SERVICE MANUAL
INTEGRATED DIGITAL TERRESTRIAL/SATELLITE LCD TELEVISION
YA707<Rev.001>20097SERVICE MANUAL
LT-42HB1BU/AX
COPYRIGHT © 2009 Victor Company of Japan, Limited
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
COPYRIGHT © 2009 Victor Company of Japan, Limited
No.YA707<Rev.001>
2009/7
Items Contents
Dimensions (W × H × D) [Without stand] 101.4 cm × 63.55 cm × 27.86 cm [101.4 cm × 64.65 cm × 10.87 cm]
Mass [Without stand] 22.7 kg [21.42 kg]
Power Input AC220 V - AC240 V, 50 Hz
Power Consumption 170 W (Standby: 0.8 W)
TV RF System Analog CCIR (B/G, I, D/K, L)
Digital DVB-T / DVB-S
Colour System PAL, SECAM, NTSC 3.58/4.43 [EXT only]
Stereo System NICAM (B/G, I, D/K, L), A2 (B/G, D/K)
Receiving
Frequency
Analog VHF: 45.25 MHz - 470MHz
UHF: 470 MHz - 855.25 MHz
CATV: 116MHz - 172MHz / 220 MHz - 469 MHz
Digital Terrestrial: 474 MHz - 858 MHz(UHF), 177.5 MHz - 6.5 MHz (VHF)
Satellite: 950 MHz - 2150 MHz
Intermediate
Frequency
VIF 38.9 MHz (B/G, I, D/K, L)
SIF 33.4 MHz (5.5 MHz:B/G)
32.9 MHz (6.0 MHz:I)
32.4 MHz (6.5MHz:D/K)
Colour Sub
Carrier Frequency
PAL 4.43MHz
SECAM 4.40625 MHz / 4.25 MHz
NTSC 3.58 MHz / 4.43 MHz
Teletext System Analog FLOF (Fastext), TOP
Digital EBU TEXT
LCD panel 42 V-inch wide aspect (16 : 9)
Screen Size Diagonal : 107.0 cm (H: 93.0 cm × V:52.32 cm)
Display Pixels Horizontal : 1920 dots × Vertical : 1080 dots
Audio Power Output 10 W + 10 W
Speaker 4.0 cm × 20.0 cm, oval type × 2
Aerial terminal (VHF/UHF/BS) 75 Ω unbalanced, coaxial × 2
EXT-1 / EXT-2 (Input/Output) 21-pin Euro connector (SCART socket ) × 2
EXT-3
(Input)
Component Video
750p / 1125i
625p / 525p / 625i / 525i
RCA pin jack × 3
Y: 1 V (p-p) (Sync signal: ±0.35V(p-p), 3-value sync.), 75 Ω / Pb/Pr: ±0.35V(p-p), 75 Ω
Y: 1 V (p-p), Positive (Negative sync.), 75 Ω / Cb/Cr: 0.7 V(p-p), 75 Ω
Audio 500 mV(rms) (-4dBs), high impedance, RCA pin jack × 2
EXT-4
(Input)
S-Video Mini-DIN 4 pin × 1
Y: 1 V (p-p), Positive (Negative sync provided), 75 Ω
C: 0.286 V (p-p) (Burst signal), 75 Ω
Video 1V (p-p), Positive (Negative sync provided), 75 Ω, RCA pin jack × 1
Audio 500 mV (rms), High impedance, RCA pin jack × 2
EXT-5 / EXT-6 / EXT-7
(Digital Input)
Video / Audio HDMI 2-row 19pin connector × 3
(Digital-input terminal is not compatible with picture signals of personal computer)
• 576i(625i),576p(625p),480i(525i),480p(525p),720p(750p),1080i(1125i) signals are
available.
• All HDMI inputs support DVI video but only first HDMI input (EXT-5) supports DVI audio
through component audio input (EXT-2 or EXT-3).
PC (RGB) Input Video D-sub 15 pin × 1
R/G/B : 0.7 V (p-p), 75Ω
HD / VD : 1 V (p-p) to 5 V (p-p), high impedance
Audio 3.5 mm stereo mini jack × 1
Digital Audio Optical Output Digital SPDIF × 1
Headphone 3.5 mm stereo mini jack × 1
Remote Control Unit RM-C2503 (AAA/R03 dry cell battery × 2)
Design & specifications are subject to change without notice.
1-2 (No.YA707<Rev.001>)
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 1000Ω per volt or more
sensitivity in the following manner. Connect a 1500Ω
10W resistor paralleled by a 0.15µF AC-type capacitor
between an exposed metal part and a known good earth
ground (water pipe, etc.). Measure the AC voltage
across the resistor with the AC voltmeter. Move the
resistor connection to each exposed metal part,
particularly any exposed metal part having a return path
to the chassis, and measure the AC voltage 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
0.7mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.35V
AC (r.m.s.). This corresponds to 0.3mA 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.YA707<Rev.001>)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
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.
200 mm
*Diagram differs from actual appearance.
1.2.2 NOTES ON HANDLING
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.
150 mm 50
*Diagram differs from actual appearance.
mm
150 mm 50 mm
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.
It fixes in a band.
TV STAND
*Diagram differs from actual appearance.
1-4 (No.YA707<Rev.001>)
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.YA707<Rev.001>)1-5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 FEATURES
DIGITAL TUNER
This TV can receive both DVB-T (Digital terrestrial broadcasting),
DVB-S(Digital satellite broadcasting), and Analogue terrestrial
broadcasting.
HDMI INPUT
By connecting a HDMI compatible device, high definition
pictures can be displayed on your TV in their digital form.
2.2 21-PIN EURO CONNECTOR (SCART) : EXT-1 / EXT-2
Pin No. Signal designation Matching value EXT-1 EXT-2
1 AUDIO R output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINE OUT)
2 AUDIO R input 500mV(rms) (Nominal), High impedance Used (R1) Used (R2)
3 AUDIO L output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINE OUT)
4 AUDIO GND Used Used
5 GND (B) Used Used
6 AUDIO L input 500mV(rms) (Nominal), High impedance Used (L1) Used (L2)
7 B input 700mV
8 FUNCTION SW
(SLOW SW)
Low : 0V-3V
High : 8V-12V, High impedance
, 75Ω Used Not used
(B-W)
9 GND (G) Used Used
10 SCL Not used Used (SCL2)
11 G input 700mV
, 75Ω Used Not used
(B-W)
12 SDA Not used Used (SDA2)
13 GND (R) Used Used
14 GND (YS) Used Not used
15 R / C input R : 700mV
C : 300mV
(B-W)
(P-P)
, 75Ω
, 75Ω
16 Ys input (FAST SW) Low : 0V-0.4V, High : 1V-3V, 75Ω Used Not used
17 GND (VIDEO output) Used Used
18 GND (VIDEO input) Used Used
19 VIDEO output 1V
20 VIDEO / Y input 1V
(Negative sync), 75Ω Used (TV OUT) Used (LINE OUT)
(P-P)
(Negative sync), 75Ω Used Used
(P-P)
21 COMMON GND Used Used
PICTURE MODE
This function can adjust the picture settings automatically.
There are BRIGHT, STANDARD, SOFT and MANUAL in the
PICTURE MODE.
ZOOM
This function can change the screen size according to the
picture aspect ratio.
3D CINEMA SURROUND
You can enjoy sounds with a wider ambience.
Used Used
Used (R) Used (C2)
(P-P= Peak to Peak, B-W= Blanking to white peak)
[Pin assignment]
20 18 16 14 12 10 8 6 4 2
21 19 17 15 13 11 9 7 5 3 1
1-6 (No.YA707<Rev.001>)
2.3 TECHNICAL INFORMATION
2.3.1 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.
2.3.1.1 SPECIFICATIONS
The following table shows the specifications of this unit.
