NAD T753 Service Manual Download Page 7

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DISASSEMBLY INSTRUCTIONS

Remove machine screws M4.0 x 8.0 (1 to 6) from the side panels.

Remove tapping screw 3.0 x 8.0 (7 to 10) from the back panel.

Refer to Figure No. 1.

Pull both sides of the TOP COVER slightly outwards 11 and tilt approx. 35

and then

remove in the direction as indicated by the arrow 12. Refer to Figure No. 2.

Figure No. 1

Figure No. 2

Summary of Contents for T753

Page 1: ...NAD SERVICE MANUAL T 753 T 753 Surround Sound Receiver Surround Sound Receiver DRAFT DATE 9 MAR 2006 PHASE II ...

Page 2: ...2 SAFETY INFORMATION AH VERSION C VERSION ...

Page 3: ...check out Only U S A model Before returning the product to the customer make leakage current or resistance measurements to determine that exposed parts are acceptably insulated from supply circuit CONTENTS DESCRIPTION PAGE SPECIFICATIONS 4 5 REAR PANEL FRONT PANEL VIEW 6 DISASSEMBLY INSTRUCTIONS 7 WIRING DIAGRAM 8 10 BLOCK DIAGRAM 11 SPECIAL FUNCTION 12 DETAILS WAVEFORMS ON SYSTEM TEST DEBUGGING 1...

Page 4: ...2 dB Frequency Resporse at Dolby config 2 SL Track 46 200 20 kHz 0 8 dB SR Track 47 200 20 kHz 0 8 dB C Track 44 200 20 kHz 0 8 dB Harmonic Distortion 1 W Audio LPF Dolby Congfig 1 FL Track 65 997 Hz 0 08 FR Track 67 997 Hz 0 08 SL Track 68 997 Hz 0 08 SR Track 69 997 Hz 0 08 C Track 66 997 Hz 0 08 S N Ratio 31 for O P 1 W Track 35 CCIR ARM 65 dB Audio LPF 70 dB A wtd 70 dB Channel Separation 1 W ...

Page 5: ... AH Input level is expressed as the reading in open circuit of 75 ohm source impedance signal generator Usable sensitivity 98 MHz 15 dBµ µ µ µ µ 15 dBµ µ µ µ µv S N Ratio 60 dB IHF wtd Mono 63 dB 63 dB Stereo 63 dB 63 dB Frequency Response 20 Hz 15 kHz 60 dBµ µ µ µ µ 0 1 5 dB 0 1 5 dB Channel Separation 60 dBµ µ µ µ µ 100 Hz 30 dB 30 dB 1 k 38 dB 38 dB 10 kHz 30 dB 30 dB Alternate Channel Selectiv...

Page 6: ...IGITALAUDIO OUTPUT 9 POWER SWITCH 10 SWITCHED AC OUTLETS 11 AC POWER INLET 12 SPEAKERS A B 13 DVD SAT VCR VIDEO 4 VIDEO 5 14 MAIN IN AUDIO PRE OUTS SUBWOOFER OUT 15 TAPE INPUT OUTPUT 16 MS OUT MULTISOURCE OUT 17 7 1 CH INPUTS 1 STANDBY SWITCH 2 STANDBY LED 3 AM FM 4 FM MUTE MODE 5 DISPLAY 6 MEMORY 7 PRESET DOWN UP 8 SEARCH DOWN UP 9 VFL DISPLAY 10 VOLUME SETUP 11 SOURCE DOWN UP 12 SURROUND MODE 13...

Page 7: ...he side panels Remove tapping screw 3 0 x 8 0 7 to 10 from the back panel Refer to Figure No 1 2 Pull both sides of the TOP COVER slightly outwards 11 and tilt approx 35 and then remove in the direction as indicated by the arrow 12 Refer to Figure No 2 Figure No 1 Figure No 2 ...

Page 8: ...3A1 J511B J704B J3103A S VIDEO BOARD AMP 2 BOARD SURROUND AMP AMP 1 BOARD FRONT CENTER J612B J502A J503A M506 J511A J581A J781B J503B J611B J801A J901A J753A J754B J751B J504A J501A J757 J756 J761_N J761_L J760 J758 J759 J203B J803A J3103B J6102B J6103B J6102A J6103A J201 J204A J6106A J6105A J350B J6106A J6105A J8101A J784A J803B J504B1 J504B3 J582A1 J582A3 J582A5 J501B1 J501B3 J501B5 J582A1 J582A...

