NAD T 775 Service Manual
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NAD T 775 Service Manual

Surround sound receiver
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DRAFT DATE: AUGUST 2009
NAD
T 775
Surround Sound
Receiver

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Summary of Contents for NAD T 775

  • Page 1 DRAFT DATE: AUGUST 2009 T 775 Surround Sound Receiver...
  • Page 2 SAFETY INFORMATION Manufactured under license under U.S. Patent #’s: 5,451,942; 5,956,674; 5,974,380; 5,978,762; 6,226,616; 6,487,535; 7,003,467; 7,212,872 & other U.S. and worldwide patents issued & pending. DTS is a registered trademark & the DTS logos and Symbol are trademarks of DTS, Inc. © 1996-2007 DTS, Inc. All Rights Reserved.

  • Page 3: Table Of Contents

    SERVICE SAFETY PRECAUTIONS 1. Replacing the fuses CAUTION: FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE REPLACE ONLY WITH SAME TYPE OF FUSE. Reference Designator Database Part Number Description F8001*AH 20-001-0078-90 FUSE TIME-LAG 10A/250VAC 5X20mm UL/CSA 5T F8001*C,CT 20-001-0072-90 FUSE TIME-LAG 6.3A 250VAC 5X20mm TSD UL/CSA/VDE/CCC WALTER F8002*AH...

  • Page 4: Specifications

    SPECIFICATIONS POWER AMPLIFIER SECTION ≤ 0.1 % Rated distortion (Rated power level into 8 ohms, THD 20 Hz-20 kHz FL/C/FR) ≤ 0.1 % (Rated power level into 8 ohms, THD 20 Hz-20 kHz SL/SR/BS) 1 ± 0.1 V Input Sensitivity (ref. 8 ohms, 1 kHz) ≥...
  • Page 5 DTS SECTION Output Level (Vol 0 dB) : FL/FR/C/SL/SR Track 6 1 kHz 0.5 -0.2/+0.8 W 0 ± 1.0 dB Channel Difference (FL ref) : FL/FR/C/SL/SR Track 6 1 kHz ≤ 0.08 % Harmonic Distortion (Audio Filter) : FL/FR/C/SL/SR Track 10-14 1 kHz Frequency Response (20 Hz to 20 kHz) Track 26-30...

  • Page 6: Rear Panel / Front Panel View

    REAR PANEL / FRONT PANEL VIEW REAR PANEL DIGITAL AUDIO IN/OUT 13. +12V TRIGGER OUT AUDIO/VIDEO 1~6 IN HDMI 14. IR IN/OUT 7.1 CH INPUT 15. ZONE 2,3,4 COMPONENT IN/OUT XM MODULE INPUT(AH) 16. AUDIO PREOUT MP DOCK DAB MODULE INOUT(C,CT) 17.

  • Page 7: Disassembly Instructions

    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. 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.

  • Page 8: Wiring Diagram

    WIRING DIAGRAM...
  • Page 9 WIRING DIAGRAM PARTS LIST Item Database Part Number Description Remark 17-012-2965-90 CABLE ASSY 4 WAYS #26 2.5P L=400mm BD-J8002A 17-012-3943-90 CABLE ASSY 1 WAY #16 UL1672 BLUE L=140mm FASTON 4.8mm BD-J8011 17-012-3944-90 CABLE ASSY 1 WAY #16 UL1672 BROWN L=140mm FASTON 4.8mm BD-J8012 17-012-3940-90 CABLE ASSY 3 WAYS #26 2.5P UL2854...

  • Page 10: Block Diagram

    BLOCK DIAGRAM...

  • Page 11: Special Function

    SPECIAL FUNCTION Function Keys Notes Factory Reset AH Source Down + Front/MP Factory Reset C Source UP + Front/MP Toggle IR Channel Source Down + Power Only for v1.08 or higher. Check MCU Version Source Down + Source UP For v1.03 or higher, this checks all versions. Check DSP Version Source Down + Listening Mode Only for v1.02 or older.

  • Page 12: Details & Waveforms On System Test & Debugging

    DETAILS & WAVEFORMS ON SYSTEM TEST & DEBUGGING U1007 Pin 17 - X1001C output, 24.576MHz U1007 Pin 70 - Clock for external memory, 100MHz U1007 Pin 2 - Master clock (Analog), 12.288MHz U1007 Pin 2 - Master clock (PCM), 11.2896MHz U1007 Pin 12 –...
  • Page 13 U1007 Pin 9 - Serial clock (Analog), 3.072MHz U2001 Pin 12 - X2001A output, 20.000MHz HDMI U12 Pin 38 – U3 output, 28.636MHz...
  • Page 14 U9 Pin 1 –DAC_HS (OSD Off), 31.48kHz U9 Pin 54 –DAC_VS (OSD On, NTSC), 60Hz U9 Pin 1 –DAC_HS (OSD On), 15.72kHz U9 Pin 54 –DAC_VS (OSD On, PAL), 50Hz U9 Pin 54 –DAC_VS (OSD Off), 60Hz U9 Pin 4 –DAC_FLD (OSD Off), Idle...
  • Page 15 U9 Pin 4 –DAC_FLD (OSD On, NTSC), 30Hz U9 Pin 51 –PCLK (OSD On), 27MHz U9 Pin 4 –DAC_FLD (OSD On, PAL), 25Hz U9 Pin 51 –PCLK (OSD Off), 27MHz...

