Denon DRA-CX3 Service Manual
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Denon DRA-CX3 Service Manual

Denon am-fm stereo receiver service manual
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See also: Owner's Manual , Manual Del Usuario
QQ
3 7 63 1515 0
TE
L 13942296513
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.
www
.
http://www.xiaoyu163.com
SERVICE MANUAL
MODEL
AM-FM STEREO RECEIVER
x
ao
u163
y
i
Denon Brand Company, D&M Holdings Inc.
http://www.xiaoyu163.com
2 9
8
DRA-CX3
Q Q
3
6 7
1 3
1 5
co
TOKYO, JAPAN
.
9 4
2 8
For Europe model
Ver. 2
Please refer to the
MODIFICATION NOTICE.
0 5
8
2 9
9 4
2 8
,
m
X0314 V.02 DE/CDM 0703
9 9
9 9

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  • Page 1 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. u163 TOKYO, JAPAN Denon Brand Company, D&M Holdings Inc. X0314 V.02 DE/CDM 0703 http://www.xiaoyu163.com...
  • Page 2 DRA-CX3 3 7 6 3 1 5 1 5 0 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: Caution In Servicing

    DRA-CX3 CAUTION IN SERVICING 3 7 63 1515 0 Initializing AM-FM RECEIVER AM-FM RECEIVER initialization should be performed when the µcom and peripheral parts of µcom are replaced. 1. Switch off the unit using the Main unit’s power operation switch.

  • Page 4: Troubleshooting

    DRA-CX3 TROUBLESHOOTING 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 5 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 L 1 3 9 4 2 2 9 6 5 1 3 u 1 6 3 http://www.xiaoyu163.com...
  • Page 6 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 L 1 3 9 4 2 2 9 6 5 1 3 u 1 6 3 http://www.xiaoyu163.com...

  • Page 7: Block Diagram

    DRA-CX3 SEMICONDUCTORS / 3 7 63 1515 0 Only major semiconductors are shown, general semiconductors etc. are omitted to list. IC's M3062LFGPGP (IC501) /CS0 /CS1 /CS2 /CS3 /WRL/WR /WRH/BHE /BCLK /HLDA M16C/62P Group /HOLD /ALE /RDY/CLK /CTS /RTS /CLK...
  • Page 8 DRA-CX3 Terminal Function 3 7 63 1515 0 Pin No. Port Name Initial Function Not Used. FL_RESET Reset output to driver built into FL display tube. (Low pulse of a microsecond or more .) TONE_DATA Data output to TC9184AP. (20bit) TONE_STROBE Strobe output to TC9184AP.
  • Page 9 DRA-CX3 Pin No. Port Name Initial Function 3 7 63 1515 0 LINE3 Output for input selection relay. (H : select LINE3) TU_POWER Tuner power ON/OFF control. (H : Tuner ON) Power supply. TUNER Output for input selection relay. (H : select TUNER) GND.
  • Page 10 DRA-CX3 DA428440E-E (IC702) 3 7 63 1515 0 BLOCK DIAGRAM Control chip OCM 6 Current Prot / HF Prot 25 ZB1 23 FB1 VDCK 10 32 PWMFB1 VSCK 8 Voltage check Driver chip1 DCG 7 27 VD1 Current 28 VD1...
  • Page 11 DRA-CX3 Terminl Function 3 7 63 1515 0 Pin No. Pin Name Function AGND Analog ground for control chip power supply. Negative power supply for control chip (-5V). Thermal Monitor Error signal of open collector output “L” for two conditions.

