Belden Grass valley T2 4K Series User manual

www.grassvalley.com
T2 4K Series
Digital Recorder/Players
Service Manual
F3771909012
September 2019
Version 3.1.0

2T2 4K Series Service Manual September 1, 2019
Copyright Copyright 2012 - 2019 Grass Valley. All rights reserved. Portions of software © 2000 - 2019,
Microsoft Corporation. All rights reserved. This document may not be copied in whole or in part,
or otherwise reproduced except as specifically permitted under U.S. copyright law, without the
prior written consent of Grass Valley, Inc., 125 Crown Point Court Grass Valley, CA, 95945.
This product may be covered by one or more U.S. and foreign patents.
Grass Valley is a trademark of GVBB Holdings S.a.r.l.
Disclaimer Product options and specifications subject to change without notice. The information in this
manual is furnished for informational use only, is subject to change without notice, and should
not be construed as a commitment by Grass Valley, Inc. Grass Valley, Inc. assumes no
responsibility or liability for any errors or inaccuracies that may appear in this publication.
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Restricted Rights
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Software Restricted Rights clause at FAR 52.227-19, as applicable. Manufacturer is Grass
Valley, Inc., 125 Crown Point Court Grass Valley, CA, 95945 U.S.A.
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Belden, Belden Sending All The Right Signals and the Belden logo are trademarks or registered
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Grass Valley Web Site This public Web site contains all the latest manuals and documentation, and additional support
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http://www.grassvalley.com.
Manual Explanation • If there are any variations between the explanation in this manual and the actual application
method, priority is given to the actual application method.
• This manual is a common manual for T2 4K Series. Screenshots and illustrations in this
manual may vary from those of the actual product.
• The screenshots used as examples in this manual are those of the development stage, so
they may vary from those in the final product.
• This manual is written for users who have a basic knowledge of how to use a computer.
• If there are no special instructions, perform the same operation as a normal computer
operation.
• The contents of this product may modify without prior notice.
T2 4K Series Service Manual
Version 3.1.0
Copyright © 2018-2019 Grass Valley. All rights reserved.

September 1, 2019 T2 4K Series Service Manual 3
Contents
Contents ............................................................................................................... 3
Safety Summaries.............................................................................................. 5
Finding Information........................................................................................... 9
Chapter 1 Product Description
System Description ................................................................................................. 12
PC Subsystem.................................................................................................... 13
Front Subsystem ................................................................................................ 13
Video I/O Board Type ......................................................................................... 14
T2 orientation .......................................................................................................... 15
FRU locations ..................................................................................................... 15
Status indicators...................................................................................................... 16
Power LED ......................................................................................................... 16
LAN port LED status........................................................................................... 16
Chapter 2 Maintenance Procedures
Daily care of LCD touch screen............................................................................... 18
About T2 modes ...................................................................................................... 18
Access maintenance mode ................................................................................ 19
Exiting the maintenance mode ........................................................................... 20
Using the Maintenance Tools.................................................................................. 22
Closing the Maintenance Tools .......................................................................... 22
Media drive maintenance ................................................................................... 23
Data maintenance .............................................................................................. 26
System related maintenance .............................................................................. 32
Media drive RAID volume maintenance .................................................................. 36
Verifying the RAID status ................................................................................... 36
Building the RAID volume................................................................................... 38
Restoring to the factory default condition ................................................................ 49
Chapter 3 Troubleshooting Problems
Step 1: Check configurations .................................................................................. 52
Step 2: Check connections and external equipment ............................................... 52
Shutdown/restart problems ..................................................................................... 52
Checking external equipment.................................................................................. 53
PC monitor problems.......................................................................................... 53
Keyboard problems ............................................................................................ 53
Mouse problems ................................................................................................. 54
Motherboard/BIOS startup ...................................................................................... 54
T2 startup ................................................................................................................ 55
Thermal problems ................................................................................................... 55
Power supply problems ........................................................................................... 55
Common to all models........................................................................................ 55
Only T2 4K Elite.................................................................................................. 56
Front panel problems .............................................................................................. 56
LCD touch screen and operation buttons problems ........................................... 56
Front USB group unit problems .......................................................................... 57
Media card reader problems (T2 4K Elite only) ....................................................... 58
Timecode problems ................................................................................................. 59
Operational problems .............................................................................................. 59
Storage problems .................................................................................................... 60
Media File System problems .............................................................................. 60
Media drive problems ......................................................................................... 60
Checking the storage system ............................................................................. 61

