Tuner Amp Unit (Sys Regulator Part) - Pioneer MVH-280FD Service Manual

A
2/11

TUNER AMP UNIT (SYS REGULATOR PART)

BUP14.4V
SYS+B5.7V VDD1.2V VDD3.3V SWVDD5V
VDD3.3
GND
PWR_Sys_Reg
A
2/11
SWVDD5V
D206 CMS30I30A
D202
CRG03
GND
GND
BCAP
GND
R234
L201
NM
GND
CTH1521-A-TLB
GND
22u
GND GND
GND
GND
C242
VDD1.2V
3216
10u/35
CCG1236-
SYS+B5.7V
C219
3216
10u/35
CCG1236-
C220
CCG1236-
10u/35
3216
Prepare for VA for mecha less model
GND GND
SSM3J332R
BREM
IC201
BD49101AEFS
1 44
VOUT5 ADJ5
GND
2 43 R238
1k
EN
VIN0
3 REG4EN 42 R239
1k
BCAP
4 41
R240 1k
ECO
VINSW
5 40
BSENS
NC1
6 39
REG4OCB
HSW
7 38 R246
0
GND4 SDA
8 37
R245 0
SW2 SCL
9 36
FB2 SYNC
C238 CCG1192-A
35
10
INV2 GND1
2125 10u
EP 34
11
VOUT0 RT
DGND
45 33
12
VIN1 GND2
32
13
ADJ1 VOUT3
31 C224
14
VOUT1 ADJ3
1608
R222
30 1u/10
15
ADJ2
VIN3
C225 39k J
29
16
VOUT2 VIN4
1u/10 C226
28
17
1608 NM
CLCAL
GND3
27
18
VOCAL
NC2
GND
26
19
VIN2 ADJ4
25
20
SNSH VOUT4
R217
24
21
SNSL INV1
23
CCN1401-A 22
2125 GATE1 FB1
C227
R247
NM 1608 390p/50
R223 C228
39k
680p/50
FET-P VD6V
L202
CTH1584-A-TLB
10u
Q203
GND
BREM TUN3.3V USB5V VD6V
EN
USB_CTL
ECO
BSENS
USB_FLAG
PW_SDA
PW_SCL
SYNC_1
TUN3.3V
Meccha less:
R236:NM
R237:47K
GND GND
USB5_1
C233
NM
GND
GND
GND
MODEL
A MVH-280FD/XNEW5
B MVH-X285FD/XNES
EN
USB_CTL
ECO
BSENS
A 5/11
USB_FLG
PW_SDA
PW_SCL
SYNC
VDSENS
A
2/11