Sharp VL-C780S Serviceanleitung Seite 179

C780S/H/X
-C7400E
-CES0S/H/X
-C6400E
=E System Frequency Characteristics
TT TTA TT TTT TTP tT
eter TL TT ET
ee ee
Sia eee
200 1000 2000 10000 40000
FREQUENCY Hz
Figure 3-2.
2. REC system
in order to correct the loss in high band due to spacing loss or demagnetization loss, equalization is made
by REC-amp (between © and © in Fig. 3-1) as shown in Fig. 3-3 in SP mode and Fig. 3-4 in EP mode.
REC System Frequency Characteristics
erp Ey tee
PT Tet PT
Sani SEH GSSTiM
0 20 50 100 200 500 1000 2000 5000 10000 20000 40000
FREQUENCY Hz
Figure 3-3. and Figure 3-4.
(®—® of Fig. 3-1)
3. PB system
In PB system, equalization is made by the PB-amp (between © and ©® in Fig. 3-1) based on VHS standard as
shown in Fig. 3-5 in SP mode and Fig. 3-6 in EP mode.
PB System Frequency Characteristics
Vall 3-6
f
fF
CECI? CIC
Figure 3-5. and Figure 3-6,
18
aa —- et Bas Ge ee
CoP Hee [Fads Se