  • Page 12: Pin Connection

    DRA-CX3 TC9184AP (IC307) 3 7 63 1515 0 PIN CONNECTION BLOCK DIAGRAM L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 13 DRA-CX3 TC94A32F (IC306) 3 7 63 1515 0 L 13942296513 TC74VHCT08AFT (IC504) TC74LCX08FT (IC602) u163 http://www.xiaoyu163.com...
  • Page 14 DRA-CX3 BA05FP (IC502) 3 7 63 1515 0 BA033FP (IC601) 1: Vcc 2: N.C. 3: Vout FIN: GND BR93L86RFVM-WTR (IC505) L 13942296513 SA5532ADR (IC301) OP275GSR (IC302) NJM2068MD-TE1 (IC303) OPA2134UA (IC304,701) NJM4556AD (IC305) NJM082D (IC401) A OUTPUT u163 B OUTPUT A –INPUT...
  • Page 15 DRA-CX3 NJM7812FA(SS)-#4MS (IC202) 3 7 63 1515 0 GP1UM271XK (IC503) Head Limiter Detector & Hysteresis Integrator Comparator Comparator GND Vcc Vout LC72722PM-TLM-E (IC201) Pin Assignment V REF MPXIN Vdda Vssa FLOUT L 13942296513 RDS-ID SYNC Vssd Vddd X OUT...
  • Page 16 DRA-CX3 3 7 63 1515 0 ıTRANSISTORS KTA1268BL 2SA1837 (Y) 2SK373 (Y) 2SK170 (BL) KTC3200BL 2SC4793 (Y) 2SK369 (BL/GR)-C FRONT FRONT FRONT FRONT VIEW VIEW VIEW VIEW B C E D G S DIODES (LED included) 1SS270A MTZJ3.3A SLI-343DU3F (ORG)
  • Page 17 DRA-CX3 FL DISPLAY 3 7 63 1515 0 8BT258GINK (FL 601) PIN CONNECTION GRID ASSIGNMENT SEGMENT DESIGNATION L 13942296513 ANODE CONNECTION u163 http://www.xiaoyu163.com...

  • Page 18: Printed Wiring Board

    PRINTED WIRING BOARD DRA-CX3 3 7 6 3 1 5 1 5 0 1U-3787 MAIN P.W.B. UNIT COMPONENT SIDE 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...

  • Page 19: Foil Side

    DRA-CX3 1U-3787 MAIN P.W.B. UNIT FOIL SIDE 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...

  • Page 20: Note For Parts List

    DRA-CX3 NOTE FOR PARTS LIST 3 7 63 1515 0 • 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 21: Parts List Of P.w.b. Unit

    DRA-CX3 PARTS LIST OF P.W.B. UNIT 3 7 63 1515 0 The parts listed below are for maintenance only, might differ from the parts used in the unit in appearances or dimensions. 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 22 DRA-CX3 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Q'ty D401,402 00D 276 0432 903 1SS270A TE (TAPE) D501,502 00D 276 0704 903 1SR35-400A(T93X) D503-505 00D 276 0794 900 KDS160-RTK/P D506-508 00D 276 0833 900...
  • Page 23 DRA-CX3 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Q'ty C311,312 00D 254 4777 716 CE04W1H470MC(RGO#A) C313,314 00D 254 4702 943 CE04W1H4R7MT(RFS#A) C315,316 00D 255 4250 964 CQ93P2A330JT(NH2) C317-319 00D 257 0509 929 CK73B1H102KT +1608...
  • Page 24 DRA-CX3 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Q'ty C613 00D 254 4574 922 CE04W1H101MT(RA3) C614 00D 254 4699 904 CE04W1E101MT(R2A) C615-618 00D 257 0506 951 CC73CH1H101JT +1608 C619 00D 254 4699 904 CE04W1E101MT(R2A)

  • Page 25: Push Switch

    DRA-CX3 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Q'ty F108 00D 206 1015 032 FUSE (2.5A) F108 00D 513 3730 048 FUSE LABEL(T2.5AL) FB701,702 00D 247 0018 905 RM73B--0R0KT +2125 FB703 00D 247 2018 903...

  • Page 26: Exploded View

    DRA-CX3 EXPLODED VIEW 3 7 6 3 1 5 1 5 0 WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. POWER SUPPLY UNIT BLUE 1 3 9 4 2 2 9 6 5 1 3...

