JVC AV-48P575 Series User manual

SERVICE MANUAL
COPYRIGHT © 2004 VICTOR COMPANY OF JAPAN, LIMITED. No.YA091
2004/4
REAR PROJECTION TELEVISION
YA09120044
AV-48P575/H,
AV-56P575/H,
AV-56P585/H
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-60
BASIC CHASSIS
RP
[ AV-56P575 ]

1-2 (No.YA091)
SPECIFICATION
Design & specifications are subject to change without notice.
Items Contents
AV-48P575 AV-56P575 / AV-56P585
Dimensions (W ×H ×D) 120.0cm ×118.9cm ×62.2cm
(47-1/4" ×46-7/8" ×24-1/2")
136.8cm ×129.6cm ×66.7cm
(53-7/8" ×51-1/8" ×26-3/8")
Mass 72 kg ( 159 lbs ) 80 kg ( 176 lbs )
TV RF System CCIR (M)
Color System NTSC
Sound System BTSC system (Multi Channel Sound)
Teletext System Closed caption (T1-T4 / C1-C4)
Receiving Channels
and Frequency
VHF Low
VHF High
UHF
02ch~06ch : 54MHz~88MHz
07ch~13ch : 174MHz~216MHz
14ch~69ch : 470MHz~806MHz
CATV Receiving Channels
and Frequency
CATV 54MHz~804MHz
Low Band : 02~06
High Band : 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+58, W+59~W+84 by 65~94, 100~125
Sub Mid Band : A-8, A-4~A-1 by 01, 96~99
TV / CATV Total Channel 180 Channels
Intermediate Frequency Video IF
Sound IF
45.75MHz
41.25MHz (4.5MHz)
Color Sub Carrier 3.58MHz
Power Input AC 120V, 60Hz
Power Consumption 248W (Max)
Screen Transparent screen (unitized fresnel lens / double lenticular lens)
Screen Size 48" (122cm) Measured diagonally
16:9 ratio (W:106.3 cm, H:59.8 cm)
56" (142cm) Measured diagonally,
16:9 ratio (W:124 cm, H:69.8 cm)
Projection Tube 17cm (6.7") tube ×3 ( R/G/B )
High Voltage 31kV+1.0kV/-1.3kV (at zero beam current)
Speaker 13cm round type ×2
Audio Power Output 10W+10W
Antenna Terminal 75Ωunbalanced, F-type connector ×1
External Input (1/2/3/4) Component Video
[INPUT-1/2]
720p/1080i
480i/480p
S-Video
[INPUT-1/3/4]
Video
Audio
RCA pin jack ×6
Y : 1V (p-p) (Sync signal: ±0.35V, 3-value sync.), 75Ω
Pb/Pr : ±0.35V, 75Ω
Y : 1V (p-p) Positive (Negative sync provided), 75Ω
Pb/Pr : 0.7V, 75Ω
Mini-DIN 4pin ×3
Y: 1V (p-p) positive (Negative sync provided), 75Ω
C: 0.286V(p-p) (burst signal)
1V (p-p) positive (Negative sync provided), 75Ω(RCA pin jack ×4)
500mV(rms) (-4dBs), high impedance (RCA pin jack ×9)
Digital Input Video
Audio
HDMI connector
(Digital-input terminal is not compatible with computer signal)
Digital : HDMI connector
Analog : 500mV(rms) (-4dBs), high impedance (RCA pin jack ×2)
Audio Output (FIX) 500mV(rms) (-4dBs), low impedance (1kHz when modulated 100%)
(RCA pin jack ×2)
AV Compulink lll 3.5mm mini jack ×1
Remote Control Unit RM-C1257G (AA/R6/UM-3 battery ×2)

(No.YA091)1-3
SECTION 1
PRECAUTION
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) Use isolation transformer when hot chassis.
The chassis and any sub-chassis contained in some products are
connected to one side of the AC power line. An isolation
transformer of adequate capacity should be inserted between the
product and the AC power supply point while performing any
service on some products when the HOT chassis is exposed.
(5) Don't short between the LIVE side ground and ISOLATED (NEU-
TRAL) side ground or EARTH side ground when repairing.
Some model's power circuit is partly different in the GND. The differ-
ence of the GND is shown by the LIVE : ( ) side GND, the ISOLAT-
ED (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.
(6) If any repair has been made to the chassis, it is recommended that
the B1 setting should be checked or adjusted (See B1 POWER
SUPPLY check).
(7) The high voltage applied to the picture tube must conform with that
specified in Service manual. Excessive high voltage can cause an
increase in X-Ray emission, 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 minimum level of soft X-Ray emission,
components in the high voltage circuitry including the picture tube
must be the exact replacements or alternatives approved by the
manufacturer of the complete product.
(8) 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 10kΩ2W resistor to the anode button.
(9) 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.
(10) 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 1100V AC
(r.m.s.) for a period of one second.
(. . . . Withstand a voltage of 1100V AC (r.m.s.) to an appliance rat-
ed 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 1000Ωper 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.).
(11) High voltage hold down circuit check.
After repair of the high voltage hold down circuit, this circuit shall
be checked to operate correctly.See item "How to check the high
voltage hold down circuit".
AC VOLTMETER
(HAVING 1000 /V,
OR MORE SENSITIVITY)
PLACE THIS PROBE
ON EACH EXPOSED
METAL PA RT
1500 10W
0.15 F AC-TYPE
GOOD EARTH GROUND
PWB
White line side
WHT
PW
POWER CORD
REPLACEMENT WARNING.
Connecting the white line side of power
cord to "WHT" character side.
A V
This mark shows a fast
operating fuse, the
letters indicated below
show the rating.

