JVC LTZ37EX6 Service Manual

YA462200610
SERVICE MANUAL
WIDE LCD TELEVISION
LT-Z37EX6, LT-Z37EX6/A, LT-Z37EX6
BASIC CHASSIS
FL3
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
COPYRIGHT © 2006 Victor Company of Japan, Limited
No.YA462
2006/10
SPECIFICATION
Items Contents
Dimensions ( W × H × D ) 91.9 cm × 55.2 cm × 31.1 cm [Included stand]
91.9 cm × 60.4 cm × 12.8 cm [TV only]
Mass 21.0 kg [Included stand]
18.4 kg [TV only]
Power Input AC110V - AC240 V, 50 Hz / 60 Hz
Power Consumption 163 W (Standby:0.5 W)
TV RF System B, G, I, D, K, K1, M
Colour System PAL / SECAM / NTSC 3.58 / NTSC 4.43
Stereo System A2 (B/G, D/K), NICAM (B/G, I, D/K)
Teletext System FLOF (Fastext), WST (World Standard System)
Receiving Frequency
Intermediate Frequency VIF
Colour Sub Carrier
LCD panel 37V-inch wide aspect (16 : 9)
Screen Size Diagonal : 94.0 cm (H: 82.0 cm × V:46.1 cm) Display Pixels Horizontal : 1366 dots × Vertical : 768 dots (W-XGA)
Audio Power Output 10 W + 10 W
Speaker (16.0 cm × 4.0 cm) oblique × 2 Aerial terminal (VHF/UHF) 75 unbalanced, coaxial
Video / Audio Input-1/2/3
Video / Audio Output S-Video
HDMI Input Video
PC (RGB) Input D-sub 15 pin × 1
Headphone 3.5 mm stereo mini jack × 1 Remote Control Unit RM-C1835 (UM-3/AA/R6 dry cell battery × 2)
Component Video
625p / 525p / 625i / 525i
VHF Low
VHF High
SECAM
[Input-1/3]
750p / 1125i
S-Video
[Input-1/2]
Design & specifications are subject to change without notice.
46.25MHz - 140.25MHz
147.25MHz - 423.25MHz
431.25MHz - 863.25MHz
UHF
Mid (X - Z+2, S1 - S10) / Super (S11 - S20) / Hyper (S21 - S41) bands
CATV
38.0MHz (B, G, I, D, K, L)
SIF
32.26MHz (5.74MHz: B), 32.15MHz (5.85MHz: G), 31.45MHz (6.55MHz: I)
31.75MHz (6.25MHz: D), 32.15MHz (5.85MHz: K)
4.43MHz
PAL
4.40625MHz / 4.25MHz
3.58MHz / 4.43MHz
NTSC
RCA pin jack × 3 (Input-3) Y : 1V (p-p) (Sync signal: ±0.35V(p-p), 3-value sync.), 75 Pb/Pr : ±0.35V(p-p), 75 Y : 1V (p-p), Positive (Negative sync provided), 75 Pb/Pr : 0.7V(p-p), 75 Mini-DIN 4 pin connector × 2 Y: 1V (p-p), Positive (Negative sync provided), 75 C: 0.286V (p-p) (Burst signal), 75 1V (p-p), Positive (Negative sync provided), 75 , RCA pin jack × 3
Video
500mV (rms), High impedance, RCA pin jack × 6
Audio
Mini-DIN 4 pin connector × 1 Y: 1V (p-p), Positive (Negative sync provided), 75 C: 0.286V (p-p) (Burst signal), 75 1V (p-p), Positive (Negative sync provided), 75 , RCA pin jack × 1
Video
500mV (rms), Low impedance, RCA pin jack × 2
Audio
HDMI connector × 1
(Digital-input terminal is not compatible with picture signals of computer signal)
Digital: HDMI connector × 1
Audio
Analog: 500mV(rms) (-4dBs), high impedance, RCA pin jack × 2
R/G/B : 0.7 V (p-p), 75
HD / VD : 1 V (p-p) to 5 V (p-p), high impedance < Available signal >
VGA : 640 pixels × 480 pixels (Horizontal : 31.5 kHz / Vertical : 60 Hz) XGA : 1024 pixels × 768 pixels (Horizontal : 48.4 kHz / Vertical : 60 Hz)
1-2 (No.YA462)
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) Don't short between the LIVE side ground and
ISOLATED (NEUTRAL) side ground or EARTH side ground when repairing.
Some model's power circuit is partly different in the GND. The difference of the GND is shown by the LIVE : ( ) side GND, the ISOLATED (NEUTRAL) : ( ) side GND and EARTH : ( ) side GND. Don't short between the LIVE side GND and ISOLATED (NEUTRAL) side GND or EARTH side GND and never measure the LIVE side GND and ISOLATED (NEUTRAL) side GND or EARTH side GND at the same time with a measuring apparatus (oscilloscope etc.). If above note will not be kept, a fuse or any parts will be broken.
(5) 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.
(6) Isolation Check (Safety for Electrical Shock Hazard)
After re-assembling the product, always perform an isolation check on the exposed metal parts of the cabinet (antenna terminals, video/audio input and output terminals, Control knobs, metal cabinet, screw heads, earphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.
a) Dielectric Strength Test
The isolation between the AC primary circuit and all metal parts exposed to the user, particularly any exposed metal part having a return path to the chassis should withstand a voltage of 3000V AC (r.m.s.) for a period of one second. (. . . . Withstand a voltage of 1100V AC (r.m.s.) to an appliance rated up to 120V, and 3000V AC (r.m.s.) to an appliance rated 200V or more, for a period of one second.) This method of test requires a test equipment not generally found in the service trade.
b) Leakage Current Check
Plug the AC line cord directly into the AC outlet (do not use a line isolation transformer during this check.). Using a "Leakage Current Tester", measure the leakage current from each exposed metal part of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground (water pipe, etc.). Any leakage current must not exceed 0.5mA AC (r.m.s.). However, in tropical area, this must not exceed 0.2mA AC (r.m.s.).
Alternate Check Method
Plug the AC line cord directly into the AC outlet (do not use a line isolation transformer during this check.). Use
an AC voltmeter having 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
GOOD EARTH GROUND
1500 10W
PLACE THIS PROBE ON EACH EXPOSED ME TAL PAR T
(No.YA462)1-3
1.2 INSTALLATION
1.2.1 HEAT DISSIPATION
If the heat dissipation vent behind this unit is blocked, cooling efficiency may deteriorate and temperature inside the unit will rise. The temperature sensor that protects the unit will be activated when internal temperature exceeds the pre-determined level and power will be turned off automatically.Therefore, please make sure pay attention not to block the heat dissipation vent as well as the ventilation outlet behind the unit and ensure that there is room for ventilation around it.
Ventilation hole
1.2.3 INSTALLATION REQUIREMENTS
To ensure safety in an emergency such as an earthquake, and to prevent accidents, ensure that measures are taken to prevent the TV dropping or falling over. Tie commercially available tough cord(s) to the hooks in the back of the TV, and fix the TV to solid walls or columns.
< FRONT VIEW >
WALL
*Diagram differs from actual appearance.
1.2.2 INSTALLATION REQUIREMENTS
Ensure that the minimal distance is maintained, as specified below, between the unit with and the surrounding walls, as well as the floor etc.Install the unit on stable flooring or stands.Take precautionary measures to prevent the unit from tipping in order to protect against accidents and earthquakes.
HOOK
HOOK
*Diagram differs from actual appearance.
< SIDE VIEW >
It fixes in a band.
TV STAND
*Diagram differs from actual appearance.
200mm
*Diagram differs from actual appearance.
50mm150mm 150mm 50mm
1-4 (No.YA462)
1.2.4 NOTES ON HANDLING
(1) WHEN TAKING UNIT OUT OF A PACKING CASE
When taking the unit out of a packing case, do not grasp the upper part of the unit. If you take the unit out while grasping the upper part, the LCD PANEL may be damaged because of a pressure. Instead of grasping the upper part, put your hands on the lower backside or sides of the unit.
(2) AS FOR PRESSING OR TOUCHING A SPEAKER
Be careful not to press the opening of the speaker in the lower part of the unit and around them since the decorative sheet on the surface of the openings may be deformed.
