Philips DVDR3305/02, Руководство по обслуживанию

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EN 2 3139 785 3093x 1. Technical Speci fi cations and Connection Facilities
1. Technical Speci fi cations and Connection Facilities
1.1 PCB Locations
1.2 General:
Mains voltage : 220V – 240V
Mains frequency : 50 Hz
Power consumption (typical) : 25 W
Standby Power Consumption : < 4 W
1.3 RF Tuner
Test equipment: Fluke 54200 TV Signal generator
Test streams: PAL BG Philips Standard test pattern
1.3.1 System
PAL B/G, PAL D/K, SECAM L/L’, PAL I
1.3.2 RF - Loop Through:
Frequency range : 45 MHz – 860 MHz
Gain: (ANT IN - ANT OUT) : -6dB to 0dB
1.3.3 Receiver:
PLL tuning with AFC for optimum reception
Frequency range : 45.25 MHz – 857 MHz
Sensitivity at 40dB S/N : ≥ 60dB μ V at 75 Ω
(video unweighted)
1.3.4 Video Performance:
Channel 25 / 503,25 MHz,
Test pattern: PAL BG PHILIPS standard test pattern,
RF Level 74dBV
Measured on SCART 1
Frequency response : 0.1 – 4.00 MHz ± 3dB
Group delay (0.1 MHz - 4.4 MHz) : 0 nsec ± 150 nsec
1.3.5 Audio Performance:
Audio Performance Analogue - HiFi:
Frequency response at SCART 1
(L+R) output : 100 Hz – 12 kHz / 0 ±
3dB
S/N according to DIN 45405, 7, 1967
and PHILIPS standard test pattern
video signal : ≥ 50dB, unweighted
Harmonic distortion (1 kHz, ± 25
kHz deviation) : ≤ 1.5%
Audio Performance NICAM:
Frequency response at SCART 1
(L+R) output : 40 Hz – 15 kHz / 0 ±
3dB
S/N according to DIN 45405,7,1967
and PHILIPS standard test pattern
video signal : ≥ 60dB, unweighted
Harmonic distortion (1kHz) : ≤ 0.5%
Front boards
(Behind the
metal bracket)
Digital Board
Basic Engine
Analog Board