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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...
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A-9355 SCHEMATIC DIAGRAMS-4 NASW-9290 POWER SUPPLY SECTION POWER NAPS-9287 POWER SUPPLY PC BOARD MAIN POWER TRANS P901A P901B S901 T911 F901 MPP, MGT, MGR : T1.25AL/250V TO P9002 MDT : 2.5A/125V C911 P904A P904B 103M/250V P902A F901 L902 POWER SWITCH...
A-9355 PACKING PROCEDURE A951 A961 A752 A952 A964 A810 A953 A965 A506 A512 Right side A751 marking A506 Front side A500 marking Front side A503 (L & R) Left side marking A701 A509 A801 Front side marking Front side A509...
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A-9355 PRINTED CIRCUIT BOARD VIEWS-2 LED PC BOARD (NADIS-9252) Component side 25139252 JL813B D805 DIS-9252 SELECTOR PC BOARD (NASW-9253) Component side D835 NCSW-9253 D834 D836 25139253 S802 D833 D837 J803 J802 D838 D831 D832 J801 U801 C815 S806 S805 Soldering side...
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A-9355 PRINTED CIRCUIT BOARD VIEWS-3 VOLUME PC BOARD (NASW-9258) Component side NCSW-9258 25139258 Soldering side HEADPHONE JACK PC BOARD (NATRM-9260) Component side NCTRM-9260 25139260 Soldering side...
A-9355 IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS-1 Q201 : R2S15211FP (8 ch Electronic Volume and 11 Input Selector and Tone Control)-1/3 SYSTEM BLOCK DIAGRAM Multi Multi Rch Tone Lch Tone CLOCK DATA MCU I/F Tone Bass & Volume Volume Treble...
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A-9355 IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS-2 Q201 : R2S15211FP (8 ch Electronic Volume and 11 Input Selector and Tone Control)-2/3 BLOCK DIAGRAM AND PIN CONFIGURATION 35 34 31 30 37 36 AVCC DGND AVCC DATA TREL CLOCK BASSL2 AVEE...
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A-9355 IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS-3 Q201 : R2S15211FP (8 ch Electronic Volume and 11 Input Selector and Tone Control)-3/3 TERMINAL DESCRIPTION PIN No. Name Function 19,17, FROUT,FLOUT, 14,12, 6-OUT,5-OUT, Output pin of FL/FR/C/SW/SL/SR/SBL/SBR channel 4-OUT, 3-OUT, 9,7, 2-OUT,1-OUT...
A-9355 IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS-4 Q5017, Q5018 : IRS20954S (Digital Audio Driver) BLOCK DIAGRAM FLOATING INPUT DETECT DETECT HIGH SIDE INPUT LOGIC 10.4V LEVEL SHIFT FLOATING HIGH SIDE LEVEL LEVEL SHIFT SHIFT 5V REG CHARGE/ DETECT DISCHARGE DEAD TIME...
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A-9355 MICROPROCESSOR TERMINAL DESCRIPTIONS-1 Q801 : MPD78F0532GK PIN No. PIN NAME ACT. DESCRIPTION TAPE LED TAPE LED control voltage output. DIRECT LED DIRECT LED control voltage output. LOUDNESS LED LOUDNESS LED control voltage output. Not used. ACPOWER Main power control voltage output.
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A-9355 MICROPROCESSOR TERMINAL DESCRIPTIONS-2 Q801 : MPD78F0532GK PIN No. PIN NAME ACT. DESCRIPTION MODE For model setting. VOLUP Volume up control voltage output. VOLDN Volume down control voltage output. FLSI For flash writer (SI). FLSO For flash writer (SO). FLSCK For flash writer (SCK).
A-9355 SERVICE PROCEDURE 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.
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A-9355 OPERATION CHECK-1 SPEAKER PROTECT-1 (CURRENT DETECTION) [When] Exchange parts on Power amplifier PC board (NACLD-9283) and PC board ass’y. <Note> 1. Do not check two or more channels at the same time. 2. Do not connect dummy load to speaker terminal longer than 2 seconds.
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A-9355 OPERATION CHECK-2 SPEAKER PROTECT-2 (DC VOLTAGE DETECTION) [When] Exchange parts on Power amplifier PC board (NACLD-9283) and PC board ass’y. <Note> 1. Try again if protect did not work at the first time. 2. Do not connect load or short speaker terminals.
A-9355 OPERATION CHECK-3 PONPING DETECTION/ THERMAL SENSOR/ CARRIER WAVEFORM [When] Exchange parts on Power amplifier PC board (NACLD-9283) and PC board ass’y. [Procedure] 1. Connect the AC power cord to a wall outlet and turn on the unit. 2. Set the unit as follows.
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A-9355 ADJUSTMENT PROCEDURE DC OFFSET ADJUSTMENT [When] 1. Exchange the parts on the POWER AMPLIFIER PC board (NACLD-9283). 2. Exchange the POWER AMPLIFIER PC board ass'y (NACLD-9283). 3. Exchange the power trans (T911). <Note> No signal and No load. [Procedure] 1.
