Download Print this page

Hitachi C43-FD2000 Service Manual page 61

Dp2m chassis, projection color television

Advertisement

(3-2-2)Then push "
" of remote control and set the AGC
value again to greater than and as close as 180.
(3-2-3) Push the "MUTE" button of remote control, then AGC
adjustment is completed.
No. V0XX
11
34
182
12
54
181
13
64
14
32
1.5 SUB AGC ADJUSTMENT
Adjustment Preparation
(1) To prevent circuit temperature drift, the set must be
warmed up before alignment longer than 10 minutes.
(2) Adjust the RF signal frequency and level accuracy to
224.25MHz and -50dBm.
Adjustment Procedure
(1) Press PIP button to display sub picture, and
receive the PinP sub channel point philips pattern
signal in adjustment mode.
(2) Select item No.12 in service menu by '
key.
(3-1)When the value of AGC of NO.12 of the service menu
is 180 or less than 180,
(3-1-1)Push "
" of remote control and set the AGC
value becomes 180 or greater than 180.
(3-1-2)Push the "MUTE" button of remote control, then
AGC adjustment is completed.
(3-2)When the value of AGC of NO.12 of the service menu
is 180 or greater than 180.
(3-2-1)Set the value of AGC by "
smaller than 180 at
first.
(3-2-2)Then push "
value again to greater than and as close as 180.
(3-2-3) Push the "MUTE" button of remote control, then
AGC adjustment is completed.
2. FINAL ASSEMBLY ADJUSTMENT
2.1 CUT OFF ADJUSTMENT
Adjustment preparation
(1)
Pre heat-run should be finished.
(2)
Confirm item No. 41, 42 and 43 are set to 127 in
service menu.
Adjustment procedure
(1)
Go to "SERVICE" mode item No 10 by using R/C.
Press
key to enter CUT OFF adjustment mode.
(2)
Screen VR (R, G and B) should be turned clockwise
gradually and set the
condition that the each horizontal line is just beginning
to appear.
(3)
Press
key to return normal mode.
The Value of AGC
'or'
" of remote control to
" of remote control and set the AGC
2.2 DCU PHASE DATA SETTING
Adjustment preparation
1)
Cut off adjustment should be finished.
Adjustment procedure
(1)
Receive any PAL signal and Set to 100Hz mode. (RF or
VIDEO)
(2)
Push the "SERVICE ONLY" switch on the
CONVER/FOCUS P.W.B. to enter the adjustment
mode of the digital convergence unit.
(3)
Phase set
1)
Press the [REVEAL] key on R/C to display the
green cross-hatch pattern.
2)
Press the [CH i/ii ] key to recall the phase
DATA on screen.
PAL 100i mode
PHASE MODE: 1
PH-H D5
PH-V 0A
CR-H 2E
CR-V 0E
3)
If phase data is not the same as above,
'
change the DATA by using the following R/C
keys.
Press [4] or [6] key to adjust the PH-H
Press [2] or [5] key to adjust the PH-V
Press [
Press [
4)
Press the [REVEAL] key to exit from phase
mode.
5)
Press [INDEX] key on R/C twice to write the
data into Rom.
6)
Push the "SERVICE ONLY" switch on the
CONVER / FOCUS P.W.B. to exit from
adjustment mode of the digital convergence
unit.
(4)
Change to PAL50p mode (Set DCU the PAL50p
mode) and repeat procedure (2)-(3) for PAL50p
mode.
(5)
Change the signal to NTSC circle pattern (Set DCU
the NTSC mode) and repeat procedure(2)-(3) for
NTSC mode.
PAL 50p mode
NTSC 60p mode
PHASE MODE: 5
PHASE MODE: 6
PH-H D4
PH-H D2
PH-V 14
PH-V 05
CR-H 2E
CR-H 30
CR-V 0E
CR-V 0A
] or [
] key to adjust the CR-H
] or [
] key to adjust the CR-V

Advertisement

loading

This manual is also suitable for:

C50-fd2000