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Promaster ST1 Troubleshooting Manual

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  • Page 3: Table Of Contents

    Precautions Forward Parts Identification Basic Operation Transmitter operation Receiver operation Flash triggering Parameter control triggering mode Non-parameter control triggering mode Advanced Applications Shutter release function Firmware upgrade Troubleshooting Guide Specifications...
  • Page 4 Precautions 1. Do not attempt to disassemble open or repair this transceiver by yourself 2. Always use batteries of the same type brand and age Always replace both batteries at the same time Do not combine different types brands or new batteries This could cause the batteries to overheat leak explode...
  • Page 5 1/8000S. It can also control up to three flash groups. From the transmitter you can directly control the flash mode, output power, and focal length for each group.The ST1's remote distance can reach up to 100m while supporting 30 wireless channels and 1 auto channel.
  • Page 6 ■ Firmware can be upgraded through the USB interface ● Please read this manual while also referring to your camera and speedlight's instruction manuals. Included items: The ST1 comes with the following accessories. ■ Transceiver ■ Mini Stand ■ Manual...

  • Page 7: Parts Identification

    Parts Identification ① ② ④ ③ ⑤ ①Hot Shoe ②Test Flash/Shutter Button ③AF Assist Beam Emitter ④PC sync port / ⑤Hot Foot USB Interface...
  • Page 8 Parts Identification ① ② ⑦ ⑧ ③ ④ ⑨ ⑤ ⑥ ⑩ ①Status Indicator ②Power Switch ③Increase Button ④Battery Cover ⑤Decrease Button ⑥Confirm ‘OK’ Button ⑦Zoom Button ⑧Channel/Group Button ⑨Mode Button ⑩Locking Ring...
  • Page 9 Transmitter Display ② ③ ①Focal Length Area ②Group Function Mode Display Area ③Exposure Compensation/ Manual Output Display/Delay Time Area ④Channel Icon ⑤Transceiver Mode ⑥Camera Communication ⑦AF Assist Beam Emitter State ⑧Power Icon ⑨Sync Mode Display Area...
  • Page 10 Receiver Display ① ② ③ ④ ⑤ ① Focal Length Area ②Group Area ③Channel Icon ④Transceiver mode ⑤Power Icon...

  • Page 11: Basic Operation

    Basic Operation Inserting the batteries ① Open the cover. ② Slide it down as shown by the arrow to open. Installing the batteries. Make sure the + and - battery contacts are properly oriented as shown in the battery compartment. ②...
  • Page 12 Basic Operation Attaching to the camera Preparing to attach the transceiver. Loosen the locking ring by turning it in the direction of the arrow. Attaching the transceiver. Mount the transceiver into the camera’s hot shoe by sliding it in all the way. Securing the transceiver.
  • Page 13 Basic Operation Turning on the power Turn on the power. Turn the power switch to <ON>. Turn off the power. Turn the power swith to <OFF>. ● In order to save power, the Transmitter will enter a sleep state after a specified time (this time can be adjusted as a custom setting).
  • Page 14 15MIN: 15minutes 3 MIN: 30minutes custom options. 45MIN: 45minutes Finally, press the button for OFF: Function canceled approx . 2 seconds to exit the *Standby controls the length of time Custom settings menu. before the ST1 enters sleep mode.

  • Page 15: Transmitter Operation

    Transmitter operation Focal length setting ZOOM Press button to highlight ZOOM zoom A. Continue pressing the button to GR/CH highlight the B or C group and MODE control the zoom setting for that group. Press button to manually increase the zoom setting. ZOOM Press button to manually...
  • Page 16 Transmitter operation Group and mode settings GR/CH ZOOM Press button to highlight group A. GR/CH MODE MODE Press button to choose a flash mode for the group. ZOOM Press the button to choose a compensation GR/CH value for the group. MODE Press the button to...
  • Page 17 Transmitter operation Transmitter channel setting GR/CH Press the button ZOOM for 2 sec. to highlight GR/CH channel. MODE Press the button ZOOM to choose a channel. GR/CH Press the button to MODE confirm. ① If another photographer is using a similar type of wireless flash system close by, your receivers may accidentally fire in sync with that photographer’s transmitter.

  • Page 18: Receiver Operation

    Receiver operation Group setting MODE Press the button for ZOOM 2 sec. to switch to GR/CH receiver mode. MODE GR/CH Press the button to ZOOM highlight and select GR/CH the desired group. MODE Press the button to ZOOM confirm. GR/CH MODE...
  • Page 19 Receiver operation Receiver channel setting MODE Press the button for ZOOM 2 sec. to choose GR/CH receiver mode if you have not done so MODE already.. GR/CH Press the button ZOOM 2 sec. to highlight GR/CH channel. MODE Press the button ZOOM to choose a channel.

  • Page 20: Flash Triggering

    Flash triggering Before flash triggering, make sure the transmitter and receiver are on the same channel, and a flash is placed on each receiver's hotshoe. Testing Turn on the transmitter, receivers, and flashes. Press the transmitter's test button. All groups which have been selected will flash at once.

  • Page 21: Non-Parameter Control Triggering Mode

    Flash triggering Non-parameter control triggering mode Set the speedlight on the receiver to Manual or RPT mode. In this case the speedlight will work according to its own mode and settings. The transmitter will not control the flash mode or exposure compensation. The transmitter will, however, fire the flash.

  • Page 22: Advanced Applications

    Advanced Applications Shutter release function The ST1 can also be used as a wireless, remote shutter release for your camera. ①.Install a transceiver on the camera’s hot shoe, and use a shutter connecting cable to connect the transceiver's PC sync port to the camera.

  • Page 23: Firmware Upgrade

    Advanced Applications Firmware Updates The ST1 has a USB service port located next to its PC sync port. While the ST1 is designed to work with cameras presently available in the market, it may require firmware updates as new cameras and speedlights are released, or as cameras are updated with new firmware.

  • Page 24: Troubleshooting Guide

    Troubleshooting Guide Power does not turn on. ● Replace the batteries if they are low or out of power. ● Check that the batteries are installed in the correct orientation. The slave speedlight does not fire. ● Make sure all tranceivers are powered on and the speedlight is on and in a ready state.
  • Page 25 Troubleshooting Guide The picture is underexposed or overexposed. ● Be cautious of highly reflective objects (glass window, etc.) which can trick the camera's exposure meter. ● If the subject is very dark or very bright, you may need to use flash exposure compansation. ●...

  • Page 26: Specifications

    Specifications System type:Digital FSK 2.4GHz wireless controller Range: 100M Channels: 30 channels and 1 auto channel Flash modes:I-TTL, Manual , DT Sync modes: front-curtain sync, rear-curtain sync , FP sync Groups: 3 Groups(A/B/C) Shutter: Supports camera control camera single shooting Maximum sync speed: 1/8000S AF assist beam emitter: supported...

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