Page 9: ...S AWG 26 2 5P L 110mm MAIN BD J6106B 12 276 032613 19 CABLE ASSY 3 WAYS AWG 26 2 5P L 60mm MAIN BD J6105B 13 276 032613 29 CABLE ASSY 3 WAYS AWG26X2C UL2547 MAIN BD L 210mm UL LABEL RoHS J715A 14 276 082613 22 CABLE ASSY 8 WAYS AWG 26X3C MAIN BD L 480mm RoHS J709A 15 276 102613 14 CABLE ASSY 10 WAYS AWG26 2 5P UL1007 MA BD L 460mm UL LABEL J350B 16 276 122613 16 CABLE ASSY 12 WAYS AWG26 2 5P UL246...

Page 10: ...0mm RoHS J414A 31 276 011843 01 CABLE ASSY 1 WAY AWG18 UL1007 BLACK V6 BD L 100mm W RING TERMINAL RoHS P4402 32 238 030070 20 FFC CABLE 30 PINS P1 25 L 70mm J601C W SHIELD 33 238 172820 03 FFC CABLE 17 PINS P1 25 L 200mm J720C W SHIELD 34 238 200016 00 FFC CABLE 20 PINS P1 25 L 160mm J604C W SHIELD 35 238 280017 00 FFC CABLE 28 PINS P1 25 L 170mm J602C J603C W SHIELD 36 238 300222 00 FFC CABLE 30 ...

Page 11: ...11 BLOCK DIAGRAM ...

Page 12: ...YSTEM TEST DEBUGGING M6759 U202 main clock is at 20MHz X202 M6759 U201 main clock is at 20MHz X201 UPPER 5V supply to KEYBOARD when power up LOWER RESET line TCM810LENB713 when power up UPPER OUTPUT ENABLE pin 24 of EPROM W27C02 when changing SURROUND MODES LOWER CHIP ENABLE pin 22 of EPROM W27C02 when changing SURROUND MODES SCLK pin 43 of CS49326 LRCLK pin 42 of CS49326 MCLK pin 30 of CS49326 NO...

Page 13: ...annels 2 Rotate R881 fully clockwise 3 Load all channels at full power using 1kHz sine wave 4 At this time monitor the THD of the SL SR BS output Clipping should occur before full power achieved 5 Rotate R834 counter clockwise slowly until the THD just below 0 1 6 Repeat step 2 5 for R834 but monitor FL FR Center output 7 The procedure is finish at this step 8 Load all channels at full power using...

Page 14: ...14 PCB LAYOUT AUDIO BOARD POWER SUPPLY STANDBY BOARD ...

Page 15: ...15 COMPONENT VIDEO BOARD COMPONENT SIDE COMPONENT VIDEO BOARD COPPER SIDE DIGITAL BOARD COMPONENT SIDE SIDE DIGITAL BOARD COPPER SIDE ...

Page 16: ...16 DSP BOARD COPPER SIDE DSP BOARD COMPONENT SIDE ...

Page 17: ...17 FRONT CENTER AMPLIFIER BOARD COMPONENT SIDE ...

Page 18: ...18 FRONT CENTER AMPLIFIER BOARD COPPER SIDE ...

Page 19: ...19 SURROUND AMPLIFIER BOARD COMPONENT SIDE ...

Page 20: ...20 SURROUND AMPLIFIER BOARD COPPER SIDE ...

Page 21: ...21 KEY BOARD POWER SWITCH COMPONENT SIDE KEY BOARD POWER SWITCH COPPER SIDE ...

Page 22: ...22 MAIN BOARD ...

Page 23: ...23 MULTI CHANNEL BOARD COMPONENT SIDE ...

Page 24: ...24 MULTI CHANNEL BOARD COPPER SIDE ...

Page 25: ...25 PRE OUT BOARD COPPER SIDE PRE OUT BOARD COMPONENT SIDE ...

Page 26: ...26 SPEAKER TERMINAL BOARD POWER SWITCH TRIGGER BOARD VIDEO 6 BOARD ...

Page 27: ...27 SECONDARY ISC BOARD COMPONENT SIDE SECONDARY ISC BOARD COPPER SIDE ...

Page 28: ...28 S VIDEO BOARD ...

Page 29: ...29 COMPOSITE VIDEO BOARD COMPONENT SIDE COMPOSITE VIDEO BOARD COPPER SIDE ...

