14
Descriptions of the pins:
No. Pin name
Connections
No.
Pin name
Connections
3
PCSTFILT
VCO PLL filter
11
SDA
IIC data input
4
PCPLDET
Driving level test
12
SCL
IIC clock input
5
PISIF
SIF signal test
24
PCALCFIL
ALC filter
6
GND
GND
25/26 R/L OUT
TVF_R/L output
9
SIF DEMOD SIF demodulator
27
PCREC
Reference voltage
10
MUTE
Mute (DC=5V)
31
VCC
9V power
3. R2S15900SP audio processor with surround stereo
The audio signal from YPrPb/YcrCb or VGA input interface is selective sent to R2S15900SP through the
multi-channel selector HEF4052BT, while the audio signal from the AV inputs is sent to R2S15900SP
directly.
After the processing of bass, treble, balance and AVL by R2S15900S, all these processed audio signals
will be output to audio amplifier TPA1517 (for 15 inch models) or AN5277 (for other models) to amplify,
then the amplified signal will be sent to the speaker to output. The Fig.1-3 is the block diagram of
AN5277.
Descriptions of the pins of R2S15900SP
Pin Function
Pin
Function
2, 7
Left/right input for Channel 1
17, 18
SDA, SCL
3, 26
Left/right input for Channel 2
28
VCC
4, 25
Left/right input for Channel 3
11, 19
LOUT, ROUT
4. Inner block diagram of AN5277 audio amplifier with single end and double channels
Summary of Contents for LC20Y19
Page 1: ...LCD TELEVISION LC20Y19...
Page 13: ...11 BLOCK DIAGRAM...
Page 15: ...13 2 Inner block diagram of LA72700 stereo decoder...
Page 17: ...15 5 Inner block diagram of TPA1517 6W stereo audio amplifier...
Page 24: ...EXPLODED VIEW 22...
Page 42: ...301 Q20Y15 28MB RC Q28M 0BREMOTE CONTROL UNIT PRIMA NEW...
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