Panasonic DMR-EH49ECA, Service Manual

Page: 50 / 99

S-5
DMR-EH49A, EH59A, EX79A
Main P.C.B. Power Supply Block Diagram (2/2)
FET
D S
G
Q1501
(DR+5V OUT)
1 4
2
5
6
3
H
PS+5V
GND
5V
AU+5V
AU+5V
L
I/O P SAVE
IC3001- 36
PS+11.6V
IC3001- 46
(REG. AU+5V)
IC4001
VOUT VIN 5
2
:ON
H :ON
3
4
GND
DR+5V
(REG.DR+5V)
IC1506
VOUT VIN 4
3 1
2
GND
CONT
(REG.+3.3V)
IC7303
VIN 5
2 3
1
GND
H :ON
(REG.+1.5V)
IC7304
VOUT VIN 5
2 3
4
GND
IC1501
(VOLT DET.)
VOUT VCC 1
3
2
GND
94 84 42 IC3001- / /
(REG. 5V)
IC3002
VOUT
CONT
5
2
3
GND
1 VIN
5 6 10 1 IC7301- / 13 / / / / / 20 21
28 / 35 /
30 23 IC7301- /
40 25 8 6 IC3001- / / /
(REG. PS+5V)
IC3003
VOUT VIN 5
3 2
1
CONT
MAIN P.C.B.
E
C
A
B
D
IC7302
5 4 VIN OUT
(RESET)
34 IC7301-
4
P1503
TO HDD
1
P1503
DR+5V
DR+12V
DR P ON
QR1503
( H : ON)
P59001 P7402
56,58
P59001 P7402
48,50
P59001 P7402
66,68,70,72
P59001 P7402
53
P59001 P7402
29
P59001 P7402
62,64
P59001 P7402
38
Q7801, QR7801
X SW +3.8V
TU P ON
TO U/V TUNER
D+3.8V
TO U/V TUNER
H
PS +11.6V
IC4002
VOUT VIN 3
5
:ON
2
1
GND
FROM DIGITAL P.C.B.
ANALOG TIMER
BLOCK SECTION
FROM DIGITAL P.C.B.
TO DIGITAL P.C.B.
ANALOG TIMER
BLOCK SECTION
HDD P FAIL
IC7802
(5V REGULATOR)
4
3
5
+5V
P59001 P7402
36
(REG. AU+11.6V)
VOUT
TO DIGITAL P.C.B.
TO DIGITAL P.C.B.
ANALOG TIMER
BLOCK SECTION
TO DIGITAL P.C.B.
P59001 P7402
34
TO U/V TUNER
VOUT VIN
:ON H
VOUT
(REG. ACTIV+5V)
IC7801
VIN 5
3 6
2
GND
CONT 3 IC7501-
GND
(REG.D+3.3V)
IC7803
VIN 3
2 5
1 VOUT
H :ON
PS90002 P7802
6,7
TO
BACKEND P.C.B.
PS90002
P7802
9
TO
BACKEND P.C.B.
DR+5V
(EX79EGA Only)
(for EX79A )
(Except EX79EBA)
FROM /TO FROM MAIN P.C.B.
ANAROG AUDIO BLOCK SECTION
AND
ANAROG VIDEO BLOCK SECTION
TO U/V TUNER
S3.1.2. Main P.C.B. Power Supply Block Diagram (2)