  • Page 16: Adjustment Points Diagram / Amplifier Adjustment

    ADJUSTMENT POINT DIAGRAM LEFT/RIGHT CHANNEL AMPLIFIER BOARD SECONDARY / ISC BOARD AMPLIFIER ADJUSTMENT Idle Current Rotate R5221 fully clockwise. Connect DC millivoltmeter to P5501 (i.e. Across half of R5228 and R5530, 0.22 Ohm resistor). Turn on the unit. Adjust R5221 for 2mV +/- 0.2mV reading on voltmeter. Leave power on for at least 5 min, and check for idle current again.

  • Page 17: Pcb Layout

    PCB LAYOUT POWER AMPLIFIER LEFT_CH BOARD-COPPER SIDE First Production runs: Production runs: T71T775G00001-T71T775G00028 & T78T775G00511 and above T78T775G00029-T78T775G00510...
  • Page 18 LEFT_CH BOARD - COMPONENT SIDE First Production runs: Production runs: T71T775G00001-T71T775G00028 & T78T775G00511 and above T78T775G00029-T78T775G00510...
  • Page 19 RIGHT_CH BOARD-COPPER SIDE First Production runs: Production runs: T71T775G00001-T71T775G00028 & T78T775G00511 and above T78T775G00029-T78T775G00510...
  • Page 20 RIGHT_CH BOARD-COMPONENT SIDE First Production runs: Production runs: T71T775G00001-T71T775G00028 & T78T775G00511 and above T78T775G00029-T78T775G00510...
  • Page 21 DSP BOARD - COPPER SIDE...
  • Page 22 DSP BOARD - COMPONENT SIDE...
  • Page 23 KEY BOARD - COMPONENT SIDE KEY BOARD - COPPER SIDE...
  • Page 24 PRE-OUT BOARD- COPPER SIDE...
  • Page 25 PRE-OUT BOARD-COMPONENT SIDE...
  • Page 26 VOLUME BOARD - COPPER SIDE...
  • Page 27 VOLUME BOARD - COMPONENT SIDE...
  • Page 28 F-INPUT BOARD - COPPER SIDE F-INPUT BOARD - COMPONENT SIDE...
  • Page 29 MAIN BOARD -COMPONENT SIDE...
  • Page 30 TRIGGER BOARD - COMPONENT SIDE TRIGGER BOARD - COPPER SIDE...
  • Page 31 COMPONENT BOARD-COMPONENT SIDE COMPONENT BOARD-COPPER SIDE...
  • Page 32 VIDEO BOARD - COPPER SIDE VIDEO BOARD - COMPONENT SIDE...
  • Page 33 HDMI BOARD-COPPER SIDE...
  • Page 34 HDMI BOARD-COMPONENT SIDE...
  • Page 35 PSU-ISC BOARD-COMONENT SIDE PSU-ISC BOARD-COPPER SIDE...
  • Page 36 CONNECTOR 1 BOARD-COMPONENT SIDE CONNECTOR 1 BOARD-COPPER SIDE...
  • Page 37 MCU BOARD-COMPONENT SIDE MCU BOARD-COPPER SIDE...
  • Page 38 PSU-STD BOARD-COMPONENT SIDE PSU-SECONDARY BOARD-COMPONENT SIDE...
  • Page 39 CONNECTOR-3 BOARD-COMPONENT SIDE CONNECTOR-4 BOARD-COMPONENT SIDE SPEAKER BOARD-COMPONENT SIDE...
  • Page 40 CONNECTOR-2 BOARD-COMPONENT SIDE...

