Philips 32PF1700T/96 Service Manual page 67

3. Audio pr ocessor and Power Amplifier
NOTE:I2C ADDRESS SELECT
R904 10 R905
[1492]
[5,10] SCL_CONN
R913 100
[5,10] SDA_CONN
R914 100
[7] I2S_SL_AMP
[7] I2S_WS_AMP
[7] I2S_DA_OUT
[3] I2S_DA_IN0
L905 Z220
+5VA
BOM Replace 0 ohm C926 C927
10U K 1.5N M
[3] I2S_CLK
[3] I2S_WS
[7] MSP_RST1
Audio Out
C948 R924
2 1
[1] AV_OUT_R
10U M 16V
C956 R925
2 1
[1] AV_OUT_L
10U M 16V
R926
[8] AUDIO_R_OUT
R927
[8] AUDIO_L_OUT
HEAD PHONE
R931 R932 R928 R929
+5VA
R936 0_DNP
[10] MSP_RST
The audio processo
volume of all audio input source. The MSP 4440K family of single-chip Sound
Processors covers the sound processing of NTSC TV -Standards, as well as the SAP
sound standards and FM stereo radio. The full TV sound processing, starting with
analog sound IF signal-in, down to processed analog AF-out (baseband audio), is
perform ed on a single chip. Fig. 1–1 shows a simplified functional block diagram of
the MSP 4440K.
Audio processor Circuit
R906 0 C903 C904
[7] MCK_AMP
3.3P C
C963 3.3P C
Y901
22P J_DNP
18.432MHZ
[5]
T901
0_DNP
4.7K 4.7K T903
1
I2C_CLK
2
I2C_SDA
3
I2S_SL
4
I2S_WS
5
I2S_DA_OUT
6
I2S_DA_IN1
7
ADR_DA
U901
8
ADR_WS
MSP4440K-D6
9
ADR_CL
10
DVSUP
11
DVSS
C928 C929
12
I2S_DA_IN2
220P J 470P J
13
NC
14
I2S_CL3
15
I2S_WS3
16
RESETQ
17
DACA_R
220
220
470
470
R923 +12VIN2
D901
DNP L908 Z220
4.7K
MSP_RST1 C960
+
+ C942 47U 16V
10U M
16V
r is used for TV tuner sound decod
C905 +5VA
56P J
[TUNER] L902
Z220
BOM Replace 0 ohm
TV_SIF
C910 C911 C912
10U K 470P J 1.5N M
C914 C915
56P J 56P J
C919 C918
49
AVSUP
48
AVSS
0.1U K 10U K
47
MONO_IN
46
VREFTOP
C920 330N Z
45
SC1_IN_R
C921 330N Z
44
SC1_IN_L
43
ASG1
42 C922 330N Z
SC2_IN_R
C923 330N Z
41
SC2_IN_L
C924 330N Z
40
ASG2
C925 330N Z
39
SC3_IN_R
C930 330N Z
38
SC3_IN_L
C931 330N Z
37
ASG4
36
SC4_IN_R
35
SC4_IN_L
C940 0.1U K
34
AGNDC
C941 10U K
33
AHVSS
BOM Replace 0 ohm
L906 Z220
C945 C946 C943
C947 10U K
1.5N M 470P J 10U K
C944 10U K
R930 220_DNP
R933 220_DNP
R934 220_DNP
R935 220_DNP
BOM Replace 0 ohm
+9V_MSP
U902
G78M09T45U
L907 Z220
1 3
VI VO
1A
C959 C962
C961 +
47U 16V 0.1U K
0.33U Z
IMP1.0A LA
d
R915 470
PC_AUD_R
R916 470
PC_AUD_L
R917 470
DVI_AUD_R
R918 470
DVI_AUD_L
R919 470
AV4_AUD_R
R920 470
AV4_AUD_L
R921 470
AUD_MUX_R
R922 470
AUD_MUX_L
+9V_MSP
K A
D902 LL4148
e and controlling
67
[2]
[2]
[PC]
[3]
[3]
[1]
[DVI]
[1]
[5]
[AV4 Side]
[5]
[HEF4052]