
RX-V1900/HTR-6290/DSP-AX1900
70
RX-V1
90
0/HTR-6290/
DSP-AX1
90
0
●
Right after power is turned on, confirm that the volt-
age across the terminals of R467 (SURROUND BACK
Rch), R468 (SURROUND Rch), R469 (FRONT Rch),
R470 (CENTER), R471 (FRONT Lch), R472 (SUR-
ROUND Lch), R473 (SURROUND BACK Lch) are be-
tween 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
amplifier repair, first check for a defective component
before cutting the bias resistor.
●
Confirm that the voltage is 0.2 mV to 15.0 mV after 60
minutes.
● 電源投入直後、R467 (SURROUND BACK Rch)、R468
(SURROUND Rch)、R469 (
F R O N T R c h
)、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
Confirmation of Idling Current of Amp Unit
アンプユニットのアイドリング電流の確認
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
MAIN (1) P.C.B.
R473
R472
R471
R470
R467
R432
R433
R434
R435
R437
R438
R436
R468
R469
FRONT
REAR
Содержание DSP-AX1900
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