Item Specifications
Maximum dimensions ( W × H × D ) 983.0 mm × 576.0 mm × 52.7 mm
Weight 13.6 kg
Effective screen size Diagonal : 107.0 cm (H: 93.0 cm × V:52.32 cm)
Aspect ratio 16 : 9
Drive device / system a-Si-TFT active matrix system
Resolution Horizontally 1920 × Vertically 1080 × RGB < W-XGA > 6220800 dots in total
Pixel pitch (pixel size) Horizontally: 0.4845 mm, Vertically: 0.4845 mm
Displayed color 1073.7 million colors 256 colors for R G and B
Brightness 500 cd/m
2
Contrast ratio 5000 : 1
Response time ( G to G ) less than 5.5 ms
View angle (Horizontally) 178°
View angle (Vertically) 178°
Surface polarizer Anti-Glare type Low reflective coat
Color filter Vertical stripe
Backlight Cold cathode fluorescent lamp
Power supply voltage in LCD 12 V
Power supply voltage in inverter 24 V
Panel interface system LVDS (Low Voltage Differential Signaling)
2.3.1.2 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.YA707<Rev.001>)1-7
SECTION 3
DISASSEMBLY
3.1 CAUTION AT DISASSEMBLY
• Make sure that the power cord is disconnected from the outlet.
• Pay special attention not to break or damage the parts.
• Make sure that there is no bent or stain on the connectors before inserting, and firmly insert the connectors.
• Be sure to reattach the wire clamps removed during the procedure to the original positions. (Attaching the wire clamps in wrong
positions may affect the performance.)
REFERENCE:
When removing each board, remove the connector if necessary. The operation is easier if you write down the connection points
(connector numbers) of the connector. For connection of each board, refer to the "WIRING DIAGRAM" of the Standard Circuit
Diagram.
3.2 DISASSEMBLY PROCEDURE
3.2.1 REMOVING THE REAR COVER (Fig.3-1)
(1) Remove the 16 screws [A].
(2) Remove the REAR COVER.
3.2.2 REMOVING THE POWER UNIT (Fig.3-1)
• Remove the REAR COVER.
(1) Remove the 4 screws [B].
(2) Remove the POWER UNIT.
3.2.8 REMOVING BACK BRACKET (Fig.3-1)
• Remove the REAR COVER.
(1) Remove the 4 screws [J].
(2) Remove the BACK BRACKET.
3.2.9 REMOVING THE IR PWB (Fig.3-1)
• Remove the REAR COVER.
(1) Remove the 1 screw [K].
(2) Remove the IR PWB.
3.2.3 REMOVING THE MAIN PWB (Fig.3-1)
• Remove the REAR COVER.
(1) Remove the 1 screw [C].
(2) Remove the SIDE SHIELD.
(3) Remove the 6 screws [D].
(4) Remove the MAIN PWB.
3.2.4 REMOVING THE KEY PWB (Fig.3-1)
• Remove the REAR COVER.
(1) Remove the 1 screws [E].
(2) Remove the CONTROL BASE and KEY PWB together.
(3) Remove the 2 screws [F].
(4) Remove the KEY PWB from the CONTROL BASE.
3.2.5 REMOVING THE INVERTER PWB (Fig.3-1)
• Remove the REAR COVER.
(1) Remove the 6 screws [G].
(2) Remove the INVERTER PWB COVER.
(3) Remove the INVERTER PWB.
3.2.6 REMOVING THE POWER BRACKET (Fig.3-1)
• Remove the REAR COVER.
(1) Remove the 2 screws [H].
(2) Remove the POWER BRACKET.
3.2.7 REMOVING THE SPEAKER (Fig.3-1)
• Remove the REAR COVER.
(1) Remove the SPEAKER(x2).
3.2.10 REMOVING THE STAND (Fig.3-1)
(1) Remove the 4 screws [L].
(2) Remove the STAND.
3.2.11 REMOVING THE LCD CONTROL PWB (Fig.3-1)
• Remove the REAR COVER.
• Remove the STAND.
(1) Remove the 5 screws [L], 2 screws [M] and 5 screws [N].
(2) Remove the MAIN SHIELD.
(3) Remove the 6 screws [P].
(4) Remove the LCD CONTROL PWB.
3.2.12 REMOVING THE LED PWB (Fig.3-1)
• Remove the REAR COVER.
• Remove the STAND.
• Remove the MAIN SHIELD.
(1) Remove the 2 screws [Q] and 2 screws [R].
(2) Remove the BOTTOM FRAME.
(3) Remove the 2screws [S].
(4) Remove the LED PWB.
3.2.13 REMOVING THE LCD PANEL UNIT (Fig.3-1)
• Remove the REAR COVER.
• Remove the STAND.
• Remove the MAIN SHIELD.
• Remove the BOTTOM FRAME.
• Remove the IR PWBand PANEL BRACKET together.
(1) Remove the 3 screws [T].
(2) Remove the PANEL BRACKET(x3).
(3) Remove the LCD PANEL UNIT.
1-8 (No.YA707<Rev.001>)
REAR COVER
A
POWER UNIT
INVERTER
PWB COVER
SIDE SHIELD
MAIN PWB
B
J
SUPPORT
BRACKET
L
H
M
POWER
BRACKET
C
D
N
MAIN SHIELD
L
Q
M
G
LCD CONTROL
PWB COVER
P
LCD CONTROL
PWB
Q
BOTTOM FRAME
R
T
PAN EL
BRACKET
R
STAND
T
PANEL BRACKET
LCD PANEL
INVERTER PWB
F
KEY PWB
E
CONTROL
KNOB
IR PWB
S
K
PANEL BRACKET
Fig.3-1
T
PANEL BRACKET
LED PWB
SPEAKER
FRONT CABINET
SPEAKER
(No.YA707<Rev.001>)1-9
3.3 MEMORY IC REPLACEMENT
• This model uses the memory IC.
• This memory IC stores data for proper operation of the video and drive circuits.
• When replacing, be sure to use an IC containing this (initial value) data.
3.3.1 MEMORY IC REPLACEMENT PROCEDURE
1. Power off
Switch off the power and disconnect the power plug from the AC outlet.
2. Replace the memory IC
Be sure to use the memory IC written with the initial setting values.
3. Power on
Connect the power plug to the AC outlet and switch on the power.
4. Receiving channel setting
Refer to the OPERATING INSTRUCTIONS and set the receive channels (Channels Preset) as described.
5. User setting
Check the user setting items according to the given in page later. Where these do not agree, refer to the OPERATING
INSTRUCTIONS and set the items as described.
6. FACTORY MODE setting
Verify what to set in the FACTORY MODE, and set whatever is necessary.
