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SERVICE MANUAL
REAR PROJECTION TELEVISION
02 2003 52096

HD-52Z575, HD-52Z585, HD-61Z575, HD-61Z585

BASIC CHASSIS

RP2

TV

CATV VCR DVD

POWER ASPECT

TWIN

MULTI SCREEN
INDEX

FREEZE

SWAP

SELECT

INPUT 1

V1
INPUT 2

1 4 7
TUNE

2 5 8 0

3 6 9
RETUNE+ TV VIDEO STATUS

V2
INPUT 3

V3
INPUT 4

V4

THEATER DIGITAL-IN PRO

D-IN
SLEEP TIMER DISPLAY SOUND LIGHT

MUTING CH

C.C. C.C.

VOL

OK

VOL

CH MENU VCR CHANNEL PREV NEXT VCR / DVD POWER BACK TV-VCR

REW

PLAY

REC

STOP

PHASE

OPEN / CLOSE

STILL / PHASE

RM-C15G

1 2 3 4 5

PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29

COPYRIGHT © 2004 Victor Company of Japan, Limited.

No.YA092 2004/6

SPECIFICATION
Contents Items Dimensions (W x H x D) Mass TV RF System Color System Sound System Teletext System VHF Low VHF High UHF CATV HD-52Z585 HD-52Z575 126.4cm x 91.4cm x 41.2cm (49-7/8" x 36 x 16-1/4") 37.8kg (84lbs) CCIR (M) NTSC BTSC (Multi Channel Sound) HD-61Z585 HD-61Z575 145.3cm x 104.2cm x 47cm (57-1/4" x 41 x 18-1/2") 44.3kg (98lbs)

Closed Caption (T1-T4 / CC1-CC4) (02ch~06ch) 54MHz~88MHz (07ch~13ch) 174MHz~216MHz (14ch~69ch) 470MHz~806MHz 54MHz~804MHz TV Receiving Low Band : 02~06 by 02~06 Channels and High Band : 07~13 by 07~13 Frequency 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 : A-8, A-4~A-1 by 01, 96~99 TV / CATV Total Channel 180 Channels Intermediate Video IF 45.75MHz Frequency Sound IF 41.25MHz (4.5MHz) Color Sub Carrier 3.58MHz Power Input Power Consumption Projection Source Projection Device Screen Screen Size Speaker Audio Power Output Antenna Terminal (VHF/UHF) Video Audio [INPUT-1/3/4] S-Video Component Video [INPUT-1/2] AC120V, 60Hz 195W (Max) 110W High-pressure mercury lamp HD-ILA device [H:1,312 x V:800 x 3(R/G/B)] Transparent screen (unitized fresnel lens / lenticular lens) 52" (132cm) Measured diagonally 10cm round x 2 (Oblique corn) 10W+10W 75 unbalanced, coaxial, F-type connector x 1 Video / Audio (within center CH Input) 1V (p-p), 75 , negative sync (RCA pin jack x 4) 500mV(rms) (-4dBs), high impedance (RCA pin jack x 9) Mini-DIN 4pin connector x 3 Y: 1V (p-p) positive, 75 negative sync provided C: 0.286V(p-p) (burst signal) Y: 1V (p-p), 75 (RCA pin jack x 2) Pb: ±0.35V, 75 (RCA pin jack x 2) Pr: ±0.35V, 75 (RCA pin jack x 2) 1080i DTV (digital broadcast) ready HDMI connector x 1 (This Digital-in terminal is not compatible with picture signals of personal computer.) Digital : HDMI connector Analog : 500mV(rms) (-4dBs), high impedance (RCA pin jack x 2) VARI : More than 0 to 1000mV (rms) (+2.2dBs) FIX : 500mV(rms) (-4dBs), low impedance (1kHz when modulated 100%) (RCA pin jack x 2) More than 0 to 1000mV (rms) (+2.2dBs) (RCA pin jack x1) 3.5mm mini jack RM-C15G (AA/R6/UM-3 battery x 2) 61" (155cm) Measured diagonally

External Input (1/2/3/4)

Digital Input Audio Output (VARI/FIX)

Video Audio

Sub woofer Output AV Compulink lll Remote Control Unit

Design & specifications are subject to change without notice. 1-2 (No.YA092)

SECTION 1 PRECAUTIONS
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 that 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 (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 with a measuring apparatus (oscilloscope etc.) the LIVE side GND and ISOLATED(NEUTRAL) side GND or EARTH side GND at the same time. If above note will not be kept, a fuse or any parts will be broken. (6) 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. (7) If any repair has been made to the chassis, it is recommended that the B1 setting should be checked or adjusted (See ADJUSTMENT OF B1 POWER SUPPLY). (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 10k 2W 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, screwheads, 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 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 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 1000 per volt or more sensitivity in the following manner. Connect a 1500 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 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 1000 /V, OR MORE SENSITIVITY)

0.15 F AC-TYPE PLACE THIS PROBE ON EACH EXPOSED METAL PART

1500 GOOD EARTH GROUND

10W

(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".

This mark shows a fast operating fuse, the letters indicated below show the rating.

POWER CORD REPLACEMENT WARNING.
Connecting the white line side of power cord to "WHT" character side. PWB White line side

A

V
WHT

PW

(No.YA092)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 predetermined 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. Do not put foreign objects near the ventilation holes as this can result in fire or electrical hazards. Do not block the ventilation holes as this may cause the internal temperature to rise and possibly result fire.

Ventilation

Intake hole

Exhaust hole

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. Take precautionary measures to prevent the unit from tipping in order to protect against accidents and earthquakes. Caution for installation · Do not tilt the TV towards the left or right, or toward the back. · Install the TV in a corner on the floor so as to keep cords out of the way. · The TV will generate a slight amount of heat during operation. Ensure that sufficient space is available around the TV to allow satisfactory cooling.

200mm

200mm

150mm

150mm

50mm

1.3 LAMP UNIT HANDLING CAUTION 1.3.1 PRECAUTION FOR LAMP UNIT The lamp emits high intensity white, ultraviolet and infrared light. Do not look directly at the light during service. Also, do not touch the lamp directly as it presents a burn hazard. Handle with extra care. This lamp emits high heat and contains high-pressure during use. Do not give any impact as this may cause the broken lamp. 1.3.2 PRECAUTION FOR REPLACEMENT Do not replace the light-source lamp immediately after the projector has been used. The temperature of the light-source lamp is still high and could cause a burn. Allow a cooling period of one hour or more before performing replacement. Before starting light-source lamp replacement work, turn off the MAIN POWER switch, and disconnect the power cord from the wall outlet. If touched, the lamp glass surface may rupture and burns may result. Do not touch the glass portion or metal portion. Handle only plastic handle. 1-4 (No.YA092) 1.3.3 LAMP TIMER RESET Refer to the [LAMP REPLACEMENT INSTRUCTIONS] for a detailed operating discription. Use the lamp timer reset only after replacing the lamp.

How to reset Lamp timer 1. Press the MENU key on the remote controller. 2. Select the [LAMP TIMER RESET] with [ / ] key. 3. Enter the [LAMP TIMER RESET] mode the message will appears. 4. Press the [OK] key while the above message appears on the screen. 5. The [LAMP TIMER] has now been reset.

LAMP UNIT

[Lamp Message]
LAMP NEEDS TO BE REPLACED. REFER TO OWNER'S MANUAL FOR REPLACEMENT INSTRUCTIONS. AFTER REPLACING THE LAMP, PLEASE RESET TIMER IN THE TV MENU. PRESS OK, IF YOU DO NOT WAN TO SEE THIS MESSAGE AGAIN.

If this message appears when turn the TV on, need to replace the lamp. Note: This message will appear every time turn on the TV when the lamp needs to be replaced. Press the OK button to make the message disappear, or replace the lamp.