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1/37 PAGE A-9355 <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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16/37 PAGE C111 TF C ECQ-B50V-562J 374725624T PCB2 C112 TF C ECQ-B50V-562J 374725624T PCB2 C113 TF C ECQ-B50V-222J 374722224T PCB2 C114 TF C ECQ-B50V-222J 374722224T PCB2 C115 UTSP C CE04W50V-22M(UTSP) 397582207T PCB2 C116 UTSP C CE04W50V-22M(UTSP) 397582207T PCB2 C117 UTSP C CE04W50V-22M(UTSP) 397582207T PCB2...
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17/37 PAGE C301 UTSP C CE04W50V 47M(UTSP) 397584707T PCB2 C302 UTSP C CE04W50V 47M(UTSP) 397584707T PCB2 C303 UTSP C CE04W50V 47M(UTSP) 397584707T PCB2 C304 UTSP C CE04W50V 47M(UTSP) 397584707T PCB2 C305 TF C ECQ-V50V-333J 374723334T PCB2 C306 TF C ECQ-V50V-333J 374723334T PCB2 C307...
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18/37 PAGE C413 TF C ECQ-V50V-474J 374724744T PCB2 C414 TF C ECQ-V50V-473J 374724734T PCB2 C415 TF C ECQ-V50V-473J 374724734T PCB2 C416 TF C ECQ-B50V-223J 374722234T PCB2 C417 TF C ECQ-B50V-223J 374722234T PCB2 C418 UTSP C CE04W50V 47M(UTSP) 397584707T PCB2 C419 UTSP C CE04W50V 47M(UTSP) 397584707T...
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19/37 PAGE C959 VX C CE04W35V-2200M(VX_BLK) 397362227S PCB2 C961 VX C CE04W35V-470M(VX_BLK) 397364717S PCB2 C962 VX C CE04W35V-470M(VX_BLK) 397364717S PCB2 C963 UTSP C CE04W50V-22M(UTSP) 397582207T PCB2 C964 UTSP C CE04W50V-22M(UTSP) 397582207T PCB2 C965 UTSP C CE04W50V-2.2M(UTSP) 397580227T PCB2 C966 UTSP C CE04W50V-2.2M(UTSP) 397580227T PCB2...
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20/37 PAGE R114 CARBON R R16J-220 417342214T PCB2 R115 CARBON R R16J-220 417342214T PCB2 R116 CARBON R R16J-220 417342214T PCB2 R117 CARBON R R16J-22K 417342234T PCB2 R118 CARBON R R16J-22K 417342234T PCB2 R119 CARBON R R16J-6.8K 417346824T PCB2 R120 CARBON R R16J-6.8K 417346824T PCB2...
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21/37 PAGE R157 CARBON R R16J-470K 417344744T PCB2 R158 CARBON R R16J-470K 417344744T PCB2 R201 C-CARBON R RN72K1J-331JE 435033314R1 PCB2 R202 C-CARBON R RN72K1J-331JE 435033314R1 PCB2 R203 C-CARBON R RN72K1J-331JE 435033314R1 PCB2 R204 C-CARBON R RN72K1J-331JE 435033314R1 PCB2 R205 C-CARBON R RN72K1J-222JE 435032224R1 PCB2...
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22/37 PAGE R314 CARBON R R16J-10K 417341034T PCB2 R315 CARBON R R16J-10K 417341034T PCB2 R316 CARBON R R16J-10K 417341034T PCB2 R317 CARBON R R16J-3.9K 417343924T PCB2 R318 CARBON R R16J-3.9K 417343924T PCB2 R319 VARI R N14RGLC50KB25Z 5132535 PCB2 R320 VARI R N14RGLC50KB25Z 5132535 PCB2...
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23/37 PAGE R374 C-CARBON R RN72K1J-103JE 435031034R1 PCB2 R375 C-CARBON R RN72K1J-103JE 435031034R1 PCB2 R376 C-CARBON R RN72K1J-103JE 435031034R1 PCB2 R377 METAL O R RS1/2WBJ-22 443522204T PCB2 R378 METAL O R RS1/2WBJ-22 443522204T PCB2 R381 C-CARBON R RN72K1J-224JE 435032244R1 PCB2 R421 C-CARBON R RN72K1J-222JE...
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24/37 PAGE R967 NF CARBON R R25J-22 415472204T PCB2 R968 NF CARBON R R25J-22 415472204T PCB2 R969 CARBON R R16J-12K 417341234T PCB2 R970 CARBON R R16J-12K 417341234T PCB2 R971 C-CARBON R RN72K1J-122JE 435031224R1 PCB2 R972 C-CARBON R RN72K1J-122JE 435031224R1 PCB2 R973 METAL O R RS1/2WBJ-22...
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25/37 PAGE JL901B WIRE TRAP NPLG-4P587 25055625 PCB2 P201 PIN JACK NPJ-4PDWWRR624 25045845 PCB2 P201 or PIN JACK NPJ-4PDBL162 25045303 PCB2 P202 PIN JACK NPJ-4PDWWRR624 25045845 PCB2 P202 or PIN JACK NPJ-4PDBL162 25045303 PCB2 P203 PIN JACK NPJ-4PDWWRR624 25045845 PCB2 P203 or PIN JACK NPJ-4PDBL162...