– 34 –
6. REC/PB Sensitivity Check (DECK 2)
Settings : • Test tape : TTA–615 (CrO
2
)
• Test point : TP8 (Lch), TP9 (Rch)
• Input signal : 1kHz (0VU)
Method : Apply a 1kHz signal and REC mode. Then adjust
OSC attenuator so that the output level at the TP1
becomes 180mV. Record and play back the 1kHz signal
and check that the output is 0dB
±
1.5dB.
7. REC/PB Frequency Response Adjustment (DECK 2)
Settings :
• Test tape :
TTA–602 (Normal)
• Test point :
TP8 (Lch), TP9 (Rch)
• Input signal :
1kHz / 10kHz (–20VU)
• Adjustment location : SFR351 (Lch)
SFR352 (Rch)
Method :
Apply a 1kHz signal and REC mode. Then adjust OSC
attenuator so that the output level at the TP1
becomes 18mV. Record and play back the 1kHz and
10kHz signals and adjust SFRs so that the
output of the 10kHz signals becomes 0dB
±
0.5dB
with respect to that of the 1kHz signal.
8. REC/PB Frequency Response Check (DECK 2)
Settings : • Test tape : TTA–615 (CrO
2
)
• Test point : TP8 (Lch), TP9 (Rch)
• Input signal : 1kHz/10kHz(-20VU)
Method : Apply a 1kHz signal and REC mode. Then adjust
OSC attenuator so that the output level at the test point
becomes 18mV. Record and play back the 1kHz and
10kHz signals and check that the output is 0dB
±
2dB.
ADJUSTMENT 1 <DECK>
< DECK SECTION >
1. Tape Speed Adjustment (DECK 2)
Settings : • Test tape : TTA–100 (3kHz)
• Test point : TP8 (Lch), TP9 (Rch)
• Adjustment location : SFR1
Method : Play back the test tape and adjust SFR1 so that the
frequency counter reads 3000Hz
±
5Hz (FWD) and
±
45Hz (REV) with respect to forward speed.
2. Head Azimuth Adjustment (DECK 1, DECK 2)
Settings : • Test tape : TTA–330 (315/10kHz)
• Test point : TP8 (Lch), TP9 (Rch)
• Adjustment location : Head azimuth
adjustment screw
Method : Play back (FWD) the 10kHz signal of the test tape
and adjust screw so that the output becomes maximum.
Next, perform on REV PLAY mode.
3. PB Frequency Response Check (DECK 1, DECK 2)
Settings : • Test tape : TTA–330 (315/10kHz)
• Test point :TP8 (Lch), TP9 (Rch)
Method : Play back the 315Hz and 10kHz signals of the test
tape and check that the output ratio of the 10kHz
signal with respect to that of the 315Hz signal is
0dB
±
2dB.
4. PB Sensitivity Adjustment (DECK 1, DECK 2)
Settings :
• Test tape :
TTA–200 (400Hz)
• Test point :
TP8 (Lch), TP9 (Rch)
• Adjustment location : SFR301 (DECK 1, Lch)
SFR302 (DECK 1, Rch)
SFR303 (DECK 2, Lch)
SFR304 (DECK 2, Rch)
Method :
Play back the test tape and adjust SFRs so that the
output level of the test points becomes
245mV
±
10mV.
5. REC/PB Sensitivity Adjustment (DECK 2)
Settings :
• Test tape :
TTA–602 (Normal)
• Test point :
TP8 (Lch), TP9 (Rch)
• Input signal :
1kHz (0VU)
• Adjustment location : SFR305 (Lch)
SFR306 (Rch)
Method :
Apply a 1kHz signal and REC mode. Then adjust OSC
attenuator so that the output level at the test points
becomes 180mV. Record and play back the 1kHz and
and adjust SFRs so that the output level becomes
0dB
±
0.5dB.
All manuals and user guides at all-guides.com
Summary of Contents for NSX-T929
Page 15: ...15 SCHEMATIC DIAGRAM 1 MAIN 1 6 FUNCTION SECTION All manuals and user guides at all guides com...
Page 17: ...17 SCHEMATIC DIAGRAM 3 MAIN 3 6 AMP SECTION All manuals and user guides at all guides com...
Page 19: ...19 SCHEMATIC DIAGRAM 5 MAIN 5 6 DSP SECTION All manuals and user guides at all guides com...
Page 20: ...20 SCHEMATIC DIAGRAM 6 MAIN 6 6 TUNER SECTION All manuals and user guides at all guides com...
Page 25: ...25 SCHEMATIC DIAGRAM 8 AMP 1F VM All manuals and user guides at all guides com...
Page 27: ...27 SCHEMATIC DIAGRAM 9 PT All manuals and user guides at all guides com...
Page 29: ...29 IC BLOCK DIAGRAM All manuals and user guides at all guides com...
Page 30: ...30 All manuals and user guides at all guides com...
Page 31: ...31 All manuals and user guides at all guides com a l l g u i d e s c o m...
Page 37: ...37 MECHANICAL EXPLODED VIEW 1 1 All manuals and user guides at all guides com...