Page 30: ...0 SCHEMATIC DIAGRAM AUDIO SWITCH RESISTORS UNLESS OTHERWISE SPECIFIED ARE CARBON FILM NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 ALL CERAMIC CAPACITORS UNLESS OTHERWISE SPECIFIED ARE 50V 10 ...

Page 31: ...31 COMPONENT VIDEO RESISTORS UNLESS OTHERWISE SPECIFIED ARE CARBON FILM NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 ALL CERAMIC CAPACITORS UNLESS OTHERWISE SPECIFIED ARE 50V 10 ...

Page 32: ...32 COMPOSITE VIDEO RESISTORS UNLESS OTHERWISE SPECIFIED ARE CARBON FILM NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 ALL CERAMIC CAPACITORS UNLESS OTHERWISE SPECIFIED ARE 50V 10 ...

Page 33: ...33 E C B 2SA1015 2SC1815 E C B 2SA1016 POWER SUPPLY SECONDARY NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 COMPONENTS MARKED ARE SAFETY CRITIAL PARTS ...

Page 34: ...34 POWER SUPPLY STAND BY RESISTORS F FUSIBLE UNLESS OTHERWISE SPECIFIED ARE CARBON FILM NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 COMPONENTS MARKED ARE SAFETY CRITIAL PARTS ...

Page 35: ...35 TRIGGER RESISTORS UNLESS OTHERWISE SPECIFIED ARE CARBON FILM NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 ALL CERAMIC CAPACITORS UNLESS OTHERWISE SPECIFIED ARE 50V 10 ...

Page 36: ...36 VIDEO 6 RESISTORS UNLESS OTHERWISE SPECIFIED ARE CARBON FILM NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 ALL CERAMIC CAPACITORS UNLESS OTHERWISE SPECIFIED ARE 50V 10 ...

Page 37: ...37 SPEAKER A B ...

Page 38: ...38 PREOUT E C B RN1241 DTA114ESA E C B NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 ALL CERAMIC CAPACITORS UNLESS OTHERWISE SPECIFIED ARE 50V 10 ...

Page 39: ...39 DIGITAL INPUT OUTPUT NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 ALL CERAMIC CAPACITORS UNLESS OTHERWISE SPECIFIED ARE 50V 10 ...

Page 40: ...40 E C B 2SC1815 2SC2878 DTC144ESA DTC123ESA E C B S VIDEO RESISTORS UNLESS OTHERWISE SPECIFIED ARE CARBON FILM NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 ALL CERAMIC CAPACITORS UNLESS OTHERWISE SPECIFIED ARE 50V 10 ...

Page 41: ...123ESA E C B FRONT CENTER CHANNEL POWER AMPLIFIER NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 ALL CERAMIC CAPACITORS UNLESS OTHERWISE SPECIFIED ARE 50V 10 3 COMPONENTS MARKED ARE SAFETY CRITIAL PARTS RESISTORS RN CERAMIC CASE MO METAL OXIDE UNLESS OTHERWISE SPECIFIED ARE CARBON FILM ...

Page 42: ...B 2SA1016K 2SC2362 E C B 2SC1740S E C B 2SB772 SURROUND CHANNEL POWER AMPLIFIER RESISTORS RN CERAMIC CASE MO METAL OXIDE UNLESS OTHERWISE SPECIFIED ARE CARBON FILM NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 ALL CERAMIC CAPACITORS UNLESS OTHERWISE SPECIFIED ARE 50V 10 3 COMPONENTS MARKED ARE SAFETY CRITIAL PARTS ...

Page 43: ...43 E C B 2SC1815 DSP NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 ALL CERAMIC CAPACITORS UNLESS OTHERWISE SPECIFIED ARE 50V 10 ...

Page 44: ...44 E C B 2SC1815 E C B 2SC1015 KEYBOARD NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 ALL CERAMIC CAPACITORS UNLESS OTHERWISE SPECIFIED ARE 50V 5 ...

Page 45: ...SS8050 SS8550 DTC144ESA DTA144ESA E C B MULTI CHANNEL RESISTORS UNLESS OTHERWISE SPECIFIED ARE CARBON FILM NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 ALL CERAMIC CAPACITORS UNLESS OTHERWISE SPECIFIED ARE 50V 10 ...

Page 46: ...46 E B C 2SD600K MAIN BOARD NOTE 1 RESISTORS UNLESS OTHERWISE SPECIFIED ARE 1 6W 5 2 ALL CERAMIC CAPACITORS UNLESS OTHERWISE SPECIFIED ARE 50V 10 ...

