Service manual

A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
DV50A
DV18A
DV18ADV18A
AV_V90
GPIO
DV50A
GPIO
DV33A
DV50B
5VSB
AV_V90
DV18A
TU_V50
DV50A
DV120B
TU_V50
CR-SW
GND
DV50-CR
DV33A-CR
GPIO
LVDS-SEQ
CR-SW
LVDS-SEQ
ATSC-SW
ATSC-SW
DV50-ATSC
DV120-ATSC
LVDS-VDDDV120B
5VSB
5VSB
DV33A DV18A
DV33A
DV18A DV18A
DV33A
AV_V90
DV33A
TU_V50DV50B
DV50A
DV50A
DV120B
5VSBLVDS-VDD DV50B5VSBDV120B
DV120B
DV120B
5VSB
DV33A
5VSB
DV33A
DV50-CR
DV33A-CR
DV120B
DV120-ATSC
5VSB
5VSB
DV50-ATSC
DV50A
DV18A3,4
DV120B1,8,11
DV50A3,6,7
DV50B5,7,9,11
DV33A1,3,4,6,7,9,10,11,12
5VSB1,4,7,12,14
GND1,3,4,5,6,7,8,10,12,13,14
TU_V508
AV_V909
LVDS-SEQ 4
DV33A-CR7
DV50-CR7
CR-SW 4
GPIO 1,4
ATSC-SW 4
DV120-ATSC13
DV50-ATSC13
LVDS-VDD12
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
AmTRAN
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESING BY:
MT8205 DIGITAL POWER
VIZIO L32 HDTV10A_MTK (3320-0102-0150)
2
14
APCN05080010
VINC-M3.PCB
00
03
L32HDTV_MTKM0.DSN
0171-2272-1973
Monday, March 13, 2006
1.25x(1+300/680)=1.8V
MT8205 DIGITAL POWER & DECOUPLING
0402 PUT ON NEARLY BGA
0402 PUT ON NEARLY BGA 0402 PUT ON NEARLY BGA
Low ESR
Low ESR
FOR Tuner
Adj ： 1.25x(1+300/680)
Adj
： 1.23x(1+R2/R1)
1.23x(1+1.69K/1K)=3.3V
Low = > STANDBY POWER OFF
High = > STANDBY POWER ON
Dual P-Ch
High = > STANDBY POWER ON
Low = > STANDBY POWER OFF
ALL RESISTORS 0402 WATT,5% UNLESS NOTED.
ALL CAPACITOR VALUES IN uF UNLESS NOTED.
ALL RESISTORS VALUES IN OHMS UNLESS NOTED.
NOTE : NC MEANS "NOT CONNECTED ON PCB BOARD"
ALL CAPACITORS 50 VOLT & 105"C UNLESS NOTED.
M= METAL 1%
ALL RESISTORS 25 VOLT IN .1uF UNLESS NOTED.
ATSC POWER
CARD READER POWER
Low = > STANDBY POWER OFF
High = > STANDBY POWER ON High = > STANDBY POWER ON
Low = > STANDBY POWER OFF
增加 Q20
R378
47K
L5 0/0805
0805L
+
CE108
0.1uF/50V
R125
10K
CB10
0.1uF
0402C
R337
10K
R124
10K
CB11
0.1uF
0402C
+ CE13
220uF/16V
R17
0
CB29
0.1uF
0402C
R128
47K
R22
10K
R16
330
+ CE107
0.1uF/50V
+ CE8
220uF/16V
Q18
2N3904
2N3904-SOT23
2
1 3
+
CE10
1000uF/16V
R12
0/0805
R381
47K
R379
47K
CB26
0.1uF
0402C
CB183
0.1uF
0402C
R121
10K
Q17
2N3904
2N3904-SOT23
2
1 3
+
CE17
22uF/16V
R129 10K/N.C
L7 80ohm
0805L
R19
10K
CB30
0.1uF
0402C
+
CE105
0.1uF/50V
CB24
0.1uF
0402C
R15
NC
P-CH
U2
IRF7316
D2
5
S1
1
G1
2
S2
3
G2
4
D2
6
D1
7
D1
8
R380
47K
L23
3.5x6x1.0
+
CE16
0.01uF/50V
F3 2A/125V
CB182
0.1uF
0402C
L4 70uH
R338
10K
CB13
0.1uF
0402C
Q16
2N3904
2N3904-SOT23
2
1 3
Q11 PNP BCE
CB7
0.1uF
0402C
Q19
2N3904
2N3904-SOT23
2
1 3
CB184
0.1uF
0402C
CB31
0.1uF
0402C
R127
10K
Q22 PNP BCE
R210
10K
Q3
2N3904
2N3904-SOT23
2
1 3
R11
0/N.C 0805
L24
80ohm
0805L
CB28
0.1uF
0402C
D2 SB560
U4
LM2596S-3.3
LM2596
FB
4
OUT
2
VIN
1
GNG
3
ON
5
TabGND
6
P-CH
U19
IRF7316
D2
5
S1
1
G1
2
S2
3
G2
4
D2
6
D1
7
D1
8
R152
10K
P-CH
U3
IRF7316
D2
5
S1
1
G1
2
S2
3
G2
4
D2
6
D1
7
D1
8
R324
10K
CB95
0.1uF
0402C
Q21 PNP BCE
CB14
0.1uF
0402C
CB32
0.1uF
0402C
CB93
0.1uF
0402C
L15
3.5x6x1.0
Q24 PNP BCE
CB185
0.1uF
0402C
R325
10K
CB16
0.1uF
0402C
CB25
0.1uF
0402C
R20 47K
+
CE106
0.01uF/50V
+
CE9
220uF/16V
Q20 PNP BCE
L25
80ohm
0805L
L16
NC 0805L
U5
AZ1086D-1.8
1085
ADJ/GND
1
OUT
2
IN
3
CB12
0.1uF
0402C
R14 560
CB186
0.1uF
0402C
Q23 PNP BCE
Q10
2N3904
2
1 3
R126
10K
U6
UTC78D09A
1085
ADJ/GND
2
OUT
3
IN
1
CB9
0.1uF
0402C
CB15
0.1uF
0402C
P-CH
U7
IRF7316
D2
5
S1
1
G1
2
S2
3
G2
4
D2
6
D1
7
D1
8
C3
0.1uF
0402C
CB27
0.1uF
0402C
R339
10K
CB8 NC
+
CE19
0.1uF/50V
+
CE12
220uF/16V
CB94
0.1uF
0402C
R123
10K
CB23
0.1uF
0402C
R326
10K
C4
0.1uF
0402C
R18 0
+
CE11
220uF/16V
+
CE18
220uF/16V
CB17
0.1uF
0402C
R10
10K
R21 10K