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DTR-50.1 Ref. No. 4175 SERVICE MANUAL SERVICE MANUAL Aug, 2009 AV RECEIVER DTR-50.1(B) MODEL RC-746M Black model B MDD 120V AC, 60Hz B MMA 220-240V AC, 50/60Hz SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
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DTR-50.1 SERVICE PROCEDURE-1 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 adjacent to the symbol. Ce symbole indique que le fusible utilise est e lent.
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DTR-50.1 SERVICE PROCEDURE-2 Replacing Power Amplifier Parts When a power amplifier of certain channel is broken and goes into Protect mode, the following parts in the channel must be replaced at the sametime, because these parts also get damage in most cases. Front L ch Front R ch Center ch...
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DTR-50.1 ADJUSTMENT PROCESURE ADJUSTMENT OF IDLING CURRENT 1) Setting R6040 to R6046 to minimum position before power ON. 2) Setting the voltage at P6080 to P6086 to 3mV by adjusting R6040 to R6046, under the condition of no input signal and no load, immediately after powr ON. L/C/R SL/SR/SBL/ABR Below 4mV...
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DTR-50.1 EXPLODED VIEWS-1 A337 x 3 pcs. A611 x 3 pcs. A185 A607 A189 A115 A177 x 2 pcs. A089 A179 A171 P8641 A603 U0030 A175 A191 x 8 pcs. A193 A613 P3101 x 6 pcs. A107 U005 U0047 x 2 pcs. A325 A605 U0031...
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DTR-50.1 PRINTED CIRCUIT BOARD VIEWS-12 U0047 SUPPORT PC BOARD-2 (BETC-0128-1A) U0041 STANDBY SWITCH PC BOARD (BASW-0122-1A) Component side view from soldering side Solderng side view from component side Component side view from soldering side Solderng side view from component side BCETC-0128 25140128 D7595...
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1/119 PAGE DTR-50.1 <Note> Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. NOTE : THE COMPONENTS IDENTIFIED BY THE MARK ! ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE ONLY WITH PART NUMBER SPECIFIED.
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13/119 PAGE C5531 C-CERA C CC725CH1H-221J1 342102214R1 PCB U001 C5532 C-CERA C CC725CH1H-221J1 342102214R1 PCB U001 C5533 C-CERA C CC725CH1H-221J1 342102214R1 PCB U001 C5534 C-CERA C CC725CH1H-221J1 342102214R1 PCB U001 C5535 UTSP C CE04W25V-47M(UTSP) 397554707T PCB U001 C5536 UTSP C CE04W25V-47M(UTSP) 397554707T PCB U001...
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14/119 PAGE C5591 C-CERA C CC725CH1H-101J1 342101014R1 PCB U001 C5592 MKT C B32529C0332J289 376493324T PCB U001 C5593 MKT C B32529C0332J289 376493324T PCB U001 C5594 C-CERA C CC725CH1H-101J1 342101014R1 PCB U001 C5595 C-CERA C CC725CH1H-101J1 342101014R1 PCB U001 C5596 UTSP C CE04W50V-10M(UTSP) 397581007T PCB U001...
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15/119 PAGE C5684 UTSP C CE04W25V-220M(UTSP) 397552217T PCB U001 C5685 UTSP C CE04W25V-220M(UTSP) 397552217T PCB U001 C5686 UTSP C CE04W25V-220M(UTSP) 397552217T PCB U001 C5687 UTSP C CE04W25V-220M(UTSP) 397552217T PCB U001 C5689 TF C ECQ-V50V-333J 374723334T PCB U001 C5690 TF C ECQ-V50V-333J 374723334T PCB U001...
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16/119 PAGE C6054 TF C ECQ-V50V-104J 374721044T PCB U001 C6055 TF C ECQ-V50V-104J 374721044T PCB U001 C6056 TF C ECQ-V50V-104J 374721044T PCB U001 C6701 UTSP C CE04W10V-220M(UTSP) 397532217T PCB U001 C6703 C-CERA C CK725F1H-104Z1 332151040R1 PCB U001 C6704 UTSP C CE04W50V-1M(UTSP) 397580107T PCB U001...
