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Yamaha A-S2100 Service Manual

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This manual has been provided for the use of authorized Yamaha Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifi cally Yamaha Products, are already known
and understood by the users, and have therefore not been restated.
WARNING:
IMPORTANT:
The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and service
departments of Yamaha are continually striving to improve Yamaha products. Modifi cations are, therefore, inevitable and specifi cations
are subject to change without notice or obligation to retrofi t. Should any discrepancy appear to exist, please contact the distributor's
Service Division.
WARNING:
IMPORTANT:
■ CONTENTS
TO SERVICE PERSONNEL ............................................2
FRONT PANELS .............................................................3
REAR PANELS ...........................................................4-6
REMOTE CONTROL PANEL ..........................................7
SPECIFICATIONS / 参考仕様 .....................................7-8
INTERNAL VIEW ............................................................9
UPDATING FIRMWARE /
ファームウェアのアップデート ............................24-28
ダイアグ(自己診断機能) .....................................29-40
1 0 1 3 0 3

INTEGRATED AMPLIFIER

A-S2100
SERVICE MANUAL
IMPORTANT NOTICE
Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury,
destruction of expensive components, and failure of the product to perform as specifi ed. For these reasons, we advise
all Yamaha product owners that any service required should be performed by an authorized Yamaha Retailer or the
appointed service representative.
The presentation or sale of this manual to any individual or fi rm does not constitute authorization, certifi cation or
recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.
Static discharges can destroy expensive components. Discharge any static electricity your body may have
accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).
Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.
IC DATA ...................................................................44-49
BLOCK DIAGRAMS ................................................50-51
WIRING DIAGRAMS ...............................................52-53
PRINTED CIRCUIT BOARDS .................................54-73
PIN CONNECTION DIAGRAMS ................................... 74
SCHEMATIC DIAGRAMS .......................................75-83
REPLACEMENT PARTS LIST .............................. 85-112
REMOTE CONTROL ................................................... 113
P.O.Box 1, Hamamatsu, Japan
'14.07

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  • Page 1: Table Of Contents

    This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifi cally Yamaha Products, are already known and understood by the users, and have therefore not been restated.
  • Page 2: To Service Personnel

    A-S2100 ■ TO SERVICE PERSONNEL AC LEAKAGE WALL EQUIPMENT TESTER OR 1. Critical Components Information OUTLET UNDER TEST EQUIVALENT Components having special characteristics are marked must be replaced with parts having specifications equal to those originally installed. 2. Leakage Current Measurement (For 120V Models Only)
  • Page 3: Front Panels

    A-S2100 ■ FRONT PANELS U, K, A, B, G, L, V, S, J models T model...
  • Page 4: Rear Panels

    A-S2100 ■ REAR PANELS U model T model K model...
  • Page 5 A-S2100 A model B, G models L model...
  • Page 6 A-S2100 V model S model J model...
  • Page 7: Remote Control Panel

    A-S2100 ■ REMOTE CONTROL PANEL ■ SPECIFICATIONS / 参考仕様 ■ Audio Section / オーディオ部 RAS31 Rated Output Power / 定格出力 (20 Hz to 20 kHz, 0.07 % THD) U, T, K, A, B, G, V, S, J models 8 ohms ...............90 W + 90 W 4 ohms ..............150 W + 150 W...
  • Page 8 A-S2100 Total Harmonic Distortion / 全高調波歪率 (20 Hz to 20 kHz) Finish / 仕上げ PHONO (MC) to REC OUT (1.2 Vrms) ........0.02 % U, A, B, G, L, V, S, J models ......Black/Dark brown color (MM) to REC OUT (1.2 Vrms) ....... 0.005 % U, A, B, G, L, J models .........Black/Piano black color...
  • Page 9: Internal View

    A-S2100 ■ INTERNAL VIEW Rear view INPUT (2) P.C.B. INPUT (1) P.C.B. FRONT (17) P.C.B. FUNCTION (2) P.C.B. FRONT (16) P.C.B. FRONT (20) P.C.B. FUNCTION (3) P.C.B. FUNCTION (1) P.C.B. MAIN (3) P.C.B. Side view Top view MAIN (1) P.C.B.
  • Page 10: Service Precautions / サービス時の注意事項

    A-S2100 ■ SERVICE PRECAUTIONS / サービス時の注意事項 Safety measures 安全対策 • Some internal parts in this product contain high voltages ・ この製品の内部には高電圧部分があり危険です。修理 and are dangerous. の際は、絶縁性の手袋を使用するなどの安全対策を Be sure to take safety measures during servicing, such 行ってください。 as wearing insulating gloves. •...
  • Page 11: Disassembly Procedures / 分解手順

