Instructions Circuit Diagram
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H.4. IR-interface
H.4.1. YETI does not send symbols
Check polarity of IR-Diode D10.
CheckresistorR16220Ω(red,red,brown,gold)
H.4.2. YETI does not receive symbols
You will need a line of sight between IR-Transceiver and ASURO (at a distance of max.
50 cm) and the IR-Transceiver must be checked and OK (see chapter 6.1).
Check position and polarity of C2.
Check resistor R17 and C2.
470Ω(red,red,brown,gold)
100nF (imprint 104)
If you have not found the error yet, please remind the soldering of IC2. This component
is sensitive to overheating and may have been damaged while soldering. In this case
replace the component by a new IC (SFH 5110-36). When the transfer of data between
PC and ASURO is malfunctioning again and again, re-adjust trimmer TR1 in the
transceiver.
H.4.3. Things still do not work well
Check polarity of C8.
220µF/ at least 10V
If transfer of data between PC and YETI is malfunctioning again and again, re-adjust
trimmer TR1 in the transceiver.