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Service Manual
V, Inc
320A Kalmus Drive Costa Mesa, CA 92626
TEL : +714-668-0588 FAX :+714-668-9099
Top Confidential
Model #: VIZIO VU42L FHDTV10A
/VS42L FHDTV10A_MT5373
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VIZIO VU42L/VS42L FHDTV10A Service Manual
Table of Contents
CONTENTS PAGE
Sections
1. Features 1-1
2. Specifications 2-1
3. On Screen Display 3-1
4. Factory Preset Timings
4-1
5. Pin Assignment
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
Block Diagram
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VINC Service Manual
VIZIO VU42L/VS42L FHDTV10A
VIZIO VU42L/VS42L FHDTV10A Service Manual
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.
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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. High quality 1920X1080 pixel by pixel display.
7. Smoothing function enables display of smooth texts and graphics even if
image with resolution lower than 1920X1080 is magnified
8. Advanced video functions for personal favor.
9. Picture In Picture (PIP) funtion to show TV or VCR images
10. Power saving to reduce consumption power too less than 3W
11. On Screen Display: user can define display mode (i.e. color, brightness,
contrast, sharpness, backlight), sound setting, PIP, TV channel program,
aspect and gamma or reset all setting.
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Chapter 2 Specification
1. TFT-LCD CHARACTERISTICS
Model Name: LPL 42.0” WUXGA TFT LCD (Vendor: LG. Philips LCD Co., Ltd)
Display Size: 42.02 inches (1067.31mm) diagonal
Outline Dimension: 983.0 mm (H) x 576.0 mm (V) x 51.0 mm (D) (Typ.)
Pixel Pitch: 0.4845mm x 0.4845mm x RGB
Pixel Format: 1920 horiz. By 1080 vert. Pixels RGB strip arrangement
Display Operating Mode: Transmissive mode, normally Black
Surface Treatment: Hard Coating (3H) ,Anti-glare treatment of the front
polarizer.
2. TFT-LCD OPTICAL CHARACTERISTICS
Contrast ratio: 1.CR : 900(Typ) 2. CR WITH AI : 1500(Typ)
Surface Luminance, White: 500 cd/m
2 (Typ)
Luminance Variation, δ=1.3 (Max)
Response Time = 8 mx (Max=10mx)
Viewing Angle (CR>10)
Left: 89°typ.
Right: 89°typ.
Top: 89°typ.
Bottom: 89°typ.
3. Input Connectors
RJ11, D-SUB15PIN (MINI, 3rows), Headphone, HDMIX2, RCAX3 (component),
RCAX2 (AUDIO in), RCAX3 (composite), RCAX2 (AUDIO in), S-Video, Tuner
4. POWER SUPPLY
Input Voltage Level: 90~240 Vac, 50/ 60 Hz
Power Consumption: 280W MAX
Power OFF: to less than 3W MAX
5. Speaker
Output 10W (max) X2
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6. ENVIRONMENT
6-1. Operating Temperature: 5c~35c (Ambient)
6-2. Operating Humidity: Ta= 35 °C, 90%RH (Non-condensing)
6-3. Operating Altitude: 0 - 14,000 feet (4267.2m)(Non-Operating)
7. DIMENSIONS (Physical dimension)
Dimensions with stand：
1066mm(W) x 765.4mm(H) x 269.2mm(D) inches
Dimension without stand：
1066mm(W) x 650.5mm(H) x 123.5mm(D) inches
8. WEIGHT (Physical weight)
a. Net 36.0 +/- 0.5 kgs
b. Gross 43+/- 0.5 kgs
Precaution
Please pay attention to the followings when you use this TFT LCD module.
1. 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)
(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.
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2. 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
On Screen Display (OSD) is a friendly interface providing the function adjusting in our system.
Customers could operate it only by few buttons. There is the introduction of the OSD.
Main unit button
MENU OK
CH ▲ ↑
CH ▼ ↓
VOL + ←
VOL - →
Input
[MENU]
“MENU” button could star the OSD which could adjust the performance and set up the setting
between the different input sources. There are the structures.