    A-S2100 ■ DISASSEMBLY PROCEDURES / 分解手順 (Remove parts in the order as numbered.) (番号順に部品を外してください。 ) Disconnect the power cable from the AC outlet. AC 電源コンセントから、電源コードを抜いてください。 1. Removal of Side Panel L and Side Panel R 1. サイドパネル L、サイドパネル R の外し方...
  • Page 12 A-S2100 3. Removal of Front Panel Unit 3. フロントパネルユニットの外し方 a. Remove 4 screws ( ⑤ ). (Fig. 2) a. ⑤ のネジ 4 本を外します。 (Fig. 2) b. Remove the top frame. (Fig. 2) b. トップフレームを外します。 (Fig. 2) c. Remove 8 screws ( ⑥ ). (Fig. 2) c.
  • Page 13 A-S2100 ● When installing the knob unit ● つまみを取り付ける場合 Prepare a hexagonal screwdriver (2 mm) for ※ つまみを取り付ける場合、6 角ドライバー(2 mm) installation of knob unit. を準備します。 When installing the VOLUME knob unit: VOLUME つまみを取り付ける場合: a. Turn the VOLUME (VR401) clockwise fully. (Fig. 3) a.
  • Page 14 A-S2100 When installing the INPUT knob unit: INPUT つまみを取り付ける場合: a. Turn the INPUT (SW403) so that the cut in it comes a. INPUT(SW403)のカット位置が下になるよう回 at the under. (Fig. 4) します。 (Fig. 4) b. Install the INPUT knob unit with its lock set screw b.
  • Page 15 A-S2100 When installing the BASS, TREBLE and BALANCE BASS、TREBLE、BALANCE つまみを取り付ける場合: knob units: Use the same installation procedure for BASS, ※ BASS、TREBLE、BALANCE つまみの取り付け方法 TREBLE and BALANCE knob units. はすべて同じです。 Described here is installation of BALANCE knob 例として BALANCE つまみの取り付け方法を記載 unit as an example.
  • Page 16 A-S2100 4. Removal of Side Frame Unit L, Side Frame 4. サイドフレームユニット L、サイドフレームユ Unit R ニット R の外し方 a. Remove 8 screws ( ⑦ ). (Fig. 6) a. ⑦ のネジ 8 本を外します。 (Fig. 6) b. Remove the side frame unit L. (Fig. 6) b.
  • Page 17 A-S2100 5. Removal of AMP L Unit and AMP R Unit 5. AMP L ユニット、AMP R ユニットの外し方 a. Remove 4 screws ( ⑨ ). (Fig. 7) a. ⑨ のネジ 4 本を外します。 (Fig. 7) b. Remove 1 screw ( ⑩ ) and disconnect 1 cable. (Fig. 7) b.
  • Page 18 A-S2100 When checking the P.C.B.: P.C.B. をチェックをする場合には: • Put the rubber sheet and cloth over this unit. Then ・ 本機の上にゴムシートと布を敷き、その上に P.C.B. を place the P.C.B. slantingly on the cloth and check it. 斜めに置いてチェックします。 (Fig. 8) (Fig. 8) ・ フロントパネルユニットとヒートシンクユニット L、...
  • Page 19 A-S2100 7. Removal of FUNCTION (1) P.C.B. 7. FUNCTION(1)P.C.B. の外し方 a. Remove 4 screws ( ⑭ ). (Fig. 9) a. ⑭ のネジ 4 本を外します。 (Fig. 9) b. Remove 4 screws ( ⑮ ). (Fig. 10) b. ⑮ のネジ 4 本を外します。 (Fig. 10)...
  • Page 20 A-S2100 10. Removal of INPUT (2) P.C.B. 10. INPUT(2)P.C.B. の外し方 Remove 4 screws ( ) and 3 screws ( ). (Fig. 11) のネジ 4 本、 のネジ 3 本を外します。 (Fig. 11) b. Remove CB31, CB33 and CB34. (Fig. 11) CB31、CB33、CB34 を外します。 (Fig. 11)...
  • Page 21 A-S2100 When checking the FUNCTION (1) P.C.B.: FUNCTION (1) P.C.B. をチェックする場合には: • Put the rubber sheet and cloth over this unit, and ・ 本 機 の 上 に ゴ ム シ ー ト と 布 を 敷 き、 そ の 上 に...
  • Page 22 A-S2100 When checking the P.C.B.: P.C.B. をチェックする場合には: a. Remove the top cover. (Fig. 1) a. トップカバーを外します。 (Fig. 1) b. Remove the FUNCTION (1) P.C.B. (Fig. 9, 10) b. FUNCTION(1)P.C.B. を外します。 (Fig. 9、10) c. Remove 3 screws ( ⑲ ). (Fig. 9) c.
  • Page 23 A-S2100 13. Removal of Meter Unit 13. メーターユニットの外し方 Remove 3 screws ( ) and 5 screws ( ). (Fig. 15) のネジ 3 本、 のネジ 5 本を外します。 (Fig. 15) b. Remove CB410 and CB411. (Fig. 15) CB410、CB411 を外します。 (Fig. 15) Remove the sub-front panel unit. (Fig. 15) サブフロントパネルユニットを外します。...
  • Page 24: ファームウェアのアップデート

    A-S2100 ■ UPDATING FIRMWARE / ファームウェアのアップデート When the following parts are replaced, the firmware must 下記の部品を交換した場合、ファームウェアを最新バー be updated to the latest version. ジョンにアップデートする必要があります。 FUNCTION P.C.B. FUNCTION P.C.B. Main microprocessor: IC502 on FUNCTION (1) P.C.B. メインマイコン:FUNCTION(1)P.C.B. の IC502 ● Confirmation of firmware version ●...
  • Page 25 A-S2100 ● Connection ● 接続 Disconnect the power cable of this unit from the ※ 本機の電源コードを AC コンセントから抜きます。 AC outlet. ・ RS-232C 変換アダプターのスイッチを下記のよう • Set the switches on RS-232C conversion adaptor に設定します。 (Fig. 1) as shown below. (Fig. 1) DSP ucom T...
  • Page 26 A-S2100 ● Operation procedures ● 操作方法 1. Set the “STANDBY/ON, OFF” (U, K, A, B, G, L, V, STANDBY/ON、OFF (電源)スイッチを ON S models) / “ ” (Power) (T model) switch to the にします。 “ON” position. 2. 本機の電源コードを AC コンセントに接続します。 2. Connect the power cable of this unit to the AC 本機に電源が入り、マイコンが書き込みモードに...
  • Page 27 A-S2100 5. Click [Refer...] and select the firmware name. 5. [Refer...]をクリックし、書き込むファームウェア (Fig. 4) を選択します。 (Fig. 4) The ID and MCU Type are loaded automatically ※ ID、および MCU Type は書き込みファイル選 when the file is selected. (Fig. 4) 択後、自動的に取り込まれます。 (Fig. 4) Click [OK]. (Fig. 4) [OK]をクリックします。...
  • Page 28 A-S2100 7. Click [E.P.R.], then the “Erase” screen appears. 7. [E.P.R]をクリックすると、 「Erase」が表示されま (Fig. 6) す。 (Fig. 6) 8. Click [OK] to start writing. (Fig. 6) 8. [OK]をクリックして書き込みを開始します。 (Fig. 6) Writing being executed. 書き込み中 Fig. 6 9. When writing of the firmware is completed, the 9.
  • Page 29: Self-Diagnostic Function / ダイアグ(自己診断機能