  • Page 41: Schematic Diagram

    SCHEMATIC DIAGRAM First Production runs: T775G00001-T71T775G00028 & POWER AMPLIFIER RIGHT-CH T78T775G00029-T78T775G00510 R5018 R5038 R5039 1/2W D5411 LL4148 Q5017 R5138 R5139 2SC5669 Q5006 D5412 R5034 LL4148 MMBT5401LT1 O_GND C5012 Q5013 Q5008 100p 100V MMBT5551LT1 Q5015 R5031 R5238 R5239 MMBT5401LT1 D5413 Q5007 C5019 2SD1918 LL4148...
  • Page 42 SCHEMATIC DIAGRAM Production runs: T78T775G00511 and above POWER AMPLIFIER RIGHT-CH R 5 0 1 8 R 5 0 3 8 R 5 0 3 9 D5 4 1 1 4 7 1 /2 W 1 5 k 2 2 k LL4 1 4 8 C 5 0 0 9 R 5 0 1 0...
  • Page 43 First Production runs: POWER AMPLIFIER LEFT-CH T71T775G00001-T71T775G00028 & T78T775G00029-T78T775G00510 R5518 1/2W R5538 R5539 D5510 LL4148 Q5517 M5804-B 2SC5669 C5516 R5534 R5638 R5639 Q5506 C5512 D5610 FL(B) 100p LL4148 O_GND 100V J5802A MMBT5401LT1 100p Q5513 MMBT5551LT1 Q5515 To Speaker Out R5531 M5803-B R5738 R5739...
  • Page 44 Production runs: POWER AMPLIFIER LEFT-CH T78T775G00511 and above R 5 5 1 8 4 7 1 /2 W R 5 5 1 0 C 5 5 0 9 D5 5 1 0 R 5 5 3 8 R 5 5 3 9 1 0 0 4 7 u F R 5 5 1 4...
  • Page 45 DSP-1 2 2 5 u H 4 7 k 7 4 H C U 0 4 C 1 0 0 3 R 1 3 0 0 R 1 3 2 7 C 1 0 0 1 R 1 0 0 1 R 1 0 0 2 R 1 0 0 3 R 1 3 2 6...
  • Page 46 DSP-2 U 1 0 1 3 PC M 1 7 9 1 A R 1 2 7 6 1 7 9 1 _ LR C K LR C K 1 7 9 1 _ M S R 1 2 8 2 R 1 0 9 5 7 .5 k 1 7 9 1 _ B C K...
  • Page 47 DSP-3 R 1 1 8 9 N .I. +1 2 V _ A U 1 0 2 3 -A U 1 0 3 4 C 1 2 6 4 N JM 5 5 3 2 M LM 1 1 1 7 - 5 .0 1 0 u 1 6 V R 1 1 8 8 1 0 k Q 1 0 2 0 2 S C 4 6 9 5...
  • Page 48 CONNECTOR-3...
  • Page 49 KEYBOARD +5 V _ K +5 V _ K V D2 2 0 1 R 2 2 3 0 R 2 2 3 1 1 0 k 1 0 k M 2 2 0 1 V F D-1 6 -B T-1 3 0 G IN K E C 1 6 2 1 0 2 F 2 B -H A 1 -0 0 2 R 2 2 3 2 1 0 0 +5 V _ K...
  • Page 50 PRE-OUT-1 C6901 +10.5V +10.5V R6901 1k 22u 16V FRONT L C6903 R6905 100p R6971 0 C6941 C6943 M6501-C C6945 C6947 0.1u U6501-C U6601-C 0.1u R6906 R6902 1k NJM5532M NJM5532M C6904 FRONT R 100p C6942 C6944 C6946 C6948 C6902 0.1u 0.1u 22u 16V AGND AGND...
  • Page 51 PRE-OUT-2 FOR T175: ALL N.I. R6551 R6528 R6529 R6533 R6523 U6502-A C6518 470 1/16W 470 1/16W C6521 220 1/16W N.I. PO_FL -10.5V 22u 16V R6524 Q6507 C6516 C6517 220p 2SC4695 FRONT L 1/16W Q6506 N.I. 50V 2SC4695 R6526 R6531 R6532 R6525 N.I.
  • Page 52 VOLUME-1 J6001A To Conn#1 J6001B DSP_FL U6018-B DSP_FR NJM5532M AGND DSP_SL C6019 DSP_SR C6001 R6101 22u 16V 100p C6085 0.01u AUDIO 6 L +5V_K DSP_SBL R6137 R6163 M6001-A R6165 33k C6002 DSP_SBR R6138 100p R6102 R6164 AUDIO 6 R R6166 C6020 DSP_SUBW C6103...
  • Page 53 VOLUME-2 +10.5V -10.5V C6141 C6140 0.1u C6139 C6137 0.1u AGND AGND U6008 TPA6120A2 R6242 R6243 U6010-A 1 LVCC- RVCC- C6146 N.I. C6149 R6004 R6008 R6009 C6153 PO_Z2L R6012 C6266 C6258 Z2_L R6100 10u16V 2 LOUT ROUT HP_R 470 1/16W 220 1/16W N.I.16V 1k 1/16W 22u 16V...
  • Page 54 CONNECTOR-2...
  • Page 55 CONNECTOR-4...
  • Page 56 SPEAKER...
