52
CN351
L451
SFR451
SFR452
NAIN C.B (DECK SECTION)
< DECK SECTION >
1. Tape Speed Adjustment (DECK2)
Settings:
•
Test tape: TTA-100
•
Test point: TP6 (Lch), TP7 (Rch)
•
Adjustment location: SFR1
Method:
Playback the test tape and adjust SFR1 so that
the test point becomes 3000Hz ±5Hz (FWD).
and FWD SPEED ±45Hz (REV).
2. Head Azimuth Adjustment (DECK1, DECK2)
Settings:
•
Test tape: TTA-330
•
Test point: TP6 (Lch), TP7 (Rch)
•
Adjustment location: Head azimuth
adjustment screw
Method:
Playback the 8kHz signal of the test tape and
adjust screw so that the output becomes
maximum. Next, perform on each FWD and
REV PLAY mode.
3. PB Frequency Response Check (DECK1, DECK2)
Settings:
•
Test tape: TTA-330
•
Test point: TP6 (Lch), TP7 (Rch)
Method:
Playback the 315Hz and 8kHz signals of the
test tape and check that the output ratio of the
8kHz signal with respect to that of the 315Hz
signal is 0dB ±3dB.
4. PB Sensitivity Check (DECK1, DECK2)
Settings:
•
Test tape: TTA-200
•
Test point: TP6 (Lch), TP7 (Rch)
Method:
Playback the 400Hz and check that the output
level at TP6, TP7 is 280mV ±3dB.
5. REC/PB Frequency Response Adjustment (DECK2)
Settings:
•
Test tape: TTA-602
•
Test point: TP6 (Lch), TP7 (Rch)
•
Input signal: 1kHz/10kHz (-20VU)
•
Adjustment location: SFR451 (Lch)
SFR452 (Rch)
Method:
Apply a 1kHz signal and REC mode.
Then adjust OSC attenuator so that the output
level at the TP6, TP7 becomes 20-21mV.
Record and adjust SFRs so that the output level
of the 10kHz signal becomes 0dB ±0.5dB with
respect to that of the 1kHz signal.
6. REC/PB Sensitivity Check (DECK2)
Settings:
•
Test tape: TTA-602
•
Test point: TP6 (Lch), TP7 (Rch)
•
Input signal: 1kHz (0VU)
Method:
Apply a 1kHz signal and REC mode.
Then adjust OSC attenuator so that the output
level at the TP6, TP7 becomes 200-210mV.
Record and play back the 1kHz signal and
chack that the output is -2dB ±3dB.
Summary of Contents for CX-NC3RW
Page 12: ...14 13 FL GRID ASSIGNMENT ANODE CONNECTION ...
Page 13: ...16 15 SCHEMATIC DIAGRAM 1 MAIN 1 2 MAIN C B 1 2 ...
Page 14: ...18 17 SCHEMATIC DIAGRAM 2 MAIN 2 2 TUNER SECTION MAIN 2 2 TUNER SECTION ...
Page 15: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 A B C D E F G H I J K 20 19 WIRING 1 MAIN ...
Page 16: ...22 21 SCHEMATIC DIAGRAM 3 FRONT ...
Page 17: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 A B C D E F G H I J K 24 23 WIRING 2 FRONT ...
Page 18: ...26 25 SCHEMATIC DIAGRAM 4 INTERFACE ...
Page 19: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 A B C D E F G H I J K 28 27 WIRING 3 INTERFACE ...
Page 20: ...30 29 SCHEMATIC DIAGRAM 5 PT 1 2 3 4 5 6 7 A B C D E F G H I J K WIRING 4 PT ...
Page 21: ...32 31 SCHEMATIC DIAGRAM 6 CD R 1 2 CN104 SREQ CDREQ ARDY CD 12 CD R ...
Page 23: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 A B C D E F G H I J K 24 23 WIRING 2 FRONT ...
Page 24: ...26 25 SCHEMATIC DIAGRAM 4 INTERFACE ...
Page 25: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 A B C D E F G H I J K 28 27 WIRING 3 INTERFACE ...
Page 26: ...30 29 SCHEMATIC DIAGRAM 5 PT 1 2 3 4 5 6 7 A B C D E F G H I J K WIRING 4 PT ...
Page 27: ...32 31 SCHEMATIC DIAGRAM 6 CD R 1 2 CN104 SREQ CDREQ ARDY CD 12 CD R ...
Page 31: ...39 IC CS 4222 KS IC SN74LV14APW IC LA1837NL ...
Page 32: ...40 IC NJM2904M IC BU4551BF IC M62495FP ...
Page 33: ...41 IC LC7231D IC TA2040AF ...