3.3.2 FACTORY MODE SETTING
FACTORY MODE SCREEN SETTING ITEM
FACTORY MODE SCREEN
Factory Menu
ADC Calibration
White Balance
Miscellaneous
Engineering Menu
Panel Select xxxxxxxxxxx
Factry Default
Model Name : xxxxxx
Software Version : xxxxxx
OTA Loader Version : xxxxxx
MCU Version : xxxxxx
System Version : xxxxxx
Kernel Version : xxxxxx
Boot Loader Version : xxxxxx
Update Date : xxxxxx
Setting items Settings
ADC Calibration [Do not adjust]
White Balance Adjust
Miscellaneous [Do not adjust]
Engineering Menu [Do not adjust]
Panel Select [Do not adjust]
Factory Default ---
1-10 (No.YA707<Rev.001>)
3.3.3 SETTINGS OF FACTORY SHIPMENT
3.3.3.1 BUTTON OPERATION 3.3.3.2 REMOTE CONTROL DIRECT OPERATION
Setting item Setting position
POWER Off
CHANNEL PR1
VOLUME 10
AV TV
3.3.3.3 REMOTE CONTROL MENU OPERATION
(1) Picture
Setting item Setting position
Mode Bright
Colour Temperature Cool
Noise Reduction Low
Fleshtone Off
24p Cinema On
(2) Sound
Setting item Setting position
Bass 0
Treble 0
Balance 0
Auto Volume Control Off
Digital Audio Output PCM
3D Cinema surround Off
TV Speaker On
(3) Installation
Setting item Setting item Setting position
Terrestrial Channel
Search
Antenna Power Off
Auto Channel
Enable
Numbering
Satellite Channel
Antenna Type LNB Only
Search
Software Update ---
Edit Channel List ---
Edit Favourite List ---
Signal Detection ---
Setting item Setting position
CHANNEL PR1
VOLUME 10
ZOOM AUTO
SUB POWER OFF
(4) Feature
Setting item Setting position
Language Setting Menu Language English
Audio Language German
Subtitle Language German
Subtitle Display Auto
Subtitle Font Variable
Audio Description Off
Time Setting Date --/--/20--
Local Time --:--
Sleep Timer Off
Power On Timer Off
Channel ---
Volume 20
Power Off Timer Off
Auto Shut Off Off
Parental Control Child Lock Disable
Maturity Rating View All
Change PIN Code ---
PC ---
Other Settings Zoom Auto
4 : 3 Aspect Setting Panoramic
OSD Transparency 30%
Blue Back Off
Power Lamp On
Control with HDMI On
Auto Demonstration
Off
(No.YA707<Rev.001>)1-11
3.4 REPLACEMENT OF CHIP COMPONENT
3.4.1 CAUTIONS
(1) Avoid heating for more than 3 seconds.
(2) Do not rub the electrodes and the resist parts of the pattern.
(3) When removing a chip part, melt the solder adequately.
(4) Do not reuse a chip part after removing it.
3.4.2 SOLDERING IRON
(1) Use a high insulation soldering iron with a thin pointed end of it.
(2) A 30w soldering iron is recommended for easily removing parts.
3.4.3 REPLACEMENT STEPS
1. How to remove Chip parts
2. How to install Chip parts
[Resistors, capacitors, etc.]
(1) As shown in the figure, push the part with tweezers and
alternately melt the solder at each end.
(2) Shift with the tweezers and remove the chip part.
[Transistors, diodes, variable resistors, etc.]
(1) Apply extra solder to each lead.
SOLDER
SOLDER
[Resistors, capacitors, etc.]
(1) Apply solder to the pattern as indicated in the figure.
(2) Grasp the chip part with tweezers and place it on the
solder. Then heat and melt the solder at both ends of the
chip part.
[Transistors, diodes, variable resistors, etc.]
(1) Apply solder to the pattern as indicated in the figure.
(2) Grasp the chip part with tweezers and place it on the
solder.
(3) First solder lead A as indicated in the figure.
(2) As shown in the figure, push the part with tweezers and
alternately melt the solder at each lead. Shift and remove
the chip part.
NOTE :
After removing the part, remove remaining solder from the
pattern.
1-12 (No.YA707<Rev.001>)
A
B
C
(4) Then solder leads B and C.
A
B
C
SECTION 4
ADJUSTMENT
4.1 ADJUSTMENT PREPARATION
(1) This TV is adjusted by using REMOTE CONTROL UNIT.
(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
Colour Temperature Normal
4.5 BASIC OPERATION OF FACTORY MODE
4.5.1 HOW TO ENTER THE FACTORY MODE
(1) Press [INFORMATION] key and [MUTING] key on the
remote control unit simultaneously to enter the FACTORY
MODE SCREEN. (Fig.4-1)
4.5.2 HOW TO EXIT THE FACTORY MODE
Press the [OK] key to exit the factory mode.
FACTORY MODE SCREEN
Factory Menu
ADC Calibration
White Balance
Miscellaneous
Engineering Menu
Panel Select xxxxxxxxxxx
Factry Default
Model Name : xxxxxx
Software Version : xxxxxx
OTA Loader Version : xxxxxx
MCU Version : xxxxxx
System Version : xxxxxx
Kernel Version : xxxxxx
Boot Loader Version : xxxxxx
Update Date : xxxxxx
4.3 MEASURING INSTRUMENT AND FIXTURES
• Signal generator (Pattern generator)[PAL]
• Remote control unit
4.4 ADJUSTMENT ITEMS
VIDEO CIRCUIT
• WHITE BALANCE adjustment
4.5.4 FACTORY MODE SELECT KEY LOCATION
[Function/] key
Scrolling up / down the
setting value.
[MUTING] key +
[INFORMATION] key
Enter The Factry Mode.
[FUNCTION /] key
Select the setting item.
Fig.4-1
4.5.3 CHANGE AND MEMORY OF SETTING VALUE
SELECTION OF SETTING ITEM
• [FUNCTION /] key.
For scrolling up / down the setting items.
• [FUNCTION /] key.
For select the setting items.
CHANGE OF SETTING VALUE (DATA)
• [FUNCTION /] key.
For scrolling up / down the setting values.
MEMORY OF SETTING VALUE (DATA)
The setting value will be stored automatically when release the
REMOTE CONTROL UNIT keys.
(No.YA707<Rev.001>)1-13
4.6 ADJUSTMENT PROCEDURE
4.6.1 VIDEO CIRCUIT
Item
WHITE
BALANCE
Measuring
instrument
Test point Adjustment part Description
Remote
control unit
Signal
generator
FACTORY MODE SCREEN
Factory Menu
ADC Calibration
White Balance
Miscellaneous
Engineering Menu
Panel Select xxxxxxxxxxx
Factry Default
Model Name : xxxxxx
Software Version : xxxxxx
OTA Loader Version : xxxxxx
MCU Version : xxxxxx
System Version : xxxxxx
Kernel Version : xxxxxx
Boot Loader Version : xxxxxx
Update Date : xxxxxx
WHITE BALANCE MODE
White Balance
Color Temp Normal
R XX
G XX
B XX
[White Balance]
Normal R
Normal G
Normal B
(1) Set COLOUR TEMP. to "Normal".
(2) Enter the FACTRY MODE.
(3) Press [] / [] key on the remote control unit
simultaneously to select the White balance.
(4) Press [] key on the remote control unit
simultaneously to enter White balnce mode.
(5) Receive a PAL 75% all white signal.
(6) Adjust the setting values of <Normal R>,
<Normal G> and <Normal B> so that the
screen becomes maximum white.
NOTE:
When the normal mode is adjusted, other modes
(cool/ warm) are automatically adjusted.
1-14 (No.YA707<Rev.001>)
SECTION 5
TROUBLESHOOTING
5.1 SOFTWARE UPDATE PROCEDURE
In case of writing the software on the Main PWB that is not
contained the software, or in case of the software update is
required, please write the software by the following procedure.
5.1.1 REQUIRED EQUIPMENT
• PC (Equipped with an RS-232C TERMINAL)
• Writing tool (Download the data from JS-net.)
• Program data (Download the data from JS-net.)
• RS-232C JIG cable (Part number: HU-0130200004)
(Female to 3.5mm stereo mini plug cable)
NOTE:
Please confirm SMIS on the JVC Service Information Network
or confirm to your local JVC subsidiary / dealer for software
version.
5.1.2 PROGRAM DATA WRITING PROCEDURE
(7) Turn the power of the main unit OFF.
(8) Unzip Writing tool into your PC.
These 5 files will be unzipped in the folder.
(9) Unzip Program data into your PC.
(10) Connect PC and TV (service only port on rear side of your
TV) with RS-232C JIG cable.
(11) Click WDN4OAK.exe. You will see the following program.
(15) Click the "DownLoad" button to start downloading.
(16) You will see the downloading status bar.
(17) Turn on your TV.
(18) After you finish the downloading, the status bar will be dis-
appeared.
(19) During the download, TV will display a downloading status
OSD and it will be disappeared when you finish the downloading.
(20) Unplug the AC power and wait for a few seconds, then plug
in to the AC power.
(21) Go to the Main menu → TV Setting → Feature → System
Status. You can check the Software version before and after the downloading.
