1-5
SPECIFICATIONS
• GENERAL
Power requirements
AC 110-240V, 50/60 Hz
Power consumption
30W
Dimensions (approx.)
430x69x280 mm (w x h x d)
Mass (approx.)
3.8 Kg
Operating temperature
5°C to 35°C
Operating humidity
5 % to 90 %
Television system
PAL B/G colour system
Recording format
PAL
• RECORDING
Recording format
DVD Video Recording, DVD-VIDEO
Recordable discs
DVD+ReWritable, DVD+Recordable
Recordable time
Approx. 1 hour (HQ mode), 2 hours (SQ mode),
4 hours (LQ mode), 6 hours (EQ mode)
Video recording format
Sampling frequency
27MHz
Compression format
MPEG 2
Audio recording format
Sampling frequency
48kHz
Compression format
Dolby Digital
• PLAYBACK
Frequency response
DVD (PCM 48 kHz): 8 Hz to 22 kHz, CD: 8 Hz to 20 kHz
DVD (PCM 96 kHz): 8 Hz to 44 kHz
Signal-to-noise ratio
More than 100 dB (AUDIO OUT connector)
Harmonic distortion
Less than 0.008% THD (AUDIO OUT connector)
Dynamic range
More than 95 dB (AUDIO OUT connector)
• INPUTS
ANTENNA IN
Antenna input, 75 ohms
VIDEO IN
1.0 Vp-p 75 ohms, sync negative, RCAJack x 1, SCART x 2
AUDIO IN
0 dBm more than 47 kohms, RCA Jack x 1, SCART x 2
SUPER IN
(Y)1.0V(p-p), 75Ω, negative sync, Mini DIN 4-pin x 1
(C) 0.3V(p-p), 75Ω
• OUTPUTS
VIDEO OUT
1 Vp-p 75 Ω, sync negative, RCAjack x 1
Audio output (digital audio)
0.5 V (p-p), 75 Ω, RCA jack x 1
Audio output (analog audio)
2.0 Vrms (1 KHz, 0 dB), 600 Ω/SCART
Summary of Contents for DR7400
Page 1: ...SERVICE MANUAL LG DR 7400 MODEL ...
Page 20: ......
Page 24: ...2 MPEG CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T 3 16 3 17 ...
Page 25: ...3 18 3 19 3 DSP CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 26: ...4 RF CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T 3 20 3 21 ...
Page 27: ...3 22 3 23 5 TUNER MPX ADC DAC JACK CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 28: ...A B C D E F G H I J K L M N O P Q R S T 3 24 3 25 6 FRONT JACK CIRCUIT DIAGRAM ...
Page 29: ...3 26 3 27 A B C D E F G H I J K L M N O P Q R S T 7 KEY CIRCUIT DIAGRAM ...
Page 30: ...3 28 3 29 8 TIMER CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 35: ...3 38 3 39 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP SIDE ...
Page 36: ...3 40 3 41 2 MAIN P C BOARD BOTTOM SIDE ...
Page 37: ...3 42 3 43 3 I O P C BOARD TOP SIDE 4 JACK P C BOARD BOTTOM SIDE ...
Page 38: ...3 44 3 45 5 KEY P C BOARD 6 FRONT P C BOARD 7746AA 8 POWER P C BOARD LOCATION GUIDE ...