TX-2100
ADJUSTMENT AND CONFIRMATION PROCEDURES 2
3. Confirmation of Current detection circuit
Set the unit to "TEST-1 00".
Connect the differentiating circuit and apply the 200Hz square signal to CD terminal
of each channel.
Adjust the attenuator or Volume so that the output level becomes 35V p-p.
Confirm that the speaker relay does not turn OFF when a 2.0 ohm load is connected.
Confirm that "Protect" indicator lights on when a 0.5 ohm load is connected.
Caution:Don't continue more than 3 seconds.
CR
OSCILLATOR
DIFFEREN-
TIATING
CIRCUIT
ATTENU-
ATOR
UNIT
SPEAKER
TERMINAL A
CD
INPUT
INPUT
OUT-
PUT
3.3k
10k
1SS133
3.3k
GND
0.01 F
0.1 F
OSCILLO-
SCOPE
Differentiating Circuit
200Hz
SQUARE
35Vp-p
Test Mode
1. Turn POWER button on.
2. Press and hold down CD button, then press DIRECT TUNING button.
3. After "TEST-" on the FL tube is displayed, press CD button to set the unit to the test mode of FL tube.
The segments of odd
number light on .
All segments
light on.
"GOOD-BYE "
light on.
Test mode of FL tube
PHONO
CD
The segments of even
number light on .
