Sony UTX-B40 User Manual

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UHF Wireless Microphone Package

UHF Synthesized Transmitter

UHF Synthesized Wireless Microphone

UHF Synthesized Diversity Tuner

Operating Instructions

Before operating the unit, please read this manual thoroughly

and retain it for future reference.

UWP-D21/D22/D26/D27

UTX-B40

UTX-M40

UTX-P40

URX-P40

URX-P41D

5-042-114-11 (1)

© 2022 Sony Corporation

Table of Contents

Questions and Answers:

D
Darlene WrightSep 8, 2025
Why the transmitter channel cannot be set with infrared transmission on Sony Microphone system?
- M
  Melissa SmithSep 8, 2025
  If you cannot set the transmitter channel with infrared transmission on your Sony Microphone system, reduce the distance between the infrared receptor on the transmitter and the infrared transmission port on the tuner to within about 20 cm (8 in.). Also, place the transmitter and tuner as close to each other as possible to avoid interference from other devices or direct sunlight.
K
Kevin BoydAug 23, 2025
How to fix no sound on Sony Microphone system?
- D
  daniel92Aug 23, 2025
  If your Sony Microphone system isn't producing any sound, make sure the channel setting on the transmitter matches the tuner. Confirm the transmitter is on and reduce the distance between it and the tuner if the transmission output is weak. Ensure the transmitter is set to microphone input, not line level. The compander mode setting on both devices should be the same. Also, check if the transmitter is muted and change the MUTE SETTING if it is set to PTT HOLD.
J
Jordan KingAug 27, 2025
How to fix a Sony UTX-B40 that does not turn on?
- R
  Robert CollinsAug 27, 2025
  If your Sony Microphone system is not turning on, ensure the batteries are inserted with the correct polarity. Replace low batteries with new ones. Clean any dirt from the battery terminals and the battery compartment with a cotton swab. If using battery power, make sure batteries are inserted and the power source is set to 'BATT ONLY'. If using the SMAD-P5, check that it is correctly connected to the camera or tuner and that the power supplies for the tuner and camera are correctly linked.
W
watkinscynthiaAug 27, 2025
What to do if there is no sound from my Sony UTX-B40?
- W
  wintersstevenAug 27, 2025
  If there is no sound from your Sony Microphone system, verify that the channel setting is the same on both the transmitter and tuner. Confirm that the transmitter is on and reduce the distance between the transmitter and tuner. Ensure the transmitter is set to microphone input, not line level. The compander mode setting must be the same on both devices. Check if the transmitter is muted and release it by pressing the POWER/MUTE button. Review the MUTE SETTING menu and audio output connector settings. If using the SMAD-P5, ensure the Analog/Digital switch is correctly set. For microphones connected to the MIC INPUT, configure the microphone setting in the MIC SELECT menu to match the microphone type.
C
Courtney CooperAug 29, 2025
Why is the noise louder when connected with SMAD-P5 on my Sony UTX-B40 Microphone system?
- P
  penachristopherAug 29, 2025
  To resolve the issue of louder noise when connected with SMAD-P5 compared to the XLR-BMP conversion output cable on your Sony Microphone system, adjust the reference input level and reference recording level of the camcorder, or adjust the OUTPUT LEVEL on the tuner to set the appropriate audio level.
K
kmorrisAug 30, 2025
Why is the sound so weak on my Sony Microphone system?
- A
  Angela AguirreAug 30, 2025
  If the sound from your Sony Microphone system is weak, the attenuation level on the transmitter might be too high; adjust it to an appropriate level. Also, check the volume on the amplifier or mixer and adjust it accordingly. Ensure the transmitter is set to microphone input, not line level. The compander mode setting on the transmitter should match the one on the tuner.
J
Jill FoxSep 14, 2025
What to do if my Sony Microphone system does not turn off?
- S
  Susan FlemingSep 14, 2025
  If your Sony Microphone system is not turning off, try releasing the locked status in the POWER LOCK menu. Alternatively, set the POWER/MUTE menu to POWER/MUTE, or turn the unit off using the POWER button.
L
lweissSep 10, 2025
Why is the sound distorted on my Sony UTX-B40 Microphone system?
- M
  Mary MezaSep 12, 2025
  If the sound from your Sony Microphone system is distorted, the attenuation level on the transmitter might be too low or set to 0. Adjust the attenuation so that the audio is not distorted. If the GAIN MODE menu is set to 15dB BOOST, change it to prevent distortion. Ensure the channel setting is the same on both the transmitter and tuner. Use headphones with a stereo mini jack. If the OUTPUT MODE menu of the tuner is set to HIGH GAIN, change it to NORMAL. If the distortion occurs when using a microphone connected to the MIC INPUT connector, configure the microphone setting in the MIC SELECT menu to match the microphone type.
J
Jamie SampsonSep 7, 2025
Why transmitter channel cannot be set via NFC communication on Sony Microphone system?
- B
  Benjamin RobinsonSep 7, 2025
  If you are unable to set the transmitter channel on your Sony Microphone system via NFC communication, place the N-Marks approximately 5 mm from each other, ensuring they are facing each other and that there are no metallic or other objects nearby.
J
jamesstewartSep 4, 2025
What to do if Sony Microphone system does not turn off?
- A
  Adam KnoxSep 5, 2025
  If your Sony Microphone system does not turn off, release the locked status in the POWER LOCK menu. Alternatively, if the unit is set so that power cannot be turned on/ off using the POWER/MUTE button, set the POWER/MUTE menu to POWER/MUTE, or turn the unit off using the POWER button.

