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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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HT-R500 3 7 63 1515 0 SERVICE PROCEDURES 1. Replacing the fuses This symbol located near the fuses indicates that the fuse used is fast operating type. For continued protection against fire hazard, replace with same type fuse. For fuse rating refer to the marking adjacent to the symbol.
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HT-R500 3 7 6 3 1 5 1 5 0 CAUTION: Replacement for transistor of mark *, if necessary EXPLODED VIEW must be made from the same beta group (h ) as the original type. PARTS LIST REF.NO. PART NO.
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HT-R500 3 7 63 1515 0 BLOCK DIAGRAM 1 To/From Main Microrocessor B D 3 8 1 1 K 1 F M / A M T U N E R P A C K V I D E O 3...
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HT-R500 3 7 63 1515 0 BLOCK DIAGRAM 2 M A S T E R V O L U M E U T G A I N P o w e r A m p l i f i e r...
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HT-R500 3 7 63 1515 0 SCHEMATIC DIAGRAM 1 Display section N A D I S - 7 4 0 3 Q 7 5 0 1 H N A - 1 6 M M 3 9 T C 7 5 0 5...
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HT-R500 3 7 63 1515 0 SCHEMATIC DIAGRAM 2-1 DSP section 7 8 L 0 7 Q 3 2 1 + 7 V R 3 0 0 C D R 3 3 0 R 6 4 0 2 Q 6 4 0 2...
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HT-R500 3 7 63 1515 0 SCHEMATIC DIAGRAM 2-2 + 2 2 V DSP section S E C 1 - 1 G N D S E C 1 - 2 T O N A D I S - 7 4 0 3 S E C 3 - 1 <...
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HT-R500 3 7 63 1515 0 SCHEMATIC DIAGRAM 3 Video section N C E T C - 7 4 0 7 N A V D - 7 4 2 2 C 2 2 7 2 2 3 Z + 1 2 V...
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HT-R500 3 7 63 1515 0 SCHEMATIC DIAGRAM 4-1 Power amplifier section 1 N A A F - 7 4 0 9 P 4 0 6 A R 5 1 6 3 6 3 V 1 2 0 ( 1 / 4 W )
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HT-R500 3 7 63 1515 0 SCHEMATIC DIAGRAM 4-2 Power amplifier section 2 T O N A D G - 7 4 0 1 N A A F - 7 4 0 9 ( S C H . 2 - 2 )
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HT-R500 3 7 63 1515 0 SCHEMATIC DIAGRAM 5-1 Power amplifier section 3 N A A F - 7 4 1 7 [ 6 3 . 1 V ] Q 6 0 3 3 [ 1 . 1 V ]...
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HT-R500 3 7 63 1515 0 SCHEMATIC DIAGRAM 5-2 Power amplifier section 4 N A A F - 7 4 1 7 [ 6 3 . 1 V ] Q 6 0 3 0 [ 1 . 1 V ]...
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HT-R500 3 7 63 1515 0 SCHEMATIC DIAGRAM 6 Power supply section N O T E N A E T C - 7 4 1 0 A R E C R I T I C A L F O R S A F E T Y...
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HT-R500 3 7 63 1515 0 SCHEMATIC DIAGRAM 7 Speaker terminal section N A E T C - 7 4 1 2 C 6 6 0 0 1 0 3 J P 6 8 0 0 F R O N T...
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HT-R500 3 7 63 1515 0 PRINTED CIRCUIT BOARD-PARTS LIST 2 CIRCUIT NO. PART NO. DESCRIPTION POWER AMPLIFIER DRIVER PC BOARD (NAAF-7409-2A) Transistors CIRCUIT NO. PART NO. DESCRIPTION Q7504 2216230R2 or KRA103S or Transistors 2214540R2 RN2403 Q5000~Q5004 2215896, * KTC3200-BL,...
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HT-R500 3 7 63 1515 0 NOTE: THE COMPONENTS IDENTIFIED BY MARK ! PRINTED CIRCUIT BOARD-PARTS LIST 3 ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE ONLY WITH PART NUMBER SPECIFIED. SECONDARY PC BOARD (NAETC-7411-2A) CIRCUIT NO.
HT-R500 3 7 63 1515 0 TERMINAL DESCRIPTION MAIN MICROPROCESSOR No. Terminal I/O Description PROTECT Protection circuit detection input terminal VOLH Power amplifier voltage detection terminal. BAND Region setting input terminal. 11 232TXD Not used. 12 232RXD Not used.
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HT-R500 3 7 6 3 1 5 1 5 0 TERMINAL DESCRIPTION SUB MICROPROCESSOR Pin No. Symbol I/O Description Pin No. Symbol I/O Description Power supply terminal. Connect to 5V. Segment output terminal of P22. Ground terminal. Segment output terminal of P21.
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HT-R500 3 7 63 1515 0 ADJUSTMENT AND CONFIRMATION PROCEDURES 1 Idling current adjustment Before Idling adjustment, turn the trimming resistors R6040,R6041,R6042,R6043 and R6044 to counter clockwise. Connect the DC voltmeter to sockets P6080,P6081,P6082,P6083 and P6084. After turn POWER to ON, adjust the trimming resistors R6040 and R6041 so that the reading of voltmeter becomes 2.5 mV.
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HT-R500 3 7 63 1515 0 ADJUSTMENT AND CONFIRMATION PROCEDURES 2 3. Confirmation of Current detection circuit Set the unit to "TEST-1-00". Connect the differentiating circuit and apply the 200Hz square signal to MULTI CHANNEL INPUT terminal of each channel.
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HT-R500 3 7 63 1515 0 PACKING PROCEDURES Bottom Accessary bag L 13942296513 Put the label 81 between page 2 and page 3 of instruction manual E. REF.NO. PART NO. DESCRIPTION 29092044 Speaker Cable 29100034-1A 850*650,Poly bag 29110149 Tape, cellophane...