Alignments; Electrical Instructions; General Points; Input And Output Signal - Philips 32TA1000/93 Service Manual

8. Alignments

index of this chapter:

8.1 Electrical Instructions

8.2 DDC Instructions&Serial NO. Definition
8.3 DDC DATA
8.4 ISP Instructions
8.5 Display Adjustment
8.1 Electrical Instructions
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 NAFTA 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 measurement or applied with respect to
ground,unless otherwise stated.
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 except it should be
avoided within 6 sec.
2.

Input and output signal

2.1.1 PC Signal type
Analog Video : 15 pin D-sub ,0.7 Vp-p linear, positive polarity
Separate Sync. : TTL level, separate, positive or negative polarity
Audio signal : 3.5mm stereo mini-jack
Level: Nominal : 0.5 V rms.
- Maximum : 1.5 V rms.
- Impedance > 10 k
Signal source : pattern generator format as attachment
(table 1 to 5 ) Reference generator : CHROMA 2200 or 2250
2.1.2 TV Signal type
RF Signal : Aerial input / 10mV(80dBuV)
Video signal : Video( RCA jack, CVBS input) / 1Vpp (300mV-sync,
700mV-video.)
S video input / 1VppY-signal, 300mVpp C-signal
COMP Video( RCA jack , YPbPr input) / 1Vpp
Y signal , 350mVpp Pb , Pr signal
DVI : Digital interface with 4 channels TMDS signal
Audio signal : Audio (1) R/L( RCA jack ) for AV IN1 (share with
Video and S-video1).
Level: - Nominal
- Maximum : 1.5 V rms.
- Impedance > 10 k .
Audio (2) R/L( RCA jack ) for AV IN2 (share with
Video2 and S-video2).
Level: - Nominal
- Maximum : 1.5 V rms.
- Impedance > 10 k .
8. Alignments
.
: 0.5 V rms.
: 0.5 V rms.
Audio (3) R/L ( RCA jack ) for AV IN3 (share with
Video3 and Comp. video).
Level: - Nominal
- Maximum : 1.5 V rms.
- Impedance > 10 k .
Audio (4) R/L( RCA jack ) for DVI IN.
Level: - Nominal
- Maximum : 1.5 V rms.
- Impedance > 10 k .
2.1.3 PVR output (CVBS output):
Video: CVBS output 1Vpp / Impedance : 75
Audio: R/L output (from CVBS)
Level: - Nominal
- Maximum : 1.5 V rms.
- Impedance < 1 k .
2.1.4 Headphone
Audio: R/L output -10mW at 32 .
3.5mm stereo jack with switch
Impedance is between 8 and 600 .
2.2 PC Input signal mode
2.2.1 PRESET VIDEO RESOLUTION
The analogue color LCD monitor must be capable of displaying
standard resolutions within the vertical frequency range of
58 - 63 Hz, and horizontal scan range of 30 - 50 KHz.
Use the CHROMA-2250 generator as the standard signal timing
source.
Dot rate H.freq
Mode
(MHz) (KHz)
1 25.175 31.469 IBM VGA
2 36.000 35.156 VESA
3 40.000 37.879 VESA
4 65.000 48.363 VESA
5 74.500 44.772 WXGA
6 79.500 47.776 WXGA
Resolution recommend on 1280 X 768 @ 60Hz
2.3 TV input signal Channel and pattern
2.3.1 TV Table 2.3.1 for China model
Signal Distribution Table (PAL D/K) (CHINA)
Frequency Carriers
PRG CH
Video Sound
1 C 4 65.75MHz 72.25MHz
2 E 7 184.25MHz 190.75MHz
E12 224.25MHz 230.75MHz
3
4 K21 471.25MHz 477.75MHz
5 G34 511.25MHz 517.75MHz
6 G62 543.25MHz 549.75MHz
7 M58 551.25MHz 557.75MHz
8 G47 615.25MHz 621.75MHz
TPF1.4A LA
: 0.5 V rms.
: 0.5 V rms.
: 0.5 V rms.
V.freq
Resolution Remark
(Hz)
640*480 59.940 IBM VGA
800*600 56.250 VESA
800*600 60.317 VESA
1024*768 60.004 VESA
1280*720 59.855 CVT
1280*768 59.87 CVT
TV System Pattern
PAL D(CCIR) Full Write
Circle
PAL D(CCIR)
Pattern
PAL D(CCIR) Color Bar
PAL K(CCIR) Full Write
Circle
PAL K(CCIR)
Pattern
PAL K(CCIR) Color Bar
PAL K(CCIR) Crosshatch
PAL K (CCIR) Color Bar
49