(12) Select the proper COM port to download Software from
your PC. (Default: COM1)
(13) To select hdf file, click the yellow folder button.
(14) See the below picture and double click correct hdf file.
(No.YA707<Rev.001>)1-15
Victor Company of Japan, Limited
Display Division 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan
(No.YA707<Rev.001>)
Printed in Japan
VSE
SCHEMATIC DIAGRAMS
INTEGRATED DIGITAL TERRESTRIAL/SATELLITE LCD TELEVISION
LT-42HB1BU/AX
DVD-ROM No.SML2009Q1
COPYRIGHT © 2009 Victor Company of Japan, Limited.
No.YA707<Rev.001>
2009/7
LT-42HB1BU
/AX
STANDARD CIRCUIT DIAGRAM
NOTE ON USING CIRCUIT DIAGRAMS
1.SAFETY
The components identified by the symbol and shading are
critical for safety. For continued safety replace safety ciritical
components only with manufactures recommended parts.
2.SPECIFIED VOLTAGE AND WAVEFORM VALUES
The voltage and waveform values have been measured under the
following conditions.
(1)Input signal : Colour bar signal
(2)Setting positions of
each knob/button and
variable resistor
(3)Internal resistance of tester
(4)Oscilloscope sweeping time
(5)Voltage values
Since the voltage values of signal circuit vary to some extent
according to adjustments, use them as reference values.
: Original setting position
when shipped
: DC 20kΩ/V
: H
: V
: Othters
: All DC voltage values
20µs / div
5ms / div
Sweeping time is
specified
3.INDICATION OF PARTS SYMBOL [EXAMPLE]
In the PW board
: R1209
R209
Type
No indication
MM
PP
MPP
MF
TF
BP
TAN
(3)Coils
No unit
Others
(4)Power Supply
Respective voltage values are indicated
(5)Test point
: Test point
(6)Connecting method
: Ceramic capacitor
: Metalized mylar capacitor
: Polypropylene capacitor
: Metalized polypropylene capacitor
: Metalized film capacitor
: Thin film capacitor
: Bipolar electrolytic capacitor
: Tantalum capacitor
: [µH]
: As specified
: B1
: 9V
: Connector
: Receptacle
: Only test point display
: Wrapping or soldering
: B2 (12V
: 5V
)
4.INDICATIONS ON THE CIRCUIT DIAGRAM
(1)Resistors
Resistance value
No unit : [Ω]
K
M
Rated allowable power
No indication : 1/16 [W]
Others : As specified
Type
No indication
OMR
MFR
MPR
UNFR
FR
Composition resistor 1/2 [W] is specified as 1/2S or Comp.
(2)Capacitors
Capacitance value
1 or higher : [pF]
less than 1
Withstand voltage
No indication : DC50[V]
Others : DC withstand voltage [V]
AC indicated
Electrolytic Capacitors
47/50[Example]: Capacitance value [µF]/withstand voltage[V]
: [kΩ]
: [MΩ]
: Carbon resistor
: Oxide metal film resistor
: Metal film resistor
: Metal plate resistor
: Uninflammable resistor
: Fusible resistor
: [µF]
: AC withstand voltage [V]
(7)Ground symbol
: LIVE side ground
: ISOLATED(NEUTRAL) side ground
: EARTH ground
: DIGITAL ground
5.NOTE FOR REPAIRING SERVICE
This model's power circuit is partly different in the GND. The
difference of the GND is shown by the LIVE : ( ) side GND and the
ISOLATED(NEUTRAL) : ( ) side GND. Therefore, care must be
taken for the following points.
(1)Do not touch the LIVE side GND or the LIVE side GND and the
ISOLATED(NEUTRAL) side GND simultaneously. if the above
caution is not respected, an electric shock may be caused.
Therefore, make sure that the power cord is surely removed from
the receptacle when, for example, the chassis is pulled out.
(2)Do not short between the LIVE side GND and ISOLATED(NEUTRAL
side GND or never measure with a measuring apparatus measure
with a measuring apparatus ( oscilloscope, etc.) the LIVE side GND
and ISOLATED(NEUTRAL) side GND at the same time.
If the above precaution is not respected, a fuse or any parts will be broken.
Since the circuit diagram is a standard one, the circuit and
circuit constants may be subject to change for improvement
without any notice.
NOTE
Due improvement in performance, some part numbers show
in the circuit diagram may not agree with those indicated in
the part list.
When ordering parts, please use the numbers that appear
in the Parts List.
)
(No.YA707<Rev.001>)2-1
CONTENTS
SEMICONDUCTOR SHAPES ......................................................................2-2
WIRING DIAGRAM .......................................................................................2-3
BLOCK DIAGRAM ........................................................................................2-5
BLOCK DIAGRAM [MPEG4 BLOCK].........................................................2-7
CIRCUIT DIAGRAMS ...................................................................................2-9
MAIN PWB CIRCUIT DIAGRAM ................................................................................................................. 2-9
IR PWB CIRCUIT DIAGRAM .................................................................................................................. 2-101
KEY PWB CIRCUIT DIAGRAM............................................................................................................... 2-103
LED PWB CIRCUIT DIAGRAM............................................................................................................... 2-105
PATTERN DIAGRAMS ............................................................................ 2-107
MAIN PWB P ATTERN ............................................................................................................................ 2-107
IR PWB P ATTERN.................................................................................................................................. 2-111
KEY PWB P ATTERN .............................................................................................................................. 2-111
LED PWB P ATTERN .............................................................................................................................. 2-111
USING P.W. BOARD
P.W.B ASS㵭Y name LT-42HB1BU/AX
MAIN P.W. BOARD
IR P.W. BOARD
KEY P.W. BOARD
LED P.W. BOARD
HU-71100006
HU-72200004
HU-72200003
HU-72200017
SEMICONDUCTOR SHAPES
TRANSISTOR
BOTTOM VIEW FRONT VIEW TOP VIEW
CHIP TR
E
C
B
ECB
IC
BOTTOM VIEW FRONT VIEW TOP VIEW
OUT
E
IN
IN OUTE
B
(G)E(S)C(D)
1 N
ECB
ECB
1
1 N
C
BE
N
CHIP IC
N
1
2-2(No.YA707<Rev.001>)
TOP VIEW
1
N
2-4(No.YA707<Rev.001>)(No.YA707<Rev.001>)2-3
FRONT
LED PWB
JP3
1
5
JP2
5
1
TOP
TOP
TOP
TOP
POWER UNIT
IR PWB
KEY PWB
LCD PANEL UNIT
[INVERTER PWB]
LCD PANEL UNIT
[LCD CONTROL PWB]
5
1
6
1
24
1
1
24
CN3
CN1
JP2
JP3
JP761
JP1
31
1
JP642
1
6
JP1
1
41
JP4
1
4
1
15
CN2
N
L
JP641
F1
250V/6.3A
AC INLET
SPEAKER(R)SPEAKER(L)
MAIN PWB
SATELLITE TUNER
TERRESTRIAL TUNER
WIRING DIAGRAM
(No.YA707<Rev.001>)2-5 2-6(No.YA707<Rev.001>)
KEY PWB
&
LED PWB
U82
MICOM CTRL
U102
SCALER & MPEG2
U321
HDMI SWITCH
POWER UNIT
UD321, UD322
U181
DDR2
PC
RS232
HDMI
HDMI
HDMI
SPEAKER(L)
SPEAKER(R)
HEADPHONE
AUDIO
PC
JTAG
ILX232
U831
TA_A/RA_A
LCD PANEL
+7V
+12V
PC2
JTAG
PC4
PC5
LS
LS
PC3
HOST_A[1:23]
HOST_D[0:15]
USB_FLAG
HDMIA TDMS IN
HDMIA_I2C
HDMIA_CEC
HDMIA_HPD
HDMIB TDMS IN
HDMIB_HPD
HDMIB_I2C
AHS, AVS
VGA_R,VGA_G,VGA_B
S0_SCL/SDA
TA_A/RA_A
IR_IN
KEY_ADC1
KEY_ADC2
LED_B
LED_R
SCART_ID1
SCART_ID2
PWR_STB
PWM_DIM
A_DIM
BKLT_EN
P_PWM_DIM
P_A_DIM
P_BKLT_EN
+24V
+5V_STB
+5V
XTAL
Y961
M_I2C
CEC_A
ID1
ID2
A_RESET
FRC_RST
LPM_RST_N
HeaderHeader
KIA7042AF
PB5,6,7,RESETn
CLK IN/OUT
4Pin Con.
