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� Procedure 2 Note: The adjustment results of this procedure differs according to the distance between the transmitter and rear speaker. Leave ample distance between the transmitter and rear speaker according to the user's using environment when performing the adjustment. Procedure: 1. Connect the transmitter to the front speaker and turn the power supply on. 2. Adjust IFT103 of the RECEIVER board, and adjust so that the voltage of the two ends of TP102 becomes 0V. (RECEIVING FREQUENCY adjustment) 3. Adjust RV102 of the RECEIVER board of the rear speaker until D109 turns green. (MUTING LEVEL adjustment) 4. Turn OFF the power turned on at STEP 1. 5. Check that D109 of the RECEIVER board of the rear speaker becomes red. If green, adjust RV102 so that it turns red, turn ON the power again, and repeat from step 3. 6. After adjusting, check that D109 becomes red when the power of the front speaker is turned OFF and it becomes green when the power is turned ON.
Reference Information: For this adjustment, the reaching distance of the infrared rays increases when the MUTING LEVEL (sensitivity) is raised, but if the power of the front speaker is turned OFF, pop noises are produced from the rear speaker. If the MUTING LEVEL (sensitivity) is dropped on the other hand, pop noises are reduced, but the reaching distance of the infrared rays decreases. Adjust according to the user's using environment.
[RECEIVER BOARD] � Component side �
JW107 JW108 JW132 JW109 JW110 RECEIVING FREQUENCY & IC104 MUTING LEVEL RV102 MUTING LEVEL TP102 JW111 JW112 JW133 JW113 JW114
TP8 L1 TP7 D1
SCN101
IFT103
RECEIVING FREQUENCY
JW115 JW116 JW117 JW118
JW119 JW120 JW121 JW122
[TRANSMITTER BOARD] � Component side �
IC202
CN201
L201 R226 TP5 TP6 CARRIER FREQUENCY
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