Denon DRA-201SA Service Manual
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MODEL
For purposes of improvement, specifications and
design are subject to change without notice.
Please use this service manual with referring to the
operating instructions without fail.
Some illustrations using in this service manual are
slightly different from the actual set.
SERVICE MANUAL
DRA-201SA
AM-FM STEREO RECEIVER
TOKYO, JAPAN
Denon Brand Company, D&M Holdings Inc.
注 意
サービスをおこなう前に、このサービスマニュアルを
必ずお読みください。本機は、火災、感電、けがなど
に対する安全性を確保するために、さまざまな配慮を
おこなっており、また法的には「電気用品安全法」に
もとづき、所定の許可を得て製造されております。
従ってサービスをおこなう際は、これらの安全性が維
持されるよう、このサービスマニュアルに記載されて
いる注意事項を必ずお守りください。
 本機の仕様は性能改良のため、予告なく変更すること
 があります。
 補修用性能部品の保有期間は、製造打切後8年です。
 修理の際は、必ず取扱説明書を参照の上、作業を行っ
 てください。
 本文中に使用しているイラストは、説明の都合上現物
 と多少異なる場合があります。
For Europe model
Ver. 3
Please refer to the
MODIFICATION NOTICE.
X0132V.03 DE/CDM 0609

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Summary of Contents for Denon DRA-201SA

  • Page 1 Please use this service manual with referring to the  修理の際は、必ず取扱説明書を参照の上、作業を行っ ● ● operating instructions without fail.  てください。   Some illustrations using in this service manual are  本文中に使用しているイラストは、説明の都合上現物 ● ● slightly different from the actual set.  と多少異なる場合があります。   TOKYO, JAPAN Denon Brand Company, D&M Holdings Inc. X0132V.03 DE/CDM 0609...
  • Page 2 DRA-201SA SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check.
  • Page 3 DRA-201SA DISASSEMBLY (Follow the procedure below in reverse order when reassembling) 1. Top Cover Top Cover 1. Remove 4 screws on both sides. 2. Remove 5 screws on the Rear Panel. 3. Detach the Cover as shown in the arrow direction.
  • Page 4: Tuner Pack

    DRA-201SA 4. µ µ µ µ µ -com P.W.B. (1U-3382C-3) Power SW Unit 1. Remove 2 screws to detach the Power SW Unit. 2. Remove the Nut and 5 screws µ-com P.W.B. (1U-3382C-3) 5. Input PWB (1U-3382C-2) Remove 3 screws and 1 screw Input P.W.B.
  • Page 5: Block And Level Diagram

    DRA-201SA BLOCK AND LEVEL DIAGRAM...
  • Page 6 DRA-201SA ADJUSTMENT DC Voltmeter TP501 VR501 VR502 Trance TP502 Volume IDLING CURRENT Setup 1. Place the unit at an ordinary position avoiding direct air flow from an air-conditioner or fan. Do the adjustment at a temperature between 15 °C (59 °F) and 30 °C (86 °F).
  • Page 7 DRA-201SA CHECK Connection Diagram 1U-3393-1 Main P.W.B. (Component Side) Mod.Frequency : 400Hz Modulation : 30% AM SSG Test Loop Mod.Frequency : 1kHz : 90%(67.5kHz Dev.) Pilot : 10%(7.5kHz Dev.) 75kHz Dev. : 100% 60 cm FM ST SSG Loop Ant.
  • Page 8 — — — — — Positive power 17 P27/SCK0 DB_CLK — — — — DENON bus clock output 18 P26/SO0/SB1 DB_TXD — — — — DENON bus data output 19 P25/SO0/SB0 DB_RXD — — — — DENON bus data input...
  • Page 9 36 P03/INTP3 PROTECT — — — — Amp protect input 37 P02/INTP2 DBRXD — — — — DENON bus data input 38 P01/INTP1 50/60 — — — 50/60 Hz AC input 39 P00/INTP0 REMOCON — — — — Remote control input 40 V —...
  • Page 10 DRA-201SA TC9273N-004 (IC201) L-ch R-ch DATA Level Shift+Shift Regist Circuit GND CK DATA STB TC9459F (IC302) L-OUT R-OUT 50kW / 91STEP L-IN R-IN Same as L-ch L-LD1 R-LD1 L-LD2 R-LD2 L-A-GND R-A-GND L-ch 7 to 91 decoder R-ch 7 to 91 decoder...
  • Page 11: Top View

    DRA-201SA TC9184AP (IC304) CK DATA STB Level shift BASS+ BASS+ BASS- BASS- TREBLE- TREBLE- Code detect TREBLE+ TREBLE+ circuit 93LC66 (IC905) DUMMY BIT DATA REGISTER INSTRUCTION REGISTER R/W AMPS INSTRUCTION ADDRESS DECODE DECODER MEMORY ARRAY REGISTER CONTROL 256/512 X 8...
  • Page 12 DRA-201SA TRANSISTORS 2SA988 (E/F) 2SA1837 (Y) 2SC4495 (O/Y) 2SC1841 (E/F) 2SC4793 (Y) B (Base) E (Emitter) C (Collector) C (Collector) E (Emitter) E (Emitter) B (Base) C (Collector) B (Base) 2SK184C (GR)/(BL) 2SB1383 (P/Y) 2SB1328 2SD2083 (P/Y) FRONT VIEW S (Source)
  • Page 13 DRA-201SA DIODES (including LED) 1N4148 1SR35-400A MTZJ2.7A SLR-9335DS-91 (LD901) 1SS270A MTZJ3.3A MTZJ5.6A Green MTZJ6.2A MTZJ7.5C MTZJ18A Navy Blue MTZJ39A Green Anode Red Anode Common Cathode Black FMG22S FMG22R K (Cathode) A (Anode) A (Anode) K (Cathode) K (Cathode) A (Anode)
  • Page 14 DRA-201SA FL DISPLAY (FL901) 11-BT-187GNK (Part No.:393 8054 002) Pin Connection 12 13 14 16 17 19 20 23 24 Pin No. Connection F1 NP NP 1G 2G 3G 4G 5G 6G 7G 8G 9G 10G 11G NC NC NC NC NC NC NC NC NC Pin No.
  • Page 15: Printed Wiring Board