1-4 (No.YA091)
1.2 INSTALLATION
1.2.1 INSTALLATION SITE
(1) The rear of this set is provided with ventilation openings.
Install the set more than 5 cm from a wall and in a location
with good ventilation.
(2) Avoid the following types of locations.
a) Unstable locations (location must be able to
withstand heavy weight).
b) Locations subjected to direct sunlight.
c) Near stoves or other heating devices.
d) Locations subjected to humidity or oily smoke.
e) Dusty locations.
f) Locations with strong vibration.
1.2.2 INSTALLATION ADJUSTMENT
When installing, moving or changing the orientation of the set,
perform static convergence adjustment according to the
following procedure.
Adjusting CRT color convergence have two method, AUTO,
MANUAL and RESET. It adjust on the MENU screen.
NOTE :
Please have you TV on for at least 20 minutes before sing this
feature.
This adjustment will be needed only when the colors of the
characters/lines are separated and lack in distinction. If not,
please don't perform the adjustment.
AUTO
(1) Press the [MENU] key, and select the "CONVERGENCE"
in the INITIAL SETUP menu with [function up/down] key.
(2) Press the [function left/right] key, then CONVERGENCE
menu appear.
(3) Press the [function up/down] key, and select the "AUTO".
(4) Press the [function left/right] key.
(5) The convergence adjustment will start. It will take about
25 seconds.
MANUAL
(1) Press the [MENU] key, and select the "CONVERGENCE"
in the INITIAL SETUP menu with [function up/down] key.
(2) Press the [function left/right] key, the CONVERGENCE
menu appears.
(3) Press the [function up/down] key, and select the
"MANUAL".
(4) Press the [function left/right] key, then CONVERGENCE
adjustment screen appear. [Fig.1]
• If all the crosses are white, no convergence adjustment
is needed.
(5) Select the location you want to adjust by using the [number
(2/4/5/6/8)] keys on the remote control unit. [Fig.2]
(6) Press the [SELECT] key to change the color of the box
to the color of the cross you want to adjust (red or blue).
• You cannot adjust the green cross.
(7) Use the [function up/down] key and the [function left/
right] keys to adjust the position of the cross.
(8) Adjust the three colors crosses until they overlap and
appear as a single white cross.
(9) Press the [OK] key.
NOTE :
• When you adjust the convergence, make sure you
start with the center position (position 5), and work
your way around radial for best results.
• When you make the adjustment in the center
(positions 5), you are making the adjustment for the
whale screen. In other positions, you are making the
adjustment only in that area.
• You can reset the adjustment if you do not like the
results, See below.
• If you perform AUTO CONVERGENCE after
performing MANUAL CONVERGENCE, your manual
convergence you performed will be cancelled.
(10) Press the [menu] key to end the convergence adjustment
procedure.
RESET
RESET in the CONVERGENCE menu resets all convergence
adjustments to the factory default setting.
Fig.1
Fig.2
(more than 5cm)
Wall
VENTILATION OPENING
2
5
8
64

(No.YA091)1-5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 FEATURES
• Rear Projection HDTV.
• New chassis design enable use of an interactive on screen
control.
• 3-2 PULL DOWN : You can enjoy DVD movies at the highest
picture quality.
• MOTION COMPENSATION : With this function, the seamless
reproduction of dynamic motion on the screen has been real-
ized.
• Bullet-in DSD (Digital Super Detail) circuit and 3 dimension Y/
C separate circuit.
• Receive DTV broadcast (1080i / 720p / 480p / 480i)
• Built-in HDMI / Component (Y / Pb / Pr) input.
• Built-in A.H.S., BBE circuit.
• Smart Sound and Smart Caption are available (AV-56P585
only).
2.2 DIFFERENCE LIST
2.3 FUNCTIONS
Item AV-48P575 AV-56P575 AV-56P585
Smart Sound --- --- available
Smart Caption --- --- available
DIGITAL IN
INPUT-1INPUT-2
COMPONENT VIDEO
Y
Pb
Pr
S-VIDEO
OVER
INPUT-1
INPUT-2
OVER
INPUT-3
RL
AUDIO VIDEO
CENTER
CHANNEL
INPUT
75 (VHF/UHF)
AV COMPULINK
AUDIO OUT
R
L
MENU
POWER
CHANNEL VOLUME SUPER
FOCUS
OPERATE
-+-+
INPUT-4
S-VIDEO VIDEO AUDIO
RL/MONO
OVER
R
L
AUDIO
(ANALOG)
VIDEO
(DIGITAL)
AUDIO
(DIGITAL)
UNPLUG THE POWER CORD FROM AC OUTLET
BEFORE REMOVING THE REAR COVER
When the rear cover is removed, follow "CAUTION AT DISASSEMBLY"
procedure in the service manual before plugging the TV's power
cord into an AC outlet. Failure to follow the procedure will result
in PERMANENT damage to some of the television features.
DÉBRANCHEZ LE CORDON DE LA PRISE DE COURANT
C.A. AVANT DE RETIRER LE COUVERCLE ARRIÈRE.
Une fois le couvercle arrière déposé suivez l procédure
« ATTENTION LORS DU DÉMONTAGE » décrite dans une
prise c.a. L'omission de suivre la procédure causera des
dommages PERMANENTS à certaines fonctions du téléviseur.
Licensed from BBE Sound, Inc. under USP4638258, 4482866
and 5510752.
BBE is a registered trademark of BBE Sound, Inc.
Sous licence de BBE Sound, Inc.
BBE est une marque de fabrique déposée de BBE Sound, Inc.
Autorizado con licencia de BBE Sound, Inc.
BBE es une marca comercial registrada de BBE Sound, Inc.
FRONT CONTROL KEY & TERMINAL MENU ( OPERATE
 ) button
1
CHANNEL -/+ ( OPERATE / ) buttons
2
VOLUME -/+ buttons
3
SUPER FOCUS button
4
POWER LED (blue)
7
POWER button
5
INPUT-4 terminal
( S-VIDEO / VIDEO / AUDIO )
6
6 1
1 2
42
5
3
673 491011 5
8
AUDIO OUT terminal
8
AV COMPULINK
9
AUDIO INPUT (For DIGITAL IN) terminal
2
CENTER CHANNEL INPUT terminal
10
DIGITAL IN terminal
( HDMI connector : VIDEO / AUDIO )
1
INPUT-1 terminal
( S-VIDEO / VIDEO / AUDIO )
3
INPUT-2 terminal
( VIDEO / AUDIO )
4
INPUT-3 terminal
( S-VIDEO / VIDEO / AUDIO )
5
INPUT-1 COMPONENT VIDEO terminal
( Y / Pb / Pr )
6
INPUT-2 COMPONENT VIDEO terminal
( Y / Pb / Pr )
7
Antenna Terminal (VHF/UHF)
11
7
REAR TERMINAL

