BG-EXH-4KC7
4K HDMI/USB-C over HDBaseT 3.0
Extender (100m) with USB/1G LAN
User Manual
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 2
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
TABLE OF CONTENTS
Statement 4
Safety Precaution 4
Surge Protection Strongly Recommended 4
Introduction 5
Features 5
Packing List 6
Specifications 7
EDID Setting List 9
Operation Controls and Functions 11
IR Pin Definition 15
API Command Control 16
ASCII Commands Reference Table 16
Command List 16
Front Panel Key Control 17
Network Access (USB-C) 17
Source Selection 18
Internal Pattern Generator 18
HDCP Settings 19
USB Configuration 19
Auto-Switching 20
EDID Management 21
Connection Diagram 22
Troubleshooting 23
Tech Support 24
Limited Product Warranty Terms 24
Mission Statement 24
Copyright 24
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 3
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
Statement
Please read these instructions carefully before connecting, operating, or configuring this
product. Please save this manual for future reference.
Safety Precaution
● To prevent damaging this product, avoid heavy pressure, strong vibration, or immersion
during transportation, storage, and installation.
● The housing of this product is made of organic materials. Do not expose to any liquid,
gas, or solids which may corrode the shell.
● Do not expose the product to rain or moisture.
● To prevent the risk of electric shock, do not open the case. Installation and maintenance
should only be carried out by qualified technicians.
● Do not use the product beyond the specified temperature, humidity, or power supply
specifications.
● This product does not contain parts that can be maintained or repaired by users.
Damage caused by dismantling the product without authorization from BZBGEAR is not
covered under the warranty policy.
● Installation and use of this product must strictly comply with local electrical safety
standards.
Surge Protection Strongly Recommended
This device contains sensitive electronic components that may be vulnerable to damage
from electrical spikes, surges, lightning strikes, or power fluctuations. To ensure optimal
performance and extend the lifespan of your equipment, we strongly recommend using a
quality surge protection system.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 4
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
Introduction
The BG-EXH-4KC7 HDMI extender is an ideal device for both local and remote
viewing purposes. It extends an HDMI signal to an impressive range of up to 40m
(132 feet). This makes this unit perfect for point-to-point digital signage applications
that demand high-quality HDMI video or in home applications such as extending a
game console HDMI connection as this unit supports resolutions of up to
4K@120Hz 4:4:4 with DSC function. Additionally, the extender is designed to extend
Infrared (IR) signals from remote controls, enabling convenient control of your video
source from your video destination.
Features
● HDCP 2.2 and DisplayPort 1.4a compliant, 18Gbps video bandwidth
● HDBaseT 3.0 design powered by VS3000 chipset
● Supports up to 4K@60Hz (YUV 4:4:4) per HDMI 2.0b
● 4K60/4K30/1080p transmission up to 328ft (100m) via CAT6A/7 (Standard Mode)
● 1080p 8-bit transmission up to 492ft (150m) via CAT6A/7 (Long Reach Mode)
● TX: 1x HDMI in, 1x USB-C in, 1x HDMI/HDBT out, 1x USB 3.2 host, 3x USB 3.2
clients
● RX: 1x HDBT in, 1x HDMI out, 4x USB 2.0 clients
● USB-C and HDMI inputs support auto/manual switching
● Auto switching via HDMI 5V or signal detection
● TX USB-C supports DP-ALT mode, USB 3.2, 1G Ethernet, and 100W charging
● USB-A ports enable VBUS only when host is connected
● Supports HDR, HDR10, HDR10+, Dolby Vision LLM, and HLG pass-through
● 4K to 1080p downscaling (no frame rate conversion) on HDMI output
● Analog audio de-embedding on both TX and RX
