Accuphase E-212 Service Information

Accuphase E-212 Service Information

Integrated stereo amplifier
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Authorized Technical Service Only
CAUTION /
These servicing instructions are for use by qualified personnel only.
To reduce the risk of electric shock do not perform any servicing
other than that contained in the operating instructions unless you are
qualified to do so. Refer all servicing to qualified service personnel.
ここに記載したサービスに関する指示事項は、サービスに関する資格を
有する者のみが使用するものです。感電防止の観点から、サービス資格
を有していない方は、取扱指示事項以外のサービスは絶対に行わないよ
うにして下さい。
Attention mark indicating critical components for safety.
Replacement must be made with identical parts of special part number.
このマークのついている部品は、安全上重要な部品です。
必ず指定されている部品番号の部品を使用して下さい。
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Summary of Contents for Accuphase E-212

  • Page 1 Authorized Technical Service Only 回 路 図 CAUTION / These servicing instructions are for use by qualified personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.
  • Page 2 EXPLANATION OF SURFACE PARTS Knob for VOLUME ツマミ (381-4406-04) Decoration Screw Front Arcylic 飾りネジ/2pcs. フロントアクリル Rubber Cushion (630-0304-14) (172-0117-13) ラバークッション Meter Washer (250-2021-04)/2pcs. メーター ワッシャ/2pcs. (250-2082-04)/1pce. (178-2034-00) (637-9045-04) Knob for INPUT ツマミ (381-4405-04) Push-button for POWER プッシュボタン (388-5044-03) Push-button for TONE,ATT Case Knob /SP,TONE,COMP,TAPE,BAL プッシュボタン/ MONO...
  • Page 3: Front View

    FRONT VIEW Knob for INPUT Knob for VOLUME ツマミ ツマミ (381-4405-04) (381-4406-04) Knob for SP,TONE,BAL, Head Phone Jack ツマミ / TAPE ヘッドフォーンジャック (384-1601-04) (302-1204-00) 3pcs. 1pce. 7 Push-button=389-5077-03 1 Front Panel=131-0162-01 プッシュボタン /TONE,MONO,ATT フロントパネル 3pcs. Coil Spring=285-1023-04 1pce. 2 Sub-panel =134-0131-03 3pcs.
  • Page 4 Power Transformer IO Relay Assembly パワートランス IOリレー Ass'y (510-3020-00) (716-0593-00) Protection Assembly プロテクション Ass'y (720-0062-00) Connector Board Assembly コネクタボード Ass'y Power Amp Assembly (716-0594-00) パワーアンプ Ass'y (717-0071-00) Power Amp Assembly パワーアンプ Ass'y Electrolytic Capacitor (717-0071-00) アルミ電解コンデンサ C001,002:22,000μF/63V (CE621WG1J223AAQ) Volume Assembly ボリューム...
  • Page 5 Rotary Switch Power Meter Pilot Lamp 1 ロータリスイッチ / S1 パワーメータ パイロットランプ/PL1,2,3 (339-0002-00) (178-2034-00) (176-7501-00) Input Selector Assembly Meter Connector A'y Receiver Assembly インプットセレクタ Ass'y メータコネクタAss'y 受光器Ass'y (716-0596-00) (716-0602-00) (721-0064-00) Variable Resistor 可変抵抗器/VR1:50kΩ-A (575-2020-00) Volume Assembly ボリューム Ass'y Selector LED Assembly (716-0595-00) セレクタLED Ass'y (716-0614-08)
  • Page 6: Input Selector

    MISCELLANEOUS( 本体その他使用部品 ) Description(部 品 名) Description(部 品 名) Parts No.(部 品No.) Remarks(備 考) Parts No.(部品No.) Remarks(備 考) PC Board for Screws for Front Panel / フロントパネル用 IO Relay Assembly ネジ類 Binding Screw/ バインドツメツキ 631-0047-00 3×8mm 4pcs. 115-1319-00 Connector Board Ass'y 115-1320-00 Volume Assembly Case / ケース用...
  • Page 7 IO Relay Assembly (716-0593-00) Ass'y RELAY6 RELAY1 RELAY7 RELAY4 RELAY2 RELAY3 RELAY5 Pin Jack 302-0411-00 JK1,2 Ceramic Capacitor C12,13 CC92CH1H220J 22pF/50V ピンジャック 302-0209-00 磁器コンデンサ C14,15 CC92CH1H100F 10pF/50V XLR(Canon) Receptacle 302-8011-00 JK3,4 Electrolytic Capacitor C1 ~7 CE04W1HR22VR 0.22uF /50V オーディオコネクタジャック アルミ電 解コンデンサ C8 ~11 CE04W1E220VR 22uF /25V...
  • Page 8 Tone Volume Assembly (716-0597-00) Ass'y Connector Plug 308-1014-00 コネクタプラグ 308-0209-00 308-0311-00 Rotary Switch 336-4010-10 ロータリスイッチ Variable Resistor 575-2405-10 VR1,2: 可 変 抵抗 器 Tape Switch Assembly (716-0598-00) Ass'y Connector Plug 308-0809-00 コネクタプラグ 308-0412-00 308-0311-00 Connector Jack 309-2235-00 コネクタジャックAss'y Rotary Switch 336-3010-10 ロータリスイッチ...
  • Page 9 Meter Connector Assembly (716-0602-00) Ass'y Connector Plug 308-0412-00 コネクタプラグ Power Switch Assembly (716-0603-00) Ass'y Fuse Holder 306-2001-00 FH1,2 コネクタプラグ Power Push Switch 354-1024-00 パワープッシュスイッチ Thermal Switch Assembly (716-0612-00) Ass'y Connector Plug 308-0209-00 コネクタプラグ Thermal Switch 369-0019-00 サーマルスイッチ Input Selector Assembly (716-0614-00) Ass'y Connector Plug 308-0708-00...
  • Page 10 Logic Assembly (721-0063-00) Ass'y K9 K10 K5 IC10 CE04W0J101VR C3,4:100uF /6.3V 308-0609-00 CE04W1H2R2VR C5,6:2.2uF /50V 308-1511-00 Electorlytic Capacitor CE04W1V4R7VR C11,12: 4.7uF /35V Connector Plug 308-0213-00 アルミ電 解コンデンサ CE04W1H100AVF C13,14: 10uF /50V コネクタプラグ 308-0708-00 CE04W1H100CA C17,18: 10uF /50V 308-0906-00 CE04W1H220VR C19,20,33,35:22uF/50V 308-0407-00 K6,10,11 CE04W1E222RS...
  • Page 11 Power Amp Assembly (71 7-0068-00) Ass'y Q1,3,2,4 Test Point R39,41 R38,40 PC Board 115-0133-00 CE04W2A4R7RBNC2 4.7uF /100V PCボード CE04W1HR47VR 0.47uF /50V Electorlytic Capacitor C4,5 CE04W1H100VP 10uF /50V Heat Sink 240-0077-03 アルミ電 解コンデンサ C6,7 CE04W1C101CA 100uF /16V ヒートシンク C8~11 CE04W2A471VR 470uF /100V C17,18 CE04W2C100RE3 10uF /160V...
  • Page 12 Notes ※1. Internal input resistance of volt-ohm meter should be higher than 10k-ohms. テ ス タ ー は 、入 力 抵抗10k Ω 以上 のもの をお使 い下 さい。 ※2. Adjustments should be made in case of the PC Board or Transistors being changed. 調整...
  • Page 13: Voltage Selector