  • Page 27: Parts List Of Exploded View

    DRA-CX3 PARTS LIST OF EXPLODED VIEW 3 7 63 1515 0 The parts listed below are for maintenance only, might differ from the parts used in the unit in appearances or dimensions. 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 28 DRA-CX3 Ref. No. Part No. Part Name Remarks Q'ty 3 7 63 1515 0 00D 125 0096 012 NITFLON TAPE (W25) 00D 125 0075 020 CHUKOH TAPE 00D GEN 6863 -4 RATING SUB ASSY 00D 513 3286 000 CAUTION LABEL...

  • Page 29: Packing View

    DRA-CX3 PACKING VIEW 3 7 63 1515 0 204 205 207 208 206 220 PARTS LIST OF PACKING & ACCESSORIES L 13942296513 The parts listed below are for maintenance only, might differ from the parts used in the unit in appearances or dimensions.

  • Page 30: Note For Schematic Diagram

    DRA-CX3 NOTE FOR SCHEMATIC DIAGRAM 3 7 63 1515 0 1. WARNING: Parts marked with this symbol have critical charac- teristics. Use ONLY replacement parts recommended by the manufacturer. 2. CAUTION: µ 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 31 1 3 9 4 2 2 9 6 5 1 3 -8.9V -8.9V +11.9V -14.8V -14.8V +11.9V +14.8V +14.8V -14.8V w w w SIGNAL LINE u 1 6 3 DRA-CX3 Europe model only SCHEMATIC DIAGRAMS (1/3) 1U-3787 B-1 MAIN UNIT (1/2) 1U-3787 B-4 HEAD PHONE UNIT -14.8V http://www.xiaoyu163.com...
  • Page 32 +4.9V +8.0V +5.7V w w w +45.1V +33.0V u 1 6 3 DRA-CX3 Europe model only SCHEMATIC DIAGRAMS (2/3) 1U-3787 B-2 M_CON UNIT 1U-3787 B-3 DISPLAY UNIT 1U-3787 B-5 ENCODER UNIT 1U-3787 B-7 R. SENSOR UNIT 1U-3787 B-8 LED UNIT...
  • Page 33 1 3 9 4 2 2 9 6 5 1 3 -47.7V -14.8V +47.7V w w w SIGNAL LINE u 1 6 3 DRA-CX3 Europe model only SCHEMATIC DIAGRAMS (3/3) 1U-3787 B-1 MAIN UNIT (2/2) 1U-3787 B-6 P. SW UNIT 1U-3787 B-9 SP TERMINAL UNIT http://www.xiaoyu163.com...

  • Page 34: Documents For Weee

    DRA-CX3 DOCUMENTS FOR WEEE 3 7 63 1515 0 Details of Recycle Parts You have to remove the parts that marked “WEEE Mark " when the recycling processing. (Europe model only) Part indicated with the mark " " is not illustrated in the exploded view.
  • Page 35 DRA-CX3 WEEE 3 7 63 1515 0 Ref. No. Part Name Material Q'ty Mark WINDOW PMMA LENS(POWER) PMMA REMOCON WINDOW PMMA REMOCON FILTER CAPACITOR(CE04W1J822M(DL)) COMPLEX Steel SHIELD PLATE Silicon steel INSULATING SHEET RUBBER SHEET IC702(DA428440E-E) COMPLEX RUBBER SHEET INSULATING SHEET...
  • Page 36 DRA-CX3 Exploded view for WEEE 3 7 6 3 1 5 1 5 0 You have to remove the parts that marked "WEEE mark " when the recycling processing. (Europe model only) This part refers to a detailed drawing and disassembles.
  • Page 37 DRA-CX3 Details of Recycle parts for Transformer 3 7 63 1515 0 Part No.17-2 : Transformer You have to remove the parts that marked "WEEE mark " when the recycling processing. (Europe model only) WEEE Parts Name Material Mark...

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