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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
Part Number
Description
F751*AH
33-0160001-00-48
Fuse 8A 250V Time Lag 5x20 MM UL/CSA
F751*C
33-0131002-00-48
Fuse 5A 250V Time Lag 5x20 MM SEMKO/VDE
F752*AH
33-0111006 -00-48
Fuse 1.6A 250V Time Lag 5x20 MM
UL/CSA/VDE/SEMKO
F752*C
33-0151006 -00-48
Fuse 800mA 250V Time Lag 5x20 MM
UL/CSA/VDE/SEMKO
NOTE:
<*AH > : USA, CANADIAN MODEL ONLY.
<*C >
: EUROPEAN MODEL ONLY.
2. Safety 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
BLOCK DIAGRAM ................................................................................................................................ 9
ADJUSTMENT POINTS DIAGRAM / AMPLIFIER ADJUSTMENT ..................................................... 10
PCB LAYOUT ............................................................................................................................... 11 - 23
SCHEMATIC DIAGRAM .............................................................................................................. 24 - 36
IC BLOCK DIAGRAM ................................................................................................................... 37 - 45
EXPLODED VIEW .............................................................................................................................. 46
EXPLODED VIEW PARTS LIST .................................................................................................. 47 - 48
ELECTRICAL PARTS LIST .......................................................................................................... 49 - 58
PACKING DIAGRAM .......................................................................................................................... 59
Parts marked with the symbol
are critical with regard to the risk of fire and electric shock.
Replace only with parts recommended by the manufacturer.
Содержание T752
Страница 2: ...2 SAFETY INFORMATION ...
Страница 13: ...11 PCB LAYOUT AUDIO BOARD COMPONENT SIDE AUDIO BOARD COPPER SIDE ...
Страница 15: ...13 DSP BOARD COPPER SIDE DSP BOARD COMPONENT SIDE ...
Страница 16: ...14 FRONT CENTER AMPLIFIER BOARD ...
Страница 17: ...15 SURROUND AMPLIFIER BOARD ...
Страница 18: ...16 KEY BOARD COMPONENT SIDE KEY BOARD COPPER SIDE ...
Страница 19: ...17 MAIN BOARD ...
Страница 20: ...18 MULTI CHANNEL BOARD ...
Страница 21: ...19 SECONDARY POWER SWITCH LED BOARD POWER SUPPLY BOARD STANDBY ...
Страница 22: ...20 PRE OUT BOARD ...
Страница 23: ...21 SPEAKER TERMINAL BOARD TRIGGER BOARD VIDEO 6 BOARD ...
Страница 24: ...22 S VIDEO BOARD COMPOSITE VIDEO BOARD COMPONENT SIDE COPPER SIDE ...
Страница 62: ...60 NOTES ...
Страница 63: ...60 SERVICE MANUAL T 752 AV SURROUND SOUND RECEIVER NAD ELECTRONICS LTD LONDON NAD 2002 ...