1-6 (No.YA091)
ASPECT LIGHT
INPUT
SELECT
FREEZE
SWAP
C.C.INDEXTWIN
TUNE
MULTI SCREEN
SOUND
OK
RM-C1257G
BACK
1
3
5
7
6
9
8
13
10
18
4
16
2
17
19
15
14
20
21
23
22
REMOTE CONTROL UNIT [RM-C1257G]
POWER key
1
ASPECT key
2VCR / DVD switch
3TV / CATV switch
4
INPUT key
5
THEATER PRO key
6SLEEP TIMER key
7
DISPLAY key
8
MUTING key (memory key)
9
10
MENU key
11
MULTI SCREEN operation keys
12
Number (1~0) keys
13
TUNE key
14
RETURN+ key
15
VIDEO STATUS key
16
17
LIGHT key
18
SOUND key
19
C.C.(Closed Caption) key
20 OK key
21
BACK key
22
VCR / DVD operation keys
23
11
CH+/- (/) keys
VOL+/- (/) keys
12

(No.YA091)1-7
2.4 TECHNICAL INFORMATION
2.4.1 MAIN MICRO COMPUTER (CPU) FUNCTION (MN102H75K)
Pin No. Pin name I/O Function
1 NC O --------
2 /MICON_V I V.sync for OSD
3LB_PRO I
Low B protection detection
[Protection:H]
4 NC - --------
5 /RST I Main CPU reset [Reset:L]
6 NC O --------
7 /TEST I +3.3V
8 OSD_YS O OSD Ys (blanking)
9SDA4 I/OI
2C bus (data) for JCC5055
10 NC O --------
11 A_MU O Audio muting [Muting:H]
12 /MICON_H I H sync for OSD
13 NC O --------
14 P46,OSDXI I Oscillation for OSD
15 P45,OSDXO O Oscillation for OSD
16 SDA2 I/O I2C bus (data) for MTS
17 AC-IN I AC for timer count
18 SCL2 O I2C bus (clock) for MTS
19 NC O --------
20 VCOI I LPF
21 PDO O LPF
22 /IP_RESET O Reset for DIST [Reset:L]
23 OSD_YM O OSD Ym (transparence)
24 OSD_B O OSD blue
25 POWER_LED O Lighting for POWER LED
[HIGH / ON:H]
26 OSD_G O OSD green
27 OSD_R O OSD red
28 VREF I Reference voltage for OSD
29 IP_ERR I DIST program load detect.
30 IREF I Reference current for OSD
31 COMP I Phase adjust for OSD
32 AVDD I +3.3V
33 CLL I Clamp low level
34 VREFLS I Reference voltage for SUB CCD
35 SUB_CCD I Video for sub closed caption
decoder
36 NC - --------
37 VSS I GND
38 MAIN_CCD I Video for main closed caption
decorder
39 VREFHS I Reference voltage for MAIN CCD
40 CLH I Clamp high level
41 VDD/VPP I +3.3V
42 SCL4 O I2C bus (data) for JCC5055
43 NC O --------
44 ON_TIM O Lighting for on timer operating
[LOW / ON:H]
45 SBO 0 O Convergence control [RXD]
46 SBD 0 I Convergence control [TXD]
47 SBT1 I --------
48 AP_DATA - --------
49 BS_RST - --------
50 SQR - --------
51 BS1.5CTL - --------
52 NC O --------
53 NC O --------
54 DC_COTL O Black level DC reproduce control
55 NC O --------
56 NC O --------
57 NC O --------
58 /LOB_POW O LowB power control [Power on:L]
59 COMPULINK I AV COMPULINK III control
60 /POWERGOOD I Power condition check
61 /MECA_ON I Machine SW interrupt [Pushing:L]
62 /MAIN_POW O Main power control [Power on :L]
63 NC - --------
64 /B1 POW O B1 power control [Power on:L]
65 AFC I AFT voltage
66 X_RAY I X-ray protection detection
[Protection : 2.0V]
67 SPRIT O NC
68 KEY2 I Front key scan 2 (CH+, VOL-/+)
69 KEY1 I Front key scan 1 (MENU, CH-)
70 SCL1 O I2C bus (clock) for EEP-ROM
71 SDA1 I/O I2C bus (data) for EEP-ROM
72 REMO I Remote control
73 NC O --------
74 VSS I GND
75 OSC2 O 4MHz oscillation for system clock
76 OSC1 I 4MHz oscillation for system clock
77 VDD I +3.3V
78 SCL0 O I2C bus (clock) for general
79 AP_CLK O --------
80 SDA0 I/O I2C bus (data) for general
81 NC O --------
82 NC O --------
83 NC - --------
84 P_MU O Picture muting [Muting:H]
Pin No. Pin name I/O Function