1.4 SCREEN HANDLING CAUTIONS 1.4.1 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. 1.4.2 SCREEN SURFACE Since the screen surface is easily scratched or soiled, use ample care when handling.
DISASSEMBLY PROCEDURE If the screen or screen panel need to be replaced, remove the 20 (52 inch) / 24(61 inch) screws A . FRONT PANEL

SCREEN BRACKET (TOP)

A

(x 20) [52 inch] (x 24) [61 inch]

SCREEN BRACKET (LEFT) Leave the screen with protector, fresnel lens and lenticular lens attached. If cannot be disassembled further. SCREEN ASS'Y SCREEN BRACKET (RIGHT) SCREEN BRACKET (BOTTOM)

1.4.3 PRECAUTIONS FOR CLEANING AND REPLACEMENT The screen assembly is made from the lenticular lens and fresnel lens. The anti static proceeding and the AR coating cover the surface of the lenticular lens. Rubbing the surface with something hard, the coating may peel off. When the screen is dirty, gently wipe it with a soft cloth. If the screen is very dirty, wipe it down with a cloth dipped in a diluted kitchen cleaner (neutrality detergent) and thoroughly wrung-out. Then wipe immediately after with clean, dry cloth. Never use the organic solvent such as the alcohol or benzine. The screen assembly replacement is required if the coating was peel off. Alkaline detergent or acidity detergent can not be be used. The notched side of the lenticular lens and the fresnel lens are faced each other. Do not rub the screen when cleaning it or replaceing it. Rubbing the screen may cause of the scratch of the screen by its notch.

1.5 SERVICE PARTS KIT INSTRUCTIONS Due to the character of this product, these 3 parts kits are prepared. Please note these matters when replacing or ordering the parts. 1.5.1 PART NUMBER AND CONSTRUCTION Parts Number TS-COP5A-SA Part name OPTICAL / DRIVE ASS'Y PRECAUTION FOR USING 1) When it is required to replace one of these, replace this kit. Replace all components of this kit. : HD-ILA device, optical block MAIN DRIVE PWB ASS'Y. The memory IC stored adjustment data. So it is required to replace all parts together. 2) When replace the MAIN DRIVE PWB ASS'Y, take off the memory IC from the original board and replace with new one. When replace the MAIN DRIVE PWB ASS'Y, do same manner. Replace memory IC. 3) After the replacement of the Optical block, objective lens focus adjustment is required.

OPTICAL / DRIVE ASS'Y CONSTRUCTION · OPTICAL BLOCK (Included HD-ILA DEVICE, PROJECTION LENS) · MAIN DRIVE PWB ASS'Y

(No.YA092)1-5

SECTION 2 SPECIFIC SERVICE INSTRUCTIONS
2.1 TECHNICAL INFORMATION 2.1.1 FEATURES This projection TV is equipped with 3 pieces of HD-ILA devices. Newly developed HD-ILA devices are mounted. This projection TV enables the complete projection of 1,312 x 800 dot S-XGA (totaling the effective number of 3,148,800 pixels, 3 RGB devices). A newly developed mercury lamp and a numerical aperture as high as 93% can produce high output of light. A contrast ratio of 1000:1 reproduces a contrast image with high fidelity. This projection TV features portability, high density, high numerical aperture, compact devices, as well as the lightest weight in its class. 2.1.2 PROJECTION UNIT The digital gamma compensation realizes high-fidelity reproduction of a dark part and a bright part on an image and facilitates gradation adjustment. A newly developed mercury lamp is used to ensure highfidelity color reproduction. This projector is compatible with various sources, including the ADPC (adaptive digital pixel conversion) of natural images and animations recorded as data. This projection TV features a newly developed mercury lamp that a user can replace.

2.1.4 HD-ILA DEVICE STRUCTURE

R / G / B. DEVICE (Side view) Side View R DEVICE Glass substrate

B DEVICE Drive IC G DEVICE Lamp unit Incident light Flat film

IN OUT FRONT
IN

OUT
2.1.3 IMAGE LIGHT FLOW
DEVICE UNIT (Top view) Incident light out

FRONT

Reflective pixel electrode

Liquid Transpealancy crystal electrode

G B

R

Mirror

PIXEL VIEW (Front view)
Device Device Device

B

RG B

R

Incident light in

12.0 µm 12.0 µm Pixel

G
2.1.5 SPECIFICATION Resolution (Pixel number) Pixel Pitch (Pixel Size) Aspect ratio Contrast ratio Aperture ratio

Mirror Mirror

H:1,312 x V:800 x 3 (R/G/B) at about 3,200,000(Pixels) 12.0µm(H) x 12.0µm 16 : 9 1000 : 1 93% or more 0.907"

Effective pixel measurement 1-6 (No.YA092)

2.1.6 MAIN (CHASSIS) COMPUTER (CPU) FUNCTION (DIGITAL SIGNAL PWB / IC7001 : MN102H60K)
Pin No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 NC P_MU N.C A_MU NC NC ON_TIMER N.C N.C N.C POW_LED WORD MI-CK MI-TK MI-RX MI-REQ VDD N.C VSS X1 N.C VDD OSC1 OSCO MODE NC A92_RST NC NC N.C NC NC N.C AVDD NC DsyncSW2 NC N.C NC MECA_SW MAIN_POW VARI/FIX VREF NC AFT1 KEY2 KEY1 N.C N.C AC_IN

Pin name

I/O O O O O O I I O O I I I I O I O I O I O O I I I I Not used

Function
Picture muting [Muting : H] Not used Audio muting [Muting : H] Not used Not used dimmer operating [Low dimmer : L] Not used Not used Not used Lighting for POWER LED [ON : H] Programming control Communication for MAIN CPU Communication for MAIN CPU Communication for MAIN CPU Communication for MAIN CPU 3.3V Not used GND STB 3.3V Not used 3.3V Oscillation for system clock (Input) Oscillation for system clock (Output) STB 3.3V Not used Reset for TC90A92 [RESET : H] Not used Not used Not used Not used Not used Not used STB 3.3V Not used Digital sync. signal select Not used Not used Not used Power ON (mecha) Main power control [ON : L] Vari & Fix sel. [ VARI : L] GND Not used AFC control Front key Front key Not used Not used AC for timer count

Pin No.
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 NC NC N.C

Pin name

I/O I O I Not used Not used Not used STB 3.3V

Function

VREF PDP_TX PDP_RX SDA0 SCL0 NC NC AVSS DIN_PHOT NC NC NC VDD NC NC NC NC N.C N.C SBD5 SBT5 NMI NC REMOCON V_SYNC WAKE POWERGOOD REC_LED RST VDD SCL3A SDA3A SCL3B SDA3B NC LR_SW NC NC VSS SCL5055 NC SDA5055 NC N.C 15K/OTH DsyncSW1 57_BUSY

Communication for Main drive CPU Communication for Main drive CPU

I/O I2C bus (data) for IC memory O I I I I I I I I O I I O I2C bus (clock) for IC memory Not used Not used GND Optical DET. out Not used Not used Not used STD 3.3V Not used Not used Not used Not used Not used Not used For flash memory written 3.3V Not used For remote control input For vertical sync. input For return from SHM (SHASSIS MI-COM) stop [WAKEUP : L] Power supply error detect [ERROR : HPOWER OFF] Lamp LED ON [ON:H] Hard reset for CPU [RESET : L] STD : 3.3V I2C(clock) control bus

I/O For flash memory written

I/O I2C(data) control O I2C(clock) control

I/O I2C(data) control O Not used Switcher for HDMI/DVI Not used Not used GND

I/O I2C data control Not used I/O I2C bus control (JCC5055) O O I Not used Not used Y-signal select [ANA525i : H] Sync. signal select JCC5057BUSY [5057BUSY : H]

(No.YA092)1-7

2.1.7 SUB (OSD) MICRO COMPUTER (CPU) FUNCTION (DIGITAL SIGNAL PWB / IC7601 : M306V7FGFP)
Pin No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