Page 47: ...1 Q2 Q3 Q4 Q5 Q6 Q7 74LVQ574 DSP BOARD U1008 U1009 W27C020 DSP BOARD U1007 Q0 Q7 CE OE A0 CONTROL OUTPUT BUFFER CORE ARRAY DECODER PGM VCC GND VPP A17 31 22 24 IC BLOCK DIAGRAM 74LVC245 DSP BOARD U1002 U1003 U1014 74VHC245 KEYBOARD U209 NJM5532 DSP BOARD U1010 U1013 U1023 U1025 MULTI CHANNEL U6104 U607 PRE OUT BOARD U609 U613 AUDIO BOARD U305 ISC BOARD U801 1 A 2 3 4 8 7 6 5 B CS4228AKS DSP BOARD ...

Page 48: ...SP Processing RAM Program Memory RAM Data Memory ROM Program Memory ROM Data Memory STC R W EMOE GPIO11 RD DS EMWR GPIO10 WR SCDIO SCDOUT PSEL GPIO9 A0 SCCLK A1 SCDIN ABOOT INTREQ EXTMEM GPIO8 Output Formatter RAM Output Buffer RESET CS49326 DSP BOARD U1001 Clock Data Recovery Misc Control Serial Audio Output Receiver AES3 S PDIF Decoder C U bit Data Buffer Control Port Registers RXN0 RXP6 OLRCK O...

Page 49: ...11 10 9 8 6A VCC 6Y 5A 5Y 4A 4Y 74HC251 DIGITAL BOARD U1203 PIN4 D0 W PIN6 Y PIN5 PIN8 GND PIN16 VCC PIN7 STROBE S0 PIN3 D1 S1 PIN2 D2 S2 PIN1 D3 S3 PIN15 D4 S4 PIN14 D5 S5 PIN13 D6 S6 PIN12 D7 PIN11 A PIN10 B PIN9 C S7 S0 S0 S1 S1 S2 S2 S3 S3 S4 S4 S5 S5 S6 S6 S7 S7 TCM810 KEYBOARD U214 VCC RESET RESET GND TCM809xENB TCM810xENB 1 2 3 3 Pin SOT 23B NOTE 3 Pin SOT 23B is equivalent to JEDEC TO 236 ...

Page 50: ...L Q STAGES 3 7 2 2 2 2 2 2 2 2 Q3 Q2 Q1 VSS VDD Q7 Q8 Q6 Q5 Q4 CL CL CL CL p n TL TL p n p n TL TL p n p n VDD VSS PCB 44 45 43 37 36 41 38 RDIO BK LATB LDIO RDIN RDOUT LDIN LDOUT DIR CLK SQ1 SQ64 QB1 HVO1 HVO23 G QB23 DIRECTION CONTROL UNIT SHIFT UNIT LATCH UNIT DIR RDIO LDIO DIR CLKB QB24 HVO24 HVO41 G QB41 LATCH UNIT 51 73 82 99 QB42 HVO42 HVO64 G QB64 LATCH UNIT 08 30 VDD2 02 31 50 79 VSS2 05 ...

Page 51: ...t Latch Serial Port Timer Interrupt Logic ACC ALU REG1 ALU REG2 PSW ALU B Register Stack Pointer Clocks and Control OSC Instruction Register RAM Addr Register 512 Bytes RAM XTAL1 XTAL2 PSEN ALE EA RST 64K bytes MTP Memory 4 6 COM OUT IN 7 5 INH VEE GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC 2 1 0 3 A B C CHANNELS IN OUT CHANNELS IN OUT CHANNELS IN OUT 74HC4051 74HC4051 KEYBOARD U208 S VIDEO BO...

Page 52: ... B Y CHANNELS IN OUT X CHANNELS IN OUT X CHANNELS IN OUT Y CHANNELS IN OUT 74HC4052 BA7660FS COMPONENT VIDEO BOARD U4301 MUTE INA GND INB GND N C INC GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 OUTA1 VCC OUTA2 OUTB1 OUTB2 N C OUTC1 OUTC2 75W 6dB 75W 6dB 6dB 75W 74HC4052 COMPONENT VIDEO BOARD U4302 U4303 ...

Page 53: ...53 LC74763 S VIDEO BOARD U4101 ...

Page 54: ...54 M61516FP MULTI CHANNEL BOARD U6101 U6102 ...

