5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
SOP8
SOP8
MUTE_Circuit
控制屏的
16
:
9
,
4
3
:
2005.12.12
P
ET
716 DVD MAIN BOARD
B
A/V IN/OUT
C
4
4
Title
Size
Document Number
Rev
Date:
Sheet
of
LMAIN1
89_AL
MUTE_DAC
LMAIN1
VER
A_MUTE
A_MUTE
RMAIN1
9V_IN
A_VCC
INT/EXT
VCC3
89_AR
89_AL
SP_R
SP_L
OUT_R
SP_R
OUT_L
OUT_R
SP_L
PHONE_R
OUT_L
PHONE_L
A_VCC
A_VCC
9V_IN
SC
MR_OUT
A_MUTE
OUT_L
R_HP_IN
OUT_R
A_MUTE
L_HP_IN
SY
DC_IN
WIDE
INT/EXT
YUV3
YUV2
YUV1
YUV1
CVBS_1
YUV2
YUV3
RMAIN1
89_AR
SY
CVBS_1
9V_IN
A_L_SPEAKER
ML_OUT
A_R_SPEAKER
MR_OUT
R_HP_IN
A_R_SPEAKER
L_HP_IN
A_L_SPEAKER
A_MUTE
ML_OUT
WIDE
DV33
DV33
MUTE_DAC
A_VCC
VER
SC
MUTE_DAC
2
GND
1,2,3,5
9V_IN
1
A_VCC
INT/EXT
2
VCC3
1
89_AR
2
89_AL
2
A_VCC
DC_IN
1
WIDE
2
INT/EXT
2
YUV1
2
YUV2
2
YUV3
2
DV33
2
9V_IN
VCC3
AUD_GND
AUD_GND
AUD_GND
9V_LCD
GND
GND
AUD_GND
AUD_GND
AUD_GND
AUD_GND
AUD_GND
AUD_GND
AUD_GND
AUD_GND
9V_IN
AUD_GND
+
C43
100uF/10V
C57
NC 330P
BC14
0.1uF
VJ1
VOLUME 10K
1
2
3
4
5
1
2
3
4
5
R75
75
R89
4.7R
+
C46
10uF/10V
D6
1N4148
1
2
C42
2000p
R76
4.7k
R78
75
+
-
U9B
NJM4558
5
6
7
8
4
R88
4.7R
R65
24K
R83
200K
C44
270p
BC15
0.1uF
R72
680K
BC13
0.1uF
R66 10K
C54
100P
L1
L2
R1
R2
GND
SW1
SW2
J10
PHONE-JACK
1
2
3
4
5
6
7
8
9
10
11
R61
5.6K
CB22
0.1uF
R67
5.1k
R57
24K
+
-
U9A
NJM4558
3
2
1
8
4
+
EC14
220uF/16V
L
GND
R
CVBS
AV_1
1
2
3
4
5
C47
2700p
Q12
3904
1
3
2
+
EC13
1uF/50V
R50 100K
+
C49
220uF/16V
Q16
3904(NC)
1
3
2
BC6
0.1UF
R68 330R
+
EC18
1uF/50V
R58 10K
+
EC15
100uF/16V
R55
10k
R80
330
C38
270p
C55
100P
R62
1K
R38 100K
L22 1.8uH
R85
10K
+
C39
10uF/10V
+
C59
100uF/16V
Q17
3904(NC)
1
3
2
R86
10K
+
EC16
220uF/16V
+
C45
10uF/10V
R87
200K
L24 1.8uH
J9
8PIN/1.25mm
1
2
3
4
5
6
7
8
R74
470
R90
470
R63 10K
R77
100K
C56
100P
+
C40
10uF/10V
C58
NC 330P
U10
APA2822
1
2
3
4
5
6
7
8
R59
5.1k
C50
100P
R70
1K
+
EC17
100uF/16V
R81
0_0805
Q13
3904
1
3
2
C51
100P
R84
470
CB38
0.1uF
R37 1R/0805
D7
1N4148
1
2
Q14
3906
1
3
2
+
EC12
100uF/16V
C48
2000p
C53
100P
R73
75
R60
330R
R69
5.6K
+
C52
100uF/16V
R79
330
R71
1K
R64
10K
J11
4PIN/1.25mm(TO SPEAKER)
1
2
3
4
C41
2700p
L23 1.8uH
R53
4.7K
Q15
3906
1
3
2
R82
1R(0805)
7.0 Electrical Diagram
Summary of Contents for PET716
Page 7: ...3 0 INSTRUCTION FOR USE ...
Page 15: ...5 0 TROUBLESHOOTING SYMPTOM NO SOUND FROM HEADPHONE ...
Page 18: ...6 0 BLOCK DIAGRAM ...