1-8 (No.YA091)
2.5 MAIN PARTS LOCATION
2.5.1 PWB ASS'Y ARRANGEMENT
The PWB ASS'Y is indicated below.
PWB ASS'Y name AV-48P575HA AV-56P575HA AV-56P585HA
MAIN PWB ASS'Y SRP-1003A-M2 SRP-1004A-M2 SRP-1002A-M2
MI-COM & DIST MODULE PWB ASS'Y SRP0D001A-M2 ←←
POWER PWB ASS'Y SRP-9001A-M2 ←←
DEF / CONVERGENCE OUT PWB ASS'Y SRP-2002A-M2 ←←
DIGITAL CONVERGENCE MODULE PWB ASS'Y SRP0K003A-M2 SRP0K002A-M2 ←
DIGITAL INPUT MODULE PWB ASS'Y SRP-7803A-M2 SRP-7804A-M2 SRP-7802A-M2
FRONT CONTROL PWB ASS'Y SRP0L001A-M2 ←←
REMOCON SENSOR PWB ASS'Y SRP-8001A-M2 ←←
VM PWB ASS'Y SRP-7201A-M2 ←←
R CRT SOCKET PWB ASS'Y SRP-3101A-M2 ←←
G CRT SOCKET PWB ASS'Y SRP-3201A-M2 ←←
B CRT SOCKET PWB ASS'Y SRP-3301A-M2 ←←
PROJECTION UNIT
FRONT CONTROL ASS'Y
AV TERMINAL BOARD
G CRT SOCKET
PWB
R CRT SOCKET
PWB
B CRT SOCKET
PWB
VM PWB
FRONT CONTROL
PWB
REMOCON SENSOR
PWB
DIGITAL CONVERGENCE
MODULE PWB
POWER PWB
DEF / CONVERGENCE OUT
PWB
DIGITAL INPUT
MODULE PWB
(This figure is only MAIN UNIT)
MI-COM & DIST
MODULE PWB
MAIN PWB

(No.YA091)1-9
2.6 SCREEN HANDLING CAUTIONS
2.6.1 SCREEN STORAGE
Store the SCREEN ASS'Y in a standing position in order to avoid deformation. If the screen is stored horizontally, there is risk of
deforming the screen face.
When necessary to place the SCREEN ASS'Y horizontally, position the screen side upwards and sure to place spacers between the
screen and resting site (floor or stand etc.) to prevent the screen from sagging.
2.6.2 SCREEN SURFACE
Since the screen surface is easily scratched or soiled, use ample care when handling.
2.7 PROJECTION UNIT REPLACEMENT
2.7.1 ADJUSTMENT DURING REPLACEMENT
When replacing the three R, G and B projection units, first replace the R and B units and perform focus / screen / raster centering
adjustments with reference to the G unit. Then replace the G unit and perform G focus / screen / convergence adjustment. Finally
perform R & B . Convergence adjustments. Use care to simultaneously removes all three-projection units.
2.7.2 DISASSEMBLY CAUTION
The projection units include locations that are not to be disassembled during service. When replacing projection unit parts,
disassemble to the state indicated in the figure below.
The figure indicates screws and wires that are not to be removed. Use care not to remove these.
Leave the screen with protector, fresnel lens
and double lenticular lens attached. If cannot
be disassembled further.
SCREEN
FRONT PANEL
DISASSEMBLY PROCEDURE
If the screen or screen panel need to
be replaced, remove the 14 (48 inch) /
20(56 inch) screws A.
A
SENSOR
SENSOR
SENSOR
SENSOR
SCREEN BRACKET
(BOTTOM)
SCREEN BRACKET
(RIGHT)
SCREEN BRACKET
(LEFT)
SCREEN BRACKET
(TOP)
(x 14) [48 inch]
(x 20) [56 inch]
56 inch only
56 inch only
LENS ASS'Y SCREW ( x 4)
LENS ASS'Y
CRT ASS'Y (COUPLER ASS'Y)
DEF. / CONVER. YOKE
VM PWB (G only)
TAPE
2/4 POLE
MAGNET
R CRT SOCKET PWB ASS'Y
G CRT SOCKET PWB ASS'Y
B CRT SOCKET PWB ASS'Y
Check that tape is applied to the CRT neck.
If absent, the deflection yoke can dislodge.
Deflection yoke wires : to connector on DEF / CONVERGENCE OUT PWB ASS'Y.
[R="RHV", G="GHV", B="BHV"]
Convergence yoke wires : to connector on DEF / CONVERGENCE OUT PWB ASS'Y.
[R="R", G="G", B="B"]
Do not remove screws
Do not disassembly
ANODE wires : to DIVIDER