Page 55: ... 20 21 20 22 22 22 23 24 25 25 25 25 26 27 27 27 28 29 30 31 31 32 35 36 37 38 39 40 41 42 43 62 44 45 46 48 49 50 51 52 53 54 55 47 57 58 59 60 61 78 65 67 39 56 87 86 68 69 70 71 72 73 74 75 76 77 64 79 80 81 82 83 84 66 85 63 39 43 34 33 25 EXPLODED VIEW ...

Page 56: ...48C 14 610 030024 00 NUT M3 X 2 4mm RoHS 16 15 610 040032 00 NUT M4 X 3 2mm 0 7p 2 16 610 050034 00 NUT M5X3 4 NI PLT 4 17 610 090022 00 NUT ZINC PLATED M9 0 X 2 2mm 11p 1 18 614 030008 01 TAPTITE SCREW 3 X 8 SMALL K H TYPE B 2 BLK PLT RoHS 19 614 030018 00 MACHINE SCREW M3 X 18 P H NI PLT RoHS 16 20 614 030060 00 MACHINE SCREW M3 X 6 P H NI PLT RoHS 17 21 614 030060 01 MACHINE SCREW M3 X 6 P H BL...

Page 57: ...AL SPACER OD6 X ID3 2 X 4 8mm RoHS 2 51 659 057007 01 L BRACKET R 1 2 52 659 075206 00 PHONE BRACKET 1 53 659 075207 00 DUMMY BRACKET 2 54 659 076200 00 HEX SPACER AF5 5 H8 6 RoHS 10 55 659 076202 02 SUBFASCIA R 2 1 56 659 076207 00 S VIDEO SUPPORT BRACKET 1 57 659 076208 01 LARGE FAN MOUNTING BRACKET R 1 1 58 659 076209 00 HTSK SUPPORT BRACKET PAINTED BLACK 2 59 659 077309 00 POWER BUTTON BRACKET...

Page 58: ...TANIUM 1 FOR TITANIUM VER 78 691 075200 00 WINDOW LENS RoHS 1 79 694 016304 01 LINKED GOGGLE BEZEL PAINTED GREY 2 RoHS FOR GREY VER 694 016304 02 LINKED GOGGLE BEZEL PAINTED TITANIUM 2 RoHS FOR TITANIUM VER 80 694 016305 02 DUO GOGGLE BEZEL PAINTED GREY R 1 2 RoHS FOR GREY VER 694 016305 04 DUO GOGGLE BEZEL PAINTED TITANIUM 2 R 1 RoHS FOR TITANIUM VER 81 694 075200 01 VOLUME BEZEL PAINTED GREY 1 F...

Page 59: ...D507 D509 D514 300 000000 08 2 E DIODE SW 4NS DO35 1N4148 RoHS D522 D528 D531 D536 D529 D530 303 322200 01 4 DIODE ZENER BZX55 22V 1 2W 5 DO 35 BZX C22 COILS L501 L503 153 100000 01 7 E AIR COIL 0 2uH 10 1 X 9 X 13 5 TURNS RoHS RELAYS M501 M502 M505 182 312405 01 2 RELAY POWER DC24V 5A 250V 2P1T PCB ME 7C024 2HS THERMISTOR M504 M507 384 100057 00 5 THERMISTOR PTC 100 OHM PTH9MO4BH471TS2F333 THERMA...

Page 60: ... 16V 20 85C RAD HEIGHT 7mm MAX RoHS C801 C802 C835 130 477052 04 8 E CAP ELEC SS 4 7uF 50V 20 85C RAD HEIGHT 7mm MAX RoHS C805 C806 C836 110 102677 00 3 E CAP MYLAR 1000P 100V 10 ST4 0 RoHS C809 C810 C837 C874 C875 130 472022 01 4 E CAP ELEC GR 470uF 16V 20 85C RAD ST5 EGR R 477M1C 01 RoHS C819 C822 C843 C842 130 102082 02 1 CAP ELEC GR 100uF 100V 20 RAD EGRR 107M2A01 C823 C824 C844 106 104076 01 ...