  • Page 57 F-INPUT +5V_V6 M9301 R9301 4.7 FRONT C9301 0.1uF C9302 OPTICAL INPUT 2.2uF -12V_A +12V_A +5V_V6 +5V_V6 +5V_V6 MIC_BIAS: DGND_V M9302 C9320 H: MP3 22u 16V J-TR-ST03007 R9329 0 R9312 N.I. L: MIC C9318 R9334 R9330 Q9301 R9311 100p MIC/MP IN N.I.
  • Page 58 MAIN BOARD TO Conn#1 J7007B TO Conn#1 J7006B J7007A J7006A D7001 RS605 +5V_DSP 600V 6A U7001 C7019 C7018 C7029 C7028 7805 C7020 C7021 2200u 0.1u 1000u 0.1u 4700u 0.1u +5.3V DGND +8V_V U7007 D7005 LM317 D7002 RS605 +5V_V 600V 6A R7002 U7002 C7022...
  • Page 59 POWER SUPPLY(STAND BY) J8002A M8001 M8004 T8001 To CONN#2 J8002B JP8001 TO XFORMER TO XFORMER R8003 +13V TO5382B N.I. 0.22 1/2W POWER_ON (Fusible) +12.3V M8002-A D8002 D8003 1N4007 DGND 1N4007 JP8002 D8005 C8001 C8003 JUMPER TO POWER SWITCH R8001 D8001 C8002 1N4007 0.022u...
  • Page 60 TRIGGER +5.3V +5V_V D2308 N.I. FOR CE U2302 R2356 R2357 TPS2011A N.I. OUT8 D2308 CM1213-08MS OUT7 +5V_K OUT6 OUT5 C2329 +3.3V C2326 C2327 0.1u 0.1u +3.3V R2347 N.I. DGND DGND DGND DGND DAB_TXD M2307 R2329 N.I. N.I. FOR CE R2331 R2332 Q2316 +5V_OUT...
  • Page 61 COMPONENT VIDEO +5 V _ V C 4 0 1 1 U 4 0 0 2 7 4 H C 4 0 5 2 C 4 0 0 9 2 .2 u 5 0 V R 4 0 1 1 DV R IN Y 0 .1 u 1 Y0...
  • Page 62 VIDEO C 4 1 2 1 R 4 1 2 7 2 .2 u 5 0 V M 4 1 0 1 V IDE O 1 IN 1 /1 6 W V G N D C 4 1 2 2 2 .2 u 5 0 V R 4 1 2 8 C V _ G N D...
  • Page 63 HDMI-1 J1 0 4 6 pin V D1 8 V D3 3 O _ I2 S 2 O _ I2 S 0 O _ I2 S 3 S DA _ 7 4 0 3 O _ I2 S 1 B K G 2 1 1 A V P2 S C L_ 7 4 0 3...
  • Page 64 HDMI-2 V D3 3 C on n ector H DM I 1 9 pin C on n ector H DM I 1 9 pin J1 3 IN 4 O U T IN 1 _ D0 + TX _ D0 + 7 D0 + D0 + IN 1 _ D0 -...
  • Page 65 HDMI-3 F or U 2 8 - A DV 7 3 2 0 F or U 3 1 - A D9 3 8 9 V D3 3 V D2 5 V A 2 5 V D1 8 V A 1 8 V A 1 8 C 5 1 C 5 4...
  • Page 66 POWER SUPPLY(ISC) J5803B To AMP-L J5803A ISC_THM_R DGND ISC_SEN_L J5810B To AMP-L J5810A ISC_THM_L DGND ISC_SEN_R ISC FOR LEFT AMP ISC FOR RIGHT AMP V+_L +12V R8245 +12V +12V R8201 C8209 C8201 R8207 C8205 D8209 100k 0.1u D8211 R8206 0.1u D8212 R8212 R8219...
  • Page 67 POWER SUPPLY(SECONDARY) J5804B TO LEFT AMP J5804A C8101 V+_L J8151A J8151B 12000u CHGND V-_L Jumper Wire AGND C8102 GROUND CONNECTION J8101A 12000u TO ISC J8101B FOR RIGHT AMP (FR/C/SR/SBR) V+_L V-_L V+_R J8105A To SPEAKER OUT (J8105B_1, J8105B_2, J8105B_3, J8105B_4) V-_R AGND J5402B...
  • Page 68 CONNECTOR-1 TO DSP TO DSP TO PRE-OUT J1101B J1102B J6501B to DSP (J1101A) to DSP (J1102A) To Pre-Out (J6501A) J7006B TO MAIN(J7006A) +5V_DSP TO VOLUME +5V_DSP DGND DGND +8V_V TO MAIN +8V_V +8V_V +8V_V +5V_V +5V_V DGND_V DGND_V J6001B to VOLUME (J6001A) DSP_FL DSP_FL J7007B...
  • Page 69 +5V_K +5V_K R2032 R2034 2.2k 2.2k 4094(1)_CLK_AMP 4094(1)_DATA_AMP J2005A J2006A J2008A J2002A J2001A 4094(1)_CLK DTA114EKA 4094(1)_DATA DTA114EKA To Front Input J2005B To Front Input J2006B TO FRONT INPUT J2008B To Keyboard J2002B To Right Amp J2001B +5V_K +5V_K Q2002 Q2004 +5V_K +39V AC4.8V1 AC4.8V2 +5V_K...