1.3 HANDLING LCD PANEL
1.3.1 PRECAUTIONS FOR TRANSPORTATION
When transporting the unit, pressure exerted on the internal LCD panel due to improper handling (such as tossing and dropping) may cause damages even when the unit is carefully packed. To prevent accidents from occurring during transportation, pay careful attention before delivery, such as through explaining the handling instructions to transporters. Ensure that the following requirements are met during transportation, as the LCD panel of this unit is made of glass and therefore fragile:
(1) USE A SPECIAL PACKING CASE FOR THE LCD PANEL
When transporting the LCD panel of the unit, use a special packing case (packing materials). A special packing case is used when a LCD panel is supplied as a service spare part.
(2) ATTACH PROTECTION SHEET TO THE FRONT
Since the front (display part) of the panel is vulnerable, attach the protection sheet to the front of the LCD panel before transportation. Protection sheet is used when a LCD panel is supplied as a service spare part.
(3) AVOID VIBRATIONS AND IMPACTS
The unit may be broken if it is toppled sideways even when properly packed. Continuous vibration may shift the gap of the panel, and the unit may not be able to display images properly. Ensure that the unit is carried by at least 2 persons and pay careful attention not to exert any vibration or impact on it.
(4) DO NOT PLACE EQUIPMENT HORIZONTALLY
Ensure that it is placed upright and not horizontally during transportation and storage as the LCD panel is very vulnerable to lateral impacts and may break. During transportation, ensure that the unit is loaded along the traveling direction of the vehicle, and avoid stacking them on one another. For storage, ensure that they are stacked in 2 layers or less even when placed upright.
1.3.2 OPTICAL FILTER (ON THE FRONT OF THE LCD PANEL)
(1) Avoid placing the unit under direct sunlight over a
prolonged period of time. This may cause the optical filter to deteriorate in quality and COLOUR.
(2) Clean the filter surface by wiping it softly and lightly with a
soft and lightly fuzz cloth (such as outing flannel).
(3) Do not use solvents such as benzene or thinner to wipe the
filter surface. This may cause the filter to deteriorate in quality or the coating on the surface to come off. When cleaning the filter, usually use the neutral detergent diluted with water. When cleaning the dirty filter, use water-diluted ethanol.
(4) Since the filter surface is fragile, do not scratch or hit it with
hard materials. Be careful enough not to touch the front surface, especially when taking the unit out of the packing case or during transportation.
1.3.3 PRECAUTIONS FOR REPLACEMENT OF EXTERIOR PARTS
Take note of the following when replacing exterior parts (REAR COVER, FRONT PANEL, etc.):
(1) Do not exert pressure on the front of the LCD panel (filter
surface). It may cause irregular COLOUR.
(2) Pay careful attention not to scratch or stain the front of the
LCD panel (filter surface) with hands.
(3) When replacing exterior parts, the front (LCD panel) should
be placed facing downward. Place a mat, etc. underneath to avoid causing scratches to the front (filter surface).
(No.YA462)1-5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 SYSTEM SETTEING
Be sure to carry out the following operation at the end of the procedure.
• The remote control unit (with LC display) [LP20873-009] will be required for this operation.
• The required input code is "0FF0". (1) Take out the batteries from the remote control unit if the
batteries are inserted.
(2) Insert the batteries while pressing and holding [4], [5] and
[6] keys simultaneously.
(3) While viewing the LC display of the remote control unit,
set the value to "0" using the [START DEBUT +] / [START DEBUT -] keys.
(4) In the same manner, set the value to "F" using the
[STOP FIN +] / [STOP FIN -] keys.
(5) In the same manner, set the value to "F" using the [DATE +]
/ [DATE -] keys.
(6) In the same manner, set the value to "0" using the [PR +] /
[PR -] keys.
(7) When completed with all of the above settings, press the
[Transmission] key.
NOTE:
Please order to your parts center if you do not have this remote control unit.
Parts number: LP20873-009A (Remote control unit for VCR)
2.3 MAIN DIFFERENCE LIST
2.2 FEATURES
D.I.S.T. (Digital Image Scaling Technology)
This system uses line interpolation to double the number of scanning lines and achieve high resolution, flicker-free picture.
Colour Management
This function ensures dull colours are compensated to produce natural hues.
Picture Management
This function makes it easier to see the dark areas when a picture has many dark areas, and makes it easier to see the bright areas when a picture has many bright areas.
Smart Picture
This function detects the APL (Average Picture Level) and adjusts the contrast suitable for what you are watching.
DIGITAL VNR
This function cuts down the amount of noise in the original picture.
MPEG Noise Reduction
This function effects the block noise removal and mosquito NR simultaneously.
Item LT-Z37EX6 LT-Z37EX6/A LT-Z37EX6/S LT-Z37EX6/B
POWER CORD EU Type (2 Pins) AU Type (2 Pins) UK Type (3 Pins) Flat type (2 Pins)
ANALOG PWB SFL-1233A-H2 ←←SFL-1233A-BK D-AMP PWB SFL-6232A-H2 ←←SFL-6232A-BK SW PWB SFL-7211A-H2 ←←SFL-7211A-BK LED PWB SFL-8906A-H2 ←←SFL-8906A-BK POWER PWB SFL-9067A-H2 ←←SFL-9067A-BK DC-DC PWB SFL-9177A-H2 ←←SFL-9177A-BK DIGITAL PWB SFL0D361A-H2 SFL0D364A-H2 SFL0D361A-BK
1-6 (No.YA462)
2.4 TECHNICAL INFORMATION
2.4.1 LCD PANEL
This unit uses the flat type panel LCD (Liquid Crystal Display) panel that occupies as little space as possible, instead of the conventional CRT (Cathode Ray Tube), as a display unit. Since the unit has the two polarizing filter that are at right angles to each other, the unit adopts "normally black" mode, where light does not pass through the polarizing filter and the screen is black when no voltage is applied to the liquid crystals.
2.4.1.1 SPECIFICATIONS
The following table shows the specifications of this unit.
Item Specifications
Maximum dimensions ( W × H × D )
Weight 10.3 kg
Effective screen size Diagonal: 94.0 cm (H: 82.0 cm × V: 46.1 cm)
Aspect ratio 16 : 9
Drive device / system a-Si-TFT active matrix system
Resolution Horizontally 1366 × Vertically 768 × RGB < W-XGA > 3147264 dots in total
Pixel pitch (pixel size) Horizontally: 0.6 mm, Vertically: 0.6 mm
Displayed colour 16777216 colours 256 colours for R G and B
Brightness 500cd/m2
Contrast ratio 1000 : 1
Response time (Tr) less than 8 ms
View angle (Horizontally) 178° View angle (Vertically) 178°
Surface polarizer Anti-Glare type Low reflective coat
Colour filter Vertical stripe
Backlight Direct-type Cold cathode fluorescent lamp
Power supply voltage in LCD 12 V
Power supply voltage in inverter
Panel interface system LVDS (Low Voltage Differential Signaling)
87.7 cm × 51.5 cm × 5.5 cm
24 V
2.4.1.2 PIXEL FAULT
There are three pixel faults - bright fault , dark fault and flicker fault - that are respectively defined as follows.
BRIGHT FAULT
In this pixel fault, a cell that should not light originally is lighting on and off. For checking this pixel fault, input ALL BLACK SCREEN and find out the cell that is lighting on and off.
DARK FAULT
In this pixel fault, a cell that should light originally is not lighting or lighting with the brightness twice as brighter as originally lighting. For checking this pixel fault, input 100% of each R/G/B colour and find out the cell that is not lighting.
FLICKER FAULT
In the pixel fault, a cell that should light originally or not light originally is flashing on and off. For checking this pixel fault, input ALL BLACK SCREEN signal or 100% of each RGB colour and find out the cell that is flashing on and off.
