INTEGRATED AMPLIFIER A-S700 SERVICE MANUAL IMPORTANT NOTICE 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 specifically YAMAHA Products, are already known and understood by the users, and have therefore not been restated.
A-S700 ■ 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. WALL OUTLET 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.
A-S700 ■ IMPEDANCE SELECTOR WARNING: Do not change the setting of the IMPEDANCE SELECTOR switch when the unit power is switched on, as doing so may damage the unit.
A-S700 ■ REAR PANELS A-S700 (U model) A-S700 A-S700 (R model) A-S700 (T model) 4
A-S700 A-S700 (K model) A-S700 (A model) A-S700 A-S700 (B model) 5
A-S700 A-S700 (G model) A-S700 A-S700 (L model) A-S700 (J model) 6
A-S700 ■ REMOTE CONTROL PANEL RAS7 ■ SPECIFICATIONS / 参考仕様 ■ Audio Section / オーディオ部 Minimum RMS Output Power (Power Amp. Section) / 定格出力(パワーアンプ部)(20 Hz to 20 kHz) 8 ohms, 0.019 % THD ................................... 90 W + 90 W 6 ohms, 0.03 % THD ................................. 105 W + 105 W Dynamic Power / ダイナミックパワー (IHF) 8/6/4/2 ohms ...........................................135/160/200/240 W Maximum Output Power / 実用最大出力 (1 kHz) R, L, J models (10 % THD, 8/6 ohms, JEITA) ...
A-S700 ■ General / 総合 Power Supply / 電源電圧 U model ........................................................... AC 120 V, 60 Hz R model ........................... AC 110/120/220/230-240 V, 50/60 Hz T model ............................................................ AC 220 V, 50 Hz K model ............................................................ AC 220 V, 60 Hz A model ............................................................ AC 240 V, 50 Hz B, G models ...............................................
A-S700 ■ INTERNAL VIEW Top view 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 12 10 11 12 13 14 15 16 17 18 Front view 19 20 17 18 16 15 14 13 21 22 19 20 21 Power Transformer MAIN (2) P.C.B. MAIN (3) P.C.B. MAIN (8) P.C.B. MAIN (5) P.C.B. (R, L models) MAIN (4) P.C.B. MAIN (7) P.C.B. MAIN (1) P.C.B. MAIN (6) P.C.B. FUNCTION (1) P.C.B. OPERATION (10) P.C.B. FUNCTION (2) P.C.B. OPERATION (3) P.C.B. OPERATION (4) P.C.B. OPERATION (2) P.C.B. OPERATION (11) P.C.B. OPERATION (5) P.C.B.
A-S700 ■ 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 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。 • Note that positions indicated below are dangerous even after the power is turned off because an electric charge remains and a high voltage continues to exist there.
A-S700 Top cover トップカバー Frame top フレームTOP A-S700 Knob SP13 ノブSP13 Front panel フロントパネル Knob TC ノブTC Knob SEL unit ノブSELユニット Lock set screw 止めネジ 2mm Knob VOL unit ノブVOLユニット An Allen hex socket screwdriver 6角穴用ドライバー Fig.
A-S700 • When installing the knob VOL unit: a. Turn the VOLUME (VR805) counterclockwise fully. (Fig. 2) b. Match the slit in the knob VOL unit with the “VOLUME MIN” position and install it in that state. (Fig. 2) * At this time, do not tighten the lock set screw. c. Keep about 0.5 mm to 0.75 mm clearance from the front panel to knob VOL unit. (Fig. 2) d. Tighten the lock set screw. (Fig. 2) e. After installation, perform following checks.
A-S700 0.5–0.75mm Front panel フロントパネル Lock set screw 止めネジ Cut カット位置 SW803 VR805 Lock set screw 止めネジ VOLUME MIN. VOLUME MAX. A-S700 Slit スリット Knob SEL unit ノブSELユニット Knob VOL unit ノブVOLユニット Fig.
