Philips AZ5738 Service Manual page 12

CIRCUIT DIAGARM - AUDIO BOARD (NEW)
PART 2
AVCC12
VREF3
BC50 BC50
EC26 EC26
100uF/16V 100uF/16V
0.1uF 0.1uF
AGND
V+5V
R15 R15
75 75
R14 R14 C30 C30
NC/0 NC/0
L20 L20
EC28 EC28
C32 C32
CVB1 Q6 Q6
3
A733(DIP) A733(DIP) 100pF 100pF
220uF/16V 220uF/16V
VGND
6-5
R123 R123
10K 10K
AFR
AFR 1
AFL
AFL 1
DA_L
DA_L 2
R124 R124
DA_R
DA_R 2
10K 10K
DA_R R6 R6
DA_L R18 R18
VGND
V+5V
EC? EC?
47u 16V 47u 16V
V_COMP
VVCC3
D6 D6
CVB1
R65 R65 82 82
10pF 10pF BAV99 BAV99
R69 R69 1K 1K V_FSADJ
VGND
1uH 1uH CVB1_O
C33 C33 CVB1_O
CVB1_O
100pF 100pF CVB1
TV_DAC0
VGND
V_FSADJ
V_FSADJ
V_COMP
V_COMP
EC2 EC2
180 180 R9 R9 100 100
C2 C2 10uF/16V 10uF/16V
C4 C4
470 470 Q4 Q4
200pF 200pF R12 R12 2N3904 2N3904 47pF 47pF
AGND
AGND
AGND
EC4 EC4
180 180 R21 R21 100 100
C6 C6 10uF/16V 10uF/16V C8 C8
R24 R24 470 470 Q5 Q5
200pF 200pF
2N3904 2N3904 47pF 47pF
AGND
AGND
AGND
1
2
2
2
6-5
P+12V
P+5V
R126 R126
2.2K 2.2K
R125 R125 7.5K 7.5K
Q1 Q1
Power On Mute
1 3
2N3906 2N3906
R2 R2 10K 10K
Q2 Q2
Power Off Mute
EC1 EC1 220u/16V 220u/16V 1 3
AGND
2N3906 2N3906
R4 R4 10K 10K
P+5V
DVCC3 Q3 Q3
1 3
2N3906 2N3906
AFR
R10 R10
3.3K 3.3K
R13 R13 10K 10K
2 AUDIO_MUTE
AFL
AVCC12
BC1 BC1
0.1uF 0.1uF
AGND