Service Manual
Model #: VIZIO
VS420LF1A_LGD / VW42L
FHDTV10A_LGD-WUE-SAA1
V, Inc
320A Kalmus Drive Costa Mesa, CA 92626
TEL : +714-668-0588 FAX :+714-668-9099
Top Confidential
Table of Contents
CONTENTS PAGE
Sections
1. Features 1-1
2. Specifications 2-1
3. On Screen Display 3-1
4. Factory Preset Timings
5. Pin Assignment
4-1
5-1
6. Main Board I/O Connections 6-1
7. Theory of Circuit Operation 7-1
8. Waveforms 8-1
9. Trouble Shooting 9-1
10. Block Diagram 10-1
11. Spare parts list 11-1
12. Complete Parts List 12-1
Appendix
1. Main Board Circuit Diagram
2. Main Board PCB Layout
3. Assembly Explosion Drawing
VS420LF1A_LGD/VW42L FHDTV10A_LGD Service Manual
VINC. Service Manual
VS420LF1A_LGD/VW42L FHDTV10A_LGD
COPYRIGHT © 2000 V, INC. ALL RIGHTS RESERVED.
IBM and IBM products are registered trademarks of International Business Machines Corporation.
Macintosh and Power Macintosh are registered trademarks of Apple Computer, Inc.
VINC and VINC products are registered trademarks of V, Inc.
VESA, EDID, DPMS and DDC are registered trademarks of Video Electronics Standards
Association (VESA).
Energy Star is a registered trademark of the US Environmental Protection Agency (EPA).
No part of this document may be copied, reproduced or transmitted by any means for any purpose
without prior written permission from VINC.
FCC INFORMATION
This equipment has been tested and found to comply with the limits of a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy, and if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that the
interference will not occur in a particular installation. If this equipment does cause unacceptable
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following
measures -- reorient or relocate the receiving antenna; increase the separation between
equipment and receiver; or connect the into an outlet on a circuit different from that to which the
receiver is connected.
FCC WARNING
To assure continued FCC compliance, the user must use a grounded power supply cord and the
provided shielded video interface cable with bonded ferrite cores. Also, any unauthorized changes
or modifications to Amtrak products will void the user’s authority to operate this device. Thus VINC
Will not be held responsible for the product and its safety.
CE CERTIFICATION
This device complies with the requirements of the EEC directive 89/336/EEC with regard to
“Electromagnetic compatibility.”
SAFETY CAUTION
Use a power cable that is properly grounded. Always use the AC cords as follows – USA (UL);
Canada (CSA); Germany (VDE); Switzerland (SEV); Britain (BASEC/BS); Japan (Electric
Appliance Control Act); or an AC cord that meets the local safety standards.
VS420LF1A_LGD/VW42L FHDTV10A_LGD Service Manual
Chapter 1 Features
1. Built in TV channel selector for TV viewing.
2. Simulatnueous display of PC and TV images.
3. Connectable to PC’s analog RGB port.
4. Built in S-video, HDTV, composite video, HDMI and TV out.
5. Built in auto adjust function for automatic adjument of screen display.
6. Smoothing function enables display of smooth texts and graphics even if
image withresolution lower than 1920x1080 is magnified.
7. Power saving to reduce consumption power too less than 1W.
8. On Screen Display: user can define display mode (i.e. color, brightness,
contrast, sharpness, backlight), sound setting, TV channel program, aspect
and gamma or reset all setting.
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1
Chapter 2 Specification
1. LCD CHARACTERISTICS
General Specification of CMO M216H1-L01
Item Specification Unit
Diagonal size 1067.31 mm
Active Area 930.24x523.26 mm
Bezel Opening Area 939.0 (H) x 531.0 (V) mm
Driver Element a-Si TFT active matrix -
Pixel Number 1920 x R.G.B. x 1080 pixel
Pixel Pitch 0.4845(H) x 0.4845(V) mm
Pixel Arrangement RGB vertical stripe -
Display Colors 16.7million color
Transmissive Mode Normally black -
Hard coating (3H),
Surface Treatment
Anti-glare treatment of the front
-
polarizer (Haze 13%)
2. OPTICAL CHARACTERISTICS
Viewing Angle (CR>10)
Left: 89°typ.
