32
DP65
1.3 Comb filter operation check
Adjustment preparation
(1) Receive the color bar signal at the regular tuning
point.
(2) Set the CONTRAST control to MAX and the other
controls to center.
Adjustment procedure
(1) Check line dots condition at border of each color A, B
as follows.
A
A
A
B
3D Y/C
Dots
A None
B None
Check and line dots.
B
A
BACK TO ADJUSTMENTS
1.4 Video Settings Check
1.4.1 Color Temperature Control Check
Adjustment preparation
(1) Receive the white raster signal.
(2) Set the video controls to normal conditions.
Adjustment procedure
(1) Select the Video mode using the
GH
buttons and
press Select button.
(2) Select Color Temperature option using the
GH
buttons and press Select button.
(3) Select MEDIUM using
FE
buttons and Picture will
turn reddish slightly.
(4) Select STANDARD using
FE
buttons and Picture
will turn more reddish.
(5) Select Black & White using
FE
buttons and Picture
will turn more and more reddish.
(6) Select HIGH using
FE
buttons and Picture will turn
bluish.
Important: High Voltage adjustment should
NOT be adjusted in field. This is
adjusted at factory using precise
loads and should NOT
be
readjusted.
1.5 High Voltage Adjustment (should NOT be
readjusted in field).
Adjustment preparation
(1) Connect High Voltage meter to FBT High Voltage
output. Connect GND of High Voltage meter to CPT
GND or FBT GND.
(2) Check that High Voltage adjustment VR (RH17) is
set to mechanical center. (located behind FBT on
DEFLECTION PWB).
(3) Receive circle pattern signal.
(4) VIDEO control should be reset.
Adjustment procedure
(1) Adjust High Voltage to following spec. by turning VR
RH17 slowly. ADJ. SPEC = 31.7KV±0.2kV.
(2) After adjustment, fix VR RH17 with Silicone glue
(KE40RTV).
2. FINAL ASSEMBLY ADJUSTMENT
2.1 Cut Off Adjustment
Adjustment preparation
(1) Adjust screen VR’s on Focus Pack fully
counterclockwise.
(2) Adjust Focus VR’s on Focus Pack fully
clockwise.
(3) Set video conditions to factory preset.
(4) The vertical incident illumination on the screen
should be 20 lux or less (room should be dark).
(5) Pre-heat run time should be at least 20 min.
!
DEFLECTION PWB.
RH17
High Voltage Adjustment VR.
T
H
0
1
(F
B
T
)
Static Focus VR
R
G
B
R
G
B
Screen VR
Focus VR
Screen VR
FOCUS PACK
Summary of Contents for 51F59A
Page 89: ...CIRCUIT BLOCK DIAGRAM TABLE OF CONTENTS 88 DP65 DP65G ...
Page 90: ...DP65 DP65G CONNECTION DIAGRAM TABLE OF CONTENTS 89 ...
Page 94: ...93 DP65 CPT P W B TABLE OF CONTENTS ...
Page 96: ...TABLE OF CONTENTS FINAL WIRING DIAGRAM TABLE OF CONTENTS TABLE OF CONTENTS DP65 95 ...
Page 97: ...TABLE OF CONTENTS FINAL WIRING DIAGRAM TABLE OF CONTENTS TABLE OF CONTENTS DP65 96 ...
Page 154: ...BACK TO TABLE OF CONTENTS PRINTED CIRCUIT BOARDS DP65 CPT PWB Solder side DP65 153 ...
Page 183: ......
