Nad T 514 AH Service Manual

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CONTENTS SECTION 1 . . . .SUMMARY SECTION 2 . . . .CABINET & MAIN CHASSIS SECTION 3 . . . .ELECTRICAL SECTION 4 . . . .MECHANISM SECTION 5 . . . .REPLACEMENT PARTS LIST

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SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS ........................... 1-3 SERVICING PRECAUTIONS ...................................................\A............................................... 1-4 - General Servicing Precautions - Insulation Checking Prodedure - Electrostatically Sensitive Devices SPECIFICATIONS ...................................................\A...................................................\A................ 1-5 1-2

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3-18 10. TRACKING CONTROL RELATED SIGNAL(System checking) FIG 10-1 (DVD) FIG 10-2 (CD)

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4-2 DECK MECHANISM DISASSEMBLY 1. Main Base (Fig. 4-1) 1-1. Clamp Assembly Disc 1) Place the Clamp Assembly Disc as Fig. (A) 2) Lift up the Clamp Assembly Disc in direction of arrow(A). 3) Separate the Clamp Assembly Disc from the Holder Clamp. 1-1-1. Plate Clamp 1) Turn the Plate Clamp to counterclockwise direction and then lift up the Plate Clamp. 1-1-2. Magnet Clamp 1-1-3. Clamp Upper 2. Tray Disc (Fig. 4-2) 1) Insert and push a Driver in the emergency eject hole(A) at the right side, or put the Driver on the Lever(B) of the Gear Emergency and pull the Lever(B) in direction of arrow so that the Tray Disc is ejected about 15~20mm. 2) Pull the Tray Disc until it is separated from the Base Main completely. Fig. 4-1 Fig. 4-2

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4-4 DECK MECHANISM DISASSEMBLY 5. Frame Assembly Up/Down (Fig. 4-4) Put the Base Main face down(Bottom Side) 1) Release the screw(S4) 2) Unlock the Locking Tab(L3) in direction of arrow and then lift up the Frame Assembly Up/Down to separate it from the Base Main. - When reassembling move the Guide Up/Down in direction of arrow(C) until it is positioned as Fig.(C). - When reassembling insert (A) portion of the Frame Assembly Up/Down in the (B) portion of the Guide Up/Down as Fig.(B) 6. Belt Loading(Fig. 4-4) Put the Base Main on original position(Top Side) 7. Gear pulley (Fig. 4-4) 1) Unlock the Locking Tab(L4) in direction of arrow(B) and then separate the Gear Pulley from the Base Main. 8. Gear Loading (Fig. 4-4) 9. Guide Up/Down (Fig. 4-4) 1) Move the Guide Up/Down in direction of arrow(A) as Fig.(A) 2) Push the Locking Tab(L5) down and then lift up the Guide Up/Down to separate it from the Base Main. When reassembling place the Guide Up/Down as Fig.(C) and move it in direction arrow(B) until it is locked by the Locking Tab(L5). And confirm the Guide Up/Down as Fig.(A) 10. PWB Assembly Loading (Fig. 4-4) Put the Base Main face down(Bottom Side) 1) Release 1 Screws(S5) 2) Unlock the Loading Motor (C2) from the Hook (H1) on the Base Main. 3) Unlock 2 Locking Tabs(L6) and separate the PWB Assembly Loading from the Base Main. 11. Base Main(Fig. 4-4) Note Note NoteNote Note Fig. 4-4