Panasonic PT-56DLX25 - TROUBLESHOOTING HINTS; TROUBLESHOOTING HINTS FOR BLOCK LEVEL REPAIR

COLOR WHEEL INDEX DELAY
ADJUSTMENT
Purpose:
To set the standard color index.
Symptom of Misadjustment:
Many vertical stripes will appear.
SET UP:
1. Install the Optical Block Unit into the Cabinet.
2. Enter Work Mode. Then, enter Factory Adjust Mode.
3. Press the CH UP/DOWN key on the remote to select
"OTHER" on menu and press the OK key. (OTHER
menu will appear.)
4. Press the CH UP/DOWN key on the remote to select
"CW INDEX DELEY" on menu and press the ASPECT
key once to select "Red ramp pattern."
To release this mode:
1. After completing the adjustment, press the CH UP/DOWN
key on the remote to return to the OTHER menu.
2. Then, press RECALL key twice to return to Work Mode, and
press and hold the VOLUME DOWN button on the unit and
the RECALL key on the remote for more than 5 seconds.
Alternatively, turn off the power.
1. Display the Red100% ramp pattern by pressing the
ASPECT key.
2. Adjust "CW INDEX DELAY" value by pressing the
VOLUME UP/DOWN key so that red ramp pattern is
even, with no discoloration.
Fig. E5-1
3. Display the Green100% ramp pattern by pressing the
ASPECT key.
4. Confirm the green ramp pattern is even, with no
discoloration. If not, adjust "CW INDEX DELAY" value
by pressing the VOLUME UP/DOWN key.
Fig. E5-2
5. Display the Blue100% ramp pattern by pressing the
ASPECT key.
6. Confirm the blue ramp pattern is even, with no
discoloration. If not, adjust "CW INDEX DELAY" value
by pressing the VOLUME UP/DOWN key.
Fig. E5-3
7. Repeat the above steps until all patterns are even, with
no discoloration.
Note:
After this adjustment, do not copy using the EEP COPY L->DG
in the Factory Adjust Mode.
Otherwise, the factory default data of the Optical Block Unit will
be copied to EEPROM IC on the Main C.B.A. (Circuit Board
DG), and re-adjustment will be necessary.
<Red ramp pattern>
OTHER 1/1
OPT HPOSI 8000
OPT VPOSI 8000
CW INDEX DELAY00F0
WB 00
DDP
GC:05060101
<Red ramp pattern>
OTHER 1/1
OPT HPOSI 8000
OPT VPOSI 8000
CW INDEX DELAY00FD
WB 00
DDP
GC:05060101
<Green ramp pattern>
OTHER 1/1
OPT HPOSI 8000
OPT VPOSI 8000
CW INDEX DELAY00F0
WB 00
DDP
GC:05060101
<Blue ramp pattern>
OTHER 1/1
OPT HPOSI 8000
OPT VPOSI 8000
CW INDEX DELAY00F0
WB 00
DDP
GC:05060101
PT-56DLX75 / PT-61DLX75
48