71
RX-V1800/HTR-6190/DSP-AX1800
0.1mV - 10.0mV
(DC)
R432 (SURROUND BACK Rch)
R433
(SURROUND Rch)
R434 (FRONT Rch)
R435 (CENTER)
R436 (FRONT Lch)
R437 (SURROUND Lch)
R438 (SURROUND BACK Lch)
R467 (SURROUND BACK Rch)
R468 (SURROUND Rch)
R469 (FRONT Rch)
R470 (CENTER)
R471 (FRONT Lch)
R472 (SURROUND Lch)
R473 (SURROUND BACK Lch)
Open (cut off)
カット
FRONT
REAR
MAIN (1) P.C.B.
R473
R472
R471
R470
R467
R432
R433
R434
R435
R437
R438
R436
R468
R469
Confirmation of Idling Current of Amp Unit
• Right after power is turned on, confirm that the voltage
across the terminals of R
467
(
SURROUND BACK Rch
),
R468 (
SURROUND Rch
), R469 (FRONT Rch), R470
(CENTER), R471 (FRONT Lch), R472 (SURROUND
Lch), R473 (SURROUND BACK Lch) are between
0.1mV and 10.0mV.
• If it exceeds 10.0mV, open (cut off) R432 (
SURROUND
BACK Rch
), R433 (
SURROUND Rch
), R434 (FRONT
Rch), R435 (CENTER), R436 (FRONT Lch), R437
(SURROUND Lch), R438 (SURROUND BACK Lch) and
reconfirm the voltage.
Attention
If the measured voltage exceeds 10.0mV after an am-
plifier repair, first check for a defective component be-
fore cutting the bias resistor.
• Confirm that the voltage is 0.2 mV to 15.0 mV after 60
minutes.
アンプユニットのアイドリング電流の確認
● 電源投入直後、R467
(SURROUND BACK Rch)
、R468
(SURROUND Rch)、R469 (
FRONT Rch
)、R470
(
CENTER
)
、R471
(
FRONT Lch
)
、R472
(
SURROUND
Lch
)、R473 (
SURROUND BACK Lch
)の端子間電圧を
測定し、0.1mVから10.0mVの間であることを確認して
ください。
● 電圧が10mVを超えている場合は、R432 (SURROUND
BACK Rch)
、R433
(SURROUND Rch)
、R434
(
FRONT
Rch
)、R435 (
CENTER
)、R436 (
FRONT Lch
)、R437
(
SURROUND Lch
)、R438
(
SURROUND BACK Lch
)を
カットし、電圧を再確認してください。
注意
パワーアンプ修理後に10.0mVを超えている場合は、抵
抗をカットする前に故障箇所を調べてください。
● 60分後、電圧が0.2mV〜15.0mVであることを確認して
ください。
■
AMP ADJUSTMENT
/ アンプ部調整
Summary of Contents for RX-V1800
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Page 113: ...A B C D E F G H I J 1 2 3 4 5 6 7 RX V1800 HTR 6190 DSP AX1800 113 FL 2 P C B Side B...
Page 178: ...RX V1800 HTR 6190 DSP AX1800 179...
Page 179: ...RX V1800 HTR 6190 DSP AX1800 180...
Page 180: ...181 RX V1800 HTR 6190 DSP AX1800 RX V1800 HTR 6190 DSP AX1800...
Page 181: ...RX V1800 HTR 6190 DSP AX1800...