TCL 65US5800 Chassis No: SX7 Service Number 65US5800NU0W Serial Number: 1607DAX160000602423

Hi,

the cause could be either but I'd like you to use several troubleshooting steps to attempt to overcome the issue first. A power cycle would be good to start with but only after removing any unnecessary accessories from the tv. If the issue persists, you can then run a channel scan before moving onto a factory reset. Otherwise, you might have to reach out to a technician from Geeksquad/BestBuy.

Thank you.

It is a budget set and you have no remote, so probably not an economical repair. Here is the Service Manual for it.

https://docplayer.net/11422315-Service-manual-model-21f1-chassis-nx56e-la.html

https://www.google.com/search?q=tcl+21f1

..

What exactly do you mean by "dark screen"? Is there a normal picture but its dark, or parts of the screen have a good pic and some areas are dark?

United States:

https://www.service-center-locator.com/tcl/tcl-service-center.htm

India:

https://www.tclindia.co.in/service-centers/

Philippines:

http://www.tclphilippines.com/tcl/service-center-tv/

https://www.google.com will give other locations.

Obtaining the Chassis Serial Number · On a standalone switch:
Log in to the switch through Telnet or the console interface, and then run the display elabel backplane command in the user view to view electronic label information. In the command output, the BarCode field indicates the chassis serial number.
<Quidway> display elabel backplane
Info: It is executing, please wait...
[BackPlane_1]
/$[ArchivesInfo Version]
/$ArchivesInfoVersion=3.0

[Board Properties]
BoardType=EH02BAKKBarCode=2102113089P0BB000881
Item=02113089
...............
· In a CSS:
Log in to the master switch through Telnet or the console interface, and then run the display elabel backplane chassischassis-id command (chassis-id specifies the CSS ID of a member chassis) in the user view to view electronic label information. In the command output, the BarCode field indicates the serial number of the specified chassis.
<Quidway> display elabel backplane chassis ?
INTEGER<1-2> Chassis ID

<Quidway> display elabel backplane chassis 2
Info: It is executing, please wait...
[BackPlane_2]
/$[ArchivesInfo Version]
/$ArchivesInfoVersion=3.0

[Board Properties]
BoardType=EH02BAKKBarCode=2102113089P0BB000881
Item=02113549
...............

NOTE:
The command syntax may differ in different software versions. You can enter a question mark (?) to obtain help information about the command and set the chassis ID according to the help information.
Obtaining the Serial Number of a Card Log in to the master switch through Telnet or the console interface, and then run the display elabel command in the user view and specify a slot ID according to help information to view the electronic label of a card. In the command output, the BarCode field indicates the serial number of the card.
<Quidway> display elabel ?
<1-1> The present chassis
backplane Backplane
brief Display information briefly
<Quidway> display elabel 1/?
<4,6-8> <CMU1>
<FAN1-FAN2> <PWR1-PWR2>
<Quidway> display elabel 1/6 brief
Info: It is executing, please wait...


[Slot_6]
/$[Board Integration Version]
/$BoardIntegrationVersion=3.0


[Main_Board]
/$[ArchivesInfo Version]
/$ArchivesInfoVersion=3.0


[Board Properties]
BoardType=ET1D2S08SX1EBarCode=020LVF6TBB000043
Item=03020LVF
...............
NOTE:
The command syntax may differ in different software versions. You can enter a question mark (?) to obtain help information about the command and set the slot ID according to the help information.
Obtaining the Serial Number of a Power Module Log in to the master switch through Telnet or the console interface, and then run the display elabel command in the user view and specify a slot ID according to help information to view the electronic label of a power module. In the command output, the SN field indicates the serial number of the power module.
<Quidway> display elabel ?
<1-1> The present chassis
backplane Backplane
brief Display information briefly
<Quidway> display elabel 1/?
<5,8,13,16> <CMU1>
<FAN1-FAN5> <PWR1-PWR4>
<Quidway> display elabel 1/PWR1
Info: It is executing, please wait...

[Slot_21]
/$[Board Integration Version]
/$BoardIntegrationVersion=3.0


[Main_Board]
DATE=13_02_08 SN=A664A0212080086V0.9A
NOTE:
The command syntax may differ in different software versions. You can enter a question mark (?) to obtain help information about the command and set the slot ID according to the help information.
Obtaining the Serial Number of a Fan Module Log in to the master switch through Telnet or the console interface, and then run the display elabel command in the user view and specify a slot ID according to help information to view the electronic label of a fan module. In the command output, the BarCode field indicates the serial number of the fan module.
<Quidway> display elabel ?
<1-1> The present chassis
backplane Backplane
brief Display information briefly
<Quidway> display elabel 1/?
<5,8,13,16> <CMU1>
<FAN1-FAN5> <PWR1-PWR4>
<Quidway> display elabel 1/FAN2
Info: It is executing, please wait...

[Slot_18]
/$[Board Integration Version]
/$BoardIntegrationVersion=3.0


[Main_Board]
/$[ArchivesInfo Version]
/$ArchivesInfoVersion=3.0


[Board Properties]
BoardType=LE02FCMC BarCode=2103010JTF0123456789
Item=02120995
...............
NOTE:
The command syntax may differ in different software versions. You can enter a question mark (?) to obtain help information about the command and set the slot ID according to the help information.

AFAIK Supermicro is not using Service tags like Dell or Lenovo. Instead they go by serial numbers. The location of the serial number depends on the type of the server:
Blade serial number (SBI... or SBA...) is located on the side
Blade Enclosure serial number (SBE...) is located on the rear side
CMM (chassis management module) serial number (SBM...) is located next to the latch
Rack-mountable chassis serial number is located on side of chassis by the sliding rail
4U Tower Chassis serial number sticker is located on the bottom side
Rack-mountable Systems' Serial Number is located at the rear side by I/O panel
Embedded Systems' Serial Number is located on the I/O panel

Check this website for more:
http://www.supermicro.com/support/SNGuide.cfm?sn=ss

Climb up into the tractor's seat. Look below the lower left-hand side and lower right-hand side of the steering wheel panel for the serial number. Certain older Ferguson tractors have the serial number stamped to a plate that is mounted to one of these areas of the steering wheel panel.

Serial Number Plate:

http://old20tractorparts.com/mf-165-tinwork-parts/1356-massey-ferguson-165-serial-number-plate.html

Inspect the left- and right-hand sides of the tractor's main frame. Certain older Ferguson tractors have the serial number stamped to a plate on the outside of one of these areas of the main frame.

Inspect the top of the transmission housing for the serial number. Certain older Ferguson tractors have the serial number stamped to a plate that is mounted to the top of the transmission housing.

Can you please check for any jammed buttons on the remote and/or control panel? Try switching on the TV manually, while removing the batteries from the remote. If you notice same problem, the area to be looked into is around the system control area: like dry solder, leaky/dry capacitors and this should be done only by a qualified service technician.

you need to look on the right side of the set (facing the front of the set) for a small label that says
model code...
serial number..
version..
if the version number is blank or PW01 you have the
L3 chassis.
if it says PU02 then you have the L620 chassis
also the L3 chassis has the ballast on a slight angle and the L620 has the ballast straight.

If the issue is occuring in the same place on all prints, try the imaging drum (can't remember if this printer even uses one) or the transfer belt/roller (not sure which it uses). If you phone Dell support, they should run you through troubleshooting and send you either of those parts free of charge if you are under warranty. If not, buy them anyways; they don't degrade over time (if kept in the dark) and can be saved for when the currently installed one runs out if you don't need it to fix this issue.