UART0_TXD/RXD
UART1_TXD/RXD
TXD/RXD
PD0,PD1
PC0,PC1
PB2
PA4
PA5
INT_OUT
FLI_I2C1
*I2C ADDR : 0xA2/3
UART0
UART1
CLK IN/OUT
PWM0
I2C1
IRDATA
LBADC_IN1
LBADC_IN2
EJTAG
DDR MEM
CTL. BUS
ROM MEM
CTL. BUS
BUS BUFFER
HOST_D[0:15]
HOST_A[1:24]
EMI ADDR[1:23]
/EMI DATA[0:15]
FLASH MEMORY
MPEG4 (H264)
BLOCK
(TUNER & STi7103)
AUDO_SPDIF_OUT
I2S_OUT
AUDIO_MUTE
HEAD_OUT_L/R
GPIO134
TNR_SIF
SV4P
AUD_IN_L5/R5
SV3P
B4P,A4P
DDR memory
DDRA[0:12]
/DDRDQ[0:31]
PD6
PA1
PA0
PA2
PA3
PA5
PA6
PB4
Y81
XTAL
* Development Only
IR_IN
KEY_ADC1
KEY_ADC2
PWM3
PWM2
PBIAS
PPWR
LVTX_ODD
LVTX_EVN
RESET_N
UART1_CTS
UART1_RTS
USB2.0 HOST
USB_PWREN
* FRC Option
FLI_I2C1
FRC_RST
FRC_RST
PANEL_PWR
LVDS_OUT
PWM_DIM
A_DIM
BKLT_EN
LPM_RST_N
RESETn_MAIN
FRC_RST
USB_HOST
+5V
+5V_USB
USF-T
TMDS_A
HDMI_SCL/SDA
FLI_I2C1
CEC_A
HPDA
VGA_HS/VS 74HC14 HS/VS
EEPROM
SCART1_RI/LI
PC_R/G/B
VGA_SDA/SCL
SCART_ID1
SCART1_R/G/B/CVBS
SCART1_FB
SCART1_RI/LI
SCART1_CVBSO
SC1_R/L_OUT_O
SCART2_CVBSO
SC2_R/L_OUT_O
SC1_R/L_OUT_O
SC2_R/L_OUT_O
DTT_CVBS
RF_CVBS
SCART1_CVBSO
SCART2_CVBSO
SCART_ID2
SCART2_R/G/B/CVBS
SCART2_FB
SCART2_RI/LI
SCART1_RO/LO
SCART2_RO/LO
SCART2_CVBS_OUT
YPbPr
Component_R/L
SVHS_Y/C
AV_CVBS
AL/AR_CVBS
RF_CVBS
SIF
HEADPHONE_ID
HPO_L/R
AMP_R-
AMP_R+
AMP_L-
AMP_L+
A_RESET
FLI_I2C1
I2S_OUT
AUDO_MUTE
HP_LO/RO
U761
U764
Digital Audio AMP
OP AMP
U582
EEPROM
AUD_IN_L3/R3
LBADC_IN4
A1P,B1P,C1P/SV1P
SCART_FB
AUD_OUT1R/L
AUD_IN_L1/R1
AUD_OUT2R/L
VOUT
LBADC_IN5
A2P,B2P,C2P/SV2P
VXO_D7
AUD_IN_L2/R2
A3P,B3P,C3P
AUD_IN_L4/R4
SPDIF
DIGITAL AUDIO
SCART2
SCART1
CEC
CEC
CEC
TMDS 1
HPD1
TMDS 2
HPD2
TMDS 3
HPD3
EXT4
EXT3
EXT1
EXT5
EXT6
EXT7
EXT2
PC IN
USB IN
U381,U383
VIDEO
SWITCH
U1541,U1581
OP AMP
U382
VIDEO FILTER
U114
USB SWITCH
SERVICE PORT
BLOCK DIAGRAM
2-8(No.YA707<Rev.001>)(No.YA707<Rev.001>)2-7
TX
RX
R
CLK/BLANK/HSYNC/VSYNC
DVO[0..23]
I2S / SPDIF
I2S / SPDIF
VXI
CONT
DATA
UART1
CVBS
ROM MEM
CTL. BUS
POD_CTL.
STI7103 System DDR memory
EMI ADDR[1:23]
/EMI DATA[0:15]
NOR FLASH
PC28F320J3D75/BGA
(32Mbit(4Mx8))
Douglas DEMO B/D 256Mbit
SLMI DDRA[0:12]
/SLMI DDRDQ[0:31]
EMI ADDR[1:23]
/EMI DATA[0:15]
CIO TS
Cl contro
I2S / SPDIF
DVO
CONT
DATA
UART1
CVBS
RF_IN1
SIF
RF_CVBS
TUNER0_I2C
TNR0_IF+/-
DEV_/RESET
TUNER0_I2C
DEV_/RESET
TNR1_IF+/-
TUNER1_I2C
LNB_OUT
RF_IN1
FLI_I2C0
TS0
TS
TS
TS_SEL0
FLI_I2C0
DEV_/RESET
FLI_I2C0
nTS_SEL0
22K_TONE
U961
DEMOD
U921 TERRESTRIAL TUNER
U1021 SATELLITE TUNER
U51
BCM4506
U1051
A8293(LNB)
CII TS
POD_DET
nTS_SEL1
TS Selector
MUX TS
TS_SEL1
DTT_CVBS
U102
SCALER
U1131
MPEG CPU
JP221
CI SLOT
Buffer&SW
HOST_A[1:2]/HOST_D[0:7]
POD_CTL
POD_DET
TSIN0
DTT_CVBS
TS_Parallel
[POD]
Inputs
FLI_I2C0 I2C0
GP0132
TS_SEL0
TS_SEL1
UD1261, UD1262
DDR SDRAM
BLOCK DIAGRAM [MPEG4 BLOCK]
(No.YA707<Rev.001>)2-9 2-10(No.YA707<Rev.001>)
MAIN PWB ASS'Y(1/46)
[TERRESTRIAL TUNER]
HU-71100006
hb1_main_0612_24/48_0.0
1
1
2
2
3
3
4
4
5
5
6
6
A A
B B
C C
D D
DTT_IF_NARROW-
DTT_IF_NARROW+
+5VTA
+5VT_ANT
+5VTA
+5VTA +3V3DT
+5VTA +5VT_ANT
+3V3DT
RF_CVBS
SIF
TUNER0_SCL
TUNER0_AGC
TUNER0_SDA
ANT_PWR_EN
ANT_PWR_CHK
DTT_IF_NARROW-
DTT_IF_NARROW+
All location are from 921 to 960
IIC AS : Tuner : 0xC0h
Analog Demod : 0x86h
Antenna Current Limiting Circuit (100mA Limiting)
Antenna Power Short Protection Circuit
IF ANT_PWR_CTRL is L
--> ANT_PWR_EN L
Fault Flag (Output):
Active-low, open-drain output.
