Sony mdr if 630 r service manual
This is the 17 pages manual for sony mdr if 630 r service manual.
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Extracted text from sony mdr if 630 r service manual (Ocr-read)
Page 1
- 2 - SECTION 1 GENERAL This section is extracted from instruction manual. Notes on chip component replacement - Never reuse a disconnected chip component. - Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing - Keep the temperature of soldering iron around 270˚C during repairing. - Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). - Be careful not to apply force on the conductor when soldering or unsoldering. Check the remaining power of the headphone batteries Pull up the suspender, and check that the headphones power indicator lights in red. You can now use the headphones. Charge the batteries or install new batteries, if the power indicator light is weak or turned off and the sound become distorted or has a lot of noise. POWER 3 Adjust the volume. High Low Audio mode switch Depress the audio mode switch (VOICE mode) to emphasize the human voice. Press to release it (NORMAL mode) for normal tone quality. Audio mode switch NORMAL VOICE
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- 3 - SECTION 2 DISASSEMBLY 2-2. RX BASE BOARD Note :Follow the disassembly procedure in the numerical order given. - The equipment can be removed using the following procedure. Driver (R side) RX BASE board Driver (L side) RX CHR board Set Lid (R), holder Hanger (R) RX SW board, Holder (R) Lid (L), holder Hanger (L) Holder (L) 2-1. DRIVER (R SIDE) Driver (R side) Driver (R side) From RX BASE board 2 Four screws (+P2 × 6)Solder the each lead wires directly to the position as shown while being cautions of colors Precaution for installation 1 Pad, ear 3 Plate (R) assy, front 4 Remove the two solderings Natural Red from RX SW board (–) (natural) Head band (rear) (natural) Driver (natural) Driver (red)Head band (front) (green) Head band (front) (natural) Head band (front) (natural) Head band (front) (black)Head band (rear) (red) from RX SW board (+) (black) RX BASE boardRX BASE board 3 Button, sound selection 4 Knob, volume 1 Two screws (+P2 × 6) 2 Remove the ten solderings Solder the each lead wires directly to the position as shown while being cautions of colors Precaution for installation