(No.YA462)1-7
2.4.2 MAIN CPU PIN FUNCTION [IC7301
Pin Pin name I/O Function Pin Pin name I/O Function
1 TCK O Test purpose 65 D2 I/O Program ROM data for main CPU 2 TMS I Test purpose 66 D12 I/O Program ROM data for main CPU 3 TDI I Test purpose 67 D10 I/O Program ROM data for main CPU 4 TDO O Test purpose 68 VSS33 - GND 5 P2.8 O TV, Subtitle/OTHER 69 VDD33 I 3.3V 6 P2.9 O Blue for OSD 70 D4 I/O Program ROM data for main CPU 7 P2.10 O Blue for OSD 71 D3 I/O Program ROM data for main CPU 8 P2.11 O Blue for OSD 72 D11 I/O Program ROM data for main CPU
9 P2.12 O Blue for OSD 73 RSTIN I Reset 10 P2.13 O Blue for OSD 74 POWER O Sleep state release for chassis CPU [Relese : L] 11 P2.14 I Not used 75 P3.1 O DM_RESET(IDTV) 12 P2.15 O Request for chassis CPU communication 76 REMOCON I Remote control 13 VSS33 - GND 77 P3.3 I Clock for OSD 14 VDD33 I 3.3V 78 P3.4 O Red for OSD 15 P4.5 O Not used 79 P3.5 O Red for OSD 16 A20 O Program ROM address for main CPU 80 P3.6 O Red for OSD 17 A19 O Program ROM address for main CPU 81 P3.7 O Red for OSD 18 A18 O Program ROM address for main CPU 82 MTST I/O Data transmission for chassis CPU communication 19 A17 O Program ROM address for main CPU 83 MTSR I/O Data receive for chassis CPU communication 20 VSS25 - GND 84 VSS33 - GND 21 VDD25 I 2.5V 85 VDD33 I 3.3V 22 A16 O Program ROM address for main CPU 86 VSS25 - GND 23 A8 O Program ROM address for main CPU 87 VDD25 I 2.5V 24 A7 O Program ROM address for main CPU 88 TXD0 I/O Communication for adjustment 25 A9 O Program ROM address for main CPU 89 RXD0 I/O Communication for adjustment 26 A6 O Program ROM address for main CPU 90 P3.12 O Red for OSD 27 A5 O Program ROM address for main CPU 91 CLK O Clock for chassis CPU communication 28 A10 O Program ROM address for main CPU 92 P3.15 O Green for OSD 29 A11 O Program ROM address for main CPU 93 P5.14 O Green for OSD 30 A12 O Program ROM address for main CPU 94 P5.15 O Green for OSD 31 VSS33 - GND 95 TRIG_IN O Green for OSD 32 VDD33 I 3.3V 96 TRIG_OUT O Green for OSD 33 A4 O Program ROM address for main CPU 97 P6.2 O Green for OSD 34 A3 O Program ROM address for main CPU 98 P6.3 I/O I 35 A2 O Program ROM address for main CPU 99 P6.4 I/O I 36 A1 O Program ROM address for main CPU 100 P6.5 O Teletext signal select [Analog RGB : H / Digital RGB : L] 37 A0 O Program ROM address for main CPU 101 IRQ O IRQ(IDTV) 38 A13 O Program ROM address for main CPU 102 VSYNC I/O Vertical sync 39 ARAS/A14 O Program ROM address for main CPU 103 HSYNC I/O Horizontal sync 40 CAS/A15 O Program ROM address for main CPU 104 41 VSS33 - GND 105 BLANK O Ys for OSD / Teletext 42 VDD33 I 3.3V 106 VDD33 I 3.3V 43 MEMCLK O Clock for memory 107 VSS33 - GND 44 CSSDRAM O Chip select for memory 108 XTAL1 I 6MHz for system clock 45 CLKEN O Clock enable for memory 109 XTAL2 O 6MHz for system clock 46 CSROM O Chip select for memory 110 VSSA - GND 47 RD O Read for memory 111 VDDA I 2.5V 48 UDQM O Control buffer of memory 112 R O R for OSD / Teletext 49 LDQM O Control buffer of memory 113 G O G for OSD / Teletext 50 WR O Write for memory 114 B O B for OSD / Teletext 51 D15 I/O Program ROM data for main CPU 115 VSSA - GND 52 VSS33 - GND 116 VDDA I 2.5V 53 VDD33 I 3.3V 117 CVBS2 I Video for Teletext 54 D7 I/O Program ROM data for main CPU 118 VSSA - GND 55 D0 I/O Program ROM data for main CPU 119 VDDA I 2.5V 56 D14 I/O Program ROM data for main CPU 120 CVBS1B I Video for Teletext 57 D8 I/O Program ROM data for main CPU 121 CVBS1A I Video for Teletext 58 D6 I/O Program ROM data for main CPU 122 VSSA - GND 59 D1 I/O Program ROM data for main CPU 123 VDDA I 2.5V 60 VSS33 - GND 124 KEY1 I Key scan data 1 [ON : H] 61 VDD33 I 3.3V 125 KEY2 I Key scan data 2 [ON : H] 62 D13 I/O Program ROM data for main CPU 126 MECA_SW I Main power ON / OFF control [ON : L] 63 D9 I/O Program ROM data for main CPU 127 64 D5 I/O Program ROM data for main CPU 128 TMODE I Test purpose
: DIGITAL PWB]
COR/RSTOUT
(KEYP2)P5.3
2
C bus clock (for main memory)
2
C bus Data (for main memory)
O Not used
I Not used
1-8 (No.YA462)
SECTION 3
DISASSEMBLY
3.1 DISASSEMBLY PROCEDURE
CAUTION AT DISASSEMBLY:
Be sure to perform the SYSTEM SETTEING, at the end of the procedure.
• Make sure that the power cord is disconnected from the outlet.
• Pay special attention not to break or damage the parts.
• When removing each board, remove the connectors as required. Taking notes of the connecting points (connector numbers) makes service procedure manageable.
• Make sure that there is no bent or stain on the connectors before inserting, and firmly insert the connectors.
3.1.1 REMOVING THE STAND (Fig.1)
(1) Remove the 2 screws [A]. (2) Remove the STAND COVER. (3) Remove the 4 screws [B]. (4) Remove the STAND.
3.1.2 REMOVING THE REAR COVER (Fig.1)
• Remove the STAND. (1) Remove the JACK COVER (L/R). (2) Remove the 10 screws [C], the 5 screws [D], and the 2
screws [E].
(3) Remove the REAR COVER.
3.1.3 REMOVING THE POWER PWB (Fig.1)
• Remove the STAND.
• Remove the REAR COVER. (1) Remove the 1 screw [F]. (2) Remove the POWER CORD HOLDER. (3) Remove the POWER CORD. (4) Remove the 4 screws [G]. (5) Remove the POWER PWB.
3.1.4 REMOVING THE D-AMP PWB (Fig.1)
• Remove the STAND.
• Remove the REAR COVER. (1) Remove the 2 screw [H] and 1 hook [a]. (2) Remove the D-AMP PWB.
3.1.6 REMOVING THE DC-DC PWB (Fig.1)
• Remove the STAND.
• Remove the REAR COVER. (1) Remove the 4 screws [Q]. (2) Remove the BACK BRACKET. (3) Remove the 2 screws [R]. (4) Remove the DC-DC PWB.
3.1.7 REMOVING THE DIGITAL PWB (Fig.1)
• Remove the STAND.
• Remove the REAR COVER.
• Remove the BACK BRACKET.
• Remove the 7 hooks [b] of the SHIELD COVER. (1) Remove the SHIELD COVER by sliding it in the direction of
the arrow. (2) Remove the 1 screw [S] and 2 screws [T]. (3) Remove the SHIELD TERMINAL. (4) Remove the 9 screws [U]. (5) Remove the DIGITAL PWB.
CAUTION :
Make sure to perform the "SYSTEM SETTEING", when DIGITAL PWB is replaced.
3.1.5 REMOVING THE ANALOG PWB (Fig.1)
• Remove the STAND.
• Remove the REAR COVER.
• Remove the D-AMP PWB. (1) Remove the 3 screws [J] and 2 screws [K]. (2) Remove the TERMINAL BASE. (3) Remove the 1 screw [L]. (4) Remove the TUNER BASE. (5) Remove the 2 screws [M]. (6) Remove the D-AMP BRACKET. (7) Remove the 3 screws [N] and 2 screws [P]. (8) Remove the ANALOG PWB.
(No.YA462)1-9
JACK COVER
STNAD COVER
A
E
D
STAND
B
REAR COVER
SHIELD COVER
b
BACK BRACKET
Q
b
H
D-AMP PWB
U
DIGITAL PWB
SHIELD COVER
SHIELD TERMINAL
M
D-AMP PWB BRACKET
a
ANALOG PWB
N
TERMINAL BASE
TUNER BASE
K
J
P
SHIELD BASE
L
R
R
DC-DC PWB
T
SHIELD TERMINAL
S
POWER PWB
FRONT
POWER CORD HOLDER
POWER CORD
F
G
1-10 (No.YA462)
Fig.1
3.1.8 REMOVING THE SW PWB (Fig.2)
• Remove the STAND.
