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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...
HT-R8230 SERVICE PROCEDURES 1. Replacing the fuses 5. Memory Preservation This unit does not require memory preservation batteries. This symbol located near the fuse indicates that the A built-in memory power backup system preserves the contents of fuse used is show operating type, For continued protection against memory during power failures and even when the power cord is unplugged.
HT-R8230 BLOCK DIAGRAM MAIN MICROPROCESSOR TUNER UNIT INPUT GAIN 0/6dB INPUT GAIN TAPE OUT 0/6dB INPUT GAIN TAPE IN 0/6dB Q301 BD3811K SELECTOR/TONE CONTROL VIDEO 3 INPUT GAIN /VOLUME 0/6dB VIDEO 2 IN INPUT GAIN 0/6dB VIDEO 1 OUT INPUT GAIN...
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HT-R8230 POWER MASTER VOLUME 0,,-103dB AMPLIFIER BASS OUTPUT GAIN PHONES BASS/TREBLE BOOST MUTING +27dB 0-18dB Q307 RL6600 OUTPUT GAIN BASS/TREBLE FRONT MUTING SPEAKERS-A +27dB 0-18dB Q308 CENTER SPEAKER OUTPUT GAIN RL6604 +27dB 0-18dB SURROUND SPEAKERS OUTPUT GAIN FRONT 0-18dB SPEAKERS-B...
HT-R8230 SCHEMATIC DIAGRAM-5 SPEAKER TERMINAL & POWER SUPPLY SECTION NAETC-7870 C6600 103J D6600 SPEAKER TERMINAL FRONT SPEAKERS-B RL6600 P6800 PC BOARD LSSP RSSP RL6601 FRONT SPEAKERS-A D6601 C6601 103Z RL6603 CENTER SPEAKER P6802 RL6604 D6604 C6604 103J SURROUND SPEAKERS BRLD...
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HT-R8230 NAETC-7868 FLAC1 REGULATOR PC BOARD FLAC2 MPUGND MPUGND AGND Q6931 NJM78M56FA +5.6V C6933 10/16 +24V S3GND S3GND D6933 C6932 103Z <Notes> NC=No mount of parts. C6931 1000/25 R6935 NOTE +5.6V D6932 (2W) . THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY REPLACE ONLY WITH PART NUMBER SPECIFIED.
HT-R8230 PC BOARD CONNECTION DIAGRAM AC IN NAETC-7870 SPEAKER TERMINAL PC BOARD FM ANT AM ANT NAVD-7867 VIDEO&OPT TERMINAL PC BOARD P6801 P6800 RL6600 P202 RL6603 P201 P281 TUNER UNIT JL6804B JL6805B JL6803B NAETC-8256 THERMAL SENSOR PC BOARD P206B JL6402B...
HT-R8230 IC BLOCK DIAGRAM AND TERMINAL DESCRIPTIONS-3 Q701:CS493264(DSP IC)-1 BLOCK DIAGRAM SCDIO, DATA7:0, R/W, SCDOUT, EXTMEM, ABOOT, EMAD7:0, EMOE, EMWR, PSEL, RESET SCCLK SCDIN INTREQ GPIO8 GPIO7:0 GPIO11 GPIO10 GPIO9 CMPDAT, SDATAN2 PARALLEL or SERIAL HOST INTERFACE COMPRESSED CMPCLK, DATA INPUT...
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HT-R8230 IC BLOCK DIAGRAM AND TERMINAL DESCRIPTIONS-4 Q701:CS493264(DSP IC)-2 TERMINAL DESCRIPTION Symbol Description No. Symbol Description Digital positive suppy Reserved. DGMD1 Digital suppy ground AUDATA3,XMT958 SPDIF transmitter output. Digital audio output. AUDATA2 Digital audio output 2. Host write strobe or host data strobe or AUDATA1 Digital audio output 1.
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HT-R8230 IC BLOCK DIAGRAM AND TERMINAL DESCRIPTIONS-5 Q801: AK4586 (24-Bit 96kHz 6-channel CODEC with DIR)-1 BLOCK DIAGRAM X'tal Oscillator uP I/F Audio Clock MCKO Generator Clock MCLK Recovery DAIF LOUT1 DATT Decoder Input Selector DATT ROUT1 SDOUT LOUT2 DATT DATT...
