Onkyo CR-305TX Service Manual
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QQ
3 7 63 1515 0
TE
L 13942296513
www
.
http://www.xiaoyu163.com
SERVICE MANUAL
CD RECEIVER
MODEL
STANDBY/ON
MEMORY FM MODE
CLEAR
PHONES
UDD,UDT
UGT,UGR,
UPP
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
x
ao
u163
y
i
http://www.xiaoyu163.com
2 9
8
CR-305TX
TUNING/PRESET
DISPLAY
INPUT
Silver model
Q Q
3
6 7
1 3
1 5
120V AC, 60Hz
220-230V AC, 50Hz
230-240V AC, 50Hz
ON THE
co
.
9 4
2 8
Ref. No. 3723
REMOTE CONTROLLER
STANDBY/ON
INPUT
TIMER
ENTER
RANDOM
CD
MEMORY REPEAT
SCROLL
MD
PLAY MODE
REPEAT
SLEEP
A.PRESENCE
VOLUME
CLOCK
CALL
MUTING
CDR
PLAY MODE REPEAT
TAPE
TUNER
PRESET
RC-421S
RC-421S
0 5
8
2 9
9 4
2 8
m
CR-305TX
9 9
062002
9 9

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Summary of Contents for Onkyo CR-305TX

  • Page 1 COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE THESE COMPONENTS WITH ONKYO PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL. MAKE LEAKAGE-CURRENT OR RESISTANCE...
  • Page 2: Laser Warning Label

    CR-305TX 3 7 63 1515 0 SERVICE PROCEDURES-1 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs a laser. Therefore, be sure to follow Laser Diode Properties carefully the instructions below when servicing. Material: GaAS/GaAlAs WARNING!! Wavelength: 780nm Laser output: max.
  • Page 3 CR-305TX 3 7 63 1515 0 SERVICE PROCEDURES-2 SERVICE PROCEDURES 1. Replacing the fuses This symbol located near the fuse indicates that the fuse used is show operating type, For continued protection against fire hazard, replace with same type fuse , For fuse rating, refer to the marking adjest to the symbol.
  • Page 4: Packing View

    SET FRONT PARTS LIST [NOTE] REF.NO. PART NO. DESCRIPTION REMARKS <DD> : USA & Canadian model only 6007210450000 BOX GIFT CR-305TX <PP> : European Model only 6230210504000 CUSHION SNOW EPS 29095835 Sheet 0.515 x 650 x 550 29110149 Tape 29110141...
  • Page 5: Printed Circuit Board Parts List

    CR-305TX 3 7 63 1515 0 PRINTED CIRCUIT BOARD PARTS LIST-1 U1:AUDIO PC BOARD (NAAF-6874) U2:POWER SUPPLY PC BOARD (NAPS-6878) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Q401 TC9273N-007 22241072 Q901 222780125 78M12HF Q402 22240981R2 TC9162AF...
  • Page 6 CR-305TX 3 7 63 1515 0 PRINTED CIRCUIT BOARD PARTS LIST-2 U3:FRONT PC BOARD (NADIS-6879) U5:SPEAKER PC BOARD (NAETC-6881) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Coils FL Tube L551,L552 231176S S-1.3C Q751 212141 10BT-167GK Resistors...
  • Page 7 CR-305TX 3 7 63 1515 0 PRINTED CIRCUIT BOARD PARTS LIST-3 U8:CD PC BOARD (NAAR-6875) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PARTS NO. DESCRITION Resistor Q101 22241499R3 CXA1992BR R123 5210263 N06HR20KBC, Trimming resister Q102 22241247 LA6541D Sockets Q103...
  • Page 8 CR-305TX 3 7 6 3 1 5 1 5 0 PC BOARD CONNECTION DIAGRAM L 1 3 9 4 2 2 9 6 5 1 3 u 1 6 3 http://www.xiaoyu163.com...
  • Page 9: Schematic Diagrams

    CR-305TX 3 7 63 1515 0 SCHEMATIC DIAGRAMS-2 (CD AND MICROPROCESSOR SECTION) NAETC-6883 CONNECTOR PC BOARD FOCUS GAIN ADJUST R832 R128 C119 R845 SL_P R833 0 R131 SL_M15 C106 474 R831 TDFCT SL_O16 220K C105 103 ISET17 R132 R847...
  • Page 10 CR-305TX 3 7 63 1515 0 NAAR-6875 CD CIRCUIT PC BOARD C352 103 3.3K R356 C351 0.47/50 C360 R361 1K C362 1K EGND PCMD VSS2 VDD1 PCMDI 42 R363 1K BCK 43 XLON BCKI 44 R736 SPOB VSS3 45...
  • Page 11: Block Diagram