    A-S2100 ■ SELF-DIAGNOSTIC FUNCTION / ダイアグ(自己診断機能) This unit has self-diagnostic functions that are intended 本機には、検査、測定、不良個所の発見を目的にしたダ for inspection, measurement and location of faulty point. イアグ(自己診断機能)があります。 There are 11 menu items. ダイアグには 11 個のメニューがあります。 Listed in the table below are self-diagnostic function menu 下表はダイアグメニュー一覧です。...
  • Page 30 A-S2100 ● Starting Self-Diagnostic Function in ● プロテクション解除モードでの起動 the protection cancel mode If the protection function works and causes hindrance プロテクションが動作することにより、故障箇所の診断 to troubleshooting, cancel the protection function by the に支障をきたすような場合は、次の方法によりプロテク procedure below, and it will be possible to enter the self- ションを解除した状態でダイアグモードに入ることがで...
  • Page 31 A-S2100 ● Protection Information Display ● プロテクション情報の表示 While the self-diagnostic function is at work, the type of ダイアグの起動中は、常時、プロテクションの種類が protection is always indicated by the flashing pattern of STANDBY/ON(電源)インジケーターの点滅パターンに the STANDBY/ON indicator. より表示されます。 Front view STANDBY/ON indicator STANDBY/ON(電源)イ ンジケーター List of protection information プロテクション情報一覧...
  • Page 32 A-S2100 AMP PROTECTION AMP プロテクション PS amplifier protection 1, 2 detection アンプ電源プロテクション 1、2 の検出 Cause: Abnormal voltage of amplifier power source 原因: アンプ部電源の電圧が異常 Detection port: 5 pin of IC502 (PSVA1) 検出ポート: IC502 の 5 ピン(PSVA1) 3 pin of IC502 (PSVA2) IC502 の...
  • Page 33 A-S2100 ● Canceling Self-Diagnostic Function ● ダイアグの解除 Before canceling self-diagnostic function, execute ダイアグを解除する前に、 4. BACKUP INITIALIZE メ setting for “4. BACKUP INITIALIZE” menu. (Back-up ニュー(バックアップデータの初期化)の設定をし data initialized). ます。 To Keep the user memory, do not make setting. ※ ユーザーメモリーを保持したい場合は、設定をし ないでください。...
  • Page 34 A-S2100 ● Functions in Self-Diagnostic Function ● ダイアグ中の機能 mode In addition to the self-diagnostic function menu items, ダイアグメニューの他に、電源オン/オフのみが機能し only Power ON/OFF is available. ます。 ● Initial settings when Self-Diagnostic ● ダイアグ開始時の初期設定 Function started No initial setting. 初期設定はありません。...
  • Page 35 A-S2100 ● Details of Self-Diagnostic Function menu ● ダイアグメニュー詳細 1. MAIN VERSION 1. MAIN VERSION The firmware version (Program area) of the マイコン(IC502)のファームウェアバージョン(プ microprocessor (IC502) is indicated. ログラムエリア)を表示します。 The version of the firmware is indicated by lighting of INPUT セ レ ク タ ー イ ン ジ ケ ー タ ー の 点 灯 に よ り、...
  • Page 36 A-S2100 3. FIRMWARE UPDATE 3. FIRMWARE UPDATE Not for service. サービスでは使用しません。 4. BACKUP INITIALIZE 4. BACKUP INITIALIZE Set back to the factory setting (INPUT: CD). 工場出荷時の設定(INPUT:CD)に戻します。 After selecting this menu, push down the “AUDIO 本メニュー選択後、 AUDIO MUTE スイッチを 5 秒以...
  • Page 37 A-S2100 5. ALL MUTE CHECK 5. ALL MUTE CHECK This menu is used to force pins 43 (MT_N_MAIN), 44 マイコン(IC502)の 43 ピン(MT_N_MAIN) 、44 ピ (MT_N_REC) and 45 (MT_N_PRE) of the microprocessor ン (MT_N_REC) 、 45 ピン (MT_N_PRE) を強制的にミュ (IC502) to be muted.
  • Page 38 A-S2100 8. FRONT SWITCH CHECK 8. FRONT SWITCH CHECK This menu is used to detect switches and PHONE フロントパネルにあるスイッチと PHONES 端子の検 terminal on the front panel. 出をおこないます。 Move all switches and connect the head-phone to the 全てのスイッチを動かし、PHONES 端子へヘッドホ PHONES terminal.
  • Page 39 A-S2100 9. FRONT NOB CHECK 9. FRONT NOB CHECK This menu is used to detect knob units on the front フロントパネルにある、つまみの検出をおこないま panel. す。 Move all knob units from end to end. 全てのつまみを、端から端まで動かします。 The detected result is indicated by ON (OK) / OFF (NG) 検出結果は...
  • Page 40 A-S2100 10. REAR SWITCH CHECK 10. REAR SWITCH CHECK This menu is used to detect switches on the rear panel. リアパネルにあるスイッチの検出をおこないます。 Move all switches. 全てのスイッチを動かします。 The detected result is indicated by ON (OK) / OFF (NG) 検出結果は INPUT セレクターインジケーターの点灯 of the INPUT selector indicator.
  • Page 41: Amplifier Adjustment / アンプ調整

