Philips DVDR7250H, Service Manual, Page: 2 / 72

EN 2 3139 785 31800
1.
Technical Specifications and Connection Facilities
1. Technical Specifications and Connection Facilities
1.2 Read / Write Speed
Type of Disc (Function) Disc Rotation Speed
Read Speed CD 7X CAV
Read Speed DVD 4X CAV
Write Speed DVD+R/RW 2.4X ZCAV
Write Speed DVD-R/RW 2X
1.3 General:
Mains voltage : 198V – 276V
Mains frequency : 47Hz – 63Hz
Power consumption (record) : <75W
Standby Power Consumption : <4W
Eco stand-by : <3W
1.4 RF Tuner (Analogue)
1.4.1.1 System:
PAL B/G, PAL D/K, SECAM L/L’, PAL I
1.4.1.2 RF – Loop Through:
Frequency range : 45MHz – 860MHz
Gain: (ANT IN - ANT OUT) : -6dB to 0dB
1.4.1.3 Receiver:
PLL tuning with AFC for optimum reception
Frequency range : 45.25MHz – 857MHz
Sensitivity at 40dB S/N
(video unweighted) : ≤ 60dBμV at 75Ω
1.4.1.5 Video Performance:
Channel 25 / 503,25 MHz,
Test pattern: PAL BG PHILIPS standard test pattern,
RF Level 74dBV
Measured on SCART 1
Frequency response : 0.1MHz – 4MHz ± 3dB
Group delay (0.1 MHz - 4.4 MHz) : 0 nsec ± 150 nsec
1.1 PCB Locations
Figure 1-1
Fronts Boards
(Behind the Front Plate)
Digital Board
Analogue Board
DTTM
PSU Board
(Below HDD)
Jeanne van Woerkom electra
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