Right: 89°typ.
Up: 89°typ.
Down: 89°typ.
3. SIGNAL (Refer to the Timing Chart)
Sync Signal
1) Type: TMDS
2) Input Voltage Level: 100~240 Vac, 50/ 60 Hz
4. Input Connectors
USB, D-SUB15PIN (MINI, 3rows), SPDIF (digital audio out), HDMIX3, RCAX2
(component), RCAX2 (AUDIO in), RCAX2 (composite), RCAX2 (AUDIO in),
S-Video, Tuner, RCAX1 (Line out)
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Page 2-1
5. POWER SUPPLY
Power Consumption: 250W MAXPower OFF: to less than 1W MAX
6. Speaker
Output 10W (max) X2
7. ENVIRONMENT
Operating Temperature: 5℃~35℃ (Ambient)
Operating Humidity: Ta= 35 °C, 90%RH (Non-condensing)
Operating Altitude: 0~14,000 feet (4267.2m)(Non-Operating)
8. DIMENSIONS (Physical dimension)
Width: 1028.0 mm
Depth: 245.0mm
Height: 722.2mm
9. WEIGHT (Physical weight)
a. Net: 21.2±0.5kgs
b. Gross: 27.3±0.5kgs
Please pay attention to the followings when you use this TFT LCD module.
9-1. MOUNTING PRECAUTIONS(1) You must mount a module using holes
arranged in four corners or four sides.
(2) You should consider the mounting structure so that uneven force (ex.
Twisted stress) is not applied to the module. And the case on which a
module is mounted should have sufficient strength so that external force is
not transmitted directly to the module.
(3) Please attach the surface transparent protective plate to the surface in
order to protect the polarizer.
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Transparent protective plate should have sufficient strength in order to the
resist external force.
(4) You should adopt radiation structure to satisfy the temperature
specification.
(5) Acetic acid type and chlorine type materials for the cover case are not
desirable because the former generates corrosive gas of attacking the
polarizer at high temperature and the latter causes circuit break by
electro-chemical reaction.
(6) Do not touch, push or rub the exposed polarizes with glass, tweezers or
anything harder than HB pencil lead. And please do not rub with dust
clothes with chemical treatment.
Do not touch the surface of polarizer for bare hand or greasy cloth.(Some
cosmetics are detrimental to the polarizer.)
(7) When the surface becomes dusty, please wipe gently with absorbent cotton
or other soft materials like chamois soaks with petroleum benzene.
Normal-hexane is recommended for cleaning the adhesives used to attach
front / rear polarizers. Do not use acetone, toluene and alcohol because
they cause chemical damage to the polarizer.
(8) Wipe off saliva or water drops as soon as possible. Their long time contact
with polarizer causes deformations and color fading.
(9) Do not open the case because inside circuits do not have sufficient
strength.
9-2. OPERATING PRECAUTIONS
(1) The spike noise causes the mis-operation of circuits. It should be lower
than following voltage:
V=±200mV (Over and under shoot voltage)
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Page 2-3
(2) Response time depends on the temperature. (In lower temperature, it
becomes longer.)
(3) Brightness depends on the temperature. (In lower temperature, it becomes
lower.)And in lower temperature, response time (required time that
brightness is stable after turned on) becomes longer.
(4) Be careful for condensation at sudden temperature change. Condensation
makes damage to polarizer or electrical contacted parts. And after fading
condensation, smear or spot will occur.
(5) When fixed patterns are displayed for a long time, remnant image is likely
to occur.
(6) Module has high frequency circuits. System manufacturers shall do
sufficient suppression to the electromagnetic interference. Grounding and
shielding methods may be important to minimize the interference.
9-3. HANDLING PRECAUTIONS FOR PROTECTION
(1) The protection film is attached to the bezel with a small masking tape.
When the protection film is peeled off, static electricity is generated
between the film and polarizer. This should be peeled off slowly and
carefully by people who are electrically grounded and with well ion-blown
equipment or in such a condition, etc.