Pin name
VHOLD1 HFLT1 N.C N.C DIGRO TB1in REMO BYTE CNVss DIGGO DIGBO RESET Xout Vss Xin VccI OSC1 OSC2 INT1 INT0 OUT1 OUT2 N.C N.C N.C N.C CTA2/RTS2 CLK2 RxD2 TxD2 SDA2 DIGR1 DIGG1 DIGB1 TxDO RxDO CLKO RTSO P5.7 P5.6 HOLD P5.4 P5.3 P5.2 P5.1 WR P4.7 P4.6 P4.5 P4.4

I/O I Data Slicer

Function

Pin No.
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

Pin name
N.C N.C N.C N.C N.C N.C N.C N.C N.C N.C N.C HSYNC N.C VSYNC N.C N.C N.C N.C N.C N.C N.C N.C N.C N.C N.C N.C N.C N.C N.C N.C N.C N.C N.C WAKE CARD_DET POWER_SW N.C N.C DIGR2 DIGG2 DIGB2 N.C KEY2 KEY1 VHOLD2 HLF2 CVIN2 TVSETB VCCE CVIN1

I/O I I O I I O O O I Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used

Function

I/O LPF, Video Signal(Data Slicer) O I I I I O O I O I I I I I O O I O Not used Not used OSD for R [0] AC In Remocon in Data Buss width SW [L:Fixed] Programmingswitching [Normal:L/writing:H] OSD Output [G:0] OSD Output [B:0] RESET MAIN CLK DGND MAIN CLK 16MHz STB 3.3V OSD for Clock Not used COMPLINK Detect SHM (SHASSIS MI-COM) Serial Communication (Request Signal) OSD YS Out OSD YM Out Not used Not used Not used Not used Not used Not used ATSC Serial Communication ATSC Serial Communication

OSD for H.SYNC Input Not used OSD for V.SYNC Input Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Reset device for SHM (SHASSIS MI-CON) ATSC Card Detection Detection of Front Not used Not used OSD Output [R:2] OSD Output [G:2] OSD Output [B:2] Not used Not used Not used Data Slicer

I/O Not used O O O I O I O I I O I I OSD Output [R:1] OSD Output [G:1] OSD Output [B:1] Programming Programming Programming Programming Not used Not used Programming SW. [Natural:H/Programming:L] Not used Not used Not used Not used Programming SW. [Natural:L/Programming:H] Data Output(TX) Data Input(RX) Clock Input Not used

I/O Video Signal LPF(Data Slicer) I I I I Video Input Signal, SUB-CCD(Data Slicer) Test Input Terminal [L:Fixed] STB 5V Video Input Signal, MAIN CCD(Data Slicer)

1-8 (No.YA092)

SECTION 3 DISASSEMBLY
3.1 DISASSEMBLY PROCEDURE · While not in service, place the chassis back its original position. · Make sure that the power cord plug is pull out from the AC wall outlet. 3.1.1 SPEAKER GRILL (L&R) (Fig.1) (1) Remove 2 screws [ A ] from rear side. (2) Take out the SPEAKER GRILL. * Remove the both side SPEAKER GRILL same manner. 3.1.2 SPEAKER (Fig.1) · Take out the SPEAKER GRILL. (1) Remove 4 screws [ B ]. (2) Take out the SPEAKER. * Remove the both side SPEAKER same manner. 3.1.3 FRONT PANEL (Fig.1) · Take out the SPEAKER GRILL. (1) Remove 4 screws [ C ]. (2) Take out the FRONT PANEL. 3.1.4 FRONT LED PWB (Fig.1) · Take out the SPEAKER GRILL. · Take out the FRONT PANEL. (1) Remove 2 screws [ D ] from rear side of FRONT PANEL. (2) Take out the FRONT LED PWB. 3.1.5 LAMP COVER (Fig.1) · Take out the SPEAKER GRILL of LEFT SIDE. (1) Remove a screws [ E ]. (2) Take out the LAMP COVER.

LAMP COVER

FRONT A
(x2)

E
(x1)

D
(x2)

SPEAKER GRILL(L) FRONT LED PWB FRONT PANEL BODY SPEAKER

C
(x4)

B

(x4)

SPEAKER GRILL(R)

Fig.1

(No.YA092)1-9

3.1.6 SCREEN ASS'Y (Fig.2) · Take out the SPEAKER GRILL. · Take out the FRONT PANEL. (1) Remove the 4 screws [ F ]. (2) Remove 10 screws [ G ] from rear side. (3) Take out the SCREEN ASS'Y. CAUTION : · 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. 3.1.7 MIRROR (Fig.2) · Take out the SPEAKER GRILL both side. · Take out the FRONT PANEL. · Take out the SCREEN ASS'Y. (1) Remove 12 screws [ H ] attaching the MIRROR HOLDER of the upper, left and right side. (2) Raise slightly to disengage of the MIRROR from the bottom holder. (3) Take out the MIRROR. NOTE : * The MIRROR is front-coated. Do not touch the front of the MIRROR. * At least 2 persons are recommended for removable and reassemble. 3.1.8 SIDE CONTROL BASE (Fig.2) · Take out the SCREEN ASS'Y. (1) Remove 4 screws [ I ]. (2) Take out the SIDE CONTROL BASE. 3.1.9 SIDE CONTROL PWB (Fig.2) · Take out the SCREEN ASS'Y. · Take out the SIDE CONTROL BASE. (1) Remove 4 screws [ J ] from rear side of SIDE CONTROL BASE. (2) Take out the SIDE CONTROL PWB. 3.1.10 FILTER COVER (Fig.2) · Take out the SCREEN ASS'Y. (1) Remove 2 screws [ K ]. (2) Take out the FILTER COVER. * Remove the both side FILTER COVER same manner. 3.1.11 BACK COVER (Fig.2) · Take out the FRONT PANEL. · Take out the SCREEN ASS'Y. (1) Remove 4 screws [ L ]. (2) Remove 9 screws [ M ]. (3) Remove 2 screws [ N ] from rear side. (4) Slightly pull for backside to disengage of the BACK COVER from hooks. (5) Take out the BACK COVER. NOTE : · Because of the large size, at least two persons are recommended for removal and reassemble.

MIRROR HOLDER

G
MIRROR

(x10)

BACK COVER

H
(x12)

L
FILTER COVER (x4)

N
(x2)

F
(x4) SCREEN ASS'Y

K
(x2)

J
(x4)

M

(x9) BODY

REAR SIDE VIEW

SIDE CONTROL PWB

FRONT

I

(x4)

SIDE CONTROL BASE

N

Fig.2
1-10 (No.YA092)

3.1.12 BODY COVER (Fig.3) (1) Remove 9 screws [ O ]. (2) Remove 6 screws [ P ]. (3) Take out the BODY COVER. 3.1.13 BODY BRACKET (Fig.3) · Take out the BODY COVER. (1) Remove 4 screws [ Q ]. (2) Take out the BODY BRACKET. 3.1.14 TOP SHADE BRACKET (Fig.3) · Take out the BODY COVER. · Take out the BODY BRACKET. (1) Remove 2 screws [ R ]. (2) Take out the TOP SHADE BRACKET. 3.1.15 MAIN UNIT (Fig.3) · Take out the BODY COVER. · Take out the BODY BRACKET. · Take out the TOP SHADE BRACKET. · Take out the connector [FJ], [SW], [SPR], [SPL], [FL]. (1) Remove 2 screws [ S ] from rear side. (2) Pull out the MAIN UNIT rear side. 3.1.16 SCREEN ASS'Y (Fig.3) · Take out the MAIN UNIT. (1) Remove 24 screws [ T ] ( x 24:61" / x 20:52") from FRONT CABINET. (2) Take out the SCREEN ASS'Y. 3.1.17 FRONT PANEL (Fig.3) · Take out the SCREEN ASS'Y. (1) Remove 20 screws [ U ] ( x 20:61" / x 16:52") from FRONT CABINET. (1) Take out the FRONTPANEL. CAUTION
· 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 directly at the light during service. Also, do not touch the lamp directly as it presents a burn hazard.

