Panasonic DMR-EZ49VEG, Руководство по обслуживанию

Страница: 60 / 157

S-8
S3.2. Main P.C.B. Regulator Block Diagram
EXTCTL4
IC3901- 38
H
EXTCTL3
IC3901- 36
H
POWER ON
IC6001- 75
H
BIAS
IC6001- 21
H
H
13,15
P6001 MECHA +12.5V
X SW +5.8V
P9101
11,12
P6004 P9104
X SW +12V
12
P6003 P9103
BE +3.3V
8,9,10
P6004 P9104
AD +5V AD +5V
2
P6001 P9101
1
P2571
Q4004
(POWER SUPPLY)
Q4501,D4502
QR4005
( : ON)
:ON
H :ON
3
V OUT
+5V
+5V
2
P2571
MECHA +12.5V
1 4
IC6302
(REG. +5 V)
V IN
GND
2
V OUT 5
1
IC7401
(REG. B5V)
V IN
CONT
H
19
TO
IC2501-
CONT
5
V OUT
REG.A +5V
OSD +5V
FROM
SYSTEM CONTROL &
SERVO SECTION
FROM
SYSTEM CONTROL &
SERVO SECTION
TO
CAPSTAN MOTOR
OSC BIAS
1 8
IC3002
(REG. OSD +5 V )
V IN
22
TO
IC3001-
,
47
,
50
60
,
84
,
92
,
52
,
53 IC6001-
PS +11.6V
46
TO
IC3901-
TO
U/VTUNER
1 21 ,
TO
IC2501-
42 84 94 , ,
TO
IC3901-
6 8 25 40 ,
,
, ,
TO
IC3901-
37 99
TO
IC6001-
3 IC3905-
TO
U/VTUNER
6
TO
T4001-
Q4502
(POWER SUPP LY)
QR4501
( : ON)
H
Q4901
( POWER SUPPLY )
QR4901
( H ON )
+12V
58
TO
IC4501-
+5.8V X_SW_5R8V
6,7
PS90002 P7402
TO
Backend P.C.B.
TO
FRONT JACK P.C.B.
IC7601 -
BE +3.3V
11
PP4801 PS6002
25 40 ,
TO
IC4501-
Q6305,D6306
REG. +5V
V REG +5V
98
TO
IC6001-
FROM
DIGITAL IF P.C.B.
3
GND
2
CONT
3
V OUT 5 1
IC7402
(REG. PS +5V)
V IN
GND
2 3
V OUT 5 4
IC7403
(REG. +5V)
V IN
MAIN P.C.B.
3
DMR-EZ49VEG/EC/EB
MAIN P.C.B
Regulator Block Diagram