Icom IC 705 USB-C Control Board - Easy Upgrade!

Описание: This is a drop-in replacement control board (Connect Unit B-9128B) for the Icom IC-705 radio. Designed by Ben (KD9LJF), it is an easy upgrade for any IC-705 radio.

Orders can be placed on our online store. Hosted securely by Shopify. Our eBay listing will resume when we have items in stock. (eBay does not like preorders.) Also offering international shipping.
Shopify (Best Pricing): https://shop.ihelpu.tech/products/ico...

New installation guide here: https://ihelpu.tech/icom-705-usbcsend...

Please email [email protected] with any questions regarding warranty or installation.

The installation only requires removing nine Phillips-type screws and disconnecting the original control board. The upgraded control board has a USB-C port that retains all of the original port's functionality (including computer data).

The SEND/ALC circuit has also been upgraded for additional protection for connecting external amplifiers. The original board from Icom was only capable of switching less than 30mA of current on the SEND line. Connecting an amplifier that operates by switching 12V to ground would likely fry your original board as it did for mine. Our new control board has upgraded MOSFETs for the SEND line that can switch up to 1.0 amp of current. We also added a Zener diode to protect against voltage spikes above 16V. Our upgrade to this circuit makes your 705 compatible with most 12V amplifiers without additional adapters other than the TRS 3.5mm cable.

The USB-C Control Board has a one-year warranty on the USB and TRS connectors and a lifetime warranty on the rest of the control board. (Warranty does not cover any damages to the radio.) Free shipping is available to the continental US. We offer installation services through our experienced technicians at iHelpU.Tech in Illinois if you do not want to install the upgrade yourself. Please message us for details.

00:00 - Introduction
00:37 - Connecting Radio to Computer
02:25 - Stock Board vs. New Board
03:22 - Purpuse of Design
04:57 - Fault with stock desgin
07:00 - Opening the radio
10:11 - Removing the old board
12:41 - Installing new board
15:02 - Reassemblying the radio
16:53 - Verifying Install
18:40 - Conclusion