With the MPPT* algorithm ensuring close to 100% panel utilization and an efficiency up to 96.5%, the galvanic isolated solar charger sets new standards for renewable power in telecom. The behavior of the +13.8V feed on the Accessory Connector could be changed from being switched (as per this modification), or continuous, as found standard, depending on requirements.Eltek Flatpack2 48/1500 HE SOLAR Charger MOdule (Code: 241115.650) If desired, there is sufficient room inside the FT-817, next to the accessory socket, for a miniature toggle switch. This is perfect for activating an external relay in our peripheral device.Īs Q1104 is on the under-side of the PCB, and difficult to get to, it is much easier to take this switched feed from Q1082 emitter, as described above. Although this device is rated at 2A (with appropriate heat sinking), it would be wise to limit the current drawn from this point to 100 mA, or so. We get the switched +13.8V feed from the drain of Q1104, a 2SJ355 FET. This is made easier, by temporarily disconnecting the coaxial connector plugged into J1.ĭon’t forget to reconnect this plug, once you have soldered the wire!
Located near the antenna socket, identify the 0R link that needs to be removed, as indicated below.Carefully lift the top cover off towards the RHS of the radio, mindful of the short speaker lead.Unscrew top cover’s seven screws (top cover is cover with speaker).It’s just easier to work inside the 817 without this on. One 0R SMD link is removed, and a wire link is run to another part of the board – that’s it! Tweezers, suitable to extract 0805 sized SMD part.Small Philips head screwdriver to unscrew case.If your FT-817 layout does not look EXACTLY like the pictures here, you have a different version, and should proceed with caution, and only once you have identified the correct point to break into the Accessory Connector pin.
How the Main Unit PBA markings relate to the “Lot” numbers on the different schematic versions, who knows. Luckily, this modification became much easier, and the Main Unit does not need to be removed, as first thought.Įverything can be done from the top side of the PBA.
#Eltek flatpack2 connector socket Manual Pdf#
The Main Unit overlay in the downloaded FT-817 Service Manual pdf was found to be different to my FT-817 (purchased new, Feb 2011) in the vicinity of the accessory connector. This then allows us to switch peripheral equipment on and off accordingly, such as a transverter.īasic – intermediate: Requires SMD part removal, and fine soldering. In other words, whilst the FT-817 is connected to an external PSU, or has its own internal battery pack installed (and charged), +13.8V will always appear on this pin.įor some applications, it is more useful to switch this +13.8V feed on and off with the radio. The +13.8V feed appearing on the accessory connector is “always on”. Normally, the +12V appears on the ACC connector when it has internal batteries fitted or DC plugged into the rig.
#Eltek flatpack2 connector socket how to#
This describes how to modify a Yaesu FT-817, so that the +12V appearing on the accessory connector switches on and off with the radio.
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