4T2 4K Series Service Manual September 1, 2019
Contents
Chapter 4 Removing and replacing FRUs
Precautions before operations ................................................................................ 64
Required tools .................................................................................................... 64
Turning off the T2 and disconnecting the power cord ........................................ 64
Removing the top cover (rear) ................................................................................ 66
Removing the top cover (front)................................................................................ 67
Removing data HDD/SSD....................................................................................... 69
Data HDD/SSD SATA cable connection ............................................................ 70
Removing system SSD ........................................................................................... 71
Removing the power supply status LED board (T2 4K Elite only)........................... 72
Removing the media card reader assy (T2 4K Elite only)....................................... 74
Removing the front panel ........................................................................................ 76
Removing the Jog/Shuttle knob .............................................................................. 77
Removing the front USB group unit ........................................................................ 77
Removing the system USB stick ............................................................................. 80
Removing the LCD touch screen ............................................................................ 81
Removing the button kit .......................................................................................... 84
Removing RAM module .......................................................................................... 85
Removing the mid-cooling fan................................................................................. 86
Removing the front cooling fan ............................................................................... 89
Removing the rear fan............................................................................................. 90
Removing LTC/Monitor audio interface board ........................................................ 91
Removing the video I/O board ................................................................................ 93
Removing the remote interface board..................................................................... 94
Removing VGA card ............................................................................................... 95
Removing the power supply unit ............................................................................. 96
Removing the power supply unit enclosure ............................................................ 97
Index...................................................................................................................... 99

September 1, 2019 T2 4K Series Service Manual 5
Safety Summaries
General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to this
product or any products connected to it.
While using this product, you may need to access other parts of the system. Read the
General Safety Summary in other system manuals for warnings and cautions related to
operating the system.
Injury Precautions
Use Proper Power Cord
To avoid fire hazard, use only the power cord specified for this product.
Ground the Product
This product is grounded through the grounding conductor of the power cord. To avoid
electric shock, the grounding conductor must be connected to earth ground. Before
making connections to the input or output terminals of the product, ensure that the product
is properly grounded.
Do Not Operate Without Covers
To avoid electric shock or fire hazard, do not operate this product with covers or panels
removed.
Do Not Operate in Wet/Damp Conditions
To avoid electric shock, do not operate this product in wet or damp conditions.
Do Not Operate in an Explosive Atmosphere
To avoid injury or fire hazard, do not operate this product in an explosive atmosphere.
Avoid Exposed Circuitry
To avoid injury, remove jewelry such as rings, watches, and other metallic objects. Do
not touch exposed connections and components when power is present.
Product Damage Precautions
Use Proper Power Source
Do not operate this product from a power source that applies more than the voltage
specified.
Provide Proper Ventilation
To prevent product overheating, provide proper ventilation.
Do Not Operate With Suspected Failures
If you suspect there is damage to this product, have it inspected by qualified service
personnel.

6T2 4K Series Service Manual September 1, 2019
Safety Summaries
Battery Replacement
To avoid damage, a battery must be replaced once every five years. Please contact Grass
Valley Product Support to replace the battery.
Safety Terms and Symbols
Terms in This Manual
These terms may appear in this manual:
WARNING: Warning statements identify conditions or practices that can result in
personal injury or loss of life.
CAUTION: Caution statements identify conditions or practices that may result in
damage to equipment or other property, or which may cause equipment crucial to
your business environment to become temporarily non-operational.
Terms on the Product
These terms may appear on the product:
DANGER indicates a personal injury hazard immediately accessible as one reads the
marking.
WARNING indicates a personal injury hazard not immediately accessible as you read the
marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product
The following symbols may appear on the product:
DANGER high voltage
Protective ground (earth) terminal
ATTENTION – refer to manual
!
!
!

