I'm very very very new for electronics design. I have a basic electronics knowledge but I know there 's many things I don't know in electronics symbol universe. I searched for reference circuit of CM103AH and I found it but I don't know what this jack is, Is it jack with LED ? I only know that 1 - 5 is a jack. Anyone can bring light to me what are 6, 7 and 8 ? or what is this type of jack called ?
It's probably a Mini-TOSLINK port which combines 3.5 mmm electrical stereo and optical S/PDIF / TOSLINK in one connector.
Pins 6, 7 and 8 are related to the laser diode of the TOSLINK output.
Combined 3.5 mm jack and mini-TOSLINK sockets exist which can accept a 3.5 mm jack or a mini-TOSLINK plug; mini-TOSLINK plugs are made 0.5 mm longer than electrical jack plugs so that the latter are too short to touch and damage the LED of combined connectors. Many laptop computer and portable digital audio equipment models, such as the Google Chromecast Audio device and Apple AirPort Express and iPod Hi-Fi, use these connectors that allow for the insertion of 3.5 mm electrical headphone output or microphone input or mini-TOSLINK digital output.
This is an adapter used to convert standard TOSLINK to Mini-TOSLINK. Note the typical 3.5mm jack form:
- The first part of the image is an AUX female connector (from 1 to 5).
- The second part is the bi color led (from 6 to 8).
My judgement would be
1 and 4 are the ground for AUX
2 and 3 are left and right channel for AUX
5 is unused
6 is ground for bi color led
7 is input for first color
8 is input for second color
The dotted line is the symbol for these parts to be coupled together, maybe encased alongside one another.
The similar circuit can be used to check if the connector is plugged in or not. If plugged in show green else show red color etc.