Main Board Circuit Diagram - Philips 22PFL5557/V7 Service Manual

5

6. Main Board Circuit Diagram

Main Chip POWER
1.32V DC-DC
SY8008B SOT-23 SY8008B SOT-23
D
5VA
L101 L101 10uH_1.5A 10uH_1.5A
4
VIN
R101 R101
SY8008B SY8008B
10k 10k
SOT-23 SOT-23
C101 C101 C108 C108
10uF(X5R) 10uF(X5R) 0.1uF 0.1uF
1
EN
C107 C107 0.1uF 0.1uF
NC/10uF(X5R) NC/10uF(X5R)
靠近DC-DC
C109 C109
V =0.6X(1+R /R
out
+3.3V_Normal
C
U103 U103
5VA L108 L108 SY8008B SOT-23 SY8008B SOT-23
10uH_1.5A 10uH_1.5A
4 3
VIN LX
SY8008B SY8008B
R110 R110
SOT-23 SOT-23
C118 C118 1K 1K
10uF(X5R) 10uF(X5R)
1 5
EN OUT/FB
C119 C119
NC/10uF(X5R) NC/10uF(X5R) C127 C127
靠近DC-DC 100PF 100PF
B
PANEL POWER
NOTE4 1.26A(根据屏不一样，电流不一)
Q101 Q101
AO3407 AO3407
R117 R117 NC/0R-0805 NC/0R-0805 MAX 600mA 2 3
12VA
5VA
R118 R118 0R-0805 0R-0805 C137 C137
0.1uF 0.1uF R120 R120
NC/51-0603 NC/51-0603
R121 R121
1E56 BIT3
ON 270K 270K
R122 R122 NC/100K NC/100K
1
OFF
R123 R123 1K 1K Q110 Q110
1
2 PANEL_ON/OFF
3904 3904
R124 R124
10K 10K
R27上拉改下拉
改善开机瞬间尖峰
A
5
4
L102 L102 1.32V
2.2uH_1.5A 2.2uH_1.5A
U101 U101
R102 R102
113K 113K
C103 C103
33P 33P
3
LX
靠近DC-DC
R103 R103
0R-0402 0R-0402
C104 C104 10uF(X5R) 10uF(X5R)
5
OUT/FB
C105 C105 10uF(X5R) 10uF(X5R)
R104 R104 C102 C102 0.1uF(X7R) 0.1uF(X7R)
100K 100K
ATV:569mA(max);
AV:486mA;
)
down
up
ATV:315mA(max)
ATV:190mA(HDMI不工作时)；
L107 L107 +3.3V_Normal
2.2uH_1.5A 2.2uH_1.5A
同时供电给HDMI SWITCH
R109 R109
120K 120K
C121 C121
33P 33P
Temperature 50℃
+2.5V_Normal
R112 R112 +3.3V_Normal D101 D101
330K 330K 1N4001 1N4001
1 2 Vpp=21mV
R115 R115
+ +
100K 100K
C129 0.1uF(X7R) C129 0.1uF(X7R) EC104 220uF/16V EC104 220uF/16V
C130 NC/0.1uF(X7R) C130 NC/0.1uF(X7R) C134 0.1uF(X7R) C134 0.1uF(X7R)
C132 10uF(X5R) C132 10uF(X5R) 靠近DC-DC
C133 10uF(X5R) C133 10uF(X5R)
Vpp=100mV
VCC-Panel
C138 C138 C139 C139
0.1uF 0.1uF NC/10P NC/10P
Q102 Q102
NC/2N7002 NC/2N7002
4
3
DDR_POWER
U105 U105
5VA SY8008B SOT-23 SY8008B SOT-23
L106 L106 C114 C114
10uH_1.5A 10uH_1.5A 0.1uF(X7R) 0.1uF(X7R)
4 3
VIN LX
SY8008B SY8008B
R106 R106
SOT-23 SOT-23
C116 C116 1K 1K
10uF(X5R) 10uF(X5R)
1 5
EN OUT/FB
C117 C117
10uF(X5R) 10uF(X5R) C115 C115
靠近DC-DC 100PF 100PF
+3.3V_Standby
Vpp=20mV
U104 U104
AMS1117-3.3V AMS1117-3.3V
C135 0.1uF(X7R) C135 0.1uF(X7R)
C150 NC/10uF/1206 C150 NC/10uF/1206
5Vstb
+3.3V_Standby
C120 C120
+ +
EC120 EC120 0.1uF(X7R) 0.1uF(X7R)
+ +
220uF/16V 220uF/16V
EC121 EC121
220uF/16V 220uF/16V
D版
C150放在板底，
靠近主芯片
18
3
2
ATV:117mA(max)
C111 C111 10uF(X5R) 10uF(X5R)
C151 C151 10uF/1206(板底) 10uF/1206(板底)
C113 C113 0.1uF(X7R) 0.1uF(X7R)
L105 L105 AVDD_DDR
2.2uH_1.5A 2.2uH_1.5A
1.812V
Vpp=23mV
R113 R113
120K 120K
C110 C110
33P 33P
靠近DC-DC
R108 R108
82K 82K
R111 R111
100K 100K
Standby:6.54mA;
刚开机：ATV:44.21mA
切到AV:18.56mA;
再切到HDMI:53.82mA;
再切回ATV:81.7mA(MAX);
Title Title Title
MST6M182VG MST6M182VG MST6M182VG
Size Size Size Document Number Document Number Document Number
01.DC-DC 01.DC-DC 01.DC-DC
C C C
Date: Date: Date: Friday, February 17, 2012 Friday, February 17, 2012 Friday, February 17, 2012
2
1
D
C
B
A
Rev Rev Rev
1.0 1.0 1.0
Sheet Sheet Sheet 1 1 1 of of of 9 9 9
1