(2) When the module with protection film attached is stored for a long time,
sometimes there remains a very small amount of glue still on the bezel after
the protection film is peeled off.
(3) You can remove the glue easily. When the glue remains on the bezel
surface or its vestige is recognized, please wipe them off with absorbent
cotton waste or other soft material like chamois soaked with
normal-hexane.
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Chapter 3 On Screen Display
Main unit button
(1). POWER
(2). MENU
(3). CH +
(4). CH -
(5). VOL +
(6). VOL -
(7). INPUT
TV Source
A. PICTURE：
a. PICTURE MODE (CUSTOM/ STANDARD / MOVIE / GAME)
b. BACKLIGHT (0~100)
c. BRIGHTNESS (0~100)
d. CONTRAST (0~100)
e. COLOR (0~100)
f. TINT (-32~32)
g. SHARPNESS (0~100)
h. COLOR TEMPERATURE (CUSTOM/COOL/NORMAL/WARM)
i. ADVANCED VIDEO
i-1. DNR(OFF/LOW/MEDIUM/STRONG)
i-2. BLACK LEVEL EXTENDER (ON/OFF)
i-3. WHITE PEAK LIMITATOR (ON/OFF)
i-4. CTI(OFF/LOW/MEDIUM/STRONG)
i-5. FLESH TONE (ON/OFF)
i-6. ADAPTIVE LUMA (ON/OFF)
i-7. DCR(ON/OFF)
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B. AUDIO：
a. VOLUME (0~100)
b. BASS (0~100)
c. TREBLE (0~100)
d. BALANCE (-50~50)
e. SURROUND (ON/OFF)
f. DIGITAL AUDIO OUT (PCM)
g. SPEAKERS (ON/OFF)
h. LIP SYNC (0~5)
C. TV：
a. TUNER MODE (ANTENNA/CABLE)
b. AUTO SEARCH (RUN)
c. SKIP CHANNEL (TABLE)
d. MTS (STEREO)
e. TIME ZONE
(HAWALL/EASTTERN/INDIANA/CENTRAL/MOUNTAIN/ARIZONA/PACIFI
C/ALASKA)
f. Daylight Saving(ON/OFF)
D. SETUP：
a. LANGUAGE (ENGLISH/FRENCH/SPANISH)
b. SLEEP TIMER (OFF/30/60/90/120)
c. WIDE (WIDE)
d. INPUT NAMING
e. CC (ON/OFF)
f. CC ON MUTE (ON/OFF)
g. DIGITAL CC STYLE
g-1. CAPTION STYLE
(AS BROADCASTER/CUSTOM)
g-2. FONT SIZE(SMALL/MEDIUM/LARGE)
g-3. FONT COLOR
(GREEN/BLUE//RED/CYAN/YELLOW/MAGENTA/BLACK/WHITE)
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g-4. FONT OPACITY
(SOLID/TRANSLUCENT/TRANSPARENT)
g-5. BACKGROUND COLOR
(GREEN/BLUE//RED/CYAN/YELLOW/MAGENTA/BLACK/WHITE)
g-6. BACKGROUND OPACITY
(SOLID/TRANSLUCENT/TRANSPARENT)
g-7. WINDOW COLOR
(GREEN/BLUE//RED/CYAN/YELLOW/MAGENTA/BLACK/WHITE)
g-8. WINDOW OPATITY
(SOLID/TRANSLUCENT/TRANSPARENT)
h. H/V POSITION
i. RESET ALL SETTING
E. PARENTAL：
a. PASSWORD
a-1. CHANNEL BLOCK
a-2. US TV RATING
a-3. US MOVIE RATING
a-4. Canadian English Rating
a-5. Canadian French Rating
a-6. CHECK FOR NEW DTV RATING
a-7. BLOCK TV UNRATED
a-8. ACCESS CODE EDIT
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RGB Mode
A. PICTURE ADJUST：
a. AUTO PICTURE (Run)
b. BACKLIGHT (0~100)