Indicates overcurrent or
thermal shutdown conditions
ANT_PWR_EN
LOW
HIGH
ON
+5V_ANT
OFF
Current limit threshold is determined by
ILIMIT = 230V / RSET,
where : 154 < RSET < 2.29k
C935
4R7p/50V/1005
R923 101/1005
C926
102p/50V/1005
Q924
FDV301N_NL
1
32
L923
BLM18PG300SN1D
C934
104p/16V/1005
C933
OPEN-330p/1005
C925
104p/16V/1005
220uF/16V/MVK/S
C921
R940 201/1005
C936
220p/50V/1005
R926
000/1005
C931
220uF/16V/MVK/S
RF IN
U921
FQD1116AME/BH
RF PIN IN/OUT(OPTION)
1
ANT_PWR2GND3NC4RF_AGC5GND6VP_TUN_+5v7VT8GND9NC10AS11SCL12SDA13REF14IF-AGC15DIF116DIF217WIF OUT/NC18+5V IF192nd IF SOUND/LOW DIG IF1
20
2nd IF SOUND/LOW DIG IF2
21NC22
AS_IF23CVBS
24
GND
25
GND
26
GND
27
GND
28
R939 201/1005
R925
121/1005
R921
562/1005
R930
562/1005
R927 222/1005
C932
OPEN-330p/1005
R929
121/1005
C923
102p/50V/1005
C929
104p/16V/1005
C927
220uF/16V/MVK/S
U922
POWER SW MIC2544-1YMM
EN
1
FLG
2
NC4ILIM
5
OUT
6
IN
7
OUT
8
GND
3
R924
103/1005
L922
BLM18PG300SN1D
C930
102p/50V/1005
Q925
FDV301N_NL
1
32
C922
104p/16V/1005
R933 000/1005
L921
BLM18PG300SN1D
R922 330/1005
R934 000/1005
R932 000/1005
R931 330/1005
R928
750/F/1005
MAIN PWB(13/46)
MAIN PWB(26/46)
MAIN PWB(13/46)
MAIN PWB(26/46)
MAIN PWB(26/46)
MAIN PWB(7/46)
CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAM (1/46) [TERRESTRIAL TUNER]
2-12(No.YA707<Rev.001>)(No.YA707<Rev.001>)2-11
MAIN PWB ASS'Y(2/46)
[SATELLITE TUNER]
HU-71100006
hb1_main_0612_26/48_0.0
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
TS_DO0
TS1_DATA5
TS1_DATA6
TS1_DATA7
TS1_DATA4
TS1_DATA3
TS1_DATA2
TS1_DATA1
TS1_DATA0TS_DO0
2.5VS_BCM4505
+5V_STUNER
+3.3V_STUNER
A1V2S_BCM4505
22K_TONE
FLI_SCL_1
FLI_SDA_1
LNB_OUT
TS1_CLK
TS1_VLD
TS1_STR
TS1_DATA[7..0]
CH_RESET
All location are from 1021 to 1050
*I2C Address : 0xD2
Must be pull-down register because gpio default
high. then default voltage is about 0.3V
L1021
BLM18PG300SN1D
L1024
BLM18PG300SN1D
R1021
222/1005
CD1021
OPEN-AVL26K05121
1
1
2
2
2X12 Connector
SHIELD CAN
BCM4505
U51
LNB-IN
LNB-OUT (option)
HSN-5000HS/DTV
1X8 connector
U1021
LNB_A1GND23.3V3GND4HS0_VALID5HS0_D06HS0_CLK7HS0_SYNC8GND9GND10IRQ011NC12SCL13nRESET014GND15GND162.5V17SDA185V1922K_TONE020GND21GND221.2V23LNB_B
24
HS0_D7
25
HS0_D6
26
HS0_D5
27
HS0_D4
28
HS0_D3
29
HS0_D2
30
HS0_D1
31
GND
32
220uF/16V/MVK/S
C1026
C1024
104p/16V/1005
R1023
330/1005
JP230
OPEN_DK-504-039(F-CON)
GND
1
GND
2
GND
3
GND
4
C1023
220uF/16V/MVK/S
C1032
220uF/16V/MVK/S
C1021
102p/50V/1005
C1027
104p/16V/1005
L1023
BLM18PG300SN1D
R1022
330/1005
L1022
BLM18PG300SN1D
C1031
104p/16V/1005
C1022
104p/16V/1005
C1025
102p/50V/1005
C1030
102p/50V/1005
C1028
102p/50V/1005
C1029
220uF/16V/MVK/S
MAIN PWB(27/46)
MAIN PWB(24/46)
MAIN PWB(6/46),(26/46),(27/46)
MAIN PWB(7/46)
MAIN PWB(27/46)
MAIN PWB(24/46)
MAIN PWB CIRCUIT DIAGRAM (2/46) [SATELLITE TUNER]
(No.YA707<Rev.001>)2-13 2-14(No.YA707<Rev.001>)
MAIN PWB ASS'Y(3/46)
[Power and Interface Connectors]
HU-71100006
hb1_main_0612_1/48_0.0
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
SMPS_ON
IR
LEDR
LEDB
LEDB
LEDR
BL_EN_O
ANA_DIM
SMPS_ON
ANA_DIM
PWM_DIM_IN
BLT_EN
BL_EN_O
+5V
+12V
+5V4STB
+5V4STB
+5VSTB
+5VSTB
+5VSTB
+5VSTB
+5V+5V
STBY_EN
IR_IN
KEY_ADC2
KEY_ADC1
LED_B
LED_R
AC_DETECT
PWM_DIM_IN
A_DIM
P_DIM
PWM_DIM_IN
PWM_DIM_OUT
BLT_EN
AUO_Panel
MAX.3.5A
MAX.3A
MAX.500mA
Power on : L
Power off : H
FRONT BLUE LED
All location are from 1 to 20
L : ON
H : OFF
L : ON
H : OFF
[+5V]
USB : 500mA
CAM : 500mA
PANEL : 1200mA(Option)
[+12V]
AMP : 1500mA
QPSK : 400mA
PANEL : 800mA
[+5.8V]
MICOM : 9mA
RS232 : 10mA
TUNER : 220mA
Backlight on : L
Backlight off : H
R3
103/1005
C1
100uF/25V/BXE/S
Q3
MMBT4403
1
23
R5 OPEN-000/1005
R14
301/3216
R21
103/1005
C5
OPEN-104p/16V/1005
R2
102/1005
R8
103/1005
2mm
JP1
SMW200-24C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
2mm
JP4
53014-0410
2mm
4
3
2
1
R7 102/1005
R12
103/1005
2.5mm
JP2
SMW250-05
2
3
4
1
5
R19
102/1005
R18
472/1005
C3
470uF/16V/MVK/S
R17
472/1005
L3
BLM21PG600SN1D
C8
104p/16V/1005
2.5mm
JP3
SMW250-06
6
5
4
3
2
1
L4
BLM18PG300SN1D
R11
OPEN-332/1005
L1
BLM41PG600SN1L
R1
472/1005
C7
104p/50V
Q1
MMBT4401
1
23
C4
104p/50V
Q2
MMBT4403
1
23
C2
104p/50V
C6
100uF/25V/BXE/S
C9
106p/10V/2012
Q5
MMBT4401
1
23
L2
BLM41PG600SN1L
R9
301/3216
R10 OPEN-102/1005
POWER UNIT
CN1
KEY PWB
JP2
IR PWB
JP1
LED PWB
JP3
MAIN PWB
(4/46),(5/46),(22/46),(43/46)
MAIN PWB(7/46)
MAIN PWB(5/46)
MAIN PWB(14/46),(19/46)
