Comb Filter Phase Adjustment; Comb Filter Level Adjustment - Sanyo VM-EX220P Adjustment Manual

4. Comb Filter Phase Adjustment
[Connection]
J1OO5
VRI1l
[Adjustment / Check]
pleasuring Point
Measuring Equipment
Condition
TP101 (CH1) Oscilloscope
stop
TP105 (EXT)
TP143 (GND)
Input Signal / Alignment Tape
Color bar
ADJ. Location
ADJ. / Check Value
VR111
Preparation:
POWER switch: "PLAYER"
" Short pin @, pin @ and pin @ of J1OO5.
Adjusting / Checking method:
1. Adjust with VR111 so that the amplitude (residual chroma
level) of green becomes minimum
n
h
Residual chroma level
- minimum
5.
Comb Filter Level Adjustment
[Connection]
J1OO5
VR102
—
o
TP105
TP143 O
m
n
. ~Q
CH1
EXT
OCH2
u u
[Adjustment / Check]
Measuring Point
Measuring Equipment
Condition
TP101 (CH1) Oscilloscope
stop
TP105 (EXT)
TP143 (GND)
Input Signal / Alignment Tape
Color bar
I
ADJ. Location
ADJ. I Check Value
VR102
Preparation:
POWER switch: "PI A YER"
Short pin @, pin @ and pin @ of J1OO5.
Adjusting / Checking method:
1. Adiust with VR102 so that the amplitude (residual chroma
level) of greeen becomes minimum (below 25 mVp-p).
n
4
Residual chroma level
~ minimum
,.i
\
+
—
—
– 5-16 –