• Remove the REAR COVER. (1) Remove the 2 screws [A]. (2) Remove the CONTROL ASS’Y with SW PWB. (3) Remove the 2 screws [B]. (4) Remove the SW PWB from the CONTROL ASS’Y.
3.1.9 REMOVING THE LED PWB (Fig.2)
• Remove the STAND.
• Remove the REAR COVER. (1) Remove the 1 screw [C]. (2) Remove the LED PWB.
3.1.10 REMOVING THE SPEAKER (Fig.2)
• Remove the STAND.
• Remove the REAR COVER. (1) Remove the 4 screws [D]. (2) Remove the SPEAKER (L /R).
3.1.11 REMOVING THE LCD PANEL UNIT (Fig.2)
• Remove the STAND.
• Remove the REAR COVER.
• Remove the BACK BRACKET.
• Remove the POWER CORD HOLDER. (1) Remove the 2 screws [E] and 3 screws [F]. (2) Remove the STAND BRACKET. (3) Remove the 3 screws [G]. (4) Remove the MAIN BASE. (5) Remove the 4 screws [H]. (6) Remove the SUPPORT BRACKET. (7) Remove the 3 screws [J] and 2 screw [K]. (8) Remove the LCD PANEL UNIT with TOP/BOTTOM
FRAME.
(9) Remove the 2 screws [L].
(10) Remove the TOP FARAME from the LCD PANEL UNIT. (11) Remove the 2 screws [M]. (12) Remove the BOTTOM FARAME from the LCD PANEL UNIT.
SUPPORT BRACKET
D
SPEAKER
LCD PANEL UNIT
MAIN BASE
G
G
STAND
F
BRACKET
E
G
D
The terminal of a connector is turned up and connects.
H
TOP FRAME
L
L
SPEAKER
SUPPORT BRACKET
J
Surely insert and lock.
H
Check that connector is inserted completly. (Don't insert aslant)
"LVDS CABLE"
white
white
LCD PANEL SIDE
Black
terminal side
Black
DIGITAL PWB SIDE
M
J
A
CONTROL
SW PWB
ASS'Y
BOTTOM FRAME
B
C
FRONT PANEL
A
LED PWB
FRONT
Fig.2
(No.YA462)1-11
3.2 MEMORY IC REPLACEMENT
SERVICE MENU
1. ADJUST
2. SELF CHECK
3. I2C STOP
S001 R DRIVE 137 PAL50 FULL STD H
• This model uses the memory IC.
• This memory IC stores data for proper operation of the video and drive circuits.
• When replacing, be sure to use an IC containing this (initial value) data.
3.2.1 MEMORY IC TABLE
Simbol Number of pins Mounting PWB Main content of data
IC7201
IC7602
48-pin DIGITAL PWB Program(Video process) of IC6001(System CPU) is memorized.
8-pin DIGITAL PWB Setting value of IC7301(MAIN CPU) is memorized.
3.2.2 MEMORY IC REPLACEMENT PROCEDURE
1. Power off
Switch off the power and disconnect the power plug from the AC outlet.
2. Replace the memory IC
Be sure to use the memory IC written with the initial setting values.
3. Power on
Connect the power plug to the AC outlet and switch on the power.
4. Receiving channel setting
Refer to the OPERATING INSTRUCTIONS and set the receive channels (Channels Preset) as described.
5. User setting
Check the user setting items according to the given in page later. Where these do not agree, refer to the OPERATING INSTRUCTIONS and set the items as described.
6. SERVICE MODE setting
Verify what to set in the SERVICE MODE, and set whatever is necessary (Fig.1). Refer to the SERVICE ADJUSTMENT for setting.
3.2.3 SERVICE MODE SETTING
SERVICE MODE SCREEN
MAIN MENU SCREEN
SERVICE MENU
1. ADJUST
2. SELF CHECK
3. I2C STOP
ADJUSTMENT MODE SCREEN
S001 R DRIVE 137 PAL50 FULL STD H
SETTING ITEM
Setting items Settings Item No.
Video system setting Adjust S001 - S009
Audio system setting Adjust T001 - T003
Main CPU system setting Fixed M001 - M224
Drive system setting Fixed F001 - F002
(Not used) Fixed D001
(Not used) Fixed Z001
1-12 (No.YA462)
Fig.1
3.2.4 SETTINGS OF FACTORY SHIPMENT
3.2.4.1 BUTTON OPERATION 3.2.4.2 REMOTE CONTROL DIRECT OPERATION
Setting item Setting position
POWER Off
CHANNEL PR01
VOLUME 10
TV/AV TV
3.2.4.3 REMOTE CONTROL MENU OPERATION
(1) PICTURE
Setting item Setting position
Picture Mode Bright
White Balance Cool
Features
Super DigiPure Auto
Pull Down Auto
Colour Management On
Picture Management On
Smart Picture Off
MPEG Noise Reduction On
Colour System Main Depends on PR
Sub Auto
4:3 Zoom Panoramic
(2) SOUND
Setting item Setting position
Stereo / I•II Stereo Sound
Bass Centre
Treble Centre
Balance Centre
Cinema Surround Off
Tone Correction On
CHANNEL PR01
VOLUME 10
ZOOM Panoramic
(3) FEATURES
Sleep Timer Off
Channel Guard Off
Appearance Type A
Blue Back On
Child Lock Off
Auto Shutoff Off
Favourite Setting Blank
Power Lamp On
(4) SET UP
Auto Program Tv Channel Automatically Set
Edit/Manual Preset Ch Only
Language English
Video-1 Setting Component
Video-3 Setting Component
AI Volume On
Teletext Language Group-1
HDMI Auto
PC Position Centre
Setting item Setting position
Setting item Setting position
Setting item Setting position
(No.YA462)1-13
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
2. How to install Chip parts
[Resistors, capacitors, etc.]
(1) As shown in the figure, push the part with tweezers and
alternately melt the solder at each end.
(2) Shift with the tweezers and remove the chip part.
[Transistors, diodes, variable resistors, etc.]
(1) Apply extra solder to each lead.
SOLDER
SOLDER
[Resistors, capacitors, etc.]
(1) Apply solder to the pattern as indicated in the figure.
(2) Grasp the chip part with tweezers and place it on the
solder. Then heat and melt the solder at both ends of the chip part.
[Transistors, diodes, variable resistors, etc.]
(1) Apply solder to the pattern as indicated in the figure. (2) Grasp the chip part with tweezers and place it on the
solder.
(3) First solder lead A as indicated in the figure.
(2) As shown in the figure, push the part with tweezers and
alternately melt the solder at each lead. Shift and remove the chip part.
NOTE :
After removing the part, remove remaining solder from the pattern.
1-14 (No.YA462)
A
B
C
(4) Then solder leads B and C.
A
B
C
SECTION 4
SERVICE MENU
1. ADJUST
2. SELF CHECK
3. I2C STOP
ADJUSTMENT
4.1 ADJUSTMENT PREPARATION
(1) There are 2 ways of adjusting this TV : One is with the
REMOTE CONTROL UNIT and the other is the conventional method using adjustment parts and components.
(2) The adjustment using the REMOTE CONTROL UNIT is
made on the basis of the initial setting values. The setting values which adjust the screen to the optimum condition can be different from the initial setting values.
(3) Make sure that connection is correctly made AC to AC
power source.
(4) Turn on the power of the TV and measuring instruments for
warming up for at least 30 minutes before starting adjustments.
(5) If the receive or input signal is not specified, use the most
appropriate signal for adjustment.
(6) Never touch the parts (such as variable resistors,
transformers and condensers) not shown in the adjustment items of this service adjustment.
4.2 PRESET SETTING BEFORE ADJUSTMENTS
Unless otherwise specified in the adjustment items, preset the following functions with the REMOTE CONTROL UNIT.
Setting item Settings position
Picture Mode Standard
Picture Adjustments Centre
White Balance Mid
Super Digipure Auto
Pull Down Auto
Colour Management On
Picture Management On
Zoom Full
4.3 MEASURING INSTRUMENT AND FIXTURES
• Signal generator (Pattern generator) [PAL]
• Remote control unit
4.5 BASIC OPERATION OF SERVICE MODE
4.5.1 HOW TO ENTER THE SERVICE MODE
(1) Press [DISPLAY] key and [MUTING] key on the remote
control unit simultaneously to enter the SERVICE MODE SCREEN.