  • Page 70: Electrical Parts List

    ELECTRICAL PARTS LIST POWER AMP MODULE ***SEE PAGE 124 FOR SINGLE CHANNEL SERVICE KIT # 52-940-0765-90 PCB ASSEMBLY 50-940-0765-90 T765/T775 PWR AMP MODULE MAIN BOARD PCB ASSEMBLY 50-901-0765-90 T765/T775/T785 AH MAIN ASSY REGULATORS U7001-7002 U7004 01-004-0048-00 IC VOLT REG 5V 1A TO-220 NJM7805FA U7003 U7005 01-004-0049-00 IC VOLT REG 12V 1A TO-220 NJM7812...
  • Page 71 R8006 02-004-0016-90 NTC SL32-1R030 30A/265V CAPACITORS C8002 03-002-0148-00 CAP ELEC SS 4.7uF 50V 20% 85C C8001 03-004-0115-00 CAP MpF 0.001uF 63V 5% DMF 5 SERIES C8006 03-007-0014-00 HC CER CAP 0.01uF/250VAC ±20% UL/CSA/VDE DIODES D8001-8006 04-001-0003-00 Diode 1N4007 DO-41 1A/1000V TRANSISTORS Q8001 05-001-0072-00...
  • Page 72 CAPACITORS C5018 C5118 C5218 C5318 03-004-0031-00 MPF CAP 104J/63V 5% Mini Box TRANSISTORS Q5018 Q5118 Q5218 Q5318 05-001-0100-90 TRANSISTOR PW DARLINGTON PNP 10A/150V TO-3PB 2SB1560 Q5017 Q5117 Q5217 Q5317 05-001-0101-90 TRANSISTOR PW DARLINGTON NPN 10A/150V TO-3PB 2SD2390 VARIABLE RESISTORS R5021 R5121 R5221 R5321 06-004-0016-90 VR SEMI-FIX RES CF 1K OHM B 30% COILS...
  • Page 73 R5418 02-007-0325-00 RES SMD 4.22K OHM 1% 1/10W 0805 R5002 R5102 R5202 R5302 02-007-0327-00 RES SMD 470 OHM 5% 1/4W 1206 R5118 R5122 R5218 R5222 02-007-0328-00 RES SMD 47 OHM 5% 1/2W 2010 R5018 R5022 R5318 R5322 R5017 R5117 R5217 R5317 02-007-0330-00 RES SMD 56K OHM 5% 1/4W 1206 R5040 R5140 R5240 R5340 R5405...
  • Page 74 Q5008 Q5108 Q5208 05-004-0019-00 SMD Transistor MMBT5401LT1G PN Q5308 Q5408 Q5406 PCAP ELEC SMD SOT-23 Q5010 Q5110 Q5210 Q5310 05-004-0030-90 XTR 2SD1918 NPN POWER 160V/1.5A 80MHz HFE 120-390 SMD Q5006 Q5007 Q5009 Q5106 Q5107 05-004-0031-90 XTR 2SB1275 PNP POWER 160V/1.5A Q5109 Q5206 Q5207 Q5209 Q5306 50MHz HFE 82-180 SMD Q5307 Q5309...
  • Page 75 SMD RESISTORS R5506 R5606 R5706 R5803 R5825 02-007-0026-00 RES SMD 47K OHM 5% 1/10W 0805 R5826 02-007-0028-00 RES SMD 4.7K OHM 5% 1/10W 0805 R5808 R5811 R5816 R5818 02-007-0033-00 RES SMD 1.2K OHM 5% 1/10W 0805 R5619 R5519 R5719 02-007-0035-00 RES SMD 2K OHM +/-5% 1/10W 0805 R5537 R5637 R5737 02-007-0037-00...
  • Page 76 C5604 C5704 C5504 03-009-0144-00 CAP ELEC SMD 470uF 16V +/-20% 10X10.5 C5609 C5611 C5709 C5711 03-009-0145-00 CAP ELEC SMD 47uF 100V +/-20% C5509 C5511 C5810 10X10 C5816 03-009-0153-00 SMD E CAP 1uF/50V ±20% B CASE 4 X C5801 C5808 C5819 03-009-0211-00 SMD E CAP 220uF/16V ±20% 6.3X7.7 SMD DIODES...
  • Page 77 U6008 01-014-0051-90 IC TPA6120A2DWP HIGH FIDELITY HEADPHONE AMPLIIER 20 PINS SOIC U6001-6002 01-027-0012-90 IC R2S15205FP 8 CH ELECTRONIC VOLUME W/ INPUT SWITCH & TONE CTRL SMD 80 PINS QFP SMD RESISTORS R6040 R6016 R6052 R6064 R6028 02-007-0042-00 RES SMD 1K OHM 0603 5% R6004 R6101-6104 R6107-6108 R6111-6116 R6161-6162 R6199 R6093 R6094 R6097 R6098...
  • Page 78 C6001-6018 C6124 C6127 03-009-0111-00 CAP CER SMD 100pF 50V 10% X7R C6130-6132 C6135 C6265 0603 C6243 03-009-0112-00 CAP CER SMD 1nF 50V 10% X7R 0603 C6082-6083 C6085 03-009-0113-00 CAP CER SMD 10nF 50V 10% X7R 0603 C6195-6197 C6158 C6204 C6166 03-009-0114-00 CAP CER SMD 220pF 50V 10% X7R C6174 C6182 C6150 C6191...
  • Page 79 TACT SWITCH S1001 11-007-0061-90 SW TACT 1P1T 50mA/12V VER H=5mm LUG FUNG RCA JACKS M1005 M1006 M1007 M1008 15-003-0034-90 RCA JACK 1 ORANGE PCB MOUNT GOLD W/SHIELD SMD ICS U1020 01-004-0056-90 IC VOLT REG. LOW DROPOUT 3.3V 1A SOT-223 LM1117S-3.3 U1034 01-004-0061-90 IC VOLT REG LOW DROPOUT 5.0V 1A...
  • Page 80 R1066 R1077 R1080-1081 R1084-1085 02-007-0157-00 RES SMD 10K OHM 0603 1% R1088-1089 R1092 R1166 R1169 R1196 R1223-1224 R1230 R1236-1237 R1259-1264 R1267 R1268 R1270 R1271 R1186 R1114 R1123 R1129 R1139 R1149 R1159 R1098 R1107 R1176 R1298 R1301 R1191 R1200 R1205 R1206 R1188 R1192 R1197 R1201 R1336 R1249-1253*AH 02-007-0267-00...
  • Page 81 C1175-1176 C1182-1183 C1189-1190 03-009-0104-00 CAP CER SMD 2700pF 50V 10% X7R C1196-1197 C1203-1204 C1210-1211 0603 C1217-1218 C1224-1225 C1249-1250 C1259-1260 C1042 C1230-1231 C1233-1234 C1236 03-009-0111-00 CAP CER SMD 100pF 50V 10% X7R C1238 C1241 C1300-1302 0603 C1044 C1063 C1065 03-009-0112-00 CAP CER SMD 1nF 50V 10% X7R 0603 C1001 C1004-1005 C1008-1009 C1012 03-009-0113-00 CAP CER SMD 10nF 50V 10% X7R 0603...
  • Page 82 SMD INDUCTORS L1018*AH 07-007-0017-90 IND 2.7uH SMD 10% 0805 CI201209- 2R7KG L1020 L1021 L1022 L1023 07-007-0035-90 IND SMD 1.5uH 10% 0805 CI2012-1R5K L1001-1004 10-009-0005-90 DIGITAL AUDIO INTERFACE SIGNAL TRANSFORMER ER9.5 225uH RA070228-1 SMD OSCILLATORS X1001C 14-004-0020-90 CRYSTAL OSCILLATOR 24.576MHz 3.3V 50ppm 30pF X1003*AH 14-004-0024-90 CRYSTAL OSCILLATOR 45.1584MHz...
