Power Supply Block Diagram - Pioneer DV-2750-S Service Manual

1

3.2 POWER SUPPLY BLOCK DIAGRAM

A
CN1013
(24P)
SPINDLE
OEIC
MOTOR
VCC
2
B
PICKUP
ASSY-S
V+5S
C
ST2-
STEPPING
M
MOTOR
ST2+
ST1+
ST1-
CN601
CN602
LOAD-
2 1
LOAD+
– +
M
1 2
D
S101
SW2
3
LOADING
GND
MOTOR
4
ASSY
SW1
5
A
LOAB ASSY
E
LIVE
AC IN
NEUTRAL
F
POWER SUPPLY
E
UNIT
16
1
2
B
DVDM ASSY
CN101
ı1/4
(24P)
V+5S
2
IC301
MT1336E-L1-K
RF IC
ı1/4
CN102
(12P)
IC101
V+5S
M63018FP
1
FTS DRIVER
Focus,
Tracking,
Stepper,
Spindle,
Loading Drive
and
FG Detection
CN104
1
2
3
4
CN103
1
2
3
V+5S
4
5
CN2
(13P)
-28V
13
FL DC+
12
CN1
FL DC-
11
1
EV+4V
8
SW+3.3V
7
EV+6.8V(A)
2
5
EV+6.8V(B)
4
SW+12V
2
2
3
ı2/4
V+3_RF
2,5,14,22,
37,54,64,67,
69,109,114,
120
36,55,66,
V+3_BE 97,108,111,
130,150,
185,192
V+3_BEA
11,
212
17,42,72,
V+2R5
82,120,
140,182
VYW2200
FLASH ROM
ı2/4
3,22, V+6
32,39
V+12
V+2R5
IC401
V+3 V+6 V+12
PQ1M505M2SPQ
5V REG.
V+6B
4
IC402
PQ1M255M2SPQ
2.5V REG.
CN401
4
(13P)
13
12
11
8
IC403
7
S-L2980A33MC-C6S
3V REG.
5
4
1,3
2
DV-2750-S
3
4
ı2/4
IC60
BR24L02FV-W
V+3_BE
EEPROM
8
IC601
MT1379EE-L1-K
DVD IC
IC603 IC602
K4S641632F-TC75-K
64M SDRAM
12 37
1,3,9,14,
27,43,49
ı2/4
V+3_BE
V+3_BE
V+5S V+5V
V+5 V+2R5
5
CN105
(15P)
5
V+3E
IC400
PST3228
RESET
5 2 1
4
187
X601
186
-28V
4
FL DC+
6
FL DC-
2
+3.3V
5
RESET
8