FRONT PANEL

U

(x20 : 61") (x16 : 52") SCREEN BRACKET

BODY TOP SHADE BRACKET

R
(x2)

T

(x24 : 61") (x20 : 52")

TOP SHADE BRACKET FRONT CABINET

R
(x2) SCREEN SCREEN BRACKET BODY BRACKET

Q
BACK COVER

(x4) MAIN UNIT

FRONT
BODY BODY COVER

S
(x2)

O

P
(x9)

(x6)

Fig.3
(No.YA092)1-11

3.1.18 AV TERMINAL BOARD (Fig.4) (1) Remove 5 screws [ a ]. (2) Remove a screw [ b ]. (3) Pull out the POWER CORD CLAMP . (4) Remove the nut [ c ] attaching the ANTENNA TERMINAL. (5) Take out the AV TERMINAL BOARD. 3.1.19 PB HOLDER BRACKET (Fig.4) (1) Remove 4 screws [ d ]. (2) Take out the PB HOLDER BRACKET. 3.1.20 SUB DRIVE PWB (Fig.4) · Take out the PB HOLDER BRACKET. (1) Disconnect the connector [CN401] and [CN402]. (2) Remove 6 screws [ e ]. (3) Take out the SUB DRIVE PWB. 3.1.21 POWER PB BRACKET (Fig.4) (1) Remove a screw [ f ]. (2) Take out the POWER PB BRACKET. 3.1.22 POWER PWB (Fig.4) · Take out the POWER PB BRACKET. (1) Disconnect the connector [CN90BL], [CN90SE], [CN90AA], [CN90B], [CN90DD] and [CN90G]. (2) Remove a screw attaching the earth wire. (3) Remove 5 screws [ g ]. (4) Take out the POWER PWB. 3.1.23 DIGITAL SIGNAL PWB (Fig.4) (1) Disconnect the connector [CN001], [CN002], [CN003], [CN0FC] and [CN0LV2]. (2) Remove a screw attaching the earth wire. (3) Remove a screw [ h ]. (4) Take out the DIGITAL SIGNAL PWB. 3.1.24 ANALOG BRACKET (Fig.4) (1) Remove a screw [ i ]. (2) Take out the ANALOG BRACKET. 3.1.25 RECEIVER PWB (Fig.4) · Take out the ANALOG BRACKET. (1) Disconnect the connector [CN10FC], [CN10PH], [CN100R], [CN10PH], [CN100A], [CN100T], [CN100F], [CN10FJ], [CN10FL], [CN10SW], [CN10AA] and [CN10SP]. (2) Remove 4 screws [ j ]. (3) Take out the RECEIVER PWB. 3.1.26 ANALOG SIGNAL PWB (Fig.4) · Take out the RECEIVER PWB. (1) Disconnect the connector [CN001], [CN002], [CN00D], [CN0J1], [CN0J2], [CN00T], [CN00F] and [CN00G]. (2) Remove 2 screws [ k ]. (3) Take out the ANALOG SIGNAL PWB. 3.1.27 REGULATOR PWB (Fig.4) · Take out the RECEIVER PWB. (1) Disconnect the connector [CN20D], [CN203] and [CN20B]. (2) Remove 4 screws [ l ]. (3) Take out the REGULATOR PWB.

3.1.28 REAR JACK PWB (Fig.4) · Take out the AV BOARD. (1) Disconnect the connector [CNPH], [CNJ0J2]. (2) Remove 2 screws [ m ]. (3) Take out the REAR JACK PWB. 3.1.29 DUCT PCS & THERMOSTAT (Fig.4) (1) Remove 4 screws [ n ]. (2) Take out the DUCT PCS. (3) Remove 2 screws [ o ]. (4) Take out the THERMOSTAT.

[CNJ0J1]

and

3.1.30 FAN CONTROL PWB (Fig.4) (1) Disconnect the connector [CN801], [CN802], [CN803] and [CN804]. (2) Remove a screw [ p ]. (3) Take out the FAN CONTROL PWB. 3.1.31 REMOCON SENSOR PWB (Fig.4) (1) Remove a screw [ q ]. (2) Take out the REMOCON SENSOR PWB. 3.1.32 SHADE COVER (Fig.3) (1) Remove 2 screws [ r ]. (2) Take out the SHADE COVER. 3.1.33 FRONT SHADE BRACKET (Fig.4) · Take out the FRONT SHADE BRACKET. (1) Remove 2 screws [ s ]. (2) Take out the FRONT SHADE BRACKET.

3.1.34 OPTICAL / DRIVE ASS'Y (Fig.4) · Take out the MAIN UNIT. (1) Remove 7 screws [ t ]. (2) Slightly raise the both side and take out the OPTICAL / DRIVE ASS'Y. * The OPTICAL / DRIVE ASS'Y contains precision optical components (prism mirrors, etc.) Handle carefully and avoid imparting strong shock. 3.1.35 COOLING FAN (OPTICAL / DRIVE ASS'Y) (Fig.4) (1) Remove 3 screws [ u ]. (2) Take out the SIROCCO CASE TOP. (3) Remove 3 screws [ v ]. (4) Take out the COOLING FAN (OPTICAL / DRIVE ASS'Y). 3.1.36 EXHAUST FAN (Fig.4) (1) Remove 2 screws [ w ]. (2) Take out the L. FAN BRACKET ASSY. (3) Remove 4 screws [ x ]. (4) Take out the EXHAUST FAN. 3.1.37 COOLING FAN (LAMP BALLAST UNIT) (Fig.4) (1) Remove 4 screws [ y ]. (2) Take out the COOLING FAN (LAMP BALLAST UNIT). 3.1.38 LAMP BALLAST UNIT, BALLAST COVER (Fig.4) (1) Remove 4 screws [ z ]. (2) Take out the BALLAST COVER & LAMP BALLAST UNIT.

1-12 (No.YA092)

FRONT
REMOTE SENSOR PWB

q

(x1) LAMP UNIT

r
(x2)

p
(x1) FAN CONTROL PWB

s
(x2) FRONT SHADE BRACKET

SHADE COVER

OPTICAL / DRIVE ASS'Y

ANALOG SIGNAL PWB

RECEIVER PWB

t j
(x7) (x4)

e

(x6)

SUB DRIVE PWB

REGULATOR PWB ANALOG BRACKET

o k
(x2) THERMOSTAT

(x2)

n
(x4)

d
(x4) PB HOLDER BRACKET

l
(x4) TEMP SENSOR PWB LAMP FAN BRACKET ASSY

w
(x2)

DUCT PCS

u i
(x1) REAR JACK PWB SIROCCO CASE TOP EXHAUST FAN COOLING FAN
(OPTICAL / DEVICE ASS'Y)

m

(x2)

(x3)

x

(x4)

h
(x1) EARTH WIRE

v
(x3)

LAMP COVER SW PWB

y z
(x4)

(x4) COOLING FAN
(LAMP BALLAST UNIT)

DIGITAL SIGNAL PWB

BALLAST COVER

f
(x1) ANTENNA TERMINAL

LAMP BALLAST UNIT

FRONT
UNIT BASE BRACKET POWER PB BRACKET

b

(x1)

AV TERMINAL BOARD

POWER PWB EARTH WIRE POWER CORD CLAMP

c a
POWER CORD (x1) (x5)

g

(x5)

Fig.4
(No.YA092)1-13

3.1.39 SHIELD PLATE ATTACHMENT PROCESS · Take out the DUCT TOP. · Take out the MAIN DRIVE PWB. (1) Copper film case with laminate surface to be top. (2) Fold 9 points as shown in figure an arrow view (Fig.5 [ A ]). (3) Attach the D.F. (double-faced) tapes as shown in Fig.5- [ C ] . (4) Stick the tape as shown in Fig.5- [ D ]. (5) Make copper film case to be box-shape. (6) Install the MAIN DRIVE PWB. (7) Attach the shield (copper film) tapes 3 positions as shown in Fig.6- [ B ]. (8) Install the DUCT TOP. (9) Attach the shield (copper film) tapes 4 positions as shown in Fig.7- [ B ]. (10) Then attach the shield (copper film) tapes 11 positions as shown in Fig.8- [ B ].

