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Very helpful and complete manual. Maybe only one negative is schematics have sometimes unreadable name of the parts. But it's not a big problem.
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Excellent high quality schematics brought my old Heidelberg back to life. Fast download at a reasonable price. Thanks.
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This document is just what I was looking for, it´s very useful, it contains adjustment procedures for the final stage of the power amp and also
has a complete wiring diagram and description of the main semiconductors used in the design.
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Dear Sirs,
Thank you for the fast support, the manual does provide all necessary information to repair the radio. All schematics are in a good quality for reading.
The manual fits 100% to my requirements as a technican.
Kind regards Thomas
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the big video recorder format s-vhs many features delicate in loading system of the cassette. Such machines are no longer manufactured, it would be too expensive.
A-209R, A-209
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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