ADJUSTMENT – 2 <DECK>
< DECK SECTION >
1. Tape Speed Adjustment (DECK 2)
Settings :
• Test tape :
TTA–100
• Test point :
TP8 (Lch), TP9 (Rch)
• Adjustment location : SFR1
Method :
Play back the test tape and adjust SFR1 so that the
test point becomes 3000 Hz ± 5 Hz (FWD) and FWD
SPEED ± 45Hz (REV) with respect to forward speed.
2. Head Azimuth Adjustment (DECK 1, DECK 2)
Settings :
• Test tape :
TTA–330
• Test point :
TP8 (Lch), TP9 (Rch)
• Adjustment location : Head azimuth
adjustment screw
Method :
Play back (FWD) the 8 kHz 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
• Test point :
TP8 (Lch), TP9 (Rch)
Method :
Play back the 315 Hz and 10 kHz signals of the test
tape and check that the output ratio of the 10 kHz
signal with respect to that of the 315 Hz signal is
0 dB ± 5 dB.
4. PB Sensitivity Check (DECK 1, DECK 2)
Settings :
• Test tape :
TTA–200
• Test point :
TP8 (Lch), TP9 (Rch)
Method :
Play back the test tape and check that the output level
of the test point is 110 mV ± 3 dB.
5. REC/PB Frequency Response Check (DECK 2)
Settings :
• Test tape :
TTA–602
• Test point :
TP8 (Lch), TP9 (Rch)
• Input signal :
8 kHz/1 kHz (-26 dB)
• Adjustment location: SFR451 (Lch)
SFR452 (Rch)
Method :
Apply a 1 kHz signal and REC mode. Then adjust
OSC attenuator so that the output level at TP8, TP9
becomes 10 mV. Record and play back
the 1 kHz and 8 kHz signals and adjust SFRs so that
the output of 8 kHz signals becomes 0 dB ± 1 dB with
respect to that of the 1 kHz signal.
6. REC/PB Frequency Response Check (DECK 2)
Settings :
• Test tape :
TTA–602
• Test point :
TP8 (Lch), TP9 (Rch)
• Input signal :
8 kHz/1 kHz (-26 dB)
Method :
Apply a 1 kHz signal and REC mode. Then adjust
OSC attenuator so that the output level at TP8, TP9
becomes 10 mV. Record and play back
the 1 kHz signals and check that the output is
0 dB ± 2.5 dB.
7. REC/PB Sensitivity Check (DECK 2)
Settings :
• Test tape :
TTA–602
• Test point :
TP8 (Lch), TP9 (Rch)
• Input signal :
1 kHz (0VU / -8.0 dB)
Method :
Apply a 1 kHz signal and REC mode. Then adjust
OSC attenuator so that the output level at TP8, TP9
becomes 80 mV. Record and play back
the 1 kHz signals and check that the output is
–1 dB ± 3.5 dB.
– 36 –
Summary of Contents for CX-NAJ800
Page 14: ... 14 SCHEMATIC DIAGRAM 1 MAIN 1 2 ...
Page 15: ...SCHEMATIC DIAGRAM 2 MAIN 2 2 TUNER 15 ...
Page 16: ...SCHEMATIC DIAGRAM 3 FAN 16 ...
Page 20: ...SCHEMATIC DIAGRAM 4 FRONT 20 ...
Page 22: ...SCHEMATIC DIAGRAM 5 PANORAMA AMP 22 ...
Page 24: ...SCHEMATIC DIAGRAM 6 PT U 24 ...
Page 26: ...SCHEMATIC DIAGRAM 7 PT LH 26 ...
Page 29: ...IC BLOCK DIAGRAM 29 ...
Page 30: ...FL BJ815GNK GRID ASSIGNMENT AND ANODE CONNECTION 30 GRID ASSIGNMENT ...
Page 31: ... 31 ANODE CONNECTION ...