1-10 (No.YA091)
SECTION 3
DISASSEMBLY
3.1 DISASSEMBLY PROCEDURE
• Make sure that the power cord is pulled out from the AC wall
socket.
3.1.1 SPEAKER GRILLE
(1) Remove 2 screws [ A ] from rear side.
(2) The SPEAKER GRILLE bottom is pulled to the front, and
four claws which are fixing the SPEAKER GRILLE are
removed.
(3) Take out the SPEAKER GRILLE.
*Remove the both side SPEAKER GRILLE same manner.
3.1.2 SPEAKER
• Take out the SPEAKER GRILLE.
(1) Remove 4 screws [ B ].
(2) Take out the SPEAKER.
(3) Disconnect the speaker wire from speaker terminal.
*Remove the both side SPEAKER same manner.
3.1.3 FRONT PANEL
• Take out the SPEAKER GRILLE.
(1) Remove 4 screws [ C ].
(2) The FRONT PANEL upper is pulled to the front, and two
claws which are fixing the FRONT PANEL are removed.
(3) Take out the FRONT PANEL.
3.1.4 FRONT CONTROL BOX
• Take out the SPEAKER GRILLE.
• Take out the FRONT PANEL.
(1) Remove 5 screws [ D ].
(2) Disconnect the connector [CN001H], [CN001G], [CN00R]
on the FRONT CONTROL PWB.
(3) Take out the FRONT CONTROL BOX.
3.1.5 FRONT CONTROL PWB
• Take out the FRONT CONTROL BOX.
(1) Remove 2 screws [ E ].
(2) Remove 3 screws [ F ] from rear side of FRONT CONTROL
BOX.
(3) Take out the FRONT CONTROL PWB.
Fig.1
Fig.2
SPEAKER
FRONT
CONTROL BOX
A
B
C
D
A
CLAW CLAW
CLAW
SPEAKER
GRILL
SPEAKER
WIRE
FRONT PANEL
FRONT SIDE
REAR SIDE
E
CN00R
FRONT
CONTROL PWB
D
F
CN001G
CN001H
CAUTION AT DISASSEMBLY
1
3
5
2
4
6
DIGITAL INPUT MODULE
POWER CORD
SB
connector
AV TERMINAL
BOARD
Prior to disassembly, unplug the power code from the AC
outlet without fail. (Turn the power "off".)
Short the SB connector 1pin and 2pin of the
DIGITAL INPUT MODULE. (At the time of assembling)
Before the rear panel is inserted into the cabinet, release
the short-circuit between the SB connector 1pin and
2 pin of the DIGITAL INPUT MODULE.
After releasing the short-circuit between the SB
connectors, do not turn the power on until the rear panel
is inserted into the cabinet.
Negligence in carrying out the above steps may cause
the inactivation of the TV.

(No.YA091)1-11
3.1.6 SCREEN ASS'Y
• Take out the SPEAKER GRILLE.
• Take out the FRONT CONTROL BOX.
(1) Disconnect the connector [ CN00Z ]
(2) Remove 4 screws [ G ] attaching the SCREEN ASS’Y.
(3) Remove 10 screws [ H ] from rear side.
(4) Take out the SCREEN ASS'Y.
NOTE :
• Please place the SCREEN ASS'Y on a flat table without fail.
• Because of the large size, at least two parsons are
recommended for removal and reassemble.
• Use core not to scratch the screen during work.
• During assembly, be sure to engage the left and right tabs
with the cabinet mounting positions.
• When than sporting the SCREEN ASS'Y, avoid grasping the
top of the screen panel, instead grasp the left and right
areas.
Fig.3
3.1.7 CONVERGENCE SENSOR
• Take out the SPEAKER GRILLE.
• Take out the FRONT CONTROL BOX.
• Take out the SCREEN ASS’Y.
(1) Remove the 1 screw [ I ] attaching the SENSOR HOLDER.
(2) Remove the claw of the SENSOR HOLDER to take out the
CONVERGENCE SENSOR.
(3) Take out the others CONVERGENCE SENSOR same
manner.
Fig.4
3.1.8 MIRROR
• Take out the SPEAKER GRILLE.
• Take out the FRONT CONTROL BOX.
• Take out the SCREEN ASS'Y.
(1) Remove 9 screws [ J ] attaching the mirror brackets of the
upper, left and right side.
(2) Raise slightly to disengage of the mirror from the bottom
bracket. (If necessary, loosen the screws attaching the
bottom bracket)
(3) Take out the MIRROR.
NOTE :
• The MIRROR is frontcoated. Do not touch the front of
the MIRROR.
• At least 2 persons are recommended for removable
and reassemble.
Fig.5
H
SCREEN ASS'Y
G
CN00Z
SCREEN ASS'Y
CONVERGENCE
SENSOR
SENSOR
HOLDER1
SENSOR
HOLDER2
SENSOR
HOLDER1
CLAW
I
CONVERGENCE
SENSOR
MIRROR
BRACKET
MIRROR BRACKET
J