  • Page 83 SMD DIODES D4101-4106 04-006-0021-90 SMD Diode LL4148 SOD80 SMD TRANSISTORS Q4102,Q4104,Q4107-4108,Q4113-4114 05-004-0017-00 SMD Transistor 2SC4695 NPN SOT-23 Q4101,Q4103,Q4109-4112,Q4118 05-004-0034-90 TRANSISTOR 2SA1037AKS PNP HFE 270-560 140MHz SMD SMT3 Q4105-4106,Q4115-4116 05-004-0036-90 TRANSISTOR SS NPN HFE20 250MHz DTC123EKAT146 KEYBOARD PCB ASSEMBLY 50-922-0765-90 T765/T775/T785 KEYBOARD ASSY CAPACITORS C2208 03-002-0137-00...
  • Page 84 C2212 03-009-0119-00 CAP CER SMD 4.7nF 50V 10% X7R 0603 SMD DIODES D2204-2209 04-006-0021-90 SMD Diode LL4148 SOD80 D2203 04-007-0031-00 DIODE ZENER SMD 6.2V 500mW 5% SOD123 MMSZ5234B SMD TRANSISTORS Q2201 05-004-0030-90 XTR 2SD1918 NPN POWER 160V/1.5A 80MHz HFE 120-390 SMD Q2202-Q2204 Q2205 Q2206 05-004-0037-90 TRANSISTOR SS PNP HFE30 250MHz...
  • Page 85 R6501 R6504 R6512 R6515 R6601 02-007-0288-00 RES SMD 0 OHM 5% 1/16W 0603 R6604 R6612 R6615, R6701 R6704 R6712 R6715, R6801 R6804 R6812 R6815,R6955 - R6962,R6940 R6945-6946 R6927-6928 R6933-6934 R6951 R6939 R6723 R6734 R6551 R6552 R6651 R6652 R6751 R6752 R6851 R6980-6985 02-007-0292-00 RES SMD 2.2K OHM 1% 1/16W 0603...
  • Page 86 SMD DIODES D6901-6904 04-006-0019-00 DIODE RECT 1A/400V DO-214AC SMD GS1G M4 GS1G D6910-6915 04-006-0021-90 SMD DIODE LL4148 SOD80 D6501-6504 D6601-6604 D6701-6704 04-007-0039-90 DIODE ZENER SMD 12V 500mW 5% D6801-6804 SOD123 MM1Z12 SMD TRANSISTORS Q6501-6504 Q6506-6509 Q6601-6604 05-004-0017-00 SMD Transistor 2SC4695 NPN SOT-23 Q6606-6609 Q6701-6704 Q6706-6709 Q6801-6804 Q6806-6807 Q6505 Q6510 Q6605 Q6610 Q6705...
  • Page 87 SMD ICS U8201 01-014-0041-00 IC AUDIO LOW NOISE OP-AMP SMD NJM5532M SMD RESISTORS R8209 R8203 02-007-0042-00 RES SMD 1K OHM 0603 5% R8225 R8230 02-007-0139-00 RES SMD 4.7K OHM 0603 5% R8206 R8212 R8215 R8218 02-007-0157-00 RES SMD 10K OHM 0603 1% R8201-8202 R8207-8208 02-007-0267-00 RES SMD 100K OHM 5% 1/16W 0603...
  • Page 88 DB9 CONNECTOR M2305 16-002-0200-90 DB9 FEMALE CONNECTOR PCB MOUNT RIGHT ANGLE COILS L2301-L2303 07-002-0154-90 COIL 15uH ±30% W/BEAD RH3.5 X 1.3 X 3-4.5Ts-A SMD ICS U2304*C,CT 01-004-0056-90 IC VOLT REG. LOW DROPOUT 3.3V 1A SOT-223 LM1117S-3.3 U2303 01-012-0075-90 IC 74HC86D LOGIC QUAD 2-INPUT EXCLUSIVE-OR GATE SMD 14 PINS SOIC D2308*AH...
  • Page 89 JUMPERS JMP3 JMP6 JMP14 JMP19-21 17-016-0077-00 Jumper wire Dia. 0.5mm L=52.0mm JMP34 JMP41-42 JMP1-2 JMP4-5 JMP7-13 JMP15-18 17-016-0080-90 Jumper Wire Dia. 0.5mm For L Smaller JMP22-33 JMP35-40 JMP43-44 than 14mm VIDEO 6 BOARD PCB ASSEMBLY 50-931-0765-90 T765/T775/T785 VIDEO-6 ASSY CAPACITORS C9309 C9307 C9315 C9320-9321 03-002-0073-00 E CAP 22uF/16VP=1.5 D=4.2 H=7.6...
  • Page 90 C9326 03-009-0113-00 CAP CER SMD 10nF 50V 10% X7R 0603 C9313 03-009-0114-00 CAP CER SMD 220pF 50V 10% X7R 0603 C9322 03-009-0116-00 CAP CER SMD 33pF 50V 10% X7R 0603 C9325 03-009-0127-00 CAP CER SMD 1uF 16V +80/-20% Y5V 0805 SMD TRANSISTORS Q9303-9304 Q9305 05-004-0017-00...
  • Page 91 01-010-0026-90 IC XC9572XL-5TQ100C IN-SYSTEM PROGRAMMABLE CPLD SMD 100 PIN TQFP U2 U11 U16 U24 U32 01-012-0076-90 IC CM1213 8-Channel Low Capacitance ESD Protection Arrays CM1213-08MR 01-012-0077-90 IC PCA9517 LEVEL TRANSLATING I2C- BUS REPEATER PCA9517D SMD SO8 U10 U201 01-012-0078-90 IC PCF8574 REMOTE 8-BIT I/O EX PANDER FOR I2C-BUS PCF8574T SMD SO16 U9 U13...
  • Page 92 R50 R53 R60 R72 02-007-0329-00 RES SMD 499 OHM 1% 1/10W 0805 R84 R92 R93 02-007-0332-00 RES SMD 604 OHM 1% 1/10W 0805 R29 R30 R35 R36 R37 R49 R41 R44 R59 02-007-0336-00 RES SMD 75 OHM 1% 1/10W 0805 R56 R57 R71 R63 R65 R75 R86 R88 R10 R12 R17 R19 R21 R33 R34 R45 R47 02-007-0340-00 RES SMD 1 OHM 5% 1/10W 0805...
  • Page 93 C6 C8 03-009-0154-00 SMD E CAP 220uF/16V ±20% LOW IMPEDANCE D CASE 6.3 X 7.7 03-009-0165-00 CAP CER SMD 1000pF 100V +/-5% NPO 0805 C200 03-009-0186-00 CAP CER SMD 8200pF 50V 10% C0G 0805 SMD DIODES D1 D2 04-001-0049-90 DIODE SHKY 1A/40V DO-213AB SM5819 SMD TRANSISTORS Q1-Q5 05-004-0035-90...
  • Page 94 R2001 R2007 02-007-0267-00 RES SMD 100K OHM 5% 1/16W 0603 R2003 R2010 R2012 R2015-2016*AH 02-007-0288-00 RES SMD 0 OHM 5% 1/16W 0603 R2017-2018*C CT R2024 R2041 R2042 R2031-R2038 02-007-0292-00 RES SMD 2.2K OHM 1% 1/16W 0603 SMD CAPACITORS C2002-2003 C2006-2007 C2010 C2019 03-009-0075-00 CAP CER SMD 0.1uF 50V 20% Y5V 0603 C2022 C2023 C2026 C2028 C2030...

