Philips DVDR615 Service Manual

Circuit-, IC descriptions and list of abbreviations
EN 137DVDR615/69 9.
9.2.4 Backend Digital part
Record Mode
Figure 9-5 Chrysalis Block
Video Part
The analogue video input signals CVBS, YC and YUV/RGB
(RGB for Euro and YUV for USA) from the MOBO analog board
are routed from connector [1901] to IC [7007] SAA7118 , Video
Input Processor.
The digital video input signals are routed from the DV-in
connector [1000] via ICs [7000], 1394 PHY and [7001] 1394
LINK to Chrysalis PNX7100 [7800].
The multi-standard Video Input Processor VIP, [7007] encodes
the analogue video to digital stream (CCIR656 format). It
provides filtering of the analogue signals and separation of
luminance and chrominance by a comb filter. The output
stream, named ITU_IN(7:0), is then routed to the Chrysalis
[7800]. This IC encodes and decodes the digital video stream
into/from MPEG2 format.
Audio Part
I
2
S audio is sent from the MOBO analog board to the Chrysalis
[7800] via connector [1902]. The Chrysalis [7800] compresses
the I
2
S audio data into an MPEG1-L2/AC3 audio stream.
Front-end I
2
S
Chrysalis [7800] interfaces directly with the Centaurus [7500]
and buffers the in- and out-going data streams.
In the Chrysalis [7800], the video MPEG2 stream and the audio
AC3 stream are multiplexed into an I
2
S stream. The serial data
are sent to the Centaurus [7500] for recording.
Playback Mode
During playback, the serial data from the Centaurus [7500] is
going directly to the Chrysalis [7800] via the serial front-end I
2
S
interface. The Chrysalis [7800] is an MPEG CoDec and has
the following outputs:
• To the MOBO analog board: analogue video RGB, YC,
CVBS on connector [1901].
•I
2
S audio (PCM format) on connector [1902].
• SPDIF audio (digital audio output) on connector [1902].
• Communication gateway (RS232) on connector [1907].
(1) analogue CVBS / YC and RGB/YUV
(2) analogue CVBS, YC, RGB/YUV
SDRAM
4M X 16 x 4
TO/FROM FRONTEND PART
UART I2S
I2C
EEPROM
64Kbit
VIP
SAA7118
1394
PID1394P25
I2C
EEPROM
64Kbit
CHRYSALIS
PNX7100
7800
1FH VIDEO
OUT
(2)
DIG. AUDIO IN
OPT. & COAX
DIG. AUDIO OUT
I2S AUDIO OUT
I2S AUDIO IN
1FH VIDEO IN
(1)
I2C 0
I2C 1
7007
I2C0
CCIR656
CLOCK
7000
1000
OPTIONAL
7001
-5V
FROM POWER SUPPLY
5V 12V3V3
XIO_1 XIO_0
1394
PID1394L40
1394
CONNECTOR
NORFLASH
4M
7902/7903
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Philips DVDR615 Specifications

Picture/Display

Aspect ratio	4:3, 16:9
D/A converter	10 bit, 54 MHz
A/D converter	10 bit, 54 MHz

Sound

D/A converter	24 bit, 96 kHz
A/D converter	24 bit, 96 kHz
Signal to noise ratio	90
Distortion and Noise (1kHz)	83 dB
Crosstalk (1kHz)	105 dB
Dynamic Range (1kHz)	83 dB

Power

Power supply	110V, 60Hz
Power consumption	27 W
Standby power consumption	< 4 W

Dimensions

Set dimensions (W x H x D)	435 x 285 x 65 mm
Set weight	3.5 kg
Packaging dimensions (W x H x D)	518 x 159 x 383 mm
Weight incl. Packaging	5.5 kg