Vizio E50-C1 Schematic
50″/ 55″LCD TV Vizio E50-C1&E55-C1
Service
Service
Service
Horizontal Frequency
15.734~78.6 kHz
Description Page Description Page
Table of Contents.......….….................................…...........1
Important Safety Notice.........................................…….....2
Revision List……………………..……………….…………3
1. General Specification................................………..........4
2. Operating Instructions………..……..…….………..........5
3. Input /Output Specification…..……….....................…....6
3.1Component Video Signal Input.........................…...6
3.2 HDMI Signal Input................................................…...6
Table of Contents
6.3 IR Board……..……………………..…..………....28
6.4 Key Board……..…………………..……….……....29
7. Adjustment.............................................................30
7.1 White Balance Adjustment…..…….………………30
7.2 Firmware Instruction……...………………………..31
8. Block Diagram.………............................................34
9. Schematic Diagram…...….……………..………...35
9.1 Main Board……...…………………………….........35
3.3 Preset & User Timings........................................…....7
4. Mechanical Instructions…………….….….....................8
5. Repair Flow Chart……..…………….….…….……......14
6. PCB Layout……..….……..………….……....…...........20
6.1 Main Board…...………..………..........…………......20
6.2 Power Board…….………..………………..………....24
SAFETY NOTICE
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
9.2 Power Board……..……….………....…………...61
9.3 IR Board…...…………….…….………….………...65
9.4 Key Board…..………….……….……….….….......66
10. Exploded View…….….…………………………….67
11. BOM List…………...……………………….……….71
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
1
Important Safety Notice
Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service
procedures recommended by AOC and described in this service manual are effective methods of performing service
operations. Some of these service operations require the use of tools specially designed for the purpose. The
special tools should be used when and as recommended.
It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in
order to minimize the risk of personal injury to service personnel. The possibility exists that improper service
methods may damage the equipment. It is also important to understand that these CAUTIONS and NOTICES ARE
NOT EXHAUSTIVE. AOC could not possibly know, evaluate and advise the service trade of all conceivable ways in
which service might be done or of the possible hazardous consequences of each way. Consequently, AOC has not
undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not
recommended by AOC must first satisfy himself thoroughly that neither his safety nor the safe operation of the
equipment will be jeopardized by the service method selected.
Hereafter throughout this manual, AOC Company will be referred to as AOC.
WARNING
Use of substitute replacement parts, which do not have the same, specified safety characteristics, might create
shock, fire, or other hazards.
Under no circumstances should the original design be modified or altered without written permission from AOC.
AOC assumes no liability, express or implied, arising out of any unauthorized modification of design.
Servicer assumes all liability.
FOR PRODUCTS CONTAINING LASER:
DANGER-Invisible laser radiations when open AVOID DIRECT EXPOSURE TO BEAM.
CAUTION-Use of controls or adjustments or performance of procedures other than those specified herein may
result in hazardous radiation exposure.
CAUTION -The use of optical instruments with this product will increase eye hazard.
TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S
REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION OF
THIS SERVICE MANUAL.
Take care during handling the LCD module with backlight unit
-Must mount the module using mounting holes arranged in four corners.
-Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen.
-Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to
the panel.
-Protect the module from the ESD as it may damage the electronic circuit (C-MOS).
-Make certain that treatment person’s body is grounded through wristband.
-Do not leave the module in high temperature and in areas of high humidity for a long time.
-Avoid contact with water as it may a short circuit within the module.
-If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may
damage the panel.)
2
Revision List
Version Release Date Revision Instructions Customer Model
E50-C1 E50S42NKHLVUNNX
A00 Dec.24,2014 Initial Release
E55-C1 E55S42NKHLVUNNX
A01 Mar.09.2015 Add new model E50-C1 E50F42NKHLVUNNX
A02 Apr.14.2015 Add new model E55-C1 E55F52NKHLVUNNX
TPV Model
3
1. General Specification
Please refer to user manual
4
2. Operating Instructions
Please refer to user manual
5
1 GND
2
Red (Pr)
3
GND
4
Blue (Pb)
5
GND
6 Green (Y)
3. Input/ Output Specification
3.1 Component Video
The input signals are applied to display through component video cable.
PIN NO. SIGNAL
Component Timing
VA Large Size HDMI Video Timing
1 480i 59.94/60Hz
2 640 x 480p 59.94/60 Hz
3 720 x 480p 59.94/60Hz
4 720p 59.94/60Hz
5 1080i 59.94/60Hz
6 1080p 60Hz
3.2 HDMI Signal input / output
Pin No.
1
2
3
4
Description Pin No.
TMDSD2+
DSHLD2
TMDSD2-
TMDSD1+
11
12
13
14
Description
TMDSC
TMDSC-
CEC
ARC
5
6
7
8
9
10
DSHLD1
TMDSD1-
TMDSD0+
DSHLD0
TMDSD0-
TMDSC+
15
16
17
18
19
6
SCL
SDA
DDC_GND
VCC5
HPD
3.3 Preset & User Timings
VA Large
Component Timing
VA Large Size HDMI Video Timing
1 480i 59.94/60Hz
2 640 x 480p 59.94/60 Hz
3 720 x 480p 59.94/60Hz
4 720p 59.94/60Hz
5 1080i 59.94/60Hz
6 1080p 60Hz
HDMI Timing
Size
1 480i 59.94/60Hz
2 640 x 480p 59.94/60 Hz
3 720 x 480p 59.94/60Hz
4 720p 59.94/60Hz
5 1080i 59.94/60Hz
6 1080p 60Hz
7 1080p 23.97/24/59.94Hz only for HDMI
HDMI Video Timing
7
4. Mechanical Instructions
E50-C1
1. Remove stands out of the base of the TV. (The stands are identical.)
2. Remove the screws to remove the Rear Cover.
8
3. Remove the key board.
4. Remove the tapes, pins, screws, Speakers and IR board.
5. Remove the screws to remove the BKT.
9
6. Remove the LVDS.
7. Panel
10
E55-C1
1. Remove the screws to remove the Stand.
2. Remove the screws to remove the Rear Cover.
11
3. Remove the key board.
4. Remove the tapes, pins, screws, Speakers and IR board.
5. Remove the screws to remove the BKT.
12
6. Remove the LVDS.
7. Panel
13
5. Repair Flow Chart
1. No power
No power (LED OFF)
Check the AC IN and
whether the power is
on?
Yes
NO
Power on
Whether power
board output=12V?
Yes
Check IR board and LED normal?
NO
Replace IR board
Whether the model
is ok?
NO
Replace main board
NO
Replace the power board
14
NO
2. Can’t start
Can’t start
Whether power
board output=12V?
Yes
Check the power
key is under control?
Yes
Check the IR
receiver is normal?
Yes
Replace main board
Replace the power board
NO
Replace the key board
NO
Replace the IR board
15
3. Abnormal display
NO
Abnormal display
Check the source
is normal?
Yes
Enter the factory mode
to do EEPROM initial &
reset
NO
Check the main
board is normal?
Yes
NO
NO
Reset the source
Replace main board
Check the LVDS
wire is normal?
Yes
Replace panel
Replace LVDS wire
16
4. No display
NO
Replace LVDS wire
No display (LED ON)
Check backlight is on?
Yes
Check the LVDS
wire is normal?
Yes
Replace main board
Check the model
is ok?
NO
Replace panel
NO
Check VLED=12V?
Yes
NO
Replace power board
17
5. Sound problem
No sound or abnormal sound
Check audio source or
TV channel are normal?
Reset audio source or change
Yes
TV is mute? Or the
volume is too low?
Cancel the mute or adjust the volume
NO
Enter factory to do reset
NO
Check the wire between main
board and speaker is ok?
Yes
Check the value of speaker
resistance is in specification?
Yes
NO
TV channel
Yes
NO
Replace the wire
NO
Replace the speaker
Replace main board
18
6. Remote control malfunction
Remote control malfunction
Check the battery of remote
control is placed properly or
no power?
NO
Use another remote
control can work?
NO
Yes
Replace the battery
Yes
Replace remote control
Check IR board normal?
Yes
Replace main board
NO
Replace IR board
19
6. PCB Layout
6.1 Main Board
715G7126M01000004K
20
21
22
23
6.2 Power Board
715G6973P01000002H
24
25
26
27 28
6.3 IR Board
715G7145R01000004K
6.4 Key Board
715G6284K01000004F
29
Normal
Computer
Cool
7 Adjustment
7.1 White Balance Adjustment
1. Enter factory model，step MENU+ 1999+last ;
2. This TV adjust YPbPr source，example YPbPr source Normal temperature;
3. Choose “Current Source” to YPbPr whit remote control，“Color temp” as NORMAL;
4. Choose “WB Patten”=818（normal，computer，cool color temperature）;
5. Adjust R,G,B GAIN value，in order to the color temperature，luminance meet specifications;
6. The value of R,G,B GAIN should be app：
R GAIN 80 140 80 140 50 150
G GAIN 75 128 75 120 50 145
B GAIN 80 134 80 132 60 130
7. Check the sources of HDMI and AV，if color temperature over the specifications，please adjust it as YPbPr.
8. Temperature spec：
Normal Computer Cool
x (center)
y (center)
MIN MAX MIN MAX MIN MAX
0.313 0.003 0.285 0.003 0.276 0.003
0.329 0.003 0.293 0.003 0.282 0.003
9. MAX luminance（cool） >250
30
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