(2) In the SERVICE MENU, press the [1] key to display
ADJUSTMENT MODE SCREEN.
SERVICE MENU SCREEN
SERVICE MENU
1. ADJUST
2. SELF CHECK
3. I2C STOP
NOTE:
• Before enter the SERVICE MODE, press the [MODE] key to
confirm that "TV" position is indicated. If it is in a wrong position, the SERVICE MODE operation cannot be performed.
• When a number key other than the [1] key is pressed in the
SERVICE MODE SCREEN, the other relevant screen may be displayed. This is not used in the adjustment procedure. Press the
[MENU] key to return to the SERVICE MODE SCREEN.
4.5.2 HOW TO EXIT THE SERVICE MODE
Press the [MENU] key to exit the Service mode.
4.5.3 SERVICE MODE SELECT KEY LOCATION
MUTING
VCR/TV/DVD
NUMBER
switch
4.4 ADJUSTMENT ITEMS
VIDEO CIRCUIT
• WHITE BALANCE (HIGH LIGHT) adjustment
ZOOM
FUNCTION /
OK
DISPLAY
CH +/-
CINEMA
MENU
FUNCTION / BACK
VOL +/-
(No.YA462)1-15
4.5.4 ADJUSTMENT MODE
S001 R DRIVE 137 PAL50 FULL STD H
This mode is used to adjust the VIDEO CIRCUIT and the MTS CIRCUIT.
4.5.4.1 HOW TO ENTER THE ADJUSTMENT MODE When the SERVICE MENU SCREEN of SERVICE MODE is displayed, press [1] key to enter the ADJUSTMENT MODE.
4.5.5 DESCRIPTION OF STATUS DISPLAY
(3) PICTURE MODE
SOFT : SOFT
ADJUSTMENT MODE
STD : STANDARD BRI : BRIGHT
SETTING ITEM No.
SETTING ITEM
SETTING VALUE (DATA)
(4) WHITE BALANCE
H: COOL M: MID
S001 R DRIVE 137 PAL50 FULL STD H
L: WARM
(5) SETTING ITEM NAME
Setting item name are displayed. For the setting item names to be displayed, refer to "INITIAL SETTING VALUES IN THE SERVICE MODE".
SIGNAL SYSTEM
ZOOM MODE
PICTURE MODE
WHITE BALANCE
(1) SIGNAL SYSTEM
The signal displayed on the screen is displayed.
PAL50 : PAL50Hz (Composite / S-video) PAL60 : PAL60Hz (Composite / S-video) SECAM : SECAM NTSC3 : NTSC3.58 NTSC4 : NTSC4.43 525I : 525i (Component) 525P : 525p 625I : 625i (Component) 625P : 625p 750P : 750p 1125I5 : 1125i 50Hz 1125I6 : 1125i 60Hz RGB5 : RGB 525i RGB6 : RGB 625i PCVGA : PC (VGA) PCXGA : PC (XGA) H525I : HDMI 525i H525P : HDMI 525p H625I : HDMI 625i H625P : HDMI 625p H750P : HDMI 750p H125I5 : HDMI 1125i 50Hz H125I6 : HDMI 1125i 60Hz
--- : OTHER
(2) ZOOM MODE
State of the SCREEN SIZE or MULTI PICTURE is displayed.
SINGLE SCREEN
FULL : FULL PANO : PANORAMIC 1609 : 16:9 ZOOM 1609S : 16:9 ZOOM SUBTITLE 1409 : 14:9 ZOOM REGU : REGULAR
MULTI SCREEN
M2 : 2-pictures multi M12 : 12-pictures multi
(6) SETTING ITEM NO.
Setting item numbers are displayed. The setting item numbers to be displayed are listed below.
Item No. Setting item
S001 - S009 Video system setting
T001 - T003 Audio system setting
M001 - M224 Main CPU system setting
F001 - F002 Drive system setting
D001 (NOT USED)
Z001 (NOT USED)
(7) SETTING VALUE (DATA)
The SETTING VALUE is displayed.
4.5.6 CHANGE AND MEMORY OF SETTING VALUE
SELECTION OF SETTING ITEM
[FUNCTION /] key.
For scrolling up / down the setting items.
S001...S009 T001...T003 M001...M224 F001...F002 D001 Z001return to S001
CHANGE OF SETTING VALUE (DATA)
[FUNCTION /] key.
For scrolling up / down the setting values.
MEMORY OF SETTING VALUE (DATA)
Changed setting value is memorized by pressing [MUTING] key.
1-16 (No.YA462)
4.6 INITIAL SETTING VALUES IN THE SERVICE MODE
• Perform fine-tuning based on the "initial values" using the remote control when in the Service mode.
• The "initial values" serve only as an indication rough standard and therefore the values with which optimal display can be achieved may be different from the default values. But, don't change the values that are not written in "ADJUSTMENT PROCEDURE". They are fixed values.
4.6.1 VIDEO SYSTEM SETTING
Item No. Item Variable range Setting value
S001 R DRIVE 0 - 255 137 S002 G DRIVE 0 - 255 140 S003 B DRIVE 0 - 255 148 S004 RESREV 0 - 255 0 S005 RESREV 0 - 255 2 S006 RESREV 0 - 255 2 S007 RESREV 0 - 255 2 S008 RESREV 0 - 255 2 S009 RESREV 0 - 255 2
4.6.2 AUDIO SYSTEM SETTING
Item No. Item Variable range Setting value
T001 RESREV 0 - 15 2 T002 RESREV 0 - 63 2 T003 RESREV 0 - 63 2
4.6.3 MAIN CPU SYSTEM SETTING (Fixed values)
Item No. Item Variable range Setting value
M001 1E00 00 - FF 00 M002 1E01 00 - FF 00 M003 1E02 00 - FF 05 M004 1E03 00 - FF 01 M005 1E04 00 - FF 00 M006 1E05 00 - FF 00 M007 1E06 00 - FF 00 M008 1E07 00 - FF 00 M009 1E08 00 - FF 00 M010 1E09 00 - FF 00 M011 1E0A 00 - FF 01 M012 1E0B 00 - FF 00 M013 1E0C 00 - FF 01 M014 1E0D 00 - FF 00 M015 1E0E 00 - FF 00 M016 1E0F 00 - FF 00 M017 1E10 00 - FF 01 M018 1E11 00 - FF 00 M019 1E12 00 - FF 00 M020 1E13 00 - FF 01 M021 1E14 00 - FF 00 M022 1E15 00 - FF 00 M023 1E16 00 - FF 00 M024 1E17 00 - FF 00 M025 1E18 00 - FF 00 M026 1E19 00 - FF 00 M027 1E1A 00 - FF 00 M028 1E1B 00 - FF 00 M029 1E1C 00 - FF 00 M030 1E1D 00 - FF 00 M031 1E1E 00 - FF 00 M032 1E1F 00 - FF 00 M033 1E20 00 - FF 00 M034 1E21 00 - FF 00
Item No. Item Variable range Setting value
M035 1E22 00 - FF 00 M036 1E23 00 - FF 00 M037 1E24 00 - FF 00 M038 1E25 00 - FF 00 M039 1E26 00 - FF 00 M040 1E27 00 - FF 00 M041 1E28 00 - FF 00 M042 1E29 00 - FF 00 M043 1E2A 00 - FF 00 M044 1E2B 00 - FF 00 M045 1E2C 00 - FF 00 M046 1E2D 00 - FF 00 M047 1E2E 00 - FF 00 M048 1E2F 00 - FF 00 M049 1E30 00 - FF 00 M050 1E31 00 - FF 02 M051 1E32 00 - FF 01 M052 1E33 00 - FF 00 M053 1E34 00 - FF 00 M054 1E35 00 - FF 00 M055 1E36 00 - FF 01 M056 1E37 00 - FF 00 M057 1E38 00 - FF 87 M058 1E39 00 - FF 0C M059 1E3A 00 - FF 00 M060 1E3B 00 - FF 20 M061 1E3C 00 - FF 00 M062 1E3D 00 - FF 00 M063 1E3E 00 - FF 00 M064 1E3F 00 - FF 00 M065 1E40 00 - FF 00 M066 1E41 00 - FF 00 M067 1E42 00 - FF 04 M068 1E43 00 - FF 26 M069 1E44 00 - FF 00 M070 1E45 00 - FF 20 M071 1E46 00 - FF 04 M072 1E47 00 - FF 00 M073 1E48 00 - FF 00 M074 1E49 00 - FF 00 M075 1E4A 00 - FF 01 M076 1E4B 00 - FF 04 M077 1E4C 00 - FF 01 M078 1E4D 00 - FF 03 M079 1E4E 00 - FF 03 M080 1E4F 00 - FF 00 M081 1E50 00 - FF 06 M082 1E51 00 - FF 00 M083 1E52 00 - FF 22 M084 1E53 00 - FF 00 M085 1E54 00 - FF 00 M086 1E55 00 - FF 00 M087 1E56 00 - FF 00