Page 61: ... Q829 Q848 339 000038 00 1 XTR SS NPN HFE20 250MHz DTC123ESATP Q855 Q857 Q859 330 101121 01 7 XTR PW PNP 1A 100V TO 126 2SB631KE Q871 330 103600 04 1 XTR PW 3A 60V TO 126 2SB772Q Q872 339 000039 00 9 XTR SS NPN HFE270 560 180MHz 2SC1740STPS RESISTORS R844 R843 R8103 386 022853 01 5 RES RN 0 22 OHM 5 5W SIL 3 PIN COMMAND PIN2 WW R858 R857 R8110 383 010033 80 3 RES MO 10 OHM 5 2W AXIAL R829 R830 R83...

Page 62: ...01 01 6 E XTR SS NPN HEF 100 200MHz TO 92 C1815Y RoHS IC REGULATORS U1007 502 027020 00 3 I C EEPROM 256X8 BYTE 70nS PDIL SST27SF020 U1020 U1015 503 303171 00 8 IC REG 1A TO 220 T LM317T CRYSTAL X1001 290 512220 01 4 E CRYSTAL CLOCK OSCILLATOR 12 288MHz 50ppm 4PIN HALF SIZE RoHS CAPACITORS SMD C1001 C1003 C1017 C1019 C1074 120 104528 71 9 CAP CER SMD 0 1uF 50V 20 Y5V C1076 C1078 C1081 C1082 C1095 ...

Page 63: ... SMD 2 2K OHM 1 1 16W 0603 R1035 R1037 R1041 R1042 R1044 TAPE R1047 R1049 R1051 R1055 R1056 R1058 R1061 R1063 R1065 R1069 R1070 R1072 R1075 R1077 R1078 R1080 R1084 R1082 390 180126 11 8 RES SMD 1 8K OHM 5 1 16W 0603 TAPE R1090 R1091 390 270126 12 8 RES SMD 2 7K OHM 5 1 16W 0603 TAPE R1092 R1093 390 100026 11 6 RES SMD 100 OHM 5 1 16W 0603 TAPE R1095 R1096 R1117 R1120 R1050 390 100224 11 2 RES SMD ...

Page 64: ...CB MOUNT GOLD W SHIELD M301 M302 265 406042 00 5 RCA JACK 6 R R R W W W PCB MOUNT GOLD RCA 653D 04 W COVER COMPONENT VIDEO BOARD PCB ASSEMBLY 800 CVBD53 20 T753AH US Phase II Component Video Board Assembly CAPACITORS C4310 C4312 C4325 C4327 C4328 130 101022 02 8 E CAP ELEC SS 10uF 16V 20 85C RAD HEIGHT 7mm MAX RoHS C4316 C4318 C4320 130 103012 03 3 CAP ELEC GS 1000uF 10V 20 85C RAD ST5 GS102M010G1...

Page 65: ...138 00 7 FIBRE OPTIC RECEIVING UNIT GP1FA550RZ J1008 320 669138 01 4 FIBRE OPTIC TRANSMITTER GP1FA550TZ RCA JACKS J1001 J1004 J1007 265 401032 00 9 RCA JACK 1 BLACK PCB MOUNT GOLD W SHIELD CAPACITORS SMD C1232 C1235 120 221527 50 5 CAP CER SMD 220pF 50V 10 X7R 0603 TAPE ICS SMD U1203 500 012519 00 2 IC LOGIC 8 CHANNEL MULTIPLEXER SSOP 74HC251M1R U1201 U1202 500 080499 00 7 IC LOGIC HEX INVERTER SM...

Page 66: ...7 R841 383 022823 60 4 RES MO 0 22 OHM 5 1 2W AXIAL TAPE REEL VRS R881 253 050310 02 6 VR SEMI FIXED RESISTOR CF 50K OHM 30 B 6mm HOR IC SMD U801 507 705532 01 7 E IC AUDIO LOW NOISE OP AMP SMD NJM5532M RoHS KEY BOARD PCB ASSEMBLY 800 KEBD53 20 PCB Assy T753AH US Phase II Keyboard Board Assembly CAPACITORS C208 C209 C210 C211 C259 130 471022 03 1 E CAP ELEC SS 47uF 16V 20 85C RAD HEIGHT 7mm MAX Ro...

Page 67: ...0 520020 02 5 E CRYSTAL 20 000MHz 30ppm HC 49S RoHS CAPACITORS SMD C201 C202 C213 C215 C222 C229 120 104528 71 9 CAP CER SMD 0 1uF 50V 20 Y5V C256 C257 0603 TAPE C223 120 103527 52 6 CAP CER SMD 10nF 50V 10 X7R 0603 TAPE C241 C242 120 102527 51 9 CAP CER SMD 1nF 50V 10 X7R 0603 TAPE C251 C254 120 330527 50 7 CAP CER SMD 33pF 50V 10 X7R 0603 TRANSISTORS SMD Q205 Q206 339 000043 00 4 E XTR SS NPN HF...