    The unit can be used with differnt voltage of 100V,120V,230V. (Use the Japanese domestic model at 100V only, and never change the voltage in Japan.) Refer the photo and illustration for the wiring on the junction terminal as shown below, and have to select the correct fuse and power supply cord.
  • Page 14 Remote Commander リモートコマンダ RC-23 (729-0023-00) Top Board Battery :R6/UM3 天 地当 板 電 池 / 単3型 (803-0033-14) (569-0004-00) Case for RC-23 リモコンケース (801-0236-00) Poly Bag for Battery Sub Pad ビニール袋 / 電池用 サブパッド (812-0812-00) (803-0303-00) Side Pad (R) Side Pad (L) サイドパッドR サイドパッドL (803-0265-00)
  • Page 15 Volume Ass'y (716-0595-00) E-212 MASTER CIRCUIT DIAGRAM 308-0417-00 IC1001 NJM78M05FA AGND AGND to Logic Ass'y K Connector board Ass'y 308-0306-00 Option Board from ATT Ass'y K1 716-0594 AGND Input selector Ass'y Receiver Ass'y Head Phone Ass'y 716-0596 721-0064 from AGND Volume Ass'y Logic Ass'y 716-0601 AGND to TAPE SW.
  • Page 16 IO Relay Ass'y (716-0593-00) to CONNECTOR Ass'y K4 to LOGIC Ass'y K5 to TAPE SW Ass'y K1(pin1-4) 308-0407-00 308-0508-00 308-0905-00 Input Selector Ass'y IC1A IC1B UPC4570HA UPC4570HA (716-0596-00) R22 /1H R22 /1H R22 /1H R22 /1H R22 /1H R22 /1H R22 /1H RELAY1 RELAY5 RELAY6 RELAY7 RELAY2...
  • Page 17 Tape Switch Ass'y (716-0598-00) E-212 Connector Board Ass'y (716-0594-00) for Option Board K1 307-3204-00 307-0317-00 to TONE AMP Ass'y K1(pin1,2) Rec Off Source Tape +12V -12V R-IN R-IN 308-0324-00 AGND AGND VR1A L-IN 575-2312-10 L-IN -12V 336-2007-00 -12V RD3.0EB1 +17.5V 2SC2785_ -EL,FL 2SC2785_ -EL,FL +15.4V(+13.8V) 336-3010-10 +12V...
  • Page 18 Protection Ass'y (720-0062-00) to PHONES Ass'y K1 from POWER AMP output RELAY2 RELAY1 R7 362 3D TA7318P-2 221 3F to Logic K4(pin4-6) 362 3D 221 3F L-CH R-CH MA167 MA167 IC2 UPC1237HA RELAY3 R14 183 2H MA167 SP Common MA167 R26 221 <+56.1V <+54mA to PUSH SW Ass'y K4...
  • Page 19 Logic Ass'y (721-0063-00) to Meter Ass'y K1 L-ch to Meter Ass'y K1 R-ch to TAPE SW Ass'yK3 to SELECTOR LED Ass'y K1 for Volume Ass'y (Motor) to Input Sel. Ass'y K1 to Recever Ass'y K1 308-0508-00 308-0407-00 308-0407-00 308-0708-00 308-0606-00 308-0214-00 308-0407-00 C1 101 C9 101 C2 101...
  • Page 20: Specifications

    SPECIFICATIONS [Guaranteed specifications are measured according to EIA standard RS-490.] (両 チ ャ ンネ ル 同時 動 作 20~20,000Hz 間) 115 W/ch 4Ω 負 荷 (both channel driven, 20 - 20,000Hz) 105 W/ch 6Ω 負 荷 115 watts per channel into 4 ohms 90 W/ch 8Ω...

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