BATTERY indicator Problem Items to check/Action

WL-50 English
Before using this unit, carefully read “USING THE UNIT SAFELY” and
“IMPORTANT NOTES” (the leaflet “USING THE UNIT SAFELY”). After reading, Charging. Performing A charging error occurred.
Owner’s Manual
keep the document(s) where it will be available for immediate reference.
Lit orange * The charging time differs depending on the When you plug the transmitter into your guitar, the transmitter 55 If the transmitter’s internal temperature
remaining battery charge and on the charging power-on automatically. rises, charging might pause.
environment. This occurs in order to protect the
BATTERY indicator rechargeable lithium-ion battery. When
Charging is completed, and the transmitter is in
Stable wireless communication with no dropouts (Auto Wireless Connection) standby mode. Unplug the transmitter. Lit green There is sufficient remaining battery capacity. the internal temperature falls, the
BATTERY indicator changes to be lit
Simply connect the transmitter with the receiver; the receiver scans the local state of the wireless spectrum and automatically * We recommend that you disconnect the Blinking
Standby mode. orange, and charging resumes.
chooses the optimal channel. transmitter after charging is completed. If you green
leave it connected, a small amount of power is 55 Could the ambient temperature be above
Blinking Lit orange Battery will be exhausted in less than two hours. The BATTERY 35°C?
Switches to standby mode when silence continues green
used from the battery, and the indicator blinks
Battery will be exhausted in less than 30 minutes. indicator blinks red Charging might stop for a while in order
green once every eight seconds. Lit red
When one hour passes without you playing your guitar, the transmitter enters standby mode. Please recharge. to protect the rechargeable lithium-ion
* If you have not used the transmitter for a battery. Use the unit in the recommended
long time, one charge might not be sufficient. ambient temperature range of 10–30°C.
Other parts and their function Disconnect and reconnect the transmitter to
Preparing the Receiver (WL-50) POWER indicator
complete charging. Switches to standby mode when silence continues 55 If the indicator continues blinking red
even though you are charging in the
When five hours have passed since charging When one hour passes without you playing your guitar, the
When the receiver’s power is on, this is lit. recommended temperature range
transmitter enters standby mode and ends the connection with
Attaching the rubber feet * When operating on batteries, this blinks
started, charging automatically stops in order
to protect the rechargeable lithium-ion battery, the receiver. The BATTERY indicator blinks green.
(10–30°C)
Contact your dealer or a Roland customer
when the batteries run low. Replace the Lit green even if charging was not completed. service center.
You can attach the rubber feet battery.
To charge completely, disconnect and reconnect Note when returning from standby mode
(included) if necessary. RECEIVE indicator the transmitter. When you raise the volume of your guitar and play it, the
Attach them in the locations
shown in the illustration.
This is lit during wireless communication.
TRANSMITTER jack Blinking red
A charging error occurred.
& “Troubleshooting”
transmitter returns from standby mode in approximately two
seconds. Main Specifications
Connect the transmitter here.
* Do not connect anything other than When not using the system for an extended time BOSS wireless system: WL-50
Preparing the power supply the WL-T transmitter made by BOSS.
Making Wireless Settings (Auto Unplug the transmitter. Standby mode does consume battery
If you connect headphones, high- RECEIVER
power, although only very slightly.
You can use either an AC adaptor (PSA-S series: sold separately) or
alkaline batteries.
volume sound might be emitted, or the
headphones might be damaged. Wireless Connection) Wireless Format
Wireless carrier
BOSS proprietary digital audio format

2.4 GHz
INPUT jack * Execute the following operation before you play your guitar. In frequency
Connecting an AC adaptor You can connect your guitar here. The input sound is
particular when you’re playing live or in a session, the wireless
conditions might change between the rehearsal and the actual
Turning the Power Off Compatible Channels 14 (May vary due to local conditions)
20 meters (65 feet) line-of-sight (May vary
IN jack output to the OUTPUT jack. If a guitar is connected, the Transmission Range
event, so you should execute the following operation once
Connect the AC adaptor (PSA-S series: sold wireless function is disabled, and the RECEIVE indicator
again before the actual event. 1. Minimize the volume of your guitar and of output due to local conditions)
separately) to the IN jack. is unlit. devices such as the amp, and then turn off the Latency 2.3 ms
OUTPUT jack Dynamic Range 110 dB or greater
* We recommend that you keep batteries
1. Connect the cable to the OUTPUT jack and power.
installed in the unit even though you’ll Connect this to your amp or effect unit. Frequency Response 20 Hz–20 kHz
be powering it with the AC adaptor. [CABLE TONE] switch
turn the power on. 2. Unplug the transmitter from the guitar. Nominal Input Level -10 dBu * 0 dBu = 0.775 Vrms
That way, you’ll be able to continue a
performance even if the cord of the AC
This simulates the effect that a guitar cable 2. Insert the transmitter into the TRANSMITTER 3. Unplug the cable from the receiver’s OUTPUT jack. Power Supply
Alkaline battery (AA, LR6) x 2,
has on the tonal character. jack. AC adaptor (sold separately)
adaptor gets accidentally disconnected
from the unit. During wireless operation: 60 mA
OUT jack
When an AC adapter is used, you can connect a PCS-20A parallel
[CABLE TONE] switch
This blinks orange while Auto Wireless
Connection settings are being made.