    A-S2100 ■ AMPLIFIER ADJUSTMENT / アンプ調整 ● Idling Current Adjustment ● アイドリング電流調整 Condition 条件 • No input signal 無入力信号 • Non loaded condition 無負荷 • Room temperature 22 to 27 ˚C 室内温度 22 ∼ 27℃ • No air flow 無風...
  • Page 42 A-S2100 ● Headphones DC Offset Confirmation ● ヘッドホン DC オフセット確認 After idling current adjustment, adjust VR203 (Lch)/ アイドリング調整後、W204 の DC 電圧が 0 mV(-2.0 VR103 (Rch) so that the DC voltage of the W204 ∼ +2.0 mV) になるように、 VR203 ( Lch) / VR103 ( Rch)...
  • Page 43 A-S2100 ● Meter Adjustment ● メーター調整 Check that the pointer is operating properly. 指針が正常に動作していることを確認します。 Condition 条件 • Input signal: 1 kHz sine wave 入力信号:1 kHz 正弦波 • Speaker output L/R: 8 ohms, 0.02 % THD スピーカー出力 L / R:8 ohms、0.02 % THD •...
  • Page 44: Ic Data

    A-S2100 ■ IC DATA IC502: R5F364AENFA (FUNCTION (1) P.C.B.) Microprocessor * No replacement part available. / サービス部品供給なし Port P0 Port P1 Port P1 Port P3 Port P4 Port P5 VCC2 ports Internal peripheral functions System clock generator UART or clock synchronous serial I/O...
  • Page 45 A-S2100 Function Name Port Name Detail of Function (P.C.B.) P9_6/ANEX1/SOUT4 RY_SPA Speaker relay A control P9_5/ANEX0/CLK4 RY_SPB Speaker relay B control P9_4/DA1/TB4IN/PWM1 PSVA2 Power amplifier power voltage protection P9_3/DA0/TB3IN/PWM0 DMRCON Meter Light Dimmer Level Control Makes the light intensity of the meter LED variable by using the DA function...
  • Page 46 A-S2100 Function Name Port Name Detail of Function (P.C.B.) 39 P5_7/nRDY/CLKOUT 40 P5_6/ALE BALG_DET BALANCE gain select SW detect Hi=ATT. -6dB (Low Gain), Low=BYPASS (High Gain) 41 P5_5/nHOLD N_EMP For writing Flash (LO) Boot mode: P5_5=L, CNVSS=H, P5_0=H PullDown as the Hiz state may occur during emulator operation...
  • Page 47 A-S2100 Function Name Port Name Detail of Function (P.C.B.) 77 P1_3/TXD6/SDA6/D11 EX_DO Expanded IC: Data Out for LC709004A 78 P1_2/RXD6/SCL6/D10 EX_DI Expanded IC: Data In for LC709004A 79 P1_1/CLK6/D9 EX_CL Expanded IC: Clock for LC709004A 80 P1_0/nCTS6/nRTS6/D8 EX_N_CS Expanded IC: Chip Select for LC709004A...
  • Page 48 A-S2100 • Microprocessor extended port IC402: LC709004AMJ-AH (FRONT (1) P.C.B.) I/O-expander for microprocessor Serial/parallel converter/shift register DOUT CLK# RES# I/O control/output register port 0 I/O buffer port 1 I/O buffer Function Name Port Name Detail of Function (P.C.B.) Data In...
  • Page 49 A-S2100 IC505: TC74HC4051AFEL (FUNCTION (1) P.C.B.) 8-channel analog multiplexer/demultiplexer C IN COM 3 INH 6 C IN GND 8 Function Name Port Name Detail of Function (P.C.B.) I_LRBAL L/R balance adjustment I_BAS BASS EQ EXAD COM output terminal I_TRE Treble EQ...
  • Page 50: Block Diagrams

    A-S2100 ■ BLOCK DIAGRAMS AUDIO Section Block Diagram • See page 75, 76 → • See page 82, 83 → INPUT FRONT SCHEMATIC DIAGRAM SCHEMATIC DIAGRAM Input selector Buffer amplifier VOLUME TONE CONTROL FLOATING BALANCE Buffer amplifier/ DISCRETE AMPLIFIER RYB1_PLTY...
  • Page 51 A-S2100 Power Supply Sections Block Diagram Power transformer +60V (about) Power Amplifier PRE C317 D305 +HPB HP Amplifier -HPB HP Amplifier C318 Power Amplifier PRE -60V (about) Screw HP_GND PBGND Pin jack Rear panel AGND +CCPS +30V (about) LINE1+20V Input buffer...
  • Page 52: Wiring Diagrams

    A-S2100 ■ WIRING DIAGRAMS • OVERALL ASSEMBLY Side view Top side view [L channel] [R channel] to FUNCTION (1) to FRONT (16) FRONT (17) FRONT (16) CB506 W424 W11A/B AC IN W425 W424 PN714 CB713 (W903, W906) W901 CB501 W416A/B...
  • Page 53 A-S2100 • AMP L UNIT / AMP R UNIT AMP L UNIT AMP R UNIT MAIN (2) MAIN (1) Apply SOLDER Apply SOLDER 9 spot 9 spot Apply Silicone grease Apply Silicone grease 1 spot 1 spot Max 0.25 mm Max 0.25 mm...
  • Page 54: Printed Circuit Boards