● RS-232 pass-through and API control
● RS-232/CEC for external device power control
● 1G Ethernet and bi-directional IR signal pass-through
● Advanced EDID management
● Bi-directional 24V PoC with switch (USB-C charging from TX power supply only)
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 5
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
Packing List
● 1× 4K HDMI/USB-C over HDBaseT 3.0
Extender – Transmitter
● 1× 4K HDMI/USB-C over HDBaseT 3.0
Extender – Receiver
● 2× 3-pin Phoenix Connectors (3.5mm, male)
● 2× 5-pin Phoenix Connectors (3.5mm, male)
● 4× Mounting Ears
● 8× KM3×6 Machine Screws
● 1× IR Blaster Cable (1.5m)
● 1× IR Receiver Cable (1.5m)
● 1× 24V/7.5A Desktop Power Adapter
● 1× User Manual
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 6
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
Specifications
Technical Specifications
HDMI Compliance
HDMI 2.0b
HDCP Compliance
HDCP 2.2
DisplayPort
Compliance
DisplayPort 1.4a
Video Bandwidth
18Gbps
Supported
Resolutions
640×480p60, 800×600p60, 1024×768p60, 1280×1024p60,
1360×768p60, 1440×900p/1050p60, 1600×1200p60,
720×480i/p59.94, 720×576i/p50, 1280×720p50/59.94/60,
1920×1080i50/59.94/60,
1920×1080p23.98/24/25/29.97/30/50/59.94/60,
3840×2160p23.98/24/25/29.97/30/50/59.94/60/100/120,
4096×2160p23.98/24/25/29.97/30/50/59.94/60
Color Space
RGB, YCbCr 4:4:4 / 4:2:2, YUV 4:2:0
Color Depth
8/10/12-bit
HDR Support
HDR, HDR10, HDR10+, Dolby Vision, HLG
IR Level
12Vp-p
Audio Formats
HDMI/USB-C/HDBT: LPCM 2/5.1/7.1CH, Dolby (Digital/Plus/EX,
TrueHD, Atmos), DTS (EX, 96/24, High Res, HD MA), DSD
Analog Audio: LPCM 2CH (32–192kHz)
Audio Output
Parameters
Impedance: 600Ω balanced, 300Ω unbalanced
Level: 8.2dBu (2Vrms) balanced, 2.2dBu (1Vrms) unbalanced
Freq. Response: 20Hz–20kHz (±0.5dB)
Dynamic Range: >90dB @ 0dBu
S/N Ratio: >90dB @ 0dBu
THD+N: <0.01% @ +4dBu
Delay: <1ms
USB Support
TX: USB 3.2 Gen 1 (5Gbps), backward compatible with USB 2.0
(480Mbps)
RX: USB 2.0 (350Mbps)
USB Ports
TX Host: 1x USB-C 3.2 Gen 1, 1x USB-B 3.2 Gen 1
TX Device: 1x USB-C 3.2 Gen 1, 2x USB-A 3.2 Gen 1
RX Device: 1x USB-C 2.0, 3x USB-A 2.0
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 7
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
USB Power Supply
TX Host: 1x USB-C (100W charging)
TX Device: 1x USB-C (1A), 2x USB-A (1.5A)
RX Device: 1x USB-C (1A), 3x USB-A (1A)
Transmission
Distance
HDMI/USB-C cable: 16.4ft (5m)
USB 3.2 Gen 1 cable: 5.9ft (1.8m)
CAT6A/7: 328ft (100m) @ 4K60 (Standard), 492ft (150m) @ 1080p
(Long Reach)
ESD Protection
±8kV (Air), ±4kV (Contact) — IEC 61000-4-2
Transmitter
Connections
Inputs: 1x HDMI, 1x USB-C
Outputs: 1x HDBT (PoC), 1x HDMI, 1x AUDIO
Control: 1x LAN, 1x RS-232, 1x USB-C (Service), 1x USB-B
(Host), 1x USB-C + 2x USB-A (Devices), 1x IR IN, 1x IR OUT
Receiver Connections
Input: 1x HDBT
Outputs: 1x HDMI, 1x AUDIO
Control: 1x LAN, 1x RS-232, 1x USB-C (Service), 1x USB-C + 3x
USB-A (Devices), 1x IR IN, 1x IR OUT
Mechanical Specifications
Housing / Color
Metal Enclosure / Black
Dimensions (W×D×H)
TX/RX: 8.2in × 4.8in × 0.87in / 208mm × 122mm × 22mm
Weight
TX: 1.51 lbs [687g], RX: 1.4 lbs [636g]
Power Supply
Input: AC 100–240V 50/60Hz
Output: DC 24V/7.5A (CE/FCC/UL certified)
Power Consumption
Max 173W (with USB-C charging, PoC to RX)
Max 73W (without USB-C charging)
Operating Temp
32°F to 104°F / 0°C to 40°C
Storage Temp
-4°F to 140°F / -20°C to 60°C
Operating Humidity
20%–80% (non-condensing)
Storage Humidity
10%–90% (non-condensing)
Recommended HDMI
Cable Length
4K60: 16.4ft (5m) 4K24: 33ft (10m) 1080p60: 49ft (15m)
Use Premium High-Speed HDMI cables
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 8
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
Note: In HDBaseT Long Reach Mode, due to bandwidth limitations, only USB HID devices
(such as keyboards and mice) are supported. USB 2.0 devices are not supported in this mode.