TV Source
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A. Picture：(Bold: Default)
a. Picture Mode (Standard/Movie /Game / Custom)
b. Backlight (0~100, 90)
c. Contrast (0~100, 50)
d. Brightness (0~100, 50)
e. Color (saturation)(0~100, 50)
f. Tint (hue) (-32~32, 0)
g. Sharpness (0~7, 4)
h. Color Temperature (Cool/Normal/Warm/Custom)
i. Advanced Video
1. DNC (Low/Medium/Strong/Off)
2. Black level extender (Off/On)
3. White Peak Limiter (On/Off)
4. CTI (Low/Medium/Strong/Off)
5. Flesh Tone (Off/On)
6. Adaptive Luma (Off/On)
7. DCR (Off/On)
B. Audio：(Bold: Default)
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a. Volume (0~100, 25)
b. Bass (0~100, 50)
c. Treble (0~100, 50)
d. Balance (-50~50, 0)
e. Surround (ON/OFF)
f. Speakers (ON/OFF)
C. TV：(Bold: Default)
a. Tuner Mode (Cable/Air)
b. Auto Search
c. Skip Channel
d. Digital Audio Out (PCM/Dolby Digital/OFF)
e. Time Zone (Eastern/Indiana/Central/Mountain/Arizona/Pacific/Alaska/Hawaii)
f.
DAYLIGHT SAVING (ON, OFF)
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D. Setup：(Bold: Default)
a. Language (English/ Français / Espaňol)
b. Sleep Timer (OFF/30Min/60Min/90Min/120Min)
c. Analog CC (OFF/CC1~4/TT1~4)
d. Digital CC (OFF/CC1~4/Service1~6)
e. Digital CC Style
1. Caption Style (As Broadcaster/Custom)
2. Size (Large/Small/Medium)
3. Font Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black)
4. Font Opacity (Solid/Translucent/Transparent)
5. Background Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black)
6. Background Opacity (Solid/Translucent/Transparent)
7. Window Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black)
8. Window Opacity (Solid/Translucent/Transparent)
f. PIP
1. Style (OFF/PIP/POP)
2. Input (TV, AV1, AV2, COMPONENT1, COMPONENT2, RGB, HDMI1, HDMI2)
3. Size (Small/Medium/Large)
4.
Position(Bottom Right, Bottom Center, Bottom Left, Middle Left, Top Left,
Top Center, Top Right, Middle Right)
g. H/V Position
1. H. Position (0~64, 32)
2. V. Position (0~32, 16)
3. V. size (0~100, 20)
h. Rest All Setting (OK/Cancel)
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E. Parental：(Bold: Default)
Password (Default => 0000)
a. Cannel Block
b. TV Rating
c. Move Rating
d. Block Unrated TV (NO/Yes)
e. Access Code Edit
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RGB Mode
A. Picture Adjust：(Bold: Default)
a. Auto Adjust
b. Backlight (0~100, 90)
c. Contrast (0~100, 50)
d. Brightness (0~100, 50)
e. Color Temperature (6500/9300/Custom)
f. H-Size (0~255, 127)
g. H-Position (0~100, 65)
h. V-Position (0~100, 49)
i. Fine Tune (0~31, 17)
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B. Audio：(Bold: Default)
a. Volume (0~100, 25)
b. Bass (0~100, 50)
c. Treble (0~100, 50)
d. Balance (-50~50, 0)
e. Surround (ON/OFF)
f. Speakers (ON/OFF)
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D. Setup：(Bold: Default)
a. Language (English/ Français / Espaňol)
b. Sleep Timer (OFF/30Min/60Min/90Min/120Min)
c. Analog CC (OFF/CC1~4/TT1~4)
d. Digital CC (OFF/CC1~4/Service1~6)
e. Digital CC Style
1. Caption Style (As Broadcaster/Custom)
2. Size (Large/Small/Medium)
3. Font Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black)
4. Font Opacity (Solid/Translucent/Transparent)
5. Background Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black)
6. Background Opacity (Solid/Translucent/Transparent)
7. Window Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black)
8. Window Opacity (Solid/Translucent/Transparent)
f. PIP
1. Style (OFF/PIP/POP)
2. Input (TV, AV1, AV2, COMPONENT1, COMPONENT2, RGB, HDMI1, HDMI2)
3. Size (Small/Medium/Large)
4.