    A-S2100 ■ PRINTED CIRCUIT BOARDS INPUT (1) (Side A) LINE 2 INPUT PRE OUT/ LINE 1 TUNER REC/PB MAIN IN BAL_L+ BAL_L- AGND BAL_R+ BAL_R- AGND • Semiconductor Location AGND AGND Ref no. Location Ref no. Location AGND D905 Q913...
  • Page 55 A-S2100 INPUT (1) (Side B) • Semiconductor Location Ref no. Location D906 D907 D911 D913 D921 D922 D923 D924 Q905 Q906 Q907 Q908 Q909...
  • Page 56 A-S2100 INPUT (2) (Side A) FUNCTION (2) FUNCTION (1) INPUT (1) (W1001) (CB712) (W902) MAIN (3) (W316) CB32 CB34 CB33 AGND AGND AGND AGND AGND AGND AGND BAL_R- BAL_R+ AGND BAL_L- BAL_L+ INPUT (1) (W901) JK31 JK32 • Semiconductor Location Ref no.
  • Page 57 A-S2100 INPUT (2) (Side B) • Semiconductor Location Ref no. Location...
  • Page 58 A-S2100 FUNCTION (1) (Side A) MAIN (2) (ST201) INPUT (1) (W904) MAIN (1) INPUT (2) INPUT (1) FUNCTION (2) (W905) (ST101) (W31) (W1003) MAIN (2) MAIN (2) (W202) (CB204) MAIN (1) (CB104) FRONT (17) (W425) FUNCTION (3) (W1) CB712 CB503...
  • Page 59 A-S2100 FUNCTION (1) (Side B) • Semiconductor Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location D501 D513 D747 Q524 Q716 Q764 Q777 D503 D514 Q507 Q528...
  • Page 60 A-S2100 FUNCTION (2) FUNCTION (3) (Side A) (Side A) INPUT PHONO POWER TRANSFORMER AC IN U, L, V, S, J models T, K, A, B, G models T, K, A, B, G models W11B W11A Power transformer W1002 W1003 W1001...
  • Page 61 A-S2100 FUNCTION (2) FUNCTION (3) (Side B) (Side B) T, K, A, B, G models • Semiconductor Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location D767 Q1017 D768 Q1018 D1001 Q1001 Q1019 D1002 Q1002 Q1020...
  • Page 62 A-S2100 MAIN (1) (Side A) MAIN (3) (W313) MAIN (2) FUNCTION (1) (CB206) (W701) FUNCTION (1) (W703) T, K, A, B, G models For service CB104 CB103 IC102 W104 PRDR PRIR HPPRDR THMR FUNCTION (1) (CB502) CB101 CB102 FRONT (16)
  • Page 63 A-S2100 MAIN (1) (Side B) • Semiconductor Location Ref no. Location Ref no. Location D101 Q114 D102 Q115 D106 Q116 D107 Q117 D111 Q118 D115 Q121 Q122 D121 D122 Q132 D125...
  • Page 64 A-S2100 MAIN (2) (Side A) MAIN (3) (W314) FUNCTION (1) MAIN (1) (W702) FUNCTION (1) (W104) (W704) T, K, A, B, G models For service CB204 CB206 CB203 IC202 FRONT (12) PRDL PRIL (CB403) HPPRDL THML HPGND HPGND CB201 FUNCTION (1)
  • Page 65 A-S2100 MAIN (2) (Side B) • Semiconductor Location Ref no. Location Ref no. Location D201 Q214 D202 Q215 D206 Q216 D207 Q217 D211 Q218 D215 Q221 Q222 D221 D222 Q232 D225...
  • Page 66 A-S2100 Safety measures 安全対策 • Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures during servicing, such ・ この製品の内部には高電圧部分があり危険です。修理の際は、絶縁性の手袋を使用するなどの安全対策を行ってください。 as wearing insulating gloves. ・ 下記のコンデンサには電源を OFF にした後も電荷が残り、高電圧が維持されており危険です。修理作業前に放電用抵抗 • Note that the capacitors indicated below are dangerous even after the power is turned off because an electric charge remains and a (5 k Ω...
  • Page 67 A-S2100 MAIN (3) (Side B) • Semiconductor Location Ref no. Location D309 D310 D328 D329 Q301 Q302 Q303 Q305 Q306...
  • Page 68 A-S2100 • Semiconductor Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location Ref no. Location D403 D413 D426 D435 IC406 Q411 Q420 Q430 D404 D414 D427 D436...
  • Page 69 A-S2100 • Semiconductor Location Ref no. Location Ref no. Location Ref no. Location D425 D439 Q431 D429 Q401 Q432 FRONT (1) (Side B) Q402 Q433 D433 D437 Q422 Q434 D438 Q426 FRONT (2) FRONT (3) FRONT (4) FRONT (5) FRONT (6)
  • Page 70 A-S2100 FRONT (7) FRONT (8) FRONT (9) FRONT (10) (Side A) (Side A) (Side A) (Side A) BALANCE TREBLE BASS METER SPEAKERS PEAK BI-WIRING INPUT selector W407A I_ISEL W408 W409 FRONT (1) FRONT (1) (W405B) (W407B) FRONT (1) FRONT (1)
  • Page 71 A-S2100 FRONT (7) FRONT (8) FRONT (9) FRONT (10) (Side B) (Side B) (Side B) (Side B) FRONT (11) FRONT (12) FRONT (13) FRONT (14) (Side B) (Side B) (Side B) (Side B) • Semiconductor Location Ref no. Location D406...
  • Page 72 A-S2100 FRONT (15) (Side A) W419 Meter indicator FRONT (1) (CB409) FRONT (16) FRONT (17) FRONT (18) FRONT (19) FRONT (20) (Side A) (Side A) (Side A) (Side A) (Side A) RY_SPA -12D RY_SPB RY_SPB -12D RY_SPA FUNCTION (1) FUNCTION (1)
  • Page 73 A-S2100 FRONT (15) (Side B) FRONT (16) FRONT (17) FRONT (18) FRONT (19) FRONT (20) (Side B) (Side B) (Side B) (Side B) (Side B) – – SPEAKERS R CH SPEAKERS L CH TERMINAL TERMINAL – • Semiconductor Location Ref no. Location D418 –...
  • Page 74: Pin Connection Diagrams

    A-S2100 ■ PIN CONNECTION DIAGRAMS • ICs • Transistors BA6956AN BA8522RFVM-TR LC709004AMJ-AH LM61CIZ NJM2068MD-TE2 NJM7812FA 2SA1037K 2SA1163-GR 2SA1312-GR,BL 2SAR513P 2SC2412K 2SC2713-GR 2SC3324-GR,BL 2SCR513P 3: IN 1: OUT 2: COM 2SC4081UBTLR 2SD2704 K 2SK209 2SK209-BL (TE85L,F) DTC143XKA KRA302-RTK/P KRA304-RTK/P 2SK880-BL (TE85L)
  • Page 75: Schematic Diagrams

