Panasonic DMR-UBS80EG, Service Manual

Page: 86 / 93

86
11.2. Power Supply Block Diagram
D11301
D11309
Q11301
G
D
S
DRIVER
REGULATOR
8
7 3
6
IC11301
ON/OFF
CONTROL
1 5 4
2
MAIN SW
GATE CONTROL
STANDBY
VCC ZCD
D11308
Q11304, D11310
OUT OCL VIN
CONTROL
NC GND
FB
OVERCURRENT
DETECTION
Z/C DETECTION
GATE ON TRIGGER
MAIN P.C.B. DIGITAL P.C.B.
2
3
1
4
R
IC12202
(ERROR VOLTAGE DET.)
(ST 3.3V)
IC6811
K A
DMR-UBS80EG/UBS90EG
Power Supply Block Diagram
D13201
(FEED BACK)
Q12201
1
2 3
4
+
-
~
~
N
L
RECTIFIER
D11101,C11105
HOT COLD
6
5
3
P2
B1
B2
1
P1
12
11
10
8
9
7
POWER
TRANSFORMER
T11302
VA11101,L11101
F11101
ABSORBER
SURGE
AND
SUPPRESSOR
SURGE
P11101
AC SOCKET
1
P6702 P58807
TO
HDD
TO
BD DRIVE
11,12,13,14,15
P58807 P6702 PW PX SW +12.3V
TO
FRONT DOT FL
P.C.B.
FROM TIMER
BLOCK SECTION
H
IP59501
2 1
H
H
QR59504
(FL VF ON :ON)
L
Q59507
( :ON)
H
QR58701
(DR P ON :ON)
L
Q58701
( :ON)
QR59508
(FL BSB ON :ON)
L
QR59507
( :ON)
H FL VF ON
62 IC59501-
H FL BSB ON
63 IC59501-
H
DR P ON
41 IC59501-
IC58701
(REG. DR +5V)
VIN
EN
SW 2
IP58701
1 2
IP58802
1
2
IP58803
1
2
IP58804
1
5
3 2
IC58502
(REG. X SW +3.8V)
VIN
EN
SW
VDD OUT
2
IP58501
1
2
(RESET)
IC58501
1
5
3 2
IC58601
(REG. X SW +5.1V)
VIN
EN
SW 2
IP58601
1
5
3 2
IC58801
(REG. FL +5V)
VIN
EN
VOUT
7
P7201 P58802
3
1 6
FL +5V
FL +3.3V
DR +12V
HDD +5V
PW X SW +3.3V
IC59507
(REG. X SW +3.3V)
VIN VOUT
:ON
9
P7201 P58802
10,11
P58810
9
P58810
9,10,11
P58805
3,4,5
P58805
8
P7201 P58802
1
4 3
6
P7201 P58802 FL +12V