    CR-305TX 3 7 6 3 1 5 1 5 0 BLOCK DIAGRAM Q403,Q404 POWER AMPLIFIER ACOUSTIC PRESENCE CONTROL Q401 INPUT SELECTOR TC9273N-007 VOLUME TAPE R425 PLAY P551 Q603,Q405 SPEAKERS MUTING Q601,Q602 PLAY AMP. MUTE +12V Q402 13 ST USA & Canadian models only...
  • Page 12 CR-305TX 3 7 63 1515 0 EXPLODED VIEWS OF MECHANISM-1 CD MECHANISM:WSL-2130CCM NCD-170S Model No. CD Mechanism CR-305X NCD-170S CR-305TX WSL-2130CCM NCD-170S and WSL-2130CCM consist of almost same parts. ---Different parts to NCD-170S The parts which constitute NCD-170S can use it as substitution parts.
  • Page 13 CR-305TX 3 7 63 1515 0 EXPLODED VIEWS OF MECHANISM-2 CD MECHANISM:WSL-2130CCM (CD DRIVE UNIT) L 13942296513 PARTS LIST REF. NO. PART NO. DESCRIPTION X2625-877-1 Motor chassis ass'y X2625-769-1 Motor gear ass'y 2626-908-01 Sled shaft 24810023 Gear (A) (S)
  • Page 14: Exploded View Parts List

    CR-305TX 3 7 6 3 1 5 1 5 0 EXPLODED VIEW PARTS LIST-1 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION 252157 1.25A-UL/T-237, Fuse <DD, DT> 3217210171000 FRAME FRONT F901 838130088 3TTB+8B, Self tapping screw 252083 0.4A-SE-EAW, Fuse...
  • Page 15 CR-305TX 3 7 6 3 1 5 1 5 0 EXPLODED VIEW PARTS LIST-2 REF NO. PART NO. DESCRIPTION 7028061541010 PCB AUDIO ASSY 7028061542010 PCB SUPPLY ASSY <DD, DT> 7028061542030 PCB SUPPLY ASSY <PP> 7028061542040 PCB SUPPLY ASSY <GT,GR>...
  • Page 16: Exploded View

    http://www.xiaoyu163.com CR-305X 3 7 6 3 1 5 1 5 0 EXPLODED VIEW P901 P901 (PP type) P352 (DD,DT type) P303 P351 P302 P778 Q557 L 1 3 9 4 2 2 9 6 5 1 3 Q558 Q557A Q559 Q557B Q560 T901...
  • Page 17: Panel View

    CR-305TX 3 7 63 1515 0 PANEL VIEW REAR PANEL Do not connect the AC power cord (mains lead) to the wall outlet (the mains) until you have completed all the other connections including the connections on page 7, and the speaker connections on page 8.
  • Page 18 Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN Tel: 072-831-8111 Fax: 072-833-5222 ONKYO U.S.A. CORPORATION 18 Park Way, Upper Saddle River, N.J. 07458, U.S.A. Tel: 201-785-2600 Fax: 201-785-2650 E-mail: onkyo@onkyousa.com ONKYO EUROPE ELECTRONICS GmbH Industriestrasse 20, 82110 Germering, GERMANY Tel: 089-849-320 Fax: 089-849-3265 E-mail: info@onkyo.de...
  • Page 19 CR-305TX 3 7 63 1515 0 SERVICE PROCEDURES-1 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs a laser. Therefore, be sure to follow Laser Diode Properties carefully the instructions below when servicing. Material: GaAS/GaAlAs WARNING!! Wavelength: 780nm Laser output: max.
  • Page 20 CR-305TX 3 7 63 1515 0 SERVICE PROCEDURES-2 SERVICE PROCEDURES 1. Replacing the fuses This symbol located near the fuse indicates that the fuse used is show operating type, For continued protection against fire hazard, replace with same type fuse , For fuse rating, refer to the marking adjest to the symbol.
  • Page 21 CR-305TX 3 7 63 1515 0 PANEL VIEW REAR PANEL Do not connect the AC power cord (mains lead) to the wall outlet (the mains) until you have completed all the other connections including the connections on page 7, and the speaker connections on page 8.
  • Page 22 CR-305TX 3 7 6 3 1 5 1 5 0 BLOCK DIAGRAM Q403,Q404 POWER AMPLIFIER ACOUSTIC PRESENCE CONTROL Q401 INPUT SELECTOR TC9273N-007 VOLUME TAPE R425 PLAY P551 Q603,Q405 SPEAKERS MUTING Q601,Q602 PLAY AMP. MUTE +12V Q402 13 ST USA & Canadian models only...
  • Page 23 CR-305TX 3 7 63 1515 0 EXPLODED VIEWS OF MECHANISM-1 CD MECHANISM:WSL-2130CCM NCD-170S Model No. CD Mechanism CR-305X NCD-170S CR-305TX WSL-2130CCM NCD-170S and WSL-2130CCM consist of almost same parts. ---Different parts to NCD-170S The parts which constitute NCD-170S can use it as substitution parts.
  • Page 24 CR-305TX 3 7 63 1515 0 EXPLODED VIEWS OF MECHANISM-2 CD MECHANISM:WSL-2130CCM (CD DRIVE UNIT) L 13942296513 PARTS LIST REF. NO. PART NO. DESCRIPTION X2625-877-1 Motor chassis ass'y X2625-769-1 Motor gear ass'y 2626-908-01 Sled shaft 24810023 Gear (A) (S)
  • Page 25 CR-305TX 3 7 6 3 1 5 1 5 0 EXPLODED VIEW PARTS LIST-1 REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION 252157 1.25A-UL/T-237, Fuse <DD, DT> 3217210171000 FRAME FRONT F901 838130088 3TTB+8B, Self tapping screw 252083 0.4A-SE-EAW, Fuse...
  • Page 26 CR-305TX 3 7 6 3 1 5 1 5 0 EXPLODED VIEW PARTS LIST-2 REF NO. PART NO. DESCRIPTION 7028061541010 PCB AUDIO ASSY 7028061542010 PCB SUPPLY ASSY <DD, DT> 7028061542030 PCB SUPPLY ASSY <PP> 7028061542040 PCB SUPPLY ASSY <GT,GR>...
  • Page 27 http://www.xiaoyu163.com CR-305X 3 7 6 3 1 5 1 5 0 EXPLODED VIEW P901 P901 (PP type) P352 (DD,DT type) P303 P351 P302 P778 Q557 L 1 3 9 4 2 2 9 6 5 1 3 Q558 Q557A Q559 Q557B Q560 T901...
  • Page 28 CR-305TX 3 7 63 1515 0 SCHEMATIC DIAGRAMS-1 AMPLIFIER AND POWER SUPPLY SECTION P400 R401 C409 NJM4565MD C429 2.2K R403 22/16 R463 (REC) 22/16 Q403 R404 R402 2.2K Q403 NJM4565M 2.2K C419 TAPE R455 R405 R407 R443 R445 Q401 TC9273N-007...
  • Page 29: Power Supply