    A-S2100 SCHEMATIC DIAGRAMS INPUT 1/2 R E S I S T O R S W S e l G A I N R E M A R K S P A R T S N A M E I N P U T ( 1 )
  • Page 76 A-S2100 INPUT 2/2 Note: Precaution for handling measuring instrument Page 75 Page 81 Since the speaker output of this unit is BALANCED OUT connected, the ground side of the measuring instrument to be connected to the speaker terminal to INPUT (1)_W901 to MAIN (3)_W316 MUST be kept in floating condition.
  • Page 77 N O T I C E ( m o d e l ) A-S2100 J A P A N U . S . A IC502: R5F364AENFA FUNCTION 1/4 R E S I S T O R C A P A C I T O R...
  • Page 78 A-S2100 FUNCTION 2/4 Page 81 Page 81 Page 76 Page 81 Page 81 to MAIN (2)_ST201 to MAIN (2)_CB204 to INPUT (2)_W31 to MAIN (1)_CB104 to MAIN (1)_ST101 M A I N ( 2 ) M A I N ( 2 )
  • Page 79 A-S2100 FUNCTION 3/4 F U N C ( 2 ) M C H E A D A M P M M E Q A M P FUNCTION (2) W 1 0 0 1 1 9 . 2 m A 3 2 m A +18.4...
  • Page 80 A-S2100 FUNCTION 4/4 D e s t i n a t i o n P a r t L i s t + - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - +...
  • Page 81 A-S2100 Safety measures 安全対策 • Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures during servicing, such as wearing insulating gloves. ・ この製品の内部には高電圧部分があり危険です。 修理の際は、 絶縁性の手袋を使用するなどの安全対策を行ってください。 MAIN • Note that the capacitors indicated below are dangerous even after the power is turned off because an electric charge remains and a high voltage continues to exist there.
  • Page 82 A-S2100 FRONT 1/2 Page 77 Page 77 to FUNCTION (1)_CB508 to FUNCTION (1)_CB509 F U N C ( 1 ) F U N C ( 1 ) C B 5 0 8 C B 5 0 9 FRONT (13) FRONT (8)
  • Page 83 A-S2100 FRONT 2/2 FRONT (16) FRONT (17) F R O N T ( 1 6 ) F R O N T ( 1 7 ) S P T M L _ R P N 4 1 0 S P T M L _ L 3 P 8 0 M M B &...
  • Page 84: Replacement Parts List

