Amp Adjustment - Yamaha RX-V100D Service Manual

I AMP ADJUSTMENT
Confirmation of Idling Current of MAIN (1) P. C. B.
• Right after power is turned on, confirm that each measured voltage across the terminals of R45 (FRONT Lch), R46
(FRONT Rch), R50 (CENTER), R47 (SURROUND Lch), R48 (SURROUND Rch), R49 (SURROUND BACK Rch) is
between 0.1 mV and 10.0 mV.
• If it exceeds 10.0 mV, open (cutoff) R38 (FRONT Lch), R39 (FRONT Rch), R37 (CENTER), R34 (SURROUND Lch), R35
(SURROUND Rch), R36 (SURROUND BACK Rch) and reconfirm the voltage.
Attention
If the measured voltage exceeds 10.0 mV. after an amplifier repair, first check for a defective component before cutting
the bias resistor.
• Confirm that the voltage is 0.2 mV ~ 15.0 mV. after 60 minutes.
0.1mV ~ 10.0mV
(DC)
R45 (FRONT Lch)
R46 (FRONT Rch)
R50 (CENTER)
Cut off
カット
R38 (FRONT Lch)
R39 (FRONT Rch)
R37 (CENTER)
R34 (SURROUND Lch)
R35 (SURROUND Rch)
R36 (SURROUND BACK Rch)
0.1mV ~ 10.0mV
(DC)
R47 (SURROUND Lch)
R48 (SURROUND Rch)
R49 (SURROUND BACK Rch)
RX-V100D
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