Twin Mode Geometry Conþ Rmation; Hd 1080I Mode Geometry Adjustment - Sony TRINITRON KD-34XBR2 Service Manual

4-5. TWIN MODE GEOMETRY CONFIRMATION
The TWIN mode uses the FULL mode adjustments. You should check
the geometry in TWIN mode, but it will normally be OK. Minor fl aws are
allowed. Anything beyond minor fl aws indicates problems that will be
evident in the FULL mode also. You should correct the problems in the
FULL mode only, not the TWIN mode.
This completes the TWIN mode geometry confi rmation.
4-6. HIGH DEFINITION 1080I MODE
GEOMETRY ADJUSTMENT
The high defi nition 1080i mode ("HD1080i") shares many of the
FULL mode adjustments. As a rule you should not have to make
any adjustments in HD1080i mode except vertical size (ASPT),
vertical position (SCRL), and horizontal positioning (HPOS) which are
independent of the FULL mode.
SET-UP CONDITION:
Display Mode: HD1080i FULL (this mode is automatically selected when
a 1080i video signal is displayed).
Picture mode: STANDARD (select the STANDARD mode from the user
menu, then press the RESET button on the remote control to set the
STANDARD settings to the factory settings).
TILT CORRECTION: set to zero (from the user menu).
VERTICAL CORRECTION: set to zero (from the user menu).
PROCEDURE:
1. With the set turned off, turn it on and tune a DTV channel (either
standard defi nition or high defi nition is OK), then turn the set off
again.
2. Enter the service mode.
3. Display the 1080i cross-hatch pattern as follows:
a. Select adjustment category "DTV".
b. Select adjustment item # 1 "PATN".
c. Select the 1080i cross-hatch pattern by changing the PATN
data from "0" to "1". The cross-hatch will appear after a
second or two.
4. Adjust the pattern so that it is centered on the screen horizontally
and vertically. Use the dots that surround the pattern to determine
when it is centered.
The HPOS adjustment affects the other display modes; adjust it to fi nd
the best balance among all display mode.
Device Name Adj. Item #
2150D-1 12
2150D-2 1
* Adjust as necessary to horizontally and vertically center the pattern.
Name Data
SCRL *
HPOS *
— 23 —
5. Write the data to memory.
6. Adjust the vertical size.
Device Name Adj. Item #
2150D-1 11
* Adjust as necessary so that the horizontal dots along the top and
bottom of the pattern are close to the bezel.
7. Write the data to memory.
This completes the HD1080i mode geometry adjustment.
KD-34XBR2
Name Data
ASPT *