(No.YA462)1-17
Item No. Item Variable range Setting value
M088 1E57 00 - FF 00 M089 1E58 00 - FF 00 M090 1E59 00 - FF 00 M091 1E5A 00 - FF 00 M092 1E5B 00 - FF 00 M093 1E5C 00 - FF 00 M094 1E5D 00 - FF 00 M095 1E5E 00 - FF 00 M096 1E5F 00 - FF 00 M097 1E60 00 - FF 00 M098 1E61 00 - FF 00 M099 1E62 00 - FF 00 M100 1E63 00 - FF 00 M101 1E64 00 - FF 00 M102 1E65 00 - FF 00 M103 1E66 00 - FF 00 M104 1E67 00 - FF 00 M105 1E68 00 - FF 00 M106 1E69 00 - FF 00 M107 1E6A 00 - FF 02 M108 1E6B 00 - FF 00 M109 1E6C 00 - FF 00 M110 1E6D 00 - FF 00 M111 1E6E 00 - FF 00 M112 1E6F 00 - FF 00 M113 1E70 00 - FF 00 M114 1E71 00 - FF 00 M115 1E72 00 - FF 00 M116 1E73 00 - FF 00 M117 1E74 00 - FF 00 M118 1E75 00 - FF 00 M119 1E76 00 - FF 00 M120 1E77 00 - FF 0F M121 1E78 00 - FF 00 M122 1E79 00 - FF 00 M123 1E7A 00 - FF 00 M124 1E7B 00 - FF 00 M125 1E7C 00 - FF 00 M126 1E7D 00 - FF 00 M127 1E7E 00 - FF 02 M128 1E7F 00 - FF 00 M129 1E80 00 - FF 01 M130 1E81 00 - FF 00 M131 1E82 00 - FF 01 M132 1E83 00 - FF 00 M133 1E84 00 - FF 00 M134 1E85 00 - FF 00 M135 1E86 00 - FF 00 M136 1E87 00 - FF 00 M137 1E88 00 - FF 00 M138 1E89 00 - FF 00 M139 1E8A 00 - FF 00 M140 1E8B 00 - FF 00 M141 1E8C 00 - FF 00 M142 1E8D 00 - FF 00 M143 1E8E 00 - FF 00 M144 1E8F 00 - FF 00 M145 1E90 00 - FF 00
Item No. Item Variable range Setting value
M146 1E91 00 - FF 00 M147 1E92 00 - FF 00 M148 1E93 00 - FF 00 M149 1E94 00 - FF 00 M150 1E95 00 - FF 00 M151 1E96 00 - FF 00 M152 1E97 00 - FF 00 M153 1E98 00 - FF 00 M154 1E99 00 - FF 00 M155 1E9A 00 - FF 01 M156 1E9B 00 - FF 00 M157 1E9C 00 - FF 03 M158 1E9D 00 - FF 00 M159 1E9E 00 - FF 00 M160 1E9F 00 - FF 00 M161 1EA0 00 - FF 00 M162 1EA1 00 - FF 01 M163 1EA2 00 - FF 00 M164 1EA3 00 - FF 01 M165 1EA4 00 - FF 00 M166 1EA5 00 - FF 00 M167 1EA6 00 - FF 00 M168 1EA7 00 - FF 00 M169 1EA8 00 - FF 00 M170 1EA9 00 - FF 00 M171 1EAA 00 - FF 00 M172 1EAB 00 - FF 00 M173 1EAC 00 - FF 0A M174 1EAD 00 - FF 00 M175 1EAE 00 - FF 00 M176 1EAF 00 - FF 00 M177 1EB0 00 - FF 00 M178 1EB1 00 - FF 00 M179 1EB2 00 - FF 00 M180 1EB3 00 - FF 00 M181 1EB4 00 - FF 00 M182 1EB5 00 - FF 00 M183 1EB6 00 - FF 00 M184 1EB7 00 - FF 00 M185 1EB8 00 - FF 00 M186 1EB9 00 - FF 00 M187 1EBA 00 - FF 00 M188 1EBB 00 - FF 00 M189 1EBC 00 - FF 00 M190 1EBD 00 - FF 00 M191 1EBE 00 - FF 00 M192 1EBF 00 - FF 00 M193 1EC0 00 - FF 00 M194 1EC1 00 - FF 00 M195 1EC2 00 - FF 01 M196 1EC3 00 - FF 00 M197 1EC4 00 - FF 00 M198 1EC5 00 - FF 00 M199 1EC6 00 - FF 00 M200 1EC7 00 - FF 00 M201 1EC8 00 - FF 00 M202 1EC9 00 - FF 00 M203 1ECA 00 - FF 00
1-18 (No.YA462)
Item No. Item Variable range Setting value
M204 1ECB 00 - FF 00 M205 1ECC 00 - FF 02 M206 1ECD 00 - FF 00 M207 1ECE 00 - FF 01 M208 1ECF 00 - FF 00 M209 1ED0 00 - FF 00 M210 1ED1 00 - FF 00 M211 1ED2 00 - FF 00 M212 1ED3 00 - FF 00 M213 1ED4 00 - FF 00 M214 1ED5 00 - FF 00 M215 1ED6 00 - FF 00 M216 1ED7 00 - FF 00 M217 1ED8 00 - FF 00 M218 1ED9 00 - FF 00 M219 1EDA 00 - FF 00 M220 1EDB 00 - FF 00
4.7 ADJUSTMENT PROCEDURE
4.7.1 VIDEO CIRCUIT
Item
WHITE BALANCE (HIGHLIGHT)
Measuring
instrument
Remote control unit
Signal generator
Test point Adjustment part Description
[1.ADJUST] S001: R DRIVE (Red drive) S002: G DRIVE (Green drive) S003: B DRIVE (Blue drive)
Item No. Item Variable range Setting value
M221 1EDC 00 - FF 00 M222 1EDD 00 - FF 00 M223 1EDE 00 - FF 00 M224 1EDF 00 - FF 00
4.6.4 DRIVE SYSTEM SETTING (Fixed values)
Item No. Item Variable range Setting value
F001 DD 0 - 1 0 F002 RAM REF 0 - 1 0
4.6.5 NOT USED (Fixed values)
Item No. Item Variable range Setting value
D001 RESREV 0 - 255 2
4.6.6 NOT USED (Fixed values)
Item No. Item Variable range Setting value
Z001 RESREV 0 - 255 2
(1) Receive a PAL 75% all white signal. (2) Set PICTURE MODE to "STANDARD". (3) Set ZOOM to "FULL". (4) Set WHITE BALANCE to "MID". (5) Select "1.ADJUST" from the SERVICE MODE. (6) Adjust to Keep one of <S001> (Red drive),
<S002> (Green drive) or <S003> (Blue drive) unchanged, then lower the other two so that the all-white screen is equally white throughout.
NOTE:
Set one or more of <S001>, <S002>, and <S003> to "137".
(7) Check that white balance is properly tracked
from low light to high light. If the white balance tracking is deviated, adjust to correct it.
(8) Press the [MUTING] key to memoirze the set
value.
(No.YA462)1-19
SECTION 5
SERVICE MENU
1. ADJUST
2. SELF CHECK
3. I2C STOP
LOB 0 FAN 0 AUD 0
ANA 9 DIG 9
0000 00 00
TMP 0 L 1 0 L 2 0 DDT 0 FAN 0 L C 0
IRS 0
TROUBLESHOOTING
5.1 SELF CHECK FEATURE
5.1.1 OUTLINE
This unit comes with the "Self check" feature, which checks the operational state of the circuit and displays/saves it during failure.Diagnosis is performed when power is turned on, and information input to the main microcomputer is monitored at all time.Diagnosis is displayed in 2 ways via screen display and LED flashes. Failure detection is based on input state of I
2
C bus and
the various control lines connected to the main microcomputer.
