Dtv Mb Assy (12/16) - Pioneer PDP-507XC Service Manual

1

10.28 DTV MB ASSY (12/16)

DTV MB ASSY (12/16)
• POWER BLOCK
A
1
V+3V_D2
2
3
4
5
FB49 FB1206
6
7
FB50 FB1206
8
9
10
11
FB55 FB1206
12
12 HEADER
V+12V
R460
150
B
R461
150
D19
EC51 DNI
+
100uF/25V
C
1.2V 2A
D1.2V_BCM7038
D1 R346
3.9V 0
NI_0
R39
R347
3.9K_1%
For power
peotection
R348
10K_1%
D
1.2V
3.75 A
C183
0.01uF
E
4
SOT-223
Top-View
1 2 3
R448
0 (0805)
R449
0 (0805) DNI
R450
F
0 (0805)
R451
0 (0805) DNI
94
1
2
V+6.5V
V+5.1V
FB47 FB1206
C406 EC50
+
470uF/16V
+
C175 EC55 1uF (0603) -
470uF
1uF (0603)
16V
close to J21
AUD12V
C407
10nF
0402
EC56
C38
+
1uF
-
10V
470uF/16V
T4026
L9
4.7uH
R33
EC58
+ C442 2.2 ohm
330uF/16V/LZ
- 1nF
C414
C415 1nF
For EMI
0.01uF
Vref=0.9V
V+5.1V
D1.2V
D1.2V_BCM7038
3A MAX
TP28
TP FB117 FB 1206
3A MAX
3 A
FB118 FB1206 EC17 1000uF
6.3V
A1.2V
TP29
TP
A1.2V_BCM7038
3A MAX
750 mA
FB19 FB 01206 EC20 33uF/25V
DDR
Screw
hole
isolate
to DGN
add 4
Resistor
to DGN.
2
3
V+12V
EC48
C405 +
1uF (0603) 470uF/16V
-
10uF (0805)
V+5.1V
D9
BAT54A/SOT
R600
100K
C39 1uF
6
BOOT1
R29 3.3K
7
Q1 ISEN1
R31 22
5 4 5
UGATE1
4
PHASE1
6 3
R36 22
2
LGATE1
7 2
3
PGND1
8 1 9
VOUT1
FDS6912A
10
VSEN1
R41 1K
8
EN1
15
PG1
C48
12
SOFT1
0.1uF
11
OCSET1
C416
R45
0.1uF 47K
DL6.5V
U11
3
1uF/16V (0603)
C503
+ EC14 1085
10uF (0805) 16V
C178
330uF
330R3,1%
A
A
PDP-507XC
3
4
5V
V+6.5V
U10
3 2
Vin Vout
C502 1uF (0603)
C176 100,1%
R146
LD1117M3
10nF
R147
300,1% C177
C37
1uF
U13
C40 1uF
23
BOOT2
R344 3.3K
Q2
22
ISEN2
24 4 5
UGATE2
R345 22
25
PHASE2
3 6
22
27
LGATE2
R381
2 7
26
PGND2
20 1 8
VOUT2
FDS6912A
19
VSEN2
21
EN2
16
R42
PG2/REF
1K
17
SOFT2
C49
18
OCSET2
0.1uF
ISL6227CA
R46 C444
47K 0.1uF
A3.3V
A3.3V
R443
2
Vin Vout
C504 C505 0 (0805)
R148
200R3,1% 10uF (0805)
1uF (0603)
10nF/16V
R149
C180
A
A
R444
0 (0805)
R445
0 (0805)
4
550mA max.
C413
+ EC43
1uF (0603) C501
470uF
16V
10uF (0805)
V+5.1V
EC16
C441 +
1uF
10V -
470uF/16V
L10
R34 4.7uH
2.2 ohm
For EMI
C46
1nF
V+5.1V
Change
5V to
V+5.1V
A3.3V_BCM7038
300 mA
C179 + EC15
680uF
0.01uF 16V
A
VDAC_AVDD33
3.3VFE
+
C449 EC62
680uF
0.01uF 16V
A