A-S700 3. Removal of Sub-chassis Unit 3. サブシャーシユニットの外し方 a. Remove 2 screws ( ). (Fig. 3) b. Remove CB283,CB606,CB609,CB611and CB802. (Fig. 3) c. Remove the sub-chassis unit. (Fig. 3) a. のネジ 2 本を外します。(Fig. 3) b. CB283、CB606、CB609、CB611、CB802 を外します。 (Fig. 3) c. サブシャーシユニットを取り外します。(Fig. 3) CB283 MAIN (4) P.C.B. CB609 CB606 A-S700 CB611 Sub-chassis unit サブシャーシユニット CB802 FUNCTION (2) P.C.B. OPERATION (1) P.C.B. Fig.
A-S700 When checking the P.C.B.s: P.C.B. をチェックする場合には: • ・ 本機の上にゴムシートと布を敷き、その上に P.C.B. を 裏返しに置いてチェックします。(Fig. 4) ・ 外したケーブル(コネクター)をすべて接続します。 ・ サブシャーシユニットのアースをアース線等で シャーシに接続してください。(Fig. 4) • • Put the rubber sheet and cloth over this unit. Then place the P.C.B.s upside down on the cloth and check it. (Fig. 4) Reconnect all cables (connectors) that have been disconnected. Connect the ground point of the sub–chassis unit to the chassis with a ground lead or the like. (Fig.
A-S700 When checking the P.C.B.s: P.C.B. をチェックする場合には: • ・ ゴムシートと布を敷き、 本機を上下反転します。 (Fig. 5) ・ のネジ 6 本を外しシャーシカバーを取り外します。 (Fig. 5) • Spread the rubber sheet and the cloth. Then place this unit on the cloth upside down. (Fig. 5) Remove 6 screws ( ) and then remove the chassis cover. (Fig. 5) Chassis cover シャーシカバー A-S700 MAIN (1) P.C.B. Rubber sheet and cloth ゴムシートと布 Fig.
A-S700 ■ AMP ADJUSTMENT / アンプ部調整 ● CONFIRMATION OF IDLING CURRENT ● アイドリング電流の確認 1. Right after power is turned on, confirm that the voltage across the terminals of R111–R135 (L ch) and R112–R136 (R ch) are between 0.1 mV to 10.0 mV. 2. If measured voltage exceeds 10.0 mV, open (cut off) R175 (L ch), R176 (R ch) and reconfirm the voltage. 1. 電源投入直後、R111 ∼ 135(L ch) 、R112 ∼ 136(R ch)の端子間電圧を測定し、0.1 mV から 10.0 mV の間であることを確認してください。 2. 電圧が 10.
A-S700 SCHEMATIC DIAGRAM MAIN (1) R135 L ch R175 0.1 mV – 10 mV Cut off A-S700 R111 R112 R176 R ch Cut off R136 18 0.
A-S700 ■ SELF-DIAGNOSTIC FUNCTION / ダイアグ(自己診断機能) ● Indication of Protection Information ● プロテクション情報の表示 When the power to this unit is turned on and the power indicator is flashing, the normal operation is not available because the protection function is at work. In that case, the protection information can be indicated by following procedures. However, the power supply relay (RY251 of MAIN P.C.B.) does not turn on.
A-S700 • List of protection information ・ プロテクション情報一覧 The protection information is indicated by the flashing pattern of the POWER indicator. (Fig. 2) Types of protection function / プロテクションの種類 POWER インジケーターの点滅パターンにより、 プロテクション情報を表示します。(Fig.
A-S700 c. I protection L/Rch Cause: Excess current flow into amplifier. Speaker terminal shorted. (*) c. 過電流プロテクション L/Rch 原因: アンプ部に過電流が流れた。 スピーカー端子をショートし た。(※) Normal value: LOW (0V) 正常値: LOW(0V) Detection port: PRI (80 pin of microprocessor IC602 of FUNCTION P.C.B.) 検出ポート: PRI(FUNCTION P.C.B. のマイコ ン IC602 の 80 ピン) Detected at: 検出先: * PRI (Amplifier output L/Rch of MAIN P.C.B.
A-S700 ● Starting in the Protection Cancel mode ● プロテクション解除モードでの起動 If the protection function works and causes hindrance to trouble shoot, cancel the protection function as described below, and it will be possible to turn on the power. プロテクションが動作することにより、故障箇所の診断 に支障をきたすような場合は、次の方法によりプロテク ションを解除した状態で起動することができます。 • Operation procedures ・ 操作方法 * Perform this operation procedure within 30 seconds after turning off the power. * この操作方法は、電源を切った後 30 秒以内に行っ てください。 1.