1-12 (No.YA091)
3.1.9 REAR PANEL
(1) Remove 6 screws [ K ].
(2) Remove 4 screws [ L ].
(3) Take out the REAR PANEL.
NOTE :
• Before the rear panel is inserted into the cabinet, release the
short-circuit between the [SB] connector (1) pin and (2) pin
of the DIGITAL INPUT UNIT. (Refer to "CAUTION AT
DISASSEMBLY" on Page 10).
• After releasing the short-circuit between the [SB]
connectors, do not turn the power on until the rear panel is
inserted into the cabinet.
• Prior to starting the work, be sure to read the following
written instructions on the CAUTION LABEL attached to the
REAR PANEL.
Fig.6
3.1.10 PARTITION
• Take out the REAR PANEL.
(1) Pull out the PARTITION backward.
3.1.11 REAR COVER
• Take out the SPEAKER GRILLE.
• Take out the FRONT CONTROL BOX.
• Take out the SCREEN ASS'Y.
(1) Remove 2 screws [ M ].
(2) Remove 2 screws [ N ] from front side.
(3) Slightly pull for backside to disengage of the REAR COVER
from hooks.
(4) Take out the REAR COVER.
NOTE :
• Because of the large size, at least two persons are
recommended for removal and reassemble.
Fig.7
Prior to starting the work, be sure to read the following
written instructions on the CAUTION LABEL attached to
the REAR PANEL.
UNPLUG THE POWER CORD FROM AC OUTLET BEFORE
OPEN THE REAR COVER (PANEL).
When the rear cover (panel) is removed, follow "CAUTION AT
DISASSEMBLY" procedure in the service manual before
plugging the TV's power cord into an AC outlet.
Failure to follow the procedure will result in PERMANENT
damage to some of the television features.
REAR PANEL
PARTITION
L
K
REAR COVER
M
N
N
BRACKET
HOOK

(No.YA091)1-13
3.1.12 MAIN UNIT
• Take out the SPEAKER GRILLE.
• Take out the FRONT PANEL.
• Take out the REAR PANEL.
(1) Remove 4 screws [ O ] from front side.
(2) Take out the connector [CN00R], [CN001G], [CN001H] on
the FRONT CONTROL PWB.
(3) Take out the connector [CN00Z] on the DEF &
CONVERGENCE OUT PWB.
(4) Remove 2 screws [ P ] attaching the MAIN CHASSIS and
BODY.
(5) Pull out the MAIN UNIT rear side.
NOTE :
• Except for confirmation of projection of images on the
screen and audio output through the speakers, the
removed MAIN UNIT is still workable in the same state
as if it is still built in the TV set. Therefore, the MAIN
UNIT can be removed, if necessary, for board
diagnosis, electric testing, etc. apart from confirmation
of screen images and audio output.
• When wire clamps are removed during work, use care
to restore them precisely to their original positions.
Performance can be affected if these are not returned
to the original positions.
• Because of the large size, at least two persons are
recommended for removal and reassemble.
• When carrying the MAIN UNIT, use care not to drop,
shock or shake it.
• Do not stain or damage the lens of the PROJECTION
UNIT.
• Do not look the projection side of a PROJECTION
UNIT when the image is projected.
Fig.8
3.1.12.1 CHECKING THE P.W. BOARD
When checking the MAIN PWB, POWER PWB, DEF &
CONVERGENCE OUT PWB, etc., raise the MAIN UNIT with the
front side down for the make of convenience.
3.1.13 FOCUS PACK
• Take out the MAIN UNIT.
(1) Remove 1 screw [ Q ].
(2) Take out the FOCUS PACK.
(3) Take out 9 wires connecting the FOCUS PACK.
3.1.14 AV TERMINAL BOARD
• Take out the REAR PANEL.
(1) Remove 4 screws [ R ].
(2) Pull out the POWER CORD CLAMP from AV TERMINAL
BOARD right side.
(3) Disconnect the connector [AU], [DC], [Q] and [SR] on the
DIGITAL INPUT MODULE PWB.
(4) Take out the AV TERMINAL BOARD.
3.1.15 DIGITAL INPUT MODULE
• Take out the AV TERMINAL BOARD.
(1) Remove 1 screw [ S ].
(2) Remove 2 screws [ T ] from rear side of the AV TERMINAL
BOARD.
(3) Take out the DIGITAL INPUT MODULE.
NOTE:
When removing the DIGITAL INPUT MODULE, refer to
the "CAUTION AT DISASSEMBLY" section on page 10.
Fig.9
O
Q
P
BODY
MAIN UNIT
FOCUS PACK
SPEAKER
WIRE
CN00Z
CLAMP
SPEAKER
CONNECTOR
SPEAKER
WIRE
R
S
T
AV TERMINAL
BOARD
DIGITAL INPUT
MODULE
POWER CORD

1-14 (No.YA091)
3.1.16 MAIN CHASSIS
• Take out the REAR PANEL.
(1) Remove 2 screws [ U ].
(2) Remove 2 screws [ P ].
(3) Pull out the MAIN CHASSIS for backside.
NOTE:
If necessary, remove the anode wires, connectors,
respectively.
3.1.17 MI-COM & DIST MODULE PWB
• Take out the REAR PANEL.
• Take out the MAIN CHASSIS.
(1) Disconnect the connector [ CN000E ], [ CN000Y ] on the
MI-COM & DIST MODULE PWB.
(2) Remove 2 screws [ V ].
(3) Take out the MI-COM & DIST MODULE PWB.
3.1.18 DIGITAL CONVERGENCE MODULE PWB
• Take out the REAR PANEL.
• Take out the MAIN CHASSIS.
(1) Remove 2 screws [ W ].
(2) Take out the DIGITAL CONVERGENCE MODULE PWB. Fig.10
3.1.19 PROJECTION UNIT
• Take out the SPEAKER GRILLE.
• Take out the FRONT CONTROL BOX.
• Take out the REAR PANEL.
• Take out the MAIN UNIT.
(1) Take out the CRT SOCKET PWB.
(2) Remove 4 screws [ X ].
(3) Pull out the PROJECTION UNIT upward.
NOTE :
• Refer to "PROJECTION UNIT REPLACEMENT" on page
9 when taking out and replacing the PROJECTION UNIT.
• When wire clamps are removed during work, use care
to restore them precisely to their original positions.
Performance can be affected if these are not returned
to the original positions.
3.1.20 HV DIVIDER
• Take out the REAR PANEL.
(1) Remove 1 screw [ Y ].
(2) Take out the HV DIVIDER.
*Wires of the transformer (FBT) and CRT of each
PROJECTION UNIT can be removed by turning the
connector portions.
NOTE :
• If necessary, remove the anode wires, and replacing
the HV DIVIDER, take care to correctly engage the
connector.
3.1.21 REMOCON SENSOR PWB
• Take out the REAR PANEL.
(1) Disconnect the connector [ R ].
(2) Remove 1 screw [ Z ].
(3) Take out the REMOCON SENSOR PWB.
Fig.11
V
W
U
U
P
MAIN
CHASSIS
MI-COM & DIST
MODULE PWB
DIGITAL CONVERGENCE
MODULE PWB
X
PROJECTION UNIT
HV
DIVIDER
Y
Z
REMOCON
SENSOR PWB
CONNECTOR
Pull
Turn