c. BRIGHTNESS (0~100)
d. CONTRAST (0~100)
e. COLOR TEMPERATURE(CUSTOM, 6500K, 9300K)
f. H-SIZE (0~255)
g. H-POSITION (0~100)
h. V-POSITION (0~100)
i. FINE TUNE (0~31)
B. AUDIO：
a. VOLUME (0~100)
b. BASS (0~100)
c. TREBLE (0~100)
d. BALANCE (-50~50)
e. SURROUND (ON/OFF)
f. SPEAKERS (ON/OFF)
C. SETUP：
a. LANGUAGE (ENGLISH/FRENCH/SPANISH)
b. SLEEP TIMER (OFF/30/60/90/120)
RESET ALL SETTING
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Video MODE
AV-C、AV-S 、COMPONENT
A. PICTURE：
a. PICTURE MODE (CUSTOM/ STANDARD / MOVIE / GAME)
b. BACKLIGHT (0~100)
c. BRIGHTNESS (0~100)
d. CONTRAST (0~100)
e. COLOR (0~100)
f. TINT (-32~32)
g. SHARPNESS (0~100)
h. COLOR TEMPERATURE (CUSTOM/COOL/NORMAL/WARM)
i. ADVANCED VIDEO
i-1. DNR(OFF/LOW/MEDIUM/STRONG)
i-2. BLACK LEVEL EXTENDER (ON/OFF)
i-3. WHITE PEAK LIMITATOR (ON/OFF)
i-4. CTI(OFF/LOW/MEDIUM/STRONG)
i-5. FLESH TONE (ON/OFF)
i-6. ADAPTIVE LUMA (ON/OFF)
i-7. DCR(ON/OFF)
B. AUDIO：
a. VOLUME (0~100)
b. BASS (0~100)
c. TREBLE (0~100)
d. BALANCE (-50~50)
e. SURROUND (ON/OFF)
f. SPEAKERS (ON/OFF)
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D. SETUP：
a. LANGUAGE (ENGLISH/FRENCH/SPANISH)
b. SLEEP TIMER (OFF/30/60/90/120)
c. RESET ALL SETTING
E. PARENTAL：
a. PASSWORD
a-1. CHANNEL BLOCK
a-2. US TV RATING
a-3. US MOVIE RATING
a-4. Canadian English Rating
a-5. Canadian French Rating
a-6. CHECK FOR NEW DTV RATING
a-7. BLOCK TV UNRATED
a-8. ACCESS CODE EDIT
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HDMI MODE：
A. PICTURE：
a. PICTURE MODE (CUSTOM/ STANDARD / MOVIE / GAME)
b. BACKLIGHT (0~100)
c. BRIGHTNESS (0~100)
d. CONTRAST (0~100)
e. COLOR (0~100)
f. TINT (-32~32)
g. SHARPNESS (0~100)
h. COLOR TEMPERATURE (CUSTOM/COOL/NORMAL/WARM)
i. ADVANCED VIDEO
i-1. DNR(OFF/LOW/MEDIUM/STRONG)
i-2. BLACK LEVEL EXTENDER (ON/OFF)
i-3. WHITE PEAK LIMITATOR (ON/OFF)
i-4. CTI(OFF/LOW/MEDIUM/STRONG)
i-5. FLESH TONE (ON/OFF)
i-6. ADAPTIVE LUMA (ON/OFF)
i-7. DCR(ON/OFF)
B. AUDIO：
a. VOLUME (0~100)
b. BASS (0~100)
c. TREBLE (0~100)
d. BALANCE (-50~50)
e. SURROUND (ON/OFF)
f. SPEAKERS (ON/OFF)
C. SETUP：
a. LANGUAGE (ENGLISH/FRENCH/SPANISH)
b. SLEEP TIMER (OFF/30/60/90/120)
c. RESET ALL SETTING
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Chapter 9 Trouble shooting
LED is lighted
1. Is Power board output
+5V
SB (CB1)?
It is in power saving
Panel
has no
It means data to LVDS
MONITOR DISPLAY NOTHING (PC MODE)
Start
(OrangeèWhite)
N0
2. Is J1 connector of MB good?
3. Is DC-DC OK?
4. Is U4 pin2 (+3V3SB) working ok?
LED is lighting?
data out?
