XlI. MTS OPERATION CHECK 3. 1. STEREO/SA BROADCAST RECEIVING CHECK Preparation (1) Set the TV set so that a MTS broadcast (STEREO/SAP) can be received.
STEREO ST/SA ANT A 13
STEREO SEPARATION CHECK Preparation (1 ) Set the set so that a MTS broadcast (STEREO/SA) can be received. (2) Make surround �OFF�. (3) Set MTS MODE to �STEREO.� (4) Connect AUDIO OUT terminals L and R to an oscilloscope. Checking Procedure (1) When stereo L only signal (or R only signal) is received, check that the output level ratio of Lch and Rch is 15dB or more. (Example) When L only is received (100% modulation)
CH L R Output Level 1.2 Vpp 0.21 Vpp or less
(2) Set MTS mode to STEREO or SAP mode. Note: To select between �STEREO/SAP,� display sound setting of MTS mode and Select AUDIO MENU (3) Set BALANCE to the center. Checking Procedure (1) When one of the MTS broadcast stereo SAP is received, check that �ST� or �SA� is displayed on the screen. (2) Stereo broadcast receiving check (a) Select MTS mode and press cursor button to display �STEREO� on the screen. (b) When only Lch signal is received, Lch sound comes out from the left speaker. (c) When only Rch signal is received, Rch sound comes out from the right speaker. (d) When monaural signal is received, monaural sound comes out from both the right and left speakers. (3) SAP broadcast receiving check (a) Select MTS mode. Press cursor button to display �SAP� on screen. (b) SAP signal comes out from both of the right and left speakers. (c) When to SAP signal, the sound on �MAIN� side (refer to (3)) comes out. Note: When the RECALL button is operated, �STEREO�, �ST� or �SA� are shown for approx. 4 sec. 2. MTS MODE CHECK Preparation (1 ) Set the TV set so that a MTS broadcast (STEREO/SAP) can be received. (2) Set BALANCE to the center. Checking Procedure (1) When �MTS MODE� is set to �MONO� mode, check that STEREO indication which has been ON are turned OFF and that monaural sound comes out from the right and left speakers. (2) When �MTS MODE� is set to �STEREO� mode, check that the STEREO indication which has been OFF are turned ON and that STEREO and SA sound can be received.