Additionally, when using the USB pass-through function, the serial baud rate may be limited.
EDID Setting List
DIP
Switch
Video Format
Audio Format
Description
0000
Auto Detect (Default)
Auto
Automatically selects optimal EDID
0001
HDMI 1080p @ 60Hz
2CH PCM
Standard Full HD with stereo audio
0010
HDMI 4K @ 30Hz, 4:4:4,
8-bit
2CH PCM
4K UHD at 30Hz, 8-bit color, stereo
audio
0011
HDMI 4K @ 60Hz, 4:4:4,
8-bit
2CH PCM
Smooth 4K with stereo audio
0100
HDMI 1080p @ 60Hz
5.1CH DTS/Dolby
Full HD with surround sound
0101
HDMI 1080p @ 60Hz
7.1CH
DTS/Dolby/HD
Full HD with advanced surround sound
0110
HDMI 4K @ 60Hz, 4:4:4,
8-bit
5.1CH DTS/Dolby
High-quality 4K with surround sound
0111
HDMI 4K @ 60Hz, 4:4:4,
8-bit
7.1CH
DTS/Dolby/HD
High-quality 4K with immersive audio
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 9
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
1000
HDMI 1920x1200 @
60Hz
2CH PCM
WUXGA resolution with stereo audio
1001
DVI 1920x1080 @ 60Hz
None
DVI video only (No audio)
1010
DVI 1920x1200 @ 60Hz
None
Higher res DVI video only (No audio)
1011
Pass-through (Copy
from TX)
As detected
Copies EDID from HDMI OUT on
transmitter
1100
Pass-through (Copy
from RX)
As detected
Copies EDID from HDMI OUT on receiver
1101
User Defined 1
Custom
User-loaded EDID profile 1
1110
User Defined 2
Custom
User-loaded EDID profile 2
1111
Software Controlled
Software Defined
EDID managed via software interface
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 10
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
Operation Controls and Functions
Transmitter Panels
No.
Name
Function Description
1
Power LED (Red)
Indicates the transmitter is powered on.
2
LINK LED (Green)
- On: Good connection between transmitter and receiver- Flashing: Poor
connection- Off: No connection
3
USB-C LED
(Green)
Lights up when the USB-C IN port is selected as the video input channel.
4
HDMI LED (Green)
Lights up when the HDMI IN port is selected as the video input channel.
5
SELECT Button
Press to switch between HDMI and USB-C video input.
6
IR IN
IR signal input port; connect to IR receiver cable.
7
IR OUT
IR signal output port; connect to IR blaster cable.
8
EDID DIP Switch
Used for EDID configuration. Refer to the EDID setting list. Note: Only
when the switch is set to 1111 can EDID be set via API commands.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 11
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
9
MODE Switch
Switches HDBaseT operating mode:- STD (Standard Mode): Default;
supports up to 4K60 over 100m (CAT6A/7)- LRM (Long Reach Mode):
Supports up to 1080p 8-bit over 150m (CAT6A/7)
10
USB Device Ports
Three USB 3.2 device ports (2× USB-A, 1× USB-C) for connecting
peripherals such as keyboard, mouse, or flash drives.