A

SHIELD PLATE OPTICAL BLOCK

SHIELD PLATE

C

(x2)

FRONT

D
(x1)

C
(x1)

Fig.5

FRONT

MAIN DRIVE PWB

B

(x3)

FRONT

B

(x4)

DUCT TOP PLATE

SHIELD PLATE

Fig.6
DUCT TOP

FRONT
MAIN DRIVE PWB DUCT TOP

B B
(x3)

(x4)

MAIN DRIVE PWB

FRONT SHIELD PLATE

B

(x4)

SHIELD PLATE

Fig.7
OPTICAL BLOCK

B B
(x4) OPTICAL BLOCK FRONT (x4)

B

(x3)

SHIELD PLATE

B

(x7)

UNIT BASE BRACKET

Fig.8
1-14 (No.YA092)

3.2 MEMORY IC REPLACEMENT 3.2.1 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. 3.2.2 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. 1) 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. 2) The SERVICE MENU screen of Fig.1 is displayed. 3) Verify what to set in the SERVICE MENU, and set whatever is necessary (Fig.1). Refer to the SERVICE ADJUSTMENT for setting. 4) Press the [BACK] key to return the SERVICE MENU. 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.

SERVICE MENU SCREEN
SERVICE MENU 1. ADJUST 2. SELF-CHECK 3. I2C STOP

Fig.1 3.2.3 SERVICE MENU SETTING ITEMS Setting item Item No. 1.ADJUSTMENT VIDEO SYSTEM AUDIO SYSTEM DRIVE SYSTEM SYSTEM SETTING S001~S039 T001~T010 D001~D187 Z001~Z010 Adjust Do not adjust (Fixed value)

Remark

PANEL CONTROL SYSTEM P001~P010

TV CATV VCR DVD

TV / CATV
(Set toTV)
TWIN FREEZE

ASPECT

POWER

MULTI SCREEN

POWER VCR/DVD
(Set to VCR)

INDEX

SWAP

SELECT

INPUT 1

V1

1 4 7
TUNE

2 5 8 0

3 6 9
RETURN+ TV

Number key

INPUT 2

V2
INPUT 3

V3
INPUT 4

SERVICE MENU ITEM SELECT KEY 1 3 & 9 VIDEO STATUS DISPLAY
(Enter the SERVICE MENU)

V4
DIGITAL-IN

THEATER PRO

VIDEO STATUS

SLEEP TIMER

D-IN
SLEEP TIMER DISPLAY
+

SOUND

LIGHT

(Skip / Enter the SERVICE MENU)

MUTING (Memory key) FUNCTION MENU

MUTING

C.C.

CH VOL VOL

C.C.

OK CH

FUNCTION
BACK

(Value setting key)

MENU VCR CHANNEL PREV NEXT

(SERVICE ITEM select key)

VCR / DVD POWER TV / VCR

(Come out SERVICE MENU key )

BACK

REW

PLAY

FF

(Return key)

REC

STOP

PAUSE

OPEN CLOSE

STILL PAUSE

RM-C15G

Fig.2 (No.YA092)1-15

3.2.4 SETTING OF FACTORY SHIPMENT 3.2.4.1 BUTTON OPERATION Setting item Setting value POWER OFF INPUT TV CHANNEL CABLE-02 VOLUME 10 3.2.4.2 REMOTE CONTROL DIRECT OPERATION Setting item Setting value INPUT TV CHANNEL CABLE-02 VOLUME 10 MUTING OFF DISPLAY OFF SOUND A.H.S OFF BBE ON SMART SOUND OFF ASPECT REGULAR CLOSED CAPTION (C.C) OFF VIDEO STATUS DYNAMIC TWIN SOURCE LEFT SIDE : CA02 RIGHT SIDE : INPUT1

3.2.4.3 REMOTE CONTROL MENU OPERATION (1)PICTURE ADJUST (VIDEO STATUS) NTSC, 525i, 525p / 1125i, 750p Setting item STANDARD TINT COLOR PICTURE BRIGHT DETAIL COLOR TEMPERATURE NTSC, 525i, 525p 1125i, 750p NTSC, 525i, 525p 1125i, 750p NTSC, 525i, 525p 1125i, 750p NTSC, 525i, 525p 1125i, 750p NTSC, 525i, 525p 1125i, 750p NTSC, 525i, 525p 1125i, 750p 00 00 00 00 00 00 00 00 00 00 LOW LOW

DYNAMIC 00 00 00 00 +10 +10 00 00 +05 +05 HIGHT HIGHT

THEATER 00 00 00 00 00 00 00 00 00 00 HIGHT LOW

GAME 00 00 00 00 -10 -10 00 00 00 00 HIGHT HIGHT

(2)SOUND ADJUST Setting item TREBLE BASS BALANCE MTS (4) INITIAL SETUP Setting item POSITION ADJUSTMENT CENTER CH INPUT XDS ID POWER INDICATOR VIDEO-1 MONITOR OUT LANGUAGE CLOSED CAPTION TV SPEAKER VIDEO INPUT LABEL TEXT

Setting position 00 00 00 STEREO

(3)CLOCK / TIMERS / OTHER Setting item Setting position SET CLOCK CODE --- (Unnecessary to set) ON / OFF TIMER NO COLOR MANAGEMENT ON DYNAMIC GAMMER ON

Setting position Center OFF ON HIGH OFF ENG

Setting item NOISE MUTING FRONT PANEL LOCK AUTO SHUT OFF DIGITAL-IN V-CHIP AUTO DEMO DIGITAL-IN AUDIO V1 SMART INPUT AUDIO OUT AUTO TUNER SET UP ON OFF OFF

Setting position

SIZE-1 (at 480signal in) OFF OFF DIGITAL OFF FIX Unnecessary to set

CAPTION OFF OFF ON BLANK

1-16 (No.YA092)

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. 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. (2) Shift with the tweezers and remove the chip part.

[Transistors, diodes, variable resistors, etc.] [Transistors, diodes, variable resistors, etc.] (1) Apply extra solder to each lead.
SOLDER SOLDER

(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.

A B C

(4) Then solder leads B and C.
A B

Note : After removing the part, remove remaining solder from the pattern.

C

(No.YA092)1-17

SECTION 4 ADJUSTMENTS
4.1 ADJUSTMENT PREPARATION (1) You can make the necessary adjustments for this unit with either the remote control unit or with the adjustment equipment 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 the 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 parts, which are not specified in the list for this variable resistors, transformers, trimmer capacitors, etc. 4.2 MEASURING INSTRUMENT AND FIXTURES · DC voltmeter (or Digital voltmeter) · Signal generator (Pattern generator) [ NTSC / 525i COMPONENT / 525p / 1125i ] · Remote control unit (7) Presetting before adjustment. Unless otherwise specified in the adjustment instructions, preset the following functions with the remote control unit. Presetting position Setting item VIDEO STATUS PICTURE COLOR TEMP. SOUND BBE A.H.S ASPECT All (00) LOW All (00) OFF OFF FULL Settings STANDARD

1-18 (No.YA092)

4.3 BASIC OPERATION OF THE SERVICE MENU 4.3.1 TOOL OF SERVICE MENU OPERATION Operate the SERVICE MENU with the remote controller unit.
SERVICE MENU

4.3.2 HOW TO ENTER THE SERVICE MENU (1) Press the [SLEEP TIMER] key and while indication of "SLEEP TIMER 0 MIN." is being displayed, press [DISPLAY] key and [VIDEO STATUS] key simultaneously, and the SERVICE MENU screen of Fig.1 will be displayed.
Select the SERVICE MENU ITEM

SERVICE MENU 1. ADJUST 2. SELF-CHECK 3. I2C STOP

(2) When the SERVICE MENU is displayed, press any key of the [1] to [3] key to enter the corresponding menu mode.
Select the setting ITEM & SETTING VALUE

(3) Select the service item using the [FUNCTION ( / )] key. (4) Set the value using the [FUNCTION ( / )] key. (5) Press the [MUTING] key to memorize the adjustment value, If not to do it, adjustment data is not memorized to the memory IC. And if exit the adjustment mode before memorize the data, the adjustment which your changed value is canceled.