September 1, 2019 T2 4K Series Service Manual 7
Service Safety Summary
WARNING: The service instructions in this manual are intended for use by
qualified service personnel only. To avoid personal injury, do not perform any
servicing unless you are qualified to do so. Refer to all safety summaries before
performing service.
Do Not Service Alone
Do not perform internal service or adjustment of this product unless another person
capable of rendering first aid and resuscitation is present.
Disconnect Power
To avoid electric shock, disconnect the main power by means of the power cord or, if
provided, the power switch.
Use Care When Servicing With Power On
Dangerous voltages or currents may exist in this product. Disconnect power and
remove battery (if applicable) before removing protective panels, soldering, or
replacing components.
To avoid electric shock, do not touch exposed connections.
Certifications and Compliances
Canadian Certified Power Cords
Products that are relocated to other countries should use nationally certified power
cords and plugs to ensure safe operation of the product.
FCC Emission Control
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. Operation of this equipment in
a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense. Changes or modifications not
expressly approved by Grass Valley can affect emission compliance and could void the
user’s authority to operate this equipment.
Canadian EMC Notice of Compliance
This digital apparatus does not exceed the Class A limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian
Department of Communications.
This product must not be used in residential areas.
!

8T2 4K Series Service Manual September 1, 2019
Safety Summaries
EMC Directive
Class A Warning
This product must not be used in residential areas.
FCC Emission Limits
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesirable
operation.

September 1, 2019 T2 4K Series Service Manual 9
Finding Information
This Service Manual provides procedures for assessing and solving technical
problems and performing routine maintenance on your T2.
The T2 has two types of operation: Front Panel Mode and Workstation Mode. Front
panel mode allows you to operate the T2 using the touch screen or a mouse while
looking at the LCD touch screen. Workstation Mode allows you to operate the T2
using a mouse or keyboard while looking at PC monitor connected to the T2.
This service manual mainly documents procedures of the Front Panel Mode using a
mouse unless otherwise documented, procedures for operations with the Workstation
Mode are also the same as for the Front Panel Mode.
How this manual is organized
This Service Manual consists of the following:
Chapter 1, Product Description:
Describes system components, locations of the Field Replaceable Units (FRUs), and
status indicators of the T2.
Chapter 2, Maintenance Procedures:
Contains procedures for periodic maintenance.
Chapter 3, Troubleshooting Problems:
Contains problem descriptions with steps for diagnosing and correcting the cause of the
problem. Use this information if you are having trouble with your T2.
Chapter 4, Removing and replacing FRUs:
Contains procedures for removing and replacing the Field Replaceable Units (FRUs) .

10 T2 4K Series Service Manual September 1, 2019
Finding Information

September 1, 2019 T2 4K Series Service Manual 11
Chapter 1
Product Description
This chapter consists of the following:
•"System Description" on page 12
•"PC Subsystem" on page 13
•"Front Subsystem" on page 13
•"Video I/O Board Type" on page 14
•"T2 orientation" on page 15
•"FRU locations" on page 15
•"Status indicators" on page 16
•"Power LED" on page 16
•"LAN port LED status" on page 16

12 T2 4K Series Service Manual September 1, 2019
Chapter 1 Product Description
System Description
The T2 is Windows computer-based video disc recorder.
This section explains the major architectural blocks.
VGA card Video I/O
board
Remote
interface board
CPU Board
PC Subsystem
Front Subsystem
USB 2.0
USB 3.0
Front USB
group unit
Media Card
Reader Assy
Data
HDD/SSD
(Partition V:)
SATA#1
SATA#2
M.2 Slot
System USB stick
System
SSD
(Partition C: D:)
PCI Express Bus
Touchscreen,
Button kit,
Jog, Shuttle
Keyboard
Mouse
PC monitor
Front
Control
group unit
LCD Power switch,
Power LED,
Headphone jack,
Volume control,
Front USB
LAN port
*T2 4K Elite only
USB 3.0