Yes
Yes
N0
N0
1. Check video cable
2. Is the timing supported?
3. Check sync input
4. Check VGASOG rout if analog (SOG) (CB192)
1. Is J5 connecting OK?
2. Check J1 +5VSB (CB1) & +12V (CB3)
3. Is panel ok?
4. Check P5 D-sub Input correct
5. Check analog input route
Yes
END
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Input signal good?
1. Check video
2. Che
ck DVD player
1. Check P
4
signal
LVDS output
1. Ch
eck J5
Connect is
good?
1. Check LVDS LINE
(TV, AV, S-VIDEO) IS NOT DISPLAY CORRECTLY
Start
N0
Yes
U12 input correct?
Yes
correct?
Yes
2. Is panel working ok?
END
N0
N0
2. Check signal between P4 and U12 (IF AV, S-Video
mode)
3. Check Tuner & U12 (IF TV mode)
4. Check U12 POWER 3.3V
2. Check U12 clock (60MHz) (Y1)
3. Check U12 Power
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Input signal good?
1. Check video
2. Check host’s setting
1. Check signal
from P4
U12
input correct?
1. Check signal between U
12 & P4
Is
LVDS output
c
orrect
?
1. Check U
12
1
.Is J5 connected good?
(COMPONENT) IS NOT DISPLAY CORRECTLY
Start
N0
Yes
P 4 input correct?
Yes
Yes
Yes
2. Is panel working ok?
END
N0
2. Check system power 12V& 5V (5VSB)
N0
2. Check Y1 Clock (60MHz)
N0
2. Check U12 power 3.3V, 2.5V, 1.8V and 1.25V
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1. Check video
1. Check
P7, P
9, P14
connect
1. Is J5 connected good?
HDMI IS NOT DISPLAY CORRECTLY
Start
Input signal good?
U12 no data out ?
2. Is panel working ok?
Yes
Yes
N0
2. Check host’s setting
N0
2. Check the pin18 & 19 of P7, P9, P14
Yes
END
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J1 PIN
9,PI
N10,PIN11
The voltage is about +
5V (+5VSB)
The voltage is about + 12V while power switch on
The voltage is about +5V while power switch on
The voltage is about +3.3V
The voltage is about
AV
1.2V while power switch
on
The voltage is about
DDRV (
+2.5V) while power
U11
pin3
The voltage is about +12V to +5V
_
Tuner
while
D3
pin2
The voltage is about
+30V_Tuner
(+30V)
while
TROUBLE OF DC-DC CONVERTER
Start
N0
1. Check power board
2. Check power cable, CB1 & connection J1
Yes
J1 PIN 2, 3, 4
Yes
U1 pin 5 6 7 8
Yes
U2, U4 pin2
Yes
U8 pin2
Yes
U5 pin2
N0
N0
N0
N0
N0
1. Is J1 connection good
2. Check J1 Pin1 is up to about 3.3V (+3V3SB)?
3. Check power board
4. Check CB3
1. Check CB1 & U1
2. Check OPWRSB (R11)
3. Check U1 pin1 & 3
1. Check CB1 & U1
2. Check U2, U4
1. Check CB1 & U1
2. Check U8 pin2
switch on
1. Check J1 Connect
2. Check U5 pin2
END
Yes
Yes
Yes
N0
N0
power switch on
1. Check CB3
2. Check U11 pin1 (+12V) & pin3 (+5V_TUNER)
power switch on
1. Check U11 pin3 (+5V_TUNER)
2. Check CE23
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Is
Analog DDC
Support DDC1/2B
Is
HDMI
DDC
Support DDC1/2B
TROUBLE OF EDID READING
Start
N0
OK?
Yes
N0
OK?
1. Analog cable ok?
2 .Check signal (U22 to P5)
3. Check U22 Voltage
4. Is protocol compliant?
1. HDMI cable ok?
2. Check signal (U19 to P7); (U30 to P8)
3. Is protocol compliant?
Yes
END
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