Yamaha DVX-S120 Service Manual page 20

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DVR-S120/NX-P120
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When checking the P.C.B.:
Turn on the power to NX-SW120 according to the following
procedure.
a. Short between the terminals of RY2 (relay).
b. Connect the power cable to the AC power outlet.
TE
L 13942296513
Short between these terminals for the P.C.B. check.
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P.C.B. MAIN (1)
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P.C.B.動作チェックをする場合
下記の方法により NX-SW120 に電源を投入します。
a. RY2 ( リレー) の端子間をショートします。
b. 電源コードを AC 電源コンセントに接続します。
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