■
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 R1152 (SURROUND BACK
Rch), R1154 (SURROUND Rch), R1150 (FRONT
Rch), R1148 (CENTER), R1149 (FRONT Lch), R1153
(SURROUND Lch) and R1151 (SURROUND BACK
Lch) are within the confines of 0.1 mV to 10 mV.
2. If measured voltage exceeds 10 mV, open (cut off) R1090
(SURROUND BACK Rch), R1092 (SURROUND Rch),
R1088 (FRONT Rch), R1086 (CENTER), R1087 (FRONT
Lch), R1091 (SURROUND Lch) and R1089 (SURROUND
BACK Lch), 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 cutting the resistor.
3. Confirm that the voltage is within the confines of 0.2
mV to 15 mV after 60 minutes.
Front side
MAIN (1) P.C.B.
R1154
R1153
R1152
R1151
R1150
R1149
R1148
R1092
R1091
R1090
R1089
R1088
R1087
R1086
0.1 mV – 10 mV
(DC)
R1090 (SURROUND BACK Rch)
R1092 (SURROUND Rch)
R1088 (FRONT Rch)
R1086 (CENTER)
R1087 (FRONT Lch)
R1091 (SURROUND Lch)
R1089 (SURROUND BACK Lch)
R1152 (SURROUND BACK Rch)
R1154 (SURROUND Rch)
R1150 (FRONT Rch)
R1148 (CENTER)
R1149 (FRONT Lch)
R1153 (SURROUND Lch)
R1151 (SURROUND BACK Lch)
Open (cut off)
1. 電源投入直後、R1152 (SURROUND BACK Rch)、R1154
(SUR R O UND Rch)、R1150 (FR O N T Rch)、R1148
(CENTER)、R1149 (FRONT Lch)、R1153 (SURROUND
Lch)、R1151 (SURROUND BACK Lch)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、R1090 (SURROUND
BACK Rch)、R1092 (SURROUND Rch)、R1088 (FRONT
Rch)、R1086 (CENTER)、R1087 (FRONT Lch)、R1091
(SURROUND Lch)、R1089 (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 mV 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。
3. 60 分後、電圧が 0.2 mV 〜 15 mV であることを確認して
ください。
62
RX-V771
RX-V771
Содержание RX-V771
Страница 4: ...K model A model T model 4 RX V771 RX V771 ...
Страница 5: ...B G F models L H models J model H model 5 RX V771 RX V771 ...
Страница 6: ... REMOTE CONTROL PANELS RAV442 R A L H J models RAV443 T K B G F models 6 RX V771 RX V771 ...
Страница 99: ...MAIN 2 Side B MAIN 6 Side B A B C D E F G H I J 1 2 3 4 5 6 7 RX V771 99 ...
Страница 145: ... CONFIGURING THE SYSTEM SETTINGS RX V771 147 ...
Страница 146: ... システム設定を変更する RX V771 148 ...
Страница 147: ...MEMO 149 RX V771 RX V771 149 ...
Страница 148: ...RX V771 ...