ADJUSTMENT PROCEDURE
CLOCK FREQUENCY
DR-UN7
GND
32.7682 kHz +/- 0.15Hz
FREQ
TP01
GND
C7115
[When]
1. Exchange Pre-amp. & DSP PC board (NADG-8692).
2. Exchange crystal (X7012).
[Procedure]
1. Connect the frequency counter to the test point
TP01
and
GND
on Pre-amp. & DSP PC board (NADG-8692).
Refer to
<Fig-1>
2. Press and hold down the
TIMER
button and then connect the power cord into a wall outlet.
3. Adjust the trimming capacitor
C7115
on NADG-8692 so that the reading of frequency counter becomes
following specification.
Specification : 32.7682 kHz +/- 0.15 Hz.
4. Disconnect the power cord from a wall outlet and disconnect the frequency counter from test point.
<Fig-1>
Test point and Adjustment point
Frequency counter
Pre-amp. & DSP PC board
(NADG-8692).
--- Right side view ---
Front side
Test point
Adjustment point
Trimming capacitor