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HT-R8230 IC BLOCK DIAGRAM AND TERMINAL DESCRIPTIONS-6 Q801: AK4586 (24-Bit 96kHz 6-channel CODEC with DIR)-2 TERMINAL DESCRIPTION Pin Name Function Pin Name Function ROUT1 DAC1 Rch Analog Output Pin X'tal Output Pin X'tal Input Pin Lch Analog Input Pin EXTCLK...
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HT-R8230 MICROPROCESSOR TERMINAL DESCRIPTIONS-1 Q7008:MPD784225GC-249-8BT(MAIN MICROPROCESSOR) Pin name Description Pin name Description Broadcast detection input terminal more Current detection and DC voltage detection PROTECT than a muting level. input terminal. ~STEREO FM stereo broadcast detection input terminal. Thermal detection and power amplifier VOLH output level detection input terminal.
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HT-R8230 MICROPROCESSOR TERMINAL DESCRIPTIONS-2 Q7502:MPD780232GC-030-8BT(SUB MICROPRCESSOR) Pin name Description Pin name Description Segment output terminal of P22. VDD1 Power supply terminal. Connect to 5V. VSS1 Ground terminal. Segment output terminal of P21. X'tal input terminal. Segment output terminal of P20.
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HT-R8230 ADJUSTMENT PROCEDURES IDLING CURRENT ADJUSTMENT [Note] No load and No signal Refer to Fig-1 about test points and adjustment points. 1. Before Idling adjustment, turn the trimming resistors R6040, R6041, R6042, R6043 and R6044 to counter clockwise. 2. Connect the DC voltmeter to test point P6080,P6081, P6082, P6083 and P6084.
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HT-R8230 OPERATION CHECK-1 DC VOLTAGE DETECTION PROTECTORS [NOTE1] Limit time to apply voltage is 0.5 to 1.0 seconds each channel. When protection operation does not occur at once, try several times. [NOTE2] Don't connect speakers or any load. Don't short speaker terminals.
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HT-R8230 OPERATION CHECK-2 OUTPUT LEVEL & THERMAL DETECTION Regarding the power supply system of this unit. <Function> 1. High-voltage mode Usually, the power supply supplies high voltage to the power amplifier circuit when the relay(RL6901) is turned on. 2. Low-voltage mode When as follows, a power supply changes to the state of supplying low voltage when the relay (RL6901) in turned off.
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HT-R8230 OPERATION CHECK-3 OUTPUT LEVEL & THERMAL DETECTION <Check by test mode> The following is the procedure of checking detection operation of a microprocessor in false, by using test mode. Output level detection 1. Set the unit to test mode " Test-3-2 "...
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HT-R8230 OPERATION CHECK-4 DSP DEBUG MODE Regarding the DSP debug mode TIn this test mode, the check with normal communication of a microprocessor and the data of DSP and DIR is possible. This information is a help to find the cause of failure.
1/30 PAGE HT-R8230 EXPLODED VIEW PARTS LIST NOTE : THE COMPONENTS IDENTIFIED BY THE MARK ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE ONLY WITH PART NUMBER SPECIFIED. REF. NO. PART NAME DESCRIPTION Q'TY PART NO. REMARKS A002...
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5/30 PAGE D7702 or ZENER D HZU6.2B ( 1) 224660624R2 D9502 DIODE RL1N4003 22380260 D9502 or DIODE GP104003E ( 1) 22380035 D9502 or DIODE 1SR139-100 ( 1) 22380032 D9503 DIODE RL1N4003 22380260 D9503 or DIODE GP104003E ( 1) 22380035 D9503 or DIODE 1SR139-100 ( 1) 22380032...
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6/30 PAGE X701 CERA LOCK CSTCV12.2MTJ0C4 3010324R2 C101 VR C CE04W50V-3.3M(VR) 394680337 C101 or ELECT C CE04W50V3.3M(SC) ( 1) 394780337 C103 VR C CE04W50V-3.3M(VR) 394680337 C103 or ELECT C CE04W50V3.3M(SC) ( 1) 394780337 C104 C-CERA C CC725CH1H-101J1 342101014R1 C106 C-CERA C CC725CH1H-101J1 342101014R1 C300...
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7/30 PAGE C359 VR C CE04W16V-10M(VR) 394641007 C359 or ELECT C CE04W16V10M(SC) ( 1) 394741007 C360 C-CERA C CK732B1C-474K 337394745R1 C362 VR C CE04W16V-10M(VR) 394641007 C362 or ELECT C CE04W16V10M(SC) ( 1) 394741007 C363 VX C CE04W16V-10M(VX) 393341007 C364 VX C CE04W16V-10M(VX) 393341007 C365...
