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This service manual was determinant to enable to fix my Alpine Amplifier. I am pleased with my purchase. For a 5 star rating I would like to see a higher resolution scan of the printed circuit board lay-out because the gray scale grafics was dificult to see. Also some schematic diagrams were scanned at a slight angle. Never the less, it had all information I needed to troubleshoot and service my equipment.
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Complete manual, the good quality of reproduction allows enlarged print-out of the schematic diagram in the size it probably had in the original print edition and which is necessary for practical use.
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The service manual was complete and the components on the drawings very good visible.
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downloaded next day , manual is very helpful , fast and easy
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This Service Manual was exactly what I needed to repair my Philips TV. The purchase was convenient and I received the manual at the same day I paid for it.
HDS-X3400 2-6. Replacing the Main Parts
2-6. Replacing the Main Parts
w Be sure to turn off the power switch and disconnect the power cord from the outlet before starting any work. Replacing with the power on may result in electric shock or damage to boards.
2-6-2. Replacing the Fan
(Left fan) Removal 1. Loosen the attaching screw, and then pull out the fan assembly while holding the attaching screw. 2. Disconnect the fan harness from the connector (CN1) of the HN-271 board. 3. Remove the two screws (P4 x 6), and then remove the fan.
Fan assembly
2-6-1. Replacing the Power Unit
Removal 1. Remove the front panel. (Refer to Section 2-1.) 2. Remove the two screws, and then pull out the switching regulator while holding the handle.
Attaching screw
Fan harness Air flow CN1
PSW 3x6 Switching regulator Handle PSW3 x 6
HN-271 Fan 2 P4 x 6
Installation Attach a new fan in reverse order of the removal procedure. (Right fan) Removal 1. Loosen the two attaching screws, and then pull out the CN assembly while holding the attaching screws. 2. Loosen the wiring terminal drop-safe on the CN-1888 board, and then disconnect the fan connector from the connector (CN6). 3. Remove the two screws (P4 x 6), and then remove the fan.
Installation 1. Attach a new switching regulator in reverse order of the removal procedure. 2. Adjust the power supply voltage. (Refer to Section 26-3.) c If installation of the power supply unit is incomplete, the contact resistance of the connector increases and can cause damage to parts or smoke. Be sure to tighten the fixing screws of the power supply unit. Do not turn on the main power before the fixing screws have been tightened securely.
Air flow Fan harness CN6 Fan 1 P4 x 6
CN-1888 CN assembly
Attaching screws Wiring terminal drop-safe
Installation Attach a new fan in reverse order of the removal procedure.
HDS-X3400/X3600/X3700
2-7
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