MAIN PWB(14/46),(19/46)
MAIN PWB(5/46)
MAIN PWB(5/46)
MAIN PWB(6/46)
MAIN PWB(5/46)
MAIN PWB CIRCUIT DIAGRAM (3/46) [Power and Interface Connectors]
2-16(No.YA707<Rev.001>)(No.YA707<Rev.001>)2-15
MAIN PWB ASS'Y(4/46)
[Power Regulation]
HU-71100006
hb1_main_0612_2/48_0.0
1
1
2
2
3
3
4
4
5
5
6
6
A A
B B
C C
D D
+3V3
+5V
+1V8
+3V3 +3V3_A
VDDR_MEM
+1V8
DDR_VRF
+3V3H
+5VSTB
+5V
+1V2
+5V
+3V3_D
+3V3_D
+5V4STB
+5V4STB
+3V3
+5V
AC_DETECT
[Douglas Core]
+1.216V,
Max.1634mA
[Douglas DDR]
+1.816V,
Max.781mA
3V3 Power Branch
1V8 Power Branch
Max.3A
All location are from 30 to 80
DGND GND_A
MAX 29mA
STAND-BY POWER
Vout=0.8V(R1+R2)/R2
+3.3V
MAX 642mA
Vout=0.8V(R1+R2)/R2
R1
R1
R2
R2
GND_D
MAX 1.5A
R1
R2
Vout = 0.925 x (1+R1/R2)
+3.366V, Max.1.3A
NORMAL POWER
MAX: 3A
C80
105p/25V
R45
4021/F/1005
L35
BLM18PG300SN1D
L31
4.7uH/SPC7040-4R7/3.5A
C78
OPEN-561p/1005
C51 220uF/16V/MVK/S
C59
105p/25V
C48
104p/16V/1005
U32
MP2121DQ
BS
5
FB
1
SW
3
IN
4
IN
7
POK
6
SW
8
GND9GND
2
EN/SYNC
10
GND-PAD
11
C75
822p/25V/1005
R35
102/F/1005
TP35
PCB_TP10
1
R33
104/1005
C55
104p/16V/1005
L32
SPC6025-1R0M
C76
OPEN-106p/10V/2012
C45 104p/16V/1005
C42
106p/10V/2012
C54
106p/10V/2012
C92
OPEN-104p/16V/1005
R50
104/1005
R36
593/F/1005
U34
LD29150PT/P-PAK 5P
/INH1VIN2GND3VOUT4ADJ5GND
6
R38
102/F/1005
C74
220uF/16V/MVK/S
R37
104/1005
C62
100uF/25V/BXE/S
U31
MP2307
BS
1
IN
2
SW
3
GND
4
FB
5
COMP
6
EN
7
SS
8
GND_P
9
D31
OPEN-LL4148
12
C64
104p/16V/1005
C44
104p/16V/1005
C69
106p/10V/2012
TP36
PCB_TP10
1
R34
753/F/1005
C77
104p/16V/1005
TP38
PCB_TP10
1
C71
106p/10V/2012
TP32
PCB_TP10
1
R41
103/F/1005
C68
104p/16V/1005
C61
226p/6.3V/2012
R47
OPEN-104/1005
104p/16V/1005
C34
C73
226p/6.3V/2012
C72
226p/6.3V/2012
U36
OPEN-ASM811REUSF-T
GND
1
RESET
2
VCC
4
MR
3
C41
106p/10V/2012
R43
243/F/1005
C46
104p/16V/1005
C49 104p/16V/1005
C67
106p/10V/2012
C50
335p/10V/2012
L34
BLM18PG300SN1D
C31
104p/16V/1005
D30
OPEN-B340A
12
TP39
PCB_TP10
1
C60
104p/16V/1005
TP33
PCB_TP10
1
R44
912/F/1005
R46
OPEN-103/1005
L33
BLM18PG300SN1D
R48
104/1005
C65
OPEN-105p/16V/1005
C57
100uF/25V/BXE/S
C63
106p/10V/2012
C47 220uF/16V/MVK/S
C79
103p/50V/1005
TP37
PCB_TP10
1
C58
OPEN-105p/16V/1005
R32
6043/F/1005
104p/16V/1005
C53
R49
104/1005
R40
1692/F/1005
C52
106p/10V/2012
R39
000/1005
R31
304/F/1005
U35 RT9167-50PB
VOUT
5
BP
4
EN
3
GND
2
VIN
1
R42
104/1005
TP34
PCB_TP10
1
R51
OPEN-104/1005
C43
103p/50V/1005
R52
750/F/1005
C30
105p/25V
C66
OPEN-102p/50V/1005
U33
RT9018B25PSP
EN
2
VDD
4
VIN
3
NC
5
PGOOD
1
VOUT
6
ADJ
7
GND
8
TAP
9
C70
103p/50V/1005
C56
104p/16V/1005
TP31
PCB_TP10
1
TP17
PCB_TP10
1
MAIN PWB
(3/46),(5/46),(22/46),(43/46)
MAIN PWB CIRCUIT DIAGRAM (4/46) [Power Regulation]
(No.YA707<Rev.001>)2-17 2-18(No.YA707<Rev.001>)
MAIN PWB ASS'Y(5/46)
[MICRO CTRL]
HU-71100006
hb1_main_0612_3/48_0.0
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
KEY_ADC2
KEY_ADC1
MISO
SCK
MOSI
RESETn
MOSI
RESETn
SCK
MISO
RESETn
M_SDA
M_SCL
MOD2_ID
MOD1_ID
M_RST_N
INT_OUT
M_RST_N
INT_OUT
MOD2_IDMOD1_ID
MOD3_ID
MOD3_ID
+5VSTB +5VSTB
+3V3_A
+5VSTB
+5VSTB +5VSTB
+5VSTB
+5VSTB
+5VSTB +5VSTB
+5VSTB
+3V3_A
+5VSTB
+5VSTB+5VSTB +5VSTB
LED_R
LED_B
FLI_SDA_0
KEY_ADC2
IR_IN
STBY_EN
KEY_ADC1
A_RESET
AC_DETECT
CEC_A
TA
RA
FLI_SCL_0
LPM_RST_N
FLI_INT
SC_MUTE
M_SDA
M_SCL
CEC_O
M_RST_N
PA5
UART0(to RS232)
PA4
PA3
UART0(to RS232)
PB7
PA2
PB1
PB0
PA7
PA6
PA0
PA1
KEY_ADC2
PB2
PB3
PB4
PB5
PB6
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
KEY_ADC1
LED_R
LED_B
FLI_SCL1
FLI_SDA1
A_RESET
AC_DETECT
Front Key ADC2
HDD Recording LED
Display LED
Front Key ADC1
CEC_A
STBY_EN
MOSI
MISO
SCK
RA
TA
IR_IN IR Input
AMP Reset Control(to AMP)
SMPS AC Detect
I2C(to Douglas)
I2C(to Douglas)
HDMI CEC Control
Stand-by ON/OFF
JTAG
JTAG
JTAG
System Reset
M_RST_N Douglas Chip Reset
All location are from 81 to 110
L : Normal
H : Reset
INT_OUT Douglas Interrupt
Scart_Mute Scart Audio Output Mute
MOD2_ID
MOD1_ID
Model_Detect
Model_Detect
R88
472/1005
R104
Open_103/1005
Y81
16MHZ/20pF/SMD
12
R81
103/1005
C85
104p/16V/1005
R89 330/1005
R100
103/1005
R105
103/1005
R87
472/1005
R97 162/1005
C90
104p/16V/1005
R84 101/1005
C84
104p/16V/1005
R106
Open_103/1005
Q83
MMBT4401
1
23
R94 101/1005
C87
OPEN-103p/50V/1005
C86
104p/16V/1005
C88
200p/50V/1005
R107
103/1005
R108
OPEN-103/1005
S81
OPEN-JTP1127WEM
1
2
34
R82
101/1005
R91 101/1005
R93
OPEN_103/1005
Q81
FDV301N_NL
1
32
C83
106p/10V/2012
C81
OPEN-104p/16V/1005