Troubleshooting Current Draw
While charging transmitter: 320 mA
The process completes in approximately 72 (W) x 121 (D) x 56 (H) mm
DC cord (sold separately) to supply power to effects processors OFF OFF Dimensions
10 seconds. Problem Items to check/Action
and other PSA-S adaptor-compatible gear. 2-7/8 (W) x 4-13/16 (D) x 2-1/4 (H) inches
Characteristics of a 3-meter (10-foot) guitar
SHORT When the orange blinking stops, remove Remove and reinsert the transmitter in the 220 g
* Power cannot be supplied from the OUT jack when the WL-50 cable Weight (including
the transmitter. guitar. battery)
is running on batteries. Characteristics of a 6-meter (20-foot) guitar 8 oz
LONG Could a cable be connected to the INPUT
* If you use the PCS-20A to supply power to devices that are cable Owner’s Manual
jack? The guitar connected to the INPUT jack
compatible with PSA-S adaptors, make sure that the total takes priority. Leaflet USING THE UNIT SAFELY
current consumption of all devices (including the WL-50) does Transmitter (*1)
not exceed the maximum output current of the PSA-S series
unit you’re using. The maximum output current is listed in the
Charging the Transmitter (WL-T) For stable wireless communication
Is the receiver too far away from the
transmitter? Alternatively, are there
Accessories Rubber foot x 4
Alkaline battery (AA, LR6) x 2
OUTPUT field of the label affixed to the adaptor itself. No sound when obstructions between them? Decrease
Use either method to charge. If audio dropouts occur, it might be that the local state of the *1: An AC adaptor (PSA-S series) is required
you play the the distance between the receiver and the
Charging from the receiver Charging from a USB AC wireless spectrum has changed. Execute the Auto Wireless to charge the transmitter (WL-T).
transmitter.
Installing alkaline batteries Connect an AC adaptor to the adaptor Connection operation once again. guitar in which
the transmitter is Could you be recharging transmitter from Options AC adaptor: PSA-S series
Remove the battery cover located on the back of the receiver, and IN jack, and connect the cable Connect a commercially Since the WL-50 uses a 2.4 GHz wireless system, we recommend
inserted the DC IN 5 V port? (sold separately) Parallel DC cord: PCS-20A (DC Plug x8)
install batteries in the correct polarity as indicated on the unit. to the OUTPUT jack. available USB cable and USB AC that you place the receiver at least three meters away from a Wi-Fi
router or other wireless device. Disconnect the USB cable when you’re
Then insert the transmitter into adaptor (5 V/0.5 A or higher) to
* If you handle batteries improperly, you risk explosion and fluid playing. TRANSMITTER (WL-T)
the TRANSMITTER jack. the DC IN 5 V port. Using a microwave oven might also cause audio dropouts due to
leakage. Make sure that you carefully observe all of the items Nominal Input Level -10 dBu
wireless interference. Is the transmitter’s BATTERY indicator lit? If it * 0 dBu = 0.775 Vrms
related to batteries that are listed in “USING THE UNIT SAFELY” * When charging from the
is unlit, recharge the transmitter. Rechargeable lithium-ion battery
and “IMPORTANT NOTES” (leaflet “USING THE UNIT SAFELY”). IN jack DC IN 5 V port, the wireless Power Supply
connection does not Using multiple wireless systems together Is the receiver’s RECEIVE indicator lit? If it is Supplied from the DC IN 5 V port
Turning the power on operate.
DC IN 5 V port (USB Micro-B
unlit, execute the Auto Wireless Connection
procedure.
Current Draw 350 mA
To prevent confusion between the wireless systems, perform the Battery charging time Approximately 3 hours
type) following steps. Could there be a different receiver or
When you connect a cable to the OUTPUT jack, the receiver’s 87 (W) x 22 (D) x 36 (H) mm
transmitter nearby? Dimensions
3-7/16 (W) x 7/8 (D) x 1-7/16 (H) inches
power turns on. 1. Power-off the BOSS wireless systems. Execute the Auto Wireless Connection
* To prevent malfunction and equipment failure, always turn 43 g
down the volume, and turn off all the units before making any
2. Power-on any wireless systems not made by BOSS, and set operation once again. Weight
2 oz
connections. them up so that there are no problems with their sound. If this does not solve the problem, it could
BATTERY The sound of a be that radio-frequency congestion on the * This document explains the specifications of the product at the
OUTPUT First wireless system unit made by BOSS
indicator different guitar is 2.4 GHz band is causing channels to conflict time that the document was issued. For the latest information,
jack
3. Power-on the receiver, insert the transmitter, and execute heard with another wireless system. refer to the Roland website.
the Auto Wireless Connection procedure. To reduce radio-frequency congestion, turn https://roland.cm/wl-50_spec
BATTERY indicator off the power of any unused Wi-Fi router,
4. Plug the transmitter into your guitar, making the BATTERY Bluetooth device, or microwave oven, and
The system is monitoring the local state of indicator light.
the 2.4 GHz wireless spectrum for 10 seconds, then execute the Auto Wireless Connection
Blinking Second and subsequent wireless system units made by BOSS operation once again.
and automatically making adjustments so that
orange
the receiver and transmitter can connect with
optimal stability (Auto Wireless Connection).
5. Repeat steps 3 and 4.
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