A-S700 Note) 注意! • ・ 異常状態のまま本機の電源を入れると、危険な状態 になり、さらに回路が損傷を受ける原因になります。 それを避けるために、プロテクションが予め設定さ れた回数だけ働いた以降、 POWER キーを押しても 電源が入らなくなります。 Applying the power to this unit without correcting the abnormality can be dangerous and cause additional circuit damage. To avoid this, if protection function has been activated the number of times which is set beforehand, the power will not turn on even when the “POWER” key is pressed. a.
A-S700 ● Indication of Firmware Version ● ファームウェアバージョンの表示 The firmware version of the microprocessor is indicated in the binary code (BCD) using INPUT indicates. マイコンのファームウェアバージョンを INPUT イン ジケーターを使って 2 進数(BCD)で表示します。 • Operation procedures ・ 操作方法 * Perform this operation procedure within 30 seconds after turning off the power. * この操作方法は、電源を切った後 30 秒以内に行っ てください。 1. POWER スイッチ、 CD DIRECT AMP スイッ チ、 PURE DIRECT スイッチを押し、それぞ れ OFF にします。(Fig. 4) 2. CD DIRECT AMP スイッチの ON/OFF を3回 繰り返します。(Fig. 4) 3.
A-S700 ● Factory Reset ● ファクトリーリセット Return below settings to those when shipped from the factory. 下記の設定を工場出荷時に戻します。 ( )内は工場出荷時 In the parentheses ( ) are settings when shipped from the factory. a. Power (OFF) b. INPUT (CD) c. Protection history (None) d. Number of times when protection is detected (0) e. Indication of speaker short detected (None) a. b. c. d. e. • Operation procedures ・ 操作方法 * Perform this operation procedure within 30 seconds after turning off the power.
A-S700 ■ IC DATA IC602: M30302MAP-A95FP (FUNCTION P.C.B.
A-S700 Pin No.
A-S700 A-S700 Pin No.
A B C D E F G H I J A-S700 ■ BLOCK DIAGRAM CD DIRECT IN CD DIRECT AMP SW801 ON RY103 R177,178 JK801 OPERATION POWER AMP MUTING Q804,805 19,22,25 8,9,12 C871,872 OFF • See page 46 → SCHEMATIC DIAGRAM PHONES HP RELAY MUTE CONTROL CD DIRECT ON RY101 2 A C119,120 ON 2,29 VIN 3,28 MUTE CONTROL MUTING Q815,816 • See page 46 → SCHEMATIC DIAGRAM 10,21 11dB ATT CD IC805 3 OFF PURE DIRECT SW802 ON B SPEAKER B RELAY IC802 TIN+ MIX IN TIN- PURE DIRECT ON OPERATION • See p
A B C D E F G H I A-S700 ■ PRINTED CIRCUIT BOARDS 1 FUNCTION (1) P.C.B. (Side A) FUNCTION (2) CB502 L/R L/R LINE1 L/R L/R 5 TUNER INPUT PB 4 L/R LINE2 REC PB LINE3 3 (CB602) L/R REC CB501 TUR TUL SELE CDR CDL SELE PHR PHL +15 SELR -15 SELL FUNCTION (2) MTZ2 CKEV CEEV DTEV DTRZ CKRZ CKIS CEIS DTIS MTSW MTPO TRIG MG RM2RM2+ RM1RM1+ (CB603) 2 6 • Semiconductor Location Ref no.
A B C D E F G H I J A-S700 1 FUNCTION (1) P.C.B. (Side B) 2 3 4 1 32 IC508 5 17 30 8 16 IC502 IC501 1 4 4 1 16 1 15 IC507 5 8 4 1 IC506 5 8 4 1 IC505 5 8 5 6 7 • Semiconductor Location Ref no.
