Electrical Instructions - Philips IJ6B2W/76 Service Manual

1. General points
1.1 During the test and measuring, supply a distortion free AC
mains voltage to the apparatus via an isolated transformer with
low internal resistance.
1.2 All measurements mentioned hereafter are carried out at a
Normal mains voltage (90 - 132 VAC for USA version, 195 -264
VAC for EUROPEAN version, or 90 - 264 VAC for the model with
full range power supply, unless otherwise stated.)
1.3 All voltages are to be measured or applied with respect to
Ground, unless otherwise stated.
Note: don't use heat-sink as ground.
1.4 The test has to be done on a complete set including LCD panel
in a room with temperature of 25 +/- 5 degree C.
1.5 All values mentioned in these test instruction are only applicable
of a well aligned apparatus, with correct signal.
1.6 The letters symbols (B) and (S) placed behind the test
instruction denotes (B): carried out 100% inspection at
assembly line
(S): carried out test by sampling
1.7 The white balance (color temperature), has to be tested in
subdued lighted room.
1.8 Repetitive power on/off cycle are allowed.
1.9 All optical characteristics (including WHITE-D, Brightness, and
so on) are determined according to panel specification after
warming up approximate 30 minutes that brightness stability is
optimal, and follow strictly after panel specification.
2. Input signal
Signal Type
2.1.1 Analog Video: 0.7 Vp-p linear, positive polarity
Sync. : TTL level, separate, positive or negative polarity
Signal source : pattern generator format as attachment.
( Table 1 to 53 ) Reference generator : Quantumdada 802G
2.1.2 Digital Video : 600m Vp-p TMDS signal
2.1.3 CVBS Video : 1Vp-p, 75Ohm
2.1.4 S-Video : Y-1 Vp-p, 75 Ohm
C-0.3V p-p, 75 Ohm
2.2 Input signal Mode
Factory Preset Modes (25 modes)
Item H.Freq. Mode
(KHz)
1 31.469 IBM VGA 3H
2 31.469 IBM VGA 2H
3 37.90 IBM VGA
4 37.500 VESA
5 43.27 VESA
6 37.879 VESA
7 53.67 VESA
8 49.700 MACINTOSH
9 48.363 VESA
10 60.023 VESA
11 68.68 VESA
12 68.700 MACINTOSH

Electrical instructions

Resolution V.Freq.
(Hz)
720x400 70.087
640x480 59.940
640x480 72.00
640x480 75.000
640x480 85.01
800x600 60.317
800x600 85.06
832x624 75.000
1024x768 60.004
1024x768 75.029
1024x768 85.00
1152x870 75.000
13 61.80 SUN WS
14 60.00 VESA
15 63.981 VESA
16 79.976 VESA
17 91.1 VESA
18 75.0 VESA
19 93.8 VESA
20 74.038 CVT
2.30MA-R
21 74.52 CVT 2.30MA
22 44.86 CVT 0.83MA
23 47.74 CVT 0.94MA
24 65.29 CVT 1.76MA
25 69.828 CVT 0.93MA
3. AC, DC Adaptor
3.1 Set mains voltage at 90Vac
Plug in the mains cable, check the display picture should be
normal. Plug the mains cable in and out at random, the display
picture should be normal again.
3.2 Set mains voltage at 264Vac
Plug in the mains cable, check the display picture should be
Normal. Plug the mains cable in and out at random, the display
picture should be normal again.
4. Display Adjustment
4.1 Input signals check In factory mode, use 64 gray level and
set the R,G,B gain to 100%.
4.2 Display quality test
Use timing mode as describe in 2.2, and use the pixel on / off
Pattern to adjust the clock until no stripe and adjust the phase
until clear picture. Check all factory presetting 25 modes.
4.2.1 SOG mode test : Use following timing for SOG test
64 KHz/60Hz, 1280 X 1024, pixel=108 Mhz
Horizontal
Frame border =0
Total size =15.620 s
Display size =11.852 s
Rear porch = 2.000 s
Sync width = 1.000 s
Sync polarity = -
Sync on green
4.5 OSD Control Factory Default Values The OSD Controls
shall have the following factory default values:
1. Menu = Basic
2. Brightness = 90
3. Contrast = 80 (with no saturation visible at 85)
4. Color Temperature = 6500K for the Commercial and
Custom Color for Consumer models.
5. Language = English
6. Power Saver = ON
7. Power On Recall = ON
8. Mode Display = OFF
9. Horizontal OSD Position = 50
10. Vertical OSD Position = 50
11. OSD Timeout = 30
HP L2335
15
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1152x900 65.96
1280x960 60.00
1280x1024 60.020
1280x1024 75.025
1280x1024 85
1600x1200 60
1600x1200 75
1920x1200 59.95
1920x1200 60
1152x720 60
1224x768 60
1680x1050 60
1728x1080i 60
Vertical
Frame border =0
Total size =16.670 ms
Display size =16.000 ms
Rear porch = 0.580 ms
Sync width = 0.080 ms
Sync polarity = -