(No.YA091)1-15
3.2 MEMORY IC REPLACEMENT
3.2.1 MEMORY IC
This memory IC stores data for proper operation of the video and
deflection circuits.
When replacing, be sure to use an IC containing this (initial
value) data.
Fig.1
3.2.2 MEMORY IC REPLACEMENT PROCEDURE
(1) Power off
Switch off the power and disconnect the power cord from
the wall outlet.
(2) Replace the memory IC
Initial value must be entered into the new IC.
(3) Power on
Connect the power cord to the wall outlet and switch on the
power.
(4) SERVICE MENU setting
Before entering the SERVICE MENU, 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 of the REMOTE
CONTROL UNIT is at the "VCR" side. If the switches have not
been properly set, you cannot enter the SERVICE MENU.
a) Press [SLEEP TIMER] key and, while the indication
of SLEEP TIMER 0 MIN is being displayed, press
[DISPLAY] key and [VIDEO STATUS] key (Fig.2)
simultaneously.
b) The SERVICE MENU screen of Fig.1 is displayed.
c) Verify what to set in the SERVICE MENU, and set
whatever is necessary (Fig.1).
Refer to the SERVICE ADJUSTMENT for setting.
d) Press the [BACK] key twice to return normal screen.
(5) Receive channel setting
Refer to the OPERATING INSTRUCTIONS (USER'S GUIDE)
and set the receive channels (Channels Preset) as described.
(6) User settings
Check the user setting items according to after page.
Where these do not agree, refer to the OPERATING
INSTRUCTIONS (USER'S GUIDE) and set the items as
described.
Fig.2
3.2.3 SERVICE ADJUSTMENT ITEM
1.PICTURE/SOUND
2.YC SEP
3.WHITE BALANCE
4.MEMORY SETUP
5.RF AFC
6.CONVER A
7.CONVER B
8.IP
9.DSD
0.HDMI
SERVICE MENU
ASPECT LIGHT
INPUT
SELECT
FREEZE
SWAP
C.C.INDEXTWIN
TUNE
MULTI SCREEN
SOUND
OK
RM-C1257G
BACK
SERVICE MENU SELECT KEY
POWER
NUMBER
VCR/DVD
switch
TV/CATV
switch
FUNCTION
(UP)
FUNCTION
(RIGHT)
FUNCTION
(DOWN)
DISPLAY
FUNCTION
(LEFT)
MENU
MEMORY
(MUTING
VIDEO
STATUS
BACK
SLEEP
TIMER
Setting item Item No. Remark Setting item Item No. Remark
1.PICTURE/SOUND 6.CONVER A
AUDIO A01~A27 Convergence adjustment CPA01~CPA11
Do not adjust
VIDEO S01~S99 CCA01~CCA12
DEFLECTION D01~D32 CDA01~CDA07
FACTORY setting F01~F70 CBA01~CBA94
2.YC SEP 7.CONVER B
YC separation setting YCM001~YCM185
Do not adjust
Convergence adjustment ------
YCS001~YCS114 8.IP
DIST process setting IPA001~IPA042 Do not adjust
3.WHITE BALANCE 9.DSD
LOW LIGHT/HIGH LIGHT
adjustment
BR, DRV R, DRV B,
CUT R, CUT G, CUT B
DSD process setting DSA001~DSA053
Do not adjust
DSB001~DSB053
4.MEMORY SETUP ------ Do not adjust DSC001~DSC044
5.RF AFC DSD001~DSD017
TUNER RF AFT setting TUNER, AFC,FINE
Do not adjust
0.HDMI
Digital input setting HDM001~HDM080 Do not adjust
RHD001~RHD170

1-16 (No.YA091)
3.2.4 FACTORY SHIPPING SETTING
VIDEO STATUS MEMORY
(NTSC / 480i / 480p)
(720p / 1080i)
CHANNEL SETTING (CHANNEL SUMMARY)
Item Setting value
TINT COLOR PICTURE BRIGHT DETAIL
STANDARD 0 0 0 0 0
THEATER 00000
DYNAMIC 0 0 +10 0 +5
GAME 0 0 -10 0 0
Item Setting value
TINT COLOR PICTURE BRIGHT DETAIL
STANDARD 0 0 0 0 0
THEATER 00000
DYNAMIC 0 0 +5 0 +10
GAME 0 0 -10 0 0
Band CH display Setting Band CH display Setting
VHF LOW 2 USED SUPER N 27 NOT USED
3 NOT USED O 28 USED
4 USED P 29 NOT USED
5 USED Q 30 NOT USED
6 USED R 31 USED
VHF HIGH 7 USED S 32 USED
8 NOT USED T 33 NOT USED
9 USED U 34 NOT USED
10 NOT USED V 35 NOT USED
11 USED W 36 USED
12 NOT USED SUBMID A-7 93 NOT USED
13 USED A-6 94 NOT USED
UHF 14 USED A-5 95 NOT USED
36 USED A-4 96 USED
41 NOT USED A-3 97 USED
46 NOT USED A-2 98 USED
63 USED A-1 99 NOT USED
69 USED A-8 01 NOT USED
MID A 14 USED HYPER W+11 47 USED
B 15 USED W+12 48 USED
C 16 USED W+17 53 USED
D 17 USED W+23 59 USED
E 18 USED ULTRA W+29 65 NOT USED
F 19 NOT USED W+51 NOT USED
G 20 NOT USED W+78 NOT USED
H 21 USED W+84 NOT USED
I 22 NOT USED
SUPER J 23 NOT USED
K 24 USED
L 25 NOT USED
M 26 NOT USED

