Amp Adjustment; Confirmation Of Idling Current Of Amp Unit - Yamaha RX-V1500 Service Manual
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- Product catalog (44 pages) ,
- Owner's manual (104 pages) ,
- Owner's manual (700 pages)
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RX-V1500/DSP-AX1500
I AMP ADJUSTMENT
Confirmation of Idling Current of Amp
Unit
• Right after power is turned on, confirm that the voltage
across the terminals of R319 (Main Lch), R320 (Main
Rch), R325 (Center), R326 (SURROUND Lch), R327
(SURROUND Rch), R321 (SURROUND BACK Lch),
R322 (SURROUND BACK Rch) are between 0.1mV
and 10.0mV.
• If it exceeds 10.0mV, open (cutoff) R291 (Main Lch),
R292 (Main Rch), R295 (Center), R296 (Surround Lch),
R297 (Surround Rch), R293 (Surround Back Lch),
R294 (Surround Back Rch) and reconfirm the voltage.
Attention
If the idle current exceeds 10.0mV 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.
44
0.1mV ~ 10.0mV
(DC)
R319 (MAIN Lch)
R320 (MAIN Rch)
R325 (CENTER)
Cut off
R291 (MAIN Lch)
R292 (MAIN Rch)
R295 (CENTER)
R296 (SURROUND Lch)
R297 (SURROUND Rch)
R293 (SURROUND BACK Lch)
R294 (SURROUND BACK Rch)
0.1mV ~ 10.0mV
(DC)
R326 (SURROUND Lch)
R327 (SURROUND Rch)
R321 (SURROUND BACK Lch)
R322 (SURROUND BACK Rch)
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