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8/30 PAGE C845 C-CERA C CC725CH1E-821J1 342118214R1 C848 C-CERA C CC732CH1H-152J 347341524R1 C849 C-FILM C ECHU16V-153J 373041534R2 C850 C-CERA C CC732CH1H-152J 347341524R1 C851 C-CERA C CC732CH1H-152J 347341524R1 C852 TF C ECQ-B50V-152J 374721524 C853 TF C ECQ-B50V-152J 374721524 C854 VX C CE04W16V-10M(VX) 393341007 C855...
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9/30 PAGE C9507 VR C CE04W35V-220M(VR) 394662217 C9507 or ELECT C CE04W35V220M(SC) ( 1) 394762217 C9508 VR C CE04W16V-4700M(VR) 394644727S C9508 or ELECT C CE04W16V4700M(SC) ( 1) 394744727S C9510 VR C CE04W63V-220M(VR) 394672217 C9511 C-CERA C CK725F1H-223Z1 332152230R1 C9512 C-CERA C CK725F1H-223Z1 332152230R1 R102...
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10/30 PAGE R381 C-CARBON R RN72K1J-223JE 435032234R1 R382 C-CARBON R RN72K1J-223JE 435032234R1 R383 C-CARBON R RN72K1J-103JE 435031034R1 R384 C-CARBON R RN72K1J-224JE 435032244R1 R385 C-CARBON R RN72K1J-101JE 435031014R1 R386 C-CARBON R RN72K1J-272JE 435032724R1 R387 C-CARBON R RN72K1J-272JE 435032724R1 R388 C-CARBON R RN72K1J-101JE 435031014R1 R701...
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11/30 PAGE R820 C-CARBON R RN72K1J-103JE 435031034R1 R821 C-CARBON R RN72K1J-471JE 435034714R1 R832 C-CARBON R RN72K1J-104JE 435031044R1 R833 C-CARBON R RN72K1J-104JE 435031044R1 R834 C-CARBON R RN72K1J-104JE 435031044R1 R835 C-CARBON R RN72K1J-104JE 435031044R1 R836 C-CARBON R RN72K1J-104JE 435031044R1 R837 C-CARBON R RN72K1J-104JE 435031044R1 R840...
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12/30 PAGE R7042 C-CARBON R RN72K1J-221JE 435032214R1 R7043 C-CARBON R RN72K1J-221JE 435032214R1 R7044 C-CARBON R RN72K1J-102JE 435031024R1 R7045 C-CARBON R RN72K1J-102JE 435031024R1 R7046 C-CARBON R RN72K1J-102JE 435031024R1 R7047 C-CARBON R RN72K1J-221JE 435032214R1 R7048 C-CARBON R RN72K1J-221JE 435032214R1 R7049 C-CARBON R RN72K1J-102JE 435031024R1 R7050...
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13/30 PAGE P101 or SOCKET NSCT-15P1811 ( 1) 25052024 P301 PIN JACK NPJ-6PDRW386 25045571 P301 or JACK NPJ-6PDBL159 ( 1) 25045300 P301 or PIN JACK NPJ-6PDWWWRRR561 ( 1) 25045779 P302 JACK NPJ-2PDBL185 25045333 P302 or PIN JACK NPJ-2PDWR558 ( 1) 25045776 P304 PIN JACK NPJ-6PDRW386...
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14/30 PAGE C7503 C-CERA C CK725F1E-104Z1 332161040R1 C7504 C-CERA C CK725F1H-473Z1 332154730R1 C7505 C-CERA C CK725F1H-473Z1 332154730R1 C7506 C-CERA C CK725F1E-104Z1 332161040R1 C7507 C-CERA C CK725F1E-104Z1 332161040R1 C7508 C-CERA C CC725CH1E-102J1 342111024R1 C7509 C-CERA C CC725CH1E-102J1 342111024R1 C7510 C-CERA C CC725CH1E-102J1 342111024R1 C7511...
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15/30 PAGE R7614 C-CARBON R RN72K1J-821JE 435038214R1 R7615 C-CARBON R RN72K1J-122JE 435031224R1 R7621 C-CARBON R RN72K1J-331JE 435033314R1 R7622 C-CARBON R RN72K1J-471JE 435034714R1 R7623 C-CARBON R RN72K1J-561JE 435035614R1 R7624 C-CARBON R RN72K1J-821JE 435038214R1 R7625 C-CARBON R RN72K1J-122JE 435031224R1 R7626 C-CARBON R RN72K1J-222JE 435032224R1 R7631...