    DRA-201SA PRINTED WIRING BOARD 1U-3382C MAIN P.W.B. UNIT Ass'y COMPONENT SIDE...
  • Page 16 DRA-201SA 1U-3382C MAIN P.W.B. UNIT Ass'y FOIL SIDE...
  • Page 17: Note For Parts List

    DRA-201SA NOTE FOR PARTS LIST Part indicated with the mark " " are not always in stock and possibly to take a long period of time for supplying, or in some case supplying of part may be refused. When ordering of part, clearly indicate "1" and "I" (i) to avoid mis-supplying.
  • Page 18: Parts List Of P.w.b. Unit

    DRA-201SA PARTS LIST OF P.W.B. UNIT *本表に記載されている部品は、補修用部品のため製品に使用している部品とは一部、形状、寸法などが異なる場合があります。 * The parts listed below are for maintenance only, might differ from the parts used in the unit in appearances or dimensions. * "nsp" 印の部品は常時在庫していませんので供給に長時間を要することがあります。場合によっては、供給をお断りする場合があります。 * Part indicated with the mark “nsp” are not always in stock and possibly to take a long period of time for supplying, or in some case supplying of part may be refused.
  • Page 19 DRA-201SA Ref. No. Part No. Part Name Remarks Q'ty ZD103 00D 276 0645 981 MTZJ39A T77 ZD501-504 00D 276 0643 925 MTZJ2.7A T77 ZD901 00D 276 0643 996 MTZJ5.6A T77 ZD902,903 00D 276 0637 902 MTZJ6.2AT77 ZD904 00D 276 0634 905 MTZJ3.3AT77...
  • Page 20 DRA-201SA Ref. No. Part No. Part Name Remarks Q'ty C509,510 00D 255 4250 977 CQ93P2A390JT(NH2) C519,520 00D 254 4313 963 CE04W1H010MT(ASF) C523,524 00D 254 4580 712 CE04W1H101MC(ROB) C525,526 00D 255 1264 908 CQ93M1H102JT(B) C527,528 00D 256 1058 971 CF93A1H104JT (JL)
  • Page 21 DRA-201SA Ref. No. Part No. Part Name Remarks Q'ty CX051 00D 205 0343 058 5P CONN.BASE(KR-PH) CX071 00D 205 0343 074 7P CONN.BASE(KR-PH) CX081 00D 205 0343 087 8P CONN.BASE(KR-PH) CX091 00D 205 0343 090 9P CONN.BASE(KR-PH) CX111,112 00D 205 0375 013 11P CON.BASE(KR-PH)
  • Page 22: Exploded View

    DRA-201SA EXPLODED VIEW WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.
  • Page 23: Parts List Of Exploded View

    G 113 1912 040 Knob 5 REN Ass’y 25 143 1131 000 Remocon filter 26 144 2777 217 Front panel 27 131 0156 106 DENON badge 28 143 1129 012 Window 29 112 0886 019 Knob(M) Ass’y 30 112 0884 105 Knob(F) Ass’y...
  • Page 24: Packing View

    DRA-201SA PACKING VIEW PARTS LIST OF PACKING & ACCESSORIES Ref. No. Part No. Part Name Remarks Q'ty Ref. No. Part No. Part Name Remarks Q'ty 201 505 0038 030 Poly cover 210 502 0965 007 Cushion(F-B) 202 511 3850 003 Inst manual(E2) 211 502 0966 006 Cushion(R-A) 203 515 0867 101 S.S.list(EX)
  • Page 25 DRA-201SA FORMING CUSHIONS narrow Cushion (F) Ass'y wide narrow wide wide Match the mark. narrow Match the narrow mark. wide narrow Cushion (R) Ass'y wide narrow wide wide Match the mark. narrow narrow Match the wide mark.
  • Page 26: Wiring Diagram

    DRA-201SA WIRING DIAGRAM 1U-3382C-2 CY034 TUNER PACK CY091 CX031 CY112 CY071 1U-3382C-1 CX112 CZ041 CX701 CX071 CX051 CX704 CX081 CX091 CX035 CX152 CX032 P . TRANS 1U-3382C-10 CY051 CX036 CX038 CY081 CX034 CY111 CY152 CX037 1U-3382C-6 CY037 CY038 CW036 1U-3382C-3...
  • Page 27 DRA-201SA SCHEMATIC DIAGRAMS (1/2) +33.3V +15.2V +15.2V -15.7V -33.6V -15.8V +15.3V -15.9V +33.3 12.0V +15.4 +26.7 -35.3V -15.9 -33.6 -63.5V 5.0V 8.9V + B LINE - B LINE Rch SIGNAL LINE Lch SIGNAL LINE WARNING: NOTICE Parts marked with this symbol have critical characteristics.
  • Page 28 DRA-201SA SCHEMATIC DIAGRAMS (2/2) +5.06V -39V + B LINE - B LINE WARNING: NOTICE Parts marked with this symbol have critical characteristics. ALL RESISTANCE VALUES IN OHM. k=1,000 OHM M=1,000,000 OHM Use ONLY replacement parts recommended by the manufacture. ALL CAPACITANCE VALUES IN MICRO FARAD. P=MICRO-MICRO FARAD...

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