Sony UTX-B40 Specifications

General

Frequency Step Size	25 kHz
Muting	Yes
Line Level Input	Yes
RF Bandwidth	72 MHz
Channel Selection	Auto Scan, Manual
Audio Input Connector	3.5mm mini-jack
Power Source	2 x AA batteries
Battery Type	AA
Battery Life	Up to 10 hours
Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C to +60°C
Gain Range	-12 dB to +36 dB
Display & Indicators	LCD display, battery indicator, RF/Audio indicators

Summary

Package Configurations

UWP-D21 Package Details

Details the components included in the UWP-D21 wireless microphone package.

UWP-D22 Package Details

Details the components included in the UWP-D22 wireless microphone package.

UWP-D26 Package Details

Details the components included in the UWP-D26 wireless microphone package.

UWP-D27 Package Details

Details the components included in the UWP-D27 wireless microphone package.

Features

UWP-D21 Features

Highlights key features of the UWP-D21 wireless microphone package.

UWP-D22 Features

Highlights key features of the UWP-D22 wireless microphone package.

UWP-D26 Features

Highlights key features of the UWP-D26 wireless microphone package.

UWP-D27 Features

Highlights key features of the UWP-D27 wireless microphone package.

Name and Function of Parts

Body-pack Transmitter (UTX-B40) Parts

Identifies and describes the parts of the UTX-B40 body-pack transmitter.

Hand-held Microphone (UTX-M40) Parts

Identifies and describes the parts of the UTX-M40 hand-held microphone.

Plug-on Transmitter (UTX-P40) Parts

Identifies and describes the parts of the UTX-P40 plug-on transmitter.

Portable Diversity Tuner (URX-P40) Parts

Identifies and describes the parts of the URX-P40 portable diversity tuner.

Portable Diversity Tuner (URX-P41D) Parts

Identifies and describes the parts of the URX-P41D portable diversity tuner.

Power Supply

Battery Insertion Procedure

Step-by-step guide for inserting batteries into transmitters and tuners.

USB Power Supply

Details how to supply power using a USB connector for compatible devices.

Operation

Initial Setup and Pairing

Guide to connecting, powering on, and pairing via NFC SYNC.

Handling Noise and Interference

Steps to resolve noise issues and prevent interference.

Tuner Settings

Menu Structure and Operation

GP/CH (Group/Channel) Select

Selects the group and channel for the tuner.

PHONES (Monitor Audio) Setting

CLR CH SCAN (Clear Channel Scan)

ACT CH SCAN (Active Channel Scan)

OUTPUT LEVEL Setting

SYNC RX->TX (NFC Communication)

Transfers tuner settings to transmitter via NFC.

SYNC TX->RX (NFC Communication)

Reflects transmitter settings on tuner via NFC.

POWER SOURCE Setting

COMPANDER Setting

BATTERY TYPE Setting

FCT RESET (Factory Default)

UTILITY Menu (URX-P41D)

UTILITY Menu Functions

Adjusting Monitor Audio Level (PHONES)

Setting Audio Output Level (OUTPUT LEVEL)

RX1/2 Menu (URX-P41D)

Selecting Group/Channel (GP/CH)

Searching Available Channels (CLR CH SCAN)

Configuring Transmitter Settings (SYNC RX1(2)->TX)

Transfers tuner settings to transmitter via NFC or IR.

Transmitter Settings

Transmitter Menu Structure

Setting Transmit Channel (GP/CH)

Procedure for setting the group/channel on the transmitter.

Adjusting Audio Input Attenuation (ATTENUATOR)

Setting Audio Gain (GAIN MODE)

Setting Low-Cut Filter (LCF)

Switching Audio Input Level (INPUT LEVEL)

Setting Transmit Output Level (RF POWER)

Microphone Drive Power Supply (+48V SUPPLY)

Audio Muting Function (MUTE SETTING)

Audio Muting/Power Function (POWER/MUTE)

Setting Compander Mode (COMPANDER)

Setting Battery Type (BATTERY TYPE)

Restoring Factory Default Settings (FCT RESET)

System Configuration Example

Camcorder Integration Examples

Troubleshooting

Power, Channel, and Battery Issues

Troubleshooting steps for power, channel selection, and battery problems.

Audio and Distortion Issues

Resolving issues related to sound quality, distortion, and input levels.

Noise and Interference Issues

Addressing noise, interference, and weak signal issues.

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