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简介

This guide involves further disassembly of the clock radio and will require using several different tools and techniques, including using a soldering iron. If you need help on how to use a soldering iron, consult this iFixit guide: 如何焊接和拆焊

  1. Find the battery compartment on the bottom of the clock radio. Using your thumb, push the compartment cover latch toward the battery. With the latch pushed in, pull the compartment cover upward to remove it..
    • Find the battery compartment on the bottom of the clock radio.

    • Using your thumb, push the compartment cover latch toward the battery.

    • With the latch pushed in, pull the compartment cover upward to remove it..

  2. Lift the battery from the compartment. Pull the battery up and gently disconnect it from the battery connector.
    • Lift the battery from the compartment.

    • Pull the battery up and gently disconnect it from the battery connector.

  3. Using a Phillips #00 Screwdriver, unscrew the six 12mm screws from around the bottom of the clock radio. Using a Phillips #00 Screwdriver, unscrew the six 12mm screws from around the bottom of the clock radio.
    • Using a Phillips #00 Screwdriver, unscrew the six 12mm screws from around the bottom of the clock radio.

  4. Gently pull the liquid crystal display (LCD) cover off.
    • Gently pull the liquid crystal display (LCD) cover off.

  5. Lift the top off. Two gray, plastic internal pieces will fall out when you do this; set them aside. Lift the top off. Two gray, plastic internal pieces will fall out when you do this; set them aside.
    • Lift the top off. Two gray, plastic internal pieces will fall out when you do this; set them aside.

  6. Using the wire cutters, carefully cut the plastic wire tie. Using the wire cutters, carefully cut the plastic wire tie.
    • Using the wire cutters, carefully cut the plastic wire tie.

  7. Follow the wires to find where they connect to the printed circuit board (PCB). At the area of connect, two spots will be marked "DC+ and "DC-." Apply the rubbing alcohol to the cotton swab end. Rub the end of the cotton swab on hot melt glue and wait for 30 seconds, then apply the alcohol to the hot melt glue again. Use the tweezers to grab the softened hot melt glue. Pull the hot melt glue off of the clock radio.
    • Follow the wires to find where they connect to the printed circuit board (PCB). At the area of connect, two spots will be marked "DC+ and "DC-."

    • Apply the rubbing alcohol to the cotton swab end. Rub the end of the cotton swab on hot melt glue and wait for 30 seconds, then apply the alcohol to the hot melt glue again.

    • Use the tweezers to grab the softened hot melt glue. Pull the hot melt glue off of the clock radio.

  8. Grip the speaker.
    • Grip the speaker.

    • Lift the speaker from the holder.

  9. Locate the two 6mm screws on the PCB. Using a Phillips #0 Screwdriver, unscrew the two 6 mm screws from the PCB.
    • Locate the two 6mm screws on the PCB.

    • Using a Phillips #0 Screwdriver, unscrew the two 6 mm screws from the PCB.

  10. Raise the PCB. Locate the LCD connection to the PCB.
    • Raise the PCB.

    • Locate the LCD connection to the PCB.

  11. Apply the rubbing alcohol to the cotton swab end. Rub the end on the hot melt glue and wait for 30 seconds, then apply the alcohol to the hot melt again. Using the tweezers, pull the hot melt glue from the LCD connector.
    • Apply the rubbing alcohol to the cotton swab end. Rub the end on the hot melt glue and wait for 30 seconds, then apply the alcohol to the hot melt again.

    • Using the tweezers, pull the hot melt glue from the LCD connector.

  12. Carefully apply the heated soldering iron on each of the 17 ribbon cable pin solders (first one as shown). Continue until the ribbon cable is detached.
    • Carefully apply the heated soldering iron on each of the 17 ribbon cable pin solders (first one as shown). Continue until the ribbon cable is detached.

结论

To reassemble your device, follow these instructions in reverse order.

2等其他人完成本指南。

Dominick Giguere

于2014年10月28日注册

848 信誉积分

创作了6篇指南

hello sir ,

i would like to know the voltage details of the transformer has two sec windings

120 v ac primary i want the sec voltage details

thank you

Ganesh kumar

ganeshbglr@gmail.com

ganeshbglr - 回复

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