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3
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
20-001-0072-90
FUSE TIME-LAG 6.3A 250VAC
5X20mm
TSD
UL/CSA/VDE/CCC
WALTER
F8001*C,CT
20-001-0072-90
FUSE TIME-LAG 6.3A 250VAC
5X20mm
TSD
UL/CSA/VDE/CCC
WALTER
F8002*AH
20-001-0076-90
FUSE 1.6A 250V TIME LAG LBC
5X20mm
TSD
UL/CSA/VDE/SEMKO
F8002*C,CT
20-001-0069-90
FUSE TIME-LAG 800mA 250V 5x20mm
TSD
UL/CSA/VDE/CCC
WALTER
5X20mm
VDE/UL/CSA
5T
NOTE:
<*AH > : USA, CANADIAN MODEL ONLY.
<*C, *CT >
: EUROPEAN MODEL ONLY.
2. Safety check out
(Only U.S.A. model)
Parts marked with the symbol
are critical with regard to the risk of fire and electric shock.
CONTENTS
DESCRIPTION
PAGE
SPECIFICATIONS ..............................................................................................................................4 - 5
REAR PANEL / FRONT PANEL VIEW ...................................................................................................6
DISASSEMBLY INSTRUCTIONS ...........................................................................................................7
WIRING DIAGRAM ............................................................................................................................8 - 9
BLOCK DIAGRAM.................................................................................................................................10
SPECIAL FUNCTION ..........................................................................................................................11
DETAILS & WAVEFORMS ON SYSTEM & TEST & DEBUGGING................................................11-12
ADJUSTMENT POINTS DIAGRAM / AMPLIFIER ADJUSTMENT .......................................................13
PCB LAYOUT ..................................................................................................................................14- 28
SCHEMATIC DIAGRAM ...................................................................................................................29-47
ELECTRICAL PARTS LIST ..............................................................................................................48-67
IC BLOCK DIAGRAM .......................................................................................................................68-86
EXPLODED VIEW ............................................................................................................................87-88
EXPLODED VIEW PARTS LIST ......................................................................................................89-91
SINGLE AMPLIFIER CHANNEL REPAIR KIT .................................................................................92-93
PACKING DIAGRAM .............................................................................................................................9
4
Содержание T755
Страница 1: ...NAD SERVICE MANUAL T 755 T 755 Surround Sound Receiver Surround Sound Receiver DRAFT DATE AUGUST 2009 ...
Страница 8: ...8 WIRING DIAGRAM ...
Страница 10: ...10 BLOCK DIAGRAM ...
Страница 14: ...14 PCB LAYOUT POWER AMPLIFIER FRONT AMP BOARD COPPER SIDE ...
Страница 15: ...15 FRONT AMP BOARD COMPONENT SIDE ...
Страница 16: ...16 SURROUND AMP BOARD COPPER SIDE ...
Страница 17: ...17 SURROUND AMP BOARD COMPONENT SIDE ...
Страница 18: ...18 DSP BOARD COPPER SIDE ...
Страница 19: ...19 DSP BOARD COMPONENT SIDE ...
Страница 20: ...20 KEY BOARD COMPONENT SIDE KEY BOARD COPPER SIDE ...
Страница 21: ...21 F VIDEO BOARD COPPER SIDE F VIDEO BOARD COMPONENT SIDE ...
Страница 22: ...22 MAIN BOARD COMPONENT SIDE ...
Страница 23: ...23 MAIN BOARD COPPER SIDE ...
Страница 24: ...24 TRIGGER BOARD COMPONENT SIDE TRIGGER BOARD COPPER SIDE SPEAKER BOARD COMPONENT SIDE ...
Страница 25: ...25 COMPONENT BOARD COMPONENT SIDE COMPONENT BOARD COPPER SIDE ...
Страница 26: ...26 HDMI BOARD COPPER SIDE ...
Страница 27: ...27 HDMI BOARD COMPONENT SIDE ...
Страница 28: ...28 PSU STD BOARD COMPONENT SIDE CONNECTOR 3 BOARD COMPONENT SIDE ...
Страница 69: ...69 ATMEGA48 20 U2007 AT24C16 U2002 ...
Страница 72: ...72 DSP D707E0001BRFP250 U1001 PCM1609A U1034 ...
Страница 73: ...73 PCM1742KE U1035 M61545 U6002 ...
Страница 74: ...74 74HC157D U1033 SST39VF800 U1004 ...
Страница 75: ...75 K4S641632K U1003 74HC251D U1005 ...
Страница 76: ...76 74HCU04D U1018 U1019 SN74LVC245 U1010 U1022 in DSP U4518 in Component TL5001CD U1011 ...
Страница 77: ...77 SN74HCT245 U1009 PCM1802 U1017 ...
Страница 78: ...78 TPS3103 U1021 CS8416 U1002 ...
Страница 79: ...79 BU9450 U1032 R2S15205FP U6001 ...
Страница 80: ...80 HDMI CM1213 8 D4301 4304 in HDMI D2308 in Trigger TMDS U15 U23 ...
Страница 81: ...81 COMPONENT ATtiny261 U4520 ...
Страница 82: ...82 TVP5146PFP U4507 SAA7128 U4508 ...
Страница 83: ...83 74HC4052D U4002 4003 PCA9517 U4513 ...
Страница 84: ...84 SN74AHCT244 U4517 MC141585DW U19 ...
Страница 85: ...85 Power Amp F AS358 U5302 LM35DT U5303 ...
Страница 86: ...86 Trigger 74HC86D U2303 ST232BDR U2301 TPS2011A U2302 ...
Страница 87: ...EXPLODED VIEW A ...
Страница 88: ...88 EXPLODED VIEW B ...
Страница 92: ...Enlarged in detail on the next page 92 ...
Страница 95: ...93 SERVICE MANUAL T755 Surround Sound Receiver NAD ELECTRONICS LTD LONDON ...