81
RX-V683/RX-A770
RX-V683/RX-A770
■
POWER AMPLIFIER ADJUSTMENT /
パワーアンプ調整
1. Right after power is turned on, confirm that the
voltage across the terminals of R11
4
8 (SURROUND
BAC
K
Lch), R11
49
(SURROUND BAC
K
Rch), R11
5
0
(FRONT Lch), R11
5
1 (FRONT Rch), R11
5
2 (CENTER),
R11
5
3 (SURROUND Lch) and R11
54
(SURROUND
Rch) are within the confines of 0.1 mV to 10 mV.
2. If measured voltage exceeds 10 mV, remove R1100
(SURROUND BAC
K
Lch), R1101 (SURROUND BAC
K
Rch), R1102 (FRONT Lch), R1103 (FRONT Rch),
R110
4
(CENTER), R110
5
(SURROUND Lch), R1106
(SURROUND Rch), and then reconfirm the voltage.
Attention
If the measured voltage exceeds 10 mV after repairing
the power amplifier, check other parts again for any
possible defect before removing the resistor.
3. Confirm that the voltage is within the confines of
0.2 mV to 1
5
mV after 60 minutes.
1.
電源投入直後、
R11
4
8 (SURROUND BAC
K
Lch)
、
R11
49
(SURROUND BAC
K
Rch)
、
R11
5
0 (FRONT
Lch)
、
R11
5
1 (FRONT Rch)
、
R11
5
2 (CENTER)
、
R11
5
3 (SURROUND Lch) and R11
54
(SURROUND
Rch)
の端子間電圧を測定し、
0.1 mV
から
10 mV
の間
であることを確認してください。
2.
電圧が
10 mV
を超えている場合は、
R1100
(SURROUND BAC
K
Lch)
、
R1101 (SURROUND
BAC
K
Rch)
、
R1102 (FRONT Lch)
、
R1103 (FRONT
Rch)
、
R110
4
(CENTER)
、
R110
5
(SURROUND Lch)
、
R1106 (SURROUND Rch)
を外し、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 mV
を超えている場合は、
抵抗を外す前に故障箇所を調べてください。
3. 60
分後、電圧が
0.2 mV
〜
1
5
mV
であることを確認
してください。
0.1 mV – 10 mV
(DC)
SURROUND R
SURROUND L
FRONT R
FRONT L
CENTER
SURROUND
BACK R
SURROUND
BACK L
R1104 (CENTER)
R1106 (SURROUND Rch)
R1102 (FRONT Lch)
R1100 (SURROUND BACK Lch)
R1101 (SURROUND BACK Rch)
R1105 (SURROUND Lch)
R1103 (FRONT Rch)
R1152 (CENTER)
R1154 (SURROUND Rch)
R1150 (FRONT Lch)
R1148 (SURROUND BACK Lch)
R1149 (SURROUND BACK Rch)
R1153 (SURROUND Lch)
R1151 (FRONT Rch)
Front side
Front side
MAIN (1) P.C.B.
(Side B)
MAIN (1) P.C.B.
(Side A)
R1154
R1153
R1152
R1151
R1150
R1149
R1148
SURROUND R
SURROUND L
FRONT R
FRONT L
CENTER
SURROUND
BACK R
SURROUND
BACK L
R1106
R1105
R1104
R1103
R1100
R1102
R1101
Summary of Contents for Aventage RX-A770
Page 3: ...3 RX V683 RX A770 RX V683 RX A770 FRONT PANELS RX V683 ...
Page 4: ...4 RX V683 RX A770 RX V683 RX A770 RX A770 U C R T J models RX A770 A F models ...
Page 6: ...6 RX V683 RX A770 RX V683 RX A770 RX V683 A model RX V683 B G models RX V683 F model ...
Page 7: ...7 RX V683 RX A770 RX V683 RX A770 RX V683 L model RX V683 V model RX V683 S model ...
Page 8: ...8 RX V683 RX A770 RX V683 RX A770 RX V683 H model RX A770 U C models RX A770 R model ...
Page 9: ...9 RX V683 RX A770 RX V683 RX A770 RX A770 T model RX A770 A model RX A770 F model ...
Page 10: ...10 RX V683 RX A770 RX V683 RX A770 RX A770 J model ...
Page 11: ...11 RX V683 RX A770 RX V683 RX A770 REMOTE CONTROL PANEL RAV553 ...
Page 122: ...122 RX V683 RX A770 MEMO MEMO ...
Page 187: ...188 RX V683 RX A770 MEMO MEMO ...
Page 206: ...207 RX V683 RX A770 RX V683 RX A770 MEMO ...
Page 207: ...RX V683 RX A770 ...