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17/30 PAGE Q6020 or 2SC1740S-S ( 1) 2213285 Q6021 2SC1740S-R 2213284 Q6021 or 2SC1740S-S ( 1) 2213285 Q6022 2SC1740S-R 2213284 Q6022 or 2SC1740S-S ( 1) 2213285 Q6023 2SC1740S-R 2213284 Q6023 or 2SC1740S-S ( 1) 2213285 Q6024 2SC1740S-R 2213284 Q6024 or 2SC1740S-S ( 1) 2213285 Q6030...
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18/30 PAGE Q6702 or 2SC1845-F ( 1) 2211732 Q6703 KTA1268-GR 2215885 Q6703 or KTA1268-BL ( 1) 2215886 Q6703 or 2SA992-E ( 1) 2211793 Q6703 or 2SA992-F ( 1) 2211792 Q6901 KTC3199-GR 2215864 Q6901 or 2SC1740S-R ( 1) 2213284 Q6901 or 2SC1740S-S ( 1) 2213285 Q6901 or...
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19/30 PAGE D6307 DIODE 1SS133 223163 D6307 or DIODE 1SS270A ( 1) 223205 D6307 or DIODE WG713A ( 1) 223222 D6307 or DIODE 1N4148M ( 1) 223273 D6701 DIODE 1SS133 223163 D6701 or DIODE 1SS270A ( 1) 223205 D6701 or DIODE WG713A ( 1) 223222...
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20/30 PAGE C6906 MY C MY92-50V-104J 371121044 C6907 MY C MY92-50V-104J 371121044 R923 CARBON R R16J-1K 417341024 R924 METAL O R RS1/2WBJ-82 443528204 R926 CARBON R R16J-4.7K 417344724 R6000 CARBON R R16J-5.6K 417345624 R6001 CARBON R R16J-5.6K 417345624 R6002 CARBON R R16J-5.6K 417345624 R6003...
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21/30 PAGE R6103 or OTHER R RGC22-0.22 OHMK ( 1) 4000131 R6103 or METAL PR MPC708-2WK-0.22 ( 1) 4500027 R6104 CEMENT R RSS2WK-0.22 4800071 R6104 or OTHER R RGC22-0.22 OHMK ( 1) 4000131 R6104 or METAL PR MPC708-2WK-0.22 ( 1) 4500027 R6140 CARBON R R16J-22K...
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22/30 PAGE R6851 METAL O R RS1/2WBJ-390 443523914 R6902 CARBON R R16J-1K 417341024 RL6901 RELAY SW NRL-1P5A-DC12-102 25065526 RL6901 or RELAY NRL-1P5A-DC12-127 ( 1) 25065561 RL6901 or RELAY NRL-1P5A-DC12-096 ( 1) 25065515 RL6901 or RELAY NRL-1P10A-DC12-093 ( 1) 25065508 RL6902 RELAY SW NRL-1P5A-DC12-102 25065526...
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23/30 PAGE P6907 TRM(SCREW) NEGITANSI M3 25065425 P6931 PLUG NPLG-15P667 25055711 P801B SOCKET NSCT-14P1029 25051239 P901A PLUG NPLG-2P631 25055675 P902 SOCKET NSCT-2P1358 25051571 P902 or AC OUTLET AC-181-UL-11V ( 1) 25053030 P911 CRIMP AS CRIMP AS 2069943259UL P912 CRIMP AS CRIMP AS 2069943224UL P931...
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24/30 PAGE Q5010 or 2SC1775A-F ( 1) 2210756 Q5010 or 2SC1845-E ( 1) 2211733 Q5011 KTC3200-BL 2215896 Q5011 or 2SC1775A-E ( 1) 2210755 Q5011 or 2SC1775A-F ( 1) 2210756 Q5011 or 2SC1845-E ( 1) 2211733 Q5012 KTC3200-BL 2215896 Q5012 or 2SC1775A-E ( 1) 2210755 Q5012 or...
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25/30 PAGE Q5044 or KTC3206-O ( 1) 2215853 Q5044 or 2SC2229-Y ( 1) 2211634 Q5044 or 2SC2229-O ( 1) 2211633 Q5050 KTC3200-BL 2215896 Q5050 or KTC3200-GR ( 1) 2215895 Q5050 or 2SC1775A-E ( 1) 2210755 Q5050 or 2SC1775A-F ( 1) 2210756 Q5050 or 2SC1845-E ( 1) 2211733...
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