Philips AZ5740, Service Manual, Page: 5 / 20

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CIRCUIT DIAGRAM - MAIN BOARD
PART 1
AFL
AFR
DA_R
DA_L
AFL
AFR
DA_R
DA_L
CVB1
CVB1
V_COMP
V_COMP
CVB1_O
CVB1_O
V_FSADJ
CVB1
V_FSADJ
AGND
AGND
AGND
AGND
AGND
AVCC12
AGND
AGND
AGND
P+5V
P+5V
DVCC3
AVCC12
VREF3
AGND
P+12V
VGND
VGND
VVCC3
VGND
V+5V
V+5V
VGND
AUDIO_MUTE 2
DA_R 2
DA_L 2
AFL 1
AFR 1
V_FSADJ 2
TV_DAC0 2
CVB1_O 1
V_COMP 2
MUTE
2
Power Off Mute
Power On Mute
R12
470
R12
470
R14
NC/0
R14
NC/0
L20 1uH L20 1uH
BC1
0.1uF
BC1
0.1uF
BC50
0.1uF
BC50
0.1uF
R125 7.5K R125 7.5K
D8 1N4148 D8 1N4148
R6 180 R6 180
R4 10K R4 10K
EC1 220u/16V EC1 220u/16V
C8
47pF
C8
47pF
EC2
10uF/16V
EC2
10uF/16V C2
200pF
C2
200pF
C6
200pF
C6
200pF
R124
10K R124
10K
2
1 3
Q3
2N3906
Q3
2N3906
R65 82 R65 82
C33
100pF
C33
100pF
Q4
2N3904
Q4
2N3904
EC4
10uF/16V
EC4
10uF/16V
R10
3.3K R10
3.3K
R13 10K R13 10K
Q5
2N3904
Q5
2N3904
EC28
220uF/16V
EC28
220uF/16V
3
1
2
Q6
A733(DIP)
Q6
A733(DIP)
EC?
47u 16V
EC?
47u 16V
R126
2.2K R126
2.2K
R24 470 R24 470
2
1 3
Q1
2N3906
Q1
2N3906
C32
100pF
C32
100pF
R123
10K R123
10K
R9 100 R9 100
C4
47pF
C4
47pF
R21 100 R21 100
2
1 3
Q2
2N3906
Q2
2N3906
R69 1K R69 1K
C30 10pF C30 10pF
EC26
100uF/16V
EC26
100uF/16V
R18 180 R18 180
D6
BAV99
D6
BAV99
R2 10K R2 10K
R15
75
R15
75