Fig.1

KEY FUNCTION

CAUTION Individual items 1, 2 and 3 on the SERVICE MENU screen (Fig.1) are selected by the Number key (Fig.2). When selecting each item on the SERVICE MENU, if [4] ~ [8] keys other than [1], [2], [3] and [9] keys are pressed by mistake, another screen that is not the SERVICE MENU will appear. In such a case, press the [BACK] key immediately and return to the SERVICE MENU screen. Do not press the [MUTING] key.

TV / CATV
(Set toTV)

TV CATV VCR DVD

ASPECT

POWER

MULTI SCREEN

POWER VCR/DVD
(Set to VCR)
3 6 9
RETURN+ TV

TWIN FREEZE

INDEX

SWAP

SELECT

INPUT 1

V1

1 4 7
TUNE

2 5 8 0

NUMBER key SLEEP TIMER

INPUT 2

V2
INPUT 3

V3
INPUT 4

V4 D-IN

SERVICE MENU ITEM SELECT KEY 1 3 & 9 VIDEO STATUS DISPLAY
(Enter the SERVICE MENU)

THEATER DIGITAL-IN PRO

VIDEO STATUS

SLEEP TIMER DISPLAY
+

SOUND

LIGHT

(Skip / Enter the SERVICE MENU)

MUTING (Memory key) FUNCTION MENU
(Value setting key)

MUTING

C.C.

CH VOL VOL

C.C.

OK CH

FUNCTION
BACK

MENU VCR CHANNEL PREV NEXT

(SERVICE ITEM select key)

VCR / DVD POWER TV / VCR

REW

PLAY

FF

(Come out SERVICE MENU key )

BACK

4.3.3 HOW TO EXIT THE SERVICE MENU Press the [MENU] key to exit the SERVICE MENU.

REC

STOP

PAUSE

(Return key)

OPEN CLOSE

STILL PAUSE

RM-C15G

Fig.2

(No.YA092)1-19

4.3.4 DESCRIPTION OF STATUS DISPLAY The status display on the upper part of the SERVICE MENU screen is common. (1) SIGNAL SYSTEM NTSC3 : NTSC3.58 NTSC4 : NTSC4.48 525I : 525i 525P : 525p 750P : 750p 1125I6 : 1125i 60Hz RGB5 : RGB 525i D525I : digital 525i D525P : digital 525p D1256I6 : digital 1125i 60Hz H525I : HDMI 525i H525P : HDMI 525p H750P : HDMI 750p H1125I6 : HDMI 1125i 60Hz
1

SERVICE MENU
SERVICE MENU 1. ADJUST 2. SELF-CHECK 3. I2C STOP

(2) ASPECT FULL : FULL PANO : PANORAMA 1609 : CINEMA REGU : REGULAR TEXT : TEXT signal FRZ : Freeze M2 : Twin screen TEXT2 : TEXT Twin screen M12 : Index (12CH) (3) VIDEO STATUS STD : STANDARD DYN : DYNAMIC TH : THEATER GAME : GAME (4) WHITE BALANCE H : HIGH L : LOW 4.3.5 SETTING OF THE SERVICE MENUS 4.3.5.1 [1.ADJUST] Do not change settings of items that are not included in the "ADJUSTMENT PROCEDURE". Set output data to the video and DIST circuits. [Function ( / )] key For scrolling up/down the setting items.

ADJUST MODE
STATUS DISPLAY SETTING ITEM No. SIGNAL SYSTEM SETTING ITEM ASPECT
S001 NTSC3 PREPARE FULL

TH

H

SETTING VALUE WHITE BALANCE VIDEO STATUS

S001...

T001...

P001...

D001...

Z001

[SLEEP TIMER] key For switching to the next items.

S001

T001

P001

D001

Z001

[Function ( / )] key For scrolling up/down the setting values. 4.3.5.2 4.3.5.3 [2.SELF CHECK] Refer to "SECTION 5 TROUBLESHOOTING" [3.I2C STOP] Setting for this item is not required in servicing

1-20 (No.YA092)

4.4 INITIAL SETTING VALUE OF SERVICE MENU (1) Adjustment of the SERVICE MENU is made on the basis of the initial setting values; however, the new setting values which set the screen in its optimum condition may differ from the initial setting. (2) Do not change the initial setting values of the setting items NOT LISTED IN ADJUSTMENT. (3) "Fixed" is not adjusted. CAUTION: Never change the initial setting value any adjustments except for those that are designated in the adjustment procedures. In case where you have made undesignated adjustments by mistake, never press the [MUTING] key on the remote control unit. Whenever you had not pressed the [MUTING] key, you would be able to recover the initial value by switching the [POWER] key. 4.4.1 [1.ADJUST] VIDEO SYSTEM Item No. S001 S002 S003 S004 S005 S006 S007 S008 S009 S010 S011 S012 S013 S014 S015 S016 S017 S018 S019 S020 S021 S022 S023 S024 S025 S026 S027 S028 S029 S030 S031 S032 S033 S034 S035 S036 S037 S038 S039 Item name PREPARE NTSC BL NTSC CNT NT CR OF NT CB OF 525i BL 525i CNT 5i CB OF 5i CR OF 5i CR GN 5i CB GN HD BL HD CB OF HD CR OF RT CONT RT CB OF RT CR OF RT CL GA PC CL MB PC CL LB PC CL MR PC CL LR (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) R DRIVE G DRIVE B DRIVE (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) ILA COM Variable range 0~31 0~15 0~255 0~15 0~15 0~15 0~255 0~15 0~15 0~15 0~15 0~63 0~63 0~63 0~15 0~15 0~15 0~15 0~7 0~255 0~3 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 Setting value 0 1 44 4 4 1 44 0 0 4 4 0 0 0 7 2 5 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 AUDIO SYSTEM Item No. T001 T002 T003 T004 T005 T006 T007 T008 T009 T010 Item name IN LEVEL LOW SEP HIGH SEP AFC (NO DISPLAY) ATT V ON ATT U ON ATT C ON (NO DISPLAY) (NO DISPLAY) Variable range 0~255 0~255 0~255 0~255 0~255 0~1 0~1 0~1 0~255 0~255 Setting value 007 037 033 0 (Fixed) 0 (Fixed) 0 (Fixed) 0 (Fixed) 0 (Fixed) 0 (Fixed) 0 (Fixed)

PANEL CONTROL SYSTEM (Do not adjust) Item No. P001 P002 P003 P004 P005 P006 P007 P008 P009 P010 Item name TM HOR H TM HOR L TM MIN TEMP (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) Variable range 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 Setting value (Fixed) 0 0 0 0 0 0 0 0 0 0

DRIVE SYSTEM(1) (Do not adjust) Item No. D001 D002 D003 D004 D005 D006 D007 D008 D009 D010 D011 D012 D013 D014 D015 D016 D017 D018 D019 D020 Item name SLV GN SLVH GN SLH GN SLV Pf SLH Pf H SLH Pf L SL EGCON SL EGONF SL CRGON SL CRGON SL ON OF SV GN SVH GN SH GN SV Pf SV Pf H SV Pf L SYL CON SYL CONF SYH CON Variable range 0~3F 0~3F 0~3F 0~03 0~01 0~03 0~3F 0~01 0~3F 0~01 0~01 0~3F 0~3F 0~3F 0~03 0~01 0~03 0~3F 0~01 0~3F Setting value (Fixed) 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

(No.YA092)1-21

Item No. D021 D022 D023 D024 D025 D026 D027 D028 D029 D030 D031 D032 D033 D034 D035 D036 D037 D038 D039 D040 D041 D042 D043 D044 D045 D046 D047 D048 D049 D050 D051 D052 D053 D054 D055 D056 D057 D058 D059 D060 D061 D062 D063 D064 D065 D066 D067 D068 D069 D070 D071 D072 D073 D074 D075 D076 D077 D078 D079 D080