5.1.2 HOW TO ENTER THE SELF CHECK MODE
Before enter the SELF CHECK MODE, press the [MODE] key to confirm that "TV" position is indicated. If it is in a wrong position, the SELF CHECK MODE operation cannot be performed.
(1) Press the [DISPLAY] key and [MUTING] key
simultaneously, then enter the SERVICE MODE. (2) Press the [2] key SELF CHECK MODE. (3) Press the [ZOOM] key to enter Page 2 of the SELF CHECK
MODE.
*Use the [CINEMA] key to toggle between Page 1 and Page
2.
NOTE:
When a number key other than the [2] key is pressed in the SERVICE MODE screen, the other relevant screen may be displayed. This is not used in the SELF CHECK MODE. Press the
[MENU] key to return to the MAIN MENU SCREEN.
5.1.3 HOW TO EXIT THE SELF CHECK MODE To Save Failure History:
Turn off the power by unplugging the AC power cord plug when in the Self check display mode.
To Clear (Reset) Failure History:
Turn off the power by pressing the [POWER] key on the remote control unit when in the Self check display mode.
5.1.4 FAILURE HISTORY
Failure history can be counted up to 9 times for each item. When the number exceeds 9, display will remain as 9. Failure history will be stored in the memory unless it has been deleted.
NOTE:
Only SYNC (with/without sync signals) will be neither counted nor stored.
5.1.5 POINTS TO NOTE WHEN USING THE SELF CHECK FEATURE
In addition to circuit failures (abnormal operation), the following cases may also be iagnosed as "Abnormal" and displayed and counted as "NG".
(1) Temporary defective transmissions across circuits due to
pulse interruptions
(2) Misalignment in the on/off timing of power for I
2
C bus
(VCC) when turning on/off the main power. Diagnosis may be impeded if a large number of items are displayed as "NG". As such, start Self check check only after 3 seconds in the case of receivers and 5 seconds in the case of panels upon turning on the power. If recurrences are expected, ensure to clear (reset) the failure history and record the new diagnosis reults.
SERVICE MENU SCREEN
SERVICE MENU
1. ADJUST
2. SELF CHECK
3. I2C STOP
SELF CHECK MODE SCREEN (Page 1)
LOB 0 FAN 0 AUD 0
ANA 9 DIG 9
0000 00 00
Item Failure history
1-20 (No.YA462)
SELF CHECK MODE SCREEN (Page 2)
TMP 0 L 1 0 L 2 0 DDT 0 FAN 0 L C 0
IRS 0
Item Failure history
Fig.1
5.1.6 DETAILS
Self check is performed for the following items:
< Page 1 of screen >
Detection item Display Detection content
Low bias line short protection
LOB Confirm the operation of the low bais (16V / 5V /
LCD5V / 3.3V / 1.2V) protection circuit.
, Q9651[DC-DC PWB]
Q9601
Diagnosis
signal (line)
Detection timing
LB_PRO Detection starts 3 seconds after
the power is turned on. If error continues between 200 ms the power is turned off.
Fan lock FAN Not used ---- ----
Abnormal rise of temperature in audio circuit
AUD Confirmation of the temperature of audio circuit.
TH6401
[D-AMP PWB]
---- Detection starts 3 seconds after the power is turned on.
If the temperture of 90°C is
detected for 3 seconds the power is turned off.
Devices on the ANALOG PWB
Devices on the DIGITAL PWB
ANA Confirmation of reply of ACK signal which uses
2
C communication.
I
IC101, IC102, IC381, IC601, IC606, TU3001
[ANALOG PWB]
DIG Confirmation of reply of ACK signal which uses
2
C communication.
I
IC6401 [DIGITAL PWB]
SDA If it checks whenever I
communication is performed and no reply of ACK signal an error will be counted.
SDA If it checks whenever I
communication is performed and no reply of ACK signal an error will be counted.
< Page 2 of screen >
Detection item Display Detection content
Diagnosis
signal (line)
Detection timing
Temp. sensor TEM Not used ---- ----
Lamp does not light up L1 Not used ---- ----
Lamp goes out L2 Not used ---- ----
Abnormal DD CPU
DDT Not used ---- ----
circuit
Fan lock FAN Not used ---- ----
Lamp cover open LC Not used ---- ----
Abnormal of optical iris IRS Not used ---- ----
2
C
2
C
5.1.7 METHOD OF DISPLAY WHEN A RASTER IS NOT OUTPUT
In the state where a raster is not output by breakdown of the set, an error is displayed by blink of the POWER LED.
Type of error POWER LED flash cycle
Low bias line short protection Blue turnig on and off at 1 second intervals.
Abnormal rise of temperature in audio circuit Blue turnig on and off at 0.5 second intervals.
< Explanation of operation >
If error is detected, the power is turned off. Shortly after a power is turned off, POWER LED will be blinked. Power cannot be turned on until the power cord takes out and inserts, after a power is turned off.
(No.YA462)1-21
Victor Company of Japan, Limited Display Category 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan
(No.YA462)
Printed in Japan
VPT
ENGLISH
LT-Z26EX6 LT-Z32EX6 LT-Z37EX6
WIDE LCD PANEL TV INSTRUCTIONS
© 2006 Victor Company of Japan, Limited
0706TKH-CR-MU
LT-Z26EX6
GGT0128-001B-H-EN
I
II
1
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LT-Z26EX6 / LT-Z32EX6 LT-Z37EX6
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IMPORTANT! PREPARE USE
SETTINGS
TROUBLE?
Expanding the world of
Enjoy rich multi-media with JVC
VHF/UHF
Digital camera
Video camera
Game console
Audio components
VCR DVD player
DVD recorder
Personal
Computer
beautiful images
First things first!
Warning ············································ 3
Getting started
Names of all the parts ······················ 5Basic connections ···························· 7Initial settings ··································· 9Editing channels ····························· 11
· Registering channels
Connecting external devices ·········· 13
Let’s try it out
Enjoying your new TV! ··················· 15
· TV / Teletext / Video / etc.
Watching TV ···································17Viewing teletext ······························ 19Watching videos / DVDs ················ 21
Try the advanced features
Useful functions ······························23
· Take a snapshot
· View and search in multi-picture mode
· “Sleep Timer” / “Channel Guard”
Just the way you like it
Customising your TV ······················ 27Advanced picture adjustment ········· 29
·
Reduce noise / Watch a more natural picture
· Set the aspect ratio, etc.
When you have trouble
Troubleshooting ····························· 31Technical information ····················· 35“CH/CC” List ··································· 37Specifications ································· 38
Contents
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First things first!
IMPORTANT! PREPARE USE
SETTINGS
TROUBLE?
Never dismantle the rear panel!
It may cause an electric shock.
Never obstruct the ventilation holes!
It may cause overheating or a fire.
Handle LCD panel with care!
Use a soft, dry cloth when cleaning.
Never try to repair the TV yourself!
If the problem cannot be solved in
“Troubleshooting” (P. 31), unplug the power cord and contact your retailer.
If the TV is damaged or behaving strangely, stop using it at once!
Unplug the power cord and contact
your retailer.
Warning
For more details on installation, usage and safety
Consult your retailer
Never expose to rain or moisture!
To prevent fire or electric
shock, never allow liquids to enter the unit.
Hold the TV so as not to scratch the screen!
Do not touch the screen when carrying the
TV.
Do not carry the TV on your own!
In order to prevent accidents,
ensure that the TV is carried by two or more people.
Please follow all the guidelines below
Never listen to headphones at high volume!
It may damage your hearing.
Never place anything on the TV!
Placing liquids, naked
flames, cloths, paper, etc. on the TV may cause a fire.
Never insert objects into the cabinet openings!
It may cause a fatal
electric shock. Take care when children are near.
Unplug the power cord when going out!
The power buttons on
the remote control and the TV unit cannot completely turn off the TV. (Make appropriate arrangements for bedridden people.)
For more details on installation, usage and safety
Consult your retailer
Make enough room for inserting and removing the power plug!
Place the TV as close to the outlet as possible!
The main power supply for this TV is
controlled by inserting or removing the power plug.
Never cut or damage the power cord!