  • Page 95: Ic Block Diagram

    IC BLOCK DIAGRAM MAINBOARD LM1117 (U1020 in DSP, U2008 in MCU, VR201, VR2, VR6, U7 in HDMI, U1034 in DSP) AME8530 U2006 M30280 (U2001)
  • Page 96 ATMEGA48-20 (U2007) AT24C16 (U2002)
  • Page 97 74HC00D (U2009) HEF4094BT (U2201, U4107 in Composite, U1007, U1008 in DSP, U6901 in Pre-Out, U5501 in AMP-L, U6003 in Volume) 74HC132 (U2005)
  • Page 98 D708E0001BRFP266 (U1001) SST39VF800 (U1004)
  • Page 99 K4S641632K (U1003) 74HC251D (U1005)
  • Page 100 74HCU04D (U1018, U1019) SN74LVC245 (U1010, U1022) TL5001CD (U1011)
  • Page 101 SN74HCT245 (U1009) SN74LVC257AD (U1033, U1035, U1036)
  • Page 102 NJM5532M (U1023, U1027-1031, U9301 in F-input, U8201 in ISC, U6501, U6601, U6701, U6801 in Pre-Out, U6004-6007, U6018 in Volume) PCM1802 (U1017)
  • Page 103 TPS3103 (U1021) CS8416 (U1002)
  • Page 104 BU9450 (U1032) PCM1791A (U1012-1016)
  • Page 105 HDMI XC9572XL (U20) CM1213-8 (U2, U11, U16, U24, U32, D2308 in Trigger)
  • Page 106 PCA9517 (U5) PCF8574 (U10, U201)
  • Page 107 PI3B16233 (U9, U13) SN74AHCT244 (U200)
  • Page 108 AD8061 (U18, U22, U26) AD8063 (U17, U21, U25, U27, U29, U30)
  • Page 109 MC141585DW (U19)
  • Page 110 TMDS341 (U15, U23)
  • Page 111 ADV7320 (U28)
  • Page 112 ADV7403 (U12) AD9388 (U14)
  • Page 113 AD9389B (U31) LM2575 (VR3, VR4)
  • Page 114 LM1086 (VR200) Power Amp – L AS358 (U5802, U5401 in AMP-R)
  • Page 115 LM35DT (U5803, U5402 in AMP-R) Composite / S-Video 74HC4051D (U4103-4106) BA7660FS (U4101-4102, U4001 in Component)
  • Page 116 Component 74HC4052D (U4002-4003) LC78211 (U6009)
  • Page 117 Volume TPA6120A2DWP (U6008)
  • Page 118 R2S15205FP (U6001-6002)
  • Page 119 Trigger 74HC86D (U2303) ST232BDR (U2301) TPS2011A (U2302)
  • Page 120 EXPLODED VIEW - A...