    CR-305TX 3 7 63 1515 0 R491 To NAETC-6882 JL405B R493 Q557 560 (1W) JL405A 2SC3851-O,-Y 22.2 UDD type only (1/2W) (1/2W) Q553 21.1 2SC2235-O,-Y 20.4 21.1 Q515 R565 5.6 20.4 SPEAKERS Q509 2SA1015GR (1/2W) Q503 Q501 L551 C513...
  • Page 30 CR-305TX 3 7 63 1515 0 SCHEMATIC DIAGRAMS-2 (CD AND MICROPROCESSOR SECTION) NAETC-6883 CONNECTOR PC BOARD FOCUS GAIN ADJUST R832 R128 C119 R845 SL_P R833 0 R131 SL_M15 C106 474 R831 TDFCT SL_O16 220K C105 103 ISET17 R132 R847...
  • Page 31 CR-305TX 3 7 63 1515 0 NAAR-6875 CD CIRCUIT PC BOARD C352 103 3.3K R356 C351 0.47/50 C360 R361 1K C362 1K EGND PCMD VSS2 VDD1 PCMDI 42 R363 1K BCK 43 XLON BCKI 44 R736 SPOB VSS3 45...
  • Page 32 CR-305TX 3 7 6 3 1 5 1 5 0 PC BOARD CONNECTION DIAGRAM L 1 3 9 4 2 2 9 6 5 1 3 u 1 6 3 http://www.xiaoyu163.com...
  • Page 33: Printed Circuit Board Parts List

    CR-305TX 3 7 63 1515 0 PRINTED CIRCUIT BOARD PARTS LIST-1 U1:AUDIO PC BOARD (NAAF-6874) U2:POWER SUPPLY PC BOARD (NAPS-6878) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Q401 TC9273N-007 22241072 Q901 222780125 78M12HF Q402 22240981R2 TC9162AF...
  • Page 34 CR-305TX 3 7 63 1515 0 PRINTED CIRCUIT BOARD PARTS LIST-2 U3:FRONT PC BOARD (NADIS-6879) U5:SPEAKER PC BOARD (NAETC-6881) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Coils FL Tube L551,L552 231176S S-1.3C Q751 212141 10BT-167GK Resistors...
  • Page 35 CR-305TX 3 7 63 1515 0 PRINTED CIRCUIT BOARD PARTS LIST-3 U8:CD PC BOARD (NAAR-6875) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PARTS NO. DESCRITION Resistor Q101 22241499R3 CXA1992BR R123 5210263 N06HR20KBC, Trimming resister Q102 22241247 LA6541D Sockets Q103...
  • Page 36 SET FRONT PARTS LIST [NOTE] REF.NO. PART NO. DESCRIPTION REMARKS <DD> : USA & Canadian model only 6007210450000 BOX GIFT CR-305TX <PP> : European Model only 6230210504000 CUSHION SNOW EPS 29095835 Sheet 0.515 x 650 x 550 29110149 Tape 29110141...
  • Page 37 Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN Tel: 072-831-8111 Fax: 072-833-5222 ONKYO U.S.A. CORPORATION 18 Park Way, Upper Saddle River, N.J. 07458, U.S.A. Tel: 201-785-2600 Fax: 201-785-2650 E-mail: onkyo@onkyousa.com ONKYO EUROPE ELECTRONICS GmbH Industriestrasse 20, 82110 Germering, GERMANY Tel: 089-849-320 Fax: 089-849-3265 E-mail: info@onkyo.de...

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