If the AC plug is not the
right shape, or the power cord is not long enough, use an appropriate plug adapter or extension cable. (Consult your retailer.)
Follow this manual regarding setup!
Connect only to a 110-240V, 50/60Hz
AC outlet.
When attaching the TV to the wall, use the optional JVC wall mounting unit!
Consult a qualified technician.See the included manual on mounting
procedures.
JVC assumes no responsibility for
damage due to improper mounting.
Do not allow the TV to fall!
Do not rest your elbows on, or allow
children to hang from the TV. There is a risk that the TV will fall and cause injuries.
3-4 7/18/2006 3:00:04 PM
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Getting started
TV/VIDEO
MENU/O
K
CHANNEL
VOLUME
IMPORTANT! PREPARE USE
SETTINGS
TROUBLE?
Change channel / page
Volume
Names of all the parts
Turn on “Cinema Surround” (P. 17)
Take a snapshot of the screen (P. 23)
View in multi-picture mode (P. 23)
Hold the current page
Bookmark pages
Reveal hidden pages
Enlarge the text
Switch briefly between teletext and TV
To index page
Return to TV
/ Watch video, etc. (P. 21)
Change channel / page
To teletext (P. 19)
Select and confirm settings in menus
To previous screen
Change channel / page
Switch between “VCR / TV / DVD”
When watching TV / Video
Change the aspect ratio (P. 17)
Mute
When viewing teletext (P. 19)
Insert the batteries
Use two “AA/R06” dry cell batteries. Insert the batteries from the - end, making sure the + and - polarities are correct.
Return to channel
you want to view
Display on-screen menu (P. 27)
Power On / Off
Remote control sensor
Power lamp
ON: Lit (Blue) OFF: Unlit
Power lamp lights while
the TV is on.
“Power Lamp” (P. 28)
To headphones (P. 13)
Display on-screen menu / set
Switch between TV / AV devices
Remove the terminal cover
Remote control
(RM-C1835)
“AA/R06” Batteries
Check accessories
For confirming the TV works
Channel information
(P. 17)
If the cover cannot be closed due to the cables being in the way
Do not force the cover to close (leave it open).
Connecting terminals on the back of the TV Connecting External devices (P. 13)
Power On / Off
Volume
LT-Z26EX6
Press to remove.
Press to remove.
LT-Z37EX6
Press to remove.
LT-Z32EX6
Cable coverCable coverCable cover
5-6 7/18/2006 3:00:08 PM
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IMPORTANT! PREPARE USE
SETTINGS
TROUBLE?
Connect the aerial
Basic connections
200mm
50mm150mm 150mm 50mm
VCR / DVD recorder
After all the connections have been made, insert the plug into an AC outlet.If both composite and S-VIDEO cables are connected, S-VIDEO will be enable.
After all the connections have been made, insert the plug into an AC outlet.
AERIAL
Connect a VCR / DVD recorder
AERIAL
Power requirements
Connect the power cord only to a 110-240V,
50/60Hz AC outlet.
When attaching the TV to the wall, use the
optional JVC wall mounting unit
Consult a qualified technician.See the included manual on mounting procedures.JVC assumes no responsibility for damage due to
improper mounting.
200mm × 200mm mount which conforms to VESA
standards.
Installation requirements
To avoid overheating, ensure the unit has ample
room.
Please read the user manuals of each device carefully before setup. It is necessary to connect an aerial to watch TV.
Connect with other devices “Connecting external devices” (P. 13)
Care when setting Tidying the cables
VIDEO-1
(R)
(L)
(Y)
(Pb)
(Pr)
To remove the cable cover, refer to back of the cover.
LT-Z32EX6 / LT-Z26EX6LT-Z37EX6
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Langua
ge
>
Group-1 Group-2 Group-3 Group-4
Group-5
Teletext Language
01
AV
PR
02 03 04 05 06 07 08 09
CH/CC
CH
21
CH
22
CH
23
CH
24
CH
25
CC
02
CC CC
04
CC
05
03
> Edit
ID
CH
>
14%
Auto Program
28
IMPORTANT! PREPARE USE
SETTINGS
TROUBLE?
Initial settings
Set the menu language, installation location and automatically register the TV channels. These channels can be edited later in “Editing channels” (P. 11).
To the previous screen
If the “JVC” logo does not appear or
if you wish to make changes later
“Language”, “Teletext language” and
“Auto Program” (P. 28)
Exit
MENU
BACK
TV
Begin
Select a language
Select the teletext language group
Check what was registered
1 select
Shown only when
powering on for the first time.
The power on the unit can also be used.
Edit channels
in “Editing channels” (P. 11)
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2 set
Confirm
For the teletext language group
“Language group for teletext” (P. 35)
If the characters are unreadable.
“Language group for teletext” (P. 35)
5
Automatically register channels
select
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· Registering channels
Set Up
Set Up
Auto Program
Video-3 Setting AI Volume
HDMI Setting PC Position
Video Off
Video
Teletext Language
Edit/Manual
Video-1 Setting
Language
01
AV
PR
02 03 04 05 06 07 08 09
CH/CC
CH
21
CH
22
CH
23
CH
24
CH
25
CC
02
CC CC
04
CC
05
03
> Edit
ID
01
AV
PR
02 03 04 05 06 07 08 09
CH/CC
CH
21
CH
22
CH
23
CH
24
CH
25
CC
02
CC
03
CC
04
CC
05
>Edit
ID
> Edit
01
AV
PR
02 03 04
05
06 07 08 09
CH/CC
ID
CH
21
CH
22
CH
23
CH
24
CH
25
CC
03
CC
04
CC
05
01
AV
PR
02 03 04 05 06
07
08 09
CH/CC
CH
21
CH
22
CH
23
CH
24
CH
25
CC
02
CC
03
CC
04
CC
05
A
>Edit
ID
01
AV
PR
02 03 04 05 06
07
08 09
CH/CC
ID
CH
21
CH
22
CH
23
CH
24
CH
25
CC
02
CC
03
CC
04
CC
05
JVC
>Edit
01
AV
PR
02 03 04 05 06
07
08 09
CH/CC
CH
21
CH
22
CH
23
CH
24
CH
25
CC
02
CC
CC
03
CC
04
>Edit
ID
>Edit
01
AV
PR
02 03 04 05 06
07
08 09
CH/CC
ID
CH
21
CH
22
CH
23
CH
24
CH
25
CC
02
CC
CC
03
CC
04
12
>
01
AV
PR
02 03 04 05 06 07
CH/CC
CH
22
CH
23
CH
24
CH
25
CC
02
CC
03
CC
04
Edit
ID
>
11
10
PR
12 13 14 15 16 17
CH/CC
CH
02 (B/G
)
CC
06
Manual
ID
>Manual
11
10
PR
12 13 14 15 16 17
CH/CC
ID
CH
08 (B/G
)
CC
06
>
11
10
PR
12 13 14 15 16 17
CH/CC
CH
08
CC
06
Edit
ID
>
Manual
11
10
PR
12 13 14 15 16
CH/CC
ID
CH
08 (I
)
CC
06
IMPORTANT! PREPARE USE
SETTINGS
TROUBLE?
To the previous
screen
Exit
Display the menu bar
Select “Set Up”
Select “Edit / Manual”
Finish
When coming from “Initial settings” (P. 9), skip to .
Select a row
Edit
Move a channel’s position
MOVE
Editing channels
Edit the channels registered with “Auto Program” in “Initial settings” (P. 9).
1
2
3
4
5 6
Edit a channel name
ID
Insert a channel
INSERT
Delete a channel
DELETE
Register a new channel
MANUAL
select
move out move in
select
1 enter the first
character
From high frequencies
or
/
select a system
Receives the
broadcast signal.
If you can not receive the
channel you want to view, press 3 to change the sound system.
“Sound system in your
country or region” (P. 35)
Auto-search begins,
and the nearest frequency is imported.
Repeat the previous
steps until the desired channel is displayed
From low frequencies
“CH/CC” List (P. 37)
1 Begin 2 Select a destination 3 Finish
1 Begin 2 Enter a channel name
2 Select a “CH / CC” 3 Enter a number
2
Beginning channel search
1 Begin
3 Set
Adjust
Channel fine tuning
If the picture or sound is unnatural
1 select
2 next
1 select
2 next
set
1 Begin
select
1 Delete
2
next column
11-12 7/18/2006 3:00:21 PM
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