A B C D E F G H I J A-S700 1 FUNCTION (2) P.C.B. (Side A) OPERATION (1) OPERATION (1) (CB803) MG RM1- 3 RM2KEY1 REC ISB /BLK SPSW ZPSW VRup PLED RM1+ PDon RM2+ MG MTCD +15 CDDR -15 CDDL E CDR E CDL E PHR E PHL CB607 (CB801) VRdn CLED CDon MTMI DTFD CB606 CKFD W601 OPERATION (1) +5S (CB816) CB611 +5M OPERATION (10) +15 SELR -15 SELL SELE CDDR SELE CDDL (CB802) 2 CEFD KEY0 N.C.
A B C D E F G H I J A-S700 1 FUNCTION (2) P.C.B. (Side B) 2 3 81 80 IC 2 60 100 1 51 50 4 A 30 31 5 POINT A XL601 (Pin 13 of IC602) 6 7 • Semiconductor Location Ref no.
A B C D E F G H I J A-S700 1 OPERATION (1) P.C.B.
A B C D E F G H I J A-S700 1 OPERATION (1) P.C.B. (Side B) 2 4 3 1 IC801 5 4 8 1 IC802 5 8 4 5 6 • Semiconductor Location Ref no.
A B C D E F G H I J A-S700 1 OPERATION (2) P.C.B. (Side A) OPERATION (3) P.C.B. (Side A) OPERATION (4) P.C.B.
A B C D E F G H I J A-S700 1 OPERATION (2) P.C.B. (Side B) OPERATION (3) P.C.B. (Side B) OPERATION (4) P.C.B. (Side B) 2 3 4 5 6 7 • Semiconductor Location Ref no.
A B C D E F G H I A-S700 1 OPERATION (5) P.C.B. (Side A) OPERATION (6) P.C.B. (Side A) OPERATION (7) P.C.B. (Side A) +15 +5M SP_LED REM MG (CB808) SPSW MG REC SPAB REM SP_LED +5S +15 +5M OPERATION (1) 2 +15 +5M SP_LED REM MG POWER ON/STANDBY OFF CB813 W806 W808 +5M SPSW CB814 3 CB815 POWER indicator SPSW +5M REC OUT SPEAKERS 4 OPERATION (8) P.C.B. (Side A) W811 OPERATION (9) P.C.B.
A B C D E F G H I J A-S700 1 OPERATION (5) P.C.B. (Side B) OPERATION (6) P.C.B. (Side B) OPERATION (7) P.C.B. (Side B) 2 3 4 OPERATION (8) P.C.B. (Side B) OPERATION (9) P.C.B. (Side B) 5 • Semiconductor Location Ref no.
A B C D E F G H A-S700 1 OPERATION (10) P.C.B. (Side A) PHL E PHR E CDL E CDR E CDDL -15 CDDR +15 MTCD FUNCTION (2) 2 (CB607) PHONO L/R CD L/R INPUT CB816 3 4 BASS -/+ TREBLE -/+ BALANCE L/R OPERATION (11) P.C.B.
A B C D E F G H I J A-S700 1 OPERATION (10) P.C.B. (Side B) 2 4 1 IC804 5 8 3 4 1 IC805 5 8 4 OPERATION (11) P.C.B. (Side B) 5 • Semiconductor Location Ref no.
A B C D E F G H I J A-S700 Safety measures • 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. • Note that positions indicated below are dangerous even after the power is turned off because an electric charge remains and a high voltage continues to exist there.
A B C D E F G H I J A-S700 1 MAIN (2) P.C.B. (Side A) MAIN (3) P.C.B. (Side A) MAIN (5) P.C.B.