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17/119 PAGE R5508 C-CARBON R RN72K1J-331JE 435033314R1 PCB U001 R5509 C-CARBON R RN72K1J-331JE 435033314R1 PCB U001 R5510 C-CARBON R RN72K1J-331JE 435033314R1 PCB U001 R5511 C-CARBON R RN72K1J-331JE 435033314R1 PCB U001 R5512 C-CARBON R RN72K1J-331JE 435033314R1 PCB U001 R5513 C-CARBON R RN72K1J-331JE 435033314R1 PCB U001...
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18/119 PAGE R5558 C-CARBON R RN72K1J-224JE 435032244R1 PCB U001 R5559 C-CARBON R RN72K1J-224JE 435032244R1 PCB U001 R5560 C-CARBON R RN72K1J-224JE 435032244R1 PCB U001 R5561 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5562 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5563 C-CARBON R RN72K1J-224JE 435032244R1 PCB U001...
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19/119 PAGE R5603 C-CARBON R RN72K1J-224JE 435032244R1 PCB U001 R5604 C-CARBON R RN72K1J-224JE 435032244R1 PCB U001 R5605 C-CARBON R RN72K1J-224JE 435032244R1 PCB U001 R5606 C-CARBON R RN72K1J-224JE 435032244R1 PCB U001 R5607 C-CARBON R RN72K1J-224JE 435032244R1 PCB U001 R5608 C-CARBON R RN72K1J-224JE 435032244R1 PCB U001...
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20/119 PAGE R5648 C-CARBON R RN72K1J-274JE 435032744R1 PCB U001 R5649 C-CARBON R RN72K1J-223JE 435032234R1 PCB U001 R5650 C-CARBON R RN72K1J-223JE 435032234R1 PCB U001 R5651 C-CARBON R RN72K1J-122JE 435031224R1 PCB U001 R5652 C-CARBON R RN72K1J-122JE 435031224R1 PCB U001 R5653 C-CARBON R RN72K1J-101JE 435031014R1 PCB U001...
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21/119 PAGE R5733 C-CARBON R RN72K1J-224JE 435032244R1 PCB U001 R5734 C-CARBON R RN72K1J-391JE 435033914R1 PCB U001 R5735 C-CARBON R RN72K1J-391JE 435033914R1 PCB U001 R5738 C-CARBON R RN72K1J-224JE 435032244R1 PCB U001 R5739 C-CARBON R RN72K1J-224JE 435032244R1 PCB U001 R5740 C-CARBON R RN72K1J-391JE 435033914R1 PCB U001...
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22/119 PAGE R5821 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5822 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5823 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5824 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5825 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5826 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001...
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23/119 PAGE R5865 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5866 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5867 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5868 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5871 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5872 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001...
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24/119 PAGE R5922 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5923 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5924 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5925 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5928 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001 R5929 C-CARBON R RN72K1J-000JE 435030004R1 PCB U001...
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25/119 PAGE R6040 TRIM R N06HR2KBC 5210390T PCB U001 R6041 TRIM R N06HR2KBC 5210390T PCB U001 R6042 TRIM R N06HR2KBC 5210390T PCB U001 R6043 TRIM R N06HR2KBC 5210390T PCB U001 R6044 TRIM R N06HR2KBC 5210390T PCB U001 R6045 TRIM R N06HR2KBC 5210390T PCB U001...
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26/119 PAGE R6103 METAL PR MPR5W+5W 0R22 4000233 PCB U001 R6103 or METAL PR RGC55 0.22 ( 1) 4000132 PCB U001 R6104 METAL PR MPR5W+5W 0R22 4000233 PCB U001 R6104 or METAL PR RGC55 0.22 ( 1) 4000132 PCB U001 R6105 METAL PR MPR5W+5W 0R22...
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27/119 PAGE R6185 CARBON R R16J-47K 417344734T PCB U001 R6186 CARBON R R16J-47K 417344734T PCB U001 R6197 METAL O R RS1/2WBJ-33 443523304T PCB U001 R6250 NF CARBON R R25J-120 415471214T PCB U001 R6251 NF CARBON R R25J-120 415471214T PCB U001 R6252 NF CARBON R R25J-120...
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28/119 PAGE R6303 NF CARBON R R25J-2.2 415470224T PCB U001 R6304 NF CARBON R R25J-2.2 415470224T PCB U001 R6305 NF CARBON R R25J-2.2 415470224T PCB U001 R6306 NF CARBON R R25J-2.2 415470224T PCB U001 R6310 NF CARBON R R25J-10 415471004T PCB U001 R6311 NF CARBON R...