September 1, 2019 T2 4K Series Service Manual 13
System Description
PC Subsystem
The PC subsystem is intended to run application software running on top of a
Windows OS.
This subsystem includes the following components:
•CPUboard
• Intel Core i7 processor
• 16GB DDR 4 memory
• 2x LAN ports
• System image USB stick
• Data HDD/SSD
• 2x monitor ports (DVI-D/DisplayPort)
• M.2 System SSD
• Power supply unit
• Video I/O board
• Remote interface board
4x RS-422, 1x GPIO
Front Subsystem
The front subsystem provides user interfaces such as LCD, Jog/Shuttle knob and
operation buttons.
This subsystem includes the following components:
• Front USB group unit
The front USB group unit interconnects power switch, power LED, headphone
jack, volume dial, two USB 3.0 ports.
• Front Control group unit
This board consists of operation buttons, Jog/Shuttle knob, and LCD.

14 T2 4K Series Service Manual September 1, 2019
Chapter 1 Product Description
Video I/O Board Type
The specifications of the mounted video I/O board differ depending on the model of
T2 4K Series.
Although they are different visually, the mounting/unmounting procedure is the same.
Video I/O board mounted on T2 4K Series (T2 4K Elite/T2 4K Pro/T2 4K Express)
T2 4K I/O Card Kit (SDI x8) which supports T2 4K Series Plus (T2 4K Elite (No I/O card)/
T2 4K Pro (No I/O card)/T2 4K Express (No I/O card))
Product name Model number
T2 4K Elite KTR4-ELT-CV40
T2 4K Pro KTR4-PRO-CV40
T2 4K Express KTR4-EXP-CV40
Product name Model number Model number of I/O Card Kit
T2 4K Elite (No I/O card) KTR4-ELT-CV00
KTR4-IO-CV80-KITT2 4K Pro (No I/O card) KTR4-PRO-CV00
T2 4K Express (No I/O card) KTR4-EXP-CV00

September 1, 2019 T2 4K Series Service Manual 15
T2 orientation
T2 orientation
FRU locations
The following illustration shows the location of Field Replaceable Units (FRUs) and
other components in the T2.
(1) (2)
(3)
(14)
(15)
(16)
(23)
(13)
(11)
(12)
(19) (21)(22)
(17)
(18)
(10)
(5)
(7)
(20)
(6)
(4)
(9)
(8)
Top view
(1) Top cover (front) (page 67)
(2) Top cover (rear) (page 66)
(3) LTC/Monitor audio interface board
(page 91)
(4) Video I/O board (page 93)
(5) Remote interface board (page 94)
(6) System SSD (page 71)
*Placed under Video I/O board.
(7) VGA card (page 95)
(8) Mid-cooling fan (page 86)
(9) Media Card Reader Assy (T2 4K Elite
only) (page 74)
(10) Power supply status LED board
(T2 4K Elite only) (page 72)
(11) Front USB group unit (page 77)
(12) System USB stick (page 80)
*Mounted on the front USB group unit.
(13) Rear fan (page 90)
(14) Power supply unit (page 96)
(15)
Power supply unit enclosure (  page 97)
(16) Data HDD/SSD (page 69)
(17) Front cooling fan (page 89)
(18) Front panel (page 76)
(19) Button kit (page 84)
(20) LCD touch screen (page 81)
(21) Jog knob (page 77)
(22) Shuttle knob (page 77)
(23) RAM module (page 85)