A-S700 ■ PIN CONNECTION DIAGRAMS • ICs • Transistors BD3841FS LB1641 2N5401C-AT M30302MAP-A95FP LM61CIZ 80 2SA1037K 2SD1938F 1 2SK3850 2SA1145 2SC2705 D C 10 32 +VS VOUT GND 1 OP275GSR NJU7313AM G E 100 31 B 1 NJM2068MD-TE2 2SA970 2SA1015-Y (TPE2,F) 50 81 16 2N5551C-AT 51 S-812C55AY-T-G 30 TC4013BP E CE B E CB S B CB 2SA1694 O,P,Y 2SC4467 O,P,Y 2SA1358 O,Y 2SC3421 O,Y D CE 2SC1815 2SA1708 14 8 4 7 8 28 1 4 14 1 1 3 2 E 1 1 B CB 2SD1915F 2SD23
B A C D E F G H I J K L M N A-S700 SCHEMATIC DIAGRAMS FUNCTION Page 47 Page 46 C1 B3 0 13.5 0 IC505 INPUT 0 0 0 0 0 0 IC506 IC501 Page 46 0 B4 0 13.5 IC501 0 0 0 4 IC506 0 0 -13.3 0 CB606 POINT A XL601 (Pin 13 of IC602) CB611 IC601 0 0 0 CD IN 0 0 -13.3 0 Page 46 IC505 to OPERATION (1)_CB802 3 0 0 0 0 to OPERATION (1)_CB801 TUNER IN M5 to OPERATION (10)_CB816 CB605 2 Page 46 B8 to OPERATION (1)_CB803 to MAIN (1)_CB284 CB607 1 9.8 5.6 5.
B A C D E F G H I J K L M N A-S700 OPERATION 1 CD DIRECT AMP 2 W801 Page 47 OPERATION (11) OPERATION (2) B7 G3 Page 45 3 to FUNCTION (2)_CB611 to MAIN (1)_CB103 PD IN 0 CB801 -14.7 TONE IN 0 0 14.7 VOL OUT (CD DIRECT) 0 OUT L VOL IN IC803 0 -14.7 0 0 W805A W805B TONE OUT W802 CB804 F4 CD IN to OPERATION (1)_W814 G4 Page 45 to FUNCTION (2)_W601 TONE IN TONE IN (PURE DIRECT) 13.0 0 0 0 IC803 -14.
B A C D E F G H I J K L M N A-S700 MAIN Page 46 Page 45 K8 H2 To POWER TRANSFORMER to FUNCTION (2)_CB605 CB283 CB284 to OPERATION (8)_W811 CB285 1 MAIN (4) WJ36180 WJ36180 WJ36180 WJ36180 WJ36180 WE10290 WE10290 WE10290 WE10290 WE10290 WJ36180 WJ36180 WE10290 WE10290 CB128 MAIN (6) CB101 IMPEDANCE SELECTOR HIGH/LOW W101 IC101 6.0 CB106 1.0 0 AC84.8 20.8 CB102 W102 20.8 20.8 0 0 20.8 20.8 15.2 6.0 0.7 0 15.7 1.0 0 0 # 20.7 (46.8) 58.3 -20.
A-S700 ■ 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. The chip resistor is not supplied as a replacement part. * When a chip resistor is necessary, use the following part.
A-S700 P.C.B. FUNCTION Ref No. A-S700 * * * * * CB501 CB502 CB602 CB603 CB605 CB606 CB607 CB609 CB611 C501-506 C507-508 C509-510 C511-512 C513-516 C517-518 C519-530 C531-532 C533-536 C542-543 C550-551 C552-553 C558-559 C560-561 C601 C602-603 C604-605 C608 C609-610 C611 C612 C613 C614 C616 C619 D503-504 D601-602 D603-604 D605 D606 D607 IC501 IC502 IC505-508 IC601 IC602 PJ501 PJ502 PJ503 PN501 PN601 Q505 Q506 Q601-602 Q605 Q606 R525-526 Part No.
A-S700 P.C.B. FUNCTION and P.C.B. OPERATION Part No. V8070900 R.MTL.FLM V4040500 SCR.TERM WA674700 RSNR.
A-S700 P.C.B. OPERATION and P.C.B. MAIN * A-S700 * * * * * * * Ref No. C871-872 C873-874 C875-876 C877 C878-881 D801-807 D808 D809-810 D811-812 IC801 IC802-804 IC805 IC806 JK801 PJ801-802 PN801-803 PN805-809 Q801 Q802-805 Q806-814 Q815-816 R801-802 R806-807 R848 R851 R873 R884 R922 R925 R926 R929 ST801-802 SW801-802 SW803 SW804 SW805 SW806 U801 VR801 VR802 VR803 VR804 VR805 Part No.
A-S700 P.C.B. MAIN * * * * * * * Part No.
