Kenwood X-45 Service Manual page 17

X-45/85
CIRCUIT DESCRIPTION
Test Mode
Setting method :
°
The mode is set by shorting the above two pins with a
diode, then switch the power on.
To start during the power-on sequence, supply AC power
while pressing the STOP key of deck A.
Cancel method :
Press the pause key(for both decks) to cancel the test
mode.
Test mode operation
(1) Lamp display : All the indicators turn on 500 ms after
the power is switched on and remain on for 1500 ms.
(2) Mechanical switch display: Each switch state is
displayed on the level meter when the line muting
signal ison.
F.RECINH CrO, Metal R.RECINH
(—6dB) (-3dB) (0dB) (+6dB)
The level meter lights when the mechanical switch is
set toON. Deck A set to the left channel and deck B
to the right channel.
(3) Recording level: The recording level is changed to
three steps (—°odB++—22 dB+>0 dB) with the UP/
DOWN key.
(4) Twice speed recording: Recording is initiated at
HIGH speed with the H.CCRS key.
(5) Direct change: The REC key can be accepted from
the play mode.
(6) Record for 4 seconds :
REC
PLAY Recorded for 4 seconds,
rewound to the beginning,
then plays back (Can be
repeated.)
RWD .
(7) Playback speed switching : The tape is played back at
high speed in the forward direction by pressing the FF
key. (The Forward PLAY, Reverse PLAY, and RWD
keys cannot be used for playback.)
(8) Input level attenuation: The REC PAUSE mode is
entered by pressing the N : CCRS key. In this case, an
attenuator is activated so that the output is -4 dBm
when a signal is input. (When deck A stops and deck B
has a recordable tape)
(9) Auto bias: Enters the mode that is completed in half
(20 seconds) the usual time. (When deck A stops and
deck B has a recordable tape)
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