(No.YA091)1-17
SHIPPING FACTORY SETTING (USER SETTING)
Setting item Setting value Setting item Setting value
POWER
CHANNEL
VOLUME
INPUT
Off
CABLE-02
10
TV
TINT / COLOR / PICTURE/
BRIGHT / DETAIL
Refer to setting of Video status
memory at shipping factory
setting
COLOR TEMPERATURE
DIG. NOISE CLEAR
VSM (Velocity Scan Modulation)
LOW
OFF
ON
DISPLAY
ASPECT
VIDEO STATUS
OFF
REGULAR
DYNAMIC
NATURAL CINEMA
BASS / TREBLE / BALANCE
MTS
ON / OFF TIMER
LANGUAGE
NOISE MUTING
FRONT PANEL LOCK
CLOSED CAPTION
FRONT PANEL LOCK
V1 SMART INPUT
VIDEO INPUT LABEL
AUTO
Center
STEREO
OFF
ENG
ON
OFF
OFF ( CC1 / T1 )
OFF
OFF
BLANK
SOUND
A.H.S
BBE
SMART SOUND OFF
OFF
ON
OFF (AV-56P585 only)
SPLIT SOURCE LEFT SIDE : CA 02
RIGHT SIDE : INPUT1
AUTO SHUT OFF
DIGITAL-IN
DIGITAL AUDIO
CHANNEL SUMMARY
V-CHIP
AUTO DEMO
OFF
SIZE 1
DIGITAL
Refer to Last memory
(CH. summary)
OFF
OFF
POSITION ADJUSTMENT
CENTER CH INPUT
XDS ID
CONVERGENCE
POWER INDICATOR
Center
OFF
ON
AUTO
HIGH

1-18 (No.YA091)
3.3 REPLACEMENT OF CHIP COMPONENT
3.3.1 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.
3.3.2 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.
3.3.3 REPLACEMENT STEPS
1. How to remove 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.
(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.
2. How to install Chip parts
[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 Aas indicated in the figure.
(4) Then solder leads Band C.
SOLDER SOLDER
A
B
C
A
B
C

(No.YA091)1-19
SECTION 4
ADJUSTMENT
4.1 ADJUSTMENT PREPARATION
(1) You can make the necessary adjustments for this unit with
either the Remote Control Unit or with the adjustment tools
and parts as given below.
(2) Adjustment with the Remote Control Unit is made on the
basis of the initial setting values, however, the new setting
values which set the screen to its optimum condition may
differ from the initial settings.
(3) Make sure that AC power is turned on correctly.
(4) Turn on the power for set and test equipment before use,
and start the adjustment procedures after waiting at least
30 minutes.
(5) Unless otherwise specified, prepare the most suitable
reception or input signal for adjustment.
(6) Never touch any adjustment setting value which are not
specified in the list for this adjustment.
(7) Presetting before adjustment
Unless otherwise specified in the adjustment instructions,
preset the following functions with the remote control unit.
SETTING POSITION
4.2 MEASURING INSTRUMENT AND FIXTURES
(1) DC voltmeter (or digital voltmeter)
(2) Oscilloscope
(3) Signal generator (Pattern generator)
[NTSC / 480i / 480p / 720p / 1080i / HDMI]
(4) TV audio multiplex signal generator
(5) Remote control unit
4.3 ADJUSTMENT FLOWCHART
WHEN REPLACING SCREEN AND PROJECTION UNIT
• Contains only the main adjustments. Also confirm other adjustments as required.
Setting item Setting position
VIDEO STATUS STANDARD
TINT / COLOR / PICTURE /
BRIGHT / DETAIL 0
COLOR TEMPERATURE LOW
DIG. NOISE CLEAR OFF
NATURAL CINEMA AUTO
VSM OFF
BASS / TREBLE / BALANCE Center
A.H.S OFF
BBE OFF
ASPECT FULL
VERTICAL POSITION Center
ON/OFF TIMER OFF
AUTO SHUTOFF OFF
1 Projection unit
Install projection tube
LENS FOCUS
BEAM SPOT
CRT FOCUS
SCREEN & LOW LIGHT
CONVERGENCE
(match to unreplaced tube)
HIGH LIGHT
HIGH LIGHT
END
3 Projection unit
Install projection tube
LENS FOCUS
LENS FOCUS
BEAM SPOT
CRT FOCUS
SCREEN & LOW LIGHT
G CONVERGENCE
DEFLECTION
DEFLECTION
R CONVERGENCE
B CONVERGENCE
END
SCREEN
N
Y
G convergence
disturbed
R CONVERGENCE
G CONVERGENCE
B CONVERGENCE
END