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ERISSON 21F1 - Page 4

ERISSON 21F1
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- 4 -
Test Condition
1 Picture Modulation 87.5%
2 Sound Modulation 27KHz Dev. For DK/I/BG
15KHz Dev. For M/N
3 Picture to Sound Ration 10dB
4 Sound Artificial Load Resistor 8 ohm
5 Video signal White and black
(three white & two black)
6 Audio signal 1KHz sine wave 0.5Wrms Convergence error test point on screen
7 Conditions of the TV setting:
A. Switch TV on and let it warm up for more than 30 minutes.
B. Connect RMS volt meter to speaker terminals and adjust theTV volume to get 500mW RMS power at each terminal.
C. Place the MINOLTA CA-100 test probe to white part of the screen,adjust the contrast until a reading of 80cd/m
2
is obtained.
D. Place the MINOLTA CA-100 test probe to black part of the screen,adjust the brightness until a reading of 2cd/m
2
is obtained.
E. Repeat step C & D until the exact luminance values is obtained or the nearest possible values you can get.then record the
luminance values & R.G.B gun voltage values at the same time. and take the largest values for measurement referenct.
F. Input standard color bar(100/0/75/0),then adjust the colour.until the waveforms at the blue gun of same level is obtained.
W
H
1/9H
1/9W
+P8
P5+
+P4
P2+
+P1
+P0
+P7 +P3 P6+
No. Items Instruction Typical Limit Unit
20 Raster rotation In all direction 4 6mm
21 Convergence error 0.4 0.6 %
22 White balance (8700°K) X 0.288 0.288±0.015
Y 0.298 0.298±0.015 /
23 Maximum full white At picture tube center 110 100 cd/m
2
24 H sync pull-in range ±500 ≥±200 Hz
25 V sync pull-in range 7 6Hz
26 Anode voltage 25 27.5 KV
27 Audio frequence response ±3dB ref. to 1KHz 0.2~8 0.2~8 KHz
28 Audio output power 1KHz 10% THD 2×1.6 2×1.6 W
29 Max audio output power 1KHz THD 20% 2×2 2×2W
50 KHz DEV.(BG/I/DK)
25 KHz DEV.(M/N)
30 THD Po=0.5W 1KHz 1 3%
31 Signal to buzz ratio 42 40 dB
32 Minimum volume hum 6 10 mVrms
33 Maximum woofer output power N/A N/A W
34 Woofer audio freqency response ±3dB ref. to 80Hz AV mode N/A N/A Hz
35 Bass control range 100Hz ref. to 1KHz AV mode N/A N/A dB
36 Treble control range 10KHz ref. to 1KHz AV mode N/A N/A dB
37 Balance Center N/A N/A dB
Max. N/A N/A
Min. N/A N/A
38 Volume control curve N/A /
39 Video input level 1.0 0.2 Vpp
40 Audio input level 0.5 0.5±0.3 Vrms
41 Video output level 1.0 0.2 Vpp
42 Audio output level 0.5 0.5±0.2 Vrms
43 Power consumpution Operating 80 95
Stand by 10 15 W
44 IR receiving distance ±30° 6 5m
45 X-ray radiation 0.1 0.5 mR/h
46 Dielectric strength AC 3KVrms 2 sec. 3 5 mArms