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Daily dumps : remote pin
Well, the news are rather good.
It seems the remote pin (#17) has the effect of activating/deactivating most CDC activities. Once it's not at 12V, the CDC doesn't send any frame nor any SPDIF output. I didn't check, but I'm pretty sure disk stops playing too.
The good news is that once pin 17 is back at 12V, the CDC starts sending frames again and the head unit allows you to switch back to CDC if you like without being turned off and on again.
Here's the operations log I did tonight :
(Head unit was previously turned off while playing from the CDC, then once it was off, I disconnected pin 17)
0 : Start capture
15 : Turn HU On (it immediately switches to radio)
30 : Attempt to change source to CDC (unsuccessful)
45 : Reconnect pin 17 to the HU's pin 17
60 : Attempt to change source to CDC (successful)
75 : Change source to radio
80 : Disconnect pin 17 from the HU's pin 17
105 : Attempt to change source to CDC (unsuccessful)
120 : Reconnect pin 17 to the HU's pin 17
135 : Attempt to change source to CDC (successful)
150 : Disconnect pin 17 from the HU's pin 17 while playing CD (music stops immediately. After a few seconds, the HU displays "LINK ERR" :-) but doesn't switch to another source now
165 : Reconnect pin 17 to the HU's pin 17 : music restarts where it stopped. Head Unit immediately displays the TR #/CD # again
180 : Turn HU off
(Note : there are again CRC errors in this file, but they only happen when pin 17 changes state, so I guess it's pretty normal, particularly seeing the spikes it probably generates)
Happy decoding :-)
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