Page 68: ...BIT 64KROM 1024 BYTE SCRAM PLCC T89C51RD2 SL U202 501 008951 00 9 E IC MCU 8 BIT 16KROM 1024 BYTE XRAM PLCC AT89C51RB2 SL RoHS U203 509 963060 00 5 IC VFD DRIVER SMD QFP PT6306 U204 U207 U211 500 054094 01 6 IC LOGIC 8 STAGE SHIFT AND STORE BUS REGISTER SMD SO16 HEF40 94BT U208 500 014051 00 9 IC LOGIC SINGLE 8 CH ANALOG MUX DEMUX SMD M74HC4051MIR U209 500 032459 03 8 IC LOGIC OCTAL BUS TRANSCEIVE...

Page 69: ...30V 1 2W 5 DO35 BZX55 C30V D715 305 500470 00 2 DIODE BRI 4A 70V RS402L JUMPER BARS JP1 JP2 670 075200 01 7 JUMPER BAR DIA1 5 X 25 R 1 TRANSISTORS Q701 330 101121 00 6 XTR PW NPN 1A 100V TO 126 2SD600KE REGULATORS U702 U707 503 300120 07 2 E IC VOLT REG 12V 1A TO 220 NJM7812 ISOWATT RoHS U703 503 310120 01 9 E IC VOLT REG TO 220F NJM7912 RoHS U701 U704 U705 503 300050 14 5 E IC VOLT REG 5V 1A TO 2...

Page 70: ...D 04 W COVER M6102 265 402032 00 5 RCA JACK 2 B B PCB MOUNT GOLD W SHIELD TRANSISTORS Q6101 339 000014 00 9 E XTR SS NPN HFE 120 200 190MHz TO 92 8050C RoHS Q6102 339 010022 00 4 E XTR SS PNP HFE 120 200 200MHz TO 92 8550C RoHS RESISTORS R609 R610 R615 381 330221 00 5 E RES MF 33K OHM 1 1 6W AXIAL TAPE REEL GP R611 R612 R616 381 200221 00 8 E RES MF 20K OHM 1 1 6W AXIAL TAPE REEL GP R613 R614 381 ...

Page 71: ...CAP ELEC SS 220uF 16V 20 85C 8x9mm RAD RoHS C647 C652 C657 C662 C672 C700 130 101022 02 8 E CAP ELEC SS 10uF 16V 20 85C RAD C705 HEIGHT 7mm MAX RoHS C684 C688 C699 130 332022 02 4 E CAP ELEC GR 330uF 16V 20 85C RAD RoHS DIODES D601 D605 D610 300 000000 08 2 E DIODE SW 4NS DO35 1N4148 RoHS D611 D614 301 010071 00 3 E DIODE RECT 1A 1000V DO41 WIN4007 REEL TYPE RoHS JUMPER BAR JP6201 JP6216 670 07520...

Page 72: ... 2K OHM 1 1 6W AXIAL TAPE REEL CAPACITORS SMD C738 C740 120 221527 50 5 CAP CER SMD 220pF 50V 10 X7R 0603 TAPE C747 C766 120 104528 71 9 CAP CER SMD 0 1uF 50V 20 Y5V 0603 TAPE DIODES SMD D615 D618 303 391200 04 3 DIODE ZENER SMD 12V 500mW 5 SOD123 MMSZ5242BT1 ICS SMD U609 U615 507 705532 01 7 E IC AUDIO LOW NOISE OP AMP SMD NJM5532M RoHS POWER SUPPLY BOARD PCB ASSEMBLY AH AHT 800 PSUD53 20 T753AH ...

Page 73: ... 61 1 RES CONDUCTIVE PATH 3 9M OHM 1 2W 5 250V STANDBY TRANSFORMER T751 177 004005 01 2 E TRANSFORMER PW EI 35 100V 220V T05382B ISS 2 RoHS JUMPERS JP1 AH AHT 232 005160 00 1 E TINNED WIRE DIA 0 5MM L 16 0MM GP JP2 AH AHT 232 005160 00 1 E TINNED WIRE DIA 0 5MM L 16 0MM GP JP3 C CT 232 005080 00 9 E TINNED WIRE DIA 0 5MM L 8 0MM GP JMP1 232 005190 00 4 E TINNED WIRE DIA 0 5MM L 19 0MM GP JMP2 232 ...