    A-S2100 ■ REPLACEMENT PARTS LIST • ELECTRICAL COMPONENT PARTS WARNING ● Components having special characteristics are marked and must be replaced with parts having specifications equal to those originally installed. ● 印のある部分は、安全確保部品を示しています。部品の交換が必要な場合、パーツリストに記載されている部品を使用し てください。 ABBREVIATIONS IN THIS LIST ARE AS FOLLOWS: C.A.EL.CHP...
  • Page 85 A-S2100 INPUT Ref No. Part No. Description Remarks Markets 部 品 名 ZK424400 P.C.B. INPUT PCB INPUT ZK424500 P.C.B. INPUT PCB INPUT ZK424600 P.C.B. INPUT PCB INPUT ZK424700 P.C.B. INPUT PCB INPUT ZK424800 P.C.B. INPUT PCB INPUT ZK424900 P.C.B. INPUT PCB INPUT ZK425000 P.C.B. INPUT PCB INPUT CB31 VB390800 CN.BS.PIN コネクター...
  • Page 86 A-S2100 INPUT Ref No. Part No. Description Remarks Markets 部 品 名 ZC242500 TR KTC2026 トランジスタ ZA348800 TR KTA1046-Y-U/PFY トランジスタ ZC242500 TR KTC2026 トランジスタ ZA348800 TR KTA1046-Y-U/PFY トランジスタ ZC242500 TR KTC2026 トランジスタ VV556400 TR 2SC2412K Q,R,S トランジスタ VV556500 TR 2SA1037K Q,R,S トランジスタ...
  • Page 87 A-S2100 INPUT and FUNCTION Ref No. Part No. Description Remarks Markets 部 品 名 R930-933 Vi194200 R.MTL.CHP 510Ω 1/10W チップ金属被膜抵抗 R936 Vi194200 R.MTL.CHP 510Ω 1/10W チップ金属被膜抵抗 R941-943 Vi194200 R.MTL.CHP 510Ω 1/10W チップ金属被膜抵抗 R965-966 Vi195900 R.MTL.CHP 2.7KΩ 1/10W チップ金属被膜抵抗 R967-970 Vi195700 R.MTL.CHP 2.2KΩ...
  • Page 88 A-S2100 FUNCTION Ref No. Part No. Description Remarks Markets 部 品 名 WN165300 C.PP 0.01uF 100V PPコン UU266220 C.EL 2.2uF ケミコン UU239330 C.EL 3300uF ケミコン UU266220 C.EL 2.2uF ケミコン WN165300 C.PP 0.01uF 100V PPコン UU266100 C.EL ケミコン WZ364300 C.PP 0.1uF 100V PPコン...
  • Page 89 A-S2100 FUNCTION Ref No. Part No. Description Remarks Markets 部 品 名 * C724 UU237220 C.EL 22uF ケミコン C725 UU237100 C.EL 10uF ケミコン C727-728 UU267100 C.EL 10uF ケミコン C729-731 US061100 C.CE.CHP 10pF 50V B チップセラコン C734 UU266100 C.EL ケミコン C735 WE102900 C.PP 0.01uF...
  • Page 90 A-S2100 FUNCTION Ref No. Part No. Description Remarks Markets 部 品 名 C817 UU267100 C.EL 10uF ケミコン C818-819 WZ363500 C.PP 0.047uF 100V PPコン C820-822 US061100 C.CE.CHP 10pF 50V B チップセラコン C823 WE101700 C.PP 1000pF 100V J PPコン C824 UU257470 C.EL 47uF ケミコン...
  • Page 91 A-S2100 FUNCTION Ref No. Part No. Description Remarks Markets 部 品 名 C1032 UU267100 C.EL 10uF ケミコン C1034 UU258100 C.EL 100uF ケミコン C1036 UU258100 C.EL 100uF ケミコン C1038 UU258100 C.EL 100uF ケミコン C1040 UU258100 C.EL 100uF ケミコン C1041 WZ364300 C.PP 0.1uF 100V PPコン...
  • Page 92 A-S2100 FUNCTION Ref No. Part No. Description Remarks Markets 部 品 名 XC721A00 IC NJM7912FA -12V 電源IC IC501 WJ688100 PHOT.CPL EL816(B) フォトカプラ IC502 YC731A00 IC.CPU R5F364AENFA unwritten CPU IC IC503 WJ688100 PHOT.CPL EL816(B) フォトカプラ IC504 YC289A00 IC RP130Q501D-TR 電源IC IC505 XY549A00 IC TC74HC4051AFEL ロジックIC...
  • Page 93 A-S2100 FUNCTION Ref No. Part No. Description Remarks Markets 部 品 名 Q736 V7421700 TR.CHP 2SC3324-GR,BL チップトランジスタ Q737 WZ177900 TR KTC4370A-Y トランジスタ Q738 WW510000 TR KTA1659A-Y-U/PF トランジスタ Q739 WZ177900 TR KTC4370A-Y トランジスタ Q740 WW510000 TR KTA1659A-Y-U/PF トランジスタ Q741 WZ177900 TR KTC4370A-Y トランジスタ...
  • Page 94 A-S2100 FUNCTION Ref No. Part No. Description Remarks Markets 部 品 名 R717 Vi198600 R.MTL.CHP 33KΩ 1/10W チップ金属被膜抵抗 R720 Vi197800 R.MTL.CHP 15KΩ 1/10W チップ金属被膜抵抗 R723 Vi196100 R.MTL.CHP 3.3KΩ 1/10W D チップ金属被膜抵抗 R727 Vi200000 R.MTL.CHP 100KΩ 1/10W チップ金属被膜抵抗 R729 Vi195300 R.MTL.CHP 1.5KΩ 1/10W チップ金被抵抗...
  • Page 95 A-S2100 FUNCTION Ref No. Part No. Description Remarks Markets 部 品 名 R879 Vi198600 R.MTL.CHP 33KΩ 1/10W チップ金属被膜抵抗 R881 Vi194100 R.MTL.CHP 470Ω 1/10W チップ金属被膜抵抗 * R882 Vi197100 R.MTL.CHP 7.5KΩ 1/10W チップ金属被膜抵抗 R894 Vi193200 R.MTL.CHP 200Ω 1/10W チップ金属被膜抵抗 R900 Vi193500 R.MTL.CHP 270Ω 1/10W チップ金属被膜抵抗...
  • Page 96 A-S2100 FUNCTION Ref No. Part No. Description Remarks Markets 部 品 名 R1053 Vi191900 R.MTL.CHP 56Ω 1/10W チップ金属被膜抵抗 R1054-1055 Vi191700 R.MTL.CHP 47Ω 1/10W チップ金属被膜抵抗 R1056 Vi191900 R.MTL.CHP 56Ω 1/10W チップ金属被膜抵抗 R1057-1058 Vi192900 R.MTL.CHP 150Ω 1/10W チップ金属被膜抵抗 * R1059-1060 Vi198000 R.MTL.CHP 18KΩ 1/10W チップ金属被膜抵抗...
  • Page 97 A-S2100 MAIN Ref No. Part No. Description Remarks Markets 部 品 名 ZK422700 P.C.B. MAIN PCB MAIN ZK422800 P.C.B. MAIN PCB MAIN ZK422900 P.C.B. MAIN PCB MAIN ZK423000 P.C.B. MAIN PCB MAIN ZK423100 P.C.B. MAIN PCB MAIN ZK423200 P.C.B. MAIN PCB MAIN CB101 VL844800 CN.BS.PIN コネクター CB102 LB932040 CN.BS.PIN コネクター...
