34
1. Tape Speed Adjustment (DECK 2)
Settings : Test tape : TTA100
Test point : TP5 (Lch), TP6 (Rch)
Adjustment location : SFR1
Method : Play back the test tape and adjust SFR1 so that the
frequency counter reads 3000 Hz ± 5 Hz (FWD) and
± 45 Hz (REV) with respect to forward speed.
2. Head Azimuth Adjustment (DECK 1, DECK 2)
Settings : Test tape : TTA300
Test point : TP5 (Lch), TP6 (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 : TTA330
Test point : TP5 (Lch), TP6 (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. REC/PB Frequency Response Adjustment (DECK 2)
Settings : Test tape : TTA602
Test point : TP5 (Lch), TP6 (Rch)
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 the TP5,
TP6 becomes 10 mV. Record and play back the 1 kHz
and 8 kHz signal and adjust SFRs so that the output of
the 8 kHz signal is 0 dB ± 1 dB with respect to that of
the 1 kHz signal.
5. REC/PB Sensitivity Check (DECK 2)
Settings : Test tape : TTA602
Test point : TP5 (Lch), TP6 (Rch)
Input signal : 1 kHz (LINE IN)
Method : Apply a 1 kHz signal and REC mode. Then adjust
OSC attenuator so that the output level at TP5, TP6
becomes 80 mV. Record and play back the 1 kHz
signals and check that the output is 1 dB ± 3.5 dB.
6. PB Sensitivity Check (DECK 1, DECK 2)
Settings : Test tape : TTA200
Test point :TP5 (Lch), TP6 (Rch)
Method : Play back the test tape and check that the output level of
the test point is 110 mV ± 3 dB.
< DECK SECTION >
< FRONT SECTION >
1. µ-CON OSC Adjustment
Settings : Test point : TP7 (K-SCAN), TP8 (GND)
Adjustment location : L151
Method : Insert AC plug while pressing tuner function key and
power key. Adjust L151 so that the frequency at the test
point is 141.67 Hz ± 0.14 Hz.
17. FM Separation Check
Settings : Test point : TP5 (Lch), TP6 (Rch)
Input level: 60 dBµV
Method : Set to FM 98.0 MHz and check that the test point is
more than 12 dB <EZ>, more than 25 dB <EXCEPT
EZ>.
Содержание NSX-SZ702
Страница 10: ... 10 SCHEMATIC DIAGRAM 1 MAIN 1 2 AMP SECTION HA HS ...
Страница 11: ... 11 SCHEMATIC DIAGRAM 2 MAIN 2 2 TUNER SECTION HA HS ...
Страница 13: ... 13 SCHEMATIC DIAGRAM 3 MAIN 1 2 AMP SECTION HT ...
Страница 14: ... 14 SCHEMATIC DIAGRAM 4 MAIN 2 2 TUNER SECTION HT ...
Страница 16: ... 16 SCHEMATIC DIAGRAM 5 MAIN 1 2 AMP SECTION EZ ...
Страница 17: ... 17 SCHEMATIC DIAGRAM 6 MAIN 2 2 TUNER SECTION EZ ...
Страница 18: ... 18 SCHEMATIC DIAGRAM 7 PT EZ ...
Страница 21: ... 21 SCHEMATIC DIAGRAM 8 FRONT M OP PANEL S OP PANEL MOTOR BOX SW DECK HA HS HT ...
Страница 23: ... 23 SCHEMATIC DIAGRAM 9 FRONT M OP PANEL S OP PANEL MOTOR BOX SW DECK EZ ...
Страница 25: ... 25 WIRING 8 PT HA HS HT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H I J K L M N O P Q R S T U ...
Страница 26: ... 26 SCHEMATIC DIAGRAM 10 PT HA HS HT ...
Страница 28: ...WIRING 10 DECK HEAD 1 EZ 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H I J K L M N O P Q R S T U 28 ...
Страница 29: ... 29 IC BLOCK DIAGRAM ...
Страница 42: ...2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 JAPAN TEL 03 3827 3111 Printed in Singapore 2000075 921338 ...