FET
D
S
G
Q1501
(DR+5V OUT)
1
2
3
5
6
7
8
4
H
H
H
L
L
X SW+5.8V
JC REG.+5V
PS+5V
GND
5V
AU+5V
ANA+5V
TU P ON
IC7501- 43
SECTION
TIMER
FROM
(REG.AU+5V)
VOUT
VIN
5
2
:ON
H :ON
3
4
GND
CONT
(REG.ANA+5V)
VOUT
VIN
5
2
3
1
GND
DR+5V
X SW+3.8V
(REG.DR+5V)
VOUT
VIN
4
3
1
2
GND
TUNER P.C.B.
U/V TUNER
TU7801
5V(VIF)
BTL+30V
5V(TUNER)
B
17
16
7
1
K7810
(REG.+5V)
VOUT
VIN
3
5
:ON
2
1
GND
3
10
17
PS7801
PS7801
PS7801
PP7401
PP7401
PP7401
94
84
42
IC3001- / /
(REG.5V)
VOUT
CONT
5
2
3
GND
1 VIN
IC7501- 12
IR7501- 3
90
99
62
IC7501- / /
73
IC7501-
2
IC4901-
RESET
P FAIL
OUT
(RESET)
VDD
4
5
(RESET)
OUT
VDD
1
2
D7509
4
1
3
2
X SW+5.2V
CONT
5
(REG.X SW+5.2V)
VOUT
VIN
1
4
8
GND
40
25
8
6
IC3001- / / /
(REG.PS+5V)
VOUT
VIN
1
5
4
8
CONT
DIGITAL P.C.B.
MAIN P.C.B.
5V
JC REG+5V
UNREG+38V
DR+12V
DMR-EH55EC/EP,EH56EG
Power Supply Block Diagram
DMR-EH55EC/EP,EH56EG
Power Supply Block Diagram
35
Except(EG)
6
3
IC7301- / /
1
3
VDD
OUT
(RESET)
26
IC7301-
FB
S
CS
EXT
D
2
6
5
1
G
3
Q59501
(REG.D+12V)
4
8
ON/OFF 2
5
7
VIN
1
IC59501
(DC-DC CONVERTER)
IC50001/IC53003/IC53202/
I5V)
IC50001/IC53001/IC53003/I3.3V)
VIN
1
2
3
VOUT
(REG.D+3.3V)
IC50001/IC55004/I
C55006/I3.3V)
Q7513-
IC59504
ON
D+3.8V
60,62
P7402
P59001
ANA+3.3V
D+3.3V
56
P7402
P59001
42
P7402
P59001
34
P7402
P59001
52
P7402
P59001
ANA+5V
76
P7402
P59001
D+12V
64,66,68,70,72,74
P59001
P7402
POWER OFF
30
P59001
P7402
4
P1103
TO HDD
1
P1103
25
AU+5V
DR+5V
DR+12V
IC54402/I5V)
P59001
P7402
14,16
P59001
P7402
IC7501- 98
2
IP50001
1
QR59501,
59502
I12V)
22,24
DR+5V
P59001
P7402
2
IP50002
1
IC50002/I5V)
L
POWER OFF 3
L
G
H
VIN
8
5
1
VOUT
(REG.D+3.3V)
IC59506
ON H
I2.5V)
VIN
1
3
5
VOUT
(REG.ANA+2.5V)
IC59502
CONT
I1.5V)
VIN
1
3
5
VOUT
(REG.D+1.5V)
IC59503
CONT
VIN
1
2
3
VOUT
(REG.D+2.5V)
IC59505
ON H
L
(HDD PFAIL OUT)
3
2
4
5
VOUT
VCC
+
-
Vref
H
DR P ON
IC7501- 42
SECTION
TIMER
FROM
L
HDD PFAIL
IC7501- 40
QR1503
H
( :ON)
Содержание DMR-EH55EC
Страница 7: ...3 2 Caution for DivX 4 Specifications 7 ...
Страница 8: ...8 ...
Страница 11: ...11 ...
Страница 12: ...12 ...
Страница 13: ...13 ...
Страница 17: ...5 Put deck upward and push out Tray by Eject Pin JZS0484 or minus screw driver small ...
Страница 48: ...10 7 DV Jack P C B 1 Remove 1 Screw A to remove DV Jack P C B 10 8 HDD 36 ...
Страница 49: ...1 Remove ATAPI Connector and HDD Power Connector 2 Remove 4 Screws A to remove HDD Angle with HDD 37 ...
Страница 55: ...11 1 2 Checking and Repairing of RAM Digital P C B Module 43 ...
Страница 56: ...11 1 3 Checking and Repairing of Main P C B 44 ...
Страница 57: ...11 1 4 Checking and Repairing of HDD 45 ...
Страница 58: ...11 2 Caution for Replacing Parts 11 2 1 Items that should be done after replacing parts 46 ...
Страница 70: ...16 1 2 Packing Accessories Section 58 ...
Страница 78: ...66 ...
Страница 167: ...Ref No MODE E C B REC 3 8 1 2 3 1 PLAY 3 8 1 2 3 1 STOP 3 8 1 2 3 1 Q7802 ...