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NAD T 973 Wiring Diagram

Seven channel amplifier
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T 973
Seven Channel Amplifier
PRELIMINARY SCHEMATICS
ISSUE DATE: May 2004

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Summary of Contents for NAD T 973

  • Page 1 T 973 Seven Channel Amplifier PRELIMINARY SCHEMATICS ISSUE DATE: May 2004...
  • Page 2 T 973 WIRING DIAGRAM...
  • Page 3 +62V_4A +62V_4B +62V_4 FAN1 DGND -62V_4A -62V_4B -62V_4 AGND4A AGND4B AGND4 FAN2 DGND FAN3 DGND +62V_3 +62V_3A +62V_3B -62V_3 -62V_3A -62V_3B AGND6 AGND6A AGND6B...
  • Page 4 SCHEMATIC DIAGRAM (AMP POWER SUPPLY) F201 F201 T1AL/250V T1AL/250V BR201 BR201 +12VD DB104 DB104 IC201 IC201 LM7812 LM7812 C204 C204 /100V C206 C206 C208 C208 +18V +18V 100n 100n /100V /50V Q205 Q205 R213 R213 C202 C202 KSC2690AYS KSC2690AYS +68V F203 F203 +68V...
  • Page 5 W503 W503 JUMPER JUMPER W504 W504 JUMPER JUMPER W505 W505 JUMPER JUMPER...
  • Page 7 SCHEMATIC DIAGRAM (AMP SOFTCLIPPING AND AUTO TRIGGER) SCLED SCLED R405 R405 SCP_4 SCP_4 D401 D401 R401 R401 +62V_4 +62V_4 R409 R409 /1/2W C401 C401 /50V C402 C402 /50V D402 D402 R402 R402 R410 R410 -62V_4 -62V_4 /1/2W S401 S401 R406 R406 SCN_4 SCN_4...
  • Page 8 SCHEMATIC DIAGRAM (AMP 1/2) +12V -12V C143 C143 C141 C141 R10F R10F R10M R10M C125 C125 +68V 100n 100n /250V CNI5 CNI5 +68V 4.7K 4.7K 4.7u 4.7u /50V 47pF 47pF /1KV IC101 IC101 100n 100n /250V JRC79M12FA JRC79M12FA R109 R109 R110 R110 -18V...
  • Page 9 SCHEMATIC DIAGRAM(AMP 2/2) R112 R112 +12V 3.3K 3.3K F101 F101 D187 D187 R121 R121 +62V +62V T6.3AL/250V T6.3AL/250V 1N5404 1N5404 ISC COMPARATOR ISCTRIG R194 R194 -12V D182 D182 D183 D183 R170 R170 Q191 Q191 0.05 0.05 OFFSET 2SC4793 2SC4793 470K 470K BAV21 BAV21...

  • Page 11: Exploded View

    EXPLODED VIEW R007 0021 T001 0001 0009 R006 0001 R009 R011 0001 R010 R002 0014 0023 0001 C025 0013 C028 R003 C026 0012 0003 R005 R008 C029 0019 C034 C024 R004 C027 0020 0001 C033 C022 0005 0022 C023 C032 C021 0005 R001...

  • Page 12: Exploded View Parts List

    EXPLODED VIEW PARTS LIST REF.NO PART NO. DESCRIPTION Qty. REF.NO PART NO. DESCRIPTION Qty. C001 66-010001-0 Chassis F005 77-001007-1 Power Button Bezel C002 66-010006-0 Bracket 1 F006 76-003001-0 LED Lens C003 01-97306-00 Assembled Connection PCB C004 66-010008-0 Bracket 3 T001 66-010002-0 Top Cover C005...