. To replace the memory IC without the data written, malfunctions
might occurred while power is on, and the normal image might not appear. When replacing the memory IC, be sure to use the IC
written with the initial values of data.
3.3.2 PROCEDURE FOR REPLACING THE MEMORY IC
1. Power off
Switch the power off and unplug the power cord from the
wall outlet.
2. Replacing the memory IC
Replace the memory IC with new one. Be sure to use the
memory IC written with the initial data values.
3. Power on
Plug the power cord into the wall outlet and switch the
power on.
4. Receive channel setting
Refer to the OPERATING INSTRUCTIONS and set the
receive channels (channels preset).
5. User setting
Check the user setting values in Table 1 to Table 5. If
setting value is different, set the correct value.
For setting, refer to the OPERATING INSTRUCTIONS.
6. Setting of SERVICE MENU
Verify the setting for each setting item in the SERVICE
MENU.(See Table 6.) If readjustment is necessary,
perform adjustment referring to “ADJUSTMENTS
PROCEDURE”.
SERVICE MENU SCREEN
SERVICE MENU SCREEN
ADJUST SCREEN
ADJUST SCREEN
Fig.1
SERVICE MENU
S001 PREPATE 0
NTSC3 FULL STD L
1. ADJUST
2. SELF_CHECK
3. I2C STOP
3.3.3 FACTORY SETTING VALUE
3.3.3.1 SETTING OF SWITCHS ON FRONT SIDE OF MAIN BODY
Setting item Setting value
DISPLAY OFF
ASPECT PANORAMA
VIDEO STATUS DYNAMIC
MULTI PICTURE 1 SCREEN
A.H.S OFF
BBE ON
SMART SOUND [PD-42V485/S] OFF
AHB ON
CLOSED CAPTION OFF
Table 2
3.3.3.2 SETTING OF REMOTE CONTROL UNIT

1-20 (No.YA099)
Setting item Setting value
POSITION ADJUSTMENT CENTER
POWER INDICATOR HIGH
IMAGE SHIFT STD
LANGUAGE ENG.
COLSED CAPTION OFF
AUTO SHUT OFF OFF
XDS ID ON
V-CHIP OFF
AUTO DEMO OFF
3.3.3.3 SETTING OF MENU SCREEN
(1) PICTURE ADJUST
3.3.3.4 SERVICE MENU SETTING ITEMS
1. ADJUST
2. SELF CHECK
3. I2C STOP
S001 ~ S039
T001 ~ T010
P001 ~ P010
D001 ~ D187
Z001 ~ Z010
[Refer to “SECTION 5
TROUBLESHOOTING” (page 1-31)]
[Do not adjust]
Service menu Setting item
Table 6
(2) SOUND ADJUST
STANDARD DYNAMIC GAME THEATER
NTSC HD NTSC HD NTSC HD NTSC HD
PICTURE 00 00 +05 +05 -05 -05 00 00
BRIGHT 00 00 00 00 00 00 00 00
COLOR 00 00 00 00 -03 -03 00 00
TINT 00 00 00 00 00 00 00 00
DETAIL 00 00 +05 +05 -03 -03 00 00
COLOR TEMPERATURE LOW LOW HIGH HIGH HIGH HIGH HIGH LOW
DIGI. NOISE CLEAR OFF OFF OFF OFF OFF OFF OFF OFF
NATURAL CINEMA ON ON ON ON ON ON ON ON
COLOR MANAGEMENT ON ON ON ON ON ON ON ON
DYNAMICGAMMA ON ON ON ON ON ON ON ON
Setting item Setting value
BASS Center
TREBLE Center
BALANCE Center
MTS STEREO
(3) INITIAL SET UP
Setting item Setting value
TV SPEAKER ON
AUDIO OUT FIX
DIGITAL-IN SIZE1
DIGITAL-IN AUDIO DIGITAL
CENTER CH INPUT OFF
NOISE MUTING ON
FRONT PANEL LOCK OFF
V1 SMART INPUT OFF
VIDEO INPUT LABEL Space
Table 3
Table 4
CAUTION
When a number key other than the [1] to [3] key is pressed in the SERVICE 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 SERVICE MENU.
Table 5
VIDEO STATUS
Setting item