  • Page 98 A-S2100 MAIN Ref No. Part No. Description Remarks Markets 部 品 名 C208-209 UU298470 C.EL 470uF 100V ケミコン C210 WE100800 C.PP 180pF 630V K PPコン C211 UU298470 C.EL 470uF 100V ケミコン C213 UU266470 C.EL 4.7uF ケミコン C214 WZ363500 C.PP 0.047uF 100V PPコン...
  • Page 99 A-S2100 MAIN Ref No. Part No. Description Remarks Markets 部 品 名 D125 ZE906900 DIODE S-202T ダイオード D130 ZE906900 DIODE S-202T ダイオード D201-202 ZA310700 D.SCHOTTKY RB520SM-40 ショットキーダイオ-ド D203-204 WW783900 DIODE 1SS355VM ダイオード D206-207 ZA984400 DIODE BAV103 ダイオード D209 WW783900 DIODE 1SS355VM ダイオード...
  • Page 100 A-S2100 MAIN Ref No. Part No. Description Remarks Markets 部 品 名 Q138 WZ177900 TR KTC4370A-Y トランジスタ Q139 WW510000 TR KTA1659A-Y-U/PF トランジスタ Q148-149 WK452300 TR 2SC2713 GR トランジスタ Q201-202 ZC733700 FET 2SK880-BL(TE85L) FET # Q203 ZE955600 TR KTC3964-U/PH トランジスタ * Q204 WH409600 TR KTA1024Y-AT/P トランジスタ...
  • Page 101 A-S2100 MAIN Ref No. Part No. Description Remarks Markets 部 品 名 R118 V8070200 R.MTL.FLM 4.7Ω 金属被膜抵抗 R119 V8070900 R.MTL.FLM 100Ω 金属被膜抵抗 R124 V8070000 R.MTL.FLM 1Ω 金属被膜抵抗 R125-126 WA621900 R.MTL.FLM 820Ω 金属被膜抵抗 R127 Vi192500 R.MTL.CHP 100Ω 1/10W チップ金属被膜抵抗 R129 ZG213300 R.WW 0.1Ω...
  • Page 102 A-S2100 MAIN Ref No. Part No. Description Remarks Markets 部 品 名 R236 V8070200 R.MTL.FLM 4.7Ω 金属被膜抵抗 R246 ZG213300 R.WW 0.1Ω セメント抵抗 R253 V8070000 R.MTL.FLM 1Ω 金属被膜抵抗 R255 WW966900 R.MTL.OXD 10Ω 1/4W 酸化金属被膜抵抗 R256 V8070900 R.MTL.FLM 100Ω 金属被膜抵抗 R257 V8070200 R.MTL.FLM 4.7Ω...
  • Page 103 A-S2100 FRONT Ref No. Part No. Description Remarks Markets 部 品 名 ZK432400 P.C.B. FRONT BL, BP PCB FRONT ZK423500 P.C.B. FRONT SI, SP PCB FRONT ZK432500 P.C.B. FRONT BL, BP PCB FRONT ZK423600 P.C.B. FRONT SI, SP PCB FRONT ZK432600 P.C.B. FRONT BL, BP PCB FRONT...
  • Page 104 A-S2100 FRONT Ref No. Part No. Description Remarks Markets 部 品 名 C496 UU237470 C.EL 47uF ケミコン C497 US062100 C.CE.CHP 100pF 50V B チップセラコン C498 US662100 C.CE.CHP 100pF チップセラコン C499-500 US064100 C.CE.CHP 0.01uF 50V B チップセラコン C501-502 UR237100 C.EL 10uF ケミコン D403-405...
  • Page 105 A-S2100 FRONT Ref No. Part No. Description Remarks Markets 部 品 名 * R617 WW975900 R.MTL.OXD 56KΩ 1/4W 酸化金属被膜抵抗 * R618 WW976300 R.MTL.OXD 82KΩ 1/4W 酸化金属被膜抵抗 RY401 WK364200 RELAY DC EC2-24NU-F リレー RY402-405 VK438300 RELAY DH24D2-OT/M2 リレー ST401 WA246200 SCR.TERM スクリューターミナル SW401 WM058500 SW.LEVER...
  • Page 106 A-S2100 Carbon Resistors Value 1/4W Type Part No. 1/6W Type Part No. Value 1/4W Type Part No. 1/6W Type Part No. 1.0 Ω HJ35 3100 HF85 3100 11 kΩ HF45 7110 HF45 7110 ✻ 1.8 Ω 3180 12 kΩ 7120...
  • Page 107 A-S2100 • OVERALL ASSEMBLY (20) (18) 1 (3) Rear unit Power unit J model (19) Front panel unit 1 (1) AMP L unit AMP R unit 113-1 111-1 L model 300-1...
  • Page 108 A-S2100 Ref No. Part No. Description Remarks Markets 部 品 名 Ref No. Part No. Description Remarks Markets 部 品 名 ZK421900 P.C.B. ASSEMBLY FUNCTION PCB FUNCTION 111-1 ZG813700 LOCK SET SCREW 4x5 6SOCK MFZN2B3 HEXGONAL WRENCH SIZE: 2 六角止めネジ ZK422000 P.C.B. ASSEMBLY FUNCTION PCB FUNCTION...
  • Page 109 A-S2100 • FRONT PANEL UNIT Ref No. Part No. Description Remarks Markets 部 品 名 * 6-1 ZK432400 P.C.B. ASSEMBLY FRONT BL, BP PCB FRONT * 6-1 ZK423500 P.C.B. ASSEMBLY FRONT SI, SP PCB FRONT 6-1 (13) * 6-1 ZK432500 P.C.B. ASSEMBLY FRONT BL, BP PCB FRONT...
  • Page 110 A-S2100 • AMP L UNIT, AMP R UNIT AMP L UNIT, AMP R UNIT Ref No. Part No. Description Remarks Markets 部 品 名 * 3-1 ZK422700 P.C.B. ASSEMBLY MAIN PCB MAIN * 3-1 ZK422800 P.C.B. ASSEMBLY MAIN PCB MAIN 3-22 * 3-1 ZK422900 P.C.B. ASSEMBLY MAIN PCB MAIN...
  • Page 111 A-S2100 • REAR UNIT Ref No. Part No. Description Remarks Markets 部 品 名 ZK421900 P.C.B. ASSEMBLY FUNCTION PCB FUNCTION ZK422000 P.C.B. ASSEMBLY FUNCTION PCB FUNCTION ZK422100 P.C.B. ASSEMBLY FUNCTION PCB FUNCTION 7-35 7-11 ZK422200 P.C.B. ASSEMBLY FUNCTION PCB FUNCTION 7-33 ZK422300 P.C.B. ASSEMBLY FUNCTION PCB FUNCTION...
  • Page 112: Remote Control

    A-S2100 ■ REMOTE CONTROL SCHEMATIC DIAGRAM PANEL KEY NO. LAYOUT KEY CODE Mode-1 Mode-2 no use Key Name Customer Customer Data code Data code code code 10 ohms 2AD4 2AD4 5.1K ohms OPEN/CLOSE SOURCE PRESET 22K ohms 22K ohms M34286G2GP...
  • Page 113 A-S2100 MEMO MEMO...
  • Page 114 A-S2100 MEMO...
  • Page 115 A-S2100...