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...
TX-SR700/E SERVICE PROCEDURES 1. Replacing the fuses 5.Setting the voltage selector (Worldwide models only) This symbol located near the fuses indicates that the fuse used is fast operating type. For continued protection against Worldwide models are equipped with a voltage selector to conform fire hazard, replace with same type fuse.
TX-SR700/E EXPLODED VIEW-PARTS LIST 2 NOTE: THE COMPONENTS IDENTIFIED BY MARK ! ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE ONLY WITH PART NUMBER SPECIFIED. REF.NO. PART NO. DESCRIPTION REF.NO. PART NO. DESCRIPTION T901 2301587 NPT-1439D,Power transformer <D>...
Page 6
TX-SR700/E EXPLODED VIEW-PARTS LIST 1 REF.NO. PART NO. DESCRIPTION REF.NO. PART NO. DESCRIPTION CAUTION: Replacement for transistor of mark *, if necessary 27111271B Front bracket <B> 28141494 Cushion must be made from the same beta group (h ) as the original type.
TX-SR700/E SCHEMATIC DIAGRAM 4-1 Power amplifier section 1 N A A F - 7 4 8 3 T O N A D G ( P A R T - 4 P 4 0 4 C ( P 4 0 4 D ) R 5 1 6 3 [ 5 5 .
Page 31
TX-SR700/E SCHEMATIC DIAGRAM 4-2 Power amplifier section 2 N A A F - 7 4 8 3 T O N A A F - 7 4 8 3 T O N A D G - 7 4 6 0 T O N A D G - 7 4 6 0 ( S C H .
Page 32
TX-SR700/E SCHEMATIC DIAGRAM 5-1 Power amplifier section 3 N A A F - 7 4 7 4 [ 5 5 . 5 V ] Q 6 0 3 3 R 6 1 6 3 R 6 0 8 3 3 3 K...
Page 33
TX-SR700/E SCHEMATIC DIAGRAM 5-2 Power amplifier section4 [ 5 5 . 5 V ] Q 6 0 3 0 R 6 1 6 0 N A A F - 7 4 7 4 R 6 0 8 0 3 3 K...
Page 34
TX-SR700/E SCHEMATIC DIAGRAM 6 Output terminal section N A E T C - 7 4 0 6 P 6 8 0 3 L 6 8 5 0 S 1 . 3 C C 6 6 5 0 1 0 3 J...
TX-SR700/E Note: PRINTED CIRCUIT BOARD-PARTS LIST 1 <P>: Europpean model only <D>: 120V model only <O>: Other models except 120V model MAIN CIRCUIT PC BOARD (NADG-7460-1N/1O/1P/1Q) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Oscillators X181 3010345 or...
Page 43
TX-SR700/E PRINTED CIRCUIT BOARD-PARTS LIST 2 CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Capacitors Transistors C9511~C9514 394562217 220uF,35V,Elect. Q7503 2216175R2 or KTC3875-GR or C9515 394544727 4700uF,16V,Elect. 2213145R2 2SC2712-GR C9516 394674717 470uF,63V,Elect. Q7504 2216230R2 or KRA103S or C9520 394632217 220uF,10V,Elect.
Page 44
TX-SR700/E PRINTED CIRCUIT BOARD-PARTS LIST 3 NOTE: <O>: Other models except 120V model HEADPHONE TERMINAL PC BOARD (NAETC-7463-1N/1O) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Coils Coils L201 231237M022R2 NCH-1471 L7701 233454M022S NCH-1452 022M L2011~L2014 231237K022R2 NCH-1471...
Page 45
TX-SR700/E CAUTION: Replacement for transistor of mark *, if necessary PRINTED CIRCUIT BOARD-PARTS LIST 4 must be made from the same beta group (h ) as the original type. CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Relays...
Page 47
TX-SR700/E CAUTION: Replacement for transistor of mark *, if necessary PRINTED CIRCUIT BOARD-PARTS LIST 6 must be made from the same beta group (h ) as the original type. PRIMARY CIRCUIT PC BOARD (NAPS-7484-1N/1O/1P/1Q/1R/1U) DRIVER CIRCUIT PC BOARD (NAAF-7483-1N/1O) CIRCUIT NO.
TX-SR700/E MAIN MICROPROCESSOR Connection diagram TUNER PACK FRONT/CENTER/SURROUND SURROUND CH. BACK/SUBWOOFER CH. RL901 PREOUT PREOUT Q321 MUTE GATE SWITCH Q 9 2 1 P O W E R R E L A Y Q2203,4,2257,8 Q2208 Q9504 ZONE 2 OUTPUT GATE...
Page 49
TX-SR700/E MAIN MICROPROCESSOR Connection diagram M O N I T O R R 2 0 5 4 Q 2 5 1 P 2 0 1 S S 1 M O N I T O R S S 2 Q 2 0 1...
TX-SR700/E MAIN MICROPROCESSOR-TERMINAL DESCRIPTIONS Function I/O Act Description Function I/O Act Description OSDDA Serial data signal output pin to OSD IC. Address 15 output pin to Boot ROM. OSDCL O CLK Serial clock signal output pin to OSD IC. Address 16 output pin to Boot ROM.
Page 52
TX-SR700/E 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. Ceramic oscillator connection terminals for main system.
TX-SR700/E ADJUSTMENT AND CONFIRMATION PROCEDURES 1 Idling current adjustment Before Idling adjustment, turn the trimming resistors R6040 to R6045 to counter clockwise. Connect the DC voltmeter to sockets P6080 to P6085. After turn POWER to ON, adjust the trimming resistors R6040, R6041 and R6042 so that the reading of voltmeter becomes 2.5 mV.
TX-SR700/E 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. Adjust the attenuator or Volume so that the output level becomes 35V p-p.
TX-SR700/E PACKING PROCEDURES Bottom Except 120V model Accessary bag Note: <B>: Black model only <G>: Golden model only <S>: Silver model only <D>: U.S.A. model only <P>: European model only <T>: Asian model only <R>: Chinese model only <A>: Australian model only Put the label 81 between page 2 and page 3 of instruction manual E.
Need help?
Do you have a question about the TX-SR700/E and is the answer not in the manual?
Questions and answers