Item name SYH CONF SC CON SC CNONF SPM BLC SPM BLCO SLIM SLIMONF SCRG SRGONF S ONF pb GN pb Pf H pb Pf L pb CRG pb CRGON pb ONF pr GN pr Pf H pr Pf H pr CRG pr CRGON pr ONF ENH ONF (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY)

Variable range 0~01 0~3F 0~01 0~3F 0~01 0~3F 0~01 0~3F 0~01 0~01 0~3F 0~01 0~03 0~3F 0~01 0~01 0~3F 0~01 0~03 0~3F 0~01 0~01 0~01 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF

Setting value (Fixed) 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Item No. D081 D082 D083 D084 D085 D086 D087 D088 D089 D090 D091 D092 D093 D094 D095 D096 D097 D098 D099 D100 D101 D102 D103 D104 D105 D106 D107 D108 D109 D110 D111 D112 D113 D114 D115 D116 D117 D118 D119 D120 D121 D122 D123 D124 D125 D126 D127 D128 D129 D130 D131 D132 D133 D134 D135 D136 D137 D138 D139 D140

Item name (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY)

Variable range 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF

Setting value (Fixed) 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

1-22 (No.YA092)

Item No. D141 D142 D143 D144 D145 D146 D147 D148 D149 D150 D151 D152 D153 D154 D155 D156 D157 D158 D159 D160 D161 D162 D163 D164 D165 D166 D167 D168 D169 D170 D171 D172 D173 D174 D175 D176 D177 D178 D179 D180 D181 D182 D183 D184 D185 D186 D187

Item name (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) ENH ONF (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY) (NO DISPLAY)

Variable range 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF 0~FF

Setting value (Fixed) 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

SYSTEM SETTING (Do not adjust) Item Item name Variable range No. Z001 (NO DISPLAY) 0~0F Z002 (NO DISPLAY) 0~0F Z003 (NO DISPLAY) 0~0F Z004 (NO DISPLAY) 0~FF Z005 (NO DISPLAY) 0~FF Z006 (NO DISPLAY) 0~FF Z007 (NO DISPLAY) 0~FF Z008 (NO DISPLAY) 0~FF Z009 (NO DISPLAY) 0~FF Z010 (NO DISPLAY) 0~FF

Setting value (Fixed) 00 00 00 00 00 00 00 00 00 00

(No.YA092)1-23

4.5 ADJUSTMENT PROCEDURE Item LENS FOCUS adjustment Measuring instrument Hexagon wrench Test point Adjustment part [Focus knob] Focus Description (1) Press the [MENU] key on the remote controller. (2) Adjust the FOCUS with [Focus knob] so that the center screen may become the best focus. (3) Fix the focus lock screw by using the Hexagon wrench. · On this occasion, hold a [Focus knob] with your left hand. (4) Confirm the whole focus of the best screen.

Projection Lens

Focus knob Focus lock screw
CONVERGENCE Remote adjustment control [RGB BOX PATTERN] R. pattern (1) Set the [SLEEP TIMER] key to 0 min. (2) Press the [DISPLAY] key and the [VIDEO STATUS] key simultaneously. (3) Press the [9] key to enter the R G B box pattern. (4) Select the [R box pattern] by pressing the [DISPLAY] key. (5) At Horizontal RGB box pattern, top edge position is adjusted as same as G.(green) by pressing the [CH +] / the [CH -] key. (6) At vertical RGB box pattern, right edge position is adjusted as same as G.(green) green by pressing the [VOL -] / the [VOL +] key. (7) Select the [B box pattern] by pressing the [DISPLAY] key to same adjustments are done as (5) and (6). (8) Press the [MENU] key to return normal screen. Note · G.(green) box pattern : FIXED · Adjustment data : Memorized at once. · H. and V. position data : Reset by [SLEEP TIMER] key. · DISPLAY key : RBRGB····· · RGB pattern : Center position select.

(R)(G)(B)

(R) (G) (B)

Adjustment COLOR

[R]

R G B BOX PATTERN

[Remote controller key function]
INPUT 2

V2
INPUT 3

4 7
TUNE

5 8 0

6 9
RETURN+ TV

V3
INPUT 4

R G B BOX PATTERN DISPLAY : OSD ON/OFF select R B RGB CH + : R / B up position 1 pixel VOL +: R / B move to right side by 1 pixel BACK: Return to SERVICE MENU CH - : R / B Down position by 1 pixel

V4
DIGITAL-IN

THEATER PRO

VIDEO STATUS

D-IN

SLEEP TIMER R / B data reset / SERVICE MENU setting VOL - : R / B move to Left side by 1 pixel MENU (Return to normal MENU)

SLEEP TIMER DISPLAY
+

SOUND

LIGHT

MUTING

C.C.

CH VOL VOL

C.C.

OK CH

MENU VCR CHANNEL PREV NEXT

BACK VCR / DVD POWER TV / VCR

REW

PLAY

FF

REC

STOP

PAUSE

OPEN CLOSE

STILL PAUSE

1-24 (No.YA092)

Item CENTER POSITION adjustment

Measuring instrument Signal generator

Test point

Adjustment part [RGB BOX PATTERN] RGB. pattern

Description (1) Input the cross-circle signal pattern. (2) Set the [SLEEP TIMER] to 0 min. (3) Press the [DISPLAY] key and the [VIDEO STATUS] key simultaneously. (4) Press the [9] key. (5) Select the [RGB box pattern] by pressing the [DISPLAY] key. (6) By checking the cross-circle pattern of top and bottom edge, adjust reference lines to be same on top and bottom (A=B) by pressing the [CH + / CH -] key. (7) By checking the cross-circle pattern to left and right edge, adjust reference lines to be same on left and right (C=D) by pressing the [VOL - / VOL +] key. (8) Press the [MENU] key to return normal screen. Note · G.(green) box pattern : FIXED · Adjustment data : Memorized at once. · H. and V. position data : Reset by [SLEEP TIMER] key. · DISPLAY key : RBRGB·····. · RGB pattern : Center position select.

C
(R) (G) (B)

D

A
(R) (G) (B)

B
Indicated RGB.pattern [ RGB ]

R G B BOX PATTERN

[Remote controller key function]
INPUT 2

V2
INPUT 3

4 7
TUNE

5 8 0

6 9
RETURN+ TV

V3
INPUT 4

R G B BOX PATTERN DISPLAY : OSD ON/OFF select R B RGB CH + : R / B up position 1 pixel VOL +: R / B move to right side by 1 pixel BACK: Return to SERVICE MENU CH - : R / B Down position by 1 pixel

V4
DIGITAL-IN

THEATER PRO

VIDEO STATUS

D-IN

SLEEP TIMER R / B data reset / SERVICE MENU setting VOL - : R / B move to Left side by 1 pixel MENU (Return to normal MENU)

SLEEP TIMER DISPLAY
+

SOUND

LIGHT

MUTING

C.C.

CH VOL VOL

C.C.

OK CH

MENU VCR CHANNEL PREV NEXT

BACK VCR / DVD POWER TV / VCR

REW

PLAY

FF

REC

STOP

PAUSE

OPEN CLOSE

STILL PAUSE

(No.YA092)1-25

Item 525i A-D OFFSET adjustment

Measuring instrument Remote control unit Signal generator

Test point

Adjustment part [1. ADJUST] S001: PREPARE S008: 5i CB OF (525i Cb offset) S009: 5i CR OF (525i Cr offset) (1) (2) (3) (4) (5) (6)

Description Input a 525i Ramp pattern. (Component signal) Set to [STANDARD]. Set to [FULL]. Set to [LOW]. Select [1.ADJUST] from the SERVICE MENU. Adjust < S001 >(PREPARE) from 000 to 008, goes into the [525i input Cb offset] adjustment setting mode. Adjust < S008 > (525i Cb offset) and < S009 > (525i Cr offset) to sets to lose the gap (red line, green line and blue line) which appears at both ends of a white part at the center of the screen. Repeat from (6) and (7), then compleat 3 vertical line of L and R side best. Adjust < S001 > (PREPARE) from 000 to 008, it change to the normal mode. Press the [MUTING] key to save the value. Press the [MENU] key to return normal screen.

