Yamaha RX-V377 User manual

SERVICE MANUAL
RX-V377/HTR-3067
1 0 1 2 9 7
AV RECEIVER
RX-V377/HTR-3067
'14.03
Note:
When the DIGITAL P.C.B. or IC222 on DIGITAL P.C.B. is replaced, this unit will display “Internal Error” and will not
operate properly. The model name and destination MUST be written to the backup IC (EEPROM: IC222 on DIGITAL
P.C.B.) to have proper operation. (For details, refer to “S5. SOFT SWITCH” menu of the self-diagnostic function.)
注意：
DIGITAL P.C.B. または DIGITAL P.C.B. のIC222 を交換すると、“Internal Error” が表示されて本機が正常に動作し
なくなります。正常に動作させるために、モデル名と仕向け先をバックアップ IC（EEPROM：DIGITAL P.C.B. の
IC222）へ書き込む必要があります。（詳細は、ダイアグの “S5. SOFT SWITCH” メニューを参照してください。）
■CONTENTS
TO SERVICE PERSONNEL ........................................... 2
FRONT PANELS ........................................................ 3–4
REAR PANELS ........................................................ 5–10
REMOTE CONTROL PANEL ........................................11
SPECIFICATIONS / 参考仕様 ................................ 12–16
INTERNAL VIEW ......................................................... 17
SERVICE PRECAUTIONS / サービス時の注意事項 .... 17
DISASSEMBLY PROCEDURES / 分解手順 .......... 18–21
UPDATING FIRMWARE /
ファームウェアのアップデート ........................... 22–25
SELF-DIAGNOSTIC FUNCTION /
ダイアグ（自己診断機能） .................................... 26–57
POWER AMPLIFIER ADJUSTMENT /
パワーアンプ調整 ...................................................... 58
DISPLAY DATA ...................................................... 59–60
IC DATA .................................................................. 61–70
BLOCK DIAGRAMS ............................................... 71–72
WIRING DIAGRAM ...................................................... 73
PRINTED CIRCUIT BOARDS ................................ 74–85
PIN CONNECTION DIAGRAMS .................................. 86
SCHEMATIC DIAGRAMS ...................................... 87–96
REPLACEMENT PARTS LIST ............................. 97–109
REMOTE CONTROL ........................................... 110–111
CONFIGURING THE SYSTEM SETTINGS .................112
システム設定を変更する .............................................113
FIRMWARE UPDATING PROCEDURE .............. 114–117
ファームウェア更新手順 .....................................118–121
IP

2
RX-V377/HTR-3067
RX-V377/HTR-3067
■TO SERVICE PERSONNEL
1. Critical Components Information
Components having special characteristics are marked ⚠ and
must be replaced with parts having specifications equal to
those originally installed.
2. Leakage Current Measurement (For 120V Models Only)
When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated
from supply circuits.
• Meter impedance should be equivalent to 1500 ohms shunted
by 0.15 μF.
WALL
OUTLET
EQUIPMENT
UNDER TEST
AC LEAKAGE
TESTER OR
EQUIVALENT
INSULATING
TABLE
• Leakage current must not exceed 0.5mA.
• Be sure to test for leakage with the AC plug in both polarities.
For U model
“CAUTION”
“F1501: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 6.3A,
250V FUSE.”
For C model
CAUTION
F1501: REPLACE WITH SAME TYPE 6.3A, 250V FUSE.
ATTENTION
F1501: UTILISER UN FUSIBLE DE RECHANGE DE MÉME TYPE DE 6.3A, 250V.
WARNING: CHEMICAL CONTENT NOTICE!
This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive
harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON
WHATSOEVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or
expose eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before
handling food.
About lead free solder / 無鉛ハンダについて
All of the P.C.B.s installed in this unit and solder joints are
soldered using the lead free solder.
Among some types of lead free solder currently available,
it is recommended to use one of the following types for
the repair work.
• Sn + Ag + Cu (tin + silver + copper)
• Sn + Cu (tin + copper)
• Sn + Zn + Bi (tin + zinc + bismuth)
Caution:
As the melting point temperature of the lead free solder is
about 30°C to 40°C (50°F to 70°F) higher than that of
the lead solder, be sure to use a soldering iron suitable to
each solder.
本機に搭載されているすべての基板およびハンダ付けに
よる接合部は無鉛ハンダでハンダ付けされています。
無鉛ハンダにはいくつかの種類がありますが、修理時に
は下記のような無鉛ハンダの使用を推奨します。
• Sn+Ag+Cu（錫 +銀+銅）
• Sn+Cu（錫 +銅）
• Sn+Zn+Bi（錫 +亜鉛 +ビスマス）
注意：
無鉛ハンダの融点温度は通常の鉛入りハンダに比べ 30 〜
40℃程度高くなっていますので、それぞれのハンダに合っ
たハンダごてをご使用ください。

3
RX-V377/HTR-3067
RX-V377/HTR-3067
■FRONT PANELS
RX-V377 (U, C, R, K, A, B, G, F, L, V, S, H, J models)
J model
U, C, R, K, A, B, G, F, L, V, S, H models
RX-V377 (T model)

4
RX-V377/HTR-3067
RX-V377/HTR-3067
HTR-3067 (U, C, R, K, A, G, F, L, S, H, J models)
J model
U, C, R, K, A, G, F, L, S, H models
HTR-3067 (T model)

5
RX-V377/HTR-3067
RX-V377/HTR-3067
■REAR PANELS
RX-V377 (U, C models)
RX-V377 (R, V, S models)
RX-V377 (T model)

6
RX-V377/HTR-3067
RX-V377/HTR-3067
RX-V377 (K model)
RX-V377 (A model)
RX-V377 (B, G, F models)

7
RX-V377/HTR-3067
RX-V377/HTR-3067
RX-V377 (L model)
RX-V377 (H model)
RX-V377 (J model)

8
RX-V377/HTR-3067
RX-V377/HTR-3067
HTR-3067 (U, C models)
HTR-3067 (R, S models)
HTR-3067 (T model)

9
RX-V377/HTR-3067
RX-V377/HTR-3067
HTR-3067 (K model)
HTR-3067 (A model)
HTR-3067 (G, F models)

10
RX-V377/HTR-3067
RX-V377/HTR-3067
HTR-3067 (L model)
HTR-3067 (H model)
HTR-3067 (J model)