  • Page 121: Exploded View

    EXPLODED VIEW - B...

  • Page 122: Exploded View Parts List

    EXPLODED VIEW PARTS LIST ITEM PART NO. DESC. 08-002-0067-90 FAN DC 60x20mm 12V 0.18A 3800RPM DF126020SL 2 L=430mm w/ 2.5P CONNECTOR (RoHS) 08-002-0068-90 FAN DC 60x20mm 12V 0.18A 3800RPM DF126020SL 3 L=330mm w/ 2.5P CONNECTOR (RoHS) 10-005-0272-90 TRANSFORMER PW TOROIDAL 120V T775 AT4.531.0098 TA-1000 (RoHS) [FOR 120V VERSION] 10-005-0273-90 TRANSFORMER PW TOROIDAL 230V T775...
  • Page 123 23-232-0010-92 BOTTOM CABINET T775 (RoHS) 23-236-0007-92 TOP COVER T775 (NEW PAINTED PPG GREY) (RoHS) [FOR GRAPHITE VERSION] 23-236-0016-90 TOP COVER T775 (PAINTED NAD SILVER) (RoHS) [FOR TITANIUM VERSION] 23-237-0015-90 PANEL - SVIDEO T775 (RoHS) 23-237-0016-90 PANEL - VOLUME T775 (RoHS)
  • Page 124 23-237-0007-92 PLASTIC INNER PANEL T775 GRAPHITE (RoHS) [FOR GRAPHITE VERSION] 23-237-0008-92 PLASTIC INNER PANEL T775 TITANIUM (RoHS) [FOR TITANIUM VERSION] 23-237-0057-90 PANEL - COMPONENT VIDEO / iPOD T175/785 (RoHS) 24-031-0007-90 STATIC COVER T775 (PET)(RoHS) 25-005-0118-90 HEX SPACER AF5.5 H8+6 (RoHS) 25-005-0124-90 HEX SPACER AF5.5 H9.5+6 (RoHS) 25-005-0122-90...
  • Page 125 25-024-0322-90 DUAL BUTTON T765 GRAPHITE (RoHS) [FOR GRAPHITE VERSION] 25-024-0323-90 DUAL BUTTON T765 TITANIUM (RoHS) [FOR TITANIUM VERSION] 25-024-0324-90 VIDEO COVER T765 GRAPHITE (RoHS) [FOR GRAPHITE VERSION] 25-024-0325-90 VIDEO COVER T765 TITANIUM (RoHS) [FOR TITANIUM VERSION] 25-024-0326-90 RUBBER BRACKET T765 (MOLD BLACK) (RoHS) 25-024-0330-90 FAN RUBBER (RoHS) 16-004-0888-90...
  • Page 126 Enlarged in detail on next page...
  • Page 127 T775 Power amplifier components (single channel) Part Number Description 02-005-0063-90 RES WW 0.22 OHM 5% 5W 02-007-0328-90 RES SMD 47 OHM 5% 1/2W 03-009-0137-90 CAP ELEC SMD 100uF 50V +/-20% 03-009-0141-90 CAP ELEC SMD 2.2uF 50V +/-20% 03-009-0144-90 CAP ELEC SMD 470uF 16V +/-20% Components in the red boxes are 03-009-0145-90 CAP ELEC SMD 47uF 100V +/-20% 04-006-0021-90 SMD DIODE LL4148 SOD80...

  • Page 128: Packing Diagram

    T775 OWNER’S MANUAL GB/F/D/NL W/WEEE (RoHS) 24-004-1959-90 T775 OWNER’S MANUAL E/I/P/S W/WEEE (RoHS) 24-004-2098-90 T775 QUICK START MANUAL A3 SIZE (RoHS) 28-008-0004-92 REMOTE CONTROLLER NAD HTR-3 (RoHS) 24-006-0721-90 POLYFOAM TOP/BOTTOM T775 (RoHS) 24-003-0130-90 POLYBAG MAIN UNIT (RoHS) 24-003-0131-90 PROTECTIVE COVER (RoHS)
  • Page 129 NAD ELECTRONICS LTD LONDON...

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