Philips 107E61/00 Service Manual page 32

107E6 CRT
32
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Pincushion: Pre-align for optimal East/West side lines
Pin unbalance: 50%
Keystone: 50%
Parallelogram: 50%
Rotation: adjust for video North & South parallel to CRT (bezel)
V-gain: set as EEPROM data (CRT and mode dependent)
V-linbal: 127
Corner T: 190
Corner B: 190
PinCorr T: 127
PinCorr B: 127
S-wave: 127
S-wave bal: 127
3: Adjust the parameters in the following sequence:
Adjust V-offset for V-centered raster background (video will be slightly
off-center)Set H-DC shift switch for H-centered raster background
(offset to L-side should be avoided)
Adjust V-LINBAL for optimal top/bottom V-linearity
Adjust V-LIN for optimal top center V-linearity
Adjust V-shift for centered video
Adjust Pincushion for optimal East/West side lines
Adjust CORNER T and B correction for straightest L/R sides
Adjust pincushion unbalance for balanced sides
Adjust parallelogram for balanced sides
Adjust trapezoid for optimal square picture
4: If picture still has some higher order distortion:
Adjust S-wave and S-wave balance for smoothest L/R side shapes
(only small modifications)Adjust PINCORR T / Corner T and
"
PINCORR B / Corner B for "repairing" induced errors
After this mode is optimized, the mode dependent values (Pin / Pin
unbalance / Trapezoid / parallelogram) can be copied to all modes.
But, for the item of Pin, 31K-70Hz (350/400 vertical lines) mode is
an exception. The proper value is original DAC value plus 10 to
12 %, depending on CRT source. In this way, less time is needed
for aligning all modes.
7 Focus adjustment
With full white pattern display at timing 68Khz /85Hz 1024x768,
set brightness at 50% and adjust contrast to 25 FL at the center of
the screen. Apply a pattern shown in Fig. 8 and adjust H and V
focus pot-meters which are located at fly back transformer,
until H- and V-line focus is optimal over the entire screen.
8 Adjustment of Moire
Apply full white pattern and adjust contrast till luminance around
15FL. 1/3 area with minor moire can be acceptable. If needed,
use moire cancellation function and adjust the H- Moire or V-Moire
to cancel the moire defect, then save at factory.
9 Loading DDC code
The DDC HEX data (refer to sheet-190) should be written into the
DDC by EEPROM writer or equivalent method.
DDC1
Software
Hardware
10.Default settings
The finished product should have the following major default settings
(For detail, please see sheet 140.):Model select: 107T6 (A2 PAGE
Byte 43 = 00H), LF3: ON, Languages: 8 or 9 (A2 PAGE, Byte
35 = 24H for 8 languages, 04H for 9 languages). Life hours: reset to
0 (A2 PAGE Byte 48 = 00H, Byte 49 = 00H).
Contrast: 100%, Brightness: 50%, Color: 9300, Language: English(
Chinese), (Remark : Every mode is independent for "reset to factory
setting".) "
TIMING FOR V32 GS4 107T6 71K MODEL
REFERENCE PATTERN GENERATOR : CHROMA 2135
* According to VESA version 1.0 release 0.6p
Factory preset modes
TABLE 1: 31.469 KHz/70.087 Hz, 720 X 400, pixel=28.325 MHz
Electrical Instructions
"
DDC2B
V
"
Horizontal
Frame border = 0
Total size = 31.774 us
Display size = 25.422 us
Rear porch = 1.907 us
Sync width = 3.813 us
Sync polarity = -
TABLE 2: 31.469KHz/59.940 Hz, 640 X 480, pixel=25.175 MHz
Horizontal
Frame border = 0
Total size = 31.778 us
Display size = 25.422 us
Rear porch = 1.907 us
Sync width = 3.813 us
Sync polarity = -
TABLE 3: 43.269KHz/85.008 Hz, 640 X 480, pixel=36.000 MHz
Horizontal
Frame border = 0
Total size = 23.111 us
Display size = 17.778 us
Rear porch = 2.222 us
Sync width = 1.556 us
Sync polarity = -
TABLE 4: 46.875 KHz/75 Hz, 800 X 600, pixel=49.500 MHz
Horizontal
Frame border = 0
Total size = 21.333 us
Display size = 16.162 us
Rear porch = 3.232 us
Sync width = 1.616 us
Sync polarity = +
TABLE 5: 53.674 KHz/85.061 Hz, 800 X 600, pixel=56.250 MHz
Horizontal
Frame border = 0
Total size = 18.631 us
Display size = 14.222 us
Rear porch = 2.702 us
Sync width = 1.138 us
Sync polarity = +
TABLE 6: 60.03 KHz/75.029 Hz, 1024 X 768, pixel=78.750 MHz
Horizontal
Frame border = 0
Total size = 16.660 us
Display size = 13.003 us
Rear porch = 2.235 us
Sync width = 1.219 us
Sync polarity = +
TABLE 7: 63.981 KHz/60.020 Hz, 1280 X 1024, pixel=108 MHz
Horizontal
Frame border = 0
Total size = 15.630 us
Display size = 11.852 us
Rear porch = 2.296 us
Sync width = 1.037 us
Vertical
Frame border = 0
Total size = 14.268 ms
Display size = 12.711 ms
Rear porch = 1.112 ms
Sync width = 0.064 ms
Sync polarity = +
Vertical
Frame border = 0
Total size = 16.683 ms
Display size = 15.253 ms
Rear porch = 1.049 ms
Sync width = 0.064 ms
Sync polarity = -
Vertical
Frame border = 0
Total size = 11.764 ms
Display size = 11.093 ms
Rear porch = 0.578 ms
Sync width = 0.069 ms
Sync. polarity = -
Vertical
Frame border = 0
Total size = 13.333 ms
Display size = 12.800 ms
Rear porch = 0.448 ms
Sync width = 0.064 ms
Sync. polarity = +
Vertical
Frame border = 0
Total size = 11.756 ms
Display size = 11.179 ms
Rear porch = 0.503 ms
Sync width = 0.056 ms
Sync polarity = +
Vertical
Frame border = 0
Total size = 13.328 ms
Display size = 12.795 ms
Rear porch = 0.466 ms
Sync width = 0.050 ms
Sync polarity = +
Vertical
Frame border = 0
Total size = 16.661 ms
Display size = 16.005 ms
Rear porch = 0.594 ms
Sync width = 0.047 ms