16 T2 4K Series Service Manual September 1, 2019
Chapter 1 Product Description
Status indicators
The following sections describe the visual indicators that communicate the current
operating status and system health of the T2.
Power LED
The Power LED indicates status as follows:
WARNING: The power switch does not turn off power to the system. To turn power
off, the system must be disconnected from the power source.
LAN port LED status
The RJ-45 LAN port includes integrated status LEDs. The LEDs oriented as follows:
The meanings of the LED states are described in the following table:
LED behavior Status Condition
Off The power is set to Off and the T2 is not operational.
Green steady on The power is set to On and the T2 is operational.
LED Color LED state Status Condition
Right Yellow Off LAN link is not established.
On LAN link is established.
Flashing The computer is communicating with
another computer on the LAN.
Left Green Off 10 Mbit/sec data rate is selected / No
connection has been detected.
On 100 Mbit/sec data rate is selected.
Orange On 1000 Mbit/sec data rate is selected.
!
Green/Orange LED Yellow LED

September 1, 2019 T2 4K Series Service Manual 17
Chapter 2
Maintenance Procedures
This chapter consists of the following:
•"Daily care of LCD touch screen" on page 18
•"About T2 modes" on page 18
•"Access maintenance mode" on page 19
•"Exiting the maintenance mode" on page 20
•"Using the Maintenance Tools" on page 22
•"Closing the Maintenance Tools" on page 22
•"Media drive maintenance" on page 23
•"Data maintenance" on page 26
•"System related maintenance" on page 32
•"Media drive RAID volume maintenance" on page 36
•"Verifying the RAID status" on page 36
•"Building the RAID volume" on page 38
•"Restoring to the factory default condition" on page 49

18 T2 4K Series Service Manual September 1, 2019
Chapter 2 Maintenance Procedures
Daily care of LCD touch screen
The LCD touch screen requires good daily care. Wipe away moisture, sweat,
fingerprint or dirt with a soft dry cloth.
About T2 modes
The T2 operates in the following modes:
• CommandCenter mode
The CommandCenter is automatically launched at startup.
• Maintenance mode
The CommandCenter application is closed and the Windows operating system
desktop is available for system operations such as data maintenance, RAID
volume maintenance, and software update.
CAUTION: The T2 is not a general purpose Windows workstation. The T2 is
designed so that a user can start it up without an administrator privilege to log on
to the system automatically. Do not modify any system settings unless approved by
Grass Valley. A partial or total system failure may result.
- Do not use the User Accounts on the T2.
- Do not install any third party software not provided by Grass Valley on the T2.
!

September 1, 2019 T2 4K Series Service Manual 19
About T2 modes
Access maintenance mode
CAUTION: You must terminate all of recording, playback, and file transfer
(import/export/FTP transfer) operations to stop accessing the media prior to
performing operations.
NOTE: If a keyboard and mouse have not been connected, shut down the T2,
connect a keyboard and mouse, and start up the T2. Refer to "Force start in
maintenance mode" on page 19.
1. Switch to 1ch View, touch Menu
, and then touch Tools  Maintenance .
• When operating in the workstation mode, click System from the menu bar and
then click Maintenance....
2. Touch the entry field on the password entry screen.
3. Enter "admin", and touch OK.
4. Touch OK.
5. Touch Yes when the confirmation message is displayed.
• The CommandCenter is closed and the system restarts in the maintenance
mode.
• After the restart, the Maintenance Tools is launched automatically.
Force start in maintenance mode
1. Turn on the T2 then immediately keep to press both SHTL/JOG and VAR button.
• Keep pressing the SHTL/JOG and VAR buttons until a message "Now
switching to Maintenance mode. The system is rebooting..." is displayed in the
LCD touch screen.
• The T2 will start in the maintenance mode.
!

20 T2 4K Series Service Manual September 1, 2019
Chapter 2 Maintenance Procedures
Exiting the maintenance mode
Returning to the CommandCenter mode
Once you finish T2 maintenance, use this procedure to return to the CommandCenter
mode.
1. In the Maintenance Tools main screen, select CommandCenter under "Next Boot
Mode".
2. Click Restart.
• Restart the T2 in the CommandCenter mode.
Restarting the T2 in maintenance mode
Use this procedure if you want to restart the T2 further maintenance.
NOTE: If the Maintenance Tools is not running in the maintenance mode,
performing the normal restart operation from the Windows desktop will restart your
system without exiting the maintenance mode.