Page 74: ... C4136 C4146 106 247076 04 9 E CAP MpF 0 47uF 63V 5 DMF 5 SERIES RoHS C4138 118 200078 00 2 CAP TRIMMER 20pF 20 SEALED HORI PITCH 5mm CVN620 C4141 C4133 C4137 130 107052 03 6 E CAP ELEC SS 1uF 50V 20 85C RAD HEIGHT 7mm MAX RoHS C4144 130 108052 01 9 E CAP ELEC SS 0 1uF 50V 20 85C RAD HEIGHT 7mm RoHS C4145 130 221022 03 2 E CAP ELEC GS 22uF 16V 20 85C RAD HEIGHT 7mm MAX RoHS C4150 130 471022 03 1 E...

Page 75: ...N HEF 100 200MHz TO 92 C1815Y RoHS Q4136 Q4137 Q4140 Q4141 339 010022 00 4 E XTR SS PNP HFE 120 200 200MHz TO 92 8550C RoHS SWITCH S4101 182 410220 02 3 SW SLIDE 2P2T RIGHT L 9 JSK022N09 G09 IC U4101 505 557476 00 8 IC OSD DIP30SD LC74763 9012 CRYSTALS X4101 290 514320 01 2 E CRYSTAL 14 318MHz 30ppm 32pF HC 49S RoHS X4102 290 517720 01 5 E CRYSTAL 17 73447MHz 20ppm 30pF HC 49S RoHS ICS SMD U4102 U...

Page 76: ...00uF 16V 20 85C RAD HEIGHT 7mm MAX JACKS M4401 265 401000 01 9 RCA JACK 1 YELLOW PCB MOUNT GOLD W O COVER M4404 265 401010 01 7 RCA JACK 1 RED PCB MOUNT GOLD W O COVER M4403 265 401020 01 5 RCA JACK 1 WHITE PCB MOUNT GOLD M4402 266 411030 01 9 DIN JACK 1 BLACK PCB MOUNT MD 113 J4401 270 451030 14 8 PHONE JACK D6 3 1 PCB MOUNT GOLD KF C9002 03 COMPOSITE VIDEO BOARD PCB ASSEMBLY 800 VEBD53 20 T753AH...

Page 77: ...00 200MHz TO 92 8550C RoHS Q4501 Q4503 339 010037 00 6 XTR SS PNP HFE 270 560 140MHz 2SA933ASTPS RESISTORS SMD J4201 J4202 398 000036 20 7 E RES SMD 0 OHM 5 1 10W 0805 TYPE GP ICS SMD U4201 500 014051 00 9 IC LOGIC SINGLE 8 CH ANALOG MUX DEMUX SMD M74HC4051MIR NOTE THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR RISK OF FIRE AND ELECTRICAL SHOCK REPLACE ONLY WITH PART NUMBER SPECIFIED AH USA CA...

Page 78: ... 00 1 E CARD WARRANTY T752 T762 NAD R 0 RoHS 1 3 223 075200 03 6 E REMOTE CONTROLLER NAD HTR 2A 1 P V1 08 L V1 12 RoHS 4 901 076300 03 9 POLYOAM TOP BOTTOM T763 R 3 2 5 906 076200 01 2 POLYBAG T762 W SILKSCREEN MAIN UNIT 1 W650 X L650mm HD PE R 0 6 904 075207 00 3 E A3 WHITE PAPER 80G RoHS 1 7 906 076300 00 7 E PROTECTIVE COVER T763 RoHS 1 8 AH AHT 234 288101 00 6 AC CORD 110V 3PINS 125V 13A SJT 1...

Page 79: ...358421 R61T75358850 V2 12 ONLY 555 275347 22 ALL OTHER ARE 555 2753 23 R63T75359151 R63T75359200 V2 12 ONLY 555 275300 24 R63T75358851 ONWARD ALL OTHER ARE 555 2753 23 REMARK T 753 PHASE II has divided into 8 PCBs Part Number 1 555 275300 2 555 275301 3 555 275305 4 555 275306 5 555 275311 6 555 275337 7 555 275342 8 555 275347 ...

Page 80: ...80 SERVICE MANUAL T 753 Phase II Surround Sound Receiver NAD ELECTRONICS LTD LONDON ...

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NAD T753, Service Manual

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