C82
104p/16V/1005
U81
OPEN-KIA7042AF
VCC1GND2OUT3GND
4
U82
ATMEGA324P-20AU
(ADC0) PA0
37
(ADC1) PA1
36
(ADC2) PA2
35
(ADC3) PA3
34
(ADC4) PA4
33
(ADC5) PA5
32
(ADC6) PA6
31
(ADC7) PA7
30
(SCL) PC0
19
(SDA) PC1
20
(TCK) PC2
21
(TMS) PC3
22
(TDO) PC4
23
(TDI) PC5
24
(TOSC1) PC6
25
(TOSC2) PC7
26
PB0 (XCK/T0)
40
PB1 (T1)
41
PB2 (AIN0/INT2)
42
PB3 (AIN1/OC0)
43
PB4 (SS)
44
PB5 (MOSI)
1
PB6 (MISO)
2
PB7 (SCK)
3
PD0 (RXD)
9
PD1 (TXD)
10
PD2 (INT0)
11
PD3 (INT1)
12
PD4 (OC1B)
13
PD5 (OC1A)
14
PD6 (ICP)
15
PD7 (OC2)
16
XTAL2
7
XTAL1
8
AREF
29
AVCC
27
RESETn
4
VCC1
5
VCC2
17
VCC3
38
GND1
6
GND2
18
GND3
28
GND4
39
Q82
FDV301N_NL
1
32
R103
183/F/1005
JP81
OPEN-HPH-DS06-02
12
34
56
C91
104p/16V/1005
R83
OPEN_103/1005
R98 162/1005
R101
102/1005
R95 101/1005
R102 103/1005
C89
200p/50V/1005
R90 330/1005
R99
103/1005
R109
103/1005
R96 000/1005
MAIN PWB(23/46)
MAIN PWB(40/46),(42/46)
MAIN PWB(42/46)
MAIN PWB(43/46)
MAIN PWB(3/46)
MAIN PWB(3/46)
MAIN PWB(3/46)
MAIN PWB(6/46)
MAIN PWB(37/46)
MAIN PWB(22/46)
MAIN PWB(39/46)
MAIN PWB
(6/46),(17/46),(22/46),(40/46)
MAIN PWB
(3/46),(4/46),(22/46),(23/46)
MAIN PWB CIRCUIT DIAGRAM (5/46) [MICRO CTRL]
2-20(No.YA707<Rev.001>)(No.YA707<Rev.001>)2-19
MAIN PWB ASS'Y(6/46)
[USB,I2C,JTAG]
HU-71100006
hb1_main_0612_4/48_0.0
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
USB_D0+
USB_D0-
UART0_RX
UART0_TX
UART1_TX
UART1_RX
UART0_TX
UART0_RX
DINT
TRST#
EJTAG_RST#
TDI
TDO
TMS
FLI_SCL_0
FLI_SDA_0
TCK
WP
NVRAM_WP
NVRAM_WP
FLI_SCL_0
FLI_SDA_0
FLI_SDA_1
FLI_SCL_1
+5V_USB
+5V
+1V2
+5V_USB
+3V3_A
+3V3_A
+3V3_A
+3V3_A
+3V3_A +3V3_A
+3V3_A
+3V3_A +3V3_A
+3V3_A
+5V
+5V
P_DIM
A_DIM
CI_PWR
LPM_RST_N
FLI_INT
PWR_/RESET
BLT_EN
FRC_/RST
FLI_SDA_0
FLI_SCL_0
FLI_SDA_1
FLI_SCL_1
UART1_RX
UART1_TX
UART0_RX
UART0_TX
EJTAG
All location are from 111 to 160
EEPROM
Address:0xA4/A5
UART0 : PC Display Debug message
UART1 : G-Probe application run at PC
Reset Threshole
: +3.08V
NVRAM_WP : H = Enable write
NVRAM_WP : L = Disable write
Active high
STi7103_UART
C129
100uF/16V/MVK/S
C116
104p/16V/1005
R126
102/1005
C112
OPEN-680p/50V/1005
C123
104p/16V/1005
C122
104p/16V/1005
R137
103/1005
R119 330/1005
R128
622/F/1005
R127
103/1005
R129 OPEN-472/1005
R111
OPEN-104/1005
R135
OPEN-472/1005
TP112
PCB_TP08
1
C119
105p/16V/1005
C126
5R0p/50V/1005
C125
5R0p/50V/1005
C120
104p/16V/1005
C127
106p/10V/2012
TP111
PCB_TP08
1
R124
OPEN-000
PR111 103*4/1005
18
27
36
45
R112 000/1005
R125 OPEN-200/1005
C114
270p/50V/1005
RV111
OPEN-AVRL161A1R1NTB
C113
270p/50V/1005
U111
OPEN-ASM811REUSF-T
GND
1
RESET
2
VCC
4
MR
3
R121 330/1005
C124
106p/10V/2012
L111
BLM18PG300SN1D
Q111
MMBT4401
1
23
2mm
JP113
OPEN-53014-0410
4
3
2
1
R133
OPEN-153/1005
U113
24LC256
A0
1
A1
2
A2
3
VSS
4
VCC
8
SCL
6
SDA
5
WP
7
R115 222/1005
R131
103/1005
R116 222/1005
R120 330/1005
R134
OPEN-153/1005
R138
103/1005
R139
000/1005
C121
104p/16V/1005
L113
ACM2012H-900
3
21
4
R113 222/1005
L114
BLM21PG600SN1D
Y111
19.6608MHZ/
20PF/SX-1/SMD
12
R132
103/1005
R118 330/1005
R136
OPEN-472/1005
JP111
OPEN-2110-DS14-G
1
3
5
7
9
11
13 14
12
10
8
6
4
2
RV112
OPEN-AVRL161A1R1NTB
R122 000/1005
R123 102/1005
JP112
KJA-UB-4-0004
VBUS
1
D-
2
D+
3
GND
4
1
2
3
4
SGND
5
SGND
6
C118
47uF/16V/MVK/S
TP113
PCB_TP08
1
R117 222/1005
R130 OPEN-472/1005
C115 200p/50V/1005
L112
BLM18PG300SN1D
U114
R5523N USB HIGH-SIDE POWER SWITCH
EN
1
GND2FLG
3
IN
4
OUT
5
C117
104p/16V/1005
C128
104p/16V/1005
U102G
FLI10620H
USBPHY_VRES
AG20
USB_FLAG
C29
USBPHY_PADM
AH20
USBPHY_PADP
AJ20
PWM0_GPIO4_/INT4
D13
PWM1_GPIO5_/INT5
C13
PWM2_GPIO6
B13
PWM3
A13
CLKOUT
E12
TESTMODE0
C27
TESTMODE1
C26
TRST
B26
TDO
A27
TDI
B27
TMS
A28
TCK
B28
EJ_RST_N
A29
EJ_DINT
B29
2WIRE_M0_SDA
F20
2WIRE_M0_SCL
E20
2WIRE_M1_SCL_UART2_RX
D20
2WIRE_M1_SDA_UART2_TX
D21
UART0_RXD
A19
UART0_TXD
B19
UART1_TXD
B20
UART1_RXD
A20
UART1_RTS
C20
UART1_CTS
C19
RESET_N
D23
REF_CLK
A22
XTAL_IN
A23
OBUFC_CLK
F21
DFSYNC_IN_OUT_GPIO8
E13
USB_GND
AD20
USB_AVDD33
AH19
USB_AVDD33
AF20
USB_GND
AF19
USB_GND
AJ19
USB_AVDD12
AE20
USB_AVDD33
AG19
USB_PWREN
C28
OTP_VDD33
A26
S111
OPEN-JTP1127WEM
12
34
R114
OPEN-104/1005
MAIN PWB(2/46),(26/46),(27/46)
MAIN PWB(36/46)
MAIN PWB(23/46)
MAIN PWB(3/46)
MAIN PWB(5/46),(17/46),(22/46),(40/46)
MAIN PWB(17/46)
MAIN PWB(10/46)
MAIN PWB(5/46)
MAIN PWB(5/46)
MAIN PWB(8/46)
MAIN PWB(3/46)
MAIN PWB CIRCUIT DIAGRAM (6/46) [USB,I2C,JTAG]
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