11

Digital Board

Basic Engine

1.2 General:

Power Supply

1.3.4 Receiver:

Consumption

Standby power consumption

127V /37 110V - 240V /55 220V - 240V /75/97 25 W (typical) < 3 W

1.3 RF Tuner

Test equipment: Fluke 54200 TV Signal generator Test streams: Philips Standard test pattern

1.3.1 System NTSC-M

Frequency range Gain: (ANT IN - ANT OUT) Radio Interference / max. input voltage, at 750, 3 tone method (< -40dB)

1.3.3 Modulator:

Video Modulation Frequency response Audio Modulation 1kHz tone

no limit

80%±15% 0 ± 3dB, 0...4.2MH ± 12kHz, tol. ± 4kHz

PLL tuning with AFC for optimum reception

Frequency range Sensitivity at 40 dB S/N

1.3.5 Video Performance:

Channel 25 / 503,25 MHz, Test pattern: standard test pattern. RF Level 74dB|jV Measured on Cinch Out Frequency response

1.3.6 Audio Performance:

55 - 805 MHz < 60dBjiV at 75 n (video unweighted)

Audio Performance Analogue - HiFi:

Frequency response at Cinch (L+R) output

S/N according to DIN 45405, 7, 1967

and PHILIPS standard test pattern video signal : > 45dB

Harmonic distortion (1 kHz, ± 25

1.3.7 Tuning

Automatic Search Tuning

Scanning time without antenna : Stop level (vision carrier) :

Maximum tuning error during operation :

Manual Tuning

Manual selection in "STORE" mode typ. 3 min. > 37dB|jV

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