ADJUSTMENTS
E-F BALANCE ADJUSTMENT
1. Connect oscilloscope to test point TP502 and TP503
on CD PCB.
Traverse Waveform
2. Press power switch on.
3. Put test disc(TCD-781) in and press play button then A
pause button.0V
4. Pressing Fast Forward button, adjust RV502 to get B
that the oscilloscope waveform is symmetrical on the
bottom in relation to 0V, and check this level.
* Design and specifications may be subject to change without notice.
3. TAPE SECTION
Output Level
MeasurementInput Point
PointScope
47 kohm
R-CH
VTVM
Input Level
Measurement
Point
L-CH
47 kohm
Test Tape be used
TapeContents Use
MTT-111N3 KHzTape Speed Adjustment
MTT-114N10 KHzHead Azimuth Adjustment
MTT-5511BlankRecord Frequency Property
HEAD ADJUSTMENT (AZIMUTH)
1. 10KHz test tape(example: MTT-114N) must be used for this adjustment.
2. Connect to VTVM or oscilloscope to the headphone jack or speaker terminal.
3. Press the play button.
4. Adjust the azimuth by using a screw driver to maintain the max. L&R output voltage.
5. Adjust tape A(1), tape B(2) respectively, Please secure the azimuth position by using locking paint.
RECORDING BIAS OSCILLATOR FREQUENCY ADJUSTMENT
1. Connect the frequency counter to TP603, GND.
2. Press the REC button.
3. Adjust L603 to obtain 80 KHz?100Hz
5 |
ACEC