Position(Bottom Right, Bottom Center, Bottom Left, Middle Left, Top Left,
Top Center, Top Right, Middle Right)
g. H/V Position
1. H. Position (0~64, 32)
2. V. Position (0~32, 16)
3. V. size (0~100, 20)
h. Rest All Setting (OK/Cancel)
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AV / COMPONENT MODE
A. Picture：(Bold: Default)
a. Picture Mode (Standard/Movie /Game / Custom)
b. Backlight (0~100, 90)
c. Contrast (0~100, 50)
d. Brightness (0~100, 50)
e. Color (saturation)(0~100, 50)
f. Tint (hue) (-32~32, 0)
g. Sharpness (0~7, 4)
h. Color Temperature (Cool/Normal/Warm/Custom)
i. Advanced Video
1. DNC (Low/Medium/Strong/Off)
2. Black level extender (Off/On)
3. White Peak Limiter (On/Off)
4. CTI (Low/Medium/Strong/Off)
5. Flesh Tone (Off/On)
6. Adaptive Luma (Off/On)
7. DCR (Off/On)
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B. Audio：(Bold: Default)
a. Volume (0~100, 25)
b. Bass (0~100, 50)
c. Treble (0~100, 50)
d. Balance (-50~50, 0)
e. Surround (ON/OFF)
f. Speakers (ON/OFF)
C. Setup：(Bold: Default)
a. Language (English/ Français / Espaňol)
b. Sleep Timer (OFF/30Min/60Min/90Min/120Min)
c. Analog CC (OFF/CC1~4/TT1~4)
d. Digital CC (OFF/CC1~4/Service1~6)
e. Digital CC Style
1. Caption Style (As Broadcaster/Custom)
2. Size (Large/Small/Medium)
3. Font Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black)
4. Font Opacity (Solid/Translucent/Transparent)
5. Background Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black)
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6. Background Opacity (Solid/Translucent/Transparent)
7. Window Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black)
8. Window Opacity (Solid/Translucent/Transparent)
f. PIP
1. Style (OFF/PIP/POP)
2. Input (TV, AV1, AV2, COMPONENT1, COMPONENT2, RGB, HDMI1, HDMI2)
3. Size (Small/Medium/Large)
4.
Position(Bottom Right, Bottom Center, Bottom Left, Middle Left, Top Left,
Top Center, Top Right, Middle Right)
g. H/V Position
1. H. Position (0~64, 32)
2. V. Position (0~32, 16)
3. V. size (0~100, 20)
h. Rest All Setting (OK/Cancel)
D. Parental：(Bold: Default)
Password (Default => 0000)
a. Cannel Block
b. TV Rating
c. Move Rating
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d. Block Unrated TV (NO/Yes)
e. Access Code Edit
HDMI MODE
A. Picture：(Bold: Default)
a. Picture Mode (Standard/Movie /Game / Custom)
b. Backlight (0~100, 90)
c. Contrast (0~100, 50)
d. Brightness (0~100, 50)
e. Color (saturation)(0~100, 50)
f. Tint (hue) (-32~32, 0)
g. Sharpness (0~7, 4)
h. Color Temperature (Cool/Normal/Warm/Custom)
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i. Advanced Video
1. DNC (Low/Medium/Strong/Off)
2. Black level extender (Off/On)
3. White Peak Limiter (On/Off)
4. CTI (Low/Medium/Strong/Off)
5. Flesh Tone (Off/On)
6. Adaptive Luma (Off/On)
7. DCR (Off/On)
B. Audio：(Bold: Default)
a. Volume (0~100, 25)
b. Bass (0~100, 50)
c. Treble (0~100, 50)
d. Balance (-50~50, 0)
e. Surround (ON/OFF)
f. Speakers (ON/OFF)
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C. Setup：(Bold: Default)
a. Language (English/ Français / Espaňol)
b. Sleep Timer (OFF/30Min/60Min/90Min/120Min)
c. Analog CC (OFF/CC1~4/TT1~4)
d. Digital CC (OFF/CC1~4/Service1~6)
e. Digital CC Style
1. Caption Style (As Broadcaster/Custom)
2. Size (Large/Small/Medium)
3. Font Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black)
4. Font Opacity (Solid/Translucent/Transparent)
5. Background Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black)
6. Background Opacity (Solid/Translucent/Transparent)
7. Window Color (White/Green/Blue/Red/Cyan/Yellow/Magenta/Black)
8. Window Opacity (Solid/Translucent/Transparent)
f. PIP
1. Style (OFF/PIP/POP)
2. Input (TV, AV1, AV2, COMPONENT1, COMPONENT2, RGB, HDMI1, HDMI2)
3. Size (Small/Medium/Large)
4.
Position(Bottom Right, Bottom Center, Bottom Left, Middle Left, Top Left,
Top Center, Top Right, Middle Right)
g. H/V Position
1. H. Position (0~64, 32)
2. V. Position (0~32, 16)
3. V. size (0~100, 20)
h. Rest All Setting (OK/Cancel)
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[INPUT]
“INPUT” could supply an interface providing a list. The list shows input sources and
provides the choices of different sources. The list includes items as below:
A. TV: Analog TV or digital TV
B. AV1, AV2 : Composite (AV) signal
C. Component1, Component2: Color
difference (YPbPr) video signals.
D. RGB: Video Graphics Array (VGA) or
D-sub video signals.
E. HDMI1, HDMI2: High Definition Multimedia
Interface (HDMI) multimedia signals.
Note： The list of PIP provides the choices of
different sources on sub-screen.
[INFO]
“INFO” button could show an information bar which displays the information about the
input signal on our LCD TV.
