
ReceiverLink
ReceiverLink
ReceiverLink
ReceiverLinkReceiverLink
BatteryF/S
BatteryF/S
BatteryF/S
BatteryF/S
Precautions
Precautions
Precautions
PrecautionsPrecautions
Install two receivers on the aircraft as shown in the wiring diagram on the 
Link the two receivers using the dual receiver feature of the transmitter.
     For systems without dual receiver capability, link each receiver in turn.
Failuretofollowthesesafetyprecautionsmayresultinsevereinjurytoyourselfandothers.
Inordertopreventanyshortcircuits,pleaseobservethepolarityofall
Ensurethattheunitisconnectedproperlytothereceiver.
If the connector is disconnected during flight, it becomes inoperable.
Ensurethattheunitismountedinanareathatwilleliminateexposureto
As with any electronic components, proper precautions are urged to pro-
long the life and increase the performance of the unit. 
Allowaslightamountofslackintheunitcablesandfastenthemata
suitablelocationtopreventanydamagefromvibrationduringflight.
Besuretolinkthetworeceiverswiththetransmitter.
It will not work unless the two  receivers  are  linked. After startup, even if 
the link on one side is disconnected, the other side will continue to oper-
UsedinasetofFutabaS.BUS/S.BUS2systems.
DonotsupplyreceiverpowerfromtheESC.Whenusingthereceiver
powersupplytypeESC,removethered(+)cordofthe3chwiringfrom
theESCsothatthepowerisnotsuppliedfromtheESC.
Use a dedicated battery to power the receiver / servo.
Donotconnecttheservoandtelemetrysensordirectlytothereceiver.
Large current flows through the Rx port of DLPH-1 and is damaged. 
Donotconnectahighvoltagebatterybeyondthespecificationsofthe
There is a risk of explosion, fire and damage. 
Donotusemorethan60Aforamoment.
Reference: Although it  depends  on the  servo  used and flight  style,  acro 
flight with 15 HPS servos has been confirmed.  
To en su re tha t t he  DLPH- 1 i s f uncti on in g as de si re d, ple as e t es t
Do not fly until inspection is complete.
Beforetheflight,disconnectthewiringofthemainreceiverfromthe
DLPH-1thatisoperatingnormally,andcheckifthesubreceiveralone
Check if the DLPH-1 switches.
DonotusetheDLPH-1withanythingotherthananR/Cmodel.   
Transmitterinlinkmode Transmitterinlinkmode
ForFASSTest18CHSelect
dualmodeandlinkprimary
*Followthelinkprocedure
foreachreceivermanual.
ForFASSTest18CHSelectdual
Thank  you  for  purchasing  the  DLPH-1.  Before  using  your  new  DLPH-1,  please 
read this manual thoroughly and use the DLPH-1 properly and safely. After read-
ing this manual, store it in a safe place.
Use : Two receivers and two batteries communication 
Operating voltage : DC6.4 V to 13.0 V
 Switch / Receiver connection cord x 2
 / Mini screwdriver/ Flange damper / Eyelet / Wood screw 
Whenusingthedualreceiverfunction
・Thetelemetryfunctionofthemainreceiver
・Sub-receivertelemetryfunctionisnotavailable
Otherthandualreceiverfunction
・SettelemetrytoINH(disabled)
TwoS.BUS2/S.BUSReceivers
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HowtoUseWiring
HowtoUseWiring
HowtoUseWiring
HowtoUseWiring
HowtoUseWiring
Hobby Radio Control Business Center   Sales & Marketing Department
1080 Yabutsuka, Chosei-mura, Chosei-gun, Chiba-ken, 299-4395, Japan
TEL: +81-475-32-6051, FAX: +81-475-32-2915
©FUTABA CORPORATION     2021, 10 (1)
DonotsupplyreceiverpowerfromtheESC.Whenusingthe
receiverpowersupplytypeESC,removethered(+)cord
ofthe3chwiringfromtheESCsothatthepowerisnotsupplied
Use a dedicated battery to power the receiver / servo.
This receiver employs an electronic switching (current is controlled by an FET circuit) 
system. When  the  exclusive  switch  is set  to  ON or  is  pulled, the  power  is  turned  on. 
Switches  other  than the  exclusive  switch  cannot be  used.  In addition,  since  a  very 
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connector when the receiver is not in use. 
One or  2 batteries can be  connected. When 2 batteries are connected, the battery with 
the  highest  voltage  is  used.  When  only  one  battery  is  connected,  always  insulate  the 
unused connector. The battery can be connected to either side.
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Evenifthevoltageofone ofthe
batteriesdrops,powerissupplied
Evenifthepowersupplywiringof
oneofthebatteriesbreaks,power
issuppliedfromtheotherbattery.
Wh en the sw itc h is se tt o ON ,
pow eris supp lied f rom th e
batterywith thehighestvoltage.
Theoperatingtimeisthetotal
E l e c t r i c  p o w e r  w i l l  b e
automaticallyandalternatively
suppliedfromthebatterywhich
BatteryLED
BatteryLED
BatteryLED
BatteryLEDBatteryLED
Dualbatterysystem
Dualbatterysystem
Dualbatterysystem
DualbatterysystemDualbatterysystem
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Two  power supply  batteries can  be  connected  to  the  DLPH-1.  Power  is  supplied 
from the battery with the highest voltage. The operating time is the total time of the 2 
batteries. For example, even if the voltage of one battery drops, power can be supplied 
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Ifoneofthetworeceivers
becomesunreceivable,itwill
automaticallyswitchtothe
Upto18high-performanceservoscanbePWMconnected.
Do notconnectthe servo and telemetry
sensordirectlytothereceiver.
Thetwobatteriesshouldnotuse
Besuretoremovethebattery
Li-po3cell11.4Vcannotbeused
withFutabaHobbyServos.
T
T
T
Telemetryfunction(voltagedisplay)
elemetryfunction(voltagedisplay)
elemetryfunction(voltagedisplay)
elemetryfunction(voltagedisplay)Telemetryfunction(voltagedisplay)
The DLPH-1 is equipped with a telemetry sensor function. The receiver voltage displayed on the 
transmitter home screen is only a constant value. The voltages of battery 1 and battery 2 should 
be monitored by telemetry voltage. 
DLPH-1 uses two continuous slots. Please note that the proper default start slot for this accessory 
is number 6. When setup-changing or adding, it is the following numbers that are made to a start 
1,2,3,4,5,6,8,9,10,11,12,13,14,16,17,18,19,20,21,22,24,25,26,27,28,29,30
By connecting the transmitter and SB2 port, it is possible to register to the transmitter and change 
the  start  slot.  In  that  case,  it is  necessary to  connect the  battery to  DLPH-1 and  supply power. 
Information on how to change the slot assignment is included in the transmitter's manual.
Telemetry → Voltage T32MZexample
ReceiverBattery1Voltage
ReceiverBattery2Voltage
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Also, make sure that the battery F / S of the two receivers have the same 
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InstalltheDLPH-1inawell-
ventilatedplacetocoolit.
*Ifthebatterylevelis40-30%orless,
thereceiverwillnotturnonforsafety.
Besuretoswitchaccordingtothebatteryused.
Iftheswitchpositionandtheconnectedbatteries
aredifferent,powerwillnotbesupplied.