(7)

(8) (9) (10) (11)

Lose the gap (red line, green line and blue line) which appears at both ends.

1125i BRIGHTNESS adjustment

Remote control unit Signal generator

[1. ADJUST] S001:PREPARE S012:HD BL (1125i brightness) S030:R DRIVE (Red drive) S031:G DRIVE (Green drive) S032:B DRIVE (Blue drive)

Adjust the white area of 0% part largest.

(1) Input a 1125i Bright pattern. (Analog component signal) (2) Set to [STANDARD]. (3) Set to [FULL]. (4) Set to [LOW]. (5) Select [1.ADJUST] from the SERVICE MENU. (6) Adjust < S030 > (Red drive), < S031 > (Green drive) and < S032 > (Blue drive) to set the values [128]. (7) Adjust < S001 > (PREPARE) from 000 to 012, it goes to [A/D offset] adjustment mode from analog component signal. (8) Adjust < S012 > (HDBL) to set the 0% part in the upper half of the screen to be largest. (9) Adjust < S001 > (PREPARE) from 001 to 000, it change to the normal mode. (10) Press the [MUTING] key to save the value. (11) Press the [MENU] key to return normal screen.

1-26 (No.YA092)

Item 1125i A-D OFFSET adjustment

Measuring instrument Remote control unit Signal generator

Test point

Adjustment part [1. ADJUST] S001:PREPARE S013:HD CB OF (1125i Cb offset) S014:HD CR OF (1125i Cr offset) S030:R DRIVE (Red drive) S031:G DRIVE (Green drive) S032:B DRIVE (Blue drive)

Description (1) Input a 1125i 30% all-white pattern. (Analog component signal) (2) Set to [STANDARD]. (3) Set to [FULL]. (4) Set to [LOW]. (5) Select [1.ADJUST] from the SERVICE MENU. (6) Adjust < S030 > (Red drive), < S031 > (Green drive) and < S032 > (Blue drive) to set the values [128]. (7) Adjust < S001 > (PREPARE) from 000 to 013, it goes to [Cb offset] adjustment mode from analog component signal. (8) Adjust < S013 > (1125i Cb offset) to minimize the blue noise in the upper half of the screen. (9) Adjust < S014 > (1125i Cr offset) to minimize the red noise in the upper half of the screen (Fig.4). (10) Readjust < S013 > and < S014 > to set the upper half of the screen to be no color or lightest color. (11) repeat from (8) to (10) then adjust the adjustment screen lightest color. (12) Adjust < S001 > (PREPARE) from 001 to 000, it change to the normal mode. (13) Press the [MUTING] key to save the value. (14) Press the [MENU] key to return normal screen.

Minimize the red and blue noises in the upper half of the screen. (No color or lightest color)

SUB SCREEN A-D OFFSET adjustment

Remote control unit Signal generator

Video no signal.

(1) Receive a black and white pattern signal. (including 0% black signal) / Input a video no signal. (2) Set to [STANDARD]. S016:RT CB OF (3) Set to [FULL]. (Sub screen blue (4) Set to [LOW]. offset) (5) Set to [TWIN] screen mode. S017:RT CR OF (6) Input a video no signal on the left screen. (7) Receive a black and white signal on the right screen. (Sub screen red offset) (8) Select [1.ADJUST] from the SERVICE MENU. S030:R DRIVE (9) Adjust < S030 > (Red drive), < S031 > (Green drive) (Red drive) and < S032 > (Blue drive) to set the values [128]. S031:G DRIVE (10) Adjust < S001 > (PREPARE) from 000 to 013, it (Green drive) goes to [Sub-screen Cb offset] adjustment mode from analog component signal. S032:B DRIVE (11) Adjust < S016 > (Sub-screen Cb offset) to minimize (Blue drive) 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. (12) Adjust < S017 > (Sub-screen Cr offset) to minimize Set the 0% black part to be brightest. the red noise in the upper half of the screen. (13) Readjust < S016 > and < S017 > to set the upper half of the screen to be the blackest. (14) Adjust < S001 > (PREPARE) from 001 to 000, it change to the normal mode. (15) Press the [MUTING] key to save the value. (16) Press the [MENU] key to return normal screen.

[1. ADJUST] S001:PREPARE

(No.YA092)1-27

Item WHITE BALANCE (HIGH LIGHT)

Measuring instrument Remote control unit Signal generator

Test point

Adjustment part [1. ADJUST] S030:R DRIVE (Red drive) S031:G DRIVE (Green drive) S032:B DRIVE (Blue drive) (1) (2) (3) (4) (5) (6)

Description Receive a all-white (75% white) pattern signal. Set to [STANDARD]. Set to [FULL]. Set to [LOW]. Select [1.ADJUST] from the SERVICE MENU. Fix one of < S030 > (Red drive), < S031 > (Green drive) or < S032 > (Blue drive). Then, lower the other two that are not fixed so that the all-white screen is equally white throughout. Adjust one or more of < S030 > (R.DRIVE), < 031 > (G DRIVE) and < 032 > (B DRIVE) to set values [128].

(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 save the value. (9) Press the [MENU] key to return normal screen.

MTS CIRUT Item MTS INPUT LEVEL adjustment Measuring instrument Remote control unit Test point Adjustment part [1. ADJUST] T001:IN LEVEL (1) (2) (3) (4) (5) Description Select the [1.ADJUST] from the SERVICE MENU. Select the (IN LEVEL). Set the (IN LEVEL) to initial setting value. Press the [MUTING] key to save the value. Press the [MENU] key to return normal screen.

MTS SEPARATION adjustment

TV audio multiplex signal generator Oscilloscope Remote control unit

[1. ADJUST] T002: LOW SEP T003: HIGH SEP

L-Channel signal waveform

R-Channel crosstalk portion Minimum

(1) Input stereo L signal (300Hz) from the TV audio multiplex signal generator to the antenna terminal. (2) Connect an oscilloscope to L OUTPUT pin of the AUDIO OUT, and display one cycle portion of the 300Hz signal. (3) Change the connection of the oscilloscope to R OUTPUT pin of the AUDIO OUT, and enlarge the voltage axis. (4) Select (LOW SEP.). (5) Set the initial setting value of (LOW SEP.). (6) Adjust (LOW SEP.) so that the stroke element of the 300Hz signal will become minimum. (7) Change the signal to 3kHz, and similarly adjust (HIGH SEP.). (8) Press the [MUTING] key to save the value. (9) Press the [MENU] key to return normal screen.

1 cycle

1-28 (No.YA092)

SECTION 5 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. SELF-CHECK is performed when power is turned on, and information input to the main microcomputer is monitored at all time. SELF-CHECK is displayed in 2 ways via screen display and LED flashes. Failure detection is based on input state of I2C bus and the various control lines connected to the main microcomputer. 5.1.2 HOW TO ENTER THE SELF-CHECK DISPLAY 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) Press the [SLEEP TIMER] key and set it to 30 minutes. (2) Press the [VIDEO STATUS] key and [DISPLAY] key simultaneously, then enter the SERVICE MENU. (3) Press the [2] key (SELF-CHECK display mode) before the service mode screen disappears.

SERVICE MENU 1. ADJUST 2. SELF-CHECK 3. I2C STOP

Fig.1

< SELF-CHECK MODE >
LOB SYNC TIM MSM MEM YC TUN IP DVI OK M:OK OK OK OK OK OK OK OK FAN S:OK DIGI AVSW AIO GCR RGB HDMI OK HD:OK OK OK OK OK NG 2 OK

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 mode. To Clear (