170C4/N4
16
Electrical Instructions
1.
2.
General points
Input signal
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 after 30 minutes warm-up at least 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.
2.1
Signal type
2.1.1 Video signal input
Signal source: pattern generator format as attachment.
(Table 1 to 34) Reference generator: QuantumData 802G
The input signals can be applied in two different modes:
1). VESA Analog
The video input consists of red, green, and blue signals.
The video signals are analog levels,where 0V corresponds
to black and 700mV is the maximum signal amplitude.
Input impedance of video pins is 75 ohm +- 1%.
2.1.2
Sync signal input
The capability of sync signal inputs shall include separate
sync, composite sync and sync on green. Input
impedance: 2k2 ohms The signals are defined as follow:
Separate sync
Composite sync
Sync on green H-sync
Signal source: pattern generator format as attachment
(Table 1 to 34) Reference generator: QuantumData 802G
2.2
Input signal mode
Pre-set 34 modes
PRESETVIDEORESOLUTION
# Resolution
H-
Frequency
Pixel rate
V-
Frequency
Comment
1 640X350
31.5K
25.175
70Hz
IBM VGA 10h
2 720X400
31.5K
28.322
70Hz
IBM VGA 3h
3 640X480
31.5K
25.175
60Hz
4 640X480
35.0K
30.24
67Hz
5 640X480
37.9K
31.5
72Hz
6 640X480
37.5K
31.501
75Hz
7 640X480
43.3K
36
85Hz
MAC
IBM XGA-2
non-VESA
non-VESA
MAC
SUN Mode IV
SUN Mode II
non-VESA
SUN Mode V
DOS/V
31 1280X102
4
81.1K
135.008
76Hz
SUN Mode I
32 688X556
31.3K
27
50Hz
TV-PAL
33 960X720
44.76K
57.58
60Hz
34 960X720
56.4K
72.42
75Hz
Содержание 170C4FS/00
Страница 11: ...170C4 N4 11 Go to cover page Wiring Diagram h t t p w w w w j e l n e t ...
Страница 35: ...ROM Schematic Diagram 35 9 Go to cover page 170C4 N4 h t t p w w w w j e l n e t ...
Страница 37: ...37 9 Go to cover page 170C4 N4 Power Schematic Diagram h t t p w w w w j e l n e t ...
Страница 41: ...41 9 Go to cover page Power C B A 170C4 N4 h t t p w w w w j e l n e t ...
Страница 42: ...42 9 Go to cover page Control board Diagram and C B A 170C4 N4 h t t p w w w w j e l n e t ...
Страница 43: ...43 9 Go to cover page Scaler board C B A 170C4 N4 h t t p w w w w j e l n e t ...
Страница 44: ...44 9 Go to cover page Scaler board and C B A 170C4 N4 h t t p w w w w j e l n e t ...