A-S700 P.C.B. MAIN * * * A-S700 * # # # # # # # # Ref No. C274 C275 D101-106 D107-108 D109 D111-112 D116-119 D120 D121-122 D133 D254 D255 D258 D259 D260 D262 D271-273 D274 D275 F251 F251 F252 F252 F291 G101 IC101-102 IC251 IC252 IC253 PN102-105 PN251 PN281 Q101 Q103-106 Q107-110 Q111-112 Q113-114 Q115-116 Q117-118 Q119A Q119C Q120A Q120C Q121 Q121A Q121C Q122A Q122C Q123A Q123C Q124A Q124C Q125-126 Q127-128 Q129 Q130 Q131 Part No.
A-S700 P.C.B. MAIN * * * * * Ref No. Q132-133 Q252 Q254 Q255-256 Q271 Q272 R111-112 R119-120 R121-122 R125-128 R129-130 R131-132 R133-134 R135-136 R143-144 R145-146 R149 R151-152 R153 R159 R165 R170 R171-172 R175-176 R177-178 R179 R187-194 R197-198 R207-208 RY101-103 RY251 ST101 ST102 ST251 ST271-272 SW101 SW291 SW291 T251 T251 T251 T251 TE101 TE101 TE251 TE251 TE251 TE251 TE251 TE295 Part No.
A B C D E F G H I J A-S700 1 • OVERALL ASS'Y K model 101 135 123 120 151 120 126 2 129 R model 129 129 6 (2) 120 172 120 120 123 128 181 R model 120 6 (8) 127 17 3 138 126 134 124 6 (3) 123 120 118 129 120 129 122 11 122 103 AMP UNIT 5 (1) 138 4 133 129 132 7 (10) 125 113 5 (2) 137 115 5 136 112 116 111 112-1 129 111-1 133 129 FRONT PANEL UNIT 137 125 6 R, L models 131 110 129 200 6 (5) 130 129 110 202 129 129 7 200-1 56 129 129
A-S700 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Ref No. 5 6 6 6 6 6 6 6 6 6 7 11 11 11 11 11 11 17 101 101 103 103 103 103 103 103 103 103 103 110 111 111 111-1 112 112 112-1 113 113 115 115 116 116 118 120 122 123 124 125 126 127 128 129 130 Part No.
A B C D E F G H I J A-S700 1 • FRONT PANEL and SUB PANEL UNIT 7 (6) 7 (8) 2-120 7 (5) 2 * * * * * 7 (11) * 7 (7) 2-120 * * 2-120 2-121 2-121 2-120 2-120 3 * Ref No. 1-1 1-1 1-4 1-5 1-5 1-6 1-6 1-7 2-8 2-16 2-40 2-50 2-120 2-121 7 Part No.
A B C D E F G H I J A-S700 1 • AMP UNIT 3-43 # # 6 (6) 3-1-6 3-43 3-2-1C 3-42 3-2-5 # # 2 3-1-5 3-1-1C 3-2-7 6 (7) 3-2-1A 3-2-5 3-2-6 3 3-42 3-1-5 3-1-1A 6-21 3-1-7 3-42 4 3-43 * * * * * * * * * * Ref No. 3-1-1A 3-1-1C 3-1-5 3-1-6 3-1-7 3-2-1A 3-2-1C 3-2-5 3-2-6 3-2-7 3-42 3-43 6 6 6 6 6 6 6 6 6 6-21 Part No.
A B C D E F G H I J A-S700 ■ REMOTE CONTROL 1 SCHEMATIC DIAGRAM PANEL KEY NO. LAYOUT VDD KEY CODE NO. Customer Code Data Code Function 1 7986 6F90 3 7986 01FE 4 7986 54AB 5 7986 6 7986 0AF5 CD 7 7986 11EE LINE1 8 7986 12ED LINE2 9 7986 13EC LINE3 10 7986 14EB PRESET PRESET R1 3.3 ohms C1 + C4 47uF/10V 0.1uF IR-LED IR1 2 U1 SC73P1601 1 2 GND P50 VDD P53 P51 P23 3 C2 C3 X1 3.
A-S700 MEMO A-S700 61
A-S700