11
DC 24V Power
Input
Input for 24V/7.5A power adapter. Note: Supports PoC (Power over
Cable); only one of TX/RX needs to be powered.
12
LAN Port
1G Ethernet pass-through:- Yellow LED: Flashes at 1000Mbps- Green
LED: Flashes at 100Mbps
13
HDBaseT OUT
Connects to HDBaseT IN on the receiver via CAT6A/7 cable. Carries
HDMI, Ethernet, and USB signals.
14
Data Signal
Indicator (Yellow)
- On: Video signal with HDCP encryption- Flashing: Video signal without
HDCP- Off: No video signal transmission
15
Link Signal
Indicator (Green)
Same functionality as LINK LED (see item #2).
16
HDMI OUT
HDMI loop-out port for local video display.
17
HDMI IN
HDMI video input port for the source device.
18
USB-C IN
USB Type-C port with 4 functions: - Video signal input - USB 3.2 Gen 1
data transmission (when selected) - 100W charging (only when TX is
powered) - 1G Ethernet access
19
USB HOST
USB 3.2 Gen 1 host port; connect to PC.
20
AUDIO OUT
Analog audio output port: - Balanced: L+, L–, GND, R+, R– (up to 2Vrms) -
Unbalanced: L+, GND, R+ (up to 1Vrms)
21
RS-232
Serial port for signal pass-through and API control.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 12
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
22
SERVICE Port
USB 2.0 Type-C port used for firmware updates and API control.
23
PoC Switch
Enables or disables 24V Power over Cable: - ON (default): PoC enabled -
OFF: Local 24V power supply required
Receiver Panels
No.
Name
Function Description
1
Power LED
Red LED indicates the receiver is powered on.
2
LINK LED (Green)
On: Good connection between transmitter and receiver. Flashing:
Poor connection. Off: No connection.
3
IR IN
IR signal input port, connect to IR receiver cable.
4
IR OUT
IR signal output port, connect to IR blaster cable.
5
USB Device Ports
Three USB 2.0 ports (2 × USB-A, 1 × USB-C), for mouse, keyboard,
flash drive, or other USB devices.
6
DC 24V Input
24V/7.5A DC power supply input. Supports PoC (Power over Cable):
Only one unit (transmitter or receiver) requires power.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 13
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
7
LAN Port
1G Ethernet pass-through. Yellow LED: 1000Mbps. Green LED:
100Mbps.
8
HDBaseT IN
Connects to HDBaseT OUT on the transmitter via CAT6A/7 cable.
Transfers HDMI, network, and USB signals.
9
Data Signal Indicator
(Yellow)
On: Video signal with HDCP encryption. Flashing: Video signal without
HDCP. Off: No video signal.
10
Link Signal Indicator
(Green)
Same status as LINK LED: On: Good connection. Flashing: Poor
connection. Off: Not connected.
11
HDMI OUT
HDMI signal output, connect to TV, monitor, or other HDMI display
device.
12
USB DEVICE
USB 2.0 port for connecting mouse, keyboard, flash drive, or other
USB device.
13
AUDIO OUT
Analog audio output supporting: - Balanced: L+, L-, GND, R+, R- (up
to 2Vrms) - Unbalanced: L+, GND, R+ (up to 1Vrms)
14
RS-232
RS-232 serial port for signal pass-through and API command control.
15
SERVICE Port
USB 2.0 Type-C port used for firmware updates and API command
access.
16
PoC Switch
24V PoC (Power over Cable) toggle switch: ON: PoC enabled (default).
OFF: PoC disabled—requires local DC power.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 14
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
IR Pin Definition
The definitions for the IR Receiver and Blaster pins are provided below:
Note:
● When the angle between the IR receiver and the remote control is within ±45°, the
effective transmission range is 0–5 meters.
● When the angle is within ±90°, the range extends up to 0–8 meters.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 15
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
API Command Control
This product supports control via API commands for flexible integration with external
systems. To get started, connect the product to a PC or control system using one of the
following methods:
● RS-232 Control: Use a 3-pin Phoenix connector cable to connect the product’s
RS-232 port to your PC or control system.
● USB-C Control: Use a USB-C cable to connect the product’s SERVICE port directly
to a PC.
Once connected, launch a serial command tool on your PC and send ASCII commands to
control the device. A complete list of supported ASCII commands is provided below.
ASCII Commands Reference Table
Interface
Description
Baud Rate
Data
Bit
Stop
Bit
Parity
USB-C
(Service Port)
Virtual RS-232 for internal
debugging (command line)
115200 (Fixed)
8
1
None
Phoenix
RS-232
For external control systems
2400~115200
(Configurable)
8
1
None
Command List
Command
Code
Description
Example
Feedback
Default
? / help
List all available
commands
? or help
List all commands
–
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 16
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
get fw version
Get firmware versions
get fw
version
TX FW v1.00.00 RX FW
v1.00.00
–
set reboot
Reboot the device
set reboot
Rebooting...
Initializing... Done
–
set reset
Factory reset
set reset
Prompt to confirm with
“Yes”
–
get status
Get system status
get status
Returns system info
–
Front Panel Key Control
Command Code
Description
Example
Feedback
Default
set tx key on/off
Enable/disable TX front panel
key
set tx key on
Set TX key
on
On
get tx key
Get TX front panel key status
get tx key
On or Off
On
Network Access (USB-C)
Command Code
Description
Example
Feedback
Default
set tx Usbc
AccessNetwork
on/off
Enable/disable
USB-C network
access
set tx Usbc
AccessNetwork
on
Set TX USB-C
access
network on
On
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 17
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
get tx Usbc
AccessNetwork
Get USB-C network
access status
get tx Usbc
AccessNetwork
On or Off
On
Source Selection
Command
Code
Description
Example
Feedback
Default
set tx source
x
Set input source (0~4) x=0: Off, 1:
USB-C, 2: HDMI, 3: AVMute, 4:
Pattern
set tx
source 1
Set TX source
to USB-C
1
get tx source
Get current input source
get tx
source
USB-C, HDMI,
etc.
–
Internal Pattern Generator
Command
Code
Description
Example
Feedback
Default
set tx pattern
x y
Set resolution and pattern
x=16 (resolutions), y=112
(patterns)
set tx
pattern 1 2
Set TX pattern
4K60Hz
checkboard
–
get tx pattern
Get current pattern generator
setting
get tx
pattern
TX pattern 4K60Hz
checkboard
–
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 18
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
HDCP Settings
Command
Code
Description
Example
Feedback
Default
set tx input x
hdcp y
Set HDCP on input
(x=0~2), y=0: Off, 1: 1.4, 2:
2.2
set tx input 0
hdcp 2
TX all inputs
HDCP 2.2
HDCP
2.2
get tx input x
hdcp
Get HDCP status of inputs
get tx input 0
hdcp
Status per input
–
set tx output x
hdcp y
Set HDCP on output
(x=02), y=03 modes
set tx output 2
hdcp 1
Set TX HDMI
output HDCP
auto
Auto
get tx output x
hdcp
Get HDCP status of
outputs
get tx output 0
hdcp
HDCP status per
output
–
USB Configuration
Command
Code
Description
Example
Feedback
Default
set tx usb x
Set USB source: 0=Follow
video, 1=USB-C, 2=USB-B
set tx usb 0
Set USB source to
follow video
0
get tx usb
Get current USB source
get tx usb
Follow video,
USB-C, etc.
–
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 19
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
get tx usbh5v x
Get USB host input 5V status
get tx usbh5v
0
Power status of
USB inputs
–
set tx usbd5v x
to y
Set USB device 5V output
(03), y=02
set tx usbd5v
0 to 1
Follow host, etc.
1
get tx usbd5v
x
Get USB device 5V output
status
get tx usbd5v
0
Status per port
–
Auto-Switching
Command
Code
Description
Example
Feedback
Default
set tx
autoswitch
on/off
Enable/disable
auto-switching
set tx
autoswitch on
Set TX
autoswitch on
On
get tx
autoswitch
Get auto-switching
status
get tx
autoswitch
On or Off
On
set tx
autoswitch
mode x
Set mode: 0=5V
detection, 1=Signal
detection
set tx
autoswitch
mode 1
Signal
detection
Signal
detection
get tx
autoswitch
mode
Get current
auto-switching mode
get tx
autoswitch
mode
Signal
detection, etc.
–
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 20
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
EDID Management
Command
Code
Description
Example
Feedback
Default
set tx edid x
to y
Assign EDID to input
(x=02), preset (y=119)
set tx edid 0
to 1
Set EDID to HDMI
1080p@60Hz, 2CH
1
get tx edid x
Get current EDID of input
get tx edid 0
EDID info per port
–
get tx edid
data x
Get raw EDID data from
input
get tx edid
data 1
Hexadecimal data or
block
–
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 21
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
Connection Diagram
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 22
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
Troubleshooting
Problems
Causes
Solutions
No Power / All LED off
Power supply not connected,
connected fully, or wrong power
supply.
Check if the power supply is
connected correctly and the
output voltage value is within
recommended specifications.
No sound or sound issues
The HDMI connection is faulty,
the audio format is not
supported by the displays, or
the source player is set to
another port for audio output
Check if the HDMI cables are
connected correctly.
Check if the audio format is
supported by the display and
that a user has not changed the
supported audio format on the
player`s audio output. Ensure
output settings from the HDMI
source device as set correctly.
No picture or picture flickers
The HDMI cable may be faulty
or the category cable quality is
faulty.
Check if the HDMI
and category cable connections
are correct and undamaged.
Change to another good
working HDMI cable or category
cable (CAT6 or better cable is
recommended).
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 23
BZBGEAR BG-EXH-4KC7 PRODUCT MANUAL
Tech Support
Have technical questions? We may have answered them already!
Please visit BZBGEAR’s support page (bzbgear.com/support) for helpful information and
tips regarding our products. Here you will find our Knowledge Base
(bzbgear.com/knowledge-base) with detailed tutorials, quick start guides, and step-by-step
troubleshooting instructions. Or explore our YouTube channel, BZB TV
(youtube.com/c/BZBTVchannel), for help setting up, configuring, and other helpful how-to
videos about our gear.
Need more in-depth support? Connect with one of our technical specialists directly:
Phone
1.888.499.9906
Email
support@bzbgear.com
Live Chat
bzbgear.com
Limited Product Warranty Terms
Pro Line: 5-year warranty from the date of purchase for AV/Broadcasting products bought
on or after August 1, 2024.
Essential Line: 3-year warranty from the date of purchase for AV/Broadcasting products
bought on or after August 1, 2024.
Cables: Lifetime Limited Product Warranty.
For complete warranty information, please visit bzbgear.com/warranty.
For questions, please call 1.888.499.9906 or email support@bzbgear.com.
Mission Statement
BZBGEAR is a breakthrough manufacturer of high-quality, innovative audiovisual equipment
ranging from AVoIP, professional broadcasting, conferencing, home theater, to live
streaming solutions. We pride ourselves on unparalleled customer support and services.
Our team offers system design consultation, and highly reviewed technical support for all
the products in our catalog. BZBGEAR delivers quality products designed with users in
mind.
Copyright
All the contents in this manual and its copyright are owned by BZBGEAR. No one is allowed
to imitate, copy, or translate this manual without BZBGEAR’s permission. This manual
contains no guarantee, standpoint expression or other implies in any form. Product
specification and information in this manual is for reference only and subject to change
without notice.
All rights reserved. No reproducing is allowed without acknowledgement.
Address: 830 National Drive #140, Sacramento, CA 95834, USA · Tel: +1(888)499-9906 · Email: support@bzbgear.com 24