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N0
Yes
N0
N0
Yes
N0
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Yes
Yes
Yes
Chapter 9 Trouble solvents
MONITOR DISPLAY NOTHING (PC MODE)
Start
LED is lighted
(
Orange)
1. Is Power board output
+5V(F2)?
2. Is J1 connector good?
3. Is DC-DC OK?
4. Is U8 pin2 (3.3V) working ok?
LED is lighting?
It is in power saving
1. Check video cable
2. Is the timing supported?
3. Check sync input
4. Check VGASOG rout if analog
(SOG) (C88)
Is backlight on?
1.Check J1 PIN 13 (5V)
2.Is inverter ok?
3.Is Power Board ok?
U11has no data
out?
It means data to LVDS
1. Is J7 connecting OK?
2. Check J1 +5V (F2) & +12V (F1)
3. Is panel ok?
4.
Check P3 D-sub Input correct
5. Check analog input route
END
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Yes
N0
N0
Yes
Yes
N0
(TV,
COMPOSITE VIDEO1, 2, S-VIDEO) IS NOT DISPLAY CORRECTLY
Start
Input signal good?
1. Check video
2. Check DVD player
U14 input correct?
1. Check P11&J4 signal
2. Check signal between P2 and
U14 (IF AV1/AV2 mode)
3. Check Tuner &U14 (IF TV mode)
4. Check J4 (IF S-Video)
5. Check U14 POWER +3.3V
LVDS output correct?
1.Chcak J5 Connect is good?
2.Is panel working ok?
END
1.Check LVDS LINE
2.Check U4 clock (27MHz)(X1)
3.Check U4 power
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N0
N0
N0
N0
Yes
Yes
Yes
Yes
(COMPONENT1,
2) IS NOT DISPLAY CORRECTLY
Star t
Is input signal good?
1. Check video
2. Check host’s setting
Is P1 input correct?
1. Check signal from P1
2. Check system power 12V& 5v
Is U14 input correct?
1. Check signal between U14&P1
2. Check X1 Clock (27MHZ)
Is LVDS output
correct ?
1. Check U14
2. Check U14 power 3.3V&1.28v&1.3v & 1.5V
1 .Is J7 connected good?
2. Is panel working ok?
END
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Yes
Yes
N0
N0
N0
Yes
Yes
Yes
(
HDMI) IS NOT DISPLAY CORRECTLY
Input signal good?
Star t
1. Check video
2. Check host’s setting
U14 input correct?
1. Check p6&p7 connect
2. Check the pin18 & 19 of P6 & P7
3. Check the pin 6 of U23 & U25
U22 no data out ?
1. Check U14 power
2 Check between signal U14 and
U22
3. Check U14 clock 27MHZ
1.Is J7 connected good?
2.Is panel working ok?
END
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Yes
N0
N0
Yes
N0
N0
N0
N0
N0
Yes
Yes
Yes
Yes
TROUBLE
OF DC-DC CONVERTER
Start
J1 PIN 9 10,11,
J1 PIN 2,3,4,5
The voltage is about + 12V while power switch on
1. Is J1 connection good
2. Check J1 Pin1 is up to about 3.3V?
3. Check power board
4. Check F1.
The voltage is about + 5V
1. Check power board
2. Check power cable, F2 & connection J1
3. Check U8 pin1 (+5V) & pin2 (+3.3V)
U32 pin 5 6 7 8
The voltage is about +5V while power switch on
1. Check F2 & U1
2. Check OPWRSB (R20)
3. Check U1 pin1&2 or pin 3&4, should have -1V more.
U2, U8 & U33 pin2
The voltage is about +3.3V
1. Check F2 & U1
2. Check U2, U4 & U33
CE15 pin 1
The voltage is about +1.6V
1. Check F2 & U1
2. Check U6
U10 pin2
The voltage is about +2.6V while power switch on
1.Check J1 Connect
2.Check U10
L7 pin2
The voltage is about +1.2V while power switch on
1. Check F2 & U1
2. Check U5
END
U3 pin1 & pin2
The voltage is about +12V to +5V(for Tuner)while power
switch on
1. Check F1
2. Check U3 pin1 (+12V) & U3 pin2 (+5V)
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N0
Yes
Yes
N0
TROUBLE
OF EDID READING
Start
Is Analog DDC OK?
Support DDC1/2B
1. Analog cable ok?
2 .Check signal (U21 to P3)
3. Check U21 Voltage
4. Is protocol compliant?
Is HDMI DDC OK?
Support DDC1/2B
1. Analog cable ok?
2. Check signal (U23 to P6)
3. Check signal (U25 to P7)
4. Is protocol compliant?
END
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