hat
Koulye a, retire kavalye la sou JP2 ak enstale li sou JP1. Aplike siyal la 1kHz 1V nan tou de chanèl. Kapte estasyon L5 pou maksimòm siyal 19kHz, li mete R45 pou ke siyal la pilòt sou sijè ki abòde lan se sou 10% anplitid la nan siyal la 1kHz. Koulye a, mete de sond yo sijè ki abòde sou rezilta yo nan U9A ak U9B, retire kavalye la soti nan JP1, ak rtouch L5 fè aliman faz yo nan de vag yo sinis, se konsa ke tren an travèse a zewo k ap pase nan egzakteman menm tan an. Ogmante benefis la sijè ki abòde sou siyal la 19kHz ede nan jwenn trase yo ki pi plis paralèl ak jwenn pi bon presizyon.
eng
Now remove the jumper on JP2 and install it on JP1. Apply the 1kHz 1V signal to both channels. Tune L5 for maximum 19kHz signal, and set R45 so that the pilot signal on the scope is about 10% the amplitude of the 1kHz signal. Now place the two scope probes on the outputs of U9A and U9B, remove the jumper from JP1, and retouch L5 to align the phases of the two sine waves, so that the zero crossing happens at exactly the same time. Increasing the scope gain on the 19kHz signal helps in getting the waveforms more parallel to obtain better precision.