If you MUST clean PCB with chemicals it is recommended that you test on one board and then confirm the module still works after the process, prior to adding it to production, while understanding the above affects washing the populated PCBs can have on the module. We do not recommend chemical cleaning and cannot guarantee it will not damage the modules. However, if water washing is required you will need to use deionized water.

Ultrasonic cleaning could damage the module permanently.

The solvent could also damage any stickers or labels.

Cleaning with alcohol or a similar organic solvent will likely flood soldering flux residuals into the RF shield, which is not accessible for post-washing inspection. As you can see in my case it has bcdDevice 75.58: Bus 008 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 224 Wireless bDeviceSubClass 1 Radio Frequency bDeviceProtocol 1 Bluetooth bMaxPacketSize0 64 idVendor 0x0a12 Cambridge Silicon Radio.

Water could also damage any stickers or labels. The combination of soldering flux residuals and encapsulated water could lead to short circuits between neighboring pads. Bus 008 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) Couldn't open device, some information will be missing Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 224 Wireless.

Cleaning with water can lead to capillary effects where water is absorbed into the gap between the host board and the module. Orico Bluetooth 4.0 Adapter (BTA-402-BK) supports apt-x.

Residuals under the module cannot be easily removed with any cleaning process. In general, cleaning the populated modules is strongly discouraged. ITSE01014 03 BTM74x v2 3 1 280 0 UART Upgrade.zipīluetooth Development Kit Terminal Download.zipĪpplication Note - Guidelines for Replacing Antennas v1.0 Bus 001 Device 007: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1. Hardware Schematic - BT740 Carrier Board.pdf Quick Start Guide - BT740 Development Kit.pdf Application Note - BT7x0 Carrier Board.pdfĪpplication Note - BT740 Development Kit.pdfĪpplication Note - Bluetooth Latency and Data.pdf

Cambridge radio bluetooth