35
SCU-2456ZRN,2556ZRN
FM ADJUSTMENT
Modulation
M:MONO MOD., 400Hz 30%(22.5kHz Dev.) or 400Hz 100%(75kHz Dev.)
S:STEREO MOD., 1kHz, L or R=30%(20.25kHz+7.5kHz Dev.)
NOTE:Before proceeding to further adjustments after switching power ON, let the tuner run for ten minutes to allow
the circuits to stabilize.
FM SSG
Displayed
Adjustment
Adjustment Method
No.
Frequency(MHz)
Level(dBf)
Frequency(MHz)
Point
(Switch Position)
TUN Volt
1
•••••
•••••
108.0
L5
DC V Meter(1) : 6V
IF
2
98.1 M
60
—
100
98.1
T51
Center Meter : 0
ANT Coil
3
98.1 M
5
98.1
L2
mV Meter(1) : Maximum
RF Coil
4
98.1 M
5
98.1
L4
mV Meter(1) : Maximum
RF
5
129.3 M
60
—
80
107.9
TC1
mV Meter(1) : Minimum
Trimmer
6
RF Coil and RF Trimmer shall be adjusted twice or more
IFT
7
98.1 M
5
98.1
T31
mV Meter(1) : Maximum
(STEREO MODE)
ARC
8
98.1 S
40
98.1
VR154
mV Meter(1) : Separation 5dB
(STEREO MODE)
FMSL ADJUSTMENT
Modulation
MONO MOD., 400Hz 100%(75kHz Dev.)
FM SSG
Displayed
Adjustment
Adjustment Method
No.
Frequency(MHz)
Level(dBf)
Frequency(MHz)
Point
(Switch Position)
FMSL
1
98.1 M
25
98.1
VR501
DC V Meter(2) : 1.25V
±
0.05V
Содержание SCU 2556 ZRN
Страница 4: ...4 SCU 2456ZRN 2556ZRN 2 2 EXTERIOR SCU 2456ZRN ...
Страница 6: ...6 SCU 2456ZRN 2556ZRN 2 3 EXTERIOR SCU 2556ZRN ...
Страница 8: ...8 SCU 2456ZRN 2556ZRN ...
Страница 14: ...14 1 2 3 4 1 2 3 4 D C B A TAPE 4 6dBs A a A b A b 1 2 3 4 5 6 SCU 2456ZRN 2556ZRN ...
Страница 16: ...16 SCU 2456ZRN 2556ZRN 1 2 3 4 1 2 3 4 D C B A 3 1 2 FM AM TUNE DSP 201M A11F B 3 3 FM AM TUNER UNIT B ...
Страница 17: ...17 SCU 2456ZRN 2556ZRN 5 6 7 8 5 6 7 8 D C B A TUNER UNIT B A ...
Страница 20: ...20 SCU 2456ZRN 2556ZRN 1 2 3 4 1 2 3 4 D C B A A A TUNER AMP UNIT ...
Страница 21: ...21 SCU 2456ZRN 2556ZRN 5 6 7 8 5 6 7 8 D C B A A SIDE B ...
Страница 22: ...22 SCU 2456ZRN 2556ZRN 1 2 3 4 1 2 3 4 D C B A 4 2 FM AM TUNER UNIT SIDE A B FM AM TUNER UNIT A B ...
Страница 23: ...23 SCU 2456ZRN 2556ZRN 1 2 3 4 1 2 3 4 D C B A SIDE B B FM AM TUNER UNIT B ...