Kenwood KVT-910DVD Service Manual page 42

KVT-910DVD/920DVD/930DVD/
940DVD/960DVD
5) Data forwarded to the Video Decoder Module and SPU Decoder Module is decoded and then forwarded
to the Video Interface Block, as shown in the diagram below(fig.4).
Data forwarded to the Video Interface Block is converted to 8-bit pixel data (ITU-R BT.601) either in
NTSC or PAL format (set by register). Then the data is synchronized with the H-Sync/V-Sync signal output
by the 27MHz clock and Video Ehcoder (ADV7170) and forwarded to the Video Encoder.
The data forwarded to the Audio Decoder Module is decoded by the format designated by the user, or
with the format recorded in the DVD video disk (Linear PCM, Dolby Digital, MPEG). At the same time, it is
SPDIF output using the same format as the decoded audio format. (DTS cannot be decoded and only
SPFIF output is possible.
The decoded data is synchronized to Audio CLK (384fs) after converting to audio data (SDAT,
LRCLK, BCLK) and hen forwarded to the Audio DAC (AK4353).
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CIRCUIT DESCRIPTION
Video Decoder
Module
SPU Decoder
Module
L64021
Pixel Data [7:0] (ITU-R BT.601)
H-Sync
Video
Interface
V-Sync
Block
27MHz
PLL
L64021
SDATA
LRCLK (fs)
BCLK
Audio
Audio CLK (384fs)
Interface
Block
384fs
PLL1700E
L64021
Video Interface
Block
fig.4
ADV7170
Video
Encoder
PLL1700E
fig.5
PLL
fig.6
Composite
R
G
B
AK4353
Audio
DAC
L ch
R ch