TV Logic LVM-074W User manual

MODEL NAME:
LVM-074W 7” MULTI FORMAT BROADCAST MONITOR
SERVICE MANUAL
KEEP THIS SERVICE MANUAL FOR FUTURE REFERENCE.
PLEASE CALL 82-70-8668-6611 OR EMAIL TO [email protected] FOR ASSISTANCES
IF YOU HAVE ANY QUESTION ABOUT LVM-173W-3G MODEL.
THIS INFORAMATION OF THIS MANUAL IS SUBJECT TO CHANGE WITHOUT ANY NOTICE.
MULTI FORMAT
BROADCAST MONITOR

ABOUT TVLOGIC SERVICE MANUAL:
TVLogic Service manual contains information and service procedures to
assist the service technician in understanding and correcting problem
about LVM-074W model.
This information should be reviewed by a service personnel to provide a
basic understanding of how the components function in the working
system.
The troubleshooting section of this manual is intended to provide a
quick reference concerning condition which result in customers
complaints.
We hope that technicians will repair LVM-074W without any problem
through our service manual.
SERVICE PREPARATION:
A clean work area at the start of each job is essential for efficient service
work. Tools need for the job should be ready for use before work is
started
2
The troubleshooting section of this manual is intended to provide a
quick reference concerning issues that occurs most frequently through
customer complaints.

1.SAFETY PRECAUTION
3
USE SET VOLTAGE.
- AC 100 ~ 240V (1.2A / 50~60㎐)
- DC 12 ~ 24V (MAX 6A)
SAFETY PRECAUTION ABOUT PARTS
- Some parts of this product should be handled with
cauon. User can find those parts in a circuit diagram
and part list.
Do not use aachments not recommended by the
manufacturer. Use of inadequate aachment can result
in accidents.
- Drawing can’t be revised without TVLogic’s permission.
SAFETY PRECAUTIONS ABOUT HANDING LCD MODULE
- Use screw holes on the corner when installing the
LCD module.
- Do not push the panel or frame and do not cause an
electric shock to protect the product from damages.
- When handling the LCD module, put an wrist band
to avoid the LCD module from stac electricity
which may cause damages to the electric
components.
- Do not leave the product in a hot or humid place for
a long me.
- Keep the LCD module away from direct rays of the
Sun-light.
- Keep away the product from water because it’s the
reason for short circuit and reducing life span of
electric components.
- Use socloths to wipe the surface of LCD module
when it gets dirty.(Do not use coarse cloths which
might cause damages to the LCD module.)
-If the product is exposed to water, you must wipe
the device with a dry cloth then dissemble the
device to dry.
SAFETY PRECAUTIONS ABOUT DISASSEMBLY
- Please use soft cloths or cushioned sponge
when you disassemble or assemble the
products.
- To separate the panel, release the screws
on the four corners then slowly lift up the
panel while removing the panel interface
cable.
- To separate the board, remove the cable
from it first, remove the bolt which is
holding down the board then separate.
Make sure the cable pin is firmly connected
to the connector while doing it.
SAFETY PRECAUTIONS ABOUT ASSEMBLY
- Please set torque at 2K of electronic screw
driver when you assemble LCD panel and
cases in order to avoid damages of screw
holes of case. This might cause changing
of whole case if you use over torque of
electronic screw driver.
- The connector should be handled with
caution because it is thin and weak. Wrong
connection causes malfunction of the
board and the panel.
WARNING
BE CAREFUL OF THE ELECTRIC SHOCK!
- Make sure to disconnect the adapter from
the AC power when replacing CCFL or
inverter circuit because high voltage about
650Vrms flows in inverter circuit.
- Do not make the cover of cables damaged
in order to avoid accidents such as a fire
and an electric shock. All the cables in
inverter circuit must be handled with
caution.
SAFETY PRECAUTIONS ABOUT DISASSEMBLY
- Please use so cloths or cushioned sponge when you
disassemble or assemble the products.
- To separate the panel, release the screws on the four
corners then slowly li up the panel while removing
the panel interface cable.
- To separate the board, remove the cable from it first,
remove the bolt which is holding down the board
then separate. Make sure the cable pin is firmly
connected to the connector while doing it.
SAFETY PRECAUTIONS ABOUT ASSEMBLY
- Please set torque at 2K of electronic screw driver
when you assemble the LCD panel and cases in order to
avoid damages of screw holes of case. This may cause
the whole case to change if you use over torque of
an electronic screw driver.
- The connector should be handled with cauon
as it is thin and fragile. Wrong connecon causes
malfuncon of the board and the panel.
WARNING
BE CAREFUL OF THE ELECTRIC SHOCK!
- Make sure to disconnect the adapter from the AC
power when replacing CCFL or inverter circuit
because high voltage about 650Vrms flows in the
inverter circuit.
- Do not damage the cable cover in order to avoid
accidents such as a fire or an electric shock. All the
cables in the inverter circuit must be handled with
cauon.
USE SET VOLTAGE .
- AC 100 ~ 240V (1.2A / 50~60Hz)
- DC 12 ~ 24V (MAX 6A)
SAFETY PRECAUTION ABOUT PARTS
- Some parts of this product should be handled with
cauon. User can find those parts in a circuit diagram
and part list.
- Do not use aachments not recommended by the
manufacturer. Use of inadequate aachment can result
in accidents.
- Drawing can’t be revised without TVLogic’s permission.
- Use holes on the corner when installing the
module.
SAFETY PRECAUTIONS ABOUT HANDLING LCD MODULE
- Use the screw holes on the corner when installing the
LCD module.
- Do not push the panel or frame and do not cause an
electric shock to protect the product from damages.
- When handling the LCD module, put an wrist band
to avoid the LCD module from stac electricity
which may cause damages to the electric
components.
- Do not leave the product in a hot or humid place for
a long me.
- Keep the LCD module away from direct rays of sunlight.
- Keep away the product from water because it’s the
reason for short circuit and reducing life span of
electric components.
- Use so cloths to wipe the surface of LCD module
when it gets dirty. (Do not use coarse cloths which
might cause damages to the LCD module.)
-If the product is exposed to water, you must wipe
the device with a dry cloth then dissemble the device
to dry.

4
2.CONTROLS & FUNCTIONS

5
3.MONITOR DRAWING

6
4.EXPLODED DIAGRAM

1) Loosen and remove all screws and
two stand knobs on both sides
of LVM-074W.
2) Loosen all screws on the main boards.
3) Remove two connectors on the main
board
4) Remove the LVDS cables both sides
7
5.1 DISASSEMBLY PROCEDURE
Separated
Picture
Separated
Picture

5) Remove all screws and separate Remote PCB.
7) Separate the panel and the Front
6) Remove all the screws on the LCD
Brackets.
8
5.2 DISASSEMBLY PROCEDURE
8) Separated Picture.

9
6.PRODUCT SPECIFICATIONS

10
7. PCB BLOCK DIAGRAM

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- The selectable functions are as follows
Menu Classification
Settable Values
PIN 1~6
NONE, ANALOG CHANNEL, DIGITAL A CHANNEL, DIGITAL B CHANNEL,
PBP CHANNEL, TALLY R, TALLY G, TALLY Y, UNDER SCAN, 1:1 SCAN,
ASPECT, H/V DELAY, BLUE ONLY, MONO, 16:9 MARKER, 4:3 MARKER,
4:3 ON AIR MARKER, 15:9 MARKER, 14:9 MARKER, 13:9 MARKER,
1.85:1 MARKER, 2.35:1 MARKER, 1.85:1&4:3 MARKER, CENTER MARKER,
SAFETY AREA 80%, SAFETY AREA 85%, SAFETY AREA 88%,
SAFETY AREA 90%, SAFETY AREA 93%, SAFETY AREA 100%, 708,
608(LINE 21), 608(ANC), DYNAMIC-UMD
<LVM-074W>
<GPI Remote>
- The location of each pin is shown on the right picture.
- PIN 7 is POWER ON/OFF use only, PIN 8 is GND.
8. CIRCUIT OPERATION

12
9. PROGRAM UPDATE – WEBHARD
TVLOGIC WEBHARD INFORMATION
If you need to upgrade new a firmware with TVLogic monitor,
please visit the TVLogic webhard at hp://tvlogic.webhard.co.kr/english
ID: dealer
Password: XXXXXXXXX
Please request the password from TVLogic overseas sales team.
the password may be changed without any noce.

13
1) Monitor Settings
- In the OSD Menu -> REMOTE -> Enter IP Address, Subnet Mask, Gateway value.
* Changing the PORT NO. is not recommended.
* Enter the IP Address of the connected internet with monitor.
* PASSWORD feature is available with Ver. 1.0 and above.
- Leave the monitor on.
2) Upgrade program settings
- Run XVM_COMM.exe
Picture 1 : Monitor upgrade SW=>
- Enter the same IP address as entered for the monitor. (See Picture 2)
* Changing the PORT NO. is not recommended.
- When “CON TEST“ button is pressed, Version number will appear in the
Ver. Box if connected properly. If not, “??” will appear in the box.
- If “??” appears, check the IP address for the monitor and program, then
try again.
10. 1 PROGRAM UPDATE WITH ETHERNET

14
3) Firmware update
- FPGA
Picture 2 : Update setting
* Select FPGA #1 for DEV in UPDATE PROCESS. Then, OPEN and select
the FPGA firmware file.
* Press the SEND button to start transferring the firmware file to the
Ethernet Board.
Picture 3: Transfer finished message window
* Once the transfer finishes, message window appears to confirm the
start of update.
10.2 PROGRAM UPDATE WITH ETHERNET

15
Picture 4: Update start message window =>
* Press the “OK” button to start updating.
Picture 5: CONFIG SUCCESS message window =>
* “CONFIG SUCCESS” message window appear when update is finished.
- CPU
* Select ARM/GEN for DEV in UPDATE PROCESS. Then, OPEN and select
the ARM/GEN firmware file.
* Press the SEND button to start transfer.
* Follow the above FPGA updating steps to finish the update.
10.3 PROGRAM UPDATE WITH ETHERNET

16
Picture 6 : ETHERNET BOARD Upgrade SW
- Connect the cable with the serial port of the PC and the RS232 port of monitor.
The PC must have the RS232 port and can not use the USB to RS232 converter.
See Picture 7 for the cable connecon.
- Select COM PORT.
- Select “14.7456MHz” for TARGET CLK.
- Select “2148B” for MCU TYPE.
- OPEN and select the “*.mot” file.
- Press the SEND buon.
4) How to Upgrade ETHERNET BOARD
10.4 PROGRAM UPDATE WITH ETHERNET BOARD

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2 : RX
3 : TX
4 : DTR
5 : GND
6 : DSR
7 : RTS
8 : CTS
2 : RX
3 : TX
4 : DTR
5 : GND
6 : DSR
7 : RTS
8 : CTS
MONITOR
RS232
MALE
PC
RS232
MALE
9 : RI 9 : RI
Picture 7: Cable connection for ETHERNET BOARD upgrade
10.5 PROGRAM UPDATE WITH ETHERNET BOARD
ETHERNET UPGRADE BOARD

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-Check the connection in PROGRAMMER STAUS.
-Select AUTO UPDATE from check box.
1) Install the CyUSB driver on your PC.
2) Turn on the monitor after connecting the PC with monitor by USB Cable.
3) Upgrade program settings
-Run LCD_PROG.exe
11.1 PROGRAM UPDATE WITH USB

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4) Firmware update
-FPGA
Picture 1: FPGA setting
* Select FPGA type form check box in PROGRAM STATUS.
* Select Bank0 from bank selecon window. Then click on file open buon to open
firmware file for FPGA.
* Click on DOWNLOAD buon to start download.
11.2 PROGRAM UPDATE WITH USB
CAUTION:
FPGA and CPU should be separately updated.
* Select the FPGA check box in PROGRAM STATUS.
* Select Bank0 from bank selecon window. Then click on the file open buon to
open the firmware file for FPGA.
* Click on the DOWNLOAD buon to start download.

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*** FPGA and CPU should be separately updated. ***
Selection UPDATE
BANK0(extension) FPGA_A(.bit) CPU/GEN(.a79)
BANK1(extension) XX X
Picture 2: Download complete message window
* Update will be proceeded aer Download complete. Update status appears in
SIZE/MSG
-CPU/GEN
* Select CPU/GEN type from check box in PROGRAM STATUS.
* Select Bank0 from bank selection window. Then click on file open button to open
firmware file for CPU/GEN.
* Click on DOWNLOAD button to start download.
(Follow the FPGA updating steps to finish the update.)
11.3 PROGRAM UPDATE WITH USB
* Update will be proceeded after Download complete. Update status appears in
SIZE/MSG
-CPU/GEN
* Select CPU/GEN type from check box in PROGRAM STATUS.
* Select Bank0 from bank selection window. Then click on file open button to open
firmware file for CPU/GEN.
* Click on DOWNLOAD button to start download. (Follow the FPGA updating steps
to finish the update.)