PIONEER A-307R/SDFXJ
Manual de Servicio

A-307R, A-207R

7 DIRECT button/indicator
Use this button when you do not wish to pass the output from input terminal equipment through the various frequency adjusting circuits (BASS, TREBLE, BALANCE, LOUDNESS). On : The indicator lights: The signals passing through the input terminals are reproduced without passing through the various frequency adjusting circuits. This results in flat, pure sound which is a more faithful reproduction of the input source. Off : The indicator goes off: The signal passes through the various frequency adjusting circuits.

0 BASS tone control
Use to adjust the low-frequency tone. The center position is the flat (normal) position. When turned to the right, low-frequency tones are emphasized; when turned to the left, low-frequency tones are de-emphasized.

NOTE:
This control does not operate when the DIRECT button is in the on position.

- SPEAKERS B (ON/OFF) button/indicator
Use this button to listen to the speaker system connected to SPEAKERS B terminals. ON : The indicator lights. Sound is heard from the speaker system. OFF : The indicator goes off. No sound is heard from the speaker system. Set to this position when listening with headphones.

8 LOUDNESS button/indicator
Use when listening at low volume levels. On : The indicator lights: Boosts low and high frequencies to give added punch to playback even at a low volume level. Off : The indicator goes off: Should normally be left in this position.

= PHONES jack
NOTE:
This button does not operate when the DIRECT button is in the on position. When using headphones, insert the plug into this jack.

NOTE:
The speakers continue to output sound even when headphones are plugged into this jack. To mute the sound from the speakers, press the SPEAKERS button to OFF.

9 TREBLE tone control
Use to adjust the high-frequency tone. The center position is the flat (normal) position. When turned to the right, highfrequency tones are emphasized; when turned to the left, highfrequency tones are de-emphasized.

~ SPEAKERS A (ON/OFF) button/indicator
Use this button to listen to the speaker system connected to SPEAKERS A terminals. ON : The indicator lights. Sound is heard from the speaker system. OFF : The indicator goes off. No sound is heard from the speaker system. Set to this position when listening with headphones.

NOTE:
This control does not operate when the DIRECT button is in the on position.

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