6-21
DNW-A22/A22P
(Continued)
No. Item
Adjustment point
Remarks
5
DM RF output level rough adjustment
METAL Y
1
RV211/DM-89
TP3/DM-89
METAL C
1
RV406/DM-89
TP7/DM-89
OXIDE C
1
RV407/DM-89
TP7/DM-89
OXIDE Y
1
RV212/DM-89
TP3/DM-89
6
OMC carrier balance adjustment
OXIDE Y
1
RV107/DM-89,
1
RV108/DM-89
TP105/DM-89
OXIDE C
1
RV307/DM-89,
1
RV308/DM-89
TP305/DM-89
METAL C
1
RV305/DM-89,
1
RV306/DM-89
TP305/DM-89
METAL Y
1
RV105/DM-89,
1
RV106/DM-89
TP105/DM-89
7
OMC carrier balance provisional adjustment
n
This provisional adjustment explains how to adjust without using the spectrum analyzer as
opposed to adjustment (No. 6) using the spectrum analyzer.
Perform this provisional adjustment only when the spectrum analyzer is not available for an
urgent maintenance. Be sure to perform the adjustment (No. 6) using the spectrum analyzer
at a later date.
8
Demodulator limiter balance adjustment
Y
1
RV502/DM-89
TP501/DM-89
C
1
RV702/DM-89
TP8/DM-89
9
Non-liner output level adjustment
METAL Y
1
RV503/DM-89
TP505/DM-89
METAL C
1
RV703/DM-89
TP705/DM-89 (For DNW-A22P)
C
1
RV704/DM-89
TP705/DM-89 (For DNW-A22)
OXIDE C
1
RV704/DM-89
TP705/DM-89 (DNW-A22P only)
OXIDE Y
1
RV504/DM-89
TP505/DM-89
10
PB frequency response adjustment
METAL Y
A32 : DM VR 1 : EQ1 METAL-Y-A
VIDEO OUTPUT COMPOSITE 1
A32 : DM VR 1 : EQ1 METAL-Y-B
METAL C
A32 : DM VR 1 : EQ1 METAL-C-A
TP8/DM-89
A32 : DM VR 1 : EQ1 METAL-C-B
OXIDE Y
A32 : DM VR 1 : EQ1 OXIDE-Y-A
VIDEO OUTPUT COMPOSITE 1
A32 : DM VR 1 : EQ1 OXIDE-Y-B
OXIDE C
A32 : DM VR 1 : EQ1 OXIDE-C-A
TP8/DM-89
A32 : DM VR 1 : EQ1 OXIDE-C-B
Data save
A3F : NV-RAM CONTROL
11
Drop-out compensation equalizer adjustment
METAL Y
1
RV201/DM-89
TP203/DM-89
METAL C
1
RV401/DM-89
TP403/DM-89
OXIDE Y
1
RV202/DM-89
RV202/DM-89
OXIDE C
1
RV402/DM-89
RV402/DM-89
12
DM RF output level adjustment
METAL Y
1
RV211/DM-89
TP3/DM-89
METAL C
1
RV406/DM-89
TP7/DM-89
OXIDE C
1
RV407/DM-89
TP7/DM-89
OXIDE Y
1